:root {
  --ink: #0f1117;
  --ink-2: #3a3d4a;
  --ink-3: #7b7f8e;
  --ink-4: #b8bbc6;
  --surface: #f7f8fc;
  --surface-2: #eef0f7;
  --white: #ffffff;
  --blue: #2563eb;
  --blue-soft: #eff4ff;
  --blue-mid: #93b4fa;
  --green: #059669;
  --green-soft: #ecfdf5;
  --red: #dc2626;
  --red-soft: #fef2f2;
  --amber: #d97706;
  --amber-soft: #fffbeb;
  --border: #e2e5f0;
  --border-strong: #c8ccd8;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.06);
  --font: 'Sarabun', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}

.admin-page { background: var(--surface); min-height: 100vh; padding: 28px; }

/* ── PAGE HEADER ── */
.page-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 24px;
}
.page-title { font-size: 22px; font-weight: 700; color: var(--ink); letter-spacing: -0.4px; }
.page-subtitle { font-size: 13px; color: var(--ink-3); margin-top: 2px; }

/* ── STAT CARDS ── */
.stats-row {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 14px; margin-bottom: 24px;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  display: flex; align-items: center; gap: 14px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}
.stat-card:hover { box-shadow: var(--shadow); }
.stat-icon {
  width: 42px; height: 42px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; flex-shrink: 0;
}
.stat-icon.blue { background: var(--blue-soft); color: var(--blue); }
.stat-icon.green { background: var(--green-soft); color: var(--green); }
.stat-icon.amber { background: var(--amber-soft); color: var(--amber); }
.stat-icon.red { background: var(--red-soft); color: var(--red); }
.stat-value { font-size: 22px; font-weight: 700; color: var(--ink); line-height: 1; font-family: var(--mono); }
.stat-label { font-size: 12px; color: var(--ink-3); margin-top: 3px; }

/* ── TOOLBAR ── */
.toolbar {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}
.search-wrap {
  position: relative; flex: 1; min-width: 200px;
}
.search-wrap i {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--ink-4); font-size: 13px; pointer-events: none;
}
.input-base {
  width: 100%; height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 12px 0 36px;
  font-family: var(--font); font-size: 14px;
  color: var(--ink); background: var(--white);
  outline: none; transition: border-color 0.15s, box-shadow 0.15s;
}
.input-base:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.select-base {
  height: 38px; padding: 0 32px 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font); font-size: 14px;
  color: var(--ink); background: var(--white);
  outline: none; cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%237b7f8e' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
  transition: border-color 0.15s;
}
.select-base:focus { border-color: var(--blue); }
.btn {
  height: 38px; padding: 0 16px;
  border-radius: var(--radius);
  font-family: var(--font); font-size: 14px; font-weight: 500;
  cursor: pointer; border: none; outline: none;
  display: inline-flex; align-items: center; gap: 7px;
  transition: all 0.15s; white-space: nowrap;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #1d4ed8; }
.btn-ghost { background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--surface); border-color: var(--border-strong); }
.btn-success { background: var(--green); color: #fff; }
.btn-success:hover { background: #047857; }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-icon {
  width: 32px; height: 32px; padding: 0;
  border-radius: 7px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 13px; cursor: pointer; border: none;
  transition: all 0.15s;
}
.btn-icon.edit { background: var(--blue-soft); color: var(--blue); }
.btn-icon.edit:hover { background: #dbeafe; }
.btn-icon.img { background: var(--green-soft); color: var(--green); }
.btn-icon.img:hover { background: #d1fae5; }
.btn-icon.del { background: var(--red-soft); color: var(--red); }
.btn-icon.del:hover { background: #fee2e2; }
.toolbar-divider { width: 1px; height: 28px; background: var(--border); flex-shrink: 0; }

/* ── CATEGORY CHIPS ── */
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.chip {
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px; font-weight: 500;
  border: 1px solid var(--border);
  background: var(--white); color: var(--ink-2);
  cursor: pointer; transition: all 0.15s;
  display: flex; align-items: center; gap: 6px;
}
.chip:hover { border-color: var(--blue-mid); color: var(--blue); background: var(--blue-soft); }
.chip.active { background: var(--blue); color: #fff; border-color: var(--blue); }
.chip-count {
  font-size: 11px; font-family: var(--mono);
  background: rgba(0,0,0,0.1); border-radius: 10px;
  padding: 0 6px; line-height: 18px;
}
.chip.active .chip-count { background: rgba(255,255,255,0.25); }

/* ── TABLE ── */
.table-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead { background: var(--surface); border-bottom: 1px solid var(--border); }
th {
  padding: 10px 16px;
  text-align: left;
  font-size: 11px; font-weight: 600; letter-spacing: 0.05em;
  color: var(--ink-3); text-transform: uppercase;
  white-space: nowrap;
}
th:last-child { text-align: center; }
td { padding: 12px 16px; vertical-align: middle; }
tr { border-bottom: 1px solid var(--border); transition: background 0.1s; }
tr:last-child { border-bottom: none; }
tbody tr:hover { background: #fafbff; }

.product-img {
  width: 52px; height: 52px; border-radius: 8px; object-fit: cover;
  border: 1px solid var(--border);
}
.product-img-placeholder {
  width: 52px; height: 52px; border-radius: 8px;
  background: var(--surface-2); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-4); font-size: 18px;
}
.product-name { font-weight: 600; font-size: 14px; color: var(--ink); line-height: 1.3; }
.product-name-en { font-size: 12px; color: var(--ink-3); margin-top: 1px; }

.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 9px; border-radius: 6px;
  font-size: 12px; font-weight: 500; white-space: nowrap;
}
.badge-blue { background: var(--blue-soft); color: var(--blue); }
.badge-green { background: var(--green-soft); color: var(--green); }
.badge-red { background: var(--red-soft); color: var(--red); }
.badge-amber { background: var(--amber-soft); color: var(--amber); }

.price-text {
  font-family: var(--mono); font-size: 14px; font-weight: 500;
  color: var(--ink);
}
.price-unit { font-size: 11px; color: var(--ink-4); font-family: var(--font); }

.stock-low { color: var(--red); font-weight: 600; }
.stock-ok { color: var(--green); font-weight: 500; }

.actions-cell { display: flex; align-items: center; gap: 6px; justify-content: center; }

/* ── TABLE FOOTER ── */
.table-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-top: 1px solid var(--border);
  background: var(--surface);
}
.table-info { font-size: 13px; color: var(--ink-3); }
.pagination { display: flex; align-items: center; gap: 4px; }
.page-btn {
  min-width: 32px; height: 32px; padding: 0 8px;
  border-radius: 7px; border: 1px solid var(--border);
  background: var(--white); color: var(--ink-2);
  font-size: 13px; cursor: pointer; font-family: var(--font);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
}
.page-btn:hover:not(:disabled) { border-color: var(--blue); color: var(--blue); background: var(--blue-soft); }
.page-btn.active { background: var(--blue); border-color: var(--blue); color: #fff; }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── EMPTY STATE ── */
.empty-state {
  padding: 60px 20px; text-align: center; color: var(--ink-3);
}
.empty-icon {
  width: 64px; height: 64px; border-radius: 16px;
  background: var(--surface-2); margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; color: var(--ink-4);
}
.empty-title { font-size: 16px; font-weight: 600; color: var(--ink-2); margin-bottom: 6px; }
.empty-sub { font-size: 13px; }

/* ── MODAL ── */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(15,17,23,0.55);
  backdrop-filter: blur(4px);
  z-index: 200;
  align-items: flex-start; justify-content: center;
  padding: 40px 20px; overflow-y: auto;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%; max-width: 580px;
  animation: slideIn 0.2s ease;
  position: relative;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-title { font-size: 17px; font-weight: 700; color: var(--ink); }
.modal-close {
  width: 32px; height: 32px; border-radius: 7px;
  background: var(--surface-2); border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-3); transition: all 0.15s;
}
.modal-close:hover { background: var(--red-soft); color: var(--red); }
.modal-body { padding: 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex; gap: 10px; justify-content: flex-end;
}

/* ── FORM ── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-col-2 { grid-column: 1 / -1; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-label {
  font-size: 13px; font-weight: 500; color: var(--ink-2);
  display: flex; align-items: center; gap: 4px;
}
.form-label .req { color: var(--red); font-size: 12px; }
.form-input {
  height: 38px; padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font); font-size: 14px; color: var(--ink);
  background: var(--white); outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
}
.form-input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.form-textarea {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font); font-size: 14px; color: var(--ink);
  background: var(--white); outline: none; resize: vertical;
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
}
.form-textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.form-textarea.mono { font-family: var(--mono); font-size: 13px; }
.form-select {
  height: 38px; padding: 0 32px 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font); font-size: 14px; color: var(--ink);
  background: var(--white); outline: none; appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%237b7f8e' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
  transition: border-color 0.15s;
  width: 100%;
}
.form-select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.form-hint { font-size: 12px; color: var(--ink-4); }
.form-divider {
  grid-column: 1 / -1;
  border: none; border-top: 1px solid var(--border);
  margin: 4px 0;
}
.price-group {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px;
}
.price-input-wrap { position: relative; }
.price-input-wrap .currency {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  font-size: 13px; color: var(--ink-4); pointer-events: none;
}
.price-input-wrap .form-input { padding-left: 26px; }
.toggle-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  grid-column: 1 / -1;
}
.toggle-label { font-size: 14px; font-weight: 500; color: var(--ink); }
.toggle-sub { font-size: 12px; color: var(--ink-3); }
.toggle {
  position: relative; width: 42px; height: 24px;
  cursor: pointer; flex-shrink: 0;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: var(--border-strong); border-radius: 24px;
  transition: background 0.2s;
}
.toggle-slider:before {
  content: ''; position: absolute;
  width: 18px; height: 18px; border-radius: 50%;
  left: 3px; top: 3px; background: #fff;
  transition: transform 0.2s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.toggle input:checked + .toggle-slider { background: var(--blue); }
.toggle input:checked + .toggle-slider:before { transform: translateX(18px); }

/* ── SPECS BUILDER ── */
.specs-builder { display: flex; flex-direction: column; gap: 8px; }
.spec-row {
  display: grid; grid-template-columns: 1fr 1fr auto;
  gap: 8px; align-items: center;
}
.spec-key, .spec-val {
  height: 36px; padding: 0 10px;
  border: 1px solid var(--border); border-radius: 8px;
  font-family: var(--font); font-size: 13px; color: var(--ink);
  background: var(--white); outline: none; width: 100%;
  transition: border-color 0.15s;
}
.spec-key:focus, .spec-val:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,0.08); }
.spec-key { color: var(--ink-2); }
.spec-del {
  width: 30px; height: 30px; border-radius: 7px;
  background: none; border: 1px solid var(--border);
  color: var(--ink-4); cursor: pointer; font-size: 12px;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s; flex-shrink: 0;
}
.spec-del:hover { background: var(--red-soft); border-color: var(--red); color: var(--red); }
.specs-header {
  display: grid; grid-template-columns: 1fr 1fr auto;
  gap: 8px; padding: 0 2px; margin-bottom: 2px;
}
.specs-header span { font-size: 11px; font-weight: 600; color: var(--ink-4); text-transform: uppercase; letter-spacing: 0.05em; }
.specs-add-btn {
  margin-top: 8px; height: 34px; padding: 0 14px;
  border: 1px dashed var(--border-strong); border-radius: 8px;
  background: none; cursor: pointer; font-family: var(--font);
  font-size: 13px; color: var(--ink-3);
  display: inline-flex; align-items: center; gap: 6px;
  transition: all 0.15s; width: 100%; justify-content: center;
}
.specs-add-btn:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-soft); }
.specs-empty {
  padding: 16px; text-align: center;
  border: 1px dashed var(--border); border-radius: 8px;
  font-size: 13px; color: var(--ink-4);
}

/* ── ALBUM SECTION ── */
.section-divider {
  grid-column: 1 / -1;
  display: flex; align-items: center; gap: 12px;
  margin: 8px 0 4px;
}
.section-divider-label {
  font-size: 12px; font-weight: 600; color: var(--ink-3);
  text-transform: uppercase; letter-spacing: 0.07em;
  white-space: nowrap;
}
.section-divider-line { flex: 1; height: 1px; background: var(--border); }

.album-grid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.album-thumb {
  aspect-ratio: 1; border-radius: 8px; overflow: hidden;
  border: 1.5px solid var(--border); position: relative;
  background: var(--surface-2);
  transition: border-color 0.15s;
}
.album-thumb.is-cover { border-color: var(--amber); }
.album-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.album-thumb-overlay {
  position: absolute; inset: 0;
  background: rgba(15,17,23,0); transition: background 0.2s;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 5px;
  padding: 6px;
}
.album-thumb:hover .album-thumb-overlay { background: rgba(15,17,23,0.55); }
.album-thumb-btn {
  opacity: 0; transform: translateY(4px);
  transition: all 0.15s;
  padding: 4px 10px; border-radius: 6px;
  border: none; cursor: pointer; font-family: var(--font);
  font-size: 11px; font-weight: 500; white-space: nowrap;
}
.album-thumb:hover .album-thumb-btn { opacity: 1; transform: translateY(0); }
.album-thumb-btn.cover-btn { background: var(--amber); color: #fff; }
.album-thumb-btn.del-btn   { background: var(--red);   color: #fff; }
.album-cover-badge {
  position: absolute; top: 5px; left: 5px;
  background: var(--amber); color: #fff;
  font-size: 9px; font-weight: 700;
  padding: 2px 6px; border-radius: 4px;
  text-transform: uppercase; letter-spacing: 0.04em;
  display: flex; align-items: center; gap: 3px;
}
.album-order-badge {
  position: absolute; top: 5px; right: 5px;
  background: rgba(15,17,23,0.55); color: #fff;
  font-size: 10px; font-family: var(--mono);
  padding: 1px 6px; border-radius: 4px;
}
.album-add-tile {
  aspect-ratio: 1; border-radius: 8px;
  border: 2px dashed var(--border-strong);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 4px; cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  background: none;
}
.album-add-tile:hover { border-color: var(--blue); background: var(--blue-soft); }
.album-add-tile i { font-size: 20px; color: var(--ink-4); }
.album-add-tile span { font-size: 11px; color: var(--ink-4); }
.album-add-tile:hover i, .album-add-tile:hover span { color: var(--blue); }

/* ── IMAGE UPLOAD ── */
.img-upload-area {
  height: 140px; border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 4px;
  transition: border-color 0.15s, background 0.15s;
  overflow: hidden; position: relative;
}
.img-upload-area:hover { border-color: var(--blue); background: var(--blue-soft); }
.img-upload-area.has-img { border-style: solid; border-color: var(--border); padding: 0; }
.img-upload-area.drag-over { border-color: var(--blue); background: var(--blue-soft); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .stats-row { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-col-2 { grid-column: 1; }
  .price-group { grid-template-columns: 1fr; }
  .album-grid { grid-template-columns: repeat(3, 1fr); }
}