/* === SyntaxThreads — Dev humor merch === */

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

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --border: #222222;
  --text-primary: #e5e5e5;
  --text-secondary: #a3a3a3;
  --text-muted: #666666;
  --accent: #00ff41;
  --accent-hover: #33ff66;
  --accent-dim: rgba(0, 255, 65, 0.1);
  --radius: 12px;
  --font-mono: 'Source Code Pro', 'SF Mono', 'Fira Code', ui-monospace, Consolas, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --shadow: 0 2px 8px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
  --transition: 150ms ease;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* === NAV === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-brand {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-brand span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition);
}

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

.nav-shop {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--accent);
  color: #000;
  padding: 0.4rem 1rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  transition: background var(--transition);
}

.nav-shop:hover {
  background: var(--accent-hover);
  color: #000;
}

/* === HERO === */
.hero {
  text-align: center;
  padding: 5rem 1.5rem 3rem;
  max-width: 800px;
  margin: 0 auto;
}

.hero-logo {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -0.03em;
}

.hero-logo .brace {
  color: var(--accent);
}

.hero h2 {
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.hero p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 500px;
  margin: 0 auto 2rem;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #000;
  padding: 0.75rem 2rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition);
}

.hero-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

/* === MAIN === */
.main {
  flex: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
  width: 100%;
}

/* === SECTION HEADERS === */
.section-title {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  margin-bottom: 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.section-title .accent {
  color: var(--accent);
}

/* === DESIGN GRID === */
.design-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.design-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-decoration: none;
  color: inherit;
  display: block;
}

.design-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(0, 255, 65, 0.05);
  transform: translateY(-2px);
}

.design-card-img {
  background: var(--bg-tertiary);
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.design-card-img svg,
.design-card-img img {
  width: 100%;
  max-height: 280px;
  object-fit: contain;
}

.design-card-body {
  padding: 1rem 1.25rem;
}

.design-card-body h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.design-card-body p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.design-card-body .products {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* === ABOUT === */
.about {
  margin-bottom: 4rem;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.25rem;
}

.about-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.about-card .icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.about-card h3 {
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
}

.about-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* === FOOTER === */
.footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

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

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.75rem;
}

/* === DOWNLOAD BUTTONS === */
.design-card-downloads {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}

.design-card-downloads a {
  display: inline-block;
  background: var(--accent);
  color: #000;
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition);
}

.design-card-downloads a:hover {
  background: var(--accent-hover);
  color: #000;
}

.design-card-downloads a.alt {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.design-card-downloads a.alt:hover {
  background: var(--accent-dim);
  color: var(--accent);
}

/* === RESPONSIVE === */
@media (max-width: 640px) {
  .hero-logo {
    font-size: 2rem;
  }

  .hero h2 {
    font-size: 1.1rem;
  }

  .hero {
    padding: 3rem 1rem 2rem;
  }

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

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

  .nav-links {
    gap: 0.75rem;
  }
}