/* === Design Studio Portal — Dark Purple Theme === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* === CSS Variables === */
:root {
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 8px;
  --radius-lg: 14px;
  --transition: 0.18s ease;
}

/* ── Dark theme (default) — deep purple aesthetic ── */
[data-theme="dark"] {
  --bg:           #0d0d1a;
  --bg-secondary: #080812;
  --bg-card:      #12122a;
  --bg-elevated:  #1a1a35;
  --border:       rgba(139,92,246,0.15);
  --border-focus: rgba(139,92,246,0.5);
  --text:         #f0eeff;
  --text-secondary: #a89ec0;
  --text-muted:   #6b6388;
  --accent:       #8b5cf6;
  --accent-2:     #06b6d4;
  --accent-hover: #7c3aed;
  --accent-subtle:rgba(139,92,246,0.12);
  --green:        #10b981;
  --red:          #ef4444;
  --yellow:       #f59e0b;
  --nav-bg:       rgba(8,8,18,0.88);
  --input-bg:     #0d0d20;
  --shadow:       0 8px 32px rgba(0,0,0,0.6);
  --shadow-card:  0 4px 20px rgba(0,0,0,0.4);
  --glow:         0 0 20px rgba(139,92,246,0.25);
  --glow-sm:      0 0 10px rgba(139,92,246,0.2);
  --grid-color:   rgba(139,92,246,0.04);
}

/* ── Light theme ── */
[data-theme="light"] {
  --bg:           #f5f3ff;
  --bg-secondary: #ede9fe;
  --bg-card:      #ffffff;
  --bg-elevated:  #f0ebff;
  --border:       rgba(139,92,246,0.15);
  --border-focus: rgba(139,92,246,0.4);
  --text:         #1e1b4b;
  --text-secondary:#4c4772;
  --text-muted:   #9ca3af;
  --accent:       #7c3aed;
  --accent-2:     #0891b2;
  --accent-hover: #6d28d9;
  --accent-subtle:rgba(124,58,237,0.1);
  --green:        #059669;
  --red:          #dc2626;
  --yellow:       #d97706;
  --nav-bg:       rgba(245,243,255,0.92);
  --input-bg:     #f5f3ff;
  --shadow:       0 4px 24px rgba(109,40,217,0.1);
  --shadow-card:  0 2px 12px rgba(109,40,217,0.08);
  --glow:         0 0 20px rgba(124,58,237,0.1);
  --glow-sm:      none;
  --grid-color:   rgba(124,58,237,0.04);
}

/* === Base === */
html { font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* Subtle dot grid background like the design reference */
  background-image:
    radial-gradient(circle at 20% 20%, rgba(139,92,246,0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(6,182,212,0.04) 0%, transparent 50%),
    radial-gradient(var(--grid-color) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 28px 28px;
  background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* === Scrollbar === */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: rgba(139,92,246,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* === Navbar === */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; gap: 24px;
  padding: 0 32px; height: 56px;
}
.nav-logo { display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: -0.3px; }
.logo-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800;
  box-shadow: var(--glow-sm);
}
.logo-text { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-center { display: flex; align-items: center; gap: 2px; flex: 1; }
.nav-link {
  padding: 6px 13px; border-radius: 6px;
  font-size: 13px; font-weight: 500; color: var(--text-secondary);
  transition: var(--transition);
}
.nav-link:hover { background: var(--accent-subtle); color: var(--text); }
.nav-link.active { background: var(--accent-subtle); color: var(--accent); }
.nav-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }

/* Theme toggle */
.theme-toggle {
  width: 34px; height: 34px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg-card);
  color: var(--text-secondary); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); box-shadow: var(--glow-sm); }

/* User menu */
.user-menu { position: relative; }
.user-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 10px 4px 4px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg-card);
  color: var(--text); cursor: pointer; font-size: 13px;
  transition: var(--transition);
}
.user-btn:hover { border-color: var(--accent); box-shadow: var(--glow-sm); }
.user-avatar {
  width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700;
}
.user-dropdown {
  display: none; position: absolute; top: calc(100% + 6px); right: 0;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); min-width: 150px;
  box-shadow: var(--shadow); overflow: hidden;
}
.user-dropdown.open { display: block; }
.user-dropdown a {
  display: block; padding: 9px 14px;
  font-size: 13px; color: var(--text-secondary);
  transition: var(--transition);
}
.user-dropdown a:hover { background: var(--bg-elevated); color: var(--accent); }
.user-dropdown .logout-link { color: var(--red); }

/* === Buttons === */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: var(--radius);
  font-size: 13px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: var(--transition);
  white-space: nowrap; letter-spacing: 0.01em;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #6d28d9);
  color: #fff; border-color: transparent;
  box-shadow: 0 4px 14px rgba(139,92,246,0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #7c3aed, #5b21b6);
  box-shadow: 0 6px 20px rgba(139,92,246,0.5);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent; color: var(--text-secondary);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--accent-subtle); color: var(--accent); border-color: var(--accent); }
.btn-outline {
  background: transparent; color: var(--accent);
  border-color: var(--accent);
}
.btn-outline:hover { background: var(--accent-subtle); }
.btn-danger { background: var(--red); color: #fff; border-color: var(--red); }
.btn-success { background: var(--green); color: #fff; border-color: var(--green); }
.btn-sm  { padding: 5px 12px; font-size: 12px; }
.btn-lg  { padding: 11px 24px; font-size: 14px; }

/* === Main content === */
.main-content { flex: 1; }

/* === Page layout === */
.page { width: 100%; padding: 40px 32px; }
.page-narrow { width: 100%; max-width: 680px; padding: 40px 32px; }
.page-header { margin-bottom: 32px; }
.page-header h1 { font-size: 32px; font-weight: 700; line-height: 1.2; background: linear-gradient(90deg, var(--text) 60%, var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.page-header p { color: var(--text-secondary); margin-top: 6px; font-size: 15px; }

/* === Cards === */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  position: relative;
}
.card::before {
  content: '';
  position: absolute; inset: 0; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(139,92,246,0.05), transparent);
  pointer-events: none; opacity: 0; transition: opacity .2s;
}
.card:hover { border-color: rgba(139,92,246,0.35); box-shadow: var(--shadow), var(--glow); transform: translateY(-2px); }
.card:hover::before { opacity: 1; }
.card-body { padding: 20px; }

/* === Case Study Grid === */
/* === Case Study Grid — Dribbble-style ============= */
.studies-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.study-meta-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* Card shell */
.study-card {
  cursor: pointer; display: block; text-decoration: none;
  border-radius: var(--radius-lg); overflow: hidden;
  background: var(--bg-card); border: 1px solid var(--border);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.study-card:hover { transform: translateY(-3px); box-shadow: var(--shadow), var(--glow); border-color: rgba(139,92,246,.35); }

/* Image area */
.sc-img { position: relative; width: 100%; aspect-ratio: 4/3; overflow: hidden; background: var(--bg-elevated); }
.sc-img img { width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease; }
.study-card:hover .sc-img img { transform: scale(1.05); }

/* Placeholder */
.sc-placeholder { width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,var(--bg-elevated),var(--bg-secondary));color:var(--text-muted); }
.sc-placeholder-letter { width:52px;height:52px;border-radius:50%;background:var(--accent-subtle);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800; }

/* Hover overlay */
.sc-overlay {
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(0,0,0,.72) 0%,rgba(0,0,0,.18) 55%,transparent 100%);
  opacity:0;transition:opacity .25s ease;
  display:flex;flex-direction:column;justify-content:space-between;padding:10px;
}
.study-card:hover .sc-overlay { opacity:1; }

/* Save button */
.sc-save-btn {
  align-self:flex-end;background:rgba(255,255,255,.18);backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.25);color:#fff;
  border-radius:20px;padding:5px 12px;font-size:11px;font-weight:600;cursor:pointer;
  display:flex;align-items:center;gap:4px;transition:background .15s;white-space:nowrap;
}
.sc-save-btn:hover { background:rgba(139,92,246,.7); border-color:var(--accent); }

/* Overlay footer */
.sc-overlay-foot { display:flex;align-items:center;justify-content:space-between;gap:8px; }
.sc-overlay-author { display:flex;align-items:center;gap:6px;font-size:12px;color:rgba(255,255,255,.9);font-weight:500; }
.sc-overlay-avatar { width:22px;height:22px;border-radius:50%;border:1.5px solid rgba(255,255,255,.4);flex-shrink:0;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:700;color:#fff;overflow:hidden; }
.sc-overlay-avatar img { width:100%;height:100%;object-fit:cover; }
.sc-overlay-stats { display:flex;align-items:center;gap:8px;font-size:11px;color:rgba(255,255,255,.8); }

/* Always-visible strip */
.sc-info { padding:10px 12px 11px;border-top:1px solid var(--border); }
.sc-title { font-size:13px;font-weight:600;color:var(--text);line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:3px; }
.sc-stats-row { display:flex;align-items:center;gap:8px;font-size:11px;color:var(--text-muted); }

/* Responsive */
@media(max-width:1200px){.studies-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:860px){.studies-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.studies-grid{grid-template-columns:1fr}}

/* === Badges === */
.badge {
  display: inline-flex; align-items: center;
  padding: 2px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.03em;
}
.badge-category { background: rgba(139,92,246,0.15); color: var(--accent); border: 1px solid rgba(139,92,246,0.25); }
.badge-pending  { background: rgba(245,158,11,0.12); color: var(--yellow); }
.badge-approved { background: rgba(16,185,129,0.12); color: var(--green); }
.badge-rejected { background: rgba(239,68,68,0.12);  color: var(--red); }

/* === Filter tabs === */
.filter-tabs { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-bottom: 28px; }
.filter-tab {
  padding: 5px 14px; border-radius: 20px;
  font-size: 13px; font-weight: 500; cursor: pointer;
  border: 1px solid var(--border); background: transparent;
  color: var(--text-secondary); transition: var(--transition);
}
.filter-tab:hover { background: var(--accent-subtle); color: var(--accent); border-color: rgba(139,92,246,0.3); }
.filter-tab.active { background: rgba(139,92,246,0.15); color: var(--accent); border-color: var(--accent); box-shadow: var(--glow-sm); }

/* === Forms === */
.form-section {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px; margin-bottom: 20px;
}
.form-section h2 { font-size: 15px; font-weight: 600; margin-bottom: 20px;
  padding-bottom: 14px; border-bottom: 1px solid var(--border); color: var(--accent); }
.form-group { margin-bottom: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 500;
  margin-bottom: 6px; color: var(--text-secondary); }
.form-label .req { color: var(--red); margin-left: 2px; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 9px 13px;
  background: var(--input-bg); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text);
  font-size: 14px; font-family: var(--font);
  transition: var(--transition); outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(139,92,246,0.15), var(--glow-sm);
}
.form-textarea { resize: vertical; min-height: 100px; line-height: 1.6; }
.form-hint  { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.form-error { font-size: 12px; color: var(--red); margin-top: 4px; }

/* === File upload area === */
.upload-area {
  border: 2px dashed var(--border); border-radius: var(--radius-lg);
  padding: 36px 24px; text-align: center; cursor: pointer;
  transition: var(--transition); position: relative;
  background: rgba(139,92,246,0.02);
}
.upload-area:hover, .upload-area.drag-over {
  border-color: var(--accent); background: var(--accent-subtle);
}
.upload-area input[type=file] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.upload-icon { font-size: 36px; margin-bottom: 10px; }
.upload-area h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.upload-area p { font-size: 13px; color: var(--text-muted); }

/* Screen previews */
.screens-preview { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin-top: 14px; }
.screen-thumb { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/10; background: var(--bg-elevated); }
.screen-thumb img { width: 100%; height: 100%; object-fit: cover; }
.screen-remove {
  position: absolute; top: 5px; right: 5px; width: 22px; height: 22px;
  border-radius: 50%; background: rgba(0,0,0,0.75); color: #fff;
  border: none; cursor: pointer; font-size: 13px;
  display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.screen-remove:hover { background: var(--red); }

/* === Auth pages === */
.auth-page {
  min-height: calc(100vh - 56px);
  display: flex; align-items: center; justify-content: center; padding: 40px 24px;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(139,92,246,0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(6,182,212,0.08) 0%, transparent 50%);
}
.auth-box {
  width: 100%; max-width: 420px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 20px; padding: 40px;
  box-shadow: var(--shadow), 0 0 40px rgba(139,92,246,0.1);
  position: relative; overflow: hidden;
}
.auth-box::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 160px; height: 160px; border-radius: 50%;
  background: radial-gradient(circle, rgba(139,92,246,0.15), transparent);
  pointer-events: none;
}
.auth-box h1 { font-size: 24px; font-weight: 700; margin-bottom: 6px;
  background: linear-gradient(90deg, var(--text), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.auth-box .subtitle { font-size: 14px; color: var(--text-secondary); margin-bottom: 28px; }
.auth-footer { text-align: center; margin-top: 20px; font-size: 14px; color: var(--text-secondary); }
.auth-footer a { color: var(--accent); font-weight: 500; }
.auth-footer a:hover { text-decoration: underline; }

/* === Alerts === */
.alert {
  padding: 12px 16px; border-radius: var(--radius);
  font-size: 13px; margin-bottom: 16px; border: 1px solid;
}
.alert-error   { background: rgba(239,68,68,0.08);  border-color: rgba(239,68,68,0.3);   color: #fca5a5; }
.alert-success { background: rgba(16,185,129,0.08); border-color: rgba(16,185,129,0.3);  color: #6ee7b7; }
.alert-info    { background: var(--accent-subtle);  border-color: rgba(139,92,246,0.3);  color: var(--accent); }

/* === Hero === */
.study-hero { position: relative; width: 100%; aspect-ratio: 21/9; overflow: hidden; background: var(--bg-secondary); }
.study-hero img { width: 100%; height: 100%; object-fit: cover; }

/* === Section titles === */
.section-title { font-size: 20px; font-weight: 700; margin-bottom: 14px; margin-top: 36px;
  background: linear-gradient(90deg, var(--text) 70%, var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* === Prose === */
.prose { font-size: 15px; color: var(--text-secondary); line-height: 1.8; }

/* === Screens gallery === */
.screens-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; margin-top: 16px; }
.gallery-item { border-radius: var(--radius); overflow: hidden; background: var(--bg-elevated);
  cursor: pointer; border: 1px solid var(--border); }
.gallery-item img { width: 100%; aspect-ratio: 16/10; object-fit: cover; transition: transform 0.3s ease; }
.gallery-item:hover img { transform: scale(1.04); }

/* === Lightbox === */
.lightbox {
  display: none; position: fixed; inset: 0; z-index: 999;
  background: rgba(0,0,0,0.95); align-items: center; justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 92vw; max-height: 90vh; border-radius: var(--radius); box-shadow: var(--shadow); }
.lightbox-close {
  position: fixed; top: 20px; right: 24px;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(139,92,246,0.2); color: #fff;
  border: 1px solid rgba(139,92,246,0.4); cursor: pointer; font-size: 20px;
  display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.lightbox-close:hover { background: var(--accent); }

/* === Modal === */
.modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.75); backdrop-filter: blur(6px);
  align-items: center; justify-content: center; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 20px; width: 100%; max-width: 820px;
  max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow), var(--glow);
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: var(--bg-card); z-index: 1;
}
.modal-header h3 { font-size: 16px; font-weight: 600; }
.modal-close { background: none; border: none; color: var(--text-secondary); cursor: pointer; font-size: 22px; }
.modal-close:hover { color: var(--accent); }
.modal-body { padding: 24px; }

/* === Admin table === */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; }
thead th {
  padding: 12px 16px; text-align: left; font-size: 11px;
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-muted); background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
tbody td { padding: 13px 16px; font-size: 14px; border-bottom: 1px solid var(--border); }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: rgba(139,92,246,0.04); }
.actions-cell { display: flex; gap: 6px; align-items: center; }

/* === Prototype link === */
.proto-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px; border-radius: var(--radius);
  background: rgba(139,92,246,0.12); color: var(--accent);
  border: 1px solid rgba(139,92,246,0.3); font-size: 14px; font-weight: 500;
  transition: var(--transition); margin-top: 16px;
}
.proto-link:hover { background: var(--accent); color: #fff; box-shadow: var(--glow); }

/* === Proto section === */
.proto-section {
  background: linear-gradient(135deg, rgba(139,92,246,0.08), rgba(6,182,212,0.05));
  border-radius: var(--radius-lg); padding: 24px;
  text-align: center; border: 1px solid rgba(139,92,246,0.2); margin-top: 32px;
}

/* === Empty state === */
.empty-state { text-align: center; padding: 60px 20px; }
.empty-state .empty-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.4; }
.empty-state h3 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }
.empty-state p { color: var(--text-secondary); font-size: 14px; }

/* === Stats bar === */
.stats-bar { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 16px 20px; flex: 1; min-width: 130px;
  position: relative; overflow: hidden;
}
.stat-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.stat-card .stat-value { font-size: 28px; font-weight: 800; line-height: 1; margin-bottom: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-card .stat-label { font-size: 12px; color: var(--text-muted); }

/* === Footer === */
.site-footer { border-top: 1px solid var(--border); padding: 20px 24px; margin-top: auto;
  background: rgba(8,8,18,0.5); }
.footer-inner { width: 100%; padding: 0 32px; font-size: 13px; color: var(--text-muted); text-align: center; }

/* === Divider === */
.divider { height: 1px; background: var(--border); margin: 24px 0; }

/* === Tags === */
.tags-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.tag {
  padding: 3px 10px; border-radius: 20px; font-size: 12px;
  background: rgba(139,92,246,0.08); color: var(--text-secondary);
  border: 1px solid rgba(139,92,246,0.15); transition: var(--transition);
}
.tag:hover { background: rgba(139,92,246,0.2); color: var(--accent); }

/* === Spinner === */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* === Glow pulse on logo === */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 8px rgba(139,92,246,0.4); }
  50%       { box-shadow: 0 0 20px rgba(139,92,246,0.7), 0 0 40px rgba(6,182,212,0.2); }
}
.logo-mark { animation: glowPulse 3s ease-in-out infinite; }

/* === Responsive === */
@media (max-width: 768px) {
  .nav-center { display: none; }
  .studies-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .page, .page-narrow { padding: 24px 16px; }
  .footer-inner { padding: 0 16px; }
}