/* ============================================
   Meiah — modern responsive template
   ============================================ */

:root {
  --color-bg: #0a0a0c;
  --color-bg-elevated: #121218;
  --color-bg-muted: #0f0f14;
  --color-surface: #16161e;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-text: #e8e6e3;
  --color-text-muted: #98949a;
  --color-accent: #d4a853;
  --color-accent-soft: rgba(212, 168, 83, 0.15);
  --color-accent-2: #c45c5c;
  --font-sans: "Outfit", "Noto Sans TC", system-ui, sans-serif;
  --font-zh: "Noto Sans TC", "Outfit", system-ui, sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --header-h: 72px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-soft: 0 24px 80px rgba(0, 0, 0, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  font-family: var(--font-zh);
  font-size: clamp(1rem, 0.95rem + 0.2vw, 1.0625rem);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--color-accent);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-sm);
  z-index: 1000;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: #111;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: top 0.2s var(--ease-out);
}

.skip-link:focus {
  top: var(--space-sm);
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.container {
  width: min(1120px, 100% - 2 * var(--space-md));
  margin-inline: auto;
}

/* ----- Header ----- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out),
    border-color 0.35s var(--ease-out);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(10, 10, 12, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--color-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  width: 100%;
}

.logo {
  display: flex;
  flex-direction: column;
  gap: 0;
  line-height: 1.1;
  z-index: 101;
}

.logo__mark {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.18em;
  color: var(--color-text);
}

.logo__sub {
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  z-index: 101;
  border-radius: var(--radius-sm);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  width: 22px;
  margin-inline: auto;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform 0.3s var(--ease-out), opacity 0.3s;
}

.site-header.nav-open .nav-toggle__bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.site-header.nav-open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.site-header.nav-open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__list a {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

.site-nav__list a:hover,
.site-nav__list a:focus-visible {
  color: var(--color-text);
}

.site-nav__cta {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  color: var(--color-text) !important;
  background: var(--color-surface);
}

.site-nav__cta:hover {
  border-color: var(--color-accent);
  color: var(--color-accent) !important;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    inset: 0;
    top: var(--header-h);
    background: rgba(10, 10, 12, 0.97);
    padding: var(--space-lg) var(--space-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.3s var(--ease-out), visibility 0.3s,
      transform 0.3s var(--ease-out);
  }

  .site-header.nav-open .site-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .site-nav__list a {
    font-size: 1.125rem;
  }
}

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

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  padding-bottom: var(--space-xl);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 55% at 70% 20%, rgba(212, 168, 83, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 15% 80%, rgba(196, 92, 92, 0.08), transparent 50%),
    linear-gradient(180deg, #0c0c10 0%, var(--color-bg) 45%, #08080a 100%);
  pointer-events: none;
}

.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.02) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(
    ellipse 90% 70% at 50% 40%,
    black 20%,
    transparent 70%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero__eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-md);
}

.hero__title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(2.25rem, 1.4rem + 3.5vw, 3.75rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-md);
}

.hero__title-accent {
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  margin: 0 0 var(--space-lg);
  color: var(--color-text-muted);
  max-width: 52ch;
  font-size: 1.05rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  opacity: 0.6;
}

@media (max-width: 768px) {
  .hero__scroll {
    display: none;
  }
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease-out), background 0.2s, border-color 0.2s,
    color 0.2s;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: linear-gradient(135deg, #e0b86a, var(--color-accent));
  color: #1a1208;
  border-color: transparent;
}

.btn--primary:hover {
  filter: brightness(1.08);
  color: #1a1208;
}

.btn--ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn--ghost:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

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

.btn--light:hover {
  filter: brightness(1.05);
  color: var(--color-bg);
}

/* ----- Sections ----- */

.section {
  padding-block: var(--space-2xl);
}

.section--muted {
  background: var(--color-bg-muted);
}

.section--stats {
  padding-block: var(--space-lg);
  border-block: 1px solid var(--color-border);
}

.section__title {
  font-family: var(--font-sans);
  font-size: clamp(1.75rem, 1.2rem + 2vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-xs);
}

.section__kicker {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section__intro {
  padding-right: var(--space-md);
}

.section-header {
  margin-bottom: var(--space-lg);
}

.section-header--row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-md);
}

.section__subtitle {
  margin: var(--space-xs) 0 0;
  color: var(--color-text-muted);
  font-size: 1rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-xl);
  align-items: start;
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

.prose p {
  margin: 0 0 var(--space-md);
  color: var(--color-text-muted);
}

.prose p:last-child {
  margin-bottom: 0;
}

/* ----- Stats ----- */

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  text-align: center;
}

@media (max-width: 600px) {
  .stats {
    grid-template-columns: 1fr;
    text-align: left;
    gap: var(--space-lg);
  }
}

.stat__value,
.stat__suffix {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.stat__suffix {
  font-size: 1.5rem;
  vertical-align: super;
  margin-left: 2px;
}

.stat__label {
  display: block;
  margin-top: var(--space-xs);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ----- Cards ----- */

.cards {
  display: grid;
  gap: var(--space-md);
}

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

@media (max-width: 900px) {
  .cards--3 {
    grid-template-columns: 1fr;
  }
}

.card {
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color 0.25s, transform 0.25s var(--ease-out);
}

.card:hover {
  border-color: rgba(212, 168, 83, 0.35);
  transform: translateY(-3px);
}

.card__icon {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.card__title {
  font-size: 1.125rem;
  margin: 0 0 var(--space-sm);
}

.card__text {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ----- Works ----- */

.text-link {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-accent);
  white-space: nowrap;
}

.text-link:hover {
  color: #e8c878;
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, minmax(200px, 1fr));
  gap: var(--space-sm);
}

.work-tile {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  min-height: 200px;
  border: 1px solid var(--color-border);
}

.work-tile--large {
  grid-column: span 2;
  grid-row: span 2;
  min-height: 280px;
}

@media (max-width: 900px) {
  .works-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
  }

  .work-tile--large {
    grid-column: span 2;
    grid-row: span 1;
    min-height: 240px;
  }
}

@media (max-width: 520px) {
  .works-grid {
    grid-template-columns: 1fr;
  }

  .work-tile--large {
    grid-column: span 1;
  }
}

.work-tile__media {
  position: absolute;
  inset: 0;
  /* Fallback without color-mix */
  background:
    radial-gradient(
      circle at 30% 22%,
      var(--tile-accent, #666) 0%,
      transparent 52%
    ),
    linear-gradient(165deg, #14141c 0%, #0a0a0c 100%);
}

@supports (background: color-mix(in srgb, red 50%, blue)) {
  .work-tile__media {
    background: linear-gradient(
        160deg,
        color-mix(in srgb, var(--tile-accent, #444) 55%, #0a0a0c) 0%,
        #0a0a0c 100%
      ),
      radial-gradient(circle at 30% 20%, var(--tile-accent, #666) 0%, transparent 55%);
  }
}

.work-tile__body {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-md);
  background: linear-gradient(transparent 40%, rgba(0, 0, 0, 0.75) 100%);
}

.work-tile__tag {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.work-tile__title {
  margin: 0;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.work-tile__meta {
  margin: 4px 0 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.work-tile__cta {
  display: inline-flex;
  align-items: center;
  margin-top: var(--space-sm);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.work-tile__cta:hover {
  color: #e8c878;
}

.work-tile--large .work-tile__cta {
  margin-top: var(--space-sm);
}

/* ----- Trailer (金多寶) ----- */

.trailer-block {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 900px) {
  .trailer-block {
    grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
    align-items: start;
    gap: var(--space-xl);
  }
}

.trailer-block__eyebrow {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-sm);
}

.trailer-block__title {
  font-family: var(--font-sans);
  font-size: clamp(1.35rem, 1.1rem + 1vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-md);
  line-height: 1.25;
}

.trailer-block__note {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.trailer-block__code {
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
  font-size: 0.8em;
  padding: 0.12em 0.4em;
  border-radius: 6px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.trailer-player {
  margin: 0;
  padding: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: #000;
  box-shadow: var(--shadow-soft);
}

.trailer-player__frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: radial-gradient(ellipse at center, #1a1814 0%, #000 70%);
}

.trailer-player__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  background: #000;
}

@supports not (aspect-ratio: 1) {
  .trailer-player__frame {
    height: 0;
    padding-bottom: 56.25%;
  }

  .trailer-player__video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }
}

.trailer-player__caption {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

/* ----- Tech band ----- */

.section--tech {
  position: relative;
  overflow: hidden;
  background: var(--color-bg-elevated);
  border-block: 1px solid var(--color-border);
}

.tech {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media (max-width: 900px) {
  .tech {
    grid-template-columns: 1fr;
  }
}

.tech__eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-sm);
}

.tech__title {
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 2rem + 3vw, 3.5rem);
  font-weight: 700;
  margin: 0 0 var(--space-md);
  letter-spacing: -0.03em;
}

.tech__en {
  font-size: 0.45em;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--color-text-muted);
  vertical-align: middle;
  margin-left: 0.25em;
}

.tech__lead {
  color: var(--color-text-muted);
  max-width: 42ch;
  margin: 0 0 var(--space-md);
}

.tech__list {
  margin: 0 0 var(--space-lg);
  padding-left: 1.2rem;
  color: var(--color-text-muted);
}

.tech__list li {
  margin-bottom: var(--space-xs);
}

.tech__visual {
  position: relative;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tech__orb {
  width: min(320px, 70vw);
  height: min(320px, 70vw);
  border-radius: 50%;
  background: radial-gradient(
    circle at 35% 35%,
    rgba(212, 168, 83, 0.35),
    transparent 55%
  ),
    radial-gradient(circle at 70% 60%, rgba(100, 80, 200, 0.2), transparent 50%);
  filter: blur(0px);
  animation: orb-pulse 8s ease-in-out infinite;
}

@keyframes orb-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.9;
  }
}

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

.tech__grid-lines {
  position: absolute;
  inset: 10%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(
      rgba(255, 255, 255, 0.03) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

/* ----- News ----- */

.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.news-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.news-item:first-child {
  padding-top: 0;
}

@media (max-width: 520px) {
  .news-item {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }
}

.news-item__date {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.news-item__title {
  margin: 0 0 var(--space-xs);
  font-size: 1.1rem;
  line-height: 1.35;
}

.news-item__excerpt {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ----- CTA ----- */

.cta-band {
  padding-block: var(--space-xl);
  background: linear-gradient(135deg, #1a1510 0%, #12101c 50%, #0f1418 100%);
  border-block: 1px solid var(--color-border);
}

.cta-band__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.cta-band__title {
  font-family: var(--font-sans);
  font-size: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
  margin: 0 0 var(--space-xs);
}

.cta-band__text {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 42ch;
}

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

.site-footer {
  padding: var(--space-xl) 0 var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.footer__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-lg);
}

.footer__brand {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.12em;
  margin: 0 0 var(--space-sm);
}

.footer__copy {
  margin: 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  max-width: 360px;
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: flex-start;
}

.footer__nav a {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.footer__nav a:hover {
  color: var(--color-accent);
}