/* ═══════════════════════════════════════════════════════════════════════
   INDEX LAB — Storefront Stylesheet
   CryptoForge Dark Industrial Theme — Store #9
   ═══════════════════════════════════════════════════════════════════════ */

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

/* --- CSS Variables --- */
:root {
  --cf-primary: #FF6B00;
  --cf-primary-dim: #CC5500;
  --cf-primary-glow: rgba(255, 107, 0, 0.3);
  --cf-secondary: #1A1A2E;
  --cf-accent: #FFD700;
  --cf-accent-dim: #CCAA00;
  --cf-bg: #0D0D1A;
  --cf-bg-deep: #080812;
  --cf-surface: #141420;
  --cf-surface-2: #1E1E2E;
  --cf-surface-3: #252538;
  --cf-border: #2a2a3a;
  --cf-border-light: #3a3a4a;
  --cf-text: #E0E0E0;
  --cf-text-muted: #8888aa;
  --cf-text-dim: #555577;
  --cf-success: #00E676;
  --cf-warning: #FF9100;
  --cf-error: #FF1744;
  --cf-radius: 12px;
  --cf-radius-sm: 8px;
  --cf-radius-xs: 4px;
  --cf-font-heading: 'JetBrains Mono', monospace;
  --cf-font-body: 'Inter', sans-serif;
  --cf-font-accent: 'Space Grotesk', sans-serif;
}

/* --- Base --- */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--cf-font-body);
  background: var(--cf-bg);
  color: var(--cf-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ═══════════════════════════════════════════════════════════════════════
   Navigation
   ═══════════════════════════════════════════════════════════════════════ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 13, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--cf-border);
}

.nav__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--cf-text);
}

.nav__logo-icon {
  font-size: 24px;
  color: var(--cf-primary);
}

.nav__logo-text {
  font-family: var(--cf-font-heading);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 2px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  color: var(--cf-text-muted);
  text-decoration: none;
  font-size: 14px;
  font-family: var(--cf-font-accent);
  font-weight: 500;
  transition: color 0.2s;
}

.nav__link:hover {
  color: var(--cf-primary);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cf-text);
  transition: 0.2s;
}

/* ═══════════════════════════════════════════════════════════════════════
   Buttons
   ═══════════════════════════════════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--cf-font-accent);
  font-weight: 600;
  font-size: 14px;
  padding: 12px 28px;
  border-radius: var(--cf-radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn--primary {
  background: var(--cf-primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--cf-primary-dim);
  box-shadow: 0 0 20px var(--cf-primary-glow);
}

.btn--ghost {
  background: transparent;
  color: var(--cf-text-muted);
  border: 1px solid var(--cf-border);
}

.btn--ghost:hover {
  border-color: var(--cf-text);
  color: var(--cf-text);
}

.btn--sm {
  padding: 8px 18px;
  font-size: 13px;
}

.btn--lg {
  padding: 16px 36px;
  font-size: 16px;
}

.btn--full {
  width: 100%;
}

/* ═══════════════════════════════════════════════════════════════════════
   Hero
   ═══════════════════════════════════════════════════════════════════════ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 107, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 107, 0, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black, transparent);
  pointer-events: none;
}

.hero__container {
  position: relative;
  max-width: 800px;
}

.hero__badge {
  display: inline-block;
  font-family: var(--cf-font-heading);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cf-primary);
  border: 1px solid var(--cf-primary);
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero__title {
  font-family: var(--cf-font-heading);
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero__highlight {
  background: linear-gradient(135deg, var(--cf-primary), var(--cf-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 18px;
  color: var(--cf-text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__stat-value {
  font-family: var(--cf-font-heading);
  font-size: 32px;
  font-weight: 700;
  color: var(--cf-primary);
}

.hero__stat-label {
  font-size: 12px;
  color: var(--cf-text-dim);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 4px;
}

.hero__cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ═══════════════════════════════════════════════════════════════════════
   Section Layout
   ═══════════════════════════════════════════════════════════════════════ */

.products,
.bundles,
.features,
.free-tools,
.faq,
.cross-sell {
  padding: 100px 0;
}

.bundles,
.faq {
  background: var(--cf-bg-deep);
}

.section__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section__title {
  font-family: var(--cf-font-heading);
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}

.section__subtitle {
  text-align: center;
  color: var(--cf-text-muted);
  max-width: 600px;
  margin: 0 auto 48px;
  font-size: 16px;
}

/* ═══════════════════════════════════════════════════════════════════════
   Product Cards
   ═══════════════════════════════════════════════════════════════════════ */

.products__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.product-card {
  position: relative;
  background: var(--cf-surface);
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.2s;
}

.product-card:hover {
  border-color: var(--cf-primary);
  box-shadow: 0 0 24px var(--cf-primary-glow);
  transform: translateY(-2px);
}

.product-card__tag {
  display: inline-block;
  font-family: var(--cf-font-heading);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: var(--cf-radius-xs);
  margin-bottom: 12px;
  width: fit-content;
  background: rgba(255, 107, 0, 0.15);
  color: var(--cf-primary);
}

/* Tag color variants based on content — applied via JS or manually */
.product-card[data-product="index-dashboard"] .product-card__tag,
.product-card[data-product="basket-creator"] .product-card__tag {
  background: rgba(0, 230, 118, 0.15);
  color: var(--cf-success);
}

.product-card[data-product="portfolio-analytics"] .product-card__tag,
.product-card[data-product="compliance-checker"] .product-card__tag {
  background: rgba(0, 212, 255, 0.15);
  color: #00d4ff;
}

.product-card[data-product="rebalance-engine"] .product-card__tag {
  background: rgba(156, 100, 255, 0.15);
  color: #9c64ff;
}

.product-card__title {
  font-family: var(--cf-font-heading);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-card__desc {
  color: var(--cf-text-muted);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.product-card__features {
  list-style: none;
  margin-bottom: 20px;
  flex-grow: 1;
}

.product-card__features li {
  position: relative;
  padding: 4px 0 4px 18px;
  font-size: 12px;
  color: var(--cf-text-muted);
  line-height: 1.5;
}

.product-card__features li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--cf-success);
  font-weight: bold;
  font-size: 11px;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--cf-border);
}

.product-card__price {
  font-family: var(--cf-font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--cf-primary);
}

/* ═══════════════════════════════════════════════════════════════════════
   Bundle Cards
   ═══════════════════════════════════════════════════════════════════════ */

.bundles__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.bundle-card {
  position: relative;
  background: var(--cf-surface);
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 32px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.bundle-card:hover {
  border-color: var(--cf-primary);
  box-shadow: 0 0 30px var(--cf-primary-glow);
}

.bundle-card--featured {
  border-color: var(--cf-accent);
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.15);
}

.bundle-card__badge {
  position: absolute;
  top: -12px;
  left: 24px;
  background: linear-gradient(135deg, var(--cf-accent), var(--cf-primary));
  color: #fff;
  font-family: var(--cf-font-heading);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 4px 14px;
  border-radius: 20px;
}

.bundle-card__header {
  margin-bottom: 12px;
}

.bundle-card__title {
  font-family: var(--cf-font-heading);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.bundle-card__pricing {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.bundle-card__price {
  font-family: var(--cf-font-heading);
  font-size: 36px;
  font-weight: 800;
  color: var(--cf-primary);
}

.bundle-card__original {
  font-size: 18px;
  color: var(--cf-text-dim);
  text-decoration: line-through;
}

.bundle-card__save {
  font-family: var(--cf-font-heading);
  font-size: 12px;
  font-weight: 700;
  color: var(--cf-success);
  background: rgba(0, 230, 118, 0.12);
  padding: 3px 10px;
  border-radius: 12px;
}

.bundle-card__desc {
  color: var(--cf-text-muted);
  font-size: 14px;
  margin-bottom: 20px;
  line-height: 1.6;
}

.bundle-card__products {
  list-style: none;
  margin-bottom: 24px;
}

.bundle-card__products li {
  padding: 8px 0;
  border-bottom: 1px solid var(--cf-border);
  font-size: 14px;
  display: flex;
  align-items: center;
}

.bundle-card__products li:last-child {
  border-bottom: none;
}

.bundle-card__check {
  color: var(--cf-success);
  font-weight: bold;
  margin-right: 10px;
  flex-shrink: 0;
}

.bundle-card__val {
  margin-left: auto;
  color: var(--cf-text-dim);
  font-family: var(--cf-font-heading);
  font-size: 12px;
}

/* ═══════════════════════════════════════════════════════════════════════
   Feature Cards
   ═══════════════════════════════════════════════════════════════════════ */

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--cf-surface);
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 32px;
  transition: border-color 0.3s;
}

.feature-card:hover {
  border-color: var(--cf-primary);
}

.feature-card__icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.feature-card__title {
  font-family: var(--cf-font-heading);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card__desc {
  color: var(--cf-text-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════════════════
   Free Tools
   ═══════════════════════════════════════════════════════════════════════ */

.free-tools__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.free-tool-card {
  background: var(--cf-surface);
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 28px;
  text-align: center;
  transition: border-color 0.3s;
}

.free-tool-card:hover {
  border-color: var(--cf-primary);
}

.free-tool-card__title {
  font-family: var(--cf-font-heading);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.free-tool-card__desc {
  color: var(--cf-text-muted);
  font-size: 14px;
  margin-bottom: 20px;
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════════════════
   FAQ
   ═══════════════════════════════════════════════════════════════════════ */

.faq__list {
  max-width: 760px;
  margin: 0 auto;
}

.faq__item {
  border-bottom: 1px solid var(--cf-border);
}

.faq__item:last-child {
  border-bottom: none;
}

.faq__question {
  font-family: var(--cf-font-accent);
  font-size: 15px;
  font-weight: 600;
  color: var(--cf-text);
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color 0.2s;
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::after {
  content: "+";
  font-family: var(--cf-font-heading);
  font-size: 20px;
  color: var(--cf-text-dim);
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform 0.2s, color 0.2s;
}

.faq__item[open] .faq__question::after {
  content: "\2212";
  color: var(--cf-primary);
}

.faq__question:hover {
  color: var(--cf-primary);
}

.faq__answer {
  color: var(--cf-text-muted);
  font-size: 14px;
  line-height: 1.7;
  padding: 0 0 20px;
}

.faq__answer code {
  font-family: var(--cf-font-heading);
  font-size: 13px;
  background: var(--cf-surface-2);
  padding: 2px 6px;
  border-radius: var(--cf-radius-xs);
  color: var(--cf-primary);
}

/* ═══════════════════════════════════════════════════════════════════════
   Cross-sell
   ═══════════════════════════════════════════════════════════════════════ */

.cross-sell__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.cross-sell-card {
  background: var(--cf-surface);
  border: 1px solid var(--cf-border);
  border-radius: var(--cf-radius);
  padding: 28px;
  text-decoration: none;
  color: var(--cf-text);
  transition: border-color 0.3s, transform 0.2s;
  display: block;
}

.cross-sell-card:hover {
  border-color: var(--cf-primary);
  transform: translateY(-2px);
}

.cross-sell-card__badge {
  display: inline-block;
  font-family: var(--cf-font-heading);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--cf-accent);
  background: rgba(255, 215, 0, 0.12);
  padding: 3px 10px;
  border-radius: var(--cf-radius-xs);
  margin-bottom: 12px;
}

.cross-sell-card__title {
  font-family: var(--cf-font-heading);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.cross-sell-card__desc {
  color: var(--cf-text-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════════════════
   Footer
   ═══════════════════════════════════════════════════════════════════════ */

.footer {
  background: var(--cf-bg-deep);
  border-top: 1px solid var(--cf-border);
  padding: 60px 0 32px;
}

.footer__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 48px;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__logo {
  font-family: var(--cf-font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--cf-text);
}

.footer__tagline {
  color: var(--cf-text-muted);
  font-size: 14px;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__col-title {
  font-family: var(--cf-font-heading);
  font-size: 13px;
  color: var(--cf-text);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.footer__col a {
  color: var(--cf-text-muted);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.footer__col a:hover {
  color: var(--cf-primary);
}

.footer__bottom {
  grid-column: 1 / -1;
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--cf-border);
  color: var(--cf-text-dim);
  font-size: 13px;
}

.footer__bottom p + p {
  margin-top: 4px;
}

/* ═══════════════════════════════════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  /* Nav */
  .nav__links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--cf-bg);
    border-bottom: 1px solid var(--cf-border);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
  }

  .nav__links.open {
    display: flex;
  }

  .nav__mobile-toggle {
    display: flex;
  }

  .nav__actions .btn {
    display: none;
  }

  /* Hero */
  .hero {
    padding: 100px 16px 60px;
  }

  .hero__title {
    font-size: clamp(32px, 8vw, 48px);
  }

  .hero__stats {
    gap: 24px;
  }

  .hero__cta {
    flex-direction: column;
    align-items: center;
  }

  /* Products */
  .products__grid {
    grid-template-columns: 1fr;
  }

  /* Bundles */
  .bundles__grid {
    grid-template-columns: 1fr;
  }

  /* Features */
  .features__grid {
    grid-template-columns: 1fr;
  }

  /* Free Tools */
  .free-tools__grid {
    grid-template-columns: 1fr;
  }

  /* Cross-sell */
  .cross-sell__grid {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer__container {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__links {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .hero__stat-value {
    font-size: 24px;
  }

  .hero__stat-label {
    font-size: 10px;
  }

  .section__title {
    font-size: 28px;
  }

  .bundle-card__price {
    font-size: 28px;
  }

  .product-card__price {
    font-size: 18px;
  }
}

/* ═══════════════════════════════════════════════════════════════════════
   Animations
   ═══════════════════════════════════════════════════════════════════════ */

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

.animate-in {
  animation: fadeInUp 0.6s ease-out forwards;
}