/* Hallmark · macrostructure: full-viewport deck (inspired structure only)
 * theme: Cobalt · tone: technical · brand: 冷风
 */
.deck-html,
.deck-body {
  height: 100%;
  overflow: hidden;
}

.deck-body {
  background: var(--color-paper);
}

/* —— Top nav —— */
.deck-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) clamp(1rem, 4vw, 3rem);
  transition: background var(--dur) var(--ease-out), color var(--dur) var(--ease-out),
    border-color var(--dur) var(--ease-out);
  border-bottom: 1px solid transparent;
  pointer-events: none;
}

.deck-nav > * {
  pointer-events: auto;
}

.deck-nav .brand {
  color: inherit;
}

.deck-nav-links {
  display: none;
  align-items: center;
  gap: var(--space-1);
}

.deck-nav-links a,
.deck-nav-links button {
  appearance: none;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 560;
  color: inherit;
  opacity: 0.72;
  padding: var(--space-2) var(--space-3);
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.deck-nav-links a:hover,
.deck-nav-links button:hover,
.deck-nav-links .is-active {
  opacity: 1;
  background: color-mix(in oklch, currentColor 8%, transparent);
}

.deck-nav-cta {
  display: none;
  gap: var(--space-2);
  align-items: center;
}

.deck-nav[data-theme="light"] {
  color: var(--color-ink);
  background: color-mix(in oklch, var(--color-paper) 86%, transparent);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--color-line);
}

.deck-nav[data-theme="dark"] {
  color: #fff;
  background: color-mix(in oklch, var(--color-ink) 35%, transparent);
  backdrop-filter: blur(12px);
}

.deck-nav[data-theme="dark"] .btn-ghost {
  border-color: color-mix(in oklch, white 35%, transparent);
  color: #fff;
}

.deck-nav[data-theme="dark"] .btn-ghost:hover {
  border-color: #fff;
}

.deck-nav[data-theme="dark"] .btn-primary {
  background: #fff;
  color: var(--color-ink);
}

.deck-nav[data-theme="dark"] .nav-toggle {
  border-color: color-mix(in oklch, white 35%, transparent);
  background: transparent;
  color: #fff;
}

@media (min-width: 900px) {
  .deck-nav-links,
  .deck-nav-cta {
    display: flex;
  }
  .deck-nav .nav-toggle {
    display: none;
  }
}

.deck-drawer {
  position: fixed;
  top: 64px;
  left: var(--space-4);
  right: var(--space-4);
  z-index: 39;
  max-width: none;
  margin: 0;
}

.deck-drawer button {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  border-bottom: 1px solid var(--color-line);
  background: transparent;
  font: inherit;
  padding: var(--space-3) 0;
  cursor: pointer;
  color: var(--color-ink);
}

/* —— Side dots —— */
.deck-dots {
  position: fixed;
  right: clamp(0.75rem, 2vw, 1.5rem);
  top: 50%;
  transform: translateY(-50%);
  z-index: 35;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}

.deck-dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: color-mix(in oklch, var(--color-ink) 25%, transparent);
  cursor: pointer;
  transition: height var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
}

.deck-dots button.is-active {
  height: 28px;
  background: var(--color-accent);
}

.deck-dots[data-theme="dark"] button {
  background: color-mix(in oklch, white 35%, transparent);
}

.deck-dots[data-theme="dark"] button.is-active {
  background: var(--color-accent);
}

/* —— Deck scroll —— */
.deck {
  height: 100dvh;
  overflow-y: auto;
  overflow-x: clip;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  overscroll-behavior-y: contain;
}

.panel {
  min-height: 100dvh;
  height: 100dvh;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  align-items: center;
  box-sizing: border-box;
  padding: 5.5rem clamp(1rem, 4vw, 3.5rem) 4.5rem;
  padding-right: clamp(2.5rem, 5vw, 4rem);
  background: var(--color-paper);
  color: var(--color-ink);
}

.panel-dark {
  background:
    linear-gradient(160deg, oklch(18% 0.03 255) 0%, oklch(26% 0.04 250) 55%, oklch(20% 0.03 260) 100%);
  color: #fff;
}

.panel-ink {
  background: var(--color-ink);
  color: #fff;
}

.panel-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
  min-width: 0;
}

.panel-split {
  display: grid;
  gap: clamp(1.5rem, 3vw, 3rem);
  align-items: center;
}

@media (min-width: 900px) {
  .panel-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
  .panel-split.reverse .panel-copy {
    order: 2;
  }
  .panel-split.reverse .panel-media {
    order: 1;
  }
}

.panel-kicker {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.panel-dark .panel-kicker,
.panel-ink .panel-kicker {
  color: color-mix(in oklch, var(--color-accent) 70%, white);
}

.panel-copy h1,
.panel-copy h2 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: 1.08;
  font-style: normal;
  overflow-wrap: anywhere;
  min-width: 0;
}

.panel-copy h2 {
  font-size: var(--text-3xl);
}

.panel-lede {
  margin: 0 0 var(--space-6);
  font-size: var(--text-lg);
  line-height: 1.55;
  max-width: 34rem;
  color: var(--color-ink-soft);
}

.panel-dark .panel-lede,
.panel-ink .panel-lede {
  color: color-mix(in oklch, white 78%, transparent);
}

.panel-fine {
  margin: var(--space-6) 0 0;
  font-size: var(--text-xs);
  color: color-mix(in oklch, white 55%, transparent);
  font-family: var(--font-mono);
}

.panel-media {
  margin: 0;
  min-width: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-line);
  aspect-ratio: 16 / 10;
  background: var(--color-paper-2);
}

.panel-dark .panel-media,
.panel-ink .panel-media {
  border-color: color-mix(in oklch, white 14%, transparent);
}

.panel-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.btn-ghost-light {
  background: transparent;
  color: #fff;
  border: 1px solid color-mix(in oklch, white 35%, transparent);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.15rem;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 560;
  text-decoration: none;
}

.btn-ghost-light:hover {
  border-color: #fff;
  color: #fff;
}

.cap-list,
.tick-list {
  margin: 0 0 var(--space-6);
  padding: 0;
  list-style: none;
}

.cap-list li {
  display: grid;
  gap: 2px;
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-line);
}

.cap-list li:last-child {
  border-bottom: 1px solid var(--color-line);
}

.cap-list strong {
  font-family: var(--font-display);
  font-weight: 600;
}

.cap-list span {
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}

.tick-list li {
  position: relative;
  padding: 0.35rem 0 0.35rem 1.1rem;
  color: var(--color-ink-soft);
}

.panel-dark .tick-list li,
.panel-ink .tick-list li {
  color: color-mix(in oklch, white 78%, transparent);
}

.tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--color-accent);
}

/* contact */
.panel-contact {
  display: grid;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 860px) {
  .panel-contact {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.contact-dl {
  margin: 0 0 var(--space-6);
  display: grid;
  gap: var(--space-3);
}

.contact-dl > div {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: var(--space-3);
  font-size: var(--text-sm);
}

.contact-dl dt {
  margin: 0;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.contact-dl dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.contact-card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  background: var(--color-paper-2);
  min-width: 0;
}

.contact-card-label {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-card-url {
  margin: 0 0 var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 650;
  letter-spacing: -0.03em;
}

.contact-card-code {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.contact-card-note {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-muted);
}

/* —— Bottom ticker (Cobalt, not sport gradient) —— */
.deck-ticker {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  height: 36px;
  overflow: hidden;
  border-top: 1px solid color-mix(in oklch, var(--color-accent) 40%, var(--color-line));
  background: color-mix(in oklch, var(--color-ink) 92%, var(--color-accent));
  color: #fff;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
}

.deck-ticker-track {
  display: flex;
  gap: 3rem;
  white-space: nowrap;
  width: max-content;
  animation: ticker 28s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  .deck {
    scroll-behavior: auto;
  }
  .deck-ticker-track {
    animation: none;
  }
  .deck-html,
  .deck-body {
    overflow: auto;
    height: auto;
  }
  .deck {
    height: auto;
    overflow: visible;
    scroll-snap-type: none;
  }
  .panel {
    height: auto;
    min-height: 100dvh;
    scroll-snap-align: none;
  }
}

@keyframes ticker {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* mobile: still snap, tighter type */
@media (max-width: 699px) {
  .panel-copy h1 {
    font-size: clamp(1.85rem, 8vw, 2.4rem);
  }
  .panel {
    padding-top: 5rem;
    padding-bottom: 4rem;
  }
  .deck-dots {
    display: none;
  }
}