/* ==========================================================================
   Base Design System & Theme Variables
   ========================================================================== */
:root {
  /* Color Palette */
  --primary-hue: 222;
  --primary-sat: 76%;
  --primary-light: 48%;

  --accent-hue: 175;
  --accent-sat: 84%;
  --accent-light: 32%;

  /* Typography */
  --font-primary:
    "Outfit", "Noto Sans KR", -apple-system, BlinkMacSystemFont, sans-serif;

  /* Global Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Border Radii */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Theme: Light (Default) */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --card-bg: rgba(255, 255, 255, 0.8);
  --card-border: rgba(226, 232, 240, 0.8);
  --text-primary: #0f172a;
  --text-secondary: #44546b;
  --text-muted: #64748b;

  --color-primary: hsl(var(--primary-hue), var(--primary-sat), 48%);
  --color-primary-hover: hsl(var(--primary-hue), var(--primary-sat), 40%);
  --color-primary-rgb: 29, 78, 216;

  --color-accent: hsl(var(--accent-hue), var(--accent-sat), 32%);
  --color-accent-hover: hsl(var(--accent-hue), var(--accent-sat), 26%);
  --color-accent-rgb: 13, 148, 136;

  --color-error: #dc2626;
  --color-success: #0f9d6b;
  --color-warning: #d97706;
  --color-info: #2563eb;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 24px 48px rgba(15, 23, 42, 0.12);

  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-blur: 16px;

  --hero-gradient: linear-gradient(
    135deg,
    #0b1f4d 0%,
    #13316e 55%,
    #1d4ed8 100%
  );
  --hero-image: url("assets/hero-transformer-ai.webp");
  --hero-placeholder: url("data:image/webp;base64,UklGRnoAAABXRUJQVlA4IG4AAADQBQCdASo4ACAAPuVko06pKiMiN/1YAUAciWcAzfw0q6PGReEg1iq0UlO38zoiKZwK50H3uvAAAP7w7uW3shyQZUlEaBJ4m+O6mW1IDMGM8rqmUs7NhvZBT6RkCXXmHAeSTnI0UCC+Ep0YrwsAAA==");
  --hero-text: #ffffff;
}

/* Theme: Dark */
html[data-theme="dark"] {
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-tertiary: #1e293b;
  --card-bg: rgba(15, 23, 42, 0.75);
  --card-border: rgba(255, 255, 255, 0.08);
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;

  --color-primary: #4f86f7;
  --color-primary-hover: #7aa5fb;
  --color-primary-rgb: 79, 134, 247;

  --color-accent: #2dd4bf;
  --color-accent-hover: #5eead4;
  --color-accent-rgb: 45, 212, 191;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 12px 36px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.6);

  --glass-bg: rgba(9, 13, 22, 0.7);
  --glass-border: rgba(255, 255, 255, 0.05);
  --glass-blur: 20px;

  --hero-gradient: linear-gradient(
    135deg,
    #020617 0%,
    #0b1f3f 60%,
    #15336e 100%
  );
  --hero-text: #f8fafc;
}

/* ==========================================================================
   Reset & Global Styles
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  /* Keep anchored section tops clear of the fixed header (scrolled height ≈ 66px) */
  scroll-padding-top: 66px;
  scrollbar-gutter: stable;
  overflow-y: scroll;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition:
    background-color var(--transition-normal),
    color var(--transition-normal);
  overflow-x: hidden;
}

body.scroll-locked {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

img,
svg {
  max-width: 100%;
  vertical-align: middle;
}

button,
input,
select,
textarea {
  font-family: inherit;
}

/* Scrollbar Style */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: var(--radius-full);
  border: 3px solid var(--bg-secondary);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* ==========================================================================
   Utility Classes & Layout Elements
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 36px 0;
  /* Each section fills at least one screen; taller content grows and scrolls */
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.bg-light {
  background-color: var(--bg-secondary);
}

.grid {
  display: grid;
  gap: 32px;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 992px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .section-padding {
    padding: 32px 0;
  }
}

/* Spacing Helpers */
.m-b-xs {
  margin-bottom: 8px;
}
.m-b-sm {
  margin-bottom: 16px;
}
.m-b-md {
  margin-bottom: 24px;
}
.m-b-lg {
  margin-bottom: 32px;
}
.m-b-xl {
  margin-bottom: 48px;
}
.m-b-xxl {
  margin-bottom: 64px;
}
.m-t-md {
  margin-top: 24px;
}
.m-t-lg {
  margin-top: 32px;
}

.text-center {
  text-align: center;
}
.text-muted {
  color: var(--text-muted);
}
.text-xs {
  font-size: 0.75rem;
}
.w-full {
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(var(--color-primary-rgb), 0.25);
}
.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.35);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover {
  background-color: var(--color-primary);
  color: #ffffff;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
}

.badge-accent {
  background-color: rgba(var(--color-accent-rgb), 0.15);
  color: var(--color-accent);
}

.badge-error {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--color-error);
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
}

.badge-info {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--color-info);
}

/* Card layout */
.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-normal),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal);
}
.card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--color-primary-rgb), 0.3);
}

/* Section Title Typography */
.section-title-wrapper {
  margin-bottom: 24px;
}
.section-subtitle {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}
.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.section-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: none;
  margin: 0 auto;
}
.subsection-title {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.95rem;
  }
  .section-description {
    font-size: 1rem;
  }
}

/* ==========================================================================
   Header & Sticky Nav
   ========================================================================== */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  transition:
    background-color var(--transition-normal),
    backdrop-filter var(--transition-normal),
    box-shadow var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.main-header.scrolled {
  background-color: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--card-border);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: padding var(--transition-normal);
}

.main-header.scrolled .header-container {
  padding: 12px 24px;
}

/* Transparent header over the dark hero — use light text for contrast.
   Once scrolled, the glass background appears and default colors apply. */
.main-header:not(.scrolled) .logo-text,
.main-header:not(.scrolled) .logo-text span {
  color: #ffffff;
}

.main-header:not(.scrolled) .nav-link {
  color: rgba(255, 255, 255, 0.85);
}

.main-header:not(.scrolled) .nav-link:hover,
.main-header:not(.scrolled) .nav-link.active {
  color: #ffffff;
}

.main-header:not(.scrolled) .nav-link::after {
  background-color: #ffffff;
}

.main-header:not(.scrolled) .theme-toggle-btn,
.main-header:not(.scrolled) .mobile-menu-btn {
  background-color: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}

.main-header:not(.scrolled) .theme-toggle-btn:hover {
  background-color: rgba(255, 255, 255, 0.22);
}

.main-header:not(.scrolled) .mobile-menu-btn span {
  background-color: #ffffff;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(var(--color-primary-rgb), 0.3);
  overflow: hidden;
  flex-shrink: 0;
}

.logo-icon img {
  display: block;
  width: 100%;
  height: 100%;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  min-width: 0;
}

.logo-text span {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.logo-text .logo-main-line {
  min-width: 0;
  font-size: inherit;
  font-weight: inherit;
  color: inherit;
}

.logo-member-count-mobile {
  display: none;
}

.nav-menu ul {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
  position: relative;
  padding: 8px 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

/* Self-contained chip: keeps strong contrast over the dark hero AND the
   glass header, so it never depends on the background behind it. */
.member-count {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 5px 16px 5px 6px;
  border-radius: var(--radius-full);
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-sm);
  line-height: 1;
  white-space: nowrap;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    border-color var(--transition-fast);
}

.member-count:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--color-primary-rgb), 0.4);
}

.mc-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-accent)
  );
  color: #ffffff;
}

.mc-icon svg {
  width: 17px;
  height: 17px;
}

.mc-body {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.mc-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.mc-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.mc-value strong {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-right: 1px;
}

.mc-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-accent);
  box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0.5);
  animation: mcPulse 2s infinite;
}

@keyframes mcPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0.5);
  }
  70% {
    box-shadow: 0 0 0 7px rgba(var(--color-accent-rgb), 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .mc-pulse {
    animation: none;
  }
}

/* Hide the badge on very narrow screens to keep the mobile header tidy */
@media (max-width: 560px) {
  .member-count {
    display: none;
  }
}

@media (max-width: 576px) {
  .header-container,
  .main-header.scrolled .header-container {
    padding: 16px;
    gap: 10px;
  }

  .logo-area {
    gap: 9px;
    flex: 1 1 auto;
  }

  .logo-icon {
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
  }

  .logo-text {
    font-size: clamp(0.9rem, 4.1vw, 1.03rem);
    overflow: hidden;
  }

  .logo-text span {
    font-size: clamp(0.67rem, 3vw, 0.76rem);
  }

  .logo-text,
  .logo-text span {
    white-space: nowrap;
    text-overflow: ellipsis;
  }

  .logo-text .logo-main-line {
    display: block;
    overflow: hidden;
  }

  .logo-member-count-mobile {
    display: inline;
    font-size: 0.72em;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.78);
  }

  .logo-member-count-mobile strong {
    font-weight: 900;
  }

  .header-actions {
    gap: 8px;
  }
}

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.theme-toggle-btn:hover {
  background-color: var(--card-border);
  transform: scale(1.05);
}

.theme-toggle-btn .sun-icon {
  display: none;
}
.theme-toggle-btn .moon-icon {
  display: block;
}

html[data-theme="dark"] .theme-toggle-btn .sun-icon {
  display: block;
}
html[data-theme="dark"] .theme-toggle-btn .moon-icon {
  display: none;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: var(--bg-tertiary);
  border: none;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 10px;
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-fast);
}

@media (max-width: 992px) {
  .nav-menu,
  .btn-join-header {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
}

/* Mobile Drawer Overlay & Layout */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100%;
  z-index: 1002;
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  padding: 32px 24px;
  transition: right var(--transition-normal);
}

.mobile-drawer.open {
  right: 0;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 48px;
}

.drawer-close-btn {
  font-size: 2rem;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--text-secondary);
}

.drawer-links {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: auto;
}

.drawer-link {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-secondary);
}
.drawer-link:hover {
  color: var(--color-primary);
}

.drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1001;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  background-color: #102a5f;
  background:
    var(--hero-placeholder),
    var(--hero-gradient),
    #102a5f;
  background-position: center;
  background-size: cover;
  color: var(--hero-text);
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 0 140px;
  overflow: hidden;
  isolation: isolate;
}

.hero-bg-image {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  transform: scale(1.01);
  transition: opacity 0.35s ease-out;
  pointer-events: none;
}

.hero-section.hero-image-ready .hero-bg-image {
  opacity: 1;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(
      90deg,
      rgba(7, 20, 50, 0.86) 0%,
      rgba(18, 49, 110, 0.72) 48%,
      rgba(29, 78, 216, 0.42) 100%
    ),
    linear-gradient(180deg, rgba(2, 6, 23, 0.02), rgba(2, 6, 23, 0.54));
  pointer-events: none;
}

/* Floating animation background shapes */
.hero-section::before {
  content: "";
  position: absolute;
  top: -10%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: var(--radius-full);
  background: radial-gradient(
    circle,
    rgba(var(--color-primary-rgb), 0.2) 0%,
    transparent 70%
  );
  z-index: 0;
  pointer-events: none;
}

.hero-section::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 120px;
  background: linear-gradient(
    180deg,
    rgba(2, 6, 23, 0) 0%,
    rgba(15, 37, 82, 0.34) 56%,
    rgba(15, 37, 82, 0.34) 78%,
    var(--bg-primary) 100%
  );
  z-index: 0;
  pointer-events: none;
}

.hero-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 48px;
}

.hero-content {
  max-width: 580px;
  min-width: 0;
}

.hero-badge {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(4px);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 40px;
  overflow-wrap: break-word;
}

.hero-actions-group {
  display: flex;
  gap: 16px;
  min-width: 0;
}

.hero-actions-group .btn-outline {
  border-color: rgba(255, 255, 255, 0.3);
  color: #ffffff;
}
.hero-actions-group .btn-outline:hover {
  background-color: #ffffff;
  color: #0f172a;
}

/* Quick Card Panel */
.hero-quick-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
  max-width: 440px;
  min-width: 0;
}

.quick-card {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  gap: 20px;
  min-width: 0;
  transition: all var(--transition-normal);
}

.quick-card:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.qc-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  flex-shrink: 0;
}

.qc-icon.urgent {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
}

.qc-info {
  flex-grow: 1;
  min-width: 0;
}

.qc-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.6);
  display: block;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.qc-title {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  line-clamp: 2;
  -webkit-line-clamp: 2;
}

.qc-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: #ffffff;
  opacity: 0.8;
}
.qc-link:hover {
  opacity: 1;
}

.hero-ai-credit {
  position: absolute;
  right: 24px;
  bottom: 84px;
  z-index: 2;
  padding: 5px 9px;
  border-radius: var(--radius-full);
  background-color: rgba(2, 6, 23, 0.24);
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1;
  pointer-events: none;
}

.qc-progress-container {
  width: 100%;
  height: 6px;
  background-color: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  margin-top: 10px;
  overflow: hidden;
}

.qc-progress-bar {
  height: 100%;
  background-color: var(--color-accent);
  border-radius: var(--radius-full);
}

@media (max-width: 992px) {
  .hero-container {
    flex-direction: column;
    align-items: stretch;
    gap: 48px;
  }
  .hero-content {
    max-width: 100%;
    text-align: center;
  }
  .hero-badge {
    margin: 0 auto 24px;
  }
  .hero-actions-group {
    justify-content: center;
  }
  .hero-quick-cards {
    max-width: 100%;
  }
  .hero-title {
    font-size: 2.8rem;
  }
}

@media (max-width: 576px) {
  .hero-section {
    min-height: auto;
    padding: 126px 0 88px;
  }

  .hero-bg-overlay {
    background:
      linear-gradient(
        180deg,
        rgba(7, 20, 50, 0.88) 0%,
        rgba(18, 49, 110, 0.78) 44%,
        rgba(12, 33, 74, 0.9) 100%
      );
  }

  .hero-ai-credit {
    position: relative;
    right: auto;
    bottom: auto;
    z-index: 1;
    align-self: flex-end;
    margin: 18px 16px 0 auto;
    font-size: 0.65rem;
  }

  .hero-container {
    padding: 0 16px;
    gap: 28px;
  }

  .hero-badge {
    max-width: 100%;
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    white-space: normal;
  }

  .hero-title {
    font-size: clamp(2rem, 11vw, 2.55rem);
    letter-spacing: 0;
  }

  .hero-subtitle {
    font-size: 1.02rem;
    margin-bottom: 30px;
  }

  .hero-actions-group {
    flex-direction: column;
    gap: 12px;
    width: 100%;
  }

  .hero-actions-group .btn {
    width: 100%;
    max-width: 100%;
    padding: 15px 18px;
  }

  .quick-card {
    gap: 14px;
    padding: 18px;
  }

  .qc-icon {
    width: 42px;
    height: 42px;
  }

  .qc-title {
    max-width: none;
  }
}

/* ==========================================================================
   Tab Navigation & General Tabs System
   ========================================================================== */
.tab-headers {
  display: flex;
  justify-content: center;
  border-bottom: 1px solid var(--card-border);
  margin-bottom: 48px;
  padding-bottom: 2px;
}

.scroll-x {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  white-space: nowrap;
  justify-content: flex-start;
  overscroll-behavior-x: contain;
  touch-action: pan-x pan-y;
  user-select: none;
}
.scroll-x.is-dragging-scroll {
  cursor: grabbing;
}
.scroll-x::-webkit-scrollbar {
  height: 4px;
}
.scroll-x::-webkit-scrollbar-thumb {
  background-color: var(--card-border);
}

@media (hover: none), (pointer: coarse) {
  .scroll-x {
    scroll-behavior: auto;
    touch-action: pan-x pan-y;
    user-select: auto;
  }

  .scroll-x .tab-btn,
  .scroll-x .filter-btn {
    transition: none;
  }
}

.tab-btn {
  flex: 0 0 auto;
  border: none;
  background: transparent;
  padding: 16px 28px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}

.tab-btn::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.tab-btn.active {
  color: var(--color-primary);
}

.tab-btn.active::after {
  transform: scaleX(1);
}

.tab-contents .tab-pane {
  display: none;
}

.tab-contents .tab-pane.active {
  display: block;
}

.tab-contents .tab-pane[hidden] {
  display: none;
}

/* Fade In Animation utility */
.fade-in {
  animation: fadeInAnimation var(--transition-slow);
}

@keyframes fadeInAnimation {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   SECTION 1 Content: About Us
   ========================================================================== */

.about-tabs {
  margin-top: 8px;
}

#about.section-padding,
#join-guide.section-padding,
#notices.section-padding,
#negotiation.section-padding {
  justify-content: flex-start;
}

#about .container,
#join-guide .container,
#notices .container,
#negotiation .container {
  flex: 0 0 auto;
}

/* 1-1. 설립 취지 (Purpose) */
.purpose-text-side {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.pane-title {
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.pane-paragraph {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.pane-values {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.value-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.value-icon {
  background-color: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.value-icon svg {
  width: 24px;
  height: 24px;
}

.value-item h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.value-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.purpose-illust-side {
  display: flex;
  align-items: center;
  justify-content: center;
}

.gradient-glass-card {
  width: 100%;
  max-width: 440px;
  height: 380px;
  background: linear-gradient(
    135deg,
    rgba(var(--color-primary-rgb), 0.1) 0%,
    rgba(var(--color-accent-rgb), 0.1) 100%
  );
  border: 1px solid var(--card-border);
  backdrop-filter: blur(var(--glass-blur));
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.circle-graphic {
  position: relative;
  width: 280px;
  height: 280px;
  margin-top: 10px;
}

.circle {
  position: absolute;
  width: 132px;
  height: 132px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.35;
  text-align: center;
  color: #ffffff;
  border: 3px solid var(--bg-primary);
  box-shadow: var(--shadow-md);
  transition:
    transform var(--transition-normal),
    box-shadow var(--transition-normal);
}

.circle:hover {
  transform: scale(1.05);
  z-index: 4;
  box-shadow: var(--shadow-lg);
}

.circle.c1 {
  top: 18px;
  left: 74px;
  z-index: 3;
  background: linear-gradient(150deg, #2f5fe0 0%, #1d4ed8 100%);
}

.circle.c2 {
  top: 118px;
  left: 20px;
  z-index: 1;
  background: linear-gradient(150deg, #119e8c 0%, #0d9488 100%);
}

.circle.c3 {
  top: 118px;
  left: 128px;
  z-index: 2;
  background: linear-gradient(150deg, #3b4860 0%, #283449 100%);
}

@media (max-width: 576px) {
  .gradient-glass-card {
    height: 320px;
    padding: 28px;
  }
  .circle-graphic {
    width: 240px;
    height: 240px;
  }
  .circle {
    width: 112px;
    height: 112px;
    font-size: 0.9rem;
  }
  .circle.c1 {
    top: 14px;
    left: 64px;
  }
  .circle.c2 {
    top: 102px;
    left: 18px;
  }
  .circle.c3 {
    top: 102px;
    left: 110px;
  }
}

/* 1-2. 위원장 인사말 (Greeting) */
.grid-greeting {
  grid-template-columns: 320px 1fr;
  gap: 48px;
}

.greeting-photo-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.photo-placeholder {
  width: 100%;
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow-sm);
}

.avatar-design {
  width: 100%;
  height: 260px;
  background: linear-gradient(
    135deg,
    var(--bg-tertiary) 0%,
    var(--card-border) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.photo-info {
  width: 100%;
  padding: 20px;
  background-color: var(--card-bg);
  border-top: 1px solid var(--card-border);
  text-align: center;
}

.photo-info .name {
  font-size: 1.15rem;
  font-weight: 800;
  display: block;
  margin-bottom: 4px;
}

.photo-info .title {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.greeting-text-wrapper {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.greeting-intro {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: block;
}

.signature {
  margin-top: 32px;
  font-size: 1.05rem;
}

@media (max-width: 768px) {
  .grid-greeting {
    grid-template-columns: 1fr;
  }
  .avatar-design {
    height: 200px;
  }
}

/* 1-3. 노동조합 연혁 (History Timeline) */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  left: 120px;
  height: 100%;
  width: 2px;
  background-color: var(--card-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 48px;
  display: flex;
  gap: 40px;
}

.timeline-dot {
  position: absolute;
  left: 115px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background-color: var(--bg-primary);
  border: 3px solid var(--color-primary);
  z-index: 1;
  transition: all var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
  transform: scale(1.3);
  background-color: var(--color-primary);
}

.timeline-date {
  width: 100px;
  text-align: right;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--color-primary);
  padding-top: 2px;
  flex-shrink: 0;
}

.timeline-content {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  flex-grow: 1;
}

.timeline-content h4 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

@media (max-width: 576px) {
  .timeline::before {
    left: 20px;
  }
  .timeline-dot {
    left: 15px;
  }
  .timeline-item {
    flex-direction: column;
    gap: 12px;
    padding-left: 40px;
  }
  .timeline-date {
    text-align: left;
    width: auto;
  }
}

/* 1-4. 조직도 (Organization Chart) */
.org-chart-wrapper {
  --org-line: #dbe3ef;
  --org-card-height: 104px;
  --org-committee-width: 260px;
  --org-dept-width: 220px;
  --org-committee-gap: 34px;
  --org-dept-gap: 28px;
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: 4px 0 12px;
}

.org-level {
  position: relative;
  display: grid;
  width: 100%;
  justify-content: center;
  align-items: stretch;
}

.org-level-root {
  place-items: center;
}

.org-level-committees {
  grid-template-columns: repeat(3, var(--org-committee-width));
  gap: var(--org-committee-gap);
}

.org-level-departments {
  grid-template-columns: repeat(4, var(--org-dept-width));
  gap: var(--org-dept-gap);
}

.org-connector {
  position: relative;
  width: 100%;
  background: none;
  margin: 0;
}

.org-connector-top {
  height: 42px;
  --org-drop: 18px;
}

.org-connector-bottom {
  height: 46px;
  --org-drop: 20px;
}

.org-connector::before,
.org-connector::after {
  content: "";
  position: absolute;
  left: 50%;
  background-color: var(--org-line);
  transform: translateX(-50%);
}

.org-connector::before {
  top: 0;
  bottom: var(--org-drop);
  width: 2px;
}

.org-connector::after {
  bottom: var(--org-drop);
  height: 2px;
}

.org-connector-top::after {
  width: calc((var(--org-committee-width) + var(--org-committee-gap)) * 2);
}

.org-connector-bottom::after {
  width: calc((var(--org-dept-width) + var(--org-dept-gap)) * 3);
}

.org-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: var(--org-card-height);
  padding: 18px 20px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.org-level-committees .org-card::before,
.org-level-departments .org-card::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 100%;
  width: 2px;
  height: 18px;
  background-color: var(--org-line);
  transform: translateX(-50%);
}

.org-level-departments .org-card::before {
  height: 20px;
}

.org-root {
  width: 230px;
  min-height: 112px;
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border-color: transparent;
  box-shadow: var(--shadow-md);
}

.org-card-label {
  display: inline-flex;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-tertiary);
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.org-root .org-card-label {
  background-color: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.82);
}

.org-node.clickable,
.org-dept-card {
  cursor: pointer;
}

.org-node.clickable:hover,
.org-dept-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.org-node.primary {
  background: linear-gradient(180deg, rgba(var(--color-primary-rgb), 0.08), rgba(var(--color-primary-rgb), 0.04));
  border-color: rgba(var(--color-primary-rgb), 0.28);
}

.org-node.clickable.is-active,
.org-dept-card.is-active {
  border-color: var(--color-primary);
  box-shadow: 0 12px 28px rgba(var(--color-primary-rgb), 0.16);
}

.org-root h4,
.org-node h4,
.org-dept-card h5 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.org-root h4 {
  font-size: 1.12rem;
}

.org-root p,
.org-node p,
.org-dept-card p {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.org-root p {
  color: rgba(255, 255, 255, 0.78);
}

.org-dept-card h5 {
  color: var(--color-primary);
}

.org-dept-card .org-card-label {
  color: var(--color-accent);
  background-color: rgba(var(--color-accent-rgb), 0.1);
}

.org-detail-panel {
  background-color: var(--bg-tertiary);
  padding: 24px;
  border-radius: var(--radius-md);
  width: 100%;
  text-align: center;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.org-detail-panel h4 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.org-detail-panel p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

@media (max-width: 900px) {
  .org-chart-wrapper {
    max-width: 560px;
  }
  .org-level-committees,
  .org-level-departments {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .org-connector::before,
  .org-connector::after,
  .org-level-committees .org-card::before,
  .org-level-departments .org-card::before {
    display: none;
  }
  .org-connector {
    height: 18px;
  }
  .org-card {
    min-height: auto;
  }
}

/* 1-5. 임원 소개 (Officers Grid) */
.officers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.officer-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.officer-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.officer-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  background-color: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
}

.officer-avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  background: linear-gradient(
    135deg,
    var(--bg-tertiary) 0%,
    var(--card-border) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-secondary);
  margin: 0 auto 20px;
  border: 3px solid var(--bg-primary);
  box-shadow: var(--shadow-sm);
}

.officer-card h4 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.officer-dept {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.officer-task {
  font-size: 0.85rem;
  color: var(--text-muted);
}

@media (max-width: 992px) {
  .officers-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .officers-grid {
    grid-template-columns: 1fr;
  }
}

/* 1-6. 규약 및 규정 (Bylaws Accordion) */
/* Bylaws header row: title on the left, search aligned to the right */
.bylaws-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 560px);
  align-items: end;
  gap: 24px;
  width: 100%;
  margin: 0 0 32px;
}

.bylaws-header .pane-title {
  margin-bottom: 0;
}

.bylaws-title-group {
  min-width: 0;
}

.bylaws-meta {
  margin-top: 6px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.bylaws-actions {
  display: grid;
  grid-template-columns: auto minmax(240px, 420px);
  align-items: stretch;
  justify-content: end;
  gap: 12px;
  min-width: 0;
}

.bylaws-actions .btn {
  flex-shrink: 0;
  white-space: nowrap;
}

.search-box-container {
  width: 100%;
  max-width: 100%;
  flex-shrink: 0;
}

.bylaws-search-result {
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 0.84rem;
  font-weight: 600;
}

.bylaws-search-mark {
  padding: 0 2px;
  border-radius: 3px;
  background-color: rgba(250, 204, 21, 0.34);
  color: inherit;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

@media (max-width: 1024px) {
  .bylaws-header {
    grid-template-columns: 1fr;
    align-items: stretch;
    gap: 14px;
  }
  .bylaws-header .pane-title {
    max-width: 100%;
  }
  .bylaws-actions {
    grid-template-columns: auto minmax(0, 1fr);
    justify-content: stretch;
  }
  .search-box-container {
    min-width: 0;
  }
}

@media (max-width: 480px) {
  .bylaws-actions {
    grid-template-columns: 1fr;
  }
  .bylaws-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

.form-control {
  width: 100%;
  padding: 14px 20px;
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}

.form-control:disabled {
  background:
    linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.06), transparent),
    var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: not-allowed;
  opacity: 1;
}

.btn-sm {
  padding: 10px 14px;
  font-size: 0.86rem;
}

.date-picker-input {
  cursor: pointer;
}

.form-control[type="date"] {
  color-scheme: light;
  min-height: 50px;
}

html[data-theme="dark"] .form-control[type="date"] {
  color-scheme: dark;
}

.form-control[type="date"]::-webkit-calendar-picker-indicator {
  width: 18px;
  height: 18px;
  padding: 6px;
  border-radius: var(--radius-sm);
  background-color: rgba(var(--color-primary-rgb), 0.1);
  cursor: pointer;
}

.form-control[type="date"]::-webkit-calendar-picker-indicator:hover {
  background-color: rgba(var(--color-primary-rgb), 0.18);
}

.custom-date-picker {
  position: fixed;
  z-index: 2800;
  padding: 16px;
  border: 1px solid rgba(var(--color-primary-rgb), 0.18);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.22);
  color: var(--text-primary);
}

.custom-date-picker[hidden] {
  display: none;
}

.date-picker-header {
  display: grid;
  grid-template-columns: 38px 1fr 38px;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.date-picker-selects {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 8px;
}

.date-picker-selects select {
  min-width: 0;
  height: 38px;
  padding: 0 28px 0 10px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 900;
  cursor: pointer;
}

.date-picker-selects select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
}

.date-picker-nav,
.date-picker-footer button,
.date-picker-day {
  border: 0;
  font: inherit;
  cursor: pointer;
}

.date-picker-nav {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 900;
}

.date-picker-nav:hover,
.date-picker-footer button:hover {
  background-color: rgba(var(--color-primary-rgb), 0.12);
  color: var(--color-primary);
}

.date-picker-weekdays,
.date-picker-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.date-picker-weekdays {
  margin-bottom: 6px;
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 800;
  text-align: center;
}

.date-picker-day {
  height: 34px;
  border-radius: var(--radius-sm);
  background-color: transparent;
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 700;
}

.date-picker-day:hover {
  background-color: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
}

.date-picker-day.muted {
  color: var(--text-muted);
  opacity: 0.55;
}

.date-picker-day.today {
  outline: 2px solid rgba(var(--color-accent-rgb), 0.38);
  outline-offset: -2px;
}

.date-picker-day.selected {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 8px 18px rgba(var(--color-primary-rgb), 0.28);
}

.date-picker-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--card-border);
}

.date-picker-footer button {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 0.84rem;
  font-weight: 800;
}

.bylaws-accordion {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.accordion-item {
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  background-color: var(--card-bg);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.accordion-trigger small {
  display: inline-block;
  margin-left: 8px;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.accordion-trigger .icon {
  font-size: 1.3rem;
  color: var(--text-secondary);
  transition: transform var(--transition-fast);
}

.accordion-item.active .accordion-trigger .icon {
  transform: rotate(45deg);
}

.accordion-content {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition:
    max-height var(--transition-normal) ease-out,
    padding var(--transition-normal) ease-out;
}

.accordion-item.active .accordion-content {
  padding: 0 24px 24px;
  max-height: none;
  overflow: visible;
}

.bylaws-articles {
  display: grid;
  gap: 22px;
}

.bylaws-article {
  padding-top: 22px;
  border-top: 1px solid var(--card-border);
}

.bylaws-article:first-child {
  padding-top: 0;
  border-top: 0;
}

.bylaws-article h4 {
  margin-bottom: 10px;
  color: var(--color-primary);
  font-size: 1.02rem;
  font-weight: 800;
  line-height: 1.45;
}

.bylaws-article p,
.bylaws-list,
.bylaws-sublist {
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.78;
}

.bylaws-article p {
  margin: 0;
}

.bylaws-clause {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  align-items: start;
}

.bylaws-article p + .bylaws-clause,
.bylaws-clause + .bylaws-clause,
.bylaws-list + .bylaws-clause,
.bylaws-sublist + .bylaws-clause {
  margin-top: 9px;
}

.clause-marker {
  color: var(--color-primary);
  font-weight: 800;
}

.bylaws-list,
.bylaws-sublist {
  display: grid;
  gap: 6px;
  margin: 10px 0 0;
  padding-left: 1.35rem;
}

.bylaws-list li,
.bylaws-sublist li {
  padding-left: 3px;
}

.bylaws-sublist {
  list-style: none;
  padding-left: 0;
}

/* ==========================================================================
   SECTION 2: 가입안내 (Membership Guide)
   ========================================================================== */
.join-overview {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: 24px;
  margin-bottom: 24px;
}

.join-eligibility-panel,
.join-fee-panel,
.join-process-panel {
  padding: 32px;
}

.join-eligibility-panel {
  background:
    linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.1), transparent 58%),
    var(--card-bg);
}

.join-kicker {
  display: inline-flex;
  width: fit-content;
  color: var(--color-primary);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.join-eligibility-panel h3 {
  max-width: 720px;
  font-size: 2rem;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.join-eligibility-panel p,
.join-fee-panel p {
  color: var(--text-secondary);
}

.join-quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.join-fee-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.join-fee-header strong {
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background-color: rgba(var(--color-accent-rgb), 0.12);
  color: var(--color-accent);
  font-size: 0.78rem;
}

.fee-list {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.fee-list div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--card-border);
}

.fee-list div:last-child {
  border-bottom: none;
}

.fee-list dt {
  color: var(--text-secondary);
  font-weight: 700;
}

.fee-list dd {
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 800;
}

.fee-list dd span {
  display: block;
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.join-benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}

.benefit-card {
  padding: 24px;
}

.benefit-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  background-color: rgba(var(--color-primary-rgb), 0.1);
  margin-bottom: 18px;
}

.benefit-icon svg {
  width: 22px;
  height: 22px;
}

.benefit-card h3 {
  font-size: 1.08rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.benefit-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.join-process-panel {
  margin-bottom: 32px;
}

.join-process-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.join-process-header h3 {
  font-size: 1.35rem;
  font-weight: 800;
}

.join-process-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.join-process-list li {
  display: flex;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  background-color: var(--bg-primary);
}

.join-process-list span {
  color: var(--color-accent);
  font-size: 0.82rem;
  font-weight: 800;
}

.join-process-list h4 {
  font-size: 0.98rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.join-process-list p {
  color: var(--text-secondary);
  font-size: 0.86rem;
}

.join-faq-header {
  text-align: center;
  margin-bottom: 22px;
}

@media (max-width: 992px) {
  .join-overview,
  .join-benefit-grid,
  .join-process-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .join-eligibility-panel,
  .join-fee-panel,
  .join-process-panel {
    padding: 24px;
  }
  .join-eligibility-panel h3 {
    font-size: 1.55rem;
  }
  .join-quick-actions .btn {
    width: 100%;
  }
  .join-process-header {
    display: block;
  }
}

/* FAQ Accordion */
.faq-accordion {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  background-color: var(--card-bg);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  border: none;
  background: transparent;
  font: inherit;
  color: inherit;
  text-align: left;
  padding: 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question h4 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.faq-toggle-icon {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-secondary);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition:
    max-height var(--transition-normal) ease-out,
    padding var(--transition-normal) ease-out;
}

.faq-item.active .faq-answer {
  padding: 0 24px 24px;
  max-height: 700px;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* 2-5. 가입 신청 Wizard Form */
.wizard-container {
  max-width: 750px;
  margin: 0 auto;
  padding: 48px;
  box-shadow: var(--shadow-md);
}

/* Online join CTA (opens the modal) */
.join-cta {
  max-width: 600px;
  margin: 0 auto;
}

/* Online join modal — holds the wizard form */
.join-modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.join-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.join-modal-overlay .wizard-container {
  position: relative;
  width: 100%;
  max-width: 920px;
  margin: 0;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  transform: translateY(30px);
  transition: transform var(--transition-normal);
}

.join-modal-overlay.open .wizard-container {
  transform: translateY(0);
}

.wizard-header {
  margin-bottom: 40px;
}

.wizard-header h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.wizard-progress {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-top: 32px;
}

.wizard-progress::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 10%;
  right: 10%;
  height: 2px;
  background-color: var(--bg-tertiary);
  z-index: 0;
}

.progress-step {
  background-color: var(--bg-primary);
  border: 2px solid var(--bg-tertiary);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  z-index: 1;
  transition: all var(--transition-fast);
}

.progress-step.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.progress-step.completed {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.wizard-step-pane {
  display: none;
}

.wizard-step-pane.active {
  display: block;
  animation: slideInLeft var(--transition-normal);
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-honeypot {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.form-submit-message {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(220, 38, 38, 0.22);
  background-color: rgba(220, 38, 38, 0.08);
  color: var(--color-error);
  font-size: 0.9rem;
  font-weight: 700;
}

.form-submit-message[data-type="info"] {
  border-color: rgba(var(--color-primary-rgb), 0.22);
  background-color: rgba(var(--color-primary-rgb), 0.08);
  color: var(--color-primary);
}

.form-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.wizard-footer-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
  margin-top: 32px;
}

/* Agreement box */
.agreement-box {
  background-color: var(--bg-tertiary);
  padding: 24px;
  max-height: 280px;
  overflow-y: auto;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  border: 1px solid var(--card-border);
}

.agreement-box h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.privacy-notice {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid rgba(var(--color-primary-rgb), 0.18);
  border-radius: var(--radius-sm);
  background-color: rgba(var(--color-primary-rgb), 0.06);
  color: var(--text-secondary);
  text-align: left;
}

.privacy-notice strong {
  display: block;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.dues-notice {
  margin-top: 14px;
  padding: 16px;
  border: 1px solid rgba(var(--color-accent-rgb), 0.22);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(135deg, rgba(var(--color-accent-rgb), 0.1), transparent),
    var(--bg-primary);
  color: var(--text-secondary);
  text-align: left;
}

.dues-notice strong {
  display: block;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.dues-notice p {
  margin: 0;
  font-size: 0.9rem;
}

.privacy-notice ul {
  list-style: disc;
  padding-left: 18px;
}

.privacy-notice li + li {
  margin-top: 4px;
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.checkbox-group input {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.checkbox-group label {
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

.signature-box {
  text-align: center;
}

/* Success screen */
.success-icon {
  color: var(--color-success);
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.success-icon svg {
  width: 72px;
  height: 72px;
}

#wizard-step-3 h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 12px;
}

#wizard-step-3 p {
  color: var(--text-secondary);
}

.success-receipt-card {
  width: 100%;
  max-width: 560px;
  margin: 0 auto 20px;
  padding: 16px 18px;
  border: 1px solid rgba(var(--color-primary-rgb), 0.24);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.08), transparent),
    var(--bg-primary);
  text-align: left;
}

.success-receipt-card span {
  display: block;
  margin-bottom: 4px;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.success-receipt-card strong {
  display: block;
  color: var(--color-primary);
  font-size: 1.35rem;
  line-height: 1.3;
  letter-spacing: 0;
}

.success-receipt-card p {
  margin: 8px 0 0;
  font-size: 0.9rem;
}

.success-next-steps {
  display: grid;
  gap: 10px;
  margin: 0 auto 24px;
  max-width: 560px;
  list-style: none;
  text-align: left;
}

.success-next-steps li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  background-color: var(--bg-primary);
}

.success-next-steps span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background-color: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  font-size: 0.84rem;
  font-weight: 900;
}

.success-next-steps strong {
  display: block;
  margin-bottom: 3px;
  color: var(--text-primary);
  font-size: 0.94rem;
}

.success-next-steps p {
  margin: 0;
  font-size: 0.86rem;
}

@media (max-width: 768px) {
  .wizard-container {
    padding: 24px;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .wizard-progress {
    flex-direction: row;
    gap: 6px;
    align-items: center;
    justify-content: space-between;
  }
  .wizard-progress::before {
    display: block;
    left: 8%;
    right: 8%;
  }
  .progress-step {
    flex: 1 1 0;
    min-width: 0;
    padding: 6px 8px;
    font-size: 0.78rem;
    text-align: center;
    white-space: nowrap;
  }
}

/* ==========================================================================
   SECTION 3: 공지사항 (Notice Board)
   ========================================================================== */
.board-controls {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
}

.grid-controls {
  grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
}

.board-tabs {
  display: flex;
  gap: 8px;
  padding-bottom: 4px;
}

.filter-btn {
  border: 1px solid var(--card-border);
  background-color: var(--card-bg);
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  color: #ffffff;
}

.board-search {
  position: relative;
}

.board-search::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 16px;
  width: 16px;
  height: 16px;
  border: 2px solid var(--text-muted);
  border-radius: 50%;
  transform: translateY(-55%);
  pointer-events: none;
}

.board-search::after {
  content: "";
  position: absolute;
  top: calc(50% + 6px);
  left: 29px;
  width: 8px;
  height: 2px;
  border-radius: var(--radius-full);
  background-color: var(--text-muted);
  transform: rotate(45deg);
  pointer-events: none;
}

.board-search .form-control {
  min-height: 46px;
  padding-left: 46px;
  border-radius: var(--radius-full);
  background-color: var(--bg-primary);
}

.notice-board-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
  padding: 16px 18px;
  border: 1px solid rgba(var(--color-primary-rgb), 0.14);
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.08), transparent 56%),
    var(--bg-primary);
}

.notice-board-summary strong {
  display: block;
  font-size: 1rem;
  font-weight: 900;
  color: var(--text-primary);
}

.notice-board-summary span {
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.notice-summary-link {
  flex-shrink: 0;
  color: var(--color-primary);
  font-size: 0.88rem;
  font-weight: 800;
}

.notice-summary-link:hover {
  color: var(--color-primary-hover);
}

.notices-list-container {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.notice-list-header {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr) 128px 86px;
  gap: 16px;
  padding: 16px 22px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--card-border);
  font-weight: 800;
  font-size: 0.82rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.notice-item {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr) 128px 86px;
  gap: 16px;
  padding: 20px 22px;
  border-bottom: 1px solid var(--card-border);
  font-size: 0.95rem;
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    border-left var(--transition-fast),
    transform var(--transition-fast);
  align-items: center;
  border-left: 3px solid transparent;
}

.notice-item:last-child {
  border-bottom: none;
}

.notice-item:hover {
  background-color: var(--bg-tertiary);
  border-left-color: var(--color-primary);
  transform: translateX(2px);
}

.notice-item:focus-visible {
  outline: 3px solid rgba(var(--color-primary-rgb), 0.28);
  outline-offset: -3px;
}

.notice-item.urgent-item {
  background:
    linear-gradient(90deg, rgba(239, 68, 68, 0.08), transparent 36%),
    var(--card-bg);
}

.notice-item.urgent-item:hover {
  background-color: rgba(239, 68, 68, 0.06);
  border-left-color: var(--color-error);
}

.notice-item .col-title {
  min-width: 0;
  font-weight: 800;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.notice-item .col-date,
.notice-item .col-views {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.notice-item .col-views {
  text-align: right;
}

.notice-empty-state {
  padding: 42px 24px;
  text-align: center;
  border-top: 1px solid var(--card-border);
}

.notice-empty-state strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.notice-empty-state span {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

@media (max-width: 768px) {
  .board-controls {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
  }
  .grid-controls {
    grid-template-columns: 1fr;
  }
  .board-tabs {
    margin: 0 -24px;
    padding: 0 24px 6px;
  }
  .filter-btn {
    padding: 10px 14px;
    font-size: 0.82rem;
  }
  .notice-board-summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 15px 16px;
  }
  .notice-list-header {
    display: none;
  }
  .notices-list-container {
    border-radius: var(--radius-sm);
    background-color: transparent;
    border: 0;
    box-shadow: none;
    overflow: visible;
  }
  .notice-list-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .notice-item {
    grid-template-columns: 1fr auto;
    column-gap: 14px;
    row-gap: 10px;
    padding: 17px;
    border: 1px solid var(--card-border);
    border-left: 4px solid transparent;
    border-radius: var(--radius-sm);
    background-color: var(--card-bg);
    box-shadow: var(--shadow-sm);
  }
  .notice-item:hover {
    transform: none;
  }
  .notice-item .col-category {
    grid-column: 1;
  }
  .notice-item .col-title {
    grid-column: 1 / span 2;
    font-size: 1rem;
    line-height: 1.45;
    padding-right: 0;
    white-space: normal;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    line-clamp: 2;
    -webkit-line-clamp: 2;
  }
  .notice-item .col-date {
    grid-column: 1;
    font-size: 0.8rem;
  }
  .notice-item .col-views {
    grid-column: 2;
    text-align: right;
    font-size: 0.8rem;
  }
  .notice-item .col-views::before {
    content: "조회 ";
  }
  .notice-empty-state {
    padding: 36px 18px;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    background-color: var(--card-bg);
  }
}

@media (max-width: 480px) {
  .board-tabs {
    margin: 0 -16px;
    padding-inline: 16px;
  }
  .notice-board-summary {
    margin-bottom: 12px;
  }
}

/* ==========================================================================
   SECTION 4: 교섭센터 (Bargaining Center)
   ========================================================================== */

/* 4-1. 교섭 현황 대시보드 */
.negotiation-dashboard {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.85fr);
  gap: 24px;
  margin-bottom: 24px;
}

.negotiation-status-panel {
  padding: 32px;
  background:
    linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.1), transparent 55%),
    var(--card-bg);
}

.status-label,
.metric-label,
.panel-kicker {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  text-transform: uppercase;
}

.negotiation-status-panel h3 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 8px 0 10px;
}

.negotiation-status-panel p {
  max-width: 620px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.status-progress {
  height: 10px;
  overflow: hidden;
  border-radius: var(--radius-full);
  background-color: var(--bg-tertiary);
  margin-bottom: 14px;
}

.status-progress span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.status-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.status-meta strong {
  color: var(--text-primary);
}

.status-process {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--card-border);
  overflow-x: auto;
}

.status-process-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.status-process-heading h4 {
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.negotiation-metrics {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.metric-card {
  padding: 20px;
}

.metric-card strong {
  display: block;
  font-size: 1.6rem;
  line-height: 1.2;
  margin: 6px 0;
}

.metric-card p {
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.negotiation-history-panel,
.demand-history-panel,
.agreement-download-panel {
  padding: 28px;
  margin-bottom: 24px;
}

.bargaining-round-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.bargaining-round-card {
  display: flex;
  min-height: 230px;
  flex-direction: column;
  padding: 18px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  background-color: var(--bg-primary);
}

.round-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.round-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 30px;
  padding: 0 10px;
  border-radius: var(--radius-full);
  background-color: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 900;
}

.round-card-top time {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.bargaining-round-card h4 {
  margin-bottom: 8px;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.35;
}

.bargaining-round-card p {
  flex: 1;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.round-status {
  display: inline-flex;
  align-self: flex-start;
  margin-top: 16px;
  padding: 5px 9px;
  border-radius: var(--radius-sm);
  font-size: 0.74rem;
  font-weight: 800;
}

.round-status.done {
  background-color: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
}

.round-status.partial {
  background-color: rgba(var(--color-accent-rgb), 0.12);
  color: var(--color-accent);
}

.round-status.pending {
  background-color: rgba(217, 119, 6, 0.12);
  color: var(--color-warning);
}

.negotiation-detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  gap: 24px;
}

.demand-history-list {
  display: grid;
  gap: 16px;
  list-style: none;
}

.demand-history-list li {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--card-border);
}

.demand-history-list li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.demand-history-list time {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 34px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 900;
}

.demand-history-list strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text-primary);
  font-size: 0.98rem;
}

.demand-history-list p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.agreement-download-panel {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.agreement-download-panel h3 {
  margin: 8px 0 10px;
  font-size: 1.25rem;
  font-weight: 800;
}

.agreement-download-panel p {
  margin-bottom: 18px;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.agreement-download-panel .btn:disabled {
  cursor: not-allowed;
  opacity: 0.56;
}

.agreement-download-panel small {
  display: block;
  margin-top: 14px;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.issue-board {
  padding: 32px;
  margin-bottom: 24px;
}

.issue-board-full .panel-heading h3 {
  font-size: 1.55rem;
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.panel-heading h3 {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.timeline-steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(var(--timeline-step-count, 5), minmax(96px, 1fr));
  gap: 0;
  min-width: 100%;
}

.timeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  padding: 0 6px;
}

.timeline-step > div {
  margin-top: 8px;
}

.timeline-step::after {
  content: "";
  position: absolute;
  top: 15px;
  left: 50%;
  width: 100%;
  height: 2px;
  background-color: var(--card-border);
  z-index: 0;
}

.timeline-step.completed::after {
  background-color: var(--color-primary);
}

.timeline-step:last-child::after {
  display: none;
}

.step-marker {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-muted);
  background-color: var(--bg-tertiary);
  border: 2px solid var(--card-border);
  z-index: 1;
}

.timeline-step.completed .step-marker {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.timeline-step.current .step-marker {
  background-color: var(--bg-primary);
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(var(--color-accent-rgb), 0.14);
}

.timeline-step h4 {
  font-size: 0.82rem;
  font-weight: 800;
  margin-bottom: 2px;
}

.timeline-step p {
  color: var(--text-secondary);
  font-size: 0.72rem;
}

.issue-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
}

.issue-comparison-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
}

.issue-comparison-table th,
.issue-comparison-table td {
  text-align: left;
  vertical-align: top;
  padding: 16px 18px;
  border-bottom: 1px solid var(--card-border);
}

.issue-comparison-table thead th {
  padding-top: 13px;
  padding-bottom: 13px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  background-color: var(--bg-tertiary);
  border-bottom: 2px solid var(--card-border);
}

.issue-comparison-table thead .col-union {
  color: var(--color-primary);
}

.issue-comparison-table thead .col-company {
  color: var(--color-warning);
}

.issue-comparison-table tbody tr:last-child th,
.issue-comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.issue-comparison-table tbody tr:hover {
  background-color: rgba(var(--color-primary-rgb), 0.04);
}

.issue-comparison-table tbody th {
  width: 160px;
  white-space: nowrap;
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--text-primary);
}

.issue-no {
  display: inline-flex;
  margin-right: 8px;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  background-color: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  font-size: 0.72rem;
  font-weight: 800;
}

.issue-comparison-table td {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.issue-comparison-table .cell-union {
  border-left: 3px solid var(--color-primary);
}

.issue-comparison-table .cell-company {
  border-left: 3px solid var(--color-warning);
}

@media (max-width: 640px) {
  .issue-table-wrap {
    overflow-x: visible;
    border: none;
    border-radius: 0;
  }

  .issue-comparison-table {
    display: block;
    min-width: 0;
  }

  .issue-comparison-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .issue-comparison-table tbody {
    display: grid;
    gap: 14px;
  }

  .issue-comparison-table tbody tr {
    display: block;
    overflow: hidden;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
  }

  .issue-comparison-table tbody tr:hover {
    background-color: var(--bg-primary);
  }

  .issue-comparison-table tbody th,
  .issue-comparison-table tbody td {
    display: block;
    width: 100%;
    border-bottom: 1px solid var(--card-border);
  }

  .issue-comparison-table tbody th {
    white-space: normal;
    padding: 15px 16px;
    background-color: rgba(var(--color-primary-rgb), 0.06);
  }

  .issue-comparison-table tbody td {
    padding: 14px 16px 15px;
  }

  .issue-comparison-table tbody tr:last-child th {
    border-bottom: 1px solid var(--card-border);
  }

  .issue-comparison-table tbody tr:last-child td:last-child,
  .issue-comparison-table tbody td:last-child {
    border-bottom: none;
  }

  .issue-comparison-table .cell-union,
  .issue-comparison-table .cell-company {
    border-left: none;
  }

  .issue-comparison-table .cell-union::before,
  .issue-comparison-table .cell-company::before {
    display: block;
    margin-bottom: 6px;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.04em;
  }

  .issue-comparison-table .cell-union::before {
    content: "노조 요구";
    color: var(--color-primary);
  }

  .issue-comparison-table .cell-company::before {
    content: "회사 제시";
    color: var(--color-warning);
  }
}

@media (max-width: 992px) {
  .negotiation-dashboard {
    grid-template-columns: 1fr;
  }
  .bargaining-round-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .negotiation-detail-grid {
    grid-template-columns: 1fr;
  }
  .negotiation-metrics {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .negotiation-status-panel,
  .issue-board,
  .negotiation-history-panel,
  .demand-history-panel,
  .agreement-download-panel {
    padding: 22px;
  }
  .bargaining-round-grid {
    grid-template-columns: 1fr;
  }
  .negotiation-metrics {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .timeline-steps {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .timeline-step {
    flex-direction: row;
    align-items: flex-start;
    text-align: left;
    gap: 14px;
    padding: 0 0 22px;
  }
  .timeline-step > div {
    margin-top: 6px;
  }
  .timeline-step::after {
    top: 30px;
    left: 14px;
    width: 2px;
    height: calc(100% - 30px);
  }
  .timeline-step:last-child {
    padding-bottom: 0;
  }
}

/* 4-4. 교섭 속보 News Ticker */
.breaking-news-container {
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-left: 4px solid var(--color-error);
}

.bn-badge {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--color-error);
  background-color: rgba(239, 68, 68, 0.1);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  text-transform: uppercase;
  animation: blinker 1.5s linear infinite;
}

@keyframes blinker {
  50% {
    opacity: 0.4;
  }
}

.bn-ticker-wrapper {
  flex-grow: 1;
  overflow: hidden;
  height: 24px;
  position: relative;
}

.bn-ticker {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  animation: tickerVertical 12s infinite;
}

.bn-ticker li {
  font-size: 0.95rem;
  font-weight: 700;
  height: 24px;
  line-height: 24px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@keyframes tickerVertical {
  0%,
  25% {
    transform: translateY(0);
  }
  33%,
  58% {
    transform: translateY(-24px);
  }
  66%,
  91% {
    transform: translateY(-48px);
  }
  100% {
    transform: translateY(0);
  }
}

/* ==========================================================================
   Notice Modal Window
   ========================================================================== */
.notice-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  padding: 24px;
}

.notice-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.notice-modal-card {
  width: 100%;
  max-width: 700px;
  padding: 40px;
  position: relative;
  transform: translateY(30px);
  transition: transform var(--transition-normal);
}

.notice-modal-overlay.open .notice-modal-card {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 2.2rem;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
}

.modal-header {
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 20px;
  margin-bottom: 24px;
}

.modal-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 12px 0;
  line-height: 1.3;
}

.modal-meta {
  display: flex;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.modal-body {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-height: 350px;
  overflow-y: auto;
  padding-right: 12px;
}

.modal-body p {
  margin-bottom: 16px;
}

.modal-body h4 {
  margin: 20px 0 8px;
  font-size: 0.98rem;
  line-height: 1.45;
  color: var(--text-primary);
}

.modal-body ul {
  list-style: disc;
  padding-left: 20px;
  margin: 0 0 16px;
}

.modal-body li + li {
  margin-top: 6px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 32px;
  border-top: 1px solid var(--card-border);
  padding-top: 20px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.main-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--card-border);
  padding: 80px 0 40px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-desc {
  max-width: 440px;
}

.footer-contact h4 {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-contact p {
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.footer-icon {
  width: 16px;
  height: 16px;
  margin-top: 4px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.footer-divider {
  border: 0;
  height: 1px;
  background-color: var(--card-border);
  margin-bottom: 32px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-terms {
  display: flex;
  gap: 20px;
}

.footer-terms button {
  border: 0;
  background: transparent;
  color: inherit;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}
.footer-terms button:hover {
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}