/* Merin yonetim paneli - harici bagimlilik yok (CDN/font indirmez) */
:root {
    --bg: #f4f6fa;
    --panel: #ffffff;
    --kenar: #e3e8ef;
    --metin: #1f2937;
    --soluk: #6b7280;
    --ana: #2563eb;
    --ana-koyu: #1d4ed8;
    --ana-acik: #eff4ff;
    --yan: #0f172a;
    --yan-metin: #cbd5e1;
    --basari: #16a34a;
    --basari-acik: #ecfdf3;
    --uyari: #d97706;
    --uyari-acik: #fffbeb;
    --hata: #dc2626;
    --hata-acik: #fef2f2;
    --golge: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .10);
    --radius: 10px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--metin);
    font: 14px/1.5 "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--ana); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Iskelet ---------- */
.kabuk { display: flex; min-height: 100vh; }

.yan-menu {
    width: 240px;
    flex-shrink: 0;
    background: var(--yan);
    color: var(--yan-metin);
    display: flex;
    flex-direction: column;
}

.yan-menu .marka {
    padding: 20px 20px 16px;
    font-size: 17px;
    font-weight: 600;
    color: #fff;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.yan-menu .marka small { display: block; font-size: 12px; font-weight: 400; color: #94a3b8; }

.yan-menu .grup {
    padding: 18px 20px 6px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: #64748b;
}

.yan-menu a {
    display: block;
    padding: 9px 20px;
    color: var(--yan-metin);
    border-left: 3px solid transparent;
}

.yan-menu a:hover { background: rgba(255, 255, 255, .05); text-decoration: none; color: #fff; }
.yan-menu a.aktif { background: rgba(37, 99, 235, .18); border-left-color: var(--ana); color: #fff; }
.yan-menu .alt { margin-top: auto; padding: 12px 0; border-top: 1px solid rgba(255, 255, 255, .08); }

.icerik { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.ust-bar {
    height: 56px;
    background: var(--panel);
    border-bottom: 1px solid var(--kenar);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.ust-bar .baslik { font-size: 16px; font-weight: 600; }
.ust-bar .kullanici { color: var(--soluk); display: flex; align-items: center; gap: 14px; }

.sayfa { padding: 24px; max-width: 1280px; width: 100%; }

.menu-ac { display: none; background: none; border: 0; font-size: 22px; cursor: pointer; color: var(--metin); }

@media (max-width: 900px) {
    .yan-menu { position: fixed; z-index: 20; inset: 0 auto 0 0; transform: translateX(-100%); transition: transform .2s; }
    .yan-menu.acik { transform: none; }
    .menu-ac { display: inline-block; }
    .sayfa { padding: 16px; }
}

/* ---------- Kart ---------- */
.kart {
    background: var(--panel);
    border: 1px solid var(--kenar);
    border-radius: var(--radius);
    box-shadow: var(--golge);
    margin-bottom: 20px;
}

.kart-baslik {
    padding: 14px 18px;
    border-bottom: 1px solid var(--kenar);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.kart-baslik h2 { margin: 0; font-size: 15px; font-weight: 600; }
.kart-baslik .aciklama { color: var(--soluk); font-size: 13px; }
.kart-govde { padding: 18px; }
.kart-alt { padding: 12px 18px; border-top: 1px solid var(--kenar); display: flex; gap: 8px; justify-content: flex-end; background: #fafbfc; border-radius: 0 0 var(--radius) var(--radius); }

/* ---------- Form ---------- */
.form-izgara { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 20px; }
.form-izgara .tam { grid-column: 1 / -1; }
@media (max-width: 700px) { .form-izgara { grid-template-columns: 1fr; } }

.alan label { display: block; font-weight: 500; margin-bottom: 5px; font-size: 13px; }
.alan .ipucu { color: var(--soluk); font-size: 12px; margin-top: 4px; }

.alan input[type=text],
.alan input[type=password],
.alan input[type=number],
.alan select,
.alan textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #cfd6e0;
    border-radius: 8px;
    font: inherit;
    background: #fff;
    color: var(--metin);
}

.alan input:focus, .alan select:focus, .alan textarea:focus {
    outline: none;
    border-color: var(--ana);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}

.alan input[readonly] { background: #f3f4f6; }

.onay-grup { display: flex; flex-wrap: wrap; gap: 18px; padding-top: 4px; }
.onay-grup label { display: inline-flex; align-items: center; gap: 6px; font-weight: 400; margin: 0; }

/* ---------- Dugmeler ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid transparent;
    font: inherit;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none !important;
    line-height: 1.3;
}

.btn-ana { background: var(--ana); color: #fff; }
.btn-ana:hover { background: var(--ana-koyu); }
.btn-ikincil { background: #fff; color: var(--metin); border-color: #cfd6e0; }
.btn-ikincil:hover { background: #f3f4f6; }
.btn-tehlike { background: #fff; color: var(--hata); border-color: #f3c3c3; }
.btn-tehlike:hover { background: var(--hata-acik); }
.btn-kucuk { padding: 4px 10px; font-size: 13px; }

/* ---------- Tablo ---------- */
.tablo-sar { overflow-x: auto; }
table.tablo { width: 100%; border-collapse: collapse; }
table.tablo th, table.tablo td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--kenar); white-space: nowrap; }
table.tablo th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--soluk); font-weight: 600; background: #fafbfc; }
table.tablo tr:last-child td { border-bottom: 0; }
table.tablo tr:hover td { background: #fafcff; }
table.tablo td.sayi, table.tablo th.sayi { text-align: right; }
table.tablo td.islem { text-align: right; }
.bos { padding: 28px; text-align: center; color: var(--soluk); }

/* ---------- Rozet ---------- */
.rozet { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 500; background: #eef2f7; color: #475569; }
.rozet.yesil { background: var(--basari-acik); color: var(--basari); }
.rozet.sari { background: var(--uyari-acik); color: var(--uyari); }
.rozet.kirmizi { background: var(--hata-acik); color: var(--hata); }
.rozet.mavi { background: var(--ana-acik); color: var(--ana); }

/* ---------- Bildirim ---------- */
.bildirim { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; border: 1px solid; }
.bildirim.basari { background: var(--basari-acik); border-color: #b7ebc6; color: #166534; }
.bildirim.hata { background: var(--hata-acik); border-color: #f5c2c2; color: #991b1b; }
.bildirim.uyari { background: var(--uyari-acik); border-color: #f7dfa3; color: #92400e; }
.bildirim.bilgi { background: var(--ana-acik); border-color: #c9d8fb; color: #1e40af; }

.ust-satir { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.ust-satir h1 { margin: 0; font-size: 20px; font-weight: 600; }
.ust-satir .alt-baslik { color: var(--soluk); margin-top: 2px; }

/* ---------- Arama / alt bolum / onay izgarasi ---------- */
.arama { display: flex; gap: 8px; padding: 14px 18px; border-bottom: 1px solid var(--kenar); }
.arama input[type=text] { flex: 1; max-width: 360px; padding: 8px 10px; border: 1px solid #cfd6e0; border-radius: 8px; font: inherit; }
.arama input[type=text]:focus { outline: none; border-color: var(--ana); box-shadow: 0 0 0 3px rgba(37, 99, 235, .15); }

.bolum-baslik { grid-column: 1 / -1; margin: 10px 0 0; padding-top: 14px; border-top: 1px dashed var(--kenar); font-size: 13px; font-weight: 600; color: var(--soluk); text-transform: uppercase; letter-spacing: .04em; }
.bolum-baslik:first-child { margin-top: 0; padding-top: 0; border-top: 0; }

.onay-izgara { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px 18px; }
.onay-izgara label { display: inline-flex; align-items: center; gap: 8px; font-weight: 400; margin: 0; cursor: pointer; }

.alan textarea.kod { font-family: Consolas, "Cascadia Mono", monospace; font-size: 12.5px; min-height: 90px; }
.alan input[type=time] { width: 100%; padding: 7px 10px; border: 1px solid #cfd6e0; border-radius: 8px; font: inherit; }

.saat-izgara { display: grid; grid-template-columns: 120px 1fr 1fr; gap: 8px 12px; align-items: center; max-width: 480px; }
.saat-izgara input { width: 100%; padding: 7px 10px; border: 1px solid #cfd6e0; border-radius: 8px; font: inherit; }

.ozet { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.ozet .kutu { border: 1px solid var(--kenar); border-radius: 8px; padding: 12px 14px; background: #fafbfc; }
.ozet .kutu .etiket { color: var(--soluk); font-size: 12px; }
.ozet .kutu .deger { font-size: 18px; font-weight: 600; margin-top: 2px; word-break: break-all; }

/* ---------- Giris ---------- */
.giris-zemin { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%); }
.giris-kart { width: 100%; max-width: 380px; background: #fff; border-radius: 14px; box-shadow: 0 20px 50px rgba(0, 0, 0, .25); padding: 32px; }
.giris-kart h1 { margin: 0 0 4px; font-size: 22px; }
.giris-kart .alt { color: var(--soluk); margin-bottom: 24px; }
.giris-kart .alan { margin-bottom: 14px; }
.giris-kart .btn { width: 100%; justify-content: center; padding: 10px; }