/* PresenceLux uygulaması. Harici kaynak yok (CSP: style-src 'self'). WCAG 2.2 AA: kontrast, görünür odak,
   en az 24×24 hedef, 320 px'te yatay kaydırma yok. */
:root {
    color-scheme: light dark;
    --bg: #ffffff; --bg-soft: #f4f7f6; --fg: #0b1a1f; --fg-soft: #33474e;
    --brand: #0b786e; --brand-deep: #075a52; --on-brand: #ffffff; --border: #c9d5d3;
    --hata: #a1260d; --hata-bg: #fdecea; --bilgi-bg: #e6f4f1;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0d1517; --bg-soft: #142024; --fg: #e8efee; --fg-soft: #b4c4c2;
        --brand: #4fc4b6; --brand-deep: #7fd8cc; --on-brand: #06201c; --border: #3a4c50;
        --hata: #ff9a85; --hata-bg: #3a1a14; --bilgi-bg: #12302c;
    }
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--brand-deep); }
:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; }
.atla { position: absolute; left: 16px; top: -60px; background: var(--brand); color: var(--on-brand); padding: 8px 14px; }
.atla:focus { top: 12px; }
.gizli { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.ust { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.logo { font-weight: 700; }
.ust ul { display: flex; flex-wrap: wrap; gap: 16px; list-style: none; margin: 0; padding: 0; align-items: center; }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 28px; line-height: 1.2; margin: 8px 0 16px; }
h2 { font-size: 21px; margin: 32px 0 12px; }
.kart { display: grid; gap: 8px; max-width: 420px; padding: 20px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-soft); }
label { font-weight: 600; margin-top: 8px; }
input, select { font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--fg-soft); border-radius: 6px; padding: 10px 12px; min-height: 44px; width: 100%; }
button { font: inherit; font-weight: 600; min-height: 44px; padding: 10px 18px; border-radius: 6px; border: 0; background: var(--brand); color: var(--on-brand); cursor: pointer; margin-top: 8px; }
button:hover { background: var(--brand-deep); }
button.ikincil { background: transparent; color: var(--brand-deep); border: 1px solid var(--brand); margin: 0; min-height: 36px; padding: 6px 12px; }
button.baglanti { background: none; color: var(--brand-deep); text-decoration: underline; padding: 0 4px; margin: 0; min-height: 24px; }
.hata { color: var(--hata); background: var(--hata-bg); border-left: 4px solid var(--hata); padding: 10px 14px; border-radius: 4px; }
.bilgi { background: var(--bilgi-bg); border-left: 4px solid var(--brand); padding: 10px 14px; border-radius: 4px; }
.ipucu { color: var(--fg-soft); font-size: 15px; margin: 0; }
.liste { padding-left: 0; list-style: none; }
.liste li { padding: 10px 0; border-bottom: 1px solid var(--border); }
.liste form { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; }
.liste button { margin: 0; }
table { width: 100%; border-collapse: collapse; }
td { overflow-wrap: anywhere; }
/* Dar ekranda yatay kaydırma yerine satırlar alt alta (WCAG 1.4.10); sütun adı hücrenin önünde. */
@media (max-width: 600px) {
    table.yigin thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
    table.yigin, table.yigin tbody, table.yigin tr, table.yigin td { display: block; width: 100%; }
    table.yigin tr { border-bottom: 1px solid var(--border); padding: 8px 0; }
    table.yigin td { border: 0; padding: 4px 0; }
    table.yigin td[data-etiket]::before { content: attr(data-etiket) ": "; font-weight: 600; }
}
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); }
blockquote { margin: 6px 0; padding: 6px 12px; border-left: 3px solid var(--border); color: var(--fg-soft); overflow-wrap: anywhere; }
.olgular li, .olgular a, h1, h2 { overflow-wrap: anywhere; }