/* NetTakip — tanıtım sayfası stili.
   Görsel dil tasarim-onizleme.html'den: koyu zemin, mavi→camgöbeği→mor vurgu
   gradyanı, yuvarlak kartlar, iPhone tipi çerçeveler. */

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

:root {
  --zemin: #060b18;
  --zemin2: #0b1220;
  --kart: rgba(255, 255, 255, .045);
  --kart2: rgba(255, 255, 255, .085);
  --metin: #f1f5f9;
  --baslik: #ffffff;
  --soluk: #94a3b8;
  --vurgu: #4C8DFF;
  --vurgu2: #22D3EE;
  --vurgu3: #7C3AED;
  --kenar: rgba(255, 255, 255, .09);
  --golge: 0 30px 70px -25px rgba(0, 0, 0, .85);
  --yuvarlak: 18px;
}

html[data-theme="light"] {
  --zemin: #eef2f9;
  --zemin2: #ffffff;
  --kart: #ffffff;
  --kart2: #f1f5fc;
  --metin: #0f172a;
  --baslik: #0b1220;
  --soluk: #5b6b83;
  --kenar: rgba(15, 23, 42, .10);
  --golge: 0 24px 50px -20px rgba(15, 23, 42, .25);
}

html { scroll-behavior: smooth; }

body {
  background: var(--zemin);
  color: var(--metin);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ⚠️ height:auto şart — width/height attribute'ları presentational hint olarak
   sabit yükseklik uyguluyor; bu olmadan görseller dikeyde eziliyor. */
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

.progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--vurgu), var(--vurgu2));
  z-index: 100;
}

/* ---------------- ÜST MENÜ ---------------- */
.ust {
  position: sticky; top: 0; z-index: 90;
  backdrop-filter: blur(16px);
  background: color-mix(in srgb, var(--zemin) 82%, transparent);
  border-bottom: 1px solid var(--kenar);
}
.ust-ic {
  max-width: 1240px; margin: 0 auto; padding: 13px 24px;
  display: flex; align-items: center; gap: 20px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; color: var(--baslik); }
.logo img { border-radius: 10px; }
.menu { display: flex; gap: 22px; margin-left: auto; font-size: 14px; color: var(--soluk); }
.menu a:hover { color: var(--baslik); }
.tema {
  background: var(--kart); border: 1px solid var(--kenar); border-radius: 10px;
  width: 38px; height: 34px; cursor: pointer; color: var(--metin); font-size: 15px;
}
.tema:hover { background: var(--kart2); }

/* ---------------- BUTON ---------------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 22px; border-radius: 13px; border: 0;
  background: linear-gradient(135deg, var(--vurgu), var(--vurgu3));
  color: #fff; font-weight: 700; font-size: 15px; cursor: pointer;
  box-shadow: 0 12px 28px -10px rgba(76, 141, 255, .75);
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 18px 34px -12px rgba(76, 141, 255, .9); }
.btn-kucuk { padding: 9px 15px; font-size: 13.5px; }
.btn-ikincil {
  background: var(--kart); color: var(--metin);
  border: 1px solid var(--kenar); box-shadow: none;
}
.btn-ikincil:hover { background: var(--kart2); box-shadow: none; }
.btn-bekliyor { opacity: .72; }

/* ---------------- HERO ---------------- */
.hero {
  max-width: 1240px; margin: 0 auto; padding: 64px 24px 48px;
  position: relative; overflow: hidden;
}
.orb { position: absolute; border-radius: 50%; filter: blur(90px); pointer-events: none; }
.orb1 { width: 420px; height: 420px; background: rgba(76, 141, 255, .22); top: -140px; right: 4%; }
.orb2 { width: 360px; height: 360px; background: rgba(124, 58, 237, .18); top: 160px; right: -8%; }

.hero-ic {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center;
  position: relative; z-index: 1;
}
.rozet {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(76, 141, 255, .14); border: 1px solid rgba(76, 141, 255, .35);
  color: #9dc2ff; padding: 6px 14px; border-radius: 999px;
  font-size: 13px; font-weight: 600; margin-bottom: 20px;
}
html[data-theme="light"] .rozet { color: #1d4ed8; }

h1 { font-size: clamp(30px, 4.6vw, 52px); line-height: 1.12; letter-spacing: -.03em; color: var(--baslik); margin-bottom: 16px; }
.grad {
  background: linear-gradient(90deg, var(--vurgu), var(--vurgu2), var(--vurgu3));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { color: var(--soluk); font-size: 17px; max-width: 560px; margin-bottom: 24px; }
.lead b { color: var(--metin); }

.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-bottom: 22px; }
.durum {
  font-size: 12.5px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  color: #fbbf24; background: rgba(251, 191, 36, .12);
  border: 1px solid rgba(251, 191, 36, .35); border-radius: 999px; padding: 5px 12px;
}
.durum-aktif { color: #2ECC71; background: rgba(46, 204, 113, .12); border-color: rgba(46, 204, 113, .35); }

.rozetler { display: flex; flex-wrap: wrap; gap: 10px; }
.rozet-kucuk {
  background: var(--kart); border: 1px solid var(--kenar); border-radius: 10px;
  padding: 7px 13px; font-size: 13px; color: var(--soluk);
}
.rozet-kucuk b { color: var(--baslik); }

/* telefon çerçevesi */
.hero-telefon { position: relative; display: grid; place-items: center; }
.telefon {
  width: 340px; background: #05070d; border-radius: 44px; padding: 12px;
  box-shadow: var(--golge); border: 1px solid rgba(255, 255, 255, .1);
}
.telefon-ekran {
  background: #fff; border-radius: 33px; overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .08);
}
.telefon-ekran img { width: 100%; }

.balon {
  position: absolute; background: var(--zemin2); border: 1px solid var(--kenar);
  border-radius: 14px; padding: 9px 14px; box-shadow: var(--golge);
  font-size: 13px; line-height: 1.35;
}
.balon b { display: block; color: var(--baslik); font-size: 14px; }
.balon span { color: var(--soluk); font-size: 12px; }
.balon-1 { top: 8%; left: -4%; }
.balon-2 { bottom: 10%; right: -6%; }

.istatistik {
  display: flex; flex-wrap: wrap; gap: 40px; margin-top: 52px;
  padding-top: 30px; border-top: 1px solid var(--kenar); position: relative; z-index: 1;
}
.istatistik b { display: block; font-size: 28px; letter-spacing: -.02em; color: var(--baslik); }
.istatistik span { font-size: 13px; color: var(--soluk); }

/* ---------------- BÖLÜM ---------------- */
.bolum { max-width: 1240px; margin: 0 auto; padding: 62px 24px; }
.bolum-basi { margin-bottom: 34px; max-width: 760px; }
.etiket {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--vurgu);
  background: rgba(76, 141, 255, .14); border: 1px solid rgba(76, 141, 255, .3);
  padding: 5px 11px; border-radius: 8px;
}
html[data-theme="light"] .etiket { color: #1d4ed8; }
.bolum-basi h2 { font-size: clamp(24px, 3.2vw, 36px); letter-spacing: -.02em; color: var(--baslik); margin: 14px 0 8px; }
.bolum-basi p { color: var(--soluk); }

/* ---------------- KARTLAR ---------------- */
.kartlar { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.kart {
  background: var(--kart); border: 1px solid var(--kenar); border-radius: var(--yuvarlak);
  padding: 24px; transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.kart:hover { transform: translateY(-3px); border-color: rgba(76, 141, 255, .45); background: var(--kart2); }
.kart-ikon {
  width: 44px; height: 44px; border-radius: 13px; display: grid; place-items: center;
  background: rgba(76, 141, 255, .14); border: 1px solid rgba(76, 141, 255, .28);
  font-size: 21px; margin-bottom: 14px;
}
.kart h3 { font-size: 17px; color: var(--baslik); margin-bottom: 7px; letter-spacing: -.01em; }
.kart p { font-size: 14.5px; color: var(--soluk); }

/* ---------------- İKİ SÜTUN ---------------- */
.iki-sutun { display: grid; grid-template-columns: 1fr 360px; gap: 48px; align-items: center; }
.liste { display: grid; gap: 16px; }
.liste-oge {
  background: var(--kart); border: 1px solid var(--kenar); border-left: 3px solid var(--vurgu);
  border-radius: 14px; padding: 15px 18px;
}
.liste-oge b { display: block; color: var(--baslik); font-size: 15.5px; margin-bottom: 3px; }
.liste-oge span { font-size: 14px; color: var(--soluk); }
.telefon-kucuk {
  border-radius: 34px; overflow: hidden; background: #05070d; padding: 9px;
  border: 1px solid var(--kenar); box-shadow: var(--golge);
}
.telefon-kucuk img { border-radius: 26px; }

/* ---------------- GALERİ ---------------- */
.galeri {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 22px;
}
.galeri-oge { margin: 0; }
.galeri-oge img {
  width: 100%; border-radius: 22px; background: #05070d; padding: 7px;
  border: 1px solid var(--kenar); box-shadow: var(--golge);
}
.galeri-oge figcaption { text-align: center; font-size: 13px; color: var(--soluk); margin-top: 10px; }

/* ---------------- KUTU ---------------- */
.kutu {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px;
  background: var(--kart2); border: 1px solid var(--kenar); border-radius: var(--yuvarlak); padding: 26px;
}
.kutu-oge b { display: block; color: var(--baslik); font-size: 15.5px; margin-bottom: 5px; }
.kutu-oge span { font-size: 14px; color: var(--soluk); }
.kutu-oge a { color: #93c5fd; text-decoration: underline; }

/* ---------------- CTA ---------------- */
.cta-blok {
  max-width: 1240px; margin: 20px auto 60px; padding: 52px 24px;
  text-align: center; border-radius: 26px;
  background:
    radial-gradient(1000px 320px at 50% -30%, rgba(124, 58, 237, .30), transparent 70%),
    radial-gradient(700px 260px at 50% 130%, rgba(34, 211, 238, .22), transparent 70%),
    var(--zemin2);
  border: 1px solid var(--kenar);
}
.cta-blok h2 { font-size: clamp(23px, 3.2vw, 34px); letter-spacing: -.02em; color: var(--baslik); margin-bottom: 10px; }
.cta-blok p { color: var(--soluk); margin-bottom: 24px; }
.cta-blok .cta { justify-content: center; }

/* ---------------- ALT ---------------- */
.alt { border-top: 1px solid var(--kenar); background: var(--zemin2); }
.alt-ic {
  max-width: 1240px; margin: 0 auto; padding: 40px 24px 26px;
  display: flex; flex-wrap: wrap; gap: 26px; justify-content: space-between; align-items: flex-start;
}
.alt-sol p { font-size: 13.5px; color: var(--soluk); margin-top: 10px; max-width: 320px; }
.alt-menu { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; color: var(--soluk); }
.alt-menu a:hover { color: var(--baslik); }
.alt-alt {
  max-width: 1240px; margin: 0 auto; padding: 16px 24px 30px;
  border-top: 1px solid var(--kenar);
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  color: #64748b; font-size: 12.5px;
}

/* ---------------- DUYARLI ---------------- */
@media (max-width: 940px) {
  .hero-ic { grid-template-columns: 1fr; }
  .hero-telefon { order: -1; margin-bottom: 10px; }
  .iki-sutun { grid-template-columns: 1fr; }
  .telefon-kucuk { max-width: 300px; margin: 0 auto; }
  .menu { display: none; }
  .balon { display: none; }
  .istatistik { gap: 26px; }
}
@media (max-width: 560px) {
  .ust-ic { padding: 11px 16px; gap: 12px; }
  .btn-kucuk span { display: none; }
  .hero { padding: 40px 18px 32px; }
  .bolum { padding: 44px 18px; }
  .telefon { width: 250px; }
}