/* ============================================================
   SG FINE ARTS - GALLERY STYLES
   Dark luxury theme with gold accents
   ============================================================ */

:root {
  --bg:        #080808;
  --bg2:       #121212;
  --bg3:       #1a1a1a;
  --gold:      #f0c040;
  --gold-lt:   #ffe080;
  --gold-dk:   #c9a84c;
  --text:      #ffffff;
  --text-mute: #b0a890;
  --border:    rgba(240,192,64,0.4);
  --shadow:    0 4px 30px rgba(0,0,0,0.8);
  --radius:    4px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.7;
  min-height: 100vh;
}

a { color: var(--gold); text-decoration: none; transition: color .2s; }
a:hover { color: var(--gold-lt); }

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

/* ---- HEADER ---- */
.site-header {
  background: linear-gradient(to bottom, #000 0%, rgba(0,0,0,0.92) 100%);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: .06em;
  background: linear-gradient(135deg, var(--gold), var(--gold-lt));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.site-nav a {
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #ddd;
  transition: color .2s;
}
.site-nav a:hover,
.site-nav a.active { color: var(--gold-lt); }

/* ---- LEGAL BANNER ---- */
.legal-banner {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 10px 24px;
  text-align: center;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .05em;
  color: #ccc;
}
.legal-banner a { color: var(--gold); font-size: inherit; font-weight: 700; }
.legal-banner a:hover { color: var(--gold-lt); }

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #000;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../img/hero-bg.jpg') center/cover no-repeat;
  opacity: .35;
  filter: blur(2px);
}
.hero-content {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 24px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: .04em;
  color: #fff;
  text-shadow: 0 2px 20px rgba(0,0,0,0.8);
}
.hero h1 em {
  font-style: normal;
  color: var(--gold-lt);
  font-weight: 700;
  text-shadow: 0 0 40px rgba(240,192,64,0.4);
}
.hero p {
  margin-top: 18px;
  font-size: 1.15rem;
  font-weight: 500;
  color: #eee;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- SECTION TITLE ---- */
.section-title {
  text-align: center;
  padding: 60px 24px 36px;
}
.section-title h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--gold-lt);
  text-shadow: 0 0 30px rgba(240,192,64,0.3);
}
.section-title .divider {
  width: 60px;
  height: 1px;
  background: var(--gold);
  margin: 14px auto 0;
  opacity: .6;
}

/* ---- PAGE TABS ---- */
.page-tabs {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-tab {
  padding: 7px 20px;
  border: 1px solid var(--border);
  border-radius: 2px;
  font-size: .82rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mute);
  cursor: pointer;
  transition: all .2s;
  background: transparent;
}
.page-tab:hover,
.page-tab.active {
  border-color: var(--gold);
  color: var(--gold-lt);
  background: rgba(201,168,76,.08);
}

/* ---- ARTWORK GRID ---- */
.gallery-grid {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px 80px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 32px;
}

.artwork-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s, box-shadow .3s, border-color .3s;
  cursor: pointer;
}
.artwork-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow), 0 0 20px rgba(201,168,76,.12);
  border-color: rgba(201,168,76,.5);
}

.card-image-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1/1;
  background: #111;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform .5s ease;
}
.artwork-card:hover .card-image-wrap img {
  transform: scale(1.03);
}
.card-sold-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0,0,0,.8);
  color: #ffd23b;
  font-size: .9rem;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: 7px 16px;
  border-radius: 3px;
  border: 1.5px solid #ffd23b;
  box-shadow: 0 0 16px rgba(255,210,59,.8);
  text-shadow: 0 0 8px rgba(255,210,59,.6);
}

.card-body {
  padding: 20px 20px 22px;
}
.card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  line-height: 1.3;
}
.card-desc {
  font-size: .92rem;
  font-weight: 500;
  color: #ccc;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-price {
  margin-top: 16px;
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--gold-lt);
  letter-spacing: .04em;
  text-shadow: 0 0 24px rgba(240,192,64,0.5);
  display: block;
}
.card-price.sold {
  color: #ffd23b;
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: .04em;
  text-shadow: 0 0 9px rgba(255,210,59,.55);
}

/* ---- ARTWORK DETAIL PAGE ---- */
.artwork-detail {
  max-width: 1300px;
  margin: 0 auto;
  padding: 48px 24px 80px;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 56px;
  align-items: start;
}

.artwork-image-section { position: relative; }

/* Magnifier */
.magnifier-wrap {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: crosshair;
  background: #111;
  line-height: 0;
}
.magnifier-wrap img {
  width: 100%;
  display: block;
  pointer-events: none;
}
.magnifier-lens {
  display: none;
  position: absolute;
  width: 300px;
  height: 300px;
  border: 3px solid var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 0 3px #000, 0 8px 40px rgba(0,0,0,.8);
  pointer-events: none;
  overflow: hidden;
  background-repeat: no-repeat;
  transform: translate(-50%, -50%);
  z-index: 10;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}
.magnifier-wrap:hover .magnifier-lens { display: block; }

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  font-size: .85rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mute);
  border: 1px solid var(--border);
  padding: 8px 18px;
  border-radius: 2px;
  transition: all .2s;
}
.back-btn:hover {
  color: var(--gold-lt);
  border-color: var(--gold);
}

.artwork-info h1 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 400;
  letter-spacing: .04em;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 20px;
}

.artwork-price-big {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold-lt);
  letter-spacing: .04em;
  margin-bottom: 28px;
}
.artwork-price-big.sold {
  color: #ffd23b;
  font-size: 1.5rem;
  font-weight: 900;
  text-shadow: 0 0 12px rgba(255,210,59,.6);
}

.artwork-desc {
  font-size: 1rem;
  line-height: 1.8;
  color: #c8c4b8;
  margin-bottom: 36px;
  white-space: pre-line;
}

.btn-buy {
  display: block;
  width: 100%;
  padding: 16px 24px;
  background: linear-gradient(135deg, var(--gold-dk), var(--gold));
  color: #000;
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  text-align: center;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all .25s;
}
.btn-buy:hover {
  background: linear-gradient(135deg, var(--gold), var(--gold-lt));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201,168,76,.35);
}
.btn-buy:disabled {
  background: #333;
  color: #666;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn-buy.sold {
  background: rgba(0,0,0,.65);
  color: #ffd23b;
  font-weight: 900;
  letter-spacing: .18em;
  border: 1.5px solid #ffd23b;
  cursor: not-allowed;
  transform: none;
  box-shadow: 0 0 18px rgba(255,210,59,.6);
  text-shadow: 0 0 8px rgba(255,210,59,.5);
}

.sold-notice {
  margin-top: 12px;
  text-align: center;
  font-size: .85rem;
  color: #888;
  letter-spacing: .06em;
}

/* ---- AI CHATBOT ---- */
.chatbot-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
}

.chat-toggle {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-dk), var(--gold));
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,.5);
  transition: transform .2s;
}
.chat-toggle:hover { transform: scale(1.08); }
.chat-toggle svg { width: 26px; height: 26px; fill: #000; }

.chat-box {
  display: none;
  position: absolute;
  bottom: 70px;
  right: 0;
  width: 360px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
  flex-direction: column;
}
.chat-box.open { display: flex; }

.chat-header {
  padding: 14px 18px;
  background: linear-gradient(135deg, #1a1500, #2a2000);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.chat-header .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #5c5;
  animation: pulse 1.5s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }
.chat-header span {
  font-size: .9rem;
  letter-spacing: .06em;
  color: var(--gold-lt);
  flex: 1;
}

.chat-messages {
  padding: 16px;
  height: 280px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.msg {
  max-width: 88%;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: .88rem;
  line-height: 1.55;
}
.msg.bot {
  background: rgba(201,168,76,.1);
  border: 1px solid rgba(201,168,76,.2);
  align-self: flex-start;
  color: #ddd;
}
.msg.user {
  background: rgba(201,168,76,.18);
  border: 1px solid rgba(201,168,76,.3);
  align-self: flex-end;
  color: #fff;
}
.msg.typing { opacity: .6; font-style: italic; }

.chat-input-row {
  display: flex;
  border-top: 1px solid var(--border);
}
.chat-input-row input {
  flex: 1;
  background: #111;
  border: none;
  outline: none;
  color: var(--text);
  padding: 12px 16px;
  font-family: inherit;
  font-size: .88rem;
}
.chat-input-row input::placeholder { color: var(--text-mute); }
.chat-send {
  padding: 0 18px;
  background: var(--gold-dk);
  border: none;
  color: #000;
  font-weight: 700;
  cursor: pointer;
  font-size: .85rem;
  letter-spacing: .06em;
  transition: background .2s;
}
.chat-send:hover { background: var(--gold); }

/* ---- TERMS PAGE ---- */
.terms-page {
  max-width: 860px;
  margin: 60px auto;
  padding: 0 24px 80px;
}
.terms-page h1 {
  font-size: 2rem;
  font-weight: 300;
  color: var(--gold-lt);
  margin-bottom: 8px;
  letter-spacing: .06em;
}
.terms-page .updated {
  font-size: .82rem;
  color: var(--text-mute);
  margin-bottom: 40px;
}
.terms-page h2 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--gold);
  margin: 36px 0 10px;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.terms-page p, .terms-page li {
  color: #bbb;
  font-size: .95rem;
  line-height: 1.8;
  margin-bottom: 10px;
}
.terms-page ul { padding-left: 20px; }

/* ---- ABOUT COLLECTION ---- */
.about-collection {
  background: #0d0d0d;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 64px 24px;
}
.about-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}
.about-heading {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--gold-lt);
  margin-bottom: 28px;
  text-transform: uppercase;
  text-shadow: 0 0 30px rgba(240,192,64,0.35);
}
.about-text {
  font-size: 1.05rem;
  font-weight: 500;
  color: #ddd;
  line-height: 1.85;
  margin-bottom: 18px;
  font-style: italic;
}
.about-text strong { color: #fff; font-style: normal; font-weight: 700; }
.about-details {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}
.about-detail-item {
  background: #141414;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 14px 22px;
  text-align: center;
  min-width: 200px;
}
.detail-label {
  display: block;
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 6px;
}
.detail-value {
  font-size: .96rem;
  color: #d8d2c0;
  line-height: 1.9;
}

/* ---- FOOTER ---- */
.site-footer {
  background: #050505;
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  text-align: center;
}
.site-footer p {
  font-size: .8rem;
  color: var(--text-mute);
  margin-bottom: 8px;
  letter-spacing: .04em;
}
.site-footer a { color: var(--gold-dk); font-size: inherit; }
.site-footer a:hover { color: var(--gold); }

/* ---- LOADER ---- */
.loader {
  display: flex;
  justify-content: center;
  padding: 60px;
}
.loader span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--gold);
  animation: bounce .8s infinite alternate;
  margin: 0 4px;
}
.loader span:nth-child(2) { animation-delay: .15s; }
.loader span:nth-child(3) { animation-delay: .3s; }
@keyframes bounce { from{transform:translateY(0);opacity:.4} to{transform:translateY(-14px);opacity:1} }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .artwork-detail {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
  }
  .chat-box { width: 300px; }
}

@media (max-width: 600px) {
  .header-inner { padding: 0 16px; }
  .site-nav { gap: 16px; }
  .gallery-grid { grid-template-columns: 1fr 1fr; gap: 14px; padding: 0 16px 60px; }
  .logo { font-size: 1.5rem; }
}