/* ============================================
   PDF Editor Website — Style.css
   Color Palette: Red & Dark (Variant A)
   ============================================ */

:root {
  --bg: #0D0D0D;
  --bg-card: #1A1A1A;
  --bg-card2: #141414;
  --accent: #E8232A;
  --accent-hover: #FF4040;
  --accent-light: #FF6B6B;
  --text: #FFFFFF;
  --text-muted: #A0A0A0;
  --text-dim: #666666;
  --border: rgba(255,255,255,0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 40px rgba(232,35,42,0.15);
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ===== HEADER ===== */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  background: rgba(13,13,13,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.logo img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  flex-shrink: 0;
}

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

nav a {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
  transition: color var(--transition);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(232,35,42,0.4);
}

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

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: rgba(13,13,13,0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 24px;
  flex-direction: column;
  gap: 20px;
  z-index: 99;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav .btn { width: 100%; justify-content: center; margin-top: 8px; }

/* ===== SECTIONS ===== */
main { padding-top: 64px; }

section { padding: 96px 24px; }

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

h1, h2, h3 {
  letter-spacing: -0.03em;
  line-height: 1.15;
}

h1 { font-size: clamp(2.4rem, 6vw, 4.2rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; }
h3 { font-size: 1.2rem; font-weight: 700; }

.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }

/* ===== HERO ===== */
.hero {
  padding: 120px 24px 96px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(232,35,42,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232,35,42,0.1);
  border: 1px solid rgba(232,35,42,0.25);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-light);
  margin-bottom: 28px;
}

.hero h1 {
  max-width: 800px;
  margin: 0 auto 24px;
}

.hero h1 span { color: var(--accent); }

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #fff;
  padding: 14px 28px;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 700;
  transition: all var(--transition);
}
.store-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(232,35,42,0.45);
}
.store-btn svg { width: 22px; height: 22px; fill: #fff; flex-shrink: 0; }
.store-btn-text small { display: block; font-size: 0.7rem; font-weight: 400; opacity: 0.85; }
.store-btn-text strong { font-size: 1rem; }

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.hero-stars { color: #FFB800; letter-spacing: 2px; }

/* Hero mockup */
.hero-mockup {
  max-width: 320px;
  margin: 0 auto;
  position: relative;
}
.hero-mockup img {
  width: 100%;
  border-radius: 28px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.06);
}

/* ===== FEATURES ===== */
.features { background: var(--bg-card2); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 56px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover { border-color: rgba(232,35,42,0.25); transform: translateY(-4px); }
.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 52px; height: 52px;
  background: rgba(232,35,42,0.12);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.feature-card h3 { margin-bottom: 10px; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.65; }

/* ===== HOW IT WORKS ===== */
.how { text-align: center; }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  margin-top: 56px;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.step-num {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 20px rgba(232,35,42,0.35);
}

.step h3 { font-size: 1.05rem; }
.step p { color: var(--text-muted); font-size: 0.9rem; text-align: center; max-width: 200px; }

/* ===== PRICING ===== */
.pricing { background: var(--bg-card2); text-align: center; }

.pricing-sub {
  color: var(--text-muted);
  margin-top: 12px;
  font-size: 1rem;
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 56px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  position: relative;
  transition: all var(--transition);
}
.price-card.featured {
  border-color: var(--accent);
  background: linear-gradient(160deg, #1f0a0a, #1a1a1a);
}
.price-badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 50px;
  white-space: nowrap;
}

.price-card h3 { font-size: 1rem; color: var(--text-muted); font-weight: 600; margin-bottom: 16px; }
.price-amount { font-size: 2.8rem; font-weight: 800; letter-spacing: -0.04em; }
.price-amount span { font-size: 1rem; font-weight: 500; color: var(--text-muted); vertical-align: top; margin-top: 10px; display: inline-block; }
.price-period { color: var(--text-dim); font-size: 0.85rem; margin-top: 4px; }
.price-card .btn { width: 100%; justify-content: center; margin-top: 24px; }

/* ===== BLOG ===== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 56px;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.blog-card:hover { border-color: rgba(232,35,42,0.25); transform: translateY(-4px); }

.blog-thumb {
  height: 180px;
  background: linear-gradient(135deg, #1f0606 0%, #2a0a0a 50%, #1a1a1a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}
.blog-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(26,26,26,0.8));
}

.blog-body { padding: 24px; flex: 1; display: flex; flex-direction: column; gap: 12px; }
.blog-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}
.blog-card h3 { font-size: 1.05rem; line-height: 1.4; }
.blog-card p { color: var(--text-muted); font-size: 0.875rem; line-height: 1.65; flex: 1; }
.blog-meta { color: var(--text-dim); font-size: 0.8rem; margin-top: auto; }
.blog-read {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 12px;
  transition: gap var(--transition);
}
.blog-read:hover { gap: 10px; }

/* ===== CTA BANNER ===== */
.cta-banner {
  background: linear-gradient(135deg, #1a0505 0%, #0D0D0D 100%);
  border: 1px solid rgba(232,35,42,0.2);
  border-radius: 24px;
  padding: 72px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin: 0 24px;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(232,35,42,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section { padding: 80px 24px; }
.cta-banner h2 { margin-bottom: 16px; }
.cta-banner p { color: var(--text-muted); margin-bottom: 36px; font-size: 1.05rem; }

/* ===== FOOTER ===== */
footer {
  background: #080808;
  border-top: 1px solid var(--border);
  padding: 56px 24px 32px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
}

.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p { color: var(--text-muted); font-size: 0.875rem; line-height: 1.65; max-width: 240px; }

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a {
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: color var(--transition);
}
.footer-col ul a:hover { color: var(--text); }

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom p { color: var(--text-dim); font-size: 0.8rem; }

/* ===== INNER PAGES ===== */
.page-hero {
  padding: 80px 24px 56px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 12px; }
.page-hero p { color: var(--text-muted); max-width: 560px; margin: 0 auto; }

.page-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 24px 96px;
}
.page-content h2 { font-size: 1.4rem; margin: 36px 0 12px; color: var(--text); }
.page-content h3 { font-size: 1.1rem; margin: 24px 0 8px; }
.page-content p { color: var(--text-muted); margin-bottom: 16px; line-height: 1.75; font-size: 0.95rem; }
.page-content ul { margin: 12px 0 16px 20px; list-style: disc; }
.page-content ul li { color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; margin-bottom: 6px; }
.page-content a { color: var(--accent); text-decoration: underline; }

/* Blog index */
.blog-header { padding: 80px 24px 56px; text-align: center; border-bottom: 1px solid var(--border); }
.blog-section { padding: 56px 24px 96px; }
.blog-section .blog-grid { margin-top: 0; }

/* ===== SUPPORT FORM ===== */
.support-section { padding: 56px 24px 96px; }
.support-inner { max-width: 640px; margin: 0 auto; }
.support-inner h2 { font-size: 1.4rem; margin-bottom: 8px; }
.support-inner p { color: var(--text-muted); margin-bottom: 32px; font-size: 0.95rem; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; color: var(--text-muted); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
  padding: 12px 16px;
  outline: none;
  transition: border-color var(--transition);
  font-family: inherit;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 140px; }
.form-group select { appearance: none; cursor: pointer; }
.support-contact { margin-top: 36px; padding-top: 32px; border-top: 1px solid var(--border); }
.support-contact p { color: var(--text-muted); font-size: 0.875rem; }
.support-contact a { color: var(--accent); }

/* ===== SCROLL ANIMATIONS ===== */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  nav { display: none; }
  .header-cta { display: none; }
  .burger { display: flex; }

  section { padding: 64px 16px; }
  .hero { padding: 88px 16px 64px; }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand { grid-column: 1 / -1; }

  .cta-banner { padding: 48px 24px; margin: 0 16px; }

  .pricing-cards { grid-template-columns: 1fr; max-width: 360px; }

  .blog-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-cta { flex-direction: column; }
  .store-btn { width: 100%; justify-content: center; }
}