/* FDWNET — tek sayfa, sade */
:root {
  --bg: #05060a;
  --bg-soft: #080a11;
  --panel: rgba(255, 255, 255, 0.032);
  --line: rgba(255, 255, 255, 0.085);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #eef2fa;
  --muted: #8f9ab1;
  --accent: #3b82f6;
  --accent-soft: #7db4ff;
  --accent-2: #22d3ee;
  --wrap: 1080px;
  --radius: 18px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; }
a { color: inherit; text-decoration: none; }

::selection { background: rgba(59, 130, 246, 0.35); color: #fff; }

:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 3px;
  border-radius: 6px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 10px 16px;
  background: var(--text);
  color: var(--bg);
  border-radius: 0 0 8px 0;
  font-size: 14px;
  font-weight: 600;
}
.skip:focus { left: 0; }

/* ---------- Üst çubuk ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5, 6, 10, 0.72);
  border-bottom: 1px solid transparent;
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  transition: border-color 0.25s ease, background 0.25s ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(5, 6, 10, 0.88);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}
.brand picture { display: block; }
.brand img {
  height: 26px;
  width: auto;
  filter: drop-shadow(0 4px 14px rgba(37, 99, 235, 0.35));
}
.brand-name {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: #dfe8f7;
}

.nav {
  display: flex;
  gap: 26px;
  margin-left: auto;
  font-size: 14px;
  color: var(--muted);
}
.nav a { transition: color 0.2s ease; }
.nav a:hover { color: var(--text); }

/* ---------- Düğmeler ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--text);
  color: #06080d;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn:hover {
  background: #fff;
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(210, 227, 255, 0.16);
}
.btn .ico { width: 17px; height: 17px; flex: 0 0 auto; }
.btn-sm { padding: 9px 16px; font-size: 13.5px; margin-left: 4px; }

.btn-ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--text);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow: none;
}

/* ---------- Kahraman ---------- */
.hero {
  position: relative;
  padding: clamp(24px, 4vw, 44px) 0 clamp(36px, 5vw, 64px);
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -120px 0 auto 0;
  height: 620px;
  z-index: -2;
  background:
    radial-gradient(600px 380px at 78% 34%, rgba(37, 99, 235, 0.24), transparent 70%),
    radial-gradient(520px 320px at 18% 8%, rgba(34, 211, 238, 0.10), transparent 72%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(700px 420px at 50% 10%, #000 20%, transparent 78%);
  mask-image: radial-gradient(700px 420px at 50% 10%, #000 20%, transparent 78%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(28px, 5vw, 64px);
  min-height: min(470px, calc(100svh - 210px));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 22px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow-line {
  display: block;
  width: 30px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
}

h1 {
  margin: 0;
  font-size: clamp(2.15rem, 5.4vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 660;
  text-wrap: balance;
}
h1 em {
  font-style: normal;
  background: linear-gradient(100deg, #9ad8ff 0%, #4b8dff 55%, #7db4ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  max-width: 46ch;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.3vw, 1.09rem);
  line-height: 1.68;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-mark {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}
.hero-mark picture { display: block; width: 100%; max-width: 460px; }
.hero-mark img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 34px 70px rgba(29, 78, 216, 0.42));
}

/* ---------- Bölümler ---------- */
.section {
  padding: clamp(68px, 9vw, 112px) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.section-alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.022), rgba(255, 255, 255, 0) 65%);
}

.section-head { max-width: 640px; }
.kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-soft);
}
.kicker::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}
.section-head h2, .contact h2 {
  margin: 0;
  font-size: clamp(1.65rem, 3.6vw, 2.45rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
  font-weight: 640;
  text-wrap: balance;
}
.section-sub {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
  max-width: 54ch;
}

/* ---------- Hizmet kartları ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 46px 0 0;
  padding: 0;
  list-style: none;
}
.card {
  padding: 26px 24px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.042), rgba(255, 255, 255, 0.012));
  transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}
.card:hover {
  border-color: rgba(59, 130, 246, 0.42);
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.075), rgba(255, 255, 255, 0.014));
  transform: translateY(-3px);
}
.card-ico {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(59, 130, 246, 0.26);
  border-radius: 11px;
  background: rgba(59, 130, 246, 0.11);
  color: var(--accent-soft);
}
.card-ico svg { width: 20px; height: 20px; }
.card h3 {
  margin: 18px 0 8px;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: -0.012em;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ---------- Süreç ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin: 46px 0 0;
  padding: 0;
  list-style: none;
}
.step {
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.step-num {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums;
  color: var(--accent-soft);
}
.step h3 {
  margin: 14px 0 8px;
  font-size: 1rem;
  font-weight: 600;
}
.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
  margin: 58px 0 0;
  padding: 0;
  list-style: none;
}
.fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 16px;
  border-left: 2px solid rgba(59, 130, 246, 0.42);
}
.fact strong {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.fact span {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

/* ---------- İletişim ---------- */
.contact {
  position: relative;
  padding: clamp(84px, 12vw, 140px) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  isolation: isolate;
}
.contact::before {
  content: "";
  position: absolute;
  inset: auto 0 -40% 0;
  height: 520px;
  z-index: -1;
  background: radial-gradient(520px 300px at 50% 70%, rgba(37, 99, 235, 0.20), transparent 72%);
  pointer-events: none;
}
.contact-inner {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.contact .kicker { justify-content: center; }
.contact-text {
  margin: 16px 0 0;
  max-width: 48ch;
  color: var(--muted);
  font-size: 0.98rem;
}
.mail {
  margin: 34px 0 26px;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(59, 130, 246, 0.45);
  font-size: clamp(1.15rem, 2.6vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: #d3e3ff;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.mail:hover { color: #fff; border-color: var(--accent-soft); }

/* ---------- Alt bilgi ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 26px 0;
  font-size: 12.5px;
  color: var(--muted);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px 28px;
}
.brand-sm img { height: 18px; filter: none; opacity: 0.92; }
.brand-sm .brand-name { font-size: 11px; letter-spacing: 0.18em; color: #b9c6dc; }
.copyright { margin: 0; }
.footer-nav { display: flex; gap: 20px; }
.footer-nav a { transition: color 0.2s ease; }
.footer-nav a:hover { color: var(--text); }

/* ---------- Görünme animasyonu ---------- */
/* .js sınıfı <head>'de eklenir: JS yoksa içerik doğrudan görünür kalır. */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.js .reveal.in { opacity: 1; transform: none; }
.cards .card:nth-child(2) { transition-delay: 0.05s; }
.cards .card:nth-child(3) { transition-delay: 0.1s; }
.cards .card:nth-child(4) { transition-delay: 0.05s; }
.cards .card:nth-child(5) { transition-delay: 0.1s; }
.cards .card:nth-child(6) { transition-delay: 0.15s; }

/* ---------- Duyarlı ---------- */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    min-height: 0;
    gap: 30px;
  }
  .hero-mark { order: -1; justify-content: flex-start; }
  .hero-mark picture { max-width: 300px; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: 1fr; gap: 22px; }
  .facts { grid-template-columns: 1fr; gap: 18px; margin-top: 44px; }
  .step { padding-top: 18px; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 20px; }
  .nav { display: none; }
  .header-inner { justify-content: space-between; min-height: 62px; }
  .hero { padding-top: 34px; }
  .hero-mark picture { max-width: 230px; }
  h1 { font-size: clamp(2rem, 9.4vw, 2.6rem); }
  .actions .btn { flex: 1 1 auto; }
  .cards { grid-template-columns: 1fr; margin-top: 34px; }
  .card { padding: 22px 20px 24px; }
  .contact-inner { align-items: flex-start; text-align: left; }
  .contact .kicker { justify-content: flex-start; }
  .contact .btn { width: 100%; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
}