/* ============================================================
   SlabHub AZ — Global Stylesheet
   Dark premium stone marketplace
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700;800&family=Inter:wght@300;400;500;600&display=swap');

:root {
  --bg:           #080808;
  --surface:      #111218;
  --surface-2:    #1a1d26;
  --cyan:         #00c8ff;
  --cyan-glow:    rgba(0, 200, 255, 0.18);
  --cyan-dim:     rgba(0, 200, 255, 0.07);
  --white:        #e8e8e8;
  --white-dim:    rgba(232, 232, 232, 0.55);
  --grey:         #5a6270;
  --border:       rgba(255, 255, 255, 0.07);
  --border-cyan:  rgba(0, 200, 255, 0.22);
  --font-display: 'Barlow Condensed', sans-serif;
  --font-body:    'Inter', sans-serif;
  --radius:       4px;
  --radius-lg:    8px;
  --ease:         0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }
input, select, textarea { font-family: inherit; }

/* ── Utility ─────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── Nav ─────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(8, 8, 8, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 10em; max-width: 1200px; margin: 0 auto; padding: 0 24px;
}
.nav__logo img { height: 10em; width: auto; }
.nav__logo-fallback {
  font-family: var(--font-display); font-size: 22px; font-weight: 800;
  letter-spacing: 0.06em; text-transform: uppercase; display: none;
}
.nav__logo-fallback span { color: var(--cyan); }

.nav__links { display: flex; align-items: center; gap: 36px; list-style: none; }
.nav__links a {
  font-size: 12px; font-weight: 500; letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--white-dim); transition: color var(--ease);
}
.nav__links a:hover, .nav__links a.active { color: var(--cyan); }

.nav__cta {
  background: var(--cyan); color: #000;
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 10px 20px; border-radius: var(--radius); transition: opacity var(--ease);
}
.nav__cta:hover { opacity: 0.85; }

.nav__toggle { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.nav__toggle span { width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: var(--ease); }

/* ── Buttons ─────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.05em;
  padding: 13px 26px; border-radius: var(--radius); transition: all var(--ease);
  white-space: nowrap;
}
.btn-primary { background: var(--cyan); color: #000; }
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }
.btn-outline { border: 1px solid var(--border-cyan); color: var(--cyan); }
.btn-outline:hover { background: var(--cyan-dim); }
.btn-ghost { color: var(--white-dim); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: rgba(255,255,255,0.2); color: var(--white); }
.btn-danger { border: 1px solid rgba(248,113,113,0.25); color: #f87171; }
.btn-danger:hover { background: rgba(248,113,113,0.1); }
.btn-full { width: 100%; justify-content: center; }

/* ── Hero ────────────────────────────── */
.hero {
  position: relative; min-height: 88vh;
  display: flex; align-items: center; overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 18% 65%, rgba(0,200,255,0.07) 0%, transparent 55%),
    radial-gradient(ellipse at 82% 25%, rgba(0,200,255,0.04) 0%, transparent 50%),
    linear-gradient(155deg, #09090b 0%, #080808 100%);
}
.hero__bg-img {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.14;
}
.hero__inner {
  position: relative; z-index: 1;
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
}
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--cyan); margin-bottom: 28px;
}
.hero__eyebrow::before { content: ''; width: 36px; height: 1px; background: var(--cyan); }
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(56px, 9vw, 104px);
  font-weight: 800; line-height: 0.92;
  text-transform: uppercase; letter-spacing: -0.01em;
  margin-bottom: 28px;
}
.hero__title em { font-style: normal; color: var(--cyan); }
.hero__subtitle {
  font-size: 17px; color: var(--white-dim);
  max-width: 460px; margin-bottom: 44px; line-height: 1.75;
}
.hero__actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.hero__scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--grey); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
}
.hero__scroll::after {
  content: ''; width: 1px; height: 44px;
  background: linear-gradient(to bottom, var(--grey), transparent);
  animation: scrollPulse 1.8s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.25; }
  50% { opacity: 0.9; }
}

/* ── Sections ────────────────────────── */
.section { padding: 88px 0; }
.section--dark { background: var(--bg); }
.section--surface { background: var(--surface); }

.section__eyebrow {
  display: block; font-size: 11px; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--cyan); margin-bottom: 12px;
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.02em; line-height: 1;
}
.section__title em { font-style: normal; color: var(--cyan); }
.section__sub { font-size: 15px; color: var(--white-dim); margin-top: 12px; max-width: 500px; }

/* ── Slab Grid ───────────────────────── */
.slab-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.slab-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: transform var(--ease), border-color var(--ease);
  cursor: pointer; display: block;
}
.slab-card:hover { transform: translateY(-3px); border-color: var(--border-cyan); }

.slab-card__img-wrap {
  position: relative; aspect-ratio: 4/3; overflow: hidden;
  background: var(--surface-2);
}
.slab-card__img-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.45s ease;
}
.slab-card:hover .slab-card__img-wrap img { transform: scale(1.05); }

/* Hover reveal overlay */
.slab-card__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(8,8,8,0.88) 0%, transparent 55%);
  padding: 0 14px 14px;
  display: flex; flex-direction: column; justify-content: flex-end;
  opacity: 0; transition: opacity 0.28s ease;
}
.slab-card:hover .slab-card__overlay { opacity: 1; }
.slab-card__specs { display: flex; gap: 14px; flex-wrap: wrap; }
.slab-card__spec { font-size: 11px; color: var(--white-dim); }
.slab-card__spec strong { display: block; font-size: 9px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--grey); }

.slab-card__badge {
  position: absolute; top: 10px; right: 10px;
  font-size: 9px; font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase;
  padding: 4px 9px; border-radius: 2px;
}
.badge-in  { background: rgba(0,200,255,0.12); color: var(--cyan); border: 1px solid rgba(0,200,255,0.28); }
.badge-out { background: rgba(255,255,255,0.06); color: var(--grey); border: 1px solid var(--border); }

.slab-card__body { padding: 14px 16px 16px; }
.slab-card__name {
  font-family: var(--font-display); font-size: 17px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 3px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.slab-card__type { font-size: 11px; color: var(--grey); text-transform: uppercase; letter-spacing: 0.07em; }
.slab-card__price { font-size: 14px; font-weight: 600; color: var(--cyan); margin-top: 6px; }

/* ── Inventory Layout ────────────────── */
.inventory-layout { display: grid; grid-template-columns: 228px 1fr; gap: 28px; align-items: start; }
.filters {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 22px;
  position: sticky; top: 88px;
}
.filters__heading {
  font-size: 11px; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--grey); margin-bottom: 20px;
}
.filter-group { margin-bottom: 22px; }
.filter-group__label {
  display: block; font-size: 10px; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--grey); margin-bottom: 10px;
}
.filter-option {
  display: flex; align-items: center; gap: 10px;
  padding: 5px 0; cursor: pointer;
  font-size: 13px; color: var(--white-dim); transition: color var(--ease);
}
.filter-option:hover { color: var(--white); }
.filter-option input[type="checkbox"] { width: 15px; height: 15px; accent-color: var(--cyan); flex-shrink: 0; }
.filter-divider { height: 1px; background: var(--border); margin: 18px 0; }
.filter-reset { font-size: 12px; color: var(--grey); cursor: pointer; transition: color var(--ease); }
.filter-reset:hover { color: var(--cyan); }

.inventory-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; margin-bottom: 20px; flex-wrap: wrap;
}
.search-bar {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0 14px;
  flex: 1; min-width: 200px; max-width: 340px;
  transition: border-color var(--ease);
}
.search-bar:focus-within { border-color: var(--border-cyan); }
.search-bar svg { color: var(--grey); flex-shrink: 0; }
.search-bar input {
  flex: 1; background: none; border: none; outline: none;
  color: var(--white); font-size: 14px; padding: 13px 0;
}
.search-bar input::placeholder { color: var(--grey); }
.toolbar-right { display: flex; align-items: center; gap: 12px; }
.slab-count { font-size: 13px; color: var(--grey); }
.slab-count strong { color: var(--white); }
.sort-select {
  background: var(--surface); border: 1px solid var(--border);
  color: var(--white); font-size: 13px; padding: 10px 14px;
  border-radius: var(--radius); outline: none; cursor: pointer;
}
.filter-toggle-btn {
  display: none; align-items: center; gap: 8px;
  font-size: 13px; color: var(--white-dim);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 14px;
}

/* ── Empty state ─────────────────────── */
.empty-state { text-align: center; padding: 80px 24px; }
.empty-state__icon { font-size: 40px; margin-bottom: 16px; }
.empty-state__title {
  font-family: var(--font-display); font-size: 22px; font-weight: 700;
  text-transform: uppercase; color: var(--white-dim); margin-bottom: 8px;
}
.empty-state p { font-size: 14px; color: var(--grey); }

/* ── Slab Detail ─────────────────────── */
.slab-detail {
  display: grid; grid-template-columns: 1fr 400px;
  gap: 56px; align-items: start; padding: 56px 0 80px;
}
.gallery__main {
  aspect-ratio: 4/3; border-radius: var(--radius-lg);
  overflow: hidden; background: var(--surface);
  border: 1px solid var(--border); margin-bottom: 10px;
}
.gallery__main img { width: 100%; height: 100%; object-fit: cover; }
.gallery__thumbs { display: flex; gap: 8px; flex-wrap: wrap; }
.gallery__thumb {
  width: 76px; height: 57px; border-radius: var(--radius);
  overflow: hidden; border: 2px solid transparent; cursor: pointer;
  transition: border-color var(--ease); flex-shrink: 0;
}
.gallery__thumb.active { border-color: var(--cyan); }
.gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }

.slab-info__eyebrow {
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--cyan); margin-bottom: 14px;
}
.slab-info__name {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.02em; line-height: 1; margin-bottom: 16px;
}
.slab-info__price { font-size: 26px; font-weight: 600; color: var(--cyan); margin-bottom: 28px; }

.slab-specs {
  display: grid; grid-template-columns: 1fr 1fr;
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; margin-bottom: 28px;
}
.slab-spec { padding: 14px 18px; border-bottom: 1px solid var(--border); border-right: 1px solid var(--border); }
.slab-spec:nth-child(even) { border-right: none; }
.slab-spec:nth-last-child(-n+2) { border-bottom: none; }
.slab-spec__label {
  font-size: 10px; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--grey); margin-bottom: 4px;
}
.slab-spec__value { font-size: 15px; font-weight: 500; }

.slab-desc { font-size: 14px; color: var(--white-dim); line-height: 1.85; margin-bottom: 28px; }
.slab-cta { display: flex; flex-direction: column; gap: 10px; }
.breadcrumb {
  font-size: 12px; color: var(--grey); margin-bottom: 28px;
  display: flex; align-items: center; gap: 8px;
}
.breadcrumb a { color: var(--grey); transition: color var(--ease); }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb span { color: var(--border); }

/* ── Features ────────────────────────── */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 30px;
  transition: border-color var(--ease);
}
.feature-card:hover { border-color: var(--border-cyan); }
.feature-card__icon { font-size: 26px; margin-bottom: 14px; }
.feature-card__title {
  font-family: var(--font-display); font-size: 18px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 10px;
}
.feature-card__text { font-size: 14px; color: var(--white-dim); line-height: 1.75; }

/* ── CTA Banner ──────────────────────── */
.cta-banner {
  background: var(--surface); border: 1px solid var(--border-cyan);
  border-radius: var(--radius-lg); padding: 64px 48px; text-align: center;
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; top: -40%; left: 50%; transform: translateX(-50%);
  width: 500px; height: 280px;
  background: radial-gradient(ellipse, rgba(0,200,255,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.cta-banner__title {
  font-family: var(--font-display); font-size: clamp(28px, 4vw, 48px);
  font-weight: 800; text-transform: uppercase; margin-bottom: 14px;
}
.cta-banner__text {
  font-size: 16px; color: var(--white-dim); max-width: 460px;
  margin: 0 auto 32px;
}

/* ── Contact Page ────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info__item { display: flex; gap: 16px; margin-bottom: 24px; align-items: flex-start; }
.contact-info__icon { font-size: 20px; flex-shrink: 0; margin-top: 2px; }
.contact-info__label {
  font-size: 10px; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--grey); margin-bottom: 4px;
}
.contact-info__value { font-size: 15px; color: var(--white); }
.contact-form-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px;
}

/* ── Form fields ─────────────────────── */
.form-group { margin-bottom: 18px; }
.form-label {
  display: block; font-size: 11px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--grey); margin-bottom: 7px;
}
.form-input, .form-select, .form-textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--border);
  color: var(--white); font-size: 14px; padding: 12px 14px;
  border-radius: var(--radius); outline: none; transition: border-color var(--ease);
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--border-cyan); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-select option { background: #1a1d26; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-toggle { display: flex; align-items: center; gap: 12px; cursor: pointer; }
.form-toggle input[type="checkbox"] { width: 38px; height: 20px; accent-color: var(--cyan); }
.form-toggle-label { font-size: 13px; color: var(--white-dim); }
.form-error { font-size: 12px; color: #f87171; margin-top: 6px; display: none; }

/* ── Upload ──────────────────────────── */
.upload-area {
  border: 2px dashed var(--border); border-radius: var(--radius-lg);
  padding: 36px 24px; text-align: center; cursor: pointer;
  transition: border-color var(--ease), background var(--ease);
}
.upload-area:hover, .upload-area.drag-over { border-color: var(--border-cyan); background: var(--cyan-dim); }
.upload-area__icon { font-size: 28px; margin-bottom: 10px; }
.upload-area__text { font-size: 13px; color: var(--grey); }
.upload-area__text strong { color: var(--cyan); }
.preview-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 14px; }
.preview-item {
  position: relative; aspect-ratio: 4/3; border-radius: var(--radius); overflow: hidden;
  background: var(--surface-2); border: 1px solid var(--border);
}
.preview-item img { width: 100%; height: 100%; object-fit: cover; }
.preview-item__rm {
  position: absolute; top: 4px; right: 4px;
  background: rgba(0,0,0,0.75); color: #fff; border-radius: 50%;
  width: 20px; height: 20px; font-size: 11px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: background var(--ease);
}
.preview-item__rm:hover { background: #f87171; }

/* ── Badges / Status ─────────────────── */
.badge {
  display: inline-flex; align-items: center;
  font-size: 10px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 2px;
}
.badge-pub  { background: rgba(0,200,255,0.1); color: var(--cyan); }
.badge-draft{ background: rgba(255,255,255,0.05); color: var(--grey); }
.badge-avail{ background: rgba(52,211,153,0.1); color: #34d399; }
.badge-sold { background: rgba(255,255,255,0.05); color: var(--grey); }

/* ── Admin Login ─────────────────────── */
.admin-login-page {
  min-height: 100vh; display: flex; align-items: center;
  justify-content: center; padding: 24px; background: var(--bg);
}
.admin-login-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 48px;
  width: 100%; max-width: 380px;
}
.admin-login-logo { text-align: center; margin-bottom: 28px; }
.admin-login-logo img { height: 52px; margin: 0 auto; }
.admin-login-title {
  font-family: var(--font-display); font-size: 18px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  text-align: center; margin-bottom: 28px; color: var(--white-dim);
}
.login-error {
  background: rgba(248,113,113,0.1); border: 1px solid rgba(248,113,113,0.25);
  color: #f87171; font-size: 13px; padding: 10px 14px;
  border-radius: var(--radius); margin-bottom: 16px; display: none;
}

/* ── Admin Dashboard ─────────────────── */
.admin-page {
  display: grid; grid-template-columns: 220px 1fr;
  min-height: 100vh; display: none;
}
.admin-sidebar {
  background: var(--surface); border-right: 1px solid var(--border);
  padding: 24px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.admin-sidebar-logo { margin-bottom: 32px; }
.admin-sidebar-logo img { height: 38px; }
.admin-nav { list-style: none; }
.admin-nav li { margin-bottom: 2px; }
.admin-nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius);
  font-size: 13px; color: var(--white-dim);
  transition: all var(--ease);
}
.admin-nav a:hover, .admin-nav a.active { background: var(--cyan-dim); color: var(--cyan); }
.admin-nav-divider { height: 1px; background: var(--border); margin: 12px 0; }

.admin-main { padding: 36px 40px; }
.admin-topbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 28px; gap: 16px; flex-wrap: wrap;
}
.admin-page-title {
  font-family: var(--font-display); font-size: 26px; font-weight: 700; text-transform: uppercase;
}

/* Admin table */
.admin-table-wrap {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
}
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th {
  font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--grey); padding: 13px 18px; text-align: left;
  border-bottom: 1px solid var(--border); background: var(--surface-2);
}
.admin-table td {
  padding: 12px 18px; font-size: 13px;
  border-bottom: 1px solid var(--border); vertical-align: middle;
}
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: rgba(255,255,255,0.015); }
.admin-table__thumb {
  width: 52px; height: 39px; object-fit: cover;
  border-radius: var(--radius); display: block;
}
.admin-thumb-placeholder {
  width: 52px; height: 39px; background: var(--surface-2);
  border-radius: var(--radius); border: 1px solid var(--border);
}
.admin-slab-name { font-weight: 600; margin-bottom: 2px; }
.admin-slab-slug { font-size: 11px; color: var(--grey); }
.action-btns { display: flex; gap: 6px; }
.action-btn {
  font-size: 11px; font-weight: 600; letter-spacing: 0.04em;
  padding: 5px 11px; border-radius: var(--radius);
  transition: all var(--ease); border: 1px solid var(--border);
  color: var(--white-dim);
}
.action-btn:hover { border-color: var(--border-cyan); color: var(--cyan); }
.action-btn-del { border-color: rgba(248,113,113,0.2); color: #f87171; }
.action-btn-del:hover { background: rgba(248,113,113,0.1); border-color: rgba(248,113,113,0.35); }

/* Admin form */
.admin-form-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px;
}
.admin-form-section {
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--grey); margin-bottom: 18px; margin-top: 28px; padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.admin-form-section:first-child { margin-top: 0; }

/* ── Notification ────────────────────── */
.notification {
  position: fixed; bottom: 24px; right: 24px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 14px 20px;
  font-size: 14px; z-index: 999;
  transform: translateY(80px); opacity: 0;
  transition: all 0.3s ease; max-width: 300px;
  pointer-events: none;
}
.notification.show { transform: translateY(0); opacity: 1; }
.notification.success { border-color: rgba(52,211,153,0.3); color: #34d399; }
.notification.error { border-color: rgba(248,113,113,0.3); color: #f87171; }

/* ── Skeleton ────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-2) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite; border-radius: var(--radius);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ── Footer ──────────────────────────── */
.footer { background: var(--surface); border-top: 1px solid var(--border); padding: 52px 0 28px; }
.footer__top {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 40px; margin-bottom: 44px; flex-wrap: wrap;
}
.footer__logo img { height: 70px; width: auto; margin-bottom: 12px; }
.footer__tagline { font-size: 11px; color: var(--grey); letter-spacing: 0.07em; text-transform: uppercase; }
.footer__cols { display: flex; gap: 52px; flex-wrap: wrap; }
.footer__col-title {
  font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--grey); margin-bottom: 14px;
}
.footer__col-links { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.footer__col-links a { font-size: 13px; color: var(--white-dim); transition: color var(--ease); }
.footer__col-links a:hover { color: var(--cyan); }
.footer__bottom {
  border-top: 1px solid var(--border); padding-top: 22px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
}
.footer__copy { font-size: 12px; color: var(--grey); }
.footer__admin { font-size: 11px; color: var(--grey); transition: color var(--ease); }
.footer__admin:hover { color: var(--cyan); }

/* ── Admin Mobile Nav ────────────────── */
.admin-mobile-nav {
  display: none;
  align-items: center; justify-content: space-between;
  padding: 12px 16px; gap: 8px; flex-wrap: wrap;
  background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.admin-mobile-nav__links { display: flex; gap: 6px; flex-wrap: wrap; }
.admin-mobile-nav__btn {
  font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 8px 14px; border-radius: var(--radius);
  border: 1px solid var(--border); color: var(--white-dim);
  background: none; cursor: pointer; transition: all var(--ease);
}
.admin-mobile-nav__btn:hover { border-color: var(--cyan); color: var(--cyan); }
.admin-mobile-nav__btn--danger { border-color: rgba(248,113,113,0.25); color: #f87171; }
.admin-mobile-nav__btn--danger:hover { background: rgba(248,113,113,0.1); }

/* ── Responsive ──────────────────────── */
@media (max-width: 1024px) {
  .slab-grid { grid-template-columns: repeat(3, 1fr); }
  .inventory-layout { grid-template-columns: 200px 1fr; }
  .slab-detail { grid-template-columns: 1fr; gap: 32px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav { backdrop-filter: none; }
  .nav__inner { height: 100px !important; }
  .nav__logo img { height: 80px !important; width: auto !important; }
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .nav__links.open {
    display: flex; flex-direction: column; align-items: flex-start;
    position: fixed; inset: 100px 0 0;
    background: rgba(8,8,8,0.98); padding: 32px 24px;
    gap: 22px; z-index: 99; overflow-y: auto;
  }
  .nav__links.open li { width: 100%; }
  .nav__links.open a { font-size: 17px; color: var(--white); display: block; }
  .nav-overlay {
    display: none; position: fixed; inset: 0; z-index: 98;
  }
  .nav-overlay.open { display: block; }
  .hero { min-height: 78vh; }
  .hero__title { font-size: 52px; }
  .slab-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .inventory-layout { grid-template-columns: 1fr; }
  .filters { position: static; display: none; border-radius: var(--radius-lg); }
  .filters.open { display: block; }
  .filter-toggle-btn { display: flex; }
  .features-grid { grid-template-columns: 1fr; }
  .admin-page { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
  .admin-mobile-nav { display: flex; }
  .admin-main { padding: 24px 16px; }
  .form-row { grid-template-columns: 1fr; }
  .preview-grid { grid-template-columns: repeat(3, 1fr); }
  .cta-banner { padding: 44px 24px; }
}

@media (max-width: 480px) {
  .slab-grid { grid-template-columns: 1fr; }
  .hero__title { font-size: 42px; }
  .section { padding: 64px 0; }
  .slab-specs { grid-template-columns: 1fr; }
  .slab-spec:nth-child(even) { border-right: 1px solid var(--border); }
  .slab-spec:nth-last-child(-n+2) { border-bottom: 1px solid var(--border); }
  .slab-spec:last-child { border-bottom: none; }
}