:root {
  --ink: #0F1A2E;
  --ink-soft: #2A3651;
  --ink-muted: #5A6783;
  --ink-faint: #8995AD;
  --paper: #FBFCFE;
  --paper-warm: #D7DFEC;
  --paper-soft: #EDF1F7;
  --paper-card: #FFFFFF;
  --accent: #79AEF2;
  --accent-deep: #4A8AD8;
  --accent-soft: #E3EEFB;
  --accent-darker: #2E6BBF;
  --line: #C8D3E3;
  --line-soft: #E1E7F0;
  --shadow-sm: 0 1px 2px rgba(15, 26, 46, 0.04), 0 1px 1px rgba(15, 26, 46, 0.03);
  --shadow-md: 0 4px 12px rgba(15, 26, 46, 0.06), 0 2px 4px rgba(15, 26, 46, 0.04);
  --shadow-lg: 0 20px 40px -12px rgba(15, 26, 46, 0.10), 0 8px 16px -8px rgba(15, 26, 46, 0.06);
  --shadow-xl: 0 40px 80px -20px rgba(15, 26, 46, 0.14), 0 16px 32px -16px rgba(15, 26, 46, 0.08);
  --shadow-accent: 0 8px 24px -8px rgba(121, 174, 242, 0.5);
  --display: 'Instrument Serif', Georgia, 'Times New Roman', serif;
  --body: 'Inter Tight', -apple-system, system-ui, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-weight: 400;
  font-feature-settings: 'cv11', 'ss03';
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: 0.02;
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: multiply;
}

.wrap { max-width: 1280px; margin: 0 auto; padding: 0 32px; position: relative; z-index: 2; }

nav {
  position: sticky; top: 0; z-index: 100;
  background: #D7DFEC;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 3px rgba(15, 26, 46, 0.04);
}

.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 18px 32px; max-width: 1280px; margin: 0 auto; }

.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--body); font-weight: 700;
  font-size: 19px; letter-spacing: -0.02em;
  color: var(--ink); text-decoration: none;
}

.logo-img {
  max-height: 36px; width: auto; display: block;
}

.logo-mark {
  width: 32px; height: 32px;
  background: var(--ink); border-radius: 8px;
  position: relative; display: flex;
  align-items: center; justify-content: center;
  color: var(--accent); font-family: var(--body);
  font-weight: 700; font-size: 15px;
}

.logo-mark::after {
  content: ''; position: absolute; inset: 3px;
  border: 1px solid rgba(121, 174, 242, 0.3); border-radius: 5px;
}

.nav-links { display: flex; gap: 36px; align-items: center; }
.nav-links a { color: var(--ink-soft); text-decoration: none; font-size: 14px; font-weight: 500; transition: color 0.2s ease; }
.nav-links a:hover { color: var(--accent-darker); }

.nav-links a.nav-sos {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--accent-soft);
  color: var(--accent-darker);
  border-radius: 100px;
  font-weight: 600;
  font-size: 13px;
}
.nav-links a.nav-sos::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent-darker);
  border-radius: 50%;
}
.nav-links a.nav-sos:hover {
  background: var(--accent);
  color: var(--ink);
}

.nav-actions { display: flex; gap: 12px; align-items: center; }

.lang-switch { display: flex; background: var(--paper-soft); border: 1px solid var(--line); border-radius: 100px; padding: 3px; }
.lang-switch button { background: none; border: none; padding: 5px 12px; border-radius: 100px; cursor: pointer; color: var(--ink-muted); font-family: inherit; font-weight: 600; font-size: 12px; transition: all 0.2s ease; }
.lang-switch button.active { background: var(--ink); color: var(--paper); }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: 100px;
  font-weight: 600; font-size: 14px;
  text-decoration: none; transition: all 0.25s ease;
  cursor: pointer; border: none; font-family: inherit; white-space: nowrap;
}

.btn-primary { background: var(--accent); color: var(--ink); box-shadow: var(--shadow-accent); }
.btn-primary:hover { background: var(--accent-deep); color: #fff; transform: translateY(-1px); box-shadow: 0 12px 32px -8px rgba(121, 174, 242, 0.7); }

.btn-secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-secondary:hover { border-color: var(--accent-darker); background: var(--paper-card); color: var(--accent-darker); }

.btn-large { padding: 15px 28px; font-size: 15px; }

.hero { padding: 80px 0 60px; position: relative; overflow: hidden; }

.hero::before {
  content: ''; position: absolute;
  top: -100px; left: 50%; transform: translateX(-50%);
  width: 1100px; height: 1100px;
  background: radial-gradient(circle, rgba(121, 174, 242, 0.22) 0%, rgba(215, 223, 236, 0.4) 35%, transparent 65%);
  pointer-events: none; z-index: 0;
}

.hero > * { position: relative; z-index: 2; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; background: var(--accent-soft); color: var(--accent-darker);
  border-radius: 100px; font-size: 12px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  margin-bottom: 28px; font-family: var(--mono);
}

.eyebrow-dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; animation: pulse 2s ease-in-out infinite; }

@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.3); } }

.hero h1 {
  font-family: var(--body); font-weight: 600;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.05; letter-spacing: -0.035em;
  color: var(--ink); max-width: 900px; margin-bottom: 28px;
}

.hero h1 em { font-family: var(--display); font-style: italic; color: var(--accent-darker); font-weight: 400; }

.hero-sub { font-size: 19px; color: var(--ink-muted); max-width: 620px; margin-bottom: 40px; line-height: 1.55; }

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 56px; }

.hero-trust { display: flex; align-items: center; gap: 24px; color: var(--ink-faint); font-size: 13px; font-weight: 500; flex-wrap: wrap; }

.trust-divider { width: 1px; height: 14px; background: var(--line); }
.trust-avatars { display: flex; }
.trust-avatar { width: 28px; height: 28px; border-radius: 50%; border: 2px solid var(--paper); margin-left: -8px; }
.trust-avatar:nth-child(1) { background: linear-gradient(135deg, #79AEF2, #4A8AD8); margin-left: 0; }
.trust-avatar:nth-child(2) { background: linear-gradient(135deg, #0F1A2E, #2A3651); }
.trust-avatar:nth-child(3) { background: linear-gradient(135deg, #2E6BBF, #0F1A2E); }
.trust-avatar:nth-child(4) { background: linear-gradient(135deg, #A8C8F0, #79AEF2); }

.hero-visual { margin-top: 64px; position: relative; }

.hero-dashboard { background: var(--paper-card); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow-xl); overflow: hidden; position: relative; }

.dashboard-chrome { display: flex; align-items: center; gap: 8px; padding: 14px 20px; border-bottom: 1px solid var(--line-soft); background: var(--paper-soft); }

.dashboard-dot { width: 11px; height: 11px; border-radius: 50%; background: var(--line); }
.dashboard-dot:nth-child(1) { background: #E85E5E; }
.dashboard-dot:nth-child(2) { background: #E8B05E; }
.dashboard-dot:nth-child(3) { background: #7EC47E; }

.dashboard-url { margin-left: 16px; padding: 4px 12px; background: var(--paper-card); border: 1px solid var(--line); border-radius: 6px; font-family: var(--mono); font-size: 11px; color: var(--ink-muted); flex: 1; max-width: 320px; }

.dashboard-content { background: linear-gradient(135deg, var(--paper-soft) 0%, var(--paper-card) 100%); display: block; position: relative; overflow: hidden; }

.dashboard-img { display: block; width: 100%; height: auto; }

.dashboard-placeholder { color: var(--ink-faint); font-size: 14px; font-family: var(--body); font-weight: 500; text-align: center; padding: 80px 40px; }

section { padding: 100px 0; position: relative; }

.section-label { font-family: var(--mono); font-size: 12px; font-weight: 500; color: var(--accent-darker); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 16px; display: inline-flex; align-items: center; gap: 10px; }
.section-label::before { content: ''; width: 24px; height: 1px; background: var(--accent-darker); }

.section-title { font-family: var(--body); font-weight: 600; font-size: clamp(32px, 4vw, 48px); line-height: 1.1; letter-spacing: -0.03em; color: var(--ink); max-width: 700px; margin-bottom: 20px; }
.section-title em { font-family: var(--display); font-style: italic; color: var(--accent-darker); font-weight: 400; }

.section-sub { font-size: 17px; color: var(--ink-muted); max-width: 580px; line-height: 1.55; }

.section-header { margin-bottom: 64px; }

#features { background: var(--paper-warm); }

.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; background: var(--line); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }

.feature-card { background: var(--paper-card); padding: 40px 32px; transition: background 0.3s ease; position: relative; }
.feature-card:hover { background: var(--paper-soft); }

.feature-icon { width: 44px; height: 44px; background: var(--accent-soft); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; color: var(--accent-darker); }
.feature-card:nth-child(2n) .feature-icon { background: var(--ink); color: var(--accent); }

.feature-title { font-family: var(--body); font-size: 19px; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 10px; color: var(--ink); }
.feature-desc { font-size: 14.5px; color: var(--ink-muted); line-height: 1.6; }
.feature-number { position: absolute; top: 24px; right: 28px; font-family: var(--mono); font-size: 11px; color: var(--ink-faint); font-weight: 500; }

#demo { background: var(--ink); color: var(--paper); position: relative; overflow: hidden; }
#demo::before { content: ''; position: absolute; top: -20%; right: -10%; width: 700px; height: 700px; background: radial-gradient(circle, rgba(121, 174, 242, 0.25) 0%, transparent 60%); pointer-events: none; }
#demo::after { content: ''; position: absolute; bottom: -30%; left: -10%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(121, 174, 242, 0.15) 0%, transparent 60%); pointer-events: none; }
#demo .section-title { color: var(--paper); }
#demo .section-sub { color: rgba(251, 252, 254, 0.65); }
#demo .section-label { color: var(--accent); }
#demo .section-label::before { background: var(--accent); }

.demo-tabs { display: flex; gap: 8px; margin-bottom: 32px; flex-wrap: wrap; position: relative; z-index: 2; }
.demo-tab { padding: 10px 20px; border-radius: 100px; background: rgba(251, 252, 254, 0.06); border: 1px solid rgba(251, 252, 254, 0.1); color: rgba(251, 252, 254, 0.7); font-size: 13px; font-weight: 500; cursor: pointer; font-family: inherit; transition: all 0.25s ease; }
.demo-tab.active { background: var(--accent); color: var(--ink); border-color: var(--accent); }
.demo-tab:hover:not(.active) { background: rgba(121, 174, 242, 0.15); color: var(--paper); border-color: rgba(121, 174, 242, 0.3); }

.demo-screenshot { background: var(--paper-card); border-radius: 12px; overflow: hidden; border: 1px solid rgba(251, 252, 254, 0.1); position: relative; z-index: 2; min-height: 400px; display: flex; align-items: center; justify-content: center; }
.demo-screenshot img { display: block; width: 100%; height: auto; }
.demo-placeholder-text { color: var(--ink-faint); font-family: var(--body); font-weight: 500; font-size: 14px; padding: 80px 40px; text-align: center; }

.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.price-card { background: var(--paper-card); border: 1px solid var(--line); border-radius: 16px; padding: 36px 32px; position: relative; transition: all 0.3s ease; }
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.price-card.featured { background: var(--ink); color: var(--paper); border-color: var(--ink); box-shadow: var(--shadow-lg); }

.featured-badge { position: absolute; top: -10px; left: 32px; background: var(--accent); color: var(--ink); padding: 4px 12px; border-radius: 100px; font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; font-family: var(--mono); }

.plan-name { font-family: var(--body); font-size: 20px; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 6px; }
.plan-tag { font-size: 13px; color: var(--ink-muted); margin-bottom: 28px; }
.price-card.featured .plan-tag { color: rgba(251, 252, 254, 0.6); }

.plan-price { font-family: var(--body); font-size: 44px; font-weight: 600; letter-spacing: -0.035em; line-height: 1; margin-bottom: 4px; display: flex; align-items: baseline; gap: 6px; }
.plan-price span { font-family: var(--body); font-size: 14px; font-weight: 500; color: var(--ink-muted); }
.price-card.featured .plan-price { color: var(--accent); }
.price-card.featured .plan-price span { color: rgba(251, 252, 254, 0.6); }

.plan-period { font-size: 13px; color: var(--ink-faint); margin-bottom: 28px; }
.price-card.featured .plan-period { color: rgba(251, 252, 254, 0.5); }

.plan-cta { display: block; width: 100%; text-align: center; padding: 13px; border-radius: 100px; font-weight: 600; font-size: 14px; text-decoration: none; transition: all 0.25s ease; margin-bottom: 28px; background: var(--accent); color: var(--ink); border: 1px solid var(--accent); }
.plan-cta:hover { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; }
.price-card.featured .plan-cta { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.price-card.featured .plan-cta:hover { background: var(--paper); border-color: var(--paper); color: var(--ink); }

.plan-features { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.plan-features li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--ink-soft); line-height: 1.5; }
.price-card.featured .plan-features li { color: rgba(251, 252, 254, 0.85); }

.check-icon { flex-shrink: 0; width: 18px; height: 18px; margin-top: 1px; color: var(--accent-darker); }
.price-card.featured .check-icon { color: var(--accent); }

#contact { background: var(--paper-warm); }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }

.contact-info h2 { font-family: var(--body); font-weight: 600; font-size: clamp(30px, 3.5vw, 42px); line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 20px; }
.contact-info h2 em { font-family: var(--display); font-style: italic; color: var(--accent-darker); font-weight: 400; }

.contact-details { margin-top: 40px; display: flex; flex-direction: column; gap: 20px; }
.contact-item { display: flex; align-items: center; gap: 14px; font-size: 15px; color: var(--ink-soft); }
.contact-item-icon { width: 36px; height: 36px; background: var(--paper-card); border: 1px solid var(--line); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: var(--accent-darker); }

.contact-form { background: var(--paper-card); padding: 36px; border-radius: 16px; border: 1px solid var(--line); }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--ink-soft); margin-bottom: 6px; }
.form-group input, .form-group textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; font-family: inherit; font-size: 14px; color: var(--ink); background: var(--paper); transition: border-color 0.2s ease, box-shadow 0.2s ease; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(121, 174, 242, 0.2); }
.form-group textarea { resize: vertical; min-height: 110px; }

footer { background: var(--ink); color: rgba(251, 252, 254, 0.7); padding: 64px 0 32px; }

.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }

.footer-brand { font-family: var(--body); font-size: 22px; font-weight: 700; letter-spacing: -0.02em; color: var(--paper); margin-bottom: 12px; }
.footer-logo-img { max-height: 42px; width: auto; display: block; margin-bottom: 16px; }
.footer-desc { font-size: 14px; line-height: 1.6; max-width: 320px; }

.footer-col h4 { font-family: var(--mono); font-size: 11px; font-weight: 600; color: rgba(251, 252, 254, 0.5); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 18px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: rgba(251, 252, 254, 0.7); text-decoration: none; font-size: 14px; transition: color 0.2s ease; }
.footer-col a:hover { color: var(--accent); }

.footer-bottom { border-top: 1px solid rgba(251, 252, 254, 0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: rgba(251, 252, 254, 0.5); flex-wrap: wrap; gap: 12px; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .features-grid, .pricing-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .hero { padding: 60px 0 40px; }
  section { padding: 70px 0; }
}

@media (max-width: 600px) {
  .wrap, .nav-inner { padding: 0 20px; }
  .nav-inner { padding: 16px 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}

[data-lang-en] { display: none !important; }
body.lang-en [data-lang-tr] { display: none !important; }
body.lang-en [data-lang-en] { display: inline; }
body.lang-en [data-lang-en].block { display: block; }
body.lang-en a.nav-sos[data-lang-en],
body.lang-en .btn[data-lang-en] { display: inline-flex; }

.fade-up { opacity: 0; transform: translateY(20px); animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.fade-up:nth-child(2) { animation-delay: 0.1s; }
.fade-up:nth-child(3) { animation-delay: 0.2s; }
.fade-up:nth-child(4) { animation-delay: 0.3s; }

@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }