/* OpenKitMule — Premium Design System */
/* ─────────────────────────────────────────── */

:root {
  --bg: #f8f7f5;
  --bg-soft: #f0eeeb;
  --surface: #ffffff;
  --surface-elevated: #ffffff;
  --text: #0f0e0c;
  --text-2: #5a5855;
  --text-3: #9a9894;
  --border: #e5e3df;
  --border-soft: #eeede9;
  --accent: #0f0e0c;
  --accent-text: #ffffff;
  --accent-warm: #c2410c;
  --accent-warm-soft: #fef3ec;
  --max-w: 840px;
  --radius: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow: 0 1px 2px rgba(15,14,12,0.04), 0 4px 8px rgba(15,14,12,0.02);
  --shadow-elevated: 0 4px 12px rgba(15,14,12,0.06), 0 16px 32px rgba(15,14,12,0.04);
  --shadow-glow: 0 0 40px rgba(15,14,12,0.06);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ── Grid Background ─────────────────── */

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(15,14,12,0.04) 1px, transparent 0);
  background-size: 32px 32px;
  pointer-events: none;
}

/* ── Layout ───────────────────────────── */

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ── Nav ─────────────────────────────── */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248,247,245,0.72);
  backdrop-filter: saturate(180%) blur(24px) brightness(1.04);
  -webkit-backdrop-filter: saturate(180%) blur(24px) brightness(1.04);
  border-bottom: 1px solid rgba(229,227,223,0.5);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  transition: opacity var(--transition);
}

.nav-logo:hover { opacity: 0.7; }

.nav-logo svg {
  color: var(--text);
  transition: transform var(--transition);
}

.nav-logo:hover svg { transform: rotate(12deg) scale(1.05); }

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--transition);
  letter-spacing: -0.01em;
}

.nav-link:hover { color: var(--text); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--surface);
  background: var(--text);
  border-radius: 100px;
  transition: all var(--transition);
  letter-spacing: -0.01em;
}

.nav-cta:hover {
  background: var(--text-2);
  transform: translateY(-1px);
  box-shadow: var(--shadow-elevated);
}

/* ── Hero ────────────────────────────── */

.hero {
  padding: 100px 0 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(194,65,12,0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent-warm);
  background: var(--accent-warm-soft);
  border: 1px solid rgba(194,65,12,0.08);
  border-radius: 100px;
  margin-bottom: 28px;
  letter-spacing: -0.01em;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-warm);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.08;
  background: linear-gradient(180deg, #0f0e0c 0%, #3a3834 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-2);
  margin-top: 16px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero-cta-group {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 32px;
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

.hero-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--surface);
  background: var(--text);
  border-radius: 100px;
  transition: all var(--transition);
  letter-spacing: -0.01em;
  border: none;
  cursor: pointer;
}

.hero-cta-primary:hover {
  background: #2a2825;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(15,14,12,0.15);
}

.hero-cta-primary svg {
  transition: transform var(--transition);
}

.hero-cta-primary:hover svg {
  transform: translateY(2px);
}

.hero-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: all var(--transition);
  letter-spacing: -0.01em;
  cursor: pointer;
}

.hero-cta-secondary:hover {
  background: var(--surface);
  border-color: var(--text-3);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

/* ── Hero Stats ──────────────────────── */

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  margin-top: 56px;
  animation: fadeInUp 0.6s ease-out 0.5s both;
}

.hero-stat {
  text-align: center;
}

.hero-stat .value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.2;
}

.hero-stat .label {
  font-size: 0.75rem;
  color: var(--text-3);
  margin-top: 4px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero-stat-divider {
  width: 1px;
  background: var(--border);
  align-self: stretch;
  margin: 4px 0;
}

/* ── Features ─────────────────────────── */

.features {
  padding: 56px 0 24px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-elevated);
  transform: translateY(-2px);
}

.feature-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  background: var(--bg-soft);
  margin-bottom: 14px;
  font-size: 1.125rem;
}

.feature-title {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.feature-desc {
  font-size: 0.8125rem;
  color: var(--text-3);
  margin-top: 4px;
  line-height: 1.5;
}

/* ── Section Divider ──────────────────── */

.section-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 48px 0 24px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.section-divider::before,
.section-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

/* ── Product List ─────────────────────── */

.product-list {
  padding: 16px 0 80px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.product-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 26px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 50%, rgba(194,65,12,0.03) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.product-card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-elevated);
  transform: translateY(-2px);
}

.product-card:hover::before {
  opacity: 1;
}

.product-card .emoji {
  font-size: 1.75rem;
  line-height: 1;
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  transition: transform var(--transition), background var(--transition);
}

.product-card:hover .emoji {
  transform: scale(1.08);
  background: var(--accent-warm-soft);
}

.product-card .info { flex: 1; min-width: 0; }

.product-card .name {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.product-card .tagline {
  font-size: 0.8125rem;
  color: var(--text-3);
  margin-top: 3px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.product-card .meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.product-card .tag {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-3);
  padding: 3px 10px;
  background: var(--bg-soft);
  border-radius: 100px;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.product-card .tag.hot {
  color: var(--accent-warm);
  background: var(--accent-warm-soft);
}

.product-card .price {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text);
  flex-shrink: 0;
  padding: 6px 16px;
  background: var(--bg-soft);
  border-radius: 100px;
  letter-spacing: -0.01em;
  transition: background var(--transition);
}

.product-card:hover .price {
  background: var(--text);
  color: var(--surface);
}

.product-card .arrow {
  flex-shrink: 0;
  color: var(--text-3);
  transition: transform var(--transition), color var(--transition);
  opacity: 0;
  transform: translateX(-4px);
}

.product-card:hover .arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--text);
}

/* ── Loading ──────────────────────────── */

.loading {
  text-align: center;
  padding: 80px 0;
  color: var(--text-3);
  font-size: 0.875rem;
}

.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--text-3);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Footer ───────────────────────────── */

.footer {
  padding: 48px 0 64px;
  border-top: 1px solid var(--border-soft);
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 12px;
}

.footer-brand-desc {
  font-size: 0.8125rem;
  color: var(--text-3);
  line-height: 1.6;
  max-width: 260px;
}

.footer-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.8125rem;
  color: var(--text-3);
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--text); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
  font-size: 0.75rem;
  color: var(--text-3);
}

.footer-socials {
  display: flex;
  gap: 16px;
  align-items: center;
}

.footer-socials a {
  color: var(--text-3);
  transition: color var(--transition);
}

.footer-socials a:hover { color: var(--text); }

/* ── Animations ─────────────────────────── */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.6s ease-out both;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ─────────────────────────── */

@media (max-width: 640px) {
  .hero { padding: 72px 0 40px; }
  .hero-title { font-size: 2.5rem; }
  .hero-desc { font-size: 1rem; }
  .hero-cta-group { flex-direction: column; align-items: stretch; }
  .hero-cta-primary, .hero-cta-secondary { justify-content: center; }
  .hero-stats { gap: 24px; }
  .hero-stat .value { font-size: 1.375rem; }
  .features-grid { grid-template-columns: 1fr; }
  .product-card { gap: 14px; padding: 18px 20px; }
  .product-card .arrow { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .nav-links { display: none; }
  .nav { justify-content: center; }
}

/* ── Hidden ─────────────────────────────── */

.hidden { display: none !important; }