/* ===== CSS Variables (Light Theme) ===== */
:root {
  --bg: #f5f6f8;
  --bg2: #ffffff;
  --panel: #fafbfc;
  --panel2: #eef0f3;
  --border: #e2e5ea;
  --border-strong: #d3d7de;
  --text: #1f2430;
  --text2: #6b7280;
  --accent: #2563eb;
  --accent2: #3b82f6;
  --green: #16a34a;
  --green-bg: #dcfce7;
  --red: #dc2626;
  --red-bg: #fee2e2;
  --orange: #f59e0b;
  --orange-bg: #fef3c7;
  --blue: #3b82f6;
  --blue-bg: #dbeafe;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

/* ===== Topbar ===== */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.topbar-left { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 28px; }
.topbar h1 { font-size: 20px; margin: 0; letter-spacing: .3px; }
.topbar .sub { margin: 0; font-size: 13px; color: var(--text2); }
.topbar-nav {
  display: flex; gap: 4px; flex-wrap: wrap;
  background: var(--bg); padding: 6px; border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.nav-link {
  padding: 8px 14px; border-radius: var(--radius-sm); color: var(--text2);
  text-decoration: none; font-size: 14px; font-weight: 500; transition: all .15s;
}
.nav-link:hover { background: var(--panel); color: var(--text); }
.nav-link.active { background: var(--accent) !important; color: #fff; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.pill {
  padding: 6px 14px; border-radius: 999px;
  background: var(--green-bg); color: var(--green); font-size: 12px; font-weight: 600;
  border: 1px solid var(--green);
}

/* ===== Layout ===== */
.layout {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.layout-row {
  display: grid;
  gap: 24px;
}

/* ===== Panels ===== */
.panel {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.panel-head {
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px;
  flex-wrap: wrap; gap: 12px;
}
.panel-head h2 { margin: 0; font-size: 18px; }
.title-row { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.title-row h2 { margin: 0; font-size: 18px; }
.tag {
  font-size: 12px; color: var(--text2); background: var(--panel); padding: 4px 12px; border-radius: 999px;
}

/* ===== Stats ===== */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}
.stat-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 20px; box-shadow: var(--shadow);
}
.stat-card .num { font-size: 28px; font-weight: 700; color: var(--accent); }
.stat-card .lbl { font-size: 13px; color: var(--text2); margin-top: 4px; }

/* ===== Buttons ===== */
.btn {
  padding: 9px 16px; border: none; border-radius: var(--radius-sm);
  background: var(--accent); color: #fff; font-weight: 600; cursor: pointer; font-size: 14px;
  transition: background .15s, transform .1s;
}
.btn:hover { filter: brightness(1.1); }
.btn:active { transform: scale(.97); }
.btn.ghost { background: var(--panel); color: var(--text); border: 1px solid var(--border); }
.btn.ghost:hover { background: var(--panel2); }
.btn.danger { background: var(--red); }
.btn.danger:hover { filter: brightness(1.1); }
.btn.small { padding: 6px 12px; font-size: 13px; }
.btn.block { width: 100%; }

/* ===== Product / Library Grid ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
}
.card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow); transition: border-color .15s, transform .1s;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card .img-wrap { aspect-ratio: 1; border-radius: var(--radius-sm); overflow: hidden; background: var(--panel); display:flex; align-items:center; justify-content:center; }
.card .img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.card .img-wrap .placeholder { font-size: 40px; opacity: .6; }
.card .name { font-weight: 600; font-size: 16px; margin-top: 12px; }
.card .price { font-weight: 700; color: var(--green); font-size: 18px; margin-top: 6px; }
.card .meta { font-size: 13px; color: var(--text2); margin-top: 6px; }
.card .status { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 999px; text-transform: uppercase; letter-spacing: .3px; }
.status-available { background: var(--green-bg); color: var(--green); }
.status-coming { background: var(--blue-bg); color: var(--blue); }
.status-project { background: var(--orange-bg); color: var(--orange); }
.status-rupture { background: var(--red-bg); color: var(--red); }

/* ===== Filters ===== */
.filters {
  display: flex; gap: 8px; flex-wrap: wrap; align-items: center;
}
.filter-btn {
  padding: 6px 14px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg2); color: var(--text2); cursor: pointer; font-size: 13px; font-weight: 500; font-family: inherit;
}
.filter-btn:hover { border-color: var(--accent); }
.filter-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ===== Forms ===== */
.form-box {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow); max-width: 640px;
}
.form-box h3 { margin: 0 0 16px; font-size: 16px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; font-weight: 600; color: var(--text2); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 10px 12px; background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text); font-size: 14px; font-family: inherit;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* ===== Tabs ===== */
.tabs {
  display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; flex-wrap: wrap;
}
.tab {
  padding: 8px 16px; border: none; background: none; color: var(--text2); cursor: pointer;
  font-size: 14px; font-weight: 600; font-family: inherit; border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ===== Outfit builder ===== */
.asset-grid {
  display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}
.asset-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; cursor: pointer; transition: border-color .15s, transform .1s; position: relative;
}
.asset-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.asset-card.selected { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,.2); }
.asset-card .img-wrap { aspect-ratio: 1; border-radius: var(--radius-sm); overflow: hidden; background: var(--panel); }
.asset-card .img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.asset-card .name { font-weight: 600; font-size: 14px; margin-top: 10px; }
.asset-card .price { font-weight: 600; color: var(--green); font-size: 16px; }
.asset-card .btn-icon { position: absolute; top: 6px; right: 6px; width: 28px; height: 28px; border-radius: 50%; background: rgba(0,0,0,.6); color: #fff; border: none; font-size: 14px; cursor: pointer; }

/* ===== Outfit preview ===== */
.outfit-preview { position: relative; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; min-height: 400px; overflow:hidden; }
.outfit-preview .label { font-size: 13px; color: var(--text2); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.outfit-stage { display: flex; flex-direction: column; align-items: center; gap: 16px; padding: 20px; min-height: 500px; }
.top-layer { display: flex; align-items: center; gap: 16px; }
.top-layer .info { flex: 1; display: flex; flex-direction: column; gap: 8px; }
.top-layer .info .name { font-weight: 600; font-size: 16px; }
.top-layer .info .meta { font-size: 13px; color: var(--text2); }
.nav-row { display: flex; gap: 8px; align-items: center; }
.nav-btn {
  padding: 8px 18px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg2);
  color: var(--text); cursor: pointer; font-size: 14px; font-weight: 600; font-family: inherit;
}
.nav-btn:hover { background: var(--panel); border-color: var(--border-strong); }
.layers-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.layer-box {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px;
}
.layer-box .lbl { font-size: 12px; color: var(--text2); text-transform: uppercase; letter-spacing: .3px; margin-bottom: 6px; }
.layer-box .item-chip { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: var(--radius-sm); cursor: pointer; transition: background .1s; }
.layer-box .item-chip:hover { background: var(--panel); }
.layer-box .item-chip .img-wrap { width: 40px; height: 40px; border-radius: 6px; overflow: hidden; }
.layer-box .item-chip .img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.layer-box .item-chip .nm { font-size: 13px; font-weight: 500; }
.layer-box .item-chip .st { font-size: 11px; color: var(--green); font-weight: 600; }

/* ===== Photo upload ===== */
.photo-upload { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 20px; border: 2px dashed var(--border-strong); border-radius: var(--radius); cursor: pointer; text-align: center; }
.photo-upload:hover { border-color: var(--accent); background: var(--blue-bg); }
.photo-upload .ic { font-size: 48px; opacity: .6; }
.photo-upload .ti { font-weight: 600; font-size: 15px; }
.photo-upload .ds { font-size: 13px; color: var(--text2); }
.photo-placeholder { min-height: 200px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; }

/* ===== Toast ===== */
.toast-wrap {
  position: fixed; bottom: 24px; right: 24px; z-index: 999;
  display: flex; flex-direction: column; gap: 10px; pointer-events: none;
}
.toast {
  background: var(--text); color: #fff; padding: 12px 20px; border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg); font-size: 14px; font-weight: 500; animation: slideIn .3s ease;
}
.toast.out { animation: slideOut .3s ease; }
@keyframes slideIn { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slideOut { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(40px); } }

/* ===== Empty ===== */
.empty-state { text-align: center; padding: 40px 20px; color: var(--text2); }
.empty-state .ic { font-size: 48px; margin-bottom: 12px; }
.empty-state h3 { color: var(--text); margin-bottom: 6px; }
.empty-state p { font-size: 14px; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .layout { padding: 16px; }
  .topbar-nav { display: flex !important; gap: 4px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .form-box { padding: 16px; }
  .field input, .field select, .field textarea { font-size: 16px; } /* prevent iOS zoom */
  .photo-upload { padding: 16px; }
  .photo-upload .ic { font-size: 32px; }
  .layer-box { padding: 8px; }
  .layer-box .item-chip .img-wrap { width: 32px; height: 32px; }
}