/* CEZVE tanıtım sitesi — marka dili: lacivert-siyah zemin + turkuaz-mavi degrade.
   Saf CSS, build yok; tek sayfa pazarlama. */
/* v3 madde 15: AÇIK tema — tüm yüzeylerle aynı dil */
:root {
  --zemin: #f4f6f9;
  --panel: #ffffff;
  --kart: #ffffff;
  --kart-ust: #eef1f6;
  --metin: #161b26;
  --soluk: #64748b;
  --cizgi: #e2e7ef;
  --turkuaz: #f97316;
  --mavi: #2563eb;
  --yesil: #16a34a;
  --sari: #f59e0b;
  --kirmizi: #dc2626;
  --grad: linear-gradient(135deg, #f97316, #ea580c);
  --grad-koyu: #ffffff;
  --radius: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--zemin);
  color: var(--metin);
  font-size: 16px;
  line-height: 1.65;
}
a { color: var(--turkuaz); text-decoration: none; }
.ic { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.ic.dar { max-width: 720px; }

h1 { font-size: clamp(34px, 5.2vw, 54px); line-height: 1.12; letter-spacing: -.5px; }
h2 { font-size: clamp(26px, 3.6vw, 36px); text-align: center; letter-spacing: -.3px; }
h3 { font-size: 17px; margin-bottom: 6px; }
.alt-baslik { text-align: center; color: var(--soluk); margin: 10px auto 40px; max-width: 560px; }
.grad-yazi {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- düğmeler ---------- */
.btn {
  display: inline-block; padding: 13px 26px; border-radius: 13px;
  background: var(--grad); color: var(--grad-koyu); font-weight: 800;
  box-shadow: 0 6px 22px rgba(249, 115, 22, .25);
  transition: transform .12s, box-shadow .12s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(249, 115, 22, .35); }
.btn.ikincil {
  background: var(--kart); color: var(--metin); font-weight: 650;
  border: 1px solid var(--cizgi); box-shadow: none;
}
.btn.ikincil:hover { background: var(--kart-ust); border-color: rgba(249, 115, 22, .4); }
.btn.kucuk { padding: 9px 18px; font-size: 14px; border-radius: 10px; }

/* ---------- nav ---------- */
nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .88); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--cizgi);
}
nav .ic { display: flex; align-items: center; gap: 26px; height: 64px; }
.logo { display: flex; align-items: center; gap: 8px; font-size: 20px; color: var(--metin); }
.logo .fincan {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 10px; background: var(--grad); font-size: 18px;
}
nav .linkler { display: flex; gap: 22px; flex: 1; }
nav .linkler a { color: var(--soluk); font-weight: 600; font-size: 14.5px; }
nav .linkler a:hover { color: var(--metin); }

/* ---------- hero ---------- */
.hero {
  padding: 76px 0 90px; position: relative; overflow: hidden;
  background:
    radial-gradient(900px 560px at 85% -10%, rgba(249, 115, 22, .10), transparent 60%),
    radial-gradient(700px 480px at -10% 110%, rgba(59, 130, 246, .09), transparent 60%);
}
.iki-sutun { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; }
.buyuk-metin { color: var(--soluk); font-size: 18.5px; margin: 22px 0 30px; max-width: 480px; }
.buyuk-metin b { color: var(--metin); }
.cta-satir { display: flex; gap: 14px; flex-wrap: wrap; }
.rozetler { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 30px; }
.rozetler span { color: var(--soluk); font-size: 13.5px; font-weight: 600; }

/* telefon mockup */
.mockup-alan { position: relative; display: flex; justify-content: center; }
.parilti {
  position: absolute; inset: -30px; z-index: 0; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(249, 115, 22, .14), transparent);
}
.telefon {
  position: relative; z-index: 1; width: 300px;
  background: var(--panel); border: 1.5px solid var(--cizgi); border-radius: 30px;
  padding: 18px 14px; box-shadow: 0 30px 70px rgba(15, 23, 42, .18);
}
.tel-ust { font-weight: 800; padding: 2px 6px 12px; }
.masa-izgara { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.masa {
  border-radius: 13px; padding: 11px; background: var(--kart);
  border: 1.5px solid var(--cizgi); min-height: 86px;
  display: flex; flex-direction: column; gap: 3px;
}
.masa b { font-size: 14.5px; }
.masa span { color: var(--soluk); font-size: 11.5px; flex: 1; }
.masa.dolu { border-color: rgba(251, 191, 36, .55); }
.masa.hedef { border-color: rgba(52, 211, 153, .55); }
.masa.uyari { border-color: rgba(248, 113, 113, .65); background: linear-gradient(160deg, rgba(248, 113, 113, .10), transparent 60%) var(--kart); }
.etiket {
  font-style: normal; font-size: 10.5px; font-weight: 700; align-self: flex-start;
  padding: 2px 8px; border-radius: 999px; background: var(--kart-ust); color: var(--soluk);
}
.etiket.sari { color: var(--sari); } .etiket.yesil { color: var(--yesil); } .etiket.kirmizi { color: var(--kirmizi); }
.bildirim-karti {
  display: flex; gap: 10px; align-items: center; margin-top: 12px;
  background: var(--kart-ust); border: 1px solid rgba(249, 115, 22, .35);
  border-radius: 13px; padding: 10px 12px; font-size: 12.5px; line-height: 1.4;
}
.bildirim-karti small { color: var(--soluk); }
.nokta {
  width: 10px; height: 10px; border-radius: 50%; background: var(--turkuaz); flex: none;
  box-shadow: 0 0 0 0 rgba(249, 115, 22, .5); animation: nabiz 2s infinite;
}
@keyframes nabiz {
  0% { box-shadow: 0 0 0 0 rgba(249, 115, 22, .45); }
  70% { box-shadow: 0 0 0 9px rgba(249, 115, 22, 0); }
  100% { box-shadow: 0 0 0 0 rgba(249, 115, 22, 0); }
}

/* ---------- bölümler ---------- */
section { padding: 84px 0; }
section.koyu { background: var(--panel); border-top: 1px solid var(--cizgi); border-bottom: 1px solid var(--cizgi); }

/* nasıl çalışır */
.adimlar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.adim {
  background: var(--panel); border: 1px solid var(--cizgi); border-radius: var(--radius);
  padding: 22px 18px; position: relative;
}
.adim-no {
  width: 30px; height: 30px; border-radius: 9px; background: var(--grad);
  color: var(--grad-koyu); font-weight: 800; display: flex; align-items: center;
  justify-content: center; margin-bottom: 14px; font-size: 15px;
}
.adim p { color: var(--soluk); font-size: 13.8px; }

/* özellik kartları */
.kart-izgara { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kart {
  background: var(--kart); border: 1px solid var(--cizgi); border-radius: var(--radius);
  padding: 22px 18px; transition: transform .15s, border-color .15s;
}
.kart:hover { transform: translateY(-4px); border-color: rgba(249, 115, 22, .45); }
.kart .ikon { font-size: 26px; margin-bottom: 10px; }
.kart p { color: var(--soluk); font-size: 13.8px; }

/* demo */
.demo-izgara { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.demo-kart {
  background: var(--panel); border: 1px solid var(--cizgi); border-radius: var(--radius);
  padding: 26px 22px; text-align: center; display: flex; flex-direction: column; gap: 12px;
}
.demo-kart p { color: var(--soluk); font-size: 14px; flex: 1; }
.giris-bilgi {
  font-family: ui-monospace, Consolas, monospace; font-size: 13px;
  background: var(--zemin); border: 1px dashed rgba(249, 115, 22, .4);
  border-radius: 10px; padding: 10px; user-select: all;
}

/* fiyat */
.fiyat-kart {
  background: var(--kart); border: 1.5px solid rgba(249, 115, 22, .4);
  border-radius: 20px; padding: 34px 30px; text-align: center;
  box-shadow: 0 20px 60px rgba(15, 23, 42, .15);
}
.fiyat-baslik { font-weight: 800; color: var(--turkuaz); letter-spacing: 1px; font-size: 14px; text-transform: uppercase; }
.fiyat-deger { font-size: 30px; font-weight: 800; margin: 10px 0 20px; }
.fiyat-kart ul { list-style: none; text-align: left; max-width: 480px; margin: 0 auto 26px; }
.fiyat-kart li { padding: 7px 0; color: var(--soluk); border-bottom: 1px solid var(--cizgi); font-size: 14.5px; }
.fiyat-kart li:last-child { border-bottom: none; }

/* footer */
footer { padding: 56px 0 70px; text-align: center; border-top: 1px solid var(--cizgi); }
footer .logo { justify-content: center; margin-bottom: 12px; }
footer p { color: var(--soluk); font-size: 14.5px; }
.soluk-yazi { margin-top: 18px; font-size: 13px !important; opacity: .7; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  nav .linkler { display: none; }
  nav .ic { justify-content: space-between; }
  .iki-sutun { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 48px 0 64px; }
  .buyuk-metin { max-width: none; }
  .adimlar, .kart-izgara { grid-template-columns: 1fr 1fr; }
  .demo-izgara { grid-template-columns: 1fr; }
  section { padding: 60px 0; }
}
@media (max-width: 560px) {
  .adimlar, .kart-izgara { grid-template-columns: 1fr; }
  .telefon { width: 100%; max-width: 320px; }
}