:root {
  --bg: #0f1722;
  --bg-2: #152131;
  --panel: #1b2a3d;
  --line: #2a3d55;
  --text: #e6edf5;
  --muted: #9fb0c4;
  --accent: #2d8be0;
  --accent-2: #ffb547;
  --radius: 14px;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
}
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* üst çubuk */
.top {
  position: sticky; top: 0; z-index: 10;
  background: rgba(15, 23, 34, .88); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; text-decoration: none; }
.brand img { width: 32px; height: 32px; }
.nav { display: flex; gap: 20px; margin-left: auto; align-items: center; }
.nav a { text-decoration: none; color: var(--muted); font-size: 15px; }
.nav a:hover { color: var(--text); }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 10px; border: 1px solid transparent;
  font-weight: 600; text-decoration: none; cursor: pointer; font-size: 16px;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #3b98ec; }
.btn-ghost { border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--muted); }
.nav .btn { padding: 8px 16px; font-size: 15px; color: #fff; }

/* giriş */
.hero { padding: 80px 0 60px; background: radial-gradient(1000px 500px at 80% -10%, #1d4f8a55, transparent); }
.eyebrow { color: var(--accent-2); font-weight: 600; font-size: 14px; letter-spacing: .06em; text-transform: uppercase; }
h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.12; margin: 12px 0 18px; }
h2 { font-size: clamp(26px, 3.4vw, 36px); line-height: 1.2; margin: 0 0 12px; }
h3 { font-size: 18px; margin: 0 0 6px; }
.lead { color: var(--muted); font-size: 19px; margin: 0 0 28px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.small { color: var(--muted); font-size: 14px; margin-top: 14px; }

.hero-text { text-align: center; max-width: 820px; }
.hero-text .lead { margin-left: auto; margin-right: auto; max-width: 680px; }
.hero-text .cta { justify-content: center; }
.wrap.wide { max-width: 1320px; margin-top: 48px; }
.shot {
  margin: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: #0b1119; box-shadow: 0 30px 80px #0008;
}
.shot img { width: 100%; height: auto; }
.shot figcaption { padding: 12px 16px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }
.gal { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.gallery { padding-top: 24px; }

/* bölümler */
section { padding: 72px 0; }
section.alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { max-width: 680px; margin-bottom: 36px; }
.sec-head p { color: var(--muted); margin: 0; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px;
}
.card p { color: var(--muted); margin: 0; font-size: 15px; }
.ic {
  width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center;
  background: #2d8be022; color: var(--accent); margin-bottom: 14px;
}
.ic svg { width: 22px; height: 22px; }

.cmds { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.cmds code {
  font: 600 13px/1 Consolas, monospace; padding: 7px 10px; border-radius: 7px;
  background: var(--panel); border: 1px solid var(--line); color: var(--text);
}

.two { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.list { list-style: none; padding: 0; margin: 0; }
.list li { padding: 10px 0 10px 30px; position: relative; border-bottom: 1px solid var(--line); color: var(--muted); }
.list li b { color: var(--text); font-weight: 600; }
.list li::before {
  content: ""; position: absolute; left: 4px; top: 17px; width: 12px; height: 7px;
  border-left: 2px solid var(--accent-2); border-bottom: 2px solid var(--accent-2); transform: rotate(-45deg);
}

.band { text-align: center; }
.band p { color: var(--muted); max-width: 560px; margin: 0 auto 26px; }

/* indirme sayfası */
.dl-box {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px; display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center;
}
.dl-box img { width: 72px; height: 72px; }
.dl-box h2 { font-size: 24px; margin: 0 0 4px; }
.dl-box .meta { color: var(--muted); font-size: 14px; }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li {
  counter-increment: s; background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 16px 18px 16px 60px; position: relative; color: var(--muted);
}
.steps li b { color: var(--text); }
.steps li::before {
  content: counter(s); position: absolute; left: 16px; top: 14px; width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent); color: #fff; font-weight: 700; display: grid; place-items: center;
}
table.req { width: 100%; border-collapse: collapse; }
table.req td { padding: 12px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
table.req td:first-child { color: var(--muted); width: 40%; }
.note {
  border-left: 3px solid var(--accent-2); background: #ffb5470f; padding: 14px 18px; border-radius: 0 10px 10px 0;
  color: var(--muted); font-size: 15px;
}
details { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 10px 0 0; }

footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); }

@media (max-width: 860px) {
  .two, .gal { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr 1fr; }
  .dl-box { grid-template-columns: 1fr; text-align: center; justify-items: center; }
  .nav a:not(.btn) { display: none; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .wrap { padding: 0 16px; }
  .hero { padding: 48px 0 40px; }
  section { padding: 52px 0; }
}