:root {
  --bg: #f7f4ec;
  --ink: #1c1a14;
  --muted: #6f6b5b;
  --accent: #cec18a;
  --border: #ede7d6;
  --field-border: #d9d3c1;
  --success: #1c6e43;
  --danger: #a43c3a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.4;
}

/* Lock screen */
.lock-screen {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #2b2618 0%, #1c1a14 100%);
  z-index: 100;
}
.lock-box {
  background: #fff;
  padding: 40px 36px;
  border-radius: 10px;
  width: 360px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.lock-box h1 { margin: 0 0 6px; font-size: 18px; }
.lock-box > p { margin: 0 0 22px; color: var(--muted); font-size: 13px; }
#lock-form label { display: block; margin-bottom: 14px; }
#lock-form span { display: block; font-size: 12px; font-weight: 600; margin-bottom: 5px; }
#lock-form input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--field-border);
  border-radius: 6px;
  font-size: 16px;
  letter-spacing: 3px;
  text-align: center;
  font-family: inherit;
}
#lock-form input:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(0,0,0,0.05); }
.btn-primary {
  width: 100%;
  padding: 12px 18px;
  background: var(--ink);
  color: #fff;
  border: none; border-radius: 6px;
  font-size: 14px; font-weight: 600;
  letter-spacing: 0.5px; text-transform: uppercase;
  cursor: pointer;
  font-family: inherit;
}
.btn-primary:hover { background: #000; }
.btn-secondary {
  padding: 8px 14px;
  background: #fff; color: var(--ink);
  border: 1px solid var(--field-border); border-radius: 6px;
  font-size: 13px; font-family: inherit; cursor: pointer;
}
.btn-secondary:hover { border-color: var(--ink); }
.lock-error {
  margin-top: 12px; color: var(--danger); font-size: 13px; text-align: center;
}

/* Top bar */
.top-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex; align-items: center; gap: 14px;
  position: sticky; top: 0; z-index: 50;
  flex-wrap: wrap;
}
.top-bar h1 { margin: 0; font-size: 18px; }
.top-bar__actions {
  margin-left: auto; display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
}
.top-bar input[type="text"], .top-bar select {
  padding: 8px 12px;
  border: 1px solid var(--field-border); border-radius: 6px;
  font-size: 13px; font-family: inherit; background: #fff;
}
.save-indicator {
  font-size: 12px; color: var(--success); font-weight: 600;
  opacity: 0; transition: opacity 0.3s;
}
.save-indicator.is-visible { opacity: 1; }

/* Section nav */
.section-nav {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 10px 24px;
  display: flex; gap: 20px;
  position: sticky; top: 58px; z-index: 49;
}
.section-nav a {
  color: var(--muted); font-size: 13px; text-decoration: none; font-weight: 600;
  letter-spacing: 0.3px;
}
.section-nav a:hover { color: var(--ink); }

/* Container */
.container {
  max-width: 1200px; margin: 24px auto; padding: 0 24px 80px;
}
.container h2 {
  margin: 32px 0 8px; font-size: 22px; font-family: Georgia, serif;
}
.container section:first-child h2 { margin-top: 0; }
.section-help {
  color: var(--muted); font-size: 13px; margin: 0 0 16px;
}

/* Fabric table */
.table-head, .fabric-row {
  display: grid;
  grid-template-columns: 120px 1.5fr repeat(4, 1fr);
  gap: 14px;
  align-items: center;
  padding: 12px 14px;
}
#shirts .table-head, #shirts .fabric-row {
  grid-template-columns: 120px 1.5fr 1fr;
}
.table-head {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px 8px 0 0;
  font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--muted);
  position: sticky; top: 109px; z-index: 48;
}
.fabric-list {
  list-style: none; margin: 0; padding: 0;
  border: 1px solid var(--border); border-top: none;
  border-radius: 0 0 8px 8px;
  background: #fff;
}
.fabric-row {
  border-bottom: 1px solid var(--border);
}
.fabric-row:last-child { border-bottom: none; }
.fabric-row.is-priced { background: #fbfaf5; }
.fabric-row.is-hidden { display: none; }
.fabric-row.is-unavailable {
  background: repeating-linear-gradient(45deg, #fafafa, #fafafa 10px, #f4f4f4 10px, #f4f4f4 20px);
}
.fabric-row.is-unavailable .fabric-info .input-title,
.fabric-row.is-unavailable .fabric-info .input-desc,
.fabric-row.is-unavailable .fabric-meta,
.fabric-row.is-unavailable .fabric-swatch {
  opacity: 0.5;
}
.fabric-row.is-unavailable .fabric-info .input-title {
  text-decoration: line-through;
}
.fabric-row.is-unavailable .price-field input {
  background: #f0ece0;
  color: #b8b1a1;
  cursor: not-allowed;
}

/* Not-available toggle */
.na-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--muted);
  cursor: pointer;
  margin-top: 4px;
  padding: 3px 8px 3px 4px;
  border-radius: 4px;
  align-self: flex-start;
  user-select: none;
  transition: background 0.15s;
}
.na-toggle:hover { background: #fff3f0; color: var(--danger); }
.na-toggle input[type="checkbox"] {
  margin: 0;
  accent-color: var(--danger);
  cursor: pointer;
}
.fabric-row.is-unavailable .na-toggle {
  background: #fff0ec;
  color: var(--danger);
  font-weight: 600;
  opacity: 1;
}

.fabric-swatch {
  width: 100px; height: 100px;
  border-radius: 6px; overflow: hidden;
  background: var(--bg);
  border: 1px solid var(--border);
}
.fabric-swatch img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}

.fabric-info {
  display: flex; flex-direction: column; gap: 4px; min-width: 0;
}
.fabric-info input[type="text"] {
  padding: 6px 10px; border: 1px solid transparent;
  border-radius: 4px; font-family: inherit; font-size: 14px;
  background: transparent; transition: border-color 0.15s, background 0.15s;
}
.fabric-info input[type="text"]:hover { border-color: var(--field-border); background: #fff; }
.fabric-info input[type="text"]:focus {
  outline: none; border-color: var(--ink); background: #fff;
  box-shadow: 0 0 0 3px rgba(0,0,0,0.04);
}
.fabric-info .input-title { font-size: 15px; font-weight: 600; }
.fabric-info .input-desc { font-size: 12px; color: var(--muted); }
.fabric-meta {
  font-size: 10px; color: var(--muted); letter-spacing: 0.5px;
  text-transform: uppercase; padding: 0 10px;
}
.fabric-meta span { margin-right: 8px; }
.fabric-meta .badge-new, .fabric-meta .badge-best {
  color: #fff; padding: 1px 6px; border-radius: 999px;
  font-weight: 700; font-size: 9px; letter-spacing: 0.3px;
}
.fabric-meta .badge-new { background: var(--success); }
.fabric-meta .badge-best { background: #a4793a; }

.price-field {
  position: relative;
}
.price-field input[type="number"] {
  width: 100%;
  padding: 10px 10px 10px 34px;
  border: 1px solid var(--field-border); border-radius: 6px;
  font-family: inherit; font-size: 14px; text-align: right;
  font-variant-numeric: tabular-nums;
}
.price-field input[type="number"]:focus {
  outline: none; border-color: var(--ink);
  box-shadow: 0 0 0 3px rgba(0,0,0,0.04);
}
.price-field::before {
  content: '฿';
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--muted); font-size: 13px; font-weight: 600;
  pointer-events: none;
}
.price-field input:placeholder-shown + .price-field__hint,
.price-field input[value=""] + .price-field__hint { display: inline; }

/* Extras */
#extras-list { display: flex; flex-direction: column; gap: 24px; }
.extras-group {
  background: #fff; border: 1px solid var(--border); border-radius: 8px;
  padding: 18px 22px;
}
.extras-group h3 {
  margin: 0 0 12px; font-size: 15px;
  text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--muted);
}
.extras-list {
  list-style: none; margin: 0; padding: 0;
}
.extras-list li {
  display: grid;
  grid-template-columns: 1.8fr 160px 160px;
  gap: 14px; align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.extras-list li:last-child { border-bottom: none; }
.extras-label { display: flex; flex-direction: column; }
.extras-label strong { font-size: 14px; }
.extras-label span.hint { font-size: 12px; color: var(--muted); }
.extras-unit {
  font-size: 11px; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.5px;
}

/* Summary */
#summary {
  background: #fff; border: 1px solid var(--border); border-radius: 8px;
  padding: 20px 24px; margin-top: 32px;
}
.muted { color: var(--muted); }

@media (max-width: 900px) {
  .table-head, .fabric-row {
    grid-template-columns: 80px 1fr;
    grid-auto-rows: auto;
  }
  .table-head span.th-price { display: none; }
  .fabric-row .price-field {
    grid-column: 1 / -1;
  }
  .fabric-swatch { width: 80px; height: 80px; }
  .extras-list li { grid-template-columns: 1fr; }
}

/* Clickable swatch */
.fabric-swatch { cursor: zoom-in; position: relative; }
.fabric-swatch:hover { box-shadow: 0 0 0 2px var(--ink); }
.fabric-swatch::after {
  content: '🔍';
  position: absolute; top: 4px; right: 4px;
  background: rgba(0,0,0,0.55); color: #fff;
  font-size: 10px; padding: 2px 5px; border-radius: 4px;
  opacity: 0; transition: opacity 0.15s;
  pointer-events: none;
}
.fabric-swatch:hover::after { opacity: 1; }

/* Lightbox */
.lightbox[hidden] { display: none !important; }
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.92);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 40px;
}
.lightbox__close {
  position: absolute; top: 16px; right: 24px;
  background: none; border: none;
  color: #fff; font-size: 40px; cursor: pointer; line-height: 1;
}
.lightbox__close:hover { color: var(--accent); }
.lightbox img {
  max-width: min(1200px, 94vw);
  max-height: 82vh;
  object-fit: contain;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  border-radius: 6px;
}
.lightbox__caption {
  color: #f0ead8; margin-top: 20px; font-size: 14px;
  text-align: center; max-width: 800px;
}

/* Toast */
.toast[hidden] { display: none !important; }
.toast {
  position: fixed; bottom: 32px; left: 50%;
  transform: translateX(-50%);
  background: var(--ink); color: #fff;
  padding: 14px 22px; border-radius: 8px;
  font-size: 14px; font-weight: 500;
  z-index: 150;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
  animation: toast-in 0.2s ease-out;
}
.toast.is-error { background: var(--danger); }
.toast.is-success { background: var(--success); }
@keyframes toast-in {
  from { transform: translateX(-50%) translateY(20px); opacity: 0; }
  to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

/* Cloud buttons */
.btn-cloud { padding: 8px 14px; font-size: 13px; }
.btn-cloud.btn-primary { width: auto; padding: 8px 16px; }