/* SheetStackStudio — Global Styles */
:root {
  --navy: #1B2A4A;
  --navy-light: #243560;
  --green: #10B981;
  --green-hover: #059669;
  --white: #FFFFFF;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-900: #111827;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1120px;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 25px rgba(0,0,0,.1), 0 4px 10px rgba(0,0,0,.06);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--gray-700);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* ── Layout ── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ── Nav ── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max-width); margin: 0 auto; padding: 16px 24px;
}
.nav-logo {
  font-size: 1.25rem; font-weight: 700; color: var(--navy);
  display: flex; align-items: center; gap: 8px;
}
.nav-logo span { color: var(--green); }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a {
  font-size: .9rem; font-weight: 500; color: var(--gray-600);
  transition: color .15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--navy); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--green); color: var(--white);
  padding: 10px 20px; border-radius: 8px;
  font-size: .875rem; font-weight: 600;
  transition: background .15s;
}
.nav-cta:hover { background: var(--green-hover); }

/* Mobile nav */
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle svg { width: 24px; height: 24px; color: var(--navy); }

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links, .nav .nav-cta { display: none; }
  .nav-inner.open .nav-links {
    display: flex; flex-direction: column; gap: 16px;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--white); padding: 24px;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
  }
  .nav-inner.open .nav-cta {
    display: inline-flex; position: absolute;
    top: calc(100% + 140px); left: 24px;
  }
}

/* ── Hero ── */
.hero {
  padding: 80px 0 64px;
  text-align: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--gray-100); color: var(--gray-600);
  padding: 6px 14px; border-radius: 20px;
  font-size: .8rem; font-weight: 500;
  margin-bottom: 24px;
}
.hero-badge span { color: var(--green); }
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800; color: var(--navy);
  line-height: 1.15; letter-spacing: -0.02em;
  max-width: 720px; margin: 0 auto 20px;
}
.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--gray-500); max-width: 580px; margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 10px;
  font-size: 1rem; font-weight: 600;
  transition: all .15s; border: none; cursor: pointer;
}
.btn-primary { background: var(--green); color: var(--white); }
.btn-primary:hover { background: var(--green-hover); transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-secondary { background: var(--white); color: var(--navy); border: 1.5px solid var(--gray-200); }
.btn-secondary:hover { border-color: var(--gray-400); }

/* ── Section ── */
.section { padding: 80px 0; }
.section-alt { background: var(--gray-50); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700; color: var(--navy);
  margin-bottom: 12px;
}
.section-header p { color: var(--gray-500); max-width: 540px; margin: 0 auto; font-size: 1.05rem; }

/* ── Template Cards ── */
.templates-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.template-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.template-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.template-card-img {
  position: relative; background: var(--gray-100);
  aspect-ratio: 16/10; overflow: hidden;
}
.template-card-img img { width: 100%; height: 100%; object-fit: cover; }
.template-card-badge {
  position: absolute; top: 12px; right: 12px;
  background: var(--green); color: var(--white);
  padding: 4px 10px; border-radius: 6px;
  font-size: .75rem; font-weight: 700;
}
.template-card-badge.coming-soon {
  background: var(--navy);
}
.template-card-body { padding: 24px; }
.template-card-body h3 { font-size: 1.15rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.template-card-body p { font-size: .92rem; color: var(--gray-500); margin-bottom: 16px; line-height: 1.6; }
.template-card-footer { display: flex; align-items: center; justify-content: space-between; }
.template-price { font-size: 1.15rem; font-weight: 700; color: var(--navy); }
.template-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--green); font-weight: 600; font-size: .9rem;
  transition: gap .15s;
}
.template-link:hover { gap: 10px; }

/* ── Features / Trust ── */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}
.feature-item { text-align: center; padding: 24px; }
.feature-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(16,185,129,.1);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; font-size: 1.4rem;
}
.feature-item h3 { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.feature-item p { font-size: .9rem; color: var(--gray-500); }

/* ── CTA Banner ── */
.cta-banner {
  background: var(--navy); color: var(--white);
  border-radius: var(--radius); padding: 56px 40px;
  text-align: center;
}
.cta-banner h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; margin-bottom: 12px; }
.cta-banner p { color: rgba(255,255,255,.7); max-width: 480px; margin: 0 auto 28px; font-size: 1.05rem; }

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--gray-200);
  padding: 40px 0;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.footer-copy { font-size: .85rem; color: var(--gray-400); }
.footer-links { display: flex; gap: 24px; list-style: none; }
.footer-links a { font-size: .85rem; color: var(--gray-400); transition: color .15s; }
.footer-links a:hover { color: var(--gray-600); }

/* ── About Page ── */
.about-hero { padding: 80px 0 40px; }
.about-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800; color: var(--navy);
  margin-bottom: 24px;
}
.about-content { max-width: 680px; }
.about-content p {
  font-size: 1.05rem; line-height: 1.8; color: var(--gray-600);
  margin-bottom: 20px;
}
.about-content h2 {
  font-size: 1.4rem; font-weight: 700; color: var(--navy);
  margin: 40px 0 16px;
}

/* ── Blog Page ── */
.blog-empty {
  text-align: center; padding: 80px 0;
}
.blog-empty h2 { font-size: 1.5rem; font-weight: 700; color: var(--navy); margin-bottom: 12px; }
.blog-empty p { color: var(--gray-500); }

/* ── Utility ── */
@media (max-width: 640px) {
  .hero { padding: 48px 0 40px; }
  .section { padding: 56px 0; }
  .templates-grid { grid-template-columns: 1fr; }
  .cta-banner { padding: 40px 24px; }
  .footer-inner { flex-direction: column; text-align: center; }
}