:root {
    --zemin: #f3f6f8;
    --kart: #ffffff;
    --metin: #202124;
    --yumusak: #5f6368;
    --ana-renk: #2596be;
    --kenar: #cfe2ea;
    --hata: #a62c2c;
    --basari: #1f7a3a;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", "Helvetica Neue", sans-serif;
    color: var(--metin);
    min-height: 100vh;
    background-color: var(--zemin);
    background:
        radial-gradient(circle at 5% 10%, #e8f1f5 0 16%, transparent 16%),
        radial-gradient(circle at 95% 90%, #eaf3f7 0 14%, transparent 14%),
        var(--zemin);
    background-repeat: no-repeat, no-repeat, no-repeat;
    background-attachment: fixed, fixed, fixed;
}

.sayfa-sarmal {
    max-width: 980px;
    margin: 0 auto;
    padding: 16px;
}

.ust-cubuk {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    padding: 10px 12px;
    border: 1px solid #c7dce7;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(4px);
    box-shadow: 0 8px 22px rgba(24, 56, 73, 0.06);
}

.ust-cubuk nav {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
}

.ust-cubuk nav a {
    text-decoration: none;
    color: var(--metin);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.ust-cubuk nav a:hover {
    background: #eef7fb;
    border-color: #c6e2ee;
    color: #13485e;
}

.ust-cubuk nav a:focus-visible {
    outline: none;
    border-color: var(--ana-renk);
    box-shadow: 0 0 0 3px rgba(37, 150, 190, 0.18);
}

.marka {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 0.2px;
    color: #1b3340;
    text-decoration: none;
    white-space: nowrap;
}

.marka span {
    font-size: 1.18rem;
    line-height: 1;
}

.marka-logo {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--kenar);
}

.kahraman,
.panel {
    background: var(--kart);
    border: 1px solid var(--kenar);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 10px 25px rgba(20, 20, 20, 0.05);
}

.kahraman-icerik {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 16px;
    align-items: center;
}

.kahraman-metin {
    text-align: left;
}

.kahraman-metin h1 {
    margin-top: 0;
}

.kahraman-metin .eylemler {
    display: flex;
    justify-content: flex-start;
}

.kahraman-gorsel {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.kahraman-gorsel-cerceve {
    border: 1px solid #b7d5e4;
    border-radius: 18px;
    background: linear-gradient(180deg, #ffffff 0%, #f4f9fc 100%);
    padding: 12px;
    box-shadow: 0 10px 24px rgba(25, 69, 92, 0.08);
}

.kahraman-logo {
    width: 220px;
    height: 220px;
    object-fit: contain;
    display: block;
    margin: 0;
}

.kartlar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-top: 14px;
}

.kartlar article {
    background: var(--kart);
    border: 1px solid var(--kenar);
    border-radius: 12px;
    padding: 14px;
}

.dugme {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 12px;
    background: var(--ana-renk);
    color: #fff;
    border: 0;
    border-radius: 10px;
    padding: 10px 14px;
    min-height: 42px;
    line-height: 1.2;
    font-size: 0.96rem;
    text-decoration: none;
    cursor: pointer;
    font-weight: 600;
}

.dugme.ikincil {
    background: #e9f4f8;
    color: var(--metin);
}

.form {
    display: grid;
    gap: 10px;
}

label {
    display: grid;
    gap: 6px;
}

input,
select {
    border: 1px solid var(--kenar);
    border-radius: 10px;
    padding: 10px;
    font-size: 1rem;
    background: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--ana-renk);
    box-shadow: 0 0 0 3px rgba(37, 150, 190, 0.18);
}

select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding-right: 38px;
    background-image:
        linear-gradient(45deg, transparent 50%, #5b6c75 50%),
        linear-gradient(135deg, #5b6c75 50%, transparent 50%);
    background-position:
        calc(100% - 18px) calc(50% - 2px),
        calc(100% - 12px) calc(50% - 2px);
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
}

/* Form durum standardı: disabled / error / success */
input:disabled,
select:disabled,
textarea:disabled {
    background: #eef3f6;
    color: #6f7f88;
    border-color: #d4e0e7;
    cursor: not-allowed;
    box-shadow: none;
    opacity: 1;
}

input.alan-hata,
select.alan-hata,
textarea.alan-hata,
input[aria-invalid="true"],
select[aria-invalid="true"],
textarea[aria-invalid="true"] {
    border-color: var(--hata);
    background: #fff8f8;
    box-shadow: 0 0 0 3px rgba(166, 44, 44, 0.14);
}

input.alan-basari,
select.alan-basari,
textarea.alan-basari,
input[data-durum="basari"],
select[data-durum="basari"],
textarea[data-durum="basari"] {
    border-color: var(--basari);
    background: #f4fbf6;
    box-shadow: 0 0 0 3px rgba(31, 122, 58, 0.14);
}

input.alan-hata:focus,
select.alan-hata:focus,
textarea.alan-hata:focus,
input[aria-invalid="true"]:focus,
select[aria-invalid="true"]:focus,
textarea[aria-invalid="true"]:focus {
    border-color: var(--hata);
    box-shadow: 0 0 0 3px rgba(166, 44, 44, 0.18);
}

input.alan-basari:focus,
select.alan-basari:focus,
textarea.alan-basari:focus,
input[data-durum="basari"]:focus,
select[data-durum="basari"]:focus,
textarea[data-durum="basari"]:focus {
    border-color: var(--basari);
    box-shadow: 0 0 0 3px rgba(31, 122, 58, 0.18);
}

label:has(input:disabled),
label:has(select:disabled),
label:has(textarea:disabled) {
    color: #7d8a92;
}

input[type="checkbox"],
input[type="radio"] {
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: var(--ana-renk);
    cursor: pointer;
    flex: 0 0 auto;
}

.secim {
    border: 1px solid var(--kenar);
    border-radius: 10px;
    padding: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.secim:hover {
    border-color: #93c4d8;
    background: #f8fcfe;
}

.secim:has(input[type="radio"]:checked),
.secim:has(input[type="checkbox"]:checked) {
    border-color: var(--ana-renk);
    box-shadow: 0 0 0 2px rgba(37, 150, 190, 0.15);
}

.secim:has(input[type="radio"]:disabled),
.secim:has(input[type="checkbox"]:disabled) {
    opacity: 0.72;
    cursor: not-allowed;
    background: #f4f7f9;
}

.secim input[type="radio"]:focus-visible,
.secim input[type="checkbox"]:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 150, 190, 0.2);
}

.tablo-sarmal {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 8px;
}

th,
td {
    border-bottom: 1px solid var(--kenar);
    text-align: left;
    padding: 9px 6px;
    font-size: 0.95rem;
}

.bildirim {
    background: #eaf6fb;
    border: 1px solid #cbe8f4;
    border-radius: 10px;
    padding: 10px;
    margin: 8px 0;
}

.bildirim.hata,
.hata {
    background: #fdeeee;
    border: 1px solid #f4c7c7;
    color: var(--hata);
    border-radius: 10px;
    padding: 10px;
}

.bildirim.basari {
    color: var(--basari);
}

.icgoru,
.etiket,
.aciklama {
    background: #f2f9fc;
    border-left: 4px solid var(--ana-renk);
    padding: 10px;
    border-radius: 6px;
}

.soru-dipnot {
    margin: 4px 0 12px;
    text-align: right;
    color: var(--yumusak);
    font-size: 0.88rem;
}

.analiz-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.analiz-grafik {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 10px;
    margin-top: 8px;
    margin-bottom: 14px;
}

.analiz-grafik-ogesi {
    border: 1px solid var(--kenar);
    border-radius: 12px;
    padding: 10px;
    background: #fff;
    display: grid;
    justify-items: center;
    gap: 6px;
}

.analiz-grafik-cubuk {
    width: 46px;
    height: 128px;
    border-radius: 999px;
    background: #e9f1f5;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
}

.analiz-grafik-cubuk span {
    width: 100%;
    background: linear-gradient(180deg, #7cc7e1 0%, #2596be 100%);
    border-radius: 999px;
}

.analiz-grafik-ders {
    margin: 0;
    font-weight: 600;
    text-align: center;
}

.analiz-grafik-oran {
    margin: 0;
    color: #2a5a6d;
    font-size: 0.9rem;
}

.analiz-kart {
    border: 1px solid var(--kenar);
    border-radius: 12px;
    padding: 12px;
    background: #fff;
}

.analiz-kart h3 {
    margin-top: 0;
    margin-bottom: 8px;
}

.analiz-kart p {
    margin: 6px 0;
}

.koc-grid {
    display: grid;
    gap: 14px;
    margin-top: 12px;
}

.koc-kart {
    border: 1px solid var(--kenar);
    border-radius: 14px;
    padding: 14px;
    background: #fff;
}

.koc-kart-ust {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.koc-kart-ust h3 {
    margin: 0;
}

.koc-oran {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 70px;
    min-height: 32px;
    border-radius: 999px;
    padding: 4px 10px;
    font-weight: 700;
    color: #114156;
    background: #e8f5fb;
    border: 1px solid #c6e4f0;
}

.koc-ozet {
    margin: 8px 0 10px;
}

.koc-durum {
    margin: 0 0 8px;
    padding: 8px 10px;
    border-radius: 8px;
    background: #f2f9fc;
    border-left: 3px solid var(--ana-renk);
}

.koc-liste-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 8px;
}

.koc-liste-grid h4 {
    margin: 0 0 6px;
    font-size: 0.95rem;
}

.koc-liste {
    margin: 0;
    padding-left: 18px;
}

.koc-liste li {
    margin-bottom: 8px;
}

.koc-kod {
    font-weight: 700;
    color: #194457;
}

.oran-cubuk {
    width: 100%;
    height: 8px;
    border-radius: 999px;
    background: #e6edf1;
    overflow: hidden;
    margin-top: 8px;
}

.oran-cubuk span {
    display: block;
    height: 100%;
    background: var(--ana-renk);
}

.nasil-calisir {
    margin-top: 22px;
    background: linear-gradient(180deg, #ffffff 0%, #f5fbfe 100%);
    border: 1px solid #b9ddec;
}

.alt-bilgi {
    margin-top: 16px;
    color: var(--yumusak);
    font-size: 0.9rem;
}

.satir-form {
    margin-top: 10px;
}

.satir-form-yatay {
    margin-top: 0;
}

.eylemler-karsilikli {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 12px;
}

.eylemler-karsilikli .dugme {
    margin-top: 0;
    min-width: 170px;
}

@media (max-width: 640px) {
    .sayfa-sarmal {
        padding: 10px;
    }

    .ust-cubuk {
        justify-content: center;
    }

    .ust-cubuk nav {
        justify-content: center;
        width: 100%;
    }

    .kahraman,
    .panel {
        padding: 16px;
    }

    .eylemler-karsilikli {
        flex-direction: column;
        align-items: stretch;
    }

    .eylemler-karsilikli .dugme {
        width: 100%;
        text-align: center;
    }

    .koc-liste-grid {
        grid-template-columns: 1fr;
    }

    .kahraman-icerik {
        grid-template-columns: 1fr;
    }

    .kahraman-metin,
    .kahraman-metin .eylemler,
    .kahraman-gorsel {
        text-align: center;
        justify-content: center;
    }

    .kahraman-gorsel-cerceve {
        width: fit-content;
    }

    .kahraman-logo {
        width: 160px;
        height: 160px;
    }

    .marka-logo {
        width: 56px;
        height: 56px;
    }
}