/* =========================================================
   Teesam — Visual Art Photographer
   Production stylesheet
   ========================================================= */

:root {
  --bg: #0a0a0a;
  --bg-elevated: #121212;
  --text: #f2f0ec;
  --text-muted: #9a968d;
  --text-faint: #656058;
  --accent: #c9a876;
  --border: #232323;
  --border-hover: #3a3a3a;
  --font-display: "Cormorant Garamond", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max-width: 1400px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #faf9f6;
    --bg-elevated: #ffffff;
    --text: #171512;
    --text-muted: #6b665c;
    --text-faint: #a39d8f;
    --border: #e6e2d9;
    --border-hover: #cfc9ba;
  }
}

:root[data-theme="light"] {
  --bg: #faf9f6;
  --bg-elevated: #ffffff;
  --text: #171512;
  --text-muted: #6b665c;
  --text-faint: #a39d8f;
  --border: #e6e2d9;
  --border-hover: #cfc9ba;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

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

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

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.brand span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  transition: color var(--transition);
  padding-bottom: 0.25rem;
  border-bottom: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.nav-toggle,
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  border-radius: 999px;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition), background var(--transition);
}

.theme-toggle:hover {
  border-color: var(--border-hover);
}

.nav-toggle {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

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

.hero {
  min-height: 88vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg) 30%, transparent) 0%, var(--bg) 92%);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.75rem, 7vw, 5.5rem);
  line-height: 1.05;
  margin: 0 0 1.5rem;
  max-width: 16ch;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 46ch;
  margin: 0 0 2.25rem;
}

.button-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 999px;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  border: 1px solid var(--border-hover);
}

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

.btn-primary:hover {
  transform: translateY(-2px);
}

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

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

/* ---------- Section scaffolding ---------- */

section {
  padding: clamp(4rem, 9vw, 7rem) 0;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1.5rem;
  margin-bottom: 2.75rem;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.75rem;
}

.section-heading h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0;
}

.section-heading .eyebrow {
  margin-bottom: 0.5rem;
}

.section-heading p {
  color: var(--text-muted);
  max-width: 45ch;
  margin: 0;
}

/* ---------- Collections grid ---------- */

.collections-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.collection-card {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 4px;
  aspect-ratio: 3 / 4;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

.collection-card .cc-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.collection-card:hover .cc-cover {
  transform: scale(1.06);
}

.collection-card .cc-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.5rem;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.82));
}

.cc-overlay .cc-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: #f2f0ec;
  margin: 0 0 0.25rem;
}

.cc-overlay .cc-count {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #d8d4c9;
  opacity: 0.85;
  margin: 0;
}

/* ---------- Projects index (gallery.html) ---------- */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: 2.5rem;
  row-gap: 3.5rem;
}

.project-entry {
  display: block;
}

.project-index {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.pi-num {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.pi-title {
  color: var(--text);
  text-wrap: balance;
}

.project-hero {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 3px;
  border: 1px solid var(--border);
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.project-entry:hover .project-hero {
  transform: scale(1.02);
}

.project-caption {
  max-width: 42ch;
  margin: 1rem 0 0.6rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.project-cta {
  margin: 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.project-cta span {
  display: inline-block;
  transition: transform var(--transition);
}

.project-entry:hover .project-cta span {
  transform: translateX(4px);
}

/* ---------- Collection detail header ---------- */

.collection-hero .back-link {
  display: inline-block;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  transition: color var(--transition);
}

.collection-hero .back-link:hover {
  color: var(--text);
}

.collection-hero .collection-description {
  max-width: 60ch;
  color: var(--text-muted);
  margin-top: 1rem;
  line-height: 1.7;
  white-space: pre-line;
}

.collection-description[hidden] {
  display: none;
}

/* ---------- Gallery grid ---------- */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  cursor: pointer;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  aspect-ratio: 4 / 5;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-item .item-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.25rem;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.75));
  color: #f2f0ec;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition);
}

.gallery-item:hover .item-caption {
  opacity: 1;
  transform: translateY(0);
}

.item-caption .cap-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 0.15rem;
}

.item-caption .cap-meta {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.75;
  margin: 0;
}

.gallery-empty {
  color: var(--text-muted);
  padding: 3rem 0;
  text-align: center;
}

/* ---------- Lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(6, 6, 6, 0.94);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox.open {
  display: flex;
}

.lightbox-inner {
  max-width: 1100px;
  width: 100%;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  align-items: center;
}

.lightbox-inner img {
  width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 2px;
}

.lightbox-info h3 {
  font-family: var(--font-display);
  font-size: 1.85rem;
  margin: 0 0 0.5rem;
  color: #f2f0ec;
}

.lightbox-info p {
  color: #b8b3a8;
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.lightbox-info .lb-desc {
  margin-top: 1rem;
  color: #d8d4c9;
  line-height: 1.7;
}

.lightbox-close,
.lightbox-nav {
  position: absolute;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #f2f0ec;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: background var(--transition);
}

.lightbox-close:hover,
.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.18);
}

.lightbox-close {
  top: 1.5rem;
  right: 1.5rem;
}

.lightbox-nav.prev {
  left: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-nav.next {
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
}

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

.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 4rem;
  align-items: center;
}

.about-media img {
  border-radius: 4px;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.about-body p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
}

.stats-row {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.stat .stat-num {
  font-family: var(--font-display);
  font-size: 2.25rem;
  color: var(--accent);
  display: block;
}

.stat .stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
}

/* ---------- Exhibitions ---------- */

.exhibitions-list {
  display: flex;
  flex-direction: column;
}

.exhibition-item {
  display: grid;
  grid-template-columns: 6rem 1fr auto;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
}

.exhibition-item .ex-year {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--accent);
}

.exhibition-item .ex-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin: 0 0 0.35rem;
}

.exhibition-item .ex-meta {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin: 0 0 0.5rem;
}

.exhibition-item .ex-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0;
  max-width: 60ch;
}

.exhibition-item .ex-type {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  white-space: nowrap;
  align-self: start;
}

@media (max-width: 700px) {
  .exhibition-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .exhibition-item .ex-type {
    justify-self: start;
  }
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info .info-row {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}

.contact-info .info-row .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  margin-bottom: 0.35rem;
}

.contact-info .info-row .value {
  font-size: 1.1rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.field label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

.field input,
.field textarea {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.85rem 1rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.field textarea {
  min-height: 140px;
  resize: vertical;
}

.form-note {
  font-size: 0.85rem;
  color: var(--text-faint);
}

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

.site-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: color var(--transition);
}

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

.copyright {
  color: var(--text-faint);
  font-size: 0.85rem;
}

/* ---------- Page header (non-home pages) ---------- */

.page-hero {
  padding: clamp(6rem, 12vw, 9rem) 0 clamp(2rem, 5vw, 3rem);
}

.page-hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin: 0 0 1rem;
}

.page-hero p {
  color: var(--text-muted);
  max-width: 50ch;
  font-size: 1.05rem;
}

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

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

[data-animate] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-animate].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .lightbox-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(78vw, 320px);
    background: var(--bg-elevated);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 1.75rem;
    padding: 2rem;
    transform: translateX(100%);
    transition: transform var(--transition);
    border-left: 1px solid var(--border);
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .collections-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    row-gap: 2.5rem;
  }
}