/* ============================================================
   track.dealix.ai — Stylesheet
   State-of-the-art: glassmorphism, dark/light auto, fluid type
   ============================================================
   No external fonts / CSS frameworks. Pure CSS + system fonts.
   Reasons:
     - Zero supply-chain risk (no third-party CSS pinned)
     - Faster TTFB (no extra DNS / connect roundtrips)
     - CSP-clean (no 'unsafe-inline' needed)
   ============================================================ */

:root {
  /* Dark palette (default) */
  --bg: #0a0e1a;
  --bg-elev: #11162a;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e8ecf4;
  --text-muted: #9aa3b8;
  --text-dim: #6b7388;
  --accent: #7c5cff;
  --accent-2: #22d3ee;
  --accent-glow: rgba(124, 92, 255, 0.4);
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --chip-bg: rgba(124, 92, 255, 0.12);
  --chip-bg-active: linear-gradient(135deg, #7c5cff, #22d3ee);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 24px 60px rgba(124, 92, 255, 0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1280px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "SF Pro Display", Roboto, Inter, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

[data-theme="light"], body[data-theme="light"] {
  --bg: #f7f7f9;
  --bg-elev: #ffffff;
  --bg-card: rgba(0, 0, 0, 0.02);
  --bg-card-hover: rgba(0, 0, 0, 0.04);
  --border: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.16);
  --text: #0a0e1a;
  --text-muted: #4a5165;
  --text-dim: #6b7388;
  --accent-glow: rgba(124, 92, 255, 0.2);
  --chip-bg: rgba(124, 92, 255, 0.1);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 24px 60px rgba(124, 92, 255, 0.1);
}

@media (prefers-color-scheme: light) {
  body[data-theme="auto"] {
    --bg: #f7f7f9;
    --bg-elev: #ffffff;
    --bg-card: rgba(0, 0, 0, 0.02);
    --bg-card-hover: rgba(0, 0, 0, 0.04);
    --border: rgba(0, 0, 0, 0.08);
    --border-strong: rgba(0, 0, 0, 0.16);
    --text: #0a0e1a;
    --text-muted: #4a5165;
    --text-dim: #6b7388;
    --accent-glow: rgba(124, 92, 255, 0.2);
    --chip-bg: rgba(124, 92, 255, 0.1);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 24px 60px rgba(124, 92, 255, 0.1);
  }
}

/* ---------- Reset + base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 40% at 50% -10%, var(--accent-glow), transparent 60%),
    radial-gradient(ellipse 60% 30% at 90% 110%, rgba(34, 211, 238, 0.1), transparent 50%);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: var(--accent-2); text-decoration: none; transition: color var(--transition); }
a:hover, a:focus-visible { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
input, select { font: inherit; color: inherit; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Accessibility helpers ---------- */
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; top: -40px; left: 8px;
  background: var(--accent); color: white;
  padding: 8px 16px; border-radius: var(--radius-sm);
  z-index: 100; transition: top var(--transition);
}
.skip-link:focus { top: 8px; }

/* ---------- Layout ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-5);
}
@media (min-width: 768px) {
  .container { padding: 0 var(--space-6); }
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border-bottom: 1px solid var(--border);
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  gap: var(--space-4);
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.logo:hover, .logo:focus-visible { text-decoration: none; }
.logo-text { font-size: 1.125rem; }
.logo-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.header-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  color: var(--text-muted);
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--success) 25%, transparent);
  animation: pulse 2s ease-in-out infinite;
}
.status-pill[data-stale="true"] .status-dot {
  background: var(--warning);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--warning) 25%, transparent);
}
.status-pill[data-error="true"] .status-dot {
  background: var(--danger);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 25%, transparent);
  animation: none;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.theme-toggle {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition);
}
.theme-toggle:hover { background: var(--bg-card-hover); color: var(--text); }

/* ---------- Hero ---------- */
.hero {
  padding: var(--space-7) 0 var(--space-6);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 var(--space-4);
}
.hero-accent {
  display: block;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 1.0625rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

/* ---------- Filters ---------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-5);
}
.filter-chips {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.chip {
  padding: var(--space-2) var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition);
}
.chip:hover { background: var(--bg-card-hover); color: var(--text); }
.chip.is-active {
  background: var(--chip-bg-active);
  color: white;
  border-color: transparent;
  box-shadow: var(--shadow-sm);
}

.filter-controls {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
}

.search-wrap, .select-wrap {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  transition: border-color var(--transition);
}
.search-wrap:focus-within, .select-wrap:focus-within {
  border-color: var(--accent);
  color: var(--text);
}
.search-wrap input {
  background: none; border: none; outline: none;
  width: 220px; padding: 4px 0;
  color: var(--text);
}
.search-wrap input::placeholder { color: var(--text-dim); }
.select-wrap select {
  background: none; border: none; outline: none;
  padding: 4px 0; padding-right: 4px;
  -webkit-appearance: none; appearance: none;
  cursor: pointer;
  color: var(--text);
}
.select-wrap option { background: var(--bg-elev); color: var(--text); }

/* ---------- Results ---------- */
.result-count {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: var(--space-4);
}

.grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

/* ---------- Cards ---------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, var(--accent-glow));
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-md);
}
.card:hover::before { opacity: 0.5; }

.card-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 1;
}
.card-logo {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  background: white;
  padding: 8px;
  display: grid; place-items: center;
  flex-shrink: 0;
  border: 1px solid var(--border);
}
.card-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.card-title-block {
  flex: 1; min-width: 0;
}
.card-title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.card-rating {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 600;
}
.card-rating .star { color: #fbbf24; }

.tag-badge {
  display: inline-flex;
  padding: 3px var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.tag-badge[data-tag="crypto"] {
  background: rgba(124, 92, 255, 0.15);
  color: #a78bfa;
}
.tag-badge[data-tag="fiat"] {
  background: rgba(34, 211, 238, 0.12);
  color: #67e8f9;
}

.welcome-bonus {
  background: linear-gradient(135deg, var(--bg-card-hover), transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 1;
}
.bonus-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: var(--space-2);
}
.bonus-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 1;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat-label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}
.stat-value {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
}

.card-foot {
  margin-top: auto;
  display: flex;
  gap: var(--space-2);
  align-items: center;
  position: relative;
  z-index: 1;
}
.btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: opacity var(--transition), transform var(--transition);
}
.btn:hover, .btn:focus-visible {
  opacity: 0.92;
  text-decoration: none;
  color: white;
  transform: translateY(-1px);
}
.btn-secondary {
  flex: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: var(--space-3);
}
.btn-secondary:hover {
  background: var(--bg-card-hover);
  color: var(--text);
}

/* ---------- Skeleton loader ---------- */
.skeleton {
  background: linear-gradient(90deg,
    var(--bg-card) 0%,
    var(--bg-card-hover) 50%,
    var(--bg-card) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  min-height: 320px;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---------- Empty / Error states ---------- */
.empty-state, .error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-8) var(--space-5);
  text-align: center;
  color: var(--text-muted);
}
.error-state h2 {
  margin: 0;
  font-size: 1.25rem;
  color: var(--text);
}
.error-state .btn {
  flex: 0;
  min-width: 140px;
}

/* ---------- Footer ---------- */
.site-footer {
  margin-top: var(--space-8);
  padding: var(--space-7) 0 var(--space-6);
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text-muted);
  font-size: 0.875rem;
}
.disclaimer {
  margin: 0 0 var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.2);
  border-radius: var(--radius-md);
  color: var(--text);
}
.footer-meta { margin: 0 0 var(--space-3); }
.footer-meta .dot { color: var(--text-dim); margin: 0 var(--space-2); }
.build-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ---------- Reduced motion respect ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Print ---------- */
@media print {
  .site-header, .filters, .site-footer { display: none; }
  .card { break-inside: avoid; border: 1px solid #ccc; }
}