/* =========================================================
   林晚舟 · 摄影作品集
   Dark gallery / editorial portfolio
   ========================================================= */

:root {
  --bg: #0a0a0b;
  --bg-elevated: #121213;
  --surface: #161616;
  --fg: #f2f0ea;
  --fg-muted: #9a9a94;
  --fg-dim: #6b6b66;
  --accent: #c4a574;
  --accent-soft: rgba(196, 165, 116, 0.16);
  --border: #2a2a28;
  --border-light: #3a3a38;
  --danger: #c45c5c;

  --font-display: "Cormorant Garamond", "Noto Serif SC", Georgia, "Songti SC", serif;
  --font-body: Inter, "Noto Serif SC", "PingFang SC", "Songti SC", system-ui, sans-serif;
  --font-serif-cn: "Noto Serif SC", "Songti SC", "SimSun", serif;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  --container: 1200px;
  --container-narrow: 720px;
  --radius: 0;
  --header-h: 72px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 280ms;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, p {
  margin: 0;
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 1000;
  background: var(--accent);
  color: var(--bg);
  padding: var(--space-3) var(--space-4);
}

.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

/* Layout */
.container {
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - 2.5rem, var(--container-narrow));
  margin-inline: auto;
}

.section {
  padding-block: var(--space-9);
}

.section--tight {
  padding-block: var(--space-7);
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.section-kicker {
  display: block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.section-link {
  font-size: 0.85rem;
  color: var(--fg-muted);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}

.section-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(10, 10, 11, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 44px;
}

.brand__mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__name {
  font-family: var(--font-serif-cn);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.brand__role {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.9rem;
  font-size: 0.88rem;
  color: var(--fg-muted);
  transition: color var(--dur) var(--ease-out);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0.9rem;
  right: 0.9rem;
  bottom: 12px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease-out);
}

.nav__link:hover,
.nav__link[aria-current="page"] {
  color: var(--fg);
}

.nav__link:hover::after,
.nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}

.nav-toggle__bars {
  display: block;
  width: 18px;
  height: 10px;
  position: relative;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--fg);
  transition: transform var(--dur) var(--ease-out), top var(--dur) var(--ease-out);
}

.nav-toggle__bars::before { top: 1px; }
.nav-toggle__bars::after { top: 8px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  top: 4.5px;
  transform: rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  top: 4.5px;
  transform: rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100dvh - var(--header-h));
  display: grid;
  align-items: end;
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
}

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

.hero__shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 10, 11, 0.25) 0%, rgba(10, 10, 11, 0.15) 40%, rgba(10, 10, 11, 0.92) 100%),
    linear-gradient(90deg, rgba(10, 10, 11, 0.55) 0%, transparent 55%);
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-block: var(--space-9) var(--space-8);
  max-width: 40rem;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-4);
}

.hero__eyebrow::before {
  content: "";
  width: 2rem;
  height: 1px;
  background: var(--accent);
}

.hero__title {
  font-family: var(--font-serif-cn);
  font-weight: 600;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.15;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-4);
}

.hero__lede {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 32rem;
  margin-bottom: var(--space-6);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 1.4rem;
  border: 1px solid var(--border-light);
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  transition:
    background var(--dur) var(--ease-out),
    color var(--dur) var(--ease-out),
    border-color var(--dur) var(--ease-out);
  cursor: pointer;
}

.btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--primary {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

.btn--primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

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

/* Page hero (inner pages) */
.page-hero {
  padding-block: var(--space-9) var(--space-7);
  border-bottom: 1px solid var(--border);
}

.page-hero__title {
  font-family: var(--font-serif-cn);
  font-weight: 600;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  letter-spacing: 0.06em;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.page-hero__text {
  max-width: 38rem;
  color: var(--fg-muted);
  font-size: 1.02rem;
}

/* Featured series cards */
.series-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.series-card {
  display: block;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  transition: border-color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}

.series-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.series-card__media {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--surface);
}

.series-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms var(--ease-out), opacity var(--dur) var(--ease-out);
}

.series-card:hover .series-card__media img {
  transform: scale(1.04);
}

.series-card__body {
  padding: var(--space-5);
}

.series-card__meta {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-2);
}

.series-card__title {
  font-family: var(--font-serif-cn);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
}

.series-card__desc {
  color: var(--fg-muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* Works masonry / editorial grid */
.works-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-4);
}

.work-item {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  display: block;
}

.work-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 800ms var(--ease-out);
}

.work-item:hover img {
  transform: scale(1.03);
}

.work-item__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--space-4);
  background: linear-gradient(transparent, rgba(10, 10, 11, 0.88));
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}

.work-item:hover .work-item__caption,
.work-item:focus-visible .work-item__caption {
  opacity: 1;
  transform: translateY(0);
}

.work-item__title {
  font-family: var(--font-serif-cn);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.work-item__meta {
  font-size: 0.78rem;
  color: var(--fg-muted);
  margin-top: 0.15rem;
}

.span-6 { grid-column: span 6; }
.span-4 { grid-column: span 4; }
.span-8 { grid-column: span 8; }
.span-3 { grid-column: span 3; }
.span-5 { grid-column: span 5; }
.span-7 { grid-column: span 7; }
.span-12 { grid-column: span 12; }

.ratio-landscape { aspect-ratio: 3 / 2; }
.ratio-portrait { aspect-ratio: 2 / 3; }
.ratio-square { aspect-ratio: 1 / 1; }
.ratio-wide { aspect-ratio: 16 / 9; }

/* Statement band */
.statement {
  border-block: 1px solid var(--border);
  background:
    radial-gradient(ellipse at 20% 0%, var(--accent-soft), transparent 55%),
    var(--bg-elevated);
}

.statement__quote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 400;
  line-height: 1.45;
  max-width: 40rem;
}

.statement__quote em {
  font-style: italic;
  color: var(--accent);
}

.statement__source {
  margin-top: var(--space-5);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

/* Exhibition list */
.exhibit-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border);
}

.exhibit-item {
  display: grid;
  grid-template-columns: 7rem 1fr auto;
  gap: var(--space-4);
  align-items: baseline;
  padding-block: var(--space-5);
  border-bottom: 1px solid var(--border);
}

.exhibit-item__year {
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.exhibit-item__title {
  font-family: var(--font-serif-cn);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.exhibit-item__place {
  color: var(--fg-muted);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.exhibit-item__tag {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-dim);
  white-space: nowrap;
}

/* About layout */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-7);
  align-items: start;
}

.about-prose p + p {
  margin-top: var(--space-4);
}

.about-prose p {
  color: var(--fg-muted);
}

.about-prose strong {
  color: var(--fg);
  font-weight: 500;
}

.about-meta {
  margin-top: var(--space-6);
  display: grid;
  gap: var(--space-4);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
}

.about-meta__row {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: var(--space-3);
  font-size: 0.92rem;
}

.about-meta__label {
  color: var(--fg-dim);
  letter-spacing: 0.08em;
}

.about-meta__value {
  color: var(--fg);
}

.about-figure {
  border: 1px solid var(--border);
  background: var(--surface);
}

.about-figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.about-figure figcaption {
  padding: var(--space-4);
  font-size: 0.85rem;
  color: var(--fg-dim);
  border-top: 1px solid var(--border);
}

/* Series page layout */
.series-intro {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-7);
  align-items: end;
  margin-bottom: var(--space-7);
}

.series-intro__text {
  color: var(--fg-muted);
  max-width: 36rem;
}

.series-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.series-meta__item dt {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: var(--space-2);
}

.series-meta__item dd {
  margin: 0;
  font-family: var(--font-serif-cn);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.photo-stack {
  display: grid;
  gap: var(--space-5);
}

.photo-block {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.photo-block img {
  width: 100%;
  display: block;
}

.photo-block__caption {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border);
}

.photo-block__title {
  font-family: var(--font-serif-cn);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.photo-block__note {
  color: var(--fg-dim);
  font-size: 0.88rem;
}

/* Exhibition feature */
.exhibit-feature {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-6);
  align-items: center;
  margin-bottom: var(--space-8);
}

.exhibit-feature__media {
  border: 1px solid var(--border);
  overflow: hidden;
}

.exhibit-feature__media img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.exhibit-feature__body p {
  color: var(--fg-muted);
  margin-top: var(--space-4);
}

/* Publication cards */
.pub-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.pub-card {
  padding: var(--space-5);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.pub-card__type {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

.pub-card__title {
  font-family: var(--font-serif-cn);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}

.pub-card__meta {
  color: var(--fg-muted);
  font-size: 0.9rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: var(--space-7) var(--space-6);
  margin-top: var(--space-8);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-7);
}

.site-footer__brand {
  max-width: 22rem;
}

.site-footer__brand p {
  margin-top: var(--space-3);
  color: var(--fg-muted);
  font-size: 0.92rem;
}

.footer-heading {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: var(--space-4);
}

.footer-links {
  display: grid;
  gap: 0.55rem;
}

.footer-links a {
  color: var(--fg-muted);
  font-size: 0.92rem;
  transition: color var(--dur) var(--ease-out);
}

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

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
  color: var(--fg-dim);
  font-size: 0.82rem;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 160ms; }
.reveal-delay-3 { transition-delay: 240ms; }

/* Mobile nav drawer */
@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    display: grid;
    gap: 0;
    padding: var(--space-3) var(--space-4) var(--space-5);
    background: rgba(10, 10, 11, 0.97);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--dur) var(--ease-out), opacity var(--dur) var(--ease-out);
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__link {
    min-height: 48px;
    padding: 0 0.25rem;
    border-bottom: 1px solid var(--border);
  }

  .nav__link::after {
    display: none;
  }

  .series-grid {
    grid-template-columns: 1fr;
  }

  .about-grid,
  .series-intro,
  .exhibit-feature,
  .site-footer__grid,
  .pub-grid {
    grid-template-columns: 1fr;
  }

  .works-grid {
    grid-template-columns: 1fr;
  }

  .span-3, .span-4, .span-5, .span-6, .span-7, .span-8, .span-12 {
    grid-column: span 1;
  }

  .exhibit-item {
    grid-template-columns: 4.5rem 1fr;
  }

  .exhibit-item__tag {
    grid-column: 2;
  }

  .series-meta {
    grid-template-columns: 1fr;
  }

  .hero__content {
    padding-block: var(--space-8) var(--space-7);
  }

  .section {
    padding-block: var(--space-8);
  }
}

@media (min-width: 901px) and (max-width: 1100px) {
  .series-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .span-3 { grid-column: span 6; }
  .span-4 { grid-column: span 6; }
  .span-5 { grid-column: span 6; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}