/* Kalynda Kampüs tanıtım sayfası — panelin tasarım diliyle aynı: tek marka
   lacivert, nötr gri zemin, katmanlı derinlik, üzerine gelince değişim YOK
   (tepki yalnız odak ve basışta), hareket azaltma tercihine uyulur. */
:root {
  --brand: #2A3273;           /* logodan ölçülen kurumsal lacivert */
  --brand-deep: #1C2256;
  --olive: #8CAB2F;           /* yalnız logo ve küçük vurgular */
  --ink: #141933; --ink-2: #464E68; --ink-3: #5D6680;
  --bg: #F6F7FB; --surface: #FFFFFF; --line: #E3E6EF;
  --e1: 0 1px 2px rgba(20,25,51,.06), 0 6px 18px -8px rgba(20,25,51,.14);
  --e2: 0 1px 2px rgba(20,25,51,.08), 0 18px 40px -16px rgba(20,25,51,.28);
  --e3: 0 2px 4px rgba(20,25,51,.10), 0 30px 70px -24px rgba(20,25,51,.40);
  --r: 14px;
  --focus: #5B66D6;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #EEF0FB; --ink-2: #C3C8E4; --ink-3: #9DA3C4;
    --bg: #11142A; --surface: #1A1E3A; --line: #2C3157;
    --e1: 0 1px 0 rgba(255,255,255,.04) inset, 0 8px 20px -10px rgba(0,0,0,.6);
    --e2: 0 1px 0 rgba(255,255,255,.05) inset, 0 20px 40px -16px rgba(0,0,0,.7);
    --e3: 0 1px 0 rgba(255,255,255,.06) inset, 0 30px 70px -24px rgba(0,0,0,.8);
    --focus: #AEB5FF;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
a:focus-visible, summary:focus-visible, .btn:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 8px; }
.wrap { max-width: 1160px; margin: 0 auto; padding-inline: 20px; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--surface); padding: 8px 12px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 12px; }
h1, h2, h3 { margin: 0; text-wrap: balance; letter-spacing: -.02em; }
p { margin: 0; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--brand); }
@media (prefers-color-scheme: dark) { .eyebrow { color: #AEB5FF; } }

/* ---- Düğmeler: basışta 1px iner, üzerine gelince değişmez ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 20px; border-radius: 10px;
  font-weight: 700; font-size: 15px; text-decoration: none; border: 1px solid transparent;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(180deg, #343D86, var(--brand)); color: #fff; box-shadow: 0 1px 0 rgba(255,255,255,.18) inset, 0 8px 20px -8px rgba(42,50,115,.6); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line); box-shadow: var(--e1); }
.btn-light { background: #fff; color: var(--brand); }
.btn-outline-light { color: #fff; border-color: rgba(255,255,255,.45); }

/* ---- Üst çubuk ---- */
.nav { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid var(--line); padding-top: env(safe-area-inset-top, 0px); }
.nav-in { display: flex; align-items: center; gap: 24px; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-text { display: grid; line-height: 1; }
.brand-text b { font-size: 15px; letter-spacing: .18em; }
.brand-text i { font-style: normal; font-size: 13px; font-weight: 600; color: var(--olive); }
.nav-links { display: flex; gap: 22px; margin-left: auto; font-size: 15px; font-weight: 600; color: var(--ink-2); }
.nav-links a { text-decoration: none; }
@media (max-width: 760px) { .nav-links { display: none; } .nav-in > .btn { margin-left: auto; } }

/* ---- Açılış ---- */
.hero { padding-block: 64px 40px; background: var(--bg); }  /* nötr zemin: lacivert başlık lacivert tonun üstüne düşmesin */
.hero-in { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 48px; align-items: center; }
.hero-copy { display: grid; gap: 20px; }
h1 { font-size: clamp(34px, 5vw, 56px); line-height: 1.05; font-weight: 800; }
h1 span { color: var(--brand); }
@media (prefers-color-scheme: dark) { h1 span { color: #AEB5FF; } }
.lede { font-size: 18px; color: var(--ink-2); max-width: 54ch; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.fine { font-size: 14px; color: var(--ink-3); }
.hero-shot { position: relative; margin: 0; padding-bottom: 40px; }
.frame { margin: 0; background: var(--surface); border: 1px solid var(--line); overflow: hidden; }
.frame-desktop { border-radius: 12px; box-shadow: var(--e3); }
.frame-phone { border-radius: 28px; border: 8px solid #0F1330; box-shadow: var(--e3); max-width: 230px; }
.hero-shot .frame-phone { position: absolute; right: -8px; bottom: 0; width: 34%; max-width: 200px; }
@media (max-width: 900px) {
  .hero-in { grid-template-columns: 1fr; }
  .hero-shot .frame-phone { right: 8px; width: 30%; }
}

/* ---- Öne çıkanlar şeridi ---- */
.strip { background: var(--brand); color: #fff; }
.strip-in { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; padding-block: 28px; }
.strip b { display: block; font-size: 22px; font-weight: 800; font-variant-numeric: tabular-nums; }
.strip span { font-size: 14px; color: rgba(236,239,255,.8); }
@media (max-width: 760px) { .strip-in { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---- Bölümler ---- */
.section { padding-block: 80px; }
.section-alt { background: var(--surface); border-block: 1px solid var(--line); }
.sec-head { display: grid; gap: 10px; max-width: 64ch; margin-bottom: 36px; }
h2 { font-size: clamp(26px, 3.4vw, 38px); line-height: 1.15; font-weight: 800; }
.sec-head p:last-child:not(.eyebrow) { color: var(--ink-2); font-size: 17px; }
h3 { font-size: 19px; line-height: 1.3; font-weight: 700; }

.feature { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: 40px; align-items: center; margin-bottom: 48px; }
.feature-copy { display: grid; gap: 14px; }
.feature-copy p { color: var(--ink-2); }
.feature em { font-style: normal; font-weight: 700; color: var(--ink); }
.ticks { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.ticks li { padding-left: 28px; position: relative; color: var(--ink); font-weight: 600; font-size: 15px; }
.ticks li::before { content: ""; position: absolute; left: 0; top: 3px; width: 18px; height: 18px; border-radius: 50%; background: #15803D; box-shadow: inset 0 0 0 5px #15803D, inset 0 0 0 7px #fff; }
@media (max-width: 900px) { .feature { grid-template-columns: 1fr; } }

.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 24px; box-shadow: var(--e1); display: grid; gap: 10px; align-content: start;
  background-image: linear-gradient(180deg, rgba(255,255,255,.6), rgba(255,255,255,0) 40%); }
@media (prefers-color-scheme: dark) { .card { background-image: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,0) 40%); } }
.card p { color: var(--ink-2); font-size: 15px; }
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }

.duo { display: grid; grid-template-columns: auto auto minmax(0, 1fr); gap: 24px; align-items: center; margin-top: 64px; }
.duo .frame-phone { width: 210px; }
.duo-copy { display: grid; gap: 12px; padding-left: 16px; }
.duo-copy p { color: var(--ink-2); }
@media (max-width: 900px) { .duo { grid-template-columns: 1fr 1fr; } .duo .frame-phone { width: auto; max-width: 220px; justify-self: center; } .duo-copy { grid-column: 1 / -1; padding-left: 0; } }

.roles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.role { border-radius: var(--r); padding: 22px; background: var(--bg); border: 1px solid var(--line); display: grid; gap: 8px; align-content: start; }
.role h3 { color: var(--brand); }
@media (prefers-color-scheme: dark) { .role h3 { color: #AEB5FF; } }
.role p { color: var(--ink-2); font-size: 15px; }
@media (max-width: 900px) { .roles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .roles { grid-template-columns: 1fr; } }

.trust { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.trust li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 20px; box-shadow: var(--e1); color: var(--ink-2); font-size: 15px; }
.trust b { display: block; color: var(--ink); font-size: 16px; margin-bottom: 4px; }
@media (max-width: 900px) { .trust { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .trust { grid-template-columns: 1fr; } }

.faq { max-width: 820px; }
.faq details { border-bottom: 1px solid var(--line); padding-block: 18px; }
.faq summary { cursor: pointer; font-weight: 700; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand); font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--ink-2); margin-top: 10px; max-width: 68ch; }

.final { background: radial-gradient(800px 300px at 20% 0%, #3A4494, transparent 70%), var(--brand-deep); color: #fff; }
.final-in { padding-block: 72px; display: grid; gap: 16px; justify-items: start; }
.final p { color: rgba(236,239,255,.85); font-size: 17px; max-width: 58ch; }

.foot { padding-block: 40px calc(40px + env(safe-area-inset-bottom, 0px)); color: var(--ink-3); font-size: 14px; }
.foot-in { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: flex-start; }
.foot b { color: var(--ink); letter-spacing: .14em; }
.foot nav { display: flex; flex-wrap: wrap; gap: 18px; font-weight: 600; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}