/**
 * Dosya: assets/css/site.css
 * Amaç: CallToSales ön yüzünün hafif, mobil öncelikli ve performans odaklı stil dosyasıdır.
 * Not: Harici framework bağımlılığı olmadan BS4/BS5 sınıf mantığına uyumlu düzen sağlar.
 */
:root {
    --bg: #070b16;
    --bg-soft: #0d1427;
    --card: rgba(18, 28, 52, 0.82);
    --line: rgba(148, 163, 184, 0.16);
    --text: #edf2ff;
    --muted: #a8b0c7;
    --primary: #68d5ff;
    --primary-2: #8d7dff;
    --success: #29d391;
    --danger: #ff6b8b;
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
    --radius: 22px;
    --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(104, 213, 255, 0.13), transparent 28%),
        radial-gradient(circle at top right, rgba(141, 125, 255, 0.18), transparent 24%),
        linear-gradient(180deg, #0a1020 0%, #05070f 100%);
    color: var(--text);
    line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(calc(100% - 32px), var(--container)); margin: 0 auto; }
.muted { color: var(--muted); }
.section { padding: 80px 0; }
.section-tight { padding: 48px 0 80px; }
.section-title { font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.1; margin: 0 0 16px; }
.section-lead { font-size: 1.05rem; color: var(--muted); max-width: 760px; margin: 0 0 28px; }
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; border-radius: 999px; background: rgba(104, 213, 255, 0.1); color: var(--primary); border: 1px solid rgba(104, 213, 255, 0.18); font-size: 0.9rem; margin-bottom: 18px; }
.site-header { position: sticky; top: 0; z-index: 30; backdrop-filter: blur(16px); background: rgba(4, 8, 17, 0.82); border-bottom: 1px solid var(--line); }
.nav-shell { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 78px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark { width: 46px; height: 46px; border-radius: 14px; display: inline-grid; place-items: center; font-weight: 800; color: #08101e; background: linear-gradient(135deg, var(--primary), var(--primary-2)); box-shadow: var(--shadow); }
.brand-text { display: flex; flex-direction: column; min-width: 0; }
.brand-text strong { font-size: 1.05rem; }
.brand-text small { color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.desktop-nav { display: none; align-items: center; gap: 10px; }
.nav-link, .mobile-link { color: var(--muted); transition: color .2s ease, background .2s ease; }
.nav-link { padding: 10px 12px; border-radius: 12px; }
.nav-link:hover, .nav-link.is-active, .mobile-link:hover, .mobile-link.is-active { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-actions { display: none; align-items: center; gap: 12px; }
.nav-toggle { width: 48px; height: 48px; background: rgba(255,255,255,0.03); border: 1px solid var(--line); border-radius: 14px; display: inline-flex; flex-direction: column; justify-content: center; gap: 5px; padding: 0 12px; cursor: pointer; }
.nav-toggle span { height: 2px; background: var(--text); border-radius: 999px; }
.mobile-nav { display: none; border-top: 1px solid var(--line); background: rgba(7, 11, 22, 0.96); }
.mobile-nav.is-open { display: block; }
.mobile-nav-inner { padding: 16px 0 22px; display: grid; gap: 8px; }
.mobile-link { display: block; padding: 12px 14px; border-radius: 14px; }
.mobile-actions { display: grid; gap: 10px; margin-top: 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 46px; padding: 0 18px; border-radius: 14px; border: 1px solid transparent; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { color: #09121f; background: linear-gradient(135deg, var(--primary), #b3ecff); box-shadow: 0 16px 28px rgba(104, 213, 255, 0.2); }
.btn-secondary { color: var(--text); background: rgba(255,255,255,0.04); border-color: var(--line); }
.btn-ghost { color: var(--primary); background: rgba(104,213,255,0.08); border-color: rgba(104,213,255,0.15); }
.btn-block { width: 100%; }
.hero { padding: 84px 0 64px; }
.hero-grid { display: grid; gap: 28px; align-items: center; }
.hero-copy h1 { font-size: clamp(2.2rem, 5vw, 4.5rem); line-height: 1.02; margin: 0 0 16px; letter-spacing: -0.03em; }
.hero-copy p { font-size: 1.08rem; color: var(--muted); margin: 0 0 28px; max-width: 700px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-points { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 24px; }
.hero-point, .stat-card, .card, .pricing-card, .timeline-card, .feature-card, .contact-card, .highlight-box { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.hero-point { padding: 16px; }
.hero-point strong { display: block; margin-bottom: 6px; font-size: 1rem; }
.hero-panel { position: relative; overflow: hidden; padding: 28px; }
.hero-panel::before { content: ""; position: absolute; inset: -20% auto auto -20%; width: 220px; height: 220px; border-radius: 50%; background: rgba(104, 213, 255, 0.16); filter: blur(16px); }
.hero-flow { position: relative; z-index: 1; display: grid; gap: 14px; }
.flow-step { padding: 18px; border-radius: 18px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.05); }
.flow-step span { display: inline-flex; width: 34px; height: 34px; align-items: center; justify-content: center; border-radius: 999px; color: #09121f; background: linear-gradient(135deg, var(--primary), var(--primary-2)); font-weight: 800; margin-bottom: 12px; }
.grid-3, .grid-4, .stats-grid, .pricing-grid, .contact-grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }
.stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card, .feature-card, .pricing-card, .timeline-card, .contact-card, .highlight-box { padding: 24px; }
.card h3, .feature-card h3, .pricing-card h3, .timeline-card h3, .contact-card h3 { margin-top: 0; margin-bottom: 12px; font-size: 1.2rem; }
.card p, .feature-card p, .pricing-card p, .timeline-card p, .contact-card p { margin: 0; color: var(--muted); }
.card ul, .pricing-card ul, .timeline-card ul { margin: 14px 0 0; padding-left: 18px; color: var(--muted); }
.card li, .pricing-card li, .timeline-card li { margin-bottom: 8px; }
.stat-card { padding: 18px; }
.stat-card strong { display: block; font-size: 2rem; line-height: 1; margin-bottom: 8px; }
.two-col { display: grid; gap: 20px; }
.highlight-box { display: flex; flex-direction: column; gap: 12px; }
.pricing-card { position: relative; overflow: hidden; }
.pricing-card.featured { border-color: rgba(104,213,255,0.35); }
.pricing-card .tag { display: inline-flex; padding: 8px 12px; border-radius: 999px; background: rgba(104,213,255,0.08); color: var(--primary); font-size: .86rem; margin-bottom: 14px; }
.price { font-size: 2rem; font-weight: 800; margin: 0 0 8px; }
.price small { font-size: 1rem; color: var(--muted); font-weight: 500; }
.timeline-card .phase { display: inline-flex; padding: 8px 10px; border-radius: 10px; background: rgba(141,125,255,0.12); color: #d2cfff; margin-bottom: 14px; font-size: .85rem; }
.page-hero { padding: 54px 0 18px; }
.page-hero .section-title { margin-bottom: 12px; }
.contact-grid { grid-template-columns: 1fr; }
.form-grid { display: grid; gap: 14px; }
.field label { display: block; margin-bottom: 8px; font-weight: 600; }
.field input, .field textarea, .field select { width: 100%; min-height: 50px; padding: 14px 16px; border-radius: 14px; border: 1px solid var(--line); background: rgba(255,255,255,0.03); color: var(--text); font: inherit; }
.field textarea { min-height: 140px; resize: vertical; }
.inline-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }
.inline-list li { padding: 10px 14px; border-radius: 999px; background: rgba(255,255,255,0.04); color: var(--muted); border: 1px solid var(--line); }
.site-footer { padding: 40px 0 24px; border-top: 1px solid var(--line); margin-top: 20px; background: rgba(4, 8, 17, 0.82); }
.footer-grid { display: grid; gap: 24px; }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-links a { color: var(--muted); }
.footer-bottom { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: .95rem; }
.notice { padding: 16px 18px; border: 1px solid rgba(41,211,145,.18); background: rgba(41,211,145,.08); color: #dffef0; border-radius: 16px; }
@media (min-width: 768px) {
    .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .contact-grid, .two-col { grid-template-columns: 1.2fr 1fr; }
    .hero-grid { grid-template-columns: 1.1fr .9fr; }
    .footer-grid { grid-template-columns: 1.2fr .8fr .8fr; }
}
@media (min-width: 992px) {
    .desktop-nav, .nav-actions { display: inline-flex; }
    .nav-toggle { display: none; }
    .grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .pricing-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .stats-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}