/* ============================================================================
   BAŞLAYIN (1 Eki 2026) — /basla/ · içerik: vitrin/icerik/sayfa/basla.html
   Görsel dil anasayfa v6 ile aynı (turkuaz geçiş, pastel altın, serin zemin, Lexend);
   anasayfa.css'i yüklememek için gereken birkaç kural burada kendi önekiyle (.kb).
   ========================================================================== */
body.vitrin-basla { background: radial-gradient(900px 860px at 0% 0%, rgba(0,180,219,.11), rgba(0,180,219,0) 62%),
                                radial-gradient(760px 620px at 100% 520px, rgba(198,154,69,.12), rgba(198,154,69,0) 66%),
                                #F4F8F9 no-repeat; }
body.vitrin-basla .vitrin-liste-govde { padding-top: 0; }

.kb {
    --murekkep: #11303B; --metin-2: #4F6A75; --metin-3: #7F96A0;
    --cizgi: rgba(0,98,128,.11); --cizgi-2: rgba(0,98,128,.2);
    --turkuaz: #00B4DB; --turkuaz-d: #0083B0; --turkuaz-m: #006F93;
    --altin: #C69A45; --altin-p: #E8D4A6; --altin-m: #8E6A28;
    --golge: 0 1px 2px rgba(17,48,59,.04), 0 12px 34px -14px rgba(17,48,59,.18);
    --kenar: clamp(16px, 6.7vw, 96px);
    max-width: 1180px; margin: 0 auto; padding: 0 var(--kenar) 96px;
    color: var(--murekkep);
    font-family: "Lexend", system-ui, -apple-system, "Segoe UI", sans-serif;
    font-weight: 300; font-size: 16px; line-height: 1.6;
    overflow-x: clip;
}
.kb *, .kb ::before, .kb ::after { box-sizing: border-box; }
.kb a { text-decoration: none; }
.kb h1, .kb h2 { font-family: inherit; color: var(--murekkep); margin: 0; letter-spacing: -.025em; }
.kb h2 { font-weight: 300; font-size: clamp(30px, 3vw, 42px); line-height: 1.14; }
.kb h2 b { font-weight: 400; color: var(--turkuaz-d); }
.kb :focus-visible { outline: 2px solid var(--turkuaz); outline-offset: 3px; border-radius: 8px; }

.kb-kas { display: inline-flex; align-items: center; gap: 12px; font-size: 12px; font-weight: 400; letter-spacing: .24em; text-transform: uppercase; color: var(--altin-m); }
.kb-kas::before { content: ""; width: 28px; height: 1px; background: var(--altin); }

/* 1 · Açılış — "ücretsizdir" vaadi */
.kb-acilis { text-align: center; padding: 56px 0 8px; display: flex; flex-direction: column; align-items: center; }
.kb-acilis h1 { margin-top: 18px; font-weight: 300; font-size: clamp(40px, 5.4vw, 72px); line-height: 1.06; letter-spacing: -.035em; }
.kb-acilis h1 b { font-weight: 400; background: linear-gradient(120deg, var(--turkuaz), var(--turkuaz-d)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.kb-giris { max-width: 620px; margin: 26px 0 0; font-size: 19px; color: var(--metin-2); }
.kb-niye { max-width: 560px; margin: 18px 0 0; font-size: 15px; color: var(--altin-m); }
.kb-niye span { color: var(--altin); margin-right: 4px; }

/* 2 · Kimler için — üç kart */
.kb-kitle { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 56px; }
.kb-kart { position: relative; display: flex; flex-direction: column; align-items: flex-start; padding: 28px 26px 26px; border-radius: 24px; background: #fff; border: 1px solid var(--cizgi); box-shadow: var(--golge); }
.kb-ikon { width: 56px; height: 56px; border-radius: 18px; display: flex; align-items: center; justify-content: center; color: var(--turkuaz-d);
    background: linear-gradient(150deg, #E3F5FA, #CDEBF3); }
.kb-kart h2 { margin-top: 18px; font-size: 22px; font-weight: 400; letter-spacing: -.01em; }
.kb-kart p { margin: 6px 0 18px; color: var(--metin-2); font-size: 15px; }
.kb-hap { margin-top: auto; display: inline-flex; align-items: center; height: 28px; padding: 0 12px; border-radius: 14px; font-size: 12px; font-weight: 400; letter-spacing: .08em; text-transform: uppercase;
    color: var(--altin-m); background: #F6EDD9; }

/* 3 · Giriş tek dokunuş */
.kb-giris-bolum { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 56px; align-items: center; margin-top: 88px; }
.kb-giris-metin h2 { margin-top: 14px; }
.kb-adim { list-style: none; margin: 28px 0 0; padding: 0; display: flex; flex-direction: column; gap: 18px; }
.kb-adim li { display: flex; gap: 16px; align-items: flex-start; color: var(--metin-2); }
.kb-adim i { flex-shrink: 0; width: 34px; height: 34px; border-radius: 17px; display: flex; align-items: center; justify-content: center; font-style: normal; font-size: 14px; font-weight: 500;
    color: #fff; background: linear-gradient(120deg, var(--turkuaz), var(--turkuaz-d)); }
.kb-adim b { display: block; font-weight: 400; color: var(--murekkep); }
.kb-not { margin: 26px 0 0; padding: 14px 18px; border-radius: 14px; background: #EAF3F5; color: var(--metin-2); font-size: 14px; }

/* Kolay giriş ekranının küçük temsili */
.kb-ekran { display: flex; justify-content: center; padding: 34px; border-radius: 28px; background: linear-gradient(150deg, #0B6E8F, #0A4F66); }
.kb-ekran-kart { width: 100%; max-width: 300px; display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 28px 24px 22px; border-radius: 20px; background: #fff;
    box-shadow: 0 30px 60px -28px rgba(0,0,0,.55); }
.kb-ekran-kart img { width: 44px; height: auto; }
.kb-ekran-kart > b { font-weight: 400; font-size: 17px; margin-bottom: 6px; }
.kb-ekran-dugme { width: 100%; height: 44px; border-radius: 23px; border: 1px solid var(--cizgi-2); display: flex; align-items: center; justify-content: center; gap: 10px; font-size: 15px; font-weight: 400; color: var(--murekkep); }
.kb-ekran-alt { margin-top: 6px; font-size: 12px; color: var(--metin-3); }

/* 4 · Son çağrı */
.kb-son { position: relative; overflow: hidden; margin-top: 88px; padding: 76px 32px; border-radius: 28px; text-align: center; color: #EAF6F8;
    background: linear-gradient(130deg, #0B6E8F, #0A4F66); display: flex; flex-direction: column; align-items: center; }
.kb-rozet { position: absolute; right: -170px; top: 50%; margin-top: -300px; width: 600px; height: 600px; opacity: .16; pointer-events: none;
    -webkit-mask: url("/medya/logo/rozet.webp") center / contain no-repeat; mask: url("/medya/logo/rozet.webp") center / contain no-repeat;
    background: linear-gradient(160deg, #F1E2BD, #C69A45 70%); }
.kb-son h2 { position: relative; color: #fff; font-size: clamp(30px, 3.4vw, 48px); }
.kb-son h2 b { color: var(--altin-p); }
.kb-son p { position: relative; margin: 14px 0 28px; font-size: 18px; color: #B9D6DE; }
.kb-btn { position: relative; display: inline-flex; align-items: center; justify-content: center; height: 58px; padding: 0 36px; border-radius: 999px;
    background: linear-gradient(120deg, #E8D4A6, #C69A45); color: #2A2210 !important; font-size: 17px; font-weight: 500; box-shadow: 0 16px 34px -16px rgba(0,0,0,.6); }
.kb-btn:hover { filter: brightness(1.05); }

@media (max-width: 900px) {
    .kb-acilis { padding-top: 28px; }
    .kb-giris { font-size: 17px; }
    .kb-kitle { grid-template-columns: 1fr; gap: 12px; margin-top: 40px; }
    .kb-kart { display: grid; grid-template-columns: 52px 1fr; column-gap: 16px; padding: 20px; }
    .kb-ikon { width: 52px; height: 52px; grid-row: span 3; }
    .kb-kart h2 { margin-top: 0; font-size: 19px; }
    .kb-kart p { margin: 2px 0 10px; font-size: 14px; }
    .kb-hap { justify-self: start; height: 24px; font-size: 11px; }
    .kb-giris-bolum { grid-template-columns: 1fr; gap: 32px; margin-top: 64px; }
    .kb-ekran { padding: 24px; }
    .kb-son { margin-top: 64px; padding: 56px 20px; }
    .kb-rozet { right: -330px; opacity: .12; }
    .kb-btn { width: 100%; max-width: 340px; }
}