:root {
  --bg: #06090f;
  --bg-card: #0c1017;
  --bg-card-hover: #111720;
  --surface: #151c28;
  --border: #1e2a3a;
  --border-glow: #2563eb33;
  --accent: #3b82f6;
  --accent-bright: #60a5fa;
  --accent-glow: #3b82f620;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --text: #e8edf5;
  --text-dim: #8899b0;
  --text-muted: #556680;
  --gradient-1: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #06b6d4 100%);
  --gradient-2: linear-gradient(135deg, #1e3a5f 0%, #0c1017 100%);
  --font: 'Plus Jakarta Sans', -apple-system, sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ═══ NAVIGATION ═══ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  backdrop-filter: blur(20px);
  background: rgba(6, 9, 15, 0.8);
  border-bottom: 1px solid transparent;
  transition: all 0.3s;
}
nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(6, 9, 15, 0.95);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: white;
}
.nav-logo-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-lang {
  display: flex;
  gap: 4px;
  background: var(--surface);
  border-radius: 8px;
  padding: 3px;
  border: 1px solid var(--border);
}
.nav-lang button {
  padding: 4px 10px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font);
}
.nav-lang button.active {
  background: var(--accent);
  color: white;
}
.btn-login {
  padding: 8px 20px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  font-family: var(--font);
}
.btn-login:hover {
  background: #2563eb;
  transform: translateY(-1px);
}

/* ═══ HERO ═══ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #8b5cf615 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-bright);
  margin-bottom: 24px;
  animation: fadeInDown 0.6s ease;
}
.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
  animation: fadeInUp 0.7s ease 0.1s both;
}
.hero h1 .gradient-text {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 500px;
  animation: fadeInUp 0.7s ease 0.2s both;
}
.hero-actions {
  display: flex;
  gap: 14px;
  animation: fadeInUp 0.7s ease 0.3s both;
}
.btn-primary {
  padding: 14px 32px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s;
  font-family: var(--font);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary:hover {
  background: #2563eb;
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(59, 130, 246, 0.3);
}
.btn-outline {
  padding: 14px 32px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s;
  font-family: var(--font);
}
.btn-outline:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
}

/* Hero visual */
.hero-visual {
  position: relative;
  animation: fadeInUp 0.8s ease 0.4s both;
}
.hero-mockup {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0,0,0,0.5);
}
.mockup-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.mockup-dot.r { background: #ef4444; }
.mockup-dot.y { background: #f59e0b; }
.mockup-dot.g { background: #10b981; }
.mockup-url {
  margin-left: 12px;
  padding: 4px 14px;
  background: var(--bg);
  border-radius: 6px;
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--mono);
}
.mockup-content {
  padding: 24px;
}
.mockup-result {
  background: var(--bg);
  border-radius: 12px;
  padding: 20px;
  border: 1px solid var(--border);
}
.mockup-result-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.mockup-result-badge {
  padding: 4px 12px;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--danger);
}
.mockup-diff-card {
  background: var(--surface);
  border-left: 3px solid var(--danger);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 8px;
  animation: slideRight 0.5s ease both;
}
.mockup-diff-card:nth-child(2) { animation-delay: 0.7s; }
.mockup-diff-card:nth-child(3) { animation-delay: 1.4s; }
@keyframes slideRight {
  from { opacity: 0; transform: translateX(-10px); }
  to { opacity: 1; transform: translateX(0); }
}
.mockup-diff-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--danger);
  margin-bottom: 4px;
}
.mockup-diff-desc {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ═══ STATS BAR ═══ */
.stats-bar {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
  padding: 40px 0;
}
.stats-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}
.stat-item h3 {
  font-size: 36px;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}
.stat-item p {
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 500;
}

/* ═══ FEATURES ═══ */
.features {
  padding: 100px 0;
}
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-bright);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-1);
  opacity: 0;
  transition: opacity 0.3s;
}
.feature-card:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ═══ HOW IT WORKS ═══ */
.how-it-works {
  padding: 100px 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}
.steps-grid::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent), transparent);
  opacity: 0.3;
}
.step-card {
  text-align: center;
  position: relative;
  z-index: 1;
}
.step-number {
  width: 56px;
  height: 56px;
  background: var(--bg);
  border: 2px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: var(--accent-bright);
  margin: 0 auto 20px;
}
.step-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}
.step-card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
  max-width: 280px;
  margin: 0 auto;
}

/* ═══ COMPARISON ═══ */
.comparison {
  padding: 100px 0;
}
.comparison-table {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  max-width: 900px;
  margin: 0 auto;
}
.comp-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border-bottom: 1px solid var(--border);
}
.comp-row:last-child { border-bottom: none; }
.comp-row.header {
  background: var(--surface);
  font-weight: 700;
  font-size: 14px;
}
.comp-cell {
  padding: 16px 24px;
  font-size: 14px;
  display: flex;
  align-items: center;
}
.comp-cell:not(:first-child) {
  text-align: center;
  justify-content: center;
  border-left: 1px solid var(--border);
}
.comp-cell .check { color: var(--success); font-size: 18px; }
.comp-cell .cross { color: var(--text-muted); font-size: 14px; }
.comp-highlight {
  background: var(--accent-glow);
  font-weight: 600;
}

/* ═══ CTA / İLETİŞİM ═══ */
.cta {
  padding: 100px 0;
  text-align: center;
  position: relative;
}
.cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}
.contact-cards {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 16px;
  position: relative;
  flex-wrap: wrap;
}
.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  text-decoration: none;
  color: var(--text);
  transition: all 0.25s;
  min-width: 280px;
}
.contact-card:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(59, 130, 246, 0.15);
}
.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.contact-method {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-bright);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 2px;
}
.contact-value {
  font-size: 15px;
  font-weight: 600;
}

/* ═══ FOOTER ═══ */
footer {
  border-top: 1px solid var(--border);
  padding: 0;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 48px 0 32px;
}
.footer-tagline {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
  max-width: 280px;
}
.footer-links-group h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.footer-links-group a {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
  margin-bottom: 8px;
  transition: color 0.2s;
}
.footer-links-group a:hover { color: var(--accent-bright); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 12px;
  color: var(--text-muted);
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .steps-grid::before { display: none; }
  .comp-row { grid-template-columns: 1fr 1fr 1fr; }
  .comp-cell { padding: 12px 14px; font-size: 12px; }
  .nav-links a.hide-mobile { display: none; }
  .contact-cards { flex-direction: column; align-items: center; }
  .contact-card { width: 100%; max-width: 340px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
.no-underline { text-decoration: none; color: inherit; }