/* ScanBridge tanıtım sitesi — statik, framework'süz. */
:root {
  --blue: #2563eb;
  --blue-600: #1d4ed8;
  --blue-50: #eff6ff;
  --ink: #0f172a;
  --ink-2: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-2: #f8fafc;
  --green: #16a34a;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 23, 42, .08);
  --wrap: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.02em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; color: var(--ink-2); }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
section { padding: 80px 0; }
.alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.center { text-align: center; }
.lead { font-size: 1.15rem; color: var(--ink-2); max-width: 680px; }
.center .lead { margin-left: auto; margin-right: auto; }
.eyebrow { display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--blue); margin-bottom: 12px; }

/* Üst çubuk */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.92); backdrop-filter: saturate(180%) blur(10px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.nav-links { display: flex; gap: 22px; margin-left: auto; align-items: center; }
.nav-links a { color: var(--ink-2); font-weight: 500; font-size: .95rem; white-space: nowrap; }
.nav-links a.btn { color: #fff; }
.nav-links a.lang { color: var(--muted); border: 1px solid var(--line); border-radius: 8px; padding: 4px 10px; font-size: .85rem; }
@media (max-width: 860px) { .nav-links .hide-sm { display: none; } }
@media (max-width: 480px) { .nav-links a.lang { display: none; } }

/* Düğmeler */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 22px; border-radius: 10px; font-weight: 700; font-size: 1rem; border: 1px solid transparent; transition: background .15s, transform .15s; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-600); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-sm { padding: 8px 14px; font-size: .9rem; }
.ctas { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 14px; }
.center .ctas { justify-content: center; }
.store { display: inline-flex; align-items: center; gap: 10px; background: var(--ink); color: #fff; padding: 9px 16px; border-radius: 10px; font-size: .78rem; line-height: 1.15; }
.store:hover { text-decoration: none; background: #1e293b; }
.store b { display: block; font-size: 1.02rem; }
.store svg { width: 24px; height: 24px; fill: #fff; flex: none; }
.note { font-size: .9rem; color: var(--muted); }

/* Hero */
.hero { padding: 72px 0 64px; background: radial-gradient(1000px 420px at 80% 0%, var(--blue-50), transparent 70%); }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 920px) { .hero .wrap { grid-template-columns: 1fr; } }

/* Telefon → bulut → bilgisayar çizimi */
.demo { position: relative; display: flex; align-items: center; justify-content: center; gap: 14px; min-height: 340px; }
.phone { width: 150px; height: 300px; border-radius: 28px; background: #0f172a; padding: 10px; box-shadow: var(--shadow); flex: none; }
.phone .screen { height: 100%; border-radius: 20px; background: linear-gradient(#1e293b, #0f172a); position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.phone .frame { width: 92px; height: 70px; border: 2px solid #60a5fa; border-radius: 8px; position: relative; display: flex; align-items: center; justify-content: center; }
.phone .bars { width: 64px; height: 38px; background: repeating-linear-gradient(90deg, #fff 0 2px, transparent 2px 4px, #fff 4px 7px, transparent 7px 9px); opacity: .95; }
.phone .laser { position: absolute; left: 4px; right: 4px; height: 2px; background: #22c55e; box-shadow: 0 0 8px #22c55e; animation: laser 1.8s ease-in-out infinite; }
@keyframes laser { 0%, 100% { top: 12%; } 50% { top: 85%; } }
.phone .shot { position: absolute; bottom: 18px; width: 38px; height: 38px; border-radius: 50%; background: var(--blue); }
.link { display: flex; flex-direction: column; align-items: center; gap: 6px; color: var(--muted); font-size: .75rem; font-weight: 600; text-align: center; }
.link .dots { width: 70px; height: 4px; background: repeating-linear-gradient(90deg, var(--blue) 0 6px, transparent 6px 12px); background-size: 24px 4px; animation: flow 1s linear infinite; }
@keyframes flow { to { background-position: 24px 0; } }
.cloud { width: 46px; height: 46px; border-radius: 50%; background: var(--blue-50); display: flex; align-items: center; justify-content: center; }
.cloud svg { width: 26px; height: 26px; stroke: var(--blue); fill: none; stroke-width: 2; }
.laptop { flex: none; width: 250px; }
.laptop .lid { background: #0f172a; border-radius: 12px 12px 0 0; padding: 8px; box-shadow: var(--shadow); }
.laptop .sheet { background: #fff; border-radius: 4px; font: 11px/1 ui-monospace, Menlo, Consolas, monospace; color: var(--ink); overflow: hidden; }
.sheet .bar { background: #16a34a; color: #fff; padding: 5px 8px; font-family: inherit; font-weight: 700; }
.sheet table { width: 100%; border-collapse: collapse; }
.sheet td, .sheet th { border: 1px solid #e5e7eb; padding: 5px 6px; text-align: left; white-space: nowrap; }
.sheet th { background: #f1f5f9; color: var(--muted); font-weight: 600; }
.sheet tr.new td { background: #dcfce7; animation: pop 3.6s ease-in-out infinite; }
@keyframes pop { 0%, 30% { opacity: 0; } 40%, 100% { opacity: 1; } }
.laptop .base { height: 12px; background: #cbd5e1; border-radius: 0 0 14px 14px; margin: 0 -14px; }
@media (max-width: 560px) {
  .demo { gap: 8px; min-height: 240px; }
  .phone { width: 96px; height: 196px; border-radius: 20px; padding: 7px; }
  .phone .screen { border-radius: 14px; }
  .phone .frame { width: 64px; height: 50px; }
  .phone .bars { width: 44px; height: 26px; }
  .phone .shot { width: 26px; height: 26px; bottom: 12px; }
  .link .dots { width: 30px; }
  .cloud { width: 36px; height: 36px; }
  .laptop { width: 186px; }
  .laptop .sheet { font-size: 8.5px; }
  .sheet td, .sheet th { padding: 4px; }
  .nav .wrap { gap: 12px; }
  .nav-links { gap: 12px; }
  .brand { font-size: 1.05rem; }
}

/* Şerit */
.strip { padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; }
.strip ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.strip li { display: flex; gap: 10px; align-items: center; font-weight: 600; color: var(--ink-2); font-size: .95rem; }
.strip li::before { content: ""; width: 22px; height: 22px; flex: none; border-radius: 50%; background: var(--blue-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232563eb' stroke-width='3'%3E%3Cpath d='M5 12l5 5 9-10'/%3E%3C/svg%3E") center/14px no-repeat; }
@media (max-width: 820px) { .strip ul { grid-template-columns: 1fr 1fr; } }

/* Kart ızgaraları */
.grid { display: grid; gap: 20px; margin-top: 40px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 920px) { .g3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .g2, .g3 { grid-template-columns: 1fr; } }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.card p:last-child { margin-bottom: 0; }
.card.big { padding: 34px; }
.icon { width: 44px; height: 44px; border-radius: 12px; background: var(--blue-50); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.icon svg { width: 22px; height: 22px; stroke: var(--blue); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.ticks { list-style: none; padding: 0; margin: 14px 0 0; }
.ticks li { padding-left: 26px; position: relative; margin: 8px 0; color: var(--ink-2); }
.ticks li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800; }

/* Adımlar */
.steps { counter-reset: s; }
.step { position: relative; padding-top: 58px; }
.step::before { counter-increment: s; content: counter(s); position: absolute; top: 22px; left: 26px; width: 30px; height: 30px; border-radius: 50%; background: var(--blue); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; font-size: .9rem; }
.step h3 { margin-top: 10px; }

/* Fiyat */
.price-card { max-width: 520px; margin: 40px auto 0; text-align: left; border: 2px solid var(--blue); box-shadow: var(--shadow); }
.price { font-size: 3rem; font-weight: 800; letter-spacing: -.03em; }
.price small { font-size: 1rem; color: var(--muted); font-weight: 600; }
.badge { display: inline-block; background: #dcfce7; color: #166534; font-weight: 700; font-size: .85rem; padding: 4px 10px; border-radius: 999px; }

/* SSS */
.faq { max-width: 780px; margin: 36px auto 0; }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 700; font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--blue); font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 12px 0 0; }

/* Son çağrı */
.final { background: var(--ink); color: #fff; border-radius: 22px; padding: 56px 28px; text-align: center; }
.final h2 { color: #fff; }
.final p { color: #cbd5e1; }

/* Altbilgi */
footer { padding: 48px 0 40px; color: var(--muted); font-size: .92rem; border-top: 1px solid var(--line); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 28px; justify-content: space-between; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer nav a { color: var(--ink-2); }

/* Konu sayfaları */
.article { max-width: 780px; }
.article h2 { margin-top: 1.6em; }
.article ol, .article ul { color: var(--ink-2); padding-left: 1.3em; }
.article li { margin: 6px 0; }
.crumb { font-size: .9rem; color: var(--muted); margin-bottom: 14px; }