/* Infinity — Global Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #050508;
  --surface: #0c0d14;
  --surface2: #14151f;
  --border: #1c1d2e;
  --border-hover: #2e304a;
  --text: #f1f3f9;
  --text2: #8a8fa8;
  --text3: #555873;
  --accent1: #2563eb;
  --accent2: #2563eb;
  --accent3: #06b6d4;
  --gradient: linear-gradient(135deg, #2563eb, #06b6d4);
  --gradient-hover: linear-gradient(135deg, #3b82f6, #22d3ee);
  --gradient-soft: linear-gradient(135deg, rgba(37,99,235,0.15), rgba(6,182,212,0.1));
  --gradient-border: linear-gradient(135deg, rgba(37,99,235,0.3), rgba(6,182,212,0.3));
  --glow-purple: rgba(37,99,235,0.2);
  --glow-blue: rgba(37,99,235,0.2);
  --glow-cyan: rgba(6,182,212,0.15);
  --green: #22c55e;
  --red: #ef4444;
  --radius: 16px;
  --radius-sm: 12px;
}
html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; min-height: 100vh; }
a { color: var(--accent2); text-decoration: none; }
a:hover { color: var(--accent3); }
img { max-width: 100%; display: block; }
input, textarea, select, button { font-family: inherit; }

/* ─── Gradient Text ─── */
.grad-text { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ─── Typography ─── */
.t-hero { font-size: clamp(34px, 6vw, 60px); font-weight: 900; letter-spacing: -2.5px; line-height: 1.02; text-transform: uppercase; }
.t-heading { font-size: 28px; font-weight: 900; letter-spacing: -1px; text-transform: uppercase; }
.t-subheading { font-size: 20px; font-weight: 800; letter-spacing: -0.5px; }
.t-body { font-size: 15px; color: var(--text2); }
.t-small { font-size: 13px; color: var(--text2); }
.t-label { font-size: 11px; font-weight: 700; color: var(--text3); text-transform: uppercase; letter-spacing: 0.5px; }
.t-blue { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.t-green { color: var(--green); }

/* ─── Layout ─── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.container-sm { max-width: 560px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.page { padding: 40px 0 80px; }
.section { margin-bottom: 48px; }
.row { display: flex; align-items: center; gap: 12px; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ─── Nav ─── */
.nav { display: flex; align-items: center; gap: 12px; padding: 12px 20px; border-bottom: 1px solid var(--border); background: rgba(5,5,8,0.9); backdrop-filter: blur(24px) saturate(1.4); position: sticky; top: 0; z-index: 100; }
.nav-logo { font-size: 20px; font-weight: 900; letter-spacing: -1px; text-transform: uppercase; text-decoration: none; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; flex-shrink: 0; }
.nav-search-wrap { flex: 1; max-width: 320px; }
.nav-search-input { width: 100%; padding: 8px 16px; background: var(--surface2); border: 1.5px solid var(--border); border-radius: 99px; color: var(--text); font-size: 13px; outline: none; transition: all 0.25s; }
.nav-search-input:focus { border-color: var(--accent1); box-shadow: 0 0 0 3px rgba(37,99,235,0.12); }
.nav-search-input::placeholder { color: var(--text3); }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links a { color: var(--text2); font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: var(--radius-sm); transition: all 0.2s; }
.nav-links a:hover { color: var(--text); background: rgba(37,99,235,0.08); }
.nav-links a.active { color: var(--text); }
.nav-right { display: flex; align-items: center; gap: 6px; }
.nav-badge { background: var(--gradient); color: #fff; font-size: 10px; font-weight: 800; min-width: 18px; height: 18px; border-radius: 99px; display: inline-flex; align-items: center; justify-content: center; padding: 0 5px; margin-left: -6px; margin-top: -8px; }

/* ─── Buttons ─── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 24px; border-radius: var(--radius-sm); font-weight: 700; font-size: 14px; border: none; cursor: pointer; transition: all 0.25s; text-decoration: none; white-space: nowrap; position: relative; }
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 4px 20px var(--glow-purple), 0 2px 8px var(--glow-blue); }
.btn-primary:hover { background: var(--gradient-hover); transform: translateY(-2px); box-shadow: 0 8px 32px var(--glow-purple), 0 4px 16px var(--glow-blue); }
.btn-secondary { background: var(--surface2); color: var(--text); border: 1.5px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent1); box-shadow: 0 0 20px rgba(37,99,235,0.1); }
.btn-danger { background: rgba(239,68,68,0.12); color: var(--red); }
.btn-danger:hover { background: rgba(239,68,68,0.2); }
.btn-ghost { background: none; color: var(--text2); padding: 8px 12px; }
.btn-ghost:hover { color: var(--text); }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ─── Forms ─── */
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 12px; font-weight: 700; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.field input, .field textarea, .field select { width: 100%; padding: 12px 16px; background: var(--surface2); border: 1.5px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-size: 14px; outline: none; transition: all 0.25s; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--accent1); box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }
.field input::placeholder, .field textarea::placeholder { color: var(--text3); }
.field textarea { resize: vertical; min-height: 100px; }
.field .hint { font-size: 12px; color: var(--text3); margin-top: 6px; }
.field .error-msg { font-size: 12px; color: var(--red); margin-top: 6px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ─── Cards ─── */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: all 0.3s; position: relative; }
.card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.4), 0 0 30px var(--glow-purple); }
.card-img { width: 100%; aspect-ratio: 1; background: var(--surface2); display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; }
.card-img img { width: 100%; height: 100%; object-fit: cover; }
.card-img .no-img { font-size: 36px; opacity: 0.15; }
.card-body { padding: 14px 16px; }
.card-title { font-size: 15px; font-weight: 700; margin-bottom: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-sub { font-size: 12px; color: var(--text2); }
.card-price { font-size: 18px; font-weight: 900; margin-top: 4px; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }

/* ─── Shop Card ─── */
.shop-card { display: flex; align-items: center; gap: 16px; padding: 20px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); transition: all 0.3s; cursor: pointer; text-decoration: none; color: var(--text); }
.shop-card:hover { border-color: var(--border-hover); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,0,0,0.3), 0 0 24px var(--glow-purple); }
.shop-avatar { width: 56px; height: 56px; border-radius: 14px; background: var(--gradient-soft); display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 900; flex-shrink: 0; overflow: hidden; }
.shop-avatar img { width: 100%; height: 100%; object-fit: cover; }
.shop-info { flex: 1; min-width: 0; }
.shop-name { font-size: 16px; font-weight: 800; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.shop-desc { font-size: 13px; color: var(--text2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.shop-stats { display: flex; gap: 16px; margin-top: 4px; font-size: 12px; color: var(--text3); }
.shop-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; }

/* ─── Tabs / Sort ─── */
.tabs { display: flex; gap: 4px; margin-bottom: 24px; padding: 0 4px; }
.tab { padding: 8px 18px; border-radius: 99px; font-size: 13px; font-weight: 700; color: var(--text2); background: none; border: 1.5px solid transparent; cursor: pointer; transition: all 0.2s; }
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); background: var(--gradient-soft); border-color: rgba(37,99,235,0.3); }

.sort-bar { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; padding: 0 4px; }
.sort-bar select { padding: 8px 14px; background: var(--surface2); border: 1.5px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-size: 13px; font-weight: 600; outline: none; cursor: pointer; }

/* ─── Like Button ─── */
.like-btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: var(--radius-sm); background: var(--surface2); border: 1.5px solid var(--border); color: var(--text2); font-size: 13px; font-weight: 700; cursor: pointer; transition: all 0.2s; }
.like-btn:hover { border-color: var(--border-hover); color: var(--text); }
.like-btn.liked { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.3); color: var(--red); }

/* ─── Messages ─── */
.msg-layout { display: grid; grid-template-columns: 320px 1fr; height: calc(100vh - 53px); position: relative; z-index: 1; }
.msg-sidebar { border-right: 1px solid var(--border); overflow-y: auto; }
.msg-thread-item { display: flex; align-items: center; gap: 12px; padding: 16px; cursor: pointer; border-bottom: 1px solid var(--border); transition: background 0.15s; }
.msg-thread-item:hover, .msg-thread-item.active { background: var(--surface); }
.msg-thread-avatar { width: 40px; height: 40px; border-radius: 10px; background: var(--gradient-soft); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 16px; color: var(--accent1); flex-shrink: 0; }
.msg-thread-info { flex: 1; min-width: 0; }
.msg-thread-name { font-size: 14px; font-weight: 700; }
.msg-thread-preview { font-size: 12px; color: var(--text2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg-thread-meta { font-size: 11px; color: var(--text3); text-align: right; }
.msg-unread { width: 8px; height: 8px; border-radius: 50%; background: var(--gradient); flex-shrink: 0; }

.msg-main { display: flex; flex-direction: column; }
.msg-header { padding: 16px 20px; border-bottom: 1px solid var(--border); font-weight: 700; }
.msg-messages { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 8px; }
.msg-bubble { max-width: 70%; padding: 12px 16px; border-radius: 16px; font-size: 14px; line-height: 1.5; }
.msg-bubble.sent { background: var(--gradient); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.msg-bubble.received { background: var(--surface2); color: var(--text); align-self: flex-start; border-bottom-left-radius: 4px; border: 1px solid var(--border); }
.msg-bubble .msg-time { font-size: 10px; opacity: 0.6; margin-top: 4px; }
.msg-input-bar { display: flex; gap: 8px; padding: 16px 20px; border-top: 1px solid var(--border); }
.msg-input-bar input { flex: 1; padding: 12px 16px; background: var(--surface2); border: 1.5px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-size: 14px; outline: none; }
.msg-input-bar input:focus { border-color: var(--accent1); box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }
.msg-input-bar button { padding: 12px 20px; }
.msg-empty { flex: 1; display: flex; align-items: center; justify-content: center; color: var(--text3); font-size: 14px; }

/* ─── Image Upload ─── */
.img-upload-zone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 32px; text-align: center; cursor: pointer; transition: all 0.2s; }
.img-upload-zone:hover { border-color: var(--accent1); }
.img-upload-zone.dragover { border-color: var(--accent1); background: rgba(37,99,235,0.08); }
.img-preview-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 12px; }
.img-preview { position: relative; aspect-ratio: 1; border-radius: var(--radius-sm); overflow: hidden; background: var(--surface2); }
.img-preview img { width: 100%; height: 100%; object-fit: cover; }
.img-preview .img-remove { position: absolute; top: 4px; right: 4px; width: 24px; height: 24px; border-radius: 50%; background: rgba(0,0,0,0.7); color: #fff; border: none; font-size: 14px; cursor: pointer; display: flex; align-items: center; justify-content: center; }

/* ─── Image Gallery ─── */
.gallery { margin-bottom: 24px; }
.gallery-main { width: 100%; aspect-ratio: 1; border-radius: var(--radius); overflow: hidden; background: var(--surface2); margin-bottom: 8px; }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 8px; }
.gallery-thumb { width: 64px; height: 64px; border-radius: 8px; overflow: hidden; cursor: pointer; border: 2px solid transparent; opacity: 0.6; transition: all 0.2s; }
.gallery-thumb.active { border-color: var(--accent1); opacity: 1; }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }

/* ─── Badges ─── */
.badge { display: inline-flex; align-items: center; padding: 4px 12px; border-radius: 99px; font-size: 11px; font-weight: 700; }
.badge-blue { background: var(--gradient-soft); color: var(--accent3); border: 1px solid rgba(6,182,212,0.2); }
.badge-new { background: rgba(34,197,94,0.12); color: var(--green); border: 1px solid rgba(34,197,94,0.2); }

/* ─── Auth Card ─── */
.auth-wrap { display: flex; align-items: center; justify-content: center; min-height: calc(100vh - 53px); padding: 40px 24px; position: relative; z-index: 1; }
.auth-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 40px; width: 100%; max-width: 420px; box-shadow: 0 16px 64px rgba(0,0,0,0.4), 0 0 40px var(--glow-purple); }
.auth-card h1 { font-size: 24px; font-weight: 900; letter-spacing: -1px; text-transform: uppercase; margin-bottom: 8px; }
.auth-card .auth-sub { color: var(--text2); font-size: 14px; margin-bottom: 28px; }
.auth-card .auth-footer { text-align: center; margin-top: 24px; font-size: 14px; color: var(--text2); }
.auth-error { background: rgba(239,68,68,0.1); color: var(--red); padding: 10px 16px; border-radius: var(--radius-sm); font-size: 13px; font-weight: 600; margin-bottom: 16px; display: none; }

/* ─── Empty State ─── */
.empty { text-align: center; padding: 60px 20px; color: var(--text3); }
.empty-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.3; }
.empty h3 { color: var(--text2); font-size: 16px; font-weight: 700; margin-bottom: 8px; }

/* ─── Footer ─── */
.footer { text-align: center; padding: 40px 24px; color: var(--text3); font-size: 13px; border-top: 1px solid var(--border); margin-top: 60px; position: relative; z-index: 1; }
.footer strong { font-weight: 900; text-transform: uppercase; letter-spacing: -0.5px; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ─── Scroll Reveal Animation ─── */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.fade-out { opacity: 0; transform: translateY(-20px); }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .nav { padding: 10px 16px; gap: 8px; }
  .nav-logo { font-size: 17px; }
  .nav-links { display: none; }
  .nav-search-wrap { max-width: none; }
  .nav-search-input { padding: 7px 14px; font-size: 13px; }
  .container { padding: 0 16px; }
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
  .shop-grid { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .msg-layout { grid-template-columns: 1fr; }
  .msg-sidebar { display: none; }
  .msg-sidebar.show { display: block; position: fixed; inset: 53px 0 0; z-index: 50; background: var(--bg); }
  .t-hero { letter-spacing: -1px; }
  .auth-card { padding: 28px 20px; }
  .sort-bar { padding: 0; }
  .tabs { padding: 0; }
  .row-between { flex-wrap: wrap; }
}