:root {
  --campus-bg: radial-gradient(circle at 14% 10%, #153a8d 0%, transparent 36%),
    radial-gradient(circle at 84% 20%, #106ca2 0%, transparent 34%),
    linear-gradient(130deg, #050d24 0%, #0b1b43 48%, #13285f 100%);
  --campus-text: #edf5ff;
  --campus-soft: rgba(228, 238, 255, 0.78);
  --campus-accent: #88c7ff;
  --campus-accent-strong: #58b0ff;
  --campus-surface: rgba(255, 255, 255, 0.09);
  --campus-surface-strong: rgba(255, 255, 255, 0.14);
}

[data-theme="light"] {
  --campus-bg: radial-gradient(circle at 14% 8%, #dbe7f7 0%, transparent 36%),
    radial-gradient(circle at 84% 20%, #d8eef7 0%, transparent 34%),
    linear-gradient(128deg, #fffdf8 0%, #f8f4ea 54%, #f0e9dc 100%);
  --campus-text: #13264b;
  --campus-soft: rgba(19, 38, 75, 0.72);
  --campus-accent: #315da8;
  --campus-accent-strong: #2b4f8d;
  --campus-surface: rgba(255, 255, 255, 0.44);
  --campus-surface-strong: rgba(255, 255, 255, 0.66);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body.campus-card-shell {
  font-family: "Manrope", "Noto Sans SC", sans-serif;
  color: var(--campus-text);
  background: var(--campus-bg);
  overflow-x: hidden;
  position: relative;
}

/* Ensure JS toggled hidden attributes are never overridden by layout display rules. */
body.campus-card-shell [hidden] {
  display: none !important;
}

.campus-card-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(136, 199, 255, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(136, 199, 255, 0.07) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: radial-gradient(circle at center, black 38%, transparent 88%);
  animation: campusGridDrift 20s linear infinite;
}

.campus-card-glow {
  position: fixed;
  border-radius: 999px;
  filter: blur(42px);
  opacity: 0.48;
  pointer-events: none;
}

.campus-card-glow-a {
  width: 430px;
  height: 430px;
  left: -90px;
  top: 56px;
  background: rgba(111, 183, 255, 0.3);
  animation: campusGlowA 11s ease-in-out infinite;
}

.campus-card-glow-b {
  width: 350px;
  height: 350px;
  right: -40px;
  top: 24%;
  background: rgba(78, 218, 255, 0.2);
  animation: campusGlowB 10s ease-in-out infinite;
}

.campus-card-topbar {
  position: fixed;
  top: 14px;
  left: 18px;
  right: 18px;
  z-index: 24;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
}

.campus-card-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--campus-text);
  padding: 9px 14px;
  border-radius: 999px;
  background: var(--campus-surface);
}

.campus-card-brand-back {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  font-size: 14px;
  line-height: 1;
  background: color-mix(in oklab, var(--campus-surface-strong) 90%, transparent);
}

.campus-card-menu {
  display: inline-flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.campus-card-menu a {
  text-decoration: none;
  color: var(--campus-soft);
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--campus-surface) 90%, transparent);
  transition: transform 0.25s ease, color 0.25s ease;
}

.campus-card-menu a:hover,
.campus-card-menu a[aria-current="page"] {
  color: var(--campus-text);
  transform: translateY(-1px);
}

.campus-card-right-tools {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.campus-card-nav-panel {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.campus-card-nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  border: 0;
  border-radius: 999px;
  padding: 9px 12px;
  color: var(--campus-text);
  background: var(--campus-surface);
  cursor: pointer;
}

.campus-card-nav-toggle svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.campus-card-theme-toggle {
  border: 0;
  border-radius: 999px;
  padding: 9px 13px;
  color: var(--campus-text);
  background: var(--campus-surface);
  cursor: pointer;
  font-family: "Sora", "Noto Sans SC", sans-serif;
}

.campus-card-progress {
  position: fixed;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  display: grid;
  gap: 10px;
}

.campus-card-progress::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  border-radius: 2px;
  background: color-mix(in oklab, var(--campus-soft) 44%, transparent);
}

.campus-progress-item {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--campus-soft);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.campus-progress-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: color-mix(in oklab, var(--campus-soft) 60%, transparent);
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--campus-soft) 36%, transparent);
  transition: transform 0.2s ease, background 0.2s ease;
}

.campus-progress-label {
  font-size: 12px;
  letter-spacing: 0.03em;
  opacity: 0;
  transform: translateX(5px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.campus-progress-item.active .campus-progress-dot,
.campus-progress-item:hover .campus-progress-dot {
  background: var(--campus-accent);
  transform: scale(1.7);
}

.campus-progress-item.active .campus-progress-label,
.campus-progress-item:hover .campus-progress-label {
  opacity: 0.9;
  transform: translateX(0);
}

main {
  position: relative;
  z-index: 10;
  padding-top: 0;
  padding-right: 52px;
  margin-top: -2px;
}

.campus-hero {
  position: relative;
  min-height: calc(100svh - var(--campus-topbar-h, 72px));
  padding: clamp(42px, 8vh, 76px) 8vw;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 20px;
}

.campus-hero-inner {
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(18px, 4vw, 64px);
  transform: translateY(clamp(-34px, -2.6vh, -18px));
}

.campus-hero-copy {
  max-width: 920px;
  text-align: left;
}

.campus-hero-kicker,
.campus-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--campus-soft);
}

.campus-hero h1 {
  margin: 14px 0 0;
  font-family: "Sora", "Noto Sans SC", sans-serif;
  font-size: clamp(42px, 8vw, 96px);
  line-height: 0.96;
  display: grid;
  gap: 2px;
  justify-items: start;
}

.campus-hero h1 span:last-child {
  color: var(--campus-accent);
  text-shadow: 0 0 26px color-mix(in oklab, var(--campus-accent) 36%, transparent);
}

.campus-hero-subtitle {
  margin: 18px 0 0;
  max-width: 760px;
  font-size: clamp(16px, 2vw, 22px);
  line-height: 1.74;
  color: var(--campus-soft);
}

.campus-hero-side {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
}

.campus-go-action-btn {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 16px;
  font-family: "Sora", "Noto Sans SC", sans-serif;
  color: #ffffff;
  background: linear-gradient(135deg, var(--campus-accent-strong), var(--campus-accent));
  box-shadow: 0 12px 26px rgba(19, 65, 146, 0.3);
  cursor: pointer;
}

.campus-scroll-hint {
  position: absolute;
  left: 50%;
  bottom: max(16px, calc(env(safe-area-inset-bottom) + 8px));
  transform: translateX(-50%);
  border: 0;
  border-radius: 999px;
  padding: 11px 15px;
  color: var(--campus-text);
  background: var(--campus-surface);
  cursor: pointer;
}

.campus-section {
  max-width: 1120px;
  padding: 52px 8vw 6px;
  display: grid;
  gap: 14px;
}

.campus-section h2 {
  margin: 0;
  font-family: "Sora", "Noto Sans SC", sans-serif;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.02;
}

.campus-section p {
  margin: 0;
  font-size: clamp(15px, 1.8vw, 20px);
  line-height: 1.78;
  color: var(--campus-soft);
}

.campus-quick-facts {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.campus-quick-facts li {
  padding: 12px 2px;
  display: grid;
  gap: 6px;
}

.campus-quick-facts strong {
  font-size: clamp(20px, 2.8vw, 30px);
  color: var(--campus-accent);
  font-family: "Sora", "Noto Sans SC", sans-serif;
}

.campus-quick-facts span {
  color: var(--campus-soft);
  font-size: 13px;
}

.campus-markdown {
  display: grid;
  gap: 10px;
  line-height: 1.85;
}

.campus-markdown p,
.campus-markdown li,
.campus-markdown blockquote {
  font-size: clamp(15px, 1.8vw, 20px);
  color: var(--campus-soft);
}

.campus-markdown h1,
.campus-markdown h2,
.campus-markdown h3 {
  margin: 8px 0 2px;
  font-family: "Sora", "Noto Sans SC", sans-serif;
  color: var(--campus-text);
}

.campus-markdown ul,
.campus-markdown ol {
  margin: 0;
  padding-left: 22px;
  display: grid;
  gap: 6px;
}

.campus-markdown blockquote {
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid color-mix(in oklab, var(--campus-accent) 56%, transparent);
}

.campus-poster-wrap {
  margin-top: 4px;
}

.campus-poster {
  width: 100%;
  display: block;
  border-radius: 18px;
  object-fit: contain;
  box-shadow: 0 20px 38px rgba(7, 22, 58, 0.24);
}

.campus-poster-empty {
  margin-top: 8px;
}

.campus-confirm-btn,
.campus-floating-confirm {
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--campus-accent-strong), var(--campus-accent));
  color: #ffffff;
  font-family: "Sora", "Noto Sans SC", sans-serif;
  cursor: pointer;
}

.campus-confirm-btn {
  margin-top: 6px;
  width: fit-content;
  padding: 13px 18px;
  font-size: 16px;
}

.campus-floating-confirm {
  position: fixed;
  right: 20px;
  bottom: 18px;
  z-index: 26;
  padding: 12px 16px;
  box-shadow: 0 14px 28px rgba(19, 65, 146, 0.32);
}

.campus-offline {
  padding-top: 42px;
}

.reveal-section {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.campus-card-modal {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(5, 10, 26, 0.72);
  display: grid;
  place-items: center;
  padding: 12px;
}

.campus-card-modal[hidden] {
  display: none !important;
}

.campus-card-modal-dialog {
  width: min(780px, 100%);
  padding: 18px;
  border-radius: 18px;
  position: relative;
  background: color-mix(in oklab, var(--campus-surface-strong) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.campus-card-modal-close {
  position: absolute;
  right: 9px;
  top: 9px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 0;
  font-size: 24px;
  line-height: 1;
  color: var(--campus-text);
  background: var(--campus-surface);
  cursor: pointer;
}

.campus-card-modal-dialog h2 {
  margin: 0 42px 12px 0;
  font-family: "Sora", "Noto Sans SC", sans-serif;
  font-size: clamp(22px, 3vw, 32px);
}

.campus-card-qr-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.campus-card-qr-item {
  display: grid;
  gap: 10px;
}

.campus-card-qr-item h3 {
  margin: 0;
  font-size: 16px;
}

.campus-card-qr-box {
  min-height: 220px;
  display: grid;
  place-items: center;
  background: color-mix(in oklab, var(--campus-surface) 92%, transparent);
  border-radius: 14px;
}

.campus-card-qr-box img {
  width: min(220px, 100%);
  border-radius: 10px;
  display: block;
}

body.campus-card-modal-open {
  overflow: hidden;
}

@keyframes campusGridDrift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(38px);
  }
}

@keyframes campusGlowA {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(32px, -24px, 0) scale(1.06);
  }
}

@keyframes campusGlowB {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(-26px, 20px, 0) scale(0.95);
  }
}

@media (max-width: 980px) {
  .campus-card-topbar {
    left: 12px;
    right: 12px;
  }

  .campus-hero,
  .campus-section {
    padding-left: 24px;
    padding-right: 24px;
  }

  .campus-hero-inner {
    grid-template-columns: 1fr;
    gap: 16px;
    transform: translateY(-14px);
  }

  .campus-hero-side {
    justify-content: flex-start;
  }

  .campus-scroll-hint {
    left: 50%;
  }

  .campus-quick-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .campus-card-topbar {
    min-height: 52px;
    gap: 8px;
  }

  .campus-card-nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .campus-card-nav-panel {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    margin-left: 0;
    display: none;
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 12px;
    border-radius: 16px;
    background: color-mix(in oklab, var(--campus-surface-strong) 90%, transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }

  .campus-card-topbar.nav-open .campus-card-nav-panel {
    display: grid;
  }

  .campus-card-menu {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    justify-content: stretch;
  }

  .campus-card-menu a {
    border-radius: 12px;
    padding: 10px 12px;
    text-align: left;
  }

  .campus-card-right-tools {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .campus-card-theme-toggle {
    width: 100%;
    text-align: left;
  }

  .campus-card-right-tools .auth-slot {
    width: 100%;
    justify-content: flex-start;
  }

  .campus-card-right-tools .auth-link,
  .campus-card-right-tools button {
    width: 100%;
    text-align: left;
  }

  main {
    padding-right: 0;
    margin-top: -1px;
  }

  .campus-card-progress {
    right: 10px;
    top: auto;
    bottom: 14px;
    transform: none;
    display: inline-flex;
    gap: 8px;
    background: color-mix(in oklab, var(--campus-surface) 85%, transparent);
    border-radius: 999px;
    padding: 8px 10px;
  }

  .campus-card-progress::before,
  .campus-progress-label {
    display: none;
  }

  .campus-hero {
    min-height: calc(100svh - var(--campus-topbar-h, 72px));
    padding: 30px 24px 82px;
  }

  .campus-quick-facts,
  .campus-card-qr-grid {
    grid-template-columns: 1fr;
  }

  .campus-confirm-btn {
    width: 100%;
    text-align: center;
  }

  .campus-floating-confirm {
    right: 12px;
    bottom: 76px;
    padding: 11px 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .campus-card-grid,
  .campus-card-glow,
  .reveal-section {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}