/* ===========================================================================
   AZSKIN — design tokens & base UI (Mockup Studio)
   Lấy theo nhận diện azskin.vn: vàng gold + đen, font Hanken Grotesk (kiểu dbrand).
   =========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --az-gold: #f7b500;
  --az-gold-2: #ffcf33;
  --az-gold-deep: #e0a200;
  --az-ink: #161616;
  --az-ink-2: #232323;
  --az-graphite: #2b2b2e;
  --az-muted: #8a8a8a;
  --az-line: #ececec;
  --az-bg: #f5f6fa;
  --az-white: #ffffff;
  --az-radius: 14px;
  --az-radius-sm: 9px;
  --az-shadow: 0 12px 34px rgba(20, 20, 20, .12);
  --az-shadow-sm: 0 4px 14px rgba(20, 20, 20, .08);
  --az-shadow-gold: 0 10px 28px rgba(247, 181, 0, .35);
  --font: 'Hanken Grotesk', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --ease: cubic-bezier(.4, 0, .2, 1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--az-ink-2);
  background: var(--az-bg);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ---------- Brand logo ---------- */
.az-logo { display: inline-flex; align-items: baseline; gap: 2px; font-weight: 900; letter-spacing: .5px; }
.az-logo b { color: var(--az-ink); font-size: 1.5rem; }
.az-logo .az-logo-az { color: var(--az-ink); }
.az-logo .az-logo-skin { color: var(--az-gold); }
.az-logo small { display: block; font-size: .52rem; letter-spacing: 3px; color: var(--az-muted); font-weight: 600; }

/* ---------- Buttons ---------- */
.az-btn {
  font-family: var(--font); font-weight: 700; font-size: .92rem;
  border: none; border-radius: var(--az-radius-sm); padding: 11px 20px;
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: transform .15s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), opacity .2s;
  white-space: nowrap;
}
.az-btn:active { transform: translateY(1px) scale(.99); }
.az-btn:disabled { opacity: .45; cursor: not-allowed; }
.az-btn-gold { background: linear-gradient(135deg, var(--az-gold) 0%, var(--az-gold-deep) 100%); color: #1b1b1b; box-shadow: var(--az-shadow-gold); }
.az-btn-gold:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(247,181,0,.5); }
.az-btn-dark { background: var(--az-ink); color: #fff; }
.az-btn-dark:hover:not(:disabled) { transform: translateY(-2px); box-shadow: var(--az-shadow); }
.az-btn-ghost { background: #fff; color: var(--az-ink-2); border: 1.5px solid var(--az-line); }
.az-btn-ghost:hover:not(:disabled) { border-color: var(--az-gold); color: var(--az-gold-deep); }
.az-btn-sm { padding: 7px 13px; font-size: .82rem; border-radius: 8px; }
.az-btn-lg { padding: 15px 30px; font-size: 1.05rem; border-radius: 12px; }
.az-btn-block { width: 100%; }

/* ---------- Cards ---------- */
.az-card { background: #fff; border-radius: var(--az-radius); box-shadow: var(--az-shadow-sm); border: 1px solid var(--az-line); }
.az-card-pad { padding: 16px; }

.az-chip { display: inline-flex; align-items: center; gap: 6px; font-size: .72rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; background: rgba(247,181,0,.16); color: var(--az-gold-deep); text-transform: uppercase; letter-spacing: .4px; }
.az-chip-dark { background: var(--az-ink); color: var(--az-gold-2); }

.az-price { color: var(--az-gold-deep); font-weight: 800; font-size: 1.7rem; }

/* ---------- Forms ---------- */
.az-input, .az-textarea, .az-select {
  width: 100%; font-family: var(--font); font-size: .92rem; color: var(--az-ink-2);
  border: 1.5px solid var(--az-line); border-radius: 9px; padding: 10px 12px; background: #fff;
  transition: border-color .15s, box-shadow .15s;
}
.az-input:focus, .az-textarea:focus, .az-select:focus { outline: none; border-color: var(--az-gold); box-shadow: 0 0 0 3px rgba(247,181,0,.18); }
.az-label { font-size: .8rem; font-weight: 700; color: var(--az-ink-2); margin-bottom: 5px; display: block; }
.az-help { font-size: .76rem; color: var(--az-muted); }

/* ---------- Slider ---------- */
input[type=range].az-range { -webkit-appearance: none; width: 100%; height: 5px; border-radius: 4px; background: var(--az-line); outline: none; }
input[type=range].az-range::-webkit-slider-thumb { -webkit-appearance: none; width: 17px; height: 17px; border-radius: 50%; background: var(--az-gold); cursor: pointer; box-shadow: 0 2px 6px rgba(247,181,0,.5); border: 2px solid #fff; }

/* ---------- Upload dropzone ---------- */
.az-drop {
  border: 2px dashed #d6d6d6; border-radius: var(--az-radius-sm); padding: 18px; text-align: center;
  cursor: pointer; color: var(--az-muted); transition: all .18s var(--ease); background: #fafafa;
}
.az-drop:hover, .az-drop.drag { border-color: var(--az-gold); background: rgba(247,181,0,.07); color: var(--az-gold-deep); }

/* ---------- Thumbs ---------- */
.az-thumb { border-radius: 10px; overflow: hidden; cursor: pointer; border: 2px solid transparent; transition: all .15s var(--ease); background: #fff; position: relative; }
.az-thumb:hover { transform: translateY(-2px); box-shadow: var(--az-shadow-sm); }
.az-thumb.active { border-color: var(--az-gold); box-shadow: var(--az-shadow-gold); }
.az-thumb img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 1; }

/* ---------- Canvas frame ---------- */
.az-stage { background:
   radial-gradient(circle at 30% 20%, #ffffff, #eef0f4 70%);
  border-radius: var(--az-radius); padding: 12px; display: inline-block; box-shadow: inset 0 0 0 1px var(--az-line); }
.az-stage canvas { border-radius: 8px; }

/* ---------- Spinner / loading ---------- */
@keyframes az-spin { to { transform: rotate(360deg); } }
.az-spinner { width: 38px; height: 38px; border: 4px solid rgba(247,181,0,.25); border-top-color: var(--az-gold); border-radius: 50%; animation: az-spin .8s linear infinite; }
@keyframes az-pulse { 0%,100% { opacity: .4; } 50% { opacity: 1; } }
@keyframes az-fadeup { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.az-fadeup { animation: az-fadeup .5s var(--ease) both; }

/* ---------- Utilities ---------- */
.az-row { display: flex; gap: 12px; }
.az-col { display: flex; flex-direction: column; }
.az-center { display: flex; align-items: center; justify-content: center; }
.az-grow { flex: 1; }
.az-muted { color: var(--az-muted); }
.az-hidden { display: none !important; }
.az-scroll { overflow-y: auto; }
.az-scroll::-webkit-scrollbar { width: 8px; }
.az-scroll::-webkit-scrollbar-thumb { background: #d9d9d9; border-radius: 8px; }

/* ---------- Toast ---------- */
.az-toast-wrap { position: fixed; top: 18px; left: 50%; transform: translateX(-50%); z-index: 9999; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.az-toast { background: var(--az-ink); color: #fff; padding: 11px 18px; border-radius: 10px; font-weight: 600; font-size: .88rem; box-shadow: var(--az-shadow); animation: az-fadeup .3s var(--ease) both; }
.az-toast.ok { background: linear-gradient(135deg, #1f9d55, #157a40); }
.az-toast.err { background: linear-gradient(135deg, #d33, #a82020); }
.az-toast.gold { background: linear-gradient(135deg, var(--az-gold), var(--az-gold-deep)); color: #1b1b1b; }