/* Derneğim App — kurulum sihirbazı */
:root {
    --k-mavi: #2563eb;
    --k-mavi-koyu: #12307d;
    --k-mavi-acik: #2a8cf0;
    --k-metin: #0f172a;
    --k-metin-2: #475569;
    --k-soluk: #64748b;
    --k-kenar: #e2e8f0;
    --k-kutu: #ffffff;
    --k-zemin: #eef4fd;
    --k-yesil: #15803d;
    --k-kirmizi: #b91c1c;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
.k-govde {
    font-family: Poppins, system-ui, -apple-system, "Segoe UI", sans-serif;
    color: var(--k-metin);
    background: linear-gradient(160deg, #e6efff 0%, #f6f9ff 55%, #eaf6ff 100%);
    min-height: 100vh;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 28px 16px;
    -webkit-font-smoothing: antialiased;
}
.k-arka { position: fixed; inset: 0; overflow: hidden; z-index: 0; pointer-events: none; }
.k-arka span { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .55; }
.k-arka span:nth-child(1) { width: 420px; height: 420px; background: #93c5fd; top: -120px; left: -100px; }
.k-arka span:nth-child(2) { width: 360px; height: 360px; background: #a5f3fc; bottom: -120px; right: -60px; }
.k-arka span:nth-child(3) { width: 260px; height: 260px; background: #c7d2fe; top: 40%; left: 60%; }

.k-kart {
    position: relative; z-index: 1;
    width: 100%; max-width: 640px;
    background: var(--k-kutu);
    border-radius: 28px;
    box-shadow: 0 30px 60px -20px rgba(30, 64, 175, .28), 0 2px 6px rgba(15, 23, 42, .05);
    padding: 40px 40px 34px;
}
.k-alt { position: relative; z-index: 1; color: var(--k-soluk); font-size: .78rem; margin: 18px 0 0; text-align: center; }

/* Karşılama */
.k-karsilama { text-align: center; }
.k-logo { width: 150px; height: 150px; margin: 0 auto 6px; filter: drop-shadow(0 18px 26px rgba(37, 99, 235, .35)); }
.k-logo img { width: 100%; height: 100%; display: block; }
.k-marka { font-size: 2.9rem; font-weight: 800; color: var(--k-mavi-koyu); margin: 4px 0 0; letter-spacing: -1px; line-height: 1.1; }
.k-marka-alt { display: flex; align-items: center; justify-content: center; gap: 14px; color: var(--k-mavi-acik); font-weight: 600; font-size: 1.55rem; line-height: 1.2; }
.k-marka-alt::before, .k-marka-alt::after { content: ""; width: 56px; height: 4px; border-radius: 4px; background: var(--k-mavi-acik); }
.k-gelistiren { margin: 18px auto 6px; color: var(--k-metin-2); font-size: .98rem; max-width: 420px; line-height: 1.55; }
.k-gelistiren strong { color: var(--k-mavi-koyu); }
.k-aciklama { color: var(--k-soluk); font-size: .92rem; margin: 6px auto 26px; max-width: 440px; line-height: 1.6; }

/* Düğmeler */
.k-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    font: 600 1rem Poppins, sans-serif; color: #fff; text-decoration: none;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border: 0; border-radius: 14px; padding: 13px 22px; cursor: pointer;
    box-shadow: 0 10px 22px -10px rgba(37, 99, 235, .8);
    transition: transform .12s, box-shadow .12s;
}
.k-btn:hover { transform: translateY(-1px); }
.k-btn:disabled { opacity: .6; cursor: wait; transform: none; }
.k-btn-buyuk { font-size: 1.1rem; padding: 16px 30px; min-width: 260px; }
.k-btn-ikincil { background: #fff; color: var(--k-mavi); border: 1.5px solid #bfdbfe; box-shadow: none; }
.k-btn-yesil { background: linear-gradient(135deg, #16a34a, #15803d); box-shadow: 0 10px 22px -10px rgba(22, 163, 74, .8); }
.k-link { background: none; border: 0; color: var(--k-soluk); font: 500 .92rem Poppins, sans-serif; cursor: pointer; padding: 8px; }
.k-link:hover { color: var(--k-mavi); }

/* Adım göstergesi */
.k-adimlar { display: flex; justify-content: space-between; gap: 6px; margin: -6px 0 28px; padding: 0; list-style: none; counter-reset: a; }
.k-adimlar li { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; font-size: .72rem; color: var(--k-soluk); font-weight: 600; position: relative; text-align: center; }
.k-adimlar li::before {
    counter-increment: a; content: counter(a);
    width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center;
    background: #f1f5f9; color: var(--k-soluk); font-size: .85rem; font-weight: 700; position: relative; z-index: 1;
}
.k-adimlar li:not(:last-child)::after { content: ""; position: absolute; top: 16px; left: calc(50% + 18px); right: calc(-50% + 18px); height: 3px; border-radius: 3px; background: #e2e8f0; }
.k-adimlar li.bitti::before { content: "✓"; background: #dcfce7; color: var(--k-yesil); }
.k-adimlar li.bitti::after { background: #86efac; }
.k-adimlar li.aktif { color: var(--k-mavi); }
.k-adimlar li.aktif::before { background: var(--k-mavi); color: #fff; box-shadow: 0 0 0 5px #dbeafe; }

/* Adım içeriği */
.k-baslik { display: flex; align-items: center; gap: 12px; margin: 0 0 6px; font-size: 1.45rem; color: var(--k-metin); }
.k-baslik i { color: var(--k-mavi); font-size: 1.7rem; }
.k-alt-baslik { color: var(--k-soluk); margin: 0 0 22px; line-height: 1.6; font-size: .93rem; }
.k-alan { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.k-alan > span { font-weight: 600; font-size: .86rem; color: var(--k-metin-2); }
.k-alan small { color: var(--k-soluk); font-size: .78rem; }
.k-girdi {
    width: 100%; font: 500 1rem Poppins, sans-serif; color: var(--k-metin);
    border: 1.5px solid var(--k-kenar); border-radius: 12px; padding: 12px 14px; background: #f8fafc;
    transition: border-color .15s, box-shadow .15s;
}
.k-girdi:focus { outline: none; border-color: var(--k-mavi); background: #fff; box-shadow: 0 0 0 4px #dbeafe; }
textarea.k-girdi { resize: vertical; min-height: 70px; }
.k-seri { font: 600 1.3rem ui-monospace, "SF Mono", Menlo, Consolas, monospace; letter-spacing: 2px; text-align: center; text-transform: uppercase; padding: 16px; }
.k-seri.dogru { border-color: #22c55e; }
.k-seri.yanlis { border-color: #f87171; }
.k-ipucu { font-size: .82rem; min-height: 1.3em; text-align: center; color: var(--k-soluk); margin: 4px 0 0; }
.k-ipucu.dogru { color: var(--k-yesil); }
.k-ipucu.yanlis { color: var(--k-kirmizi); }
.k-iki { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
.k-secim { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border: 1.5px solid var(--k-kenar); border-radius: 14px; cursor: pointer; margin-bottom: 10px; }
.k-secim input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--k-mavi); }
.k-secim strong { display: block; }
.k-secim small { color: var(--k-soluk); }
.k-secim:has(input:checked) { border-color: var(--k-mavi); background: #f5f9ff; }
.k-mesaj { border-radius: 12px; padding: 12px 14px; font-size: .9rem; margin: 0 0 16px; display: flex; gap: 10px; align-items: flex-start; line-height: 1.5; }
.k-mesaj i { font-size: 1.25rem; flex-shrink: 0; }
.k-mesaj.hata { background: #fef2f2; color: var(--k-kirmizi); }
.k-mesaj.tamam { background: #f0fdf4; color: var(--k-yesil); }
.k-mesaj.bilgi { background: #eff6ff; color: #1e40af; }
.k-alt-cubuk { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 24px; }
.k-alt-cubuk .k-btn { min-width: 170px; }
.k-logo-sec { display: flex; align-items: center; gap: 14px; }
.k-logo-onizleme { width: 64px; height: 64px; border-radius: 16px; border: 1.5px dashed var(--k-kenar); display: grid; place-items: center; overflow: hidden; color: var(--k-soluk); font-size: 1.6rem; flex-shrink: 0; background: #f8fafc; }
.k-logo-onizleme img { width: 100%; height: 100%; object-fit: contain; }
details.k-ac { border: 1.5px solid var(--k-kenar); border-radius: 14px; padding: 12px 16px; margin-top: 6px; }
details.k-ac summary { cursor: pointer; font-weight: 600; color: var(--k-metin-2); }
details.k-ac[open] summary { margin-bottom: 12px; }
.k-ozet { list-style: none; margin: 0 0 6px; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.k-ozet li { display: flex; gap: 12px; align-items: center; padding: 12px 14px; border-radius: 14px; background: #f8fafc; }
.k-ozet i { font-size: 1.4rem; color: var(--k-yesil); }
.k-ozet li.eksik i { color: #d97706; }
.k-ozet span { display: flex; flex-direction: column; }
.k-ozet small { color: var(--k-soluk); }
.k-bitti-ikon { width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 12px; background: #dcfce7; color: var(--k-yesil); font-size: 2.6rem; }

@media (max-width: 600px) {
    .k-kart { padding: 30px 20px 24px; border-radius: 22px; }
    .k-marka { font-size: 2.4rem; }
    .k-adimlar li span { display: none; }
    .k-iki { grid-template-columns: 1fr; }
    .k-alt-cubuk { flex-direction: column-reverse; }
    .k-alt-cubuk .k-btn { width: 100%; }
    .k-btn-buyuk { width: 100%; min-width: 0; }
}