/* ============================================
   ArcWriter — Dark Theme Design System
   ============================================ */

/* ── CSS Variables ── */

:root {
  --primary: #6C63FF;
  --primary-dark: #5248e0;
  --primary-glow: rgba(108, 99, 255, 0.3);
  --secondary: #FF6B9D;

  --secondary-glow: rgba(255, 107, 157, 0.25);
  --bg: #0A0E1A;
  --bg-alt: #0f1424;
  --bg-card: #131829;
  --bg-card-hover: #1a203a;
  --text: #F0F0F5;
  --text-dim: #8a8fa8;
  --text-muted: #5a5f78;
  --border: #1e2340;
  --border-light: #2a2f50;
  --success: #4ade80;
  --warning: #facc15;
  --error: #f87171;
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;

  --shadow-glow: 0 0 40px rgba(108,99,255,0.12);
  --font-display: 'Inter', -apple-system, sans-serif;
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-mono: 'JetBrains Mono', monospace;
  --nav-height: 72px;
  --max-width: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Logo image */
.nav-logo-img {
  height: 28px;
  width: auto;
  vertical-align: middle;
  margin-right: 8px;
  border-radius: 4px;
}

/* ── Reset ── */
*, *::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-display);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Typography ── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  line-height: 1.2;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
p  { margin-bottom: 1rem; color: var(--text-dim); }
.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 0.75rem;
}
.section-title { margin-bottom: 0.5rem; }
.section-subtitle {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--text-dim);
  max-width: 600px;
}

code, pre { font-family: var(--font-mono); }

/* ── Glow Effects ── */
.glow-primary { text-shadow: 0 0 40px var(--primary-glow); }
.glow-secondary { text-shadow: 0 0 40px var(--secondary-glow); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  min-height: 44px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: clamp(0.9rem, 2vw, 0.95rem);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 20px var(--primary-glow);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  box-shadow: 0 0 30px var(--primary-glow);
  color: #fff;
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-light);
}
.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(108, 99, 255, 0.06);
}
.btn-secondary-glow {
  background: transparent;
  color: var(--secondary);
  border-color: var(--secondary);
  box-shadow: 0 0 20px var(--secondary-glow);
}
.btn-secondary-glow:hover {
  background: var(--secondary);
  color: #fff;
  box-shadow: 0 0 30px var(--secondary-glow);
}
.btn-sm { padding: 8px 20px; font-size: clamp(0.8rem, 2vw, 0.85rem); min-height: 40px; }

/* ── Navbar ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--text);
  text-decoration: none;
}
.nav-logo:hover { color: var(--primary); }
.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-links a {
  padding: 8px 16px;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: clamp(0.85rem, 2vw, 0.9rem);
  font-weight: 500;
  transition: all var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}
.nav-cta { margin-left: 8px; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 12px;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ── Hero Sections ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + 60px) 24px 80px;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.hero-bg .gradient-1 {
  position: absolute;
  top: -20%;
  left: -10%;
  width: 60%;
  height: 60%;
  background: radial-gradient(ellipse, rgba(108,99,255,0.10), transparent 65%);
  border-radius: 50%;
}
.hero-bg .gradient-2 {
  position: absolute;
  bottom: -20%;
  right: -10%;
  width: 50%;
  height: 50%;
  background: radial-gradient(ellipse, rgba(255,107,157,0.08), transparent 65%);
  border-radius: 50%;
}
.hero-bg .grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: rgba(108, 99, 255, 0.1);
  border: 1px solid rgba(108, 99, 255, 0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}
.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
.hero h1 { margin-bottom: 1.5rem; }
.hero p {
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto 2rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.hero-stats {
  display: flex;
  gap: 40px;
  justify-content: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.hero-stat { text-align: center; }
.hero-stat-number {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text);
}
.hero-stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }

/* ── Sections ── */
.section {
  padding: 100px 24px;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-alt { background: var(--bg-alt); }

/* ── USP / Feature Cards Grid ── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
  background: rgba(108,99,255,0.1);
  color: var(--primary);
}
.card h3 { margin-bottom: 0.5rem; font-size: 1.2rem; }
.card p { font-size: 0.9rem; color: var(--text-dim); margin-bottom: 0; }
.card-secondary .card-icon { background: rgba(255,107,157,0.1); color: var(--secondary); }

/* ── Features Detail ── */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
}
.feature-block:nth-child(even) .feature-visual { order: 1; }
.feature-block:nth-child(even) .feature-text { order: 2; }
.feature-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-mockup {
  width: 100%;
  max-width: 480px;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-card-hover));
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  position: relative;
  overflow: hidden;
}
.feature-mockup::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 40%, rgba(108,99,255,0.06), transparent 60%);
}
.feature-mockup-icon {
  font-size: 3rem;
  position: relative;
  z-index: 1;
}
.feature-tag {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(108,99,255,0.12);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}
.feature-text h3 { font-size: 1.6rem; margin-bottom: 0.75rem; }
.feature-text p { font-size: 1rem; }
.feature-list { margin-top: 1.5rem; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 0.9rem;
  color: var(--text-dim);
}
.feature-list li::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
  flex-shrink: 0;
}

/* ── Pricing ── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}
.pricing-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 40px var(--primary-glow);
  background: linear-gradient(180deg, rgba(108,99,255,0.06), var(--bg-card));
}
.pricing-card.featured::before {
  content: 'BELIEBTEST';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  background: var(--primary);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: #fff;
}
.pricing-name {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.pricing-price {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--text);
  margin-bottom: 0.25rem;
}
.pricing-period { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.pricing-description { font-size: 0.9rem; color: var(--text-dim); margin-bottom: 1.5rem; min-height: 3em; }
.pricing-features { text-align: left; margin-bottom: 2rem; flex: 1; }
.pricing-features li {
  padding: 8px 0;
  font-size: 0.85rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features li .check { color: var(--success); font-weight: 700; }
.pricing-features li .cross { color: var(--text-muted); }
.pricing-card .btn { width: 100%; justify-content: center; }

/* ── Contact Form ── */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  max-width: 960px;
  margin: 0 auto;
}
.contact-info h3 { margin-bottom: 1rem; }
.contact-info p { font-size: 0.95rem; margin-bottom: 1.5rem; }
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 1rem;
}
.contact-detail-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(108,99,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}
.contact-detail-label { font-size: 0.8rem; color: var(--text-muted); }
.contact-detail-value { font-size: 0.9rem; color: var(--text); }
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-dim);
}
.form-input, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-display);
  font-size: 0.95rem;
  transition: border-color var(--transition);
  outline: none;
}
.form-input:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108,99,255,0.1);
}
.form-textarea { min-height: 140px; resize: vertical; }
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}
.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  margin-top: 2px;
}

/* ── Legal Pages ── */
.legal-content {
  max-width: 720px;
  margin: 0 auto;
  padding: calc(var(--nav-height) + 60px) 24px 80px;
}
.legal-content h1 { font-size: 2.2rem; margin-bottom: 2rem; }
.legal-content h2 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--text);
}
.legal-content p, .legal-content li {
  font-size: 0.95rem;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}
.legal-content ul { padding-left: 1.5rem; list-style: disc; margin-bottom: 1.5rem; }

/* ── 404 Page ── */
.page-404 {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
}
.page-404 h1 {
  font-size: clamp(6rem, 15vw, 10rem);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.page-404 p { font-size: 1.1rem; max-width: 400px; margin: 1rem auto 2rem; }

/* ── Blog ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}
.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}
.blog-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.blog-card-image {
  height: 200px;
  background: linear-gradient(135deg, var(--bg-card-hover), var(--bg-alt));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  border-bottom: 1px solid var(--border);
}
.blog-card-body { padding: 28px; }
.blog-card-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.blog-card h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.blog-card h3 a { color: var(--text); }
.blog-card h3 a:hover { color: var(--primary); }
.blog-card p { font-size: 0.85rem; color: var(--text-dim); margin-bottom: 0; }
.blog-article {
  max-width: 720px;
  margin: 0 auto;
  padding: calc(var(--nav-height) + 60px) 24px 80px;
}
.blog-article h1 { font-size: 2.4rem; margin-bottom: 0.75rem; }
.blog-article .meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  display: flex;
  gap: 16px;
  align-items: center;
}
.blog-article .meta .tag {
  padding: 2px 10px;
  background: rgba(108,99,255,0.1);
  border-radius: 4px;
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}
.blog-article h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  color: var(--text);
}
.blog-article p, .blog-article li {
  font-size: 1rem;
  color: var(--text-dim);
  margin-bottom: 1rem;
}
.blog-article ul, .blog-article ol { padding-left: 1.5rem; margin-bottom: 1.5rem; }
.blog-article li { margin-bottom: 0.5rem; }
.blog-article blockquote {
  border-left: 3px solid var(--primary);
  padding: 12px 20px;
  margin: 1.5rem 0;
  background: rgba(108,99,255,0.04);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-dim);
}
.blog-article .cta-box {
  margin: 2rem 0;
  padding: 28px;
  background: linear-gradient(135deg, rgba(108,99,255,0.08), rgba(255,107,157,0.06));
  border: 1px solid rgba(108,99,255,0.2);
  border-radius: var(--radius);
  text-align: center;
}
.blog-article .cta-box p { margin-bottom: 1rem; }

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 24px 30px;
  background: var(--bg-alt);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .nav-logo { margin-bottom: 0.75rem; }
.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-dim);
  max-width: 300px;
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.footer-col a {
  display: block;
  padding: 4px 0;
  font-size: 0.9rem;
  color: var(--text-dim);
}
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Cookie Consent ── */
.cookie-consent {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.cookie-consent.show { transform: translateY(0); }
.cookie-consent .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.cookie-consent p {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 0;
}
.cookie-consent a { font-size: 0.85rem; }
.cookie-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Animations ── */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}


/* ── Responsive: Tablet (768px-1199px) ── */
@media (max-width: 1199px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .feature-block { grid-template-columns: 1fr; gap: 32px; padding: 60px 0; }
  .feature-block:nth-child(even) .feature-visual { order: 0; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 440px; }
  .hero-stats { gap: 24px; flex-wrap: wrap; justify-content: center; }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid-12 { grid-template-columns: repeat(3, 1fr); }
  .usecase-grid { grid-template-columns: 1fr; }
}

/* ── Responsive: Mobile (320px-767px) ── */
@media (max-width: 767px) {
  .container { padding: 0 16px; }

  /* Nav: fullscreen drawer */
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px 20px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    overflow-y: auto;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-links a { width: 100%; padding: 14px 16px; font-size: 1.05rem; }
  .nav-cta { margin-left: 0; margin-top: 8px; width: 100%; }
  .nav-cta .btn { width: 100%; justify-content: center; }
  .hamburger { display: flex; }

  /* Nav logo */
  .nav-logo { font-size: 1.1rem; }
  .nav-logo-img { height: 24px; }

  /* Grids → 1-col */
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-6 { grid-template-columns: 1fr; }
  .pain-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .usecase-grid { grid-template-columns: 1fr; }
  .feature-grid-12 { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: 1fr; }

  /* Hero */
  .hero { padding: calc(var(--nav-height) + 32px) 16px 48px; }
  .hero-content { max-width: 100%; }
  .hero h1 { font-size: clamp(1.8rem, 8vw, 2.4rem); }
  .hero-stats { gap: 16px; }
  .hero-stat-number { font-size: 1.4rem; }
  .hero-badge { font-size: 0.7rem; padding: 4px 12px; }

  /* Sections */
  .section { padding: 48px 16px; }
  .section-header { margin-bottom: 32px; }

  /* Cards */
  .card { padding: 24px; }
  .feature-mini-card { padding: 16px; }
  .pain-card { padding: 24px; }

  /* Pricing */
  .pricing-card { padding: 28px 20px; }
  .pricing-price { font-size: 2.2rem; }

  /* Comparison table */
  .comparison-wrapper { margin: 0 -8px; border-radius: 0; }
  .comparison-table { font-size: 0.7rem; }
  .comparison-table th,
  .comparison-table td { padding: 8px 6px; white-space: nowrap; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .footer-brand p { max-width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; }

  /* Cookie consent */
  .cookie-consent { padding: 16px; }
  .cookie-consent .container { flex-direction: column; text-align: center; gap: 12px; }

  /* KDP */
  .kdp-box { padding: 32px 20px; }
  .kdp-steps { grid-template-columns: 1fr; gap: 16px; }

  /* Legal content */
  .legal-content { padding: calc(var(--nav-height) + 40px) 16px 60px; }
  .legal-content h1 { font-size: 1.6rem; }

  /* Blog articles */
  .blog-article { padding: calc(var(--nav-height) + 40px) 16px 60px; }
  .blog-article h1 { font-size: 1.6rem; }
  .blog-card-body { padding: 20px; }
  .blog-card-image { height: 160px; }

  /* Feature blocks */
  .feature-block { gap: 24px; padding: 40px 0; }
  .feature-text h3 { font-size: 1.3rem; }
  .feature-mockup { padding: 24px; }

  /* FAQ */
  details.faq-item summary { padding: 14px 16px; font-size: 0.9rem; }
  .faq-answer { padding: 0 16px 14px; }

  /* 404 */
  .page-404 h1 { font-size: clamp(4rem, 20vw, 6rem); }

  /* Contact form */
  .contact-detail { gap: 10px; }
}

/* ============================================
   ArcWriter v2 — Extended Components
   ============================================ */

/* ── Pain / Agitation Grid ── */
.pain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}
.pain-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.pain-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}
.pain-card:nth-child(1)::before { background: var(--error); }
.pain-card:nth-child(2)::before { background: var(--warning); }
.pain-card:nth-child(3)::before { background: var(--secondary); }
.pain-card:nth-child(4)::before { background: var(--primary); }
.pain-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-2px);
}
.pain-icon {
  font-size: 1.8rem;
  margin-bottom: 0.75rem;
}
.pain-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text);
}
.pain-card p {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 0;
}

/* ── Grid Layouts ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-6 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

/* ── Comparison Table ── */
.comparison-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.comparison-table th,
.comparison-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.comparison-table thead th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--bg-alt);
  color: var(--text-dim);
  font-weight: 600;
  position: sticky;
  top: 0;
}
.comparison-table .highlight {
  color: var(--success);
  font-weight: 600;
}
.comparison-table .cross {
  color: var(--text-muted);
}
.comparison-table tbody tr:last-child td {
  border-bottom: none;
}
.comparison-table tbody tr:hover {
  background: rgba(255,255,255,0.02);
}
.comparison-table .arcwriter-col {
  background: rgba(108,99,255,0.04);
}
.comparison-table .feature-name {
  font-weight: 600;
  color: var(--text);
}

/* ── Testimonials ── */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}
.testimonial-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-2px);
}
.testimonial-stars {
  color: #facc15;
  font-size: 1rem;
  margin-bottom: 0.75rem;
}
.testimonial-text {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 1rem;
  flex: 1;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
}
.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.testimonial-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}
.testimonial-role {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── FAQ (details/summary) ── */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}
details.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color var(--transition);
  background: var(--bg-card);
}
details.faq-item:hover {
  border-color: var(--border-light);
}
details.faq-item[open] {
  border-color: var(--primary);
}
details.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  list-style: none;
  transition: background var(--transition);
}
details.faq-item summary::-webkit-details-marker {
  display: none;
}
details.faq-item summary:hover {
  background: var(--bg-card-hover);
}
details.faq-item summary::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}
details.faq-item[open] summary::after {
  transform: rotate(45deg);
  color: var(--primary);
}
.faq-answer {
  padding: 0 20px 18px;
  background: var(--bg-alt);
}
.faq-answer p {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 0;
}

/* ── FAQ Category Layout ── */
.faq-category {
  margin-bottom: 48px;
}
.faq-category-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--text);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.faq-category-icon {
  font-size: 1.4rem;
  line-height: 1;
}
.faq-category .faq-list {
  max-width: 800px;
  margin: 0;
}

/* ── FAQ Category Navigation ── */
.faq-category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  padding: 16px 0;
  margin-bottom: 24px;
}
.faq-cat-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  min-height: 40px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-dim);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all var(--transition);
  text-decoration: none;
}
.faq-cat-link:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: rgba(108, 99, 255, 0.08);
}

/* ── KDP Publishing Box ── */
.kdp-box {
  background: linear-gradient(135deg, rgba(108,99,255,0.08), rgba(255,107,157,0.06));
  border: 1px solid rgba(108,99,255,0.2);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.kdp-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 50% 50%, rgba(108,99,255,0.04), transparent 60%);
  pointer-events: none;
}
.kdp-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}
.kdp-box h3 {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
}
.kdp-box p {
  max-width: 500px;
  margin: 0 auto 1.5rem;
  font-size: 0.95rem;
}
.kdp-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 700px;
  margin: 0 auto 2rem;
  position: relative;
  z-index: 1;
}
.kdp-step {
  text-align: center;
}
.kdp-step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  margin: 0 auto 0.5rem;
}
.kdp-step-label {
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* ── Use Cases ── */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.usecase-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
}
.usecase-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.usecase-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.usecase-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}
.usecase-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 0;
}

/* ── Feature Grid (12 cards) ── */
.feature-grid-12 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.feature-mini-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  transition: all var(--transition);
  text-align: center;
}
.feature-mini-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}
.feature-mini-card .card-icon {
  margin: 0 auto 0.75rem;
  width: 40px;
  height: 40px;
  font-size: 1.2rem;
}
.feature-mini-card h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text);
}
.feature-mini-card p {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 0;
}



/* Language Switcher */
.lang-switcher {
  position: relative;
  display: inline-block;
  margin-left: 8px;
}
.lang-current {
  cursor: pointer;
  padding: 6px 10px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: border-color 0.2s;
}
.lang-current:hover {
  border-color: rgba(255,255,255,0.3);
}
.lang-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 4px;
  background: #1a1e2e;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  min-width: 130px;
  z-index: 1000;
  overflow: hidden;
}
.lang-switcher:hover .lang-dropdown,
.lang-switcher:focus-within .lang-dropdown {
  display: block;
}
.lang-dropdown a {
  display: block;
  padding: 8px 14px;
  color: #a0a4b8;
  text-decoration: none;
  font-size: 13px;
  transition: background 0.2s, color 0.2s;
}
.lang-dropdown a:hover,
.lang-dropdown a.lang-active {
  background: rgba(108,99,255,0.1);
  color: #fff;
}
.lang-dropdown a.lang-active {
  font-weight: 600;
}
.lang-active {
  font-weight: 600;
}
@media (max-width: 768px) {
  .lang-switcher { margin: 8px 0 0 0; }
  .lang-dropdown { right: auto; left: 0; }
}