/* ============================================================
   Parts Catalog — style.css
   Theme: Industrial/utilitarian — black, gold (#FAB407), white
   ============================================================ */

:root {
  --bg:        #0a0a0a;
  --bg2:       #111111;
  --bg3:       #1a1a1a;
  --bg4:       #222222;
  --border:    #2a2a2a;
  --border2:   #333333;
  --gold:      #FAB407;
  --gold2:     #e0a000;
  --gold-dim:  rgba(250,180,7,0.12);
  --text:      #f0f0f0;
  --text2:     #999999;
  --text3:     #666666;
  --red:       #e74c3c;
  --green:     #27ae60;
  --blue:      #3498db;
  --font-head: 'Syne', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --font-body: 'Inter', sans-serif;
  --sidebar-w: 220px;
  --radius:    8px;
  --shadow:    0 4px 24px rgba(0,0,0,0.4);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

/* ── SIDEBAR ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
}
.logo-mark {
  width: 36px; height: 36px;
  background: var(--gold);
  color: #000;
  font-family: var(--font-head);
  font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px;
  flex-shrink: 0;
}
.logo-title { font-family: var(--font-head); font-size: 13px; font-weight: 700; color: var(--text); line-height: 1; }
.logo-sub   { font-family: var(--font-mono); font-size: 9px; color: var(--text3); letter-spacing: 2px; }

.sidebar-nav { padding: 12px 8px; flex: 1; display: flex; flex-direction: column; gap: 2px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 10px 12px;
  background: none; border: none;
  color: var(--text2); font-family: var(--font-body); font-size: 13px; font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer; text-align: left;
  transition: all 0.15s;
}
.nav-item:hover { background: var(--bg3); color: var(--text); }
.nav-item.active { background: var(--gold-dim); color: var(--gold); }
.nav-icon { width: 18px; text-align: center; font-size: 15px; }

.sidebar-bottom { padding: 16px; border-top: 1px solid var(--border); }
.export-btn {
  width: 100%; padding: 9px;
  background: none; border: 1px solid var(--border2);
  color: var(--text2); border-radius: var(--radius);
  font-family: var(--font-mono); font-size: 12px;
  cursor: pointer; transition: all 0.15s;
}
.export-btn:hover { border-color: var(--gold); color: var(--gold); }

/* ── MAIN CONTENT ── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── TOPBAR ── */
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 24px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.menu-toggle { display: none; background: none; border: none; color: var(--text); font-size: 20px; cursor: pointer; }
.search-wrap { flex: 1; position: relative; max-width: 480px; }
.search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text3); font-size: 16px; }
.search-input {
  width: 100%; padding: 8px 12px 8px 36px;
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); border-radius: var(--radius);
  font-family: var(--font-body); font-size: 13px;
  transition: border-color 0.15s;
}
.search-input:focus { outline: none; border-color: var(--gold); }
.topbar-right { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.low-stock-badge {
  padding: 5px 12px; background: rgba(231,76,60,0.15);
  border: 1px solid rgba(231,76,60,0.4); border-radius: 20px;
  color: var(--red); font-size: 12px; font-weight: 600;
  cursor: pointer; transition: all 0.15s;
}
.low-stock-badge:hover { background: rgba(231,76,60,0.25); }

/* ── VIEWS ── */
.view { display: none; padding: 24px; flex: 1; }
.view.active { display: block; }
.view-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px; flex-wrap: wrap; gap: 12px;
}
.view-header h1 { font-family: var(--font-head); font-size: 24px; font-weight: 700; }
.view-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.section-title { font-family: var(--font-head); font-size: 16px; font-weight: 700; margin-bottom: 16px; color: var(--text2); text-transform: uppercase; letter-spacing: 1px; }

/* ── STATS GRID ── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; margin-bottom: 32px; }
.stat-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 16px;
  transition: border-color 0.15s;
}
.stat-card:hover { border-color: var(--border2); }
.stat-num { font-family: var(--font-head); font-size: 32px; font-weight: 800; color: var(--gold); line-height: 1; }
.stat-label { font-size: 12px; color: var(--text3); margin-top: 4px; text-transform: uppercase; letter-spacing: 1px; }

/* ── PARTS GRID ── */
.parts-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.part-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  cursor: pointer; transition: all 0.15s;
}
.part-card:hover { border-color: var(--gold); transform: translateY(-2px); box-shadow: var(--shadow); }
.part-img {
  height: 160px; background: var(--bg3);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; border-bottom: 1px solid var(--border);
}
.part-img img { width: 100%; height: 100%; object-fit: cover; }
.part-img-placeholder { color: var(--text3); font-size: 40px; }
.part-info { padding: 12px; }
.part-pn { font-family: var(--font-mono); font-size: 11px; color: var(--gold); letter-spacing: 0.5px; margin-bottom: 4px; }
.part-name { font-weight: 600; font-size: 13px; line-height: 1.3; margin-bottom: 6px; }
.part-meta { display: flex; align-items: center; justify-content: space-between; }
.part-cat { font-size: 11px; color: var(--text3); background: var(--bg3); padding: 2px 8px; border-radius: 20px; }
.part-stock { font-size: 11px; font-family: var(--font-mono); }
.stock-ok { color: var(--green); }
.stock-low { color: var(--red); }
.stock-zero { color: var(--text3); }
.status-badge {
  font-size: 10px; padding: 2px 7px; border-radius: 20px;
  font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase;
}
.status-active { background: rgba(39,174,96,0.15); color: var(--green); border: 1px solid rgba(39,174,96,0.3); }
.status-discontinued { background: rgba(231,76,60,0.15); color: var(--red); border: 1px solid rgba(231,76,60,0.3); }
.status-low_stock { background: rgba(241,196,15,0.15); color: #f1c40f; border: 1px solid rgba(241,196,15,0.3); }

/* ── PAGINATION ── */
.pagination { display: flex; gap: 8px; margin-top: 24px; flex-wrap: wrap; align-items: center; }
.page-btn {
  padding: 6px 14px; border: 1px solid var(--border);
  background: var(--bg2); color: var(--text2);
  border-radius: var(--radius); cursor: pointer; font-size: 13px;
  transition: all 0.15s;
}
.page-btn:hover { border-color: var(--gold); color: var(--gold); }
.page-btn.active { background: var(--gold); color: #000; border-color: var(--gold); font-weight: 700; }

/* ── FILTERS ── */
.filter-select {
  padding: 7px 10px; background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); border-radius: var(--radius); font-size: 13px;
  cursor: pointer;
}
.filter-select:focus { outline: none; border-color: var(--gold); }

/* ── FORM ── */
.form-container { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 24px; }
.form-col { display: flex; flex-direction: column; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 12px; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }

input[type="text"], input[type="number"], input[type="email"], input[type="url"],
select, textarea {
  padding: 9px 12px;
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); border-radius: var(--radius);
  font-family: var(--font-body); font-size: 13px;
  transition: border-color 0.15s;
  width: 100%;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--gold); }
textarea { resize: vertical; min-height: 80px; }
.hint { font-size: 10px; color: var(--text3); font-weight: 400; text-transform: none; letter-spacing: 0; }

/* Part number preview */
.pn-preview-box {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  margin-bottom: 24px;
}
.pn-label { font-size: 10px; color: var(--text3); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 6px; }
.pn-value { font-family: var(--font-mono); font-size: 22px; font-weight: 500; color: var(--gold); letter-spacing: 1px; }
.pn-hint { font-size: 11px; color: var(--text3); margin-top: 4px; }

/* Image upload */
.image-upload-zone {
  border: 2px dashed var(--border2); border-radius: var(--radius);
  padding: 24px; text-align: center; cursor: pointer;
  transition: border-color 0.15s; min-height: 120px;
  display: flex; align-items: center; justify-content: center; flex-direction: column;
}
.image-upload-zone:hover { border-color: var(--gold); }
.upload-icon { font-size: 28px; color: var(--text3); margin-bottom: 8px; }
.upload-hint { font-size: 11px; color: var(--text3); margin-top: 4px; }

/* Specs */
.spec-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.spec-hint { font-size: 11px; color: var(--text3); }
.spec-row { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
.spec-row input { flex: 1; }
.btn-remove-spec {
  width: 28px; height: 28px; border-radius: 50%;
  background: rgba(231,76,60,0.15); border: 1px solid rgba(231,76,60,0.3);
  color: var(--red); cursor: pointer; font-size: 14px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.btn-add-spec {
  font-size: 12px; padding: 4px 10px;
  background: var(--gold-dim); border: 1px solid rgba(250,180,7,0.3);
  color: var(--gold); border-radius: var(--radius); cursor: pointer;
}

/* QR */
.qr-wrap { display: flex; gap: 16px; align-items: center; }
.qr-wrap canvas { border: 1px solid var(--border); border-radius: 4px; }
.qr-pn { font-family: var(--font-mono); font-size: 14px; color: var(--gold); margin-bottom: 8px; }

/* Form actions */
.form-actions { display: flex; justify-content: flex-end; gap: 12px; padding-top: 20px; border-top: 1px solid var(--border); }

/* Buttons */
.btn-primary {
  padding: 9px 20px; background: var(--gold); color: #000;
  border: none; border-radius: var(--radius);
  font-family: var(--font-body); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: background 0.15s;
}
.btn-primary:hover { background: var(--gold2); }
.btn-outline {
  padding: 9px 20px; background: none; color: var(--text2);
  border: 1px solid var(--border2); border-radius: var(--radius);
  font-family: var(--font-body); font-size: 13px;
  cursor: pointer; transition: all 0.15s;
}
.btn-outline:hover { border-color: var(--text2); color: var(--text); }
.btn-icon {
  padding: 6px 10px; background: none; border: 1px solid var(--border);
  color: var(--text3); border-radius: var(--radius); cursor: pointer;
  font-size: 14px; transition: all 0.15s;
}
.btn-icon:hover { border-color: var(--gold); color: var(--gold); }
.btn-danger {
  padding: 6px 10px; background: none; border: 1px solid rgba(231,76,60,0.3);
  color: var(--red); border-radius: var(--radius); cursor: pointer; font-size: 14px;
}
.btn-danger:hover { background: rgba(231,76,60,0.1); }

/* ── TABLES ── */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  text-align: left; padding: 10px 14px;
  font-size: 11px; text-transform: uppercase; letter-spacing: 1px;
  color: var(--text3); border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
}
.data-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); font-size: 13px; }
.data-table tr:hover td { background: var(--bg3); }
.td-code { font-family: var(--font-mono); font-size: 12px; color: var(--gold); }
.td-actions { display: flex; gap: 8px; }

/* ── MODALS ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.75); backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center;
  z-index: 200; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: 12px; padding: 28px;
  width: 100%; max-width: 480px;
  position: relative; max-height: 90vh; overflow-y: auto;
}
.modal-box.large { max-width: 760px; }
.modal-box.small { max-width: 380px; }
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: none; border: none; color: var(--text3);
  font-size: 18px; cursor: pointer; padding: 4px;
}
.modal-box h2 { font-family: var(--font-head); font-size: 20px; margin-bottom: 20px; }

/* Stock modal */
.radio-group { display: flex; gap: 20px; }
.radio-group label { display: flex; align-items: center; gap: 6px; cursor: pointer; }
.stock-part-info { background: var(--bg3); border-radius: var(--radius); padding: 12px; margin-bottom: 16px; font-size: 13px; }

/* ── PART DETAIL ── */
.detail-pn { font-family: var(--font-mono); font-size: 13px; color: var(--gold); margin-bottom: 4px; }
.detail-name { font-family: var(--font-head); font-size: 24px; font-weight: 700; margin-bottom: 16px; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.detail-img { border-radius: var(--radius); overflow: hidden; background: var(--bg3); min-height: 200px; display: flex; align-items: center; justify-content: center; }
.detail-img img { max-width: 100%; max-height: 280px; object-fit: contain; }
.detail-img-placeholder { font-size: 60px; color: var(--text3); }
.detail-section { margin-bottom: 16px; }
.detail-section-title { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--text3); margin-bottom: 8px; font-family: var(--font-mono); }
.detail-specs { display: flex; flex-direction: column; gap: 6px; }
.detail-spec-row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.detail-spec-key { color: var(--text3); }
.detail-spec-val { font-family: var(--font-mono); color: var(--text); }
.detail-actions { display: flex; gap: 10px; margin-top: 20px; flex-wrap: wrap; }

/* ── TOAST ── */
.toast {
  position: fixed; bottom: 24px; right: 24px;
  background: var(--bg3); border: 1px solid var(--border2);
  color: var(--text); padding: 12px 20px;
  border-radius: var(--radius); font-size: 13px;
  z-index: 999; transform: translateY(80px); opacity: 0;
  transition: all 0.3s ease; pointer-events: none;
  max-width: 340px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { border-left: 3px solid var(--green); }
.toast.error   { border-left: 3px solid var(--red); }
.toast.info    { border-left: 3px solid var(--gold); }

/* ── AUDIT LOG ── */
.audit-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.audit-table td { padding: 6px 8px; border-bottom: 1px solid var(--border); color: var(--text2); }
.audit-action { font-family: var(--font-mono); color: var(--gold); }

/* ── EMPTY STATE ── */
.empty-state { grid-column: 1/-1; text-align: center; padding: 60px 20px; color: var(--text3); }
.empty-icon { font-size: 48px; margin-bottom: 12px; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .menu-toggle { display: block; }
  .form-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .form-row-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .view { padding: 16px; }
  .topbar { padding: 12px 16px; }
  .form-row-2, .form-row-3 { grid-template-columns: 1fr; }
  .parts-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}