/* MobiTrendz — GitHub Pages static site */

:root {
  --bg-deep: #060d18;
  --bg-surface: #0c1629;
  --bg-card: #111d33;
  --bg-card-hover: #152440;
  --border: rgba(100, 180, 255, 0.12);
  --border-strong: rgba(100, 180, 255, 0.25);
  --text-primary: #f0f6ff;
  --text-secondary: #94a8c4;
  --text-muted: #647896;
  --accent: #3b9eff;
  --accent-bright: #5cb8ff;
  --accent-glow: rgba(59, 158, 255, 0.35);
  --gradient-hero: linear-gradient(135deg, #060d18 0%, #0a1a35 45%, #0d2247 100%);
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "Plus Jakarta Sans", var(--font-sans);
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px var(--accent-glow);
  --nav-height: 72px;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent-bright);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #fff;
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

/* ── Navigation ── */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(6, 13, 24, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--text-primary);
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  background: var(--accent);
  color: #fff !important;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: background 0.2s, box-shadow 0.2s;
}

.nav-cta:hover {
  background: var(--accent-bright);
  box-shadow: var(--shadow-glow);
  color: #fff !important;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
}

/* ── Hero ── */

.hero {
  position: relative;
  padding-top: calc(var(--nav-height) + 3rem);
  padding-bottom: 4rem;
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(59, 158, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(59, 158, 255, 0.06) 0%, transparent 40%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-bright);
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--accent-bright), #a8d4ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 52ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

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

.btn-primary:hover {
  background: var(--accent-bright);
  box-shadow: var(--shadow-glow);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
}

.hero-visual {
  position: relative;
}

.hero-banner {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow), var(--shadow-glow);
  border: 1px solid var(--border);
}

.hero-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
  z-index: -1;
  filter: blur(40px);
}

/* ── Pillars ── */

.pillars {
  padding: 5rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--text-secondary);
  max-width: 56ch;
  margin-inline: auto;
  font-size: 1.05rem;
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
}

.pillar-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.pillar-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59, 158, 255, 0.12);
  border-radius: 10px;
  margin-bottom: 1rem;
  color: var(--accent-bright);
}

.pillar-card h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.pillar-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ── About ── */

.about {
  padding: 5rem 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--accent-bright);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.about-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-logo-wrap {
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 280px;
  margin-inline: auto;
  aspect-ratio: 1;
  padding: 0;
  line-height: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.about-logo-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  display: block;
  object-fit: cover;
  object-position: center;
}

/* ── Templates ── */

.templates {
  padding: 5rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
}

.template-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.template-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.template-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.template-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.template-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  width: fit-content;
}

.badge-backend {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
}

.badge-frontend {
  background: rgba(59, 158, 255, 0.15);
  color: var(--accent-bright);
}

.badge-mobile {
  background: rgba(168, 85, 247, 0.15);
  color: #c084fc;
}

.badge-beta {
  background: rgba(251, 191, 36, 0.12);
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.25);
}

.template-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.35;
}

.template-card h3 a {
  color: var(--text-primary);
}

.template-card h3 a:hover {
  color: var(--accent-bright);
}

.template-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  flex: 1;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tech-tag {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.6rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
}

.template-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.template-features li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-left: 1.25rem;
  position: relative;
}

.template-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.template-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.template-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-bright);
}

.template-link:hover {
  color: #fff;
}

/* ── Documentation ── */

.docs {
  padding: 5rem 0;
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.doc-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  color: var(--text-primary);
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.doc-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  color: var(--text-primary);
}

.doc-tool {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-bright);
}

.doc-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}

.doc-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  flex: 1;
  line-height: 1.55;
}

.doc-link-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-bright);
  margin-top: 0.25rem;
}

/* ── CTA ── */

.cta {
  padding: 5rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
}

.cta-box {
  background: linear-gradient(135deg, #0d2247 0%, #152a55 50%, #0d2247 100%);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, var(--accent-glow) 0%, transparent 60%);
  pointer-events: none;
}

.cta-box h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
  position: relative;
}

.cta-box p {
  color: var(--text-secondary);
  max-width: 48ch;
  margin: 0 auto 1.75rem;
  position: relative;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  position: relative;
}

/* ── Footer ── */

.site-footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--border);
  background: var(--bg-deep);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.75rem;
  max-width: 36ch;
}

.footer-brand .brand {
  margin-bottom: 0.25rem;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-col a:hover {
  color: var(--accent-bright);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-tagline {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── Responsive ── */

@media (max-width: 1024px) {
  .pillar-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .template-grid,
  .docs-grid {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin-inline: auto;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(6, 13, 24, 0.97);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 0.85rem 1.5rem;
  }

  .hero-grid,
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-visual {
    order: -1;
  }

  .pillar-grid {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}