/* =========================================================
   ISURUS Bilişim ve Ağ Hizmetleri — Kurumsal Web Sitesi
   Tasarım sistemi ve tüm sayfa stilleri
   ========================================================= */

/* ---------- 1. Tokenlar ---------- */
:root {
  /* Marka renkleri (logodan türetildi) */
  --navy-950: #00122A;
  --navy-900: #001A3C;
  --navy-800: #042A5B;
  --navy-700: #073A78;
  --blue-600: #0B5CAD;
  --blue-500: #1273D4;
  --blue-400: #2E90F0;
  --blue-300: #6DB7FF;
  --blue-100: #D8EAFF;
  --blue-50:  #EFF6FF;

  --ink:      #0B1524;
  --ink-soft: #35455E;
  --muted:    #5F708B;
  --line:     #E3E9F2;
  --line-soft:#EEF2F8;
  --bg:       #FFFFFF;
  --bg-soft:  #F5F8FC;
  --bg-tint:  #F0F5FB;

  --ok:       #0F9D58;
  --warn:     #E8A33D;

  --radius-s: 10px;
  --radius:   16px;
  --radius-l: 24px;
  --radius-xl:32px;

  --shadow-s: 0 1px 2px rgba(0,26,60,.06), 0 2px 8px rgba(0,26,60,.05);
  --shadow:   0 4px 14px rgba(0,26,60,.08), 0 12px 32px rgba(0,26,60,.07);
  --shadow-l: 0 18px 48px rgba(0,26,60,.14);

  --maxw: 1200px;
  --pad: clamp(20px, 5vw, 48px);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Space Grotesk", var(--font);

  --ease: cubic-bezier(.4, 0, .2, 1);
}

/* ---------- 2. Sıfırlama ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { color: var(--blue-500); }
button { font: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.18;
  letter-spacing: -.02em;
  margin: 0 0 .5em;
  font-weight: 700;
}
h1 { font-size: clamp(2.1rem, 5.2vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); }
p  { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

:focus-visible { outline: 3px solid var(--blue-400); outline-offset: 3px; border-radius: 6px; }

/* ---------- 3. Yardımcılar ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section--soft { background: var(--bg-soft); }
.section--tint { background: linear-gradient(180deg, #fff 0%, var(--bg-tint) 100%); }
.center { text-align: center; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--blue-600); margin-bottom: 14px;
}
.eyebrow::before {
  content: ""; width: 22px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--blue-600), var(--blue-300));
}
.center .eyebrow::before { display: none; }
.center .eyebrow {
  background: var(--blue-50); border: 1px solid var(--blue-100);
  padding: 7px 16px; border-radius: 999px;
}

.lead { font-size: clamp(1.02rem, 1.6vw, 1.18rem); color: var(--muted); max-width: 62ch; }
.center .lead { margin-inline: auto; }

.section-head { max-width: 760px; margin-bottom: clamp(36px, 5vw, 60px); }
.section-head.center { margin-inline: auto; }

/* ---------- 4. Butonlar ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 26px; border-radius: 999px; border: 1px solid transparent;
  font-weight: 600; font-size: .97rem; letter-spacing: -.01em;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn:hover { transform: translateY(-2px); }
.btn--primary {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
  color: #fff; box-shadow: 0 6px 18px rgba(11,92,173,.32);
}
.btn--primary:hover { color: #fff; box-shadow: 0 12px 28px rgba(11,92,173,.42); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--blue-400); color: var(--blue-600); background: var(--blue-50); }
.btn--onDark { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.28); backdrop-filter: blur(6px); }
.btn--onDark:hover { background: rgba(255,255,255,.16); color: #fff; border-color: rgba(255,255,255,.5); }
.btn--sm { padding: 10px 20px; font-size: .9rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }
.center .btn-row { justify-content: center; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: .95rem; color: var(--blue-600);
}
.link-arrow svg { width: 16px; height: 16px; transition: transform .2s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---------- 5. Başlık / Navigasyon ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 90;
  transition: background .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.header__inner {
  display: flex; align-items: center; gap: 20px;
  height: 78px;
}
.header.is-solid {
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--line);
  box-shadow: 0 2px 18px rgba(0,26,60,.06);
}
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand img { height: 40px; width: auto; transition: opacity .25s var(--ease); }
.brand__light { display: block; }
.brand__dark  { display: none; }
.header.is-solid .brand__light { display: none; }
.header.is-solid .brand__dark  { display: block; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 10px 13px; white-space: nowrap; border-radius: 999px; font-size: .95rem; font-weight: 500;
  color: rgba(255,255,255,.86); transition: background .2s var(--ease), color .2s var(--ease);
}
.nav a:hover, .nav a.is-active { background: rgba(255,255,255,.14); color: #fff; }
.header.is-solid .nav a { color: var(--ink-soft); }
.header.is-solid .nav a:hover, .header.is-solid .nav a.is-active { background: var(--blue-50); color: var(--blue-600); }

.header__actions { display: flex; align-items: center; gap: 10px; }

.lang {
  display: inline-flex; padding: 3px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,.3); background: rgba(255,255,255,.1);
}
.header.is-solid .lang { border-color: var(--line); background: var(--bg-soft); }
.lang button {
  border: 0; background: transparent; color: rgba(255,255,255,.8);
  padding: 6px 12px; border-radius: 999px; font-size: .8rem; font-weight: 700; letter-spacing: .04em;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.header.is-solid .lang button { color: var(--muted); }
.lang button[aria-pressed="true"] { background: #fff; color: var(--navy-900); }
.header.is-solid .lang button[aria-pressed="true"] { background: var(--navy-900); color: #fff; }

.burger {
  display: none; width: 44px; height: 44px; border-radius: 12px;
  border: 1px solid rgba(255,255,255,.3); background: rgba(255,255,255,.1);
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.header.is-solid .burger { border-color: var(--line); background: #fff; }
.burger span { display: block; width: 18px; height: 2px; border-radius: 2px; background: #fff; transition: transform .25s var(--ease), opacity .25s var(--ease); }
.header.is-solid .burger span { background: var(--ink); }
.burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Sayfa iç başlığı her zaman koyu zemin üstünde başlar → .header--onDark yoksa katı */
.header--static { position: fixed; }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(1100px 700px at 78% -10%, var(--navy-700) 0%, transparent 60%),
              linear-gradient(160deg, var(--navy-900) 0%, var(--navy-950) 55%, #000E22 100%);
  color: #fff; padding: clamp(140px, 17vw, 200px) 0 clamp(80px, 11vw, 130px);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(109,183,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(109,183,255,.055) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(900px 560px at 25% 30%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(900px 560px at 25% 30%, #000 0%, transparent 78%);
}
.hero__glow {
  position: absolute; width: 720px; height: 720px; right: -180px; top: -220px;
  background: radial-gradient(circle, rgba(46,144,240,.34) 0%, transparent 66%);
  filter: blur(20px); pointer-events: none;
}
.hero__shark {
  position: absolute; right: -6%; bottom: -8%; width: min(62%, 860px);
  opacity: .085; pointer-events: none; transform: rotate(-4deg);
}
.hero .wrap { position: relative; z-index: 2; }
.hero h1 { color: #fff; max-width: 17ch; }
.hero h1 em { font-style: normal; background: linear-gradient(100deg, var(--blue-300), #fff 70%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__lead { font-size: clamp(1.05rem, 1.9vw, 1.28rem); color: rgba(255,255,255,.78); max-width: 60ch; margin-bottom: 34px; }
.hero .eyebrow {
  color: var(--blue-300); background: rgba(109,183,255,.1);
  border: 1px solid rgba(109,183,255,.28); padding: 7px 16px; border-radius: 999px;
}
.hero .eyebrow::before { display: none; }

.hero__stats {
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px;
  margin-top: clamp(48px, 7vw, 76px);
  border-top: 1px solid rgba(255,255,255,.14); padding-top: 34px;
}
.hero__stats div strong {
  display: block; font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: #fff; line-height: 1.1; letter-spacing: -.03em;
}
.hero__stats div > span { font-size: .88rem; color: rgba(255,255,255,.62); display: block; }
.hero__stats div strong span { font-size: inherit; color: inherit; }

/* ---------- 7. Logo şeridi / güven bandı ---------- */
.trustbar { background: var(--navy-950); color: rgba(255,255,255,.62); padding: 22px 0; }
.trustbar__inner { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 34px; justify-content: center; font-size: .84rem; letter-spacing: .06em; text-transform: uppercase; font-weight: 600; }
.trustbar__inner span { display: inline-flex; align-items: center; gap: 9px; }
.trustbar__inner svg { width: 16px; height: 16px; color: var(--blue-300); }

/* ---------- 8. Kartlar / ızgaralar ---------- */
.grid { display: grid; gap: clamp(16px, 2.2vw, 24px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0,1fr)); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l);
  padding: clamp(24px, 3vw, 34px);
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s var(--ease);
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--blue-100); }
.card h3 { margin-bottom: 10px; }
.card p { font-size: .96rem; color: var(--muted); }

.icon {
  width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center;
  background: linear-gradient(140deg, var(--navy-900), var(--blue-600));
  color: #fff; margin-bottom: 20px; box-shadow: 0 8px 20px rgba(11,92,173,.24);
}
.icon svg { width: 26px; height: 26px; }
.icon--soft { background: var(--blue-50); color: var(--blue-600); box-shadow: none; border: 1px solid var(--blue-100); }

/* Öne çıkan hizmet kartı */
.service {
  display: flex; flex-direction: column;
}
.service ul { margin: 18px 0 22px; display: grid; gap: 9px; }
.service li { position: relative; padding-left: 26px; font-size: .93rem; color: var(--ink-soft); }
.service li::before {
  content: ""; position: absolute; left: 0; top: .52em; width: 14px; height: 8px;
  border-left: 2px solid var(--blue-500); border-bottom: 2px solid var(--blue-500);
  transform: rotate(-45deg);
}
.service .link-arrow { margin-top: auto; }
.service--featured {
  background: linear-gradient(155deg, var(--navy-900) 0%, var(--navy-800) 100%);
  border-color: transparent; color: rgba(255,255,255,.76);
}
.service--featured h3 { color: #fff; }
.service--featured p { color: rgba(255,255,255,.72); }
.service--featured li { color: rgba(255,255,255,.8); }
.service--featured li::before { border-color: var(--blue-300); }
.service--featured .icon { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2); box-shadow: none; }
.service--featured .link-arrow { color: var(--blue-300); }
.service__tag {
  position: absolute; top: 20px; right: 20px;
  font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 999px;
  background: rgba(109,183,255,.16); color: var(--blue-300); border: 1px solid rgba(109,183,255,.32);
}

/* ---------- 9. Uyum / vurgu bandı ---------- */
.callout {
  background: linear-gradient(120deg, var(--navy-900), var(--navy-700));
  border-radius: var(--radius-xl); color: #fff; padding: clamp(30px, 4.5vw, 54px);
  display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(24px, 4vw, 48px); align-items: center;
  position: relative; overflow: hidden;
}
.callout::before {
  content: ""; position: absolute; right: -120px; top: -120px; width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(109,183,255,.3), transparent 65%); pointer-events: none;
}
.callout h2 { color: #fff; }
.callout p { color: rgba(255,255,255,.78); }
.callout__points { display: grid; gap: 14px; position: relative; }
.callout__points li { display: flex; gap: 12px; align-items: flex-start; font-size: .95rem; color: rgba(255,255,255,.86); }
.callout__points svg { width: 20px; height: 20px; color: var(--blue-300); flex: none; margin-top: 2px; }

/* ---------- 10. Özellik listesi ---------- */
.feature { display: flex; gap: 18px; }
.feature .icon { margin-bottom: 0; width: 46px; height: 46px; border-radius: 14px; }
.feature .icon svg { width: 22px; height: 22px; }
.feature h3 { font-size: 1.08rem; margin-bottom: 6px; }
.feature p { font-size: .94rem; color: var(--muted); margin: 0; }

/* ---------- 11. Süreç adımları ---------- */
.steps { counter-reset: step; display: grid; gap: 22px; grid-template-columns: repeat(4, minmax(0,1fr)); }
.step { position: relative; padding-top: 30px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--font-display); font-size: 2.4rem; font-weight: 700;
  color: var(--blue-100); line-height: 1; display: block; margin-bottom: 12px;
}
.step::after {
  content: ""; position: absolute; top: 0; left: 0; right: 14px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--blue-500), var(--blue-100));
}
.step h3 { font-size: 1.05rem; }
.step p { font-size: .93rem; color: var(--muted); margin: 0; }

/* ---------- 12. Sektörler ---------- */
.sectors { display: flex; flex-wrap: wrap; gap: 12px; }
.sectors li {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 20px; border-radius: 999px; background: #fff;
  border: 1px solid var(--line); font-size: .93rem; font-weight: 500; color: var(--ink-soft);
  transition: border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}
.sectors li:hover { border-color: var(--blue-300); transform: translateY(-2px); box-shadow: var(--shadow-s); }
.sectors svg { width: 18px; height: 18px; color: var(--blue-600); }

/* ---------- 13. Paketler ---------- */
.plans { display: grid; gap: 22px; grid-template-columns: repeat(3, minmax(0,1fr)); align-items: start; }
.plan { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l); padding: clamp(26px, 3vw, 34px); }
.plan--best { border-color: var(--blue-500); box-shadow: var(--shadow); position: relative; }
.plan--best::before {
  content: attr(data-badge); position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--blue-600), var(--blue-400)); color: #fff;
  font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  padding: 6px 16px; border-radius: 999px; white-space: nowrap;
}
.plan h3 { margin-bottom: 4px; }
.plan__desc { font-size: .92rem; color: var(--muted); min-height: 3em; }
.plan ul { display: grid; gap: 10px; margin: 22px 0 26px; padding-top: 22px; border-top: 1px solid var(--line-soft); }
.plan li { position: relative; padding-left: 26px; font-size: .92rem; }
.plan li::before {
  content: ""; position: absolute; left: 0; top: .5em; width: 13px; height: 7px;
  border-left: 2px solid var(--ok); border-bottom: 2px solid var(--ok); transform: rotate(-45deg);
}
.plan .btn { width: 100%; }

/* ---------- 14. SSS ---------- */
.faq { max-width: 860px; margin-inline: auto; display: grid; gap: 12px; }
.faq details {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 4px 22px; transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.faq details[open] { border-color: var(--blue-300); box-shadow: var(--shadow-s); }
.faq summary {
  list-style: none; cursor: pointer; padding: 18px 34px 18px 0; position: relative;
  font-weight: 600; color: var(--ink); font-size: 1.02rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 4px; top: 50%; width: 11px; height: 11px;
  border-right: 2px solid var(--blue-600); border-bottom: 2px solid var(--blue-600);
  transform: translateY(-70%) rotate(45deg); transition: transform .25s var(--ease);
}
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq p { padding: 0 0 20px; font-size: .96rem; color: var(--muted); }

/* ---------- 15. İletişim ---------- */
.contact { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(28px, 5vw, 60px); align-items: start; }
.contact__info { display: grid; gap: 22px; }
.contact__item { display: flex; gap: 16px; align-items: flex-start; }
.contact__item .icon { width: 44px; height: 44px; border-radius: 13px; margin: 0; }
.contact__item .icon svg { width: 20px; height: 20px; }
.contact__item h3 { font-size: 1rem; margin-bottom: 2px; }
.contact__item p, .contact__item a { font-size: .95rem; color: var(--muted); margin: 0; }
.contact__item a:hover { color: var(--blue-600); }

.form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-l); padding: clamp(24px, 3.4vw, 38px); box-shadow: var(--shadow-s); }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .86rem; font-weight: 600; color: var(--ink); margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 16px; font: inherit; font-size: .96rem; color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius-s); background: var(--bg-soft);
  transition: border-color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--blue-400); background: #fff; box-shadow: 0 0 0 4px rgba(46,144,240,.14);
}
.field--row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form__note { font-size: .82rem; color: var(--muted); margin-top: 14px; }
.form__status { display: none; margin-top: 14px; padding: 12px 16px; border-radius: var(--radius-s); font-size: .9rem; background: var(--blue-50); border: 1px solid var(--blue-100); color: var(--blue-600); }
.form__status.is-visible { display: block; }


/* Bot tuzağı — ekranda görünmez, ekran okuyucudan da gizli */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- 16. Alt CTA ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-700) 70%, var(--blue-600));
  color: #fff; border-radius: var(--radius-xl); padding: clamp(34px, 5vw, 62px);
  display: flex; flex-wrap: wrap; gap: 26px; align-items: center; justify-content: space-between;
  position: relative; overflow: hidden;
}
.cta-band::after {
  content: ""; position: absolute; left: -80px; bottom: -140px; width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(255,255,255,.14), transparent 62%);
}
.cta-band h2 { color: #fff; margin-bottom: 8px; max-width: 20ch; }
.cta-band p { color: rgba(255,255,255,.78); max-width: 46ch; margin: 0; }
.cta-band > div { position: relative; z-index: 1; }

/* ---------- 17. Alt bilgi ---------- */
.footer { background: var(--navy-950); color: rgba(255,255,255,.6); padding: clamp(52px, 7vw, 78px) 0 0; }
.footer a { color: rgba(255,255,255,.66); }
.footer a:hover { color: #fff; }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: clamp(26px, 4vw, 48px); }
.footer img.footer__logo { height: 42px; width: auto; margin-bottom: 18px; }
.footer p { font-size: .93rem; max-width: 40ch; }
.footer h4 { color: #fff; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 16px; font-family: var(--font); font-weight: 700; }
.footer ul { display: grid; gap: 10px; font-size: .93rem; }
.footer__bottom {
  margin-top: clamp(38px, 5vw, 56px); border-top: 1px solid rgba(255,255,255,.1);
  padding: 22px 0; display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between;
  font-size: .85rem;
}
.social { display: flex; gap: 10px; margin-top: 20px; }
.social a {
  width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12);
  transition: background .2s var(--ease), transform .2s var(--ease);
}
.social a:hover { background: var(--blue-600); transform: translateY(-2px); }
.social svg { width: 17px; height: 17px; }

/* ---------- 18. İç sayfa başlığı ---------- */
.pagehead {
  background: radial-gradient(900px 520px at 82% 0%, var(--navy-700) 0%, transparent 62%),
              linear-gradient(150deg, var(--navy-900), var(--navy-950));
  color: #fff; padding: clamp(128px, 15vw, 168px) 0 clamp(56px, 7vw, 84px); position: relative; overflow: hidden;
}
.pagehead::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(109,183,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(109,183,255,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(760px 420px at 20% 40%, #000, transparent 76%);
  -webkit-mask-image: radial-gradient(760px 420px at 20% 40%, #000, transparent 76%);
}
.pagehead .wrap { position: relative; z-index: 1; }
.pagehead h1 { color: #fff; max-width: 20ch; }
.pagehead p { color: rgba(255,255,255,.76); max-width: 60ch; font-size: clamp(1rem, 1.6vw, 1.15rem); }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: .85rem; color: rgba(255,255,255,.55); margin-bottom: 18px; }
.crumbs a { color: rgba(255,255,255,.72); }
.crumbs a:hover { color: #fff; }
.crumbs span { opacity: .5; }

/* ---------- 19. İçerik blokları (detay sayfaları) ---------- */
.prose h2 { margin-top: 0; }
.prose h3 { margin-top: 34px; }
.prose ul { display: grid; gap: 10px; margin: 16px 0 24px; }
.prose ul li { position: relative; padding-left: 26px; font-size: .97rem; }
.prose ul li::before {
  content: ""; position: absolute; left: 0; top: .55em; width: 13px; height: 7px;
  border-left: 2px solid var(--blue-500); border-bottom: 2px solid var(--blue-500); transform: rotate(-45deg);
}
.split { display: grid; grid-template-columns: 1.35fr .85fr; gap: clamp(30px, 5vw, 64px); align-items: start; }
.aside {
  position: sticky; top: 104px; background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: var(--radius-l); padding: clamp(24px, 3vw, 32px);
}
.aside h3 { font-size: 1.1rem; }
.aside ul { display: grid; gap: 12px; margin: 18px 0 24px; }
.aside li { font-size: .92rem; color: var(--muted); display: flex; gap: 10px; }
.aside li svg { width: 17px; height: 17px; color: var(--blue-600); flex: none; margin-top: 3px; }

.spec { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec__row { display: grid; grid-template-columns: 260px 1fr; gap: 0; border-bottom: 1px solid var(--line-soft); }
.spec__row:last-child { border-bottom: 0; }
.spec__row > div { padding: 16px 22px; font-size: .95rem; }
.spec__row > div:first-child { background: var(--bg-soft); font-weight: 600; color: var(--ink); }


/* Bilgilendirme kutusu (yasal not vb.) */
.notice {
  border-left: 4px solid var(--warn); background: #FDF8F1;
  border-radius: 0 var(--radius) var(--radius) 0; padding: 18px 22px;
  font-size: .93rem; color: var(--ink-soft); max-width: 900px;
}
.notice p { margin: 0; }

/* ---------- 20. Animasyonlar ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------- 21. Duyarlı (responsive) ---------- */
@media (max-width: 1080px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; }
  .aside { position: static; }
}
@media (max-width: 920px) {
  .nav {
    position: fixed; inset: 78px 0 auto 0; flex-direction: column; align-items: stretch; gap: 2px;
    background: #fff; border-bottom: 1px solid var(--line); padding: 14px var(--pad) 22px;
    box-shadow: var(--shadow); transform: translateY(-140%); transition: transform .32s var(--ease);
    max-height: calc(100vh - 78px); overflow-y: auto;
  }
  .nav.is-open { transform: none; }
  .nav a { color: var(--ink-soft); padding: 13px 14px; border-radius: 12px; font-size: 1rem; }
  .nav a:hover, .nav a.is-active { background: var(--blue-50); color: var(--blue-600); }
  .burger { display: flex; }
  .header__actions .btn--cta { display: none; }
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  .callout { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; }
  .hero__stats { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 24px 12px; }
  .spec__row { grid-template-columns: 1fr; }
  .spec__row > div:first-child { border-bottom: 1px solid var(--line-soft); }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .grid--4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .field--row { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; }
  .btn { width: 100%; }
  .btn-row { width: 100%; }
  .header__inner { height: 68px; }
  .nav { inset-block-start: 68px; }
  .brand img { height: 32px; }
}

/* ---------- 22. Yazdırma ---------- */
@media print {
  .header, .burger, .cta-band, .form, .footer__bottom { display: none !important; }
  body { color: #000; }
  .hero, .pagehead { background: none; color: #000; padding: 20px 0; }
  .hero h1, .pagehead h1 { color: #000; }
}