/* ==========================================================================
   皓仔的時空冒險 — Landing Page Styles
   ========================================================================== */

:root {
  --navy-950: #101a2e;
  --navy-900: #16233f;
  --navy-800: #1f3358;
  --navy-700: #2b4a7d;
  --gold-500: #e6b04a;
  --gold-400: #f4c869;
  --gold-100: #fdf0d5;
  --cream-50: #fdf8ee;
  --cream-100: #faf1dc;
  --red-600: #c0392b;
  --ink-900: #1a1a1a;
  --ink-600: #4a4a4a;
  --white: #ffffff;
  --text-on-dark: #ffffff;

  --font-body: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', sans-serif;

  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-soft: 0 12px 30px rgba(16, 26, 46, 0.12);
  --shadow-card: 0 8px 20px rgba(16, 26, 46, 0.10);
  --max-width: 1140px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --cream-50: #12192b;
    --cream-100: #182238;
    --ink-900: #f2ecdd;
    --ink-600: #cfc9ba;
    --white: #1b263f;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--cream-50);
  color: var(--ink-900);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

/* ---------- Scroll reveal ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

[data-reveal-group] > * {
  transition-delay: calc(var(--reveal-i, 0) * 90ms);
}

a {
  color: inherit;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 88px 0;
}

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--navy-700);
  background: var(--gold-100);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  color: var(--navy-900);
  margin: 0 0 12px;
}

.section-intro {
  max-width: 640px;
  color: var(--ink-600);
  font-size: 1.05rem;
  margin-bottom: 48px;
}

@media (prefers-color-scheme: dark) {
  .section-title { color: var(--gold-400); }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease, background 0.15s ease;
  white-space: nowrap;
  position: relative;
}

.btn:hover {
  transform: translateY(-3px) scale(1.02);
}

.btn:active {
  transform: translateY(-1px) scale(0.98);
}

.btn svg {
  width: 1.1em;
  height: 1.1em;
  flex-shrink: 0;
}

.btn-primary {
  background: var(--gold-500);
  color: var(--navy-950);
  box-shadow: 0 10px 24px rgba(230, 176, 74, 0.35);
}

.btn-primary:hover {
  background: var(--gold-400);
}

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.5);
  color: #ffffff;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-dark {
  background: var(--navy-900);
  color: var(--text-on-dark);
}

.btn-dark:hover {
  background: var(--navy-800);
}

.btn-donate {
  background: linear-gradient(135deg, var(--red-600), #e0684f);
  color: var(--text-on-dark);
  box-shadow: 0 10px 24px rgba(192, 57, 43, 0.3);
}

.btn-donate:hover {
  filter: brightness(1.08);
}

.btn-donate.is-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-gold-outline {
  background: rgba(230, 176, 74, 0.14);
  border-color: var(--gold-500);
  color: var(--navy-900);
  padding: 10px 22px;
  font-size: 0.92rem;
}

.btn-gold-outline:hover {
  background: rgba(230, 176, 74, 0.26);
}

@media (prefers-color-scheme: dark) {
  .btn-gold-outline { color: var(--gold-400); }
}

/* ---------- Navbar ---------- */

.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(253, 248, 238, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(16, 26, 46, 0.06);
}

@media (prefers-color-scheme: dark) {
  .navbar { background: rgba(18, 25, 43, 0.92); }
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--navy-900);
  text-decoration: none;
}

@media (prefers-color-scheme: dark) {
  .brand { color: var(--gold-400); }
}

.brand-emoji {
  font-size: 1.4rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-weight: 600;
  font-size: 0.95rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink-900);
  opacity: 0.8;
}

.nav-links a:hover {
  opacity: 1;
}

.nav-cta {
  display: none;
}

@media (min-width: 720px) {
  .nav-cta { display: inline-flex; }
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--navy-900);
  border-radius: 10px;
  transition: background 0.15s ease;
}

.nav-toggle:hover {
  background: rgba(16, 26, 46, 0.06);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

@media (prefers-color-scheme: dark) {
  .nav-toggle { color: var(--gold-400); }
  .nav-toggle:hover { background: rgba(244, 200, 105, 0.1); }
}

@media (max-width: 719px) {
  .nav-toggle { display: inline-flex; }

  .nav-links-desktop {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--cream-50);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 24px;
    box-shadow: var(--shadow-soft);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, opacity 0.25s ease;
  }

  .nav-links-desktop.nav-links-open {
    display: flex;
    max-height: 420px;
    opacity: 1;
  }

  .nav-links-desktop a {
    padding: 14px 4px;
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(16, 26, 46, 0.06);
    font-size: 1.02rem;
  }

  .nav-links-desktop .btn {
    margin-top: 10px;
    width: 100%;
    justify-content: center;
  }

  .nav-cta-mobile {
    display: flex !important;
  }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 15%, rgba(230, 176, 74, 0.16), transparent 45%),
    radial-gradient(circle at 30% 20%, var(--navy-800), var(--navy-950) 70%);
  color: var(--text-on-dark);
  padding: 64px 0 96px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 22%, rgba(255, 255, 255, 0.5), transparent),
    radial-gradient(1.5px 1.5px at 82% 68%, rgba(255, 255, 255, 0.4), transparent),
    radial-gradient(1px 1px at 45% 78%, rgba(255, 255, 255, 0.35), transparent),
    radial-gradient(1.5px 1.5px at 62% 12%, rgba(244, 200, 105, 0.5), transparent),
    radial-gradient(1px 1px at 90% 30%, rgba(255, 255, 255, 0.3), transparent),
    radial-gradient(1px 1px at 25% 55%, rgba(255, 255, 255, 0.3), transparent);
  opacity: 0.9;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 900px) {
  .hero .container {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.hero-eyebrow {
  position: relative;
  z-index: 1;
  display: inline-block;
  color: var(--gold-400);
  font-weight: 700;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  margin-bottom: 18px;
}

.hero h1 {
  position: relative;
  z-index: 1;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  font-weight: 900;
  line-height: 1.4;
  letter-spacing: 0.01em;
  margin: 0 0 20px;
}

.hero h1 span {
  color: var(--gold-400);
  text-shadow: 0 0 24px rgba(244, 200, 105, 0.45);
}

.hero-tagline {
  position: relative;
  z-index: 1;
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 520px;
  margin: 0 0 32px;
}

.hero-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-meta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 36px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

.hero-meta div {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-art {
  position: relative;
  z-index: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(230, 176, 74, 0.2);
  border: 4px solid rgba(230, 176, 74, 0.35);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease;
  animation: hero-float 6s ease-in-out infinite;
}

.hero-art:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(230, 176, 74, 0.35);
}

.hero-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@keyframes hero-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

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

/* ---------- Listen Now ---------- */

.listen {
  background: var(--cream-100);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.platform-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 20px;
  text-decoration: none;
  box-shadow: var(--shadow-card);
  border: 1px solid transparent;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease, border-color 0.2s ease;
}

.platform-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(230, 176, 74, 0.35);
}

.platform-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-on-dark);
  transition: transform 0.2s ease;
}

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

.platform-card:hover .platform-icon {
  transform: scale(1.1) rotate(-4deg);
}

.platform-card .platform-name {
  font-weight: 800;
  color: var(--navy-900);
  display: block;
}

.platform-card .platform-hint {
  font-size: 0.85rem;
  color: var(--ink-600);
}

@media (prefers-color-scheme: dark) {
  .platform-card .platform-name { color: var(--gold-400); }
}

/* ---------- About / Host ---------- */

.about .container {
  display: grid;
  gap: 48px;
  grid-template-columns: 1fr;
  align-items: center;
}

@media (min-width: 900px) {
  .about .container {
    grid-template-columns: 0.9fr 1.1fr;
  }
}

.about-art {
  align-self: center;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.about-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 5% center;
}

.about-art:hover {
  transform: translateY(-4px);
}

.about-quote {
  margin: 28px 0;
  padding: 20px 24px;
  border-left: 4px solid var(--gold-500);
  background: var(--gold-100);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-weight: 700;
  color: var(--navy-900);
}

@media (prefers-color-scheme: dark) {
  .about-quote { background: rgba(230, 176, 74, 0.12); color: var(--gold-400); }
}

.value-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 14px;
}

.value-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--ink-600);
}

.value-list li strong {
  color: var(--navy-900);
}

@media (prefers-color-scheme: dark) {
  .value-list li strong { color: var(--gold-400); }
}

.value-list .icon {
  font-size: 1.3rem;
}

/* ---------- Seasons ---------- */

.seasons {
  background: var(--navy-950);
  color: var(--text-on-dark);
}

.seasons .section-label {
  background: rgba(230, 176, 74, 0.15);
  color: var(--gold-400);
}

.seasons .section-title {
  color: var(--text-on-dark);
}

.seasons .section-intro {
  color: rgba(255, 255, 255, 0.7);
}

.season-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.season-card {
  display: block;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  text-decoration: none;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.25s ease, border-color 0.25s ease;
}

.season-card[href] {
  cursor: pointer;
}

.season-card:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(230, 176, 74, 0.3);
}

.season-card .season-num {
  font-size: 0.85rem;
  color: var(--gold-400);
  font-weight: 800;
  letter-spacing: 0.05em;
}

.season-card h3 {
  margin: 8px 0 10px;
  font-size: 1.2rem;
  color: var(--text-on-dark);
}

.season-card p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.92rem;
  margin: 0;
}

.status-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 999px;
}

.status-live {
  background: rgba(102, 187, 106, 0.2);
  color: #8be29a;
}

.status-soon {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

.status-airing {
  background: rgba(230, 176, 74, 0.2);
  color: var(--gold-400);
}

/* ---------- Episodes ---------- */

.episode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.episode-card {
  display: block;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-card);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease, border-color 0.25s ease;
}

.episode-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(230, 176, 74, 0.3);
}

.episode-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--navy-700);
  background: var(--gold-100);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.episode-card h4 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: var(--navy-900);
}

@media (prefers-color-scheme: dark) {
  .episode-card h4 { color: var(--gold-400); }
}

.episode-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-600);
}

.episodes-more {
  text-align: center;
  margin-top: 36px;
  color: var(--ink-600);
}

/* ---------- Parents ---------- */

.parents {
  background: var(--cream-100);
}

.parents .container {
  display: grid;
  gap: 40px;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .parents .container {
    grid-template-columns: 1fr 1fr;
  }
}

.parent-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.parent-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

.parent-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.parent-card .stars {
  color: var(--gold-500);
  margin-bottom: 12px;
}

.parent-card blockquote {
  margin: 0 0 16px;
  font-size: 1.05rem;
  color: var(--ink-900);
  font-style: normal;
}

.parent-card cite {
  font-style: normal;
  color: var(--ink-600);
  font-size: 0.9rem;
}

.quote-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (max-width: 480px) {
  .quote-grid { grid-template-columns: 1fr; }
}

.quote-chip {
  background: var(--gold-100);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.quote-chip:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.quote-chip p {
  margin: 0 0 8px;
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--navy-900);
}

.quote-chip span {
  font-size: 0.76rem;
  color: var(--ink-600);
  font-weight: 600;
}

@media (prefers-color-scheme: dark) {
  .quote-chip { background: rgba(230, 176, 74, 0.1); }
  .quote-chip p { color: var(--gold-400); }
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.checklist li {
  display: flex;
  gap: 10px;
  color: var(--ink-900);
  font-weight: 600;
}

/* ---------- Donate ---------- */

.donate {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--navy-900), var(--navy-950));
  color: var(--text-on-dark);
  text-align: center;
}

.donate::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(230, 176, 74, 0.16), transparent 60%);
  pointer-events: none;
}

.donate .container {
  position: relative;
  max-width: 720px;
}

.donate .section-title {
  color: var(--text-on-dark);
}

.donate p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--navy-950);
  color: rgba(255, 255, 255, 0.6);
  padding: 48px 0 32px;
  font-size: 0.9rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 20px;
}

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

.footer-links a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--gold-400);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- Utility ---------- */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

@media (max-width: 719px) {
  section { padding: 64px 0; }
}