:root { color-scheme: light; --ink: #24304A; --ink2: #56667F; --pink: #DC6F9A; --blue: #4A9BE0; --soft: #EAF4FD; --line: #D3DCEA; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; color: var(--ink); background: transparent; /* düz renk html'dedir: body'ye verilirse çapraz zemini (body::before) örter */ line-height: 1.55; }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; background: linear-gradient(135deg, #9CCBF6 0 50%, #F5B4D0 50% 100%); }
a { color: inherit; }
.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 18px; background: rgba(255,255,255,.82); border-bottom: 1px solid rgba(255,255,255,.9); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; letter-spacing: .04em; }
.brand img { border-radius: 50%; border: 2px solid #fff; display: block; }
.top nav { display: flex; gap: 6px; }
.top nav a { text-decoration: none; font-weight: 600; font-size: .92rem; padding: 8px 12px; border-radius: 12px; color: var(--ink2); }
.top nav a:hover { background: var(--soft); color: var(--ink); }
main { max-width: 980px; margin: 0 auto; padding: 0 18px 40px; }
.hero { text-align: center; padding: 56px 0 44px; }
.hero-logo { width: 168px; height: 168px; border-radius: 50%; border: 6px solid #fff; box-shadow: 0 12px 40px rgba(36,48,74,.18); object-fit: cover; }
.kicker { margin: 22px 0 0; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--ink2); font-size: .82rem; }
h1 { margin: 4px 0 10px; font-size: clamp(2.2rem, 8vw, 3.6rem); letter-spacing: .02em; line-height: 1.1; }
.lead { margin: 0 auto 26px; max-width: 34ch; font-size: 1.15rem; color: var(--ink2); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.btn { display: inline-block; padding: 14px 26px; border-radius: 16px; background: var(--ink); color: #fff; font-weight: 700; text-decoration: none; }
.btn.ghost { background: rgba(255,255,255,.75); color: var(--ink); border: 1.5px solid #fff; }
.block { background: rgba(255,255,255,.62); border: 1px solid rgba(255,255,255,.85); border-radius: 26px; padding: 30px 22px; margin: 0 0 22px; box-shadow: 0 8px 28px rgba(74,155,224,.12); }
.block.alt { background: rgba(255,255,255,.5); }
h2 { margin: 0 0 6px; font-size: 1.6rem; }
.sub { margin: 0 0 22px; color: var(--ink2); }
.block:not(:has(.grid)) .sub { margin-bottom: 0; }
.grid { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
@media (min-width: 720px) { .grid { grid-template-columns: repeat(3, 1fr); } }
.card { background: #fff; border-radius: 20px; padding: 18px 16px; box-shadow: 0 2px 10px rgba(36,48,74,.06); }
.card .em { font-size: 2rem; display: block; margin-bottom: 6px; }
.card h3 { margin: 0 0 4px; font-size: 1.02rem; }
.card p { margin: 0; color: var(--ink2); font-size: .9rem; }
footer { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 18px; color: var(--ink2); font-size: .9rem; }
footer img { border-radius: 50%; border: 2px solid #fff; }
footer p { margin: 0; }
@media (max-width: 520px) { .top nav a { padding: 8px 8px; font-size: .85rem; } .brand span { display: none; } }
[hidden] { display: none !important; }

html { background: #BBDBF8; } /* koyu modda boş sayfa siyah görünmesin; çapraz zemin body::before ile bunun üstüne çizilir */