:root {
    --zemin: #f3f4f6;
    --kart: #ffffff;
    --cizgi: #e5e7eb;
    --yazi: #111827;
    --soluk: #6b7280;
    --vurgu: #16a34a;
    --vurgu-koyu: #15803d;
    --uyari: #b45309;
    --hata: #b91c1c;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--zemin);
    color: var(--yazi);
    font: 15px/1.5 "Segoe UI", system-ui, -apple-system, sans-serif;
}

h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 0 0 12px; }

a { color: #1d4ed8; text-decoration: none; }
a:hover { text-decoration: underline; }

/* Üst çubuk */
.ust {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    background: var(--kart);
    border-bottom: 1px solid var(--cizgi);
    padding: 12px 20px;
}

.marka { font-weight: 600; font-size: 17px; color: var(--yazi); }
.ust nav { display: flex; gap: 16px; }
.ust nav a { color: var(--soluk); }
.cikis { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.kullanici { color: var(--soluk); }

main { max-width: 1100px; margin: 0 auto; padding: 24px 16px 48px; }

/* Kartlar */
.kartlar { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }

.kart {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: var(--kart);
    border: 1px solid var(--cizgi);
    border-radius: 10px;
    padding: 16px;
    color: var(--yazi);
}

.kart:hover { border-color: var(--vurgu); text-decoration: none; }
.kart-ad { font-weight: 600; }
.kart-bilgi, .bilgi { color: var(--soluk); font-size: 13px; }
.kart-eylem { color: var(--vurgu); font-size: 13px; margin-top: 6px; }

/* Paneller */
.panel {
    background: var(--kart);
    border: 1px solid var(--cizgi);
    border-radius: 10px;
    padding: 18px;
    margin-bottom: 18px;
}

.bas-duzen { display: grid; grid-template-columns: minmax(280px, 380px) 1fr; gap: 18px; align-items: start; }
@media (max-width: 820px) { .bas-duzen { grid-template-columns: 1fr; } }

/* Alanlar */
.alan, .kucuk { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.alan span, .kucuk span { font-weight: 600; font-size: 13px; }
.alan small { color: var(--soluk); font-size: 12px; }

input, select, button {
    font: inherit;
    border-radius: 6px;
    border: 1px solid #d1d5db;
    padding: 8px 10px;
    background: #fff;
    color: inherit;
}

input[readonly] { background: var(--zemin); color: var(--soluk); }
input[type="range"] { padding: 0; }
button { cursor: pointer; }
button:hover { border-color: var(--soluk); }

.birincil { background: var(--vurgu); border-color: var(--vurgu-koyu); color: #fff; font-weight: 600; }
.birincil:hover { background: var(--vurgu-koyu); }
.buyuk { padding: 12px 34px; font-size: 16px; }
.ikincil { background: #fff; border-color: #d1d5db; color: #374151; padding: 10px 18px; }
.ikincil:hover { border-color: var(--soluk); }

/* Önizleme */
.onizleme-alan {
    background: var(--zemin);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    justify-content: center;
}

.onizleme-alan img {
    background: #fff;
    border: 1px solid #9ca3af;
    max-width: 100%;
    image-rendering: pixelated;
    width: 480px;
}

.bas-satir { display: flex; gap: 18px; align-items: flex-end; flex-wrap: wrap; margin-top: 16px; }
.bas-satir .kucuk { margin-bottom: 0; min-width: 130px; }

/* Listeler */
.liste { width: 100%; border-collapse: collapse; font-size: 14px; }
.liste th { text-align: left; color: var(--soluk); font-weight: 600; border-bottom: 1px solid var(--cizgi); padding: 8px 10px; }
.liste td { border-bottom: 1px solid var(--cizgi); padding: 8px 10px; vertical-align: middle; }
.liste tr.pasif { color: var(--soluk); text-decoration: line-through; }
.eylemler { display: flex; gap: 8px; }
.eylemler form { display: inline; }

.basit-liste { list-style: none; padding: 0; margin: 0 0 14px; }
.basit-liste li { display: flex; align-items: center; justify-content: space-between; gap: 10px; border-bottom: 1px solid var(--cizgi); padding: 8px 0; }

.satir-form { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }

.durum { border-radius: 999px; padding: 2px 10px; font-size: 12px; font-weight: 600; }
.durum.bekliyor { background: #fef3c7; color: #92400e; }
.durum.yazicida { background: #dbeafe; color: #1e40af; }
.durum.basildi { background: #dcfce7; color: #166534; }
.durum.hatali { background: #fee2e2; color: var(--hata); }
.durum.iptal { background: #e5e7eb; color: #4b5563; }

/* Mesajlar */
.basarili, .hata, .uyari, .sir, .bos {
    border-radius: 8px;
    padding: 12px 14px;
    margin: 0 0 16px;
}

.basarili { background: #dcfce7; color: #166534; }
.hata { background: #fee2e2; color: var(--hata); }
.uyari { background: #fef3c7; color: var(--uyari); }
.sir { background: #eef2ff; color: #3730a3; font-family: Consolas, monospace; }
.bos { background: var(--kart); border: 1px dashed var(--cizgi); color: var(--soluk); }
.uyari:empty, .hata:empty, .basarili:empty, #kaydetSonucu:empty { display: none; }

/* Giriş sayfası */
.giris-sayfasi { display: flex; align-items: center; justify-content: center; min-height: 100vh; }

.giris-kutu {
    background: var(--kart);
    border: 1px solid var(--cizgi);
    border-radius: 12px;
    padding: 28px;
    width: min(360px, 92vw);
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.giris-kutu h1 { margin: 0 0 6px; }
.giris-kutu label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; font-weight: 600; }
.giris-kutu button { padding: 10px; }

/* Tasarım ekranı */
.tasarim-duzen { display: grid; grid-template-columns: minmax(300px, 420px) 1fr; gap: 18px; align-items: start; }
@media (max-width: 900px) { .tasarim-duzen { grid-template-columns: 1fr; } }

.arac-satir { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.ikili { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.basit-liste li.secili-satir { background: #eef2ff; border-radius: 6px; padding-left: 6px; }
.basit-liste li { cursor: pointer; }
.tehlike { background: #fee2e2; border-color: #fca5a5; color: #b91c1c; }

.dugme { display: inline-block; border: 1px solid #d1d5db; border-radius: 6px; padding: 8px 12px; background: #fff; color: #374151; }
.dugme:hover { border-color: var(--soluk); text-decoration: none; }

.onizleme-sarmal { position: relative; display: inline-block; line-height: 0; }
.onizleme-sarmal img { width: 480px; max-width: 100%; background: #fff; border: 1px solid #9ca3af; image-rendering: pixelated; }
.katman { position: absolute; inset: 0; }
.kutu { position: absolute; border: 1px dashed #60a5fa; background: rgba(96,165,250,.12); cursor: move; }
.kutu.secili { border: 2px solid #2563eb; background: rgba(37,99,235,.18); }

.indirme { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; background: var(--zemin); border-radius: 8px; padding: 12px 14px; margin: 12px 0; }
.indirme .bilgi { max-width: 620px; }

/* Klasörler */
.klasor-adi { margin: 22px 0 10px; font-size: 15px; color: var(--soluk); text-transform: uppercase; letter-spacing: .04em; }
.klasor-baslik { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.klasor-baslik h2 { margin: 0; flex: 1 1 auto; }
.kucuk-form { margin-top: 0; }
.kucuk-form input { width: 150px; }
.tasi-form { display: inline-flex; gap: 4px; }
.tasi-form select { padding: 6px 8px; max-width: 150px; }

/* Klasör kartları */
.kart-klasor { border-color: #d1d5db; background: #fffbeb; }
.kart-klasor:hover { border-color: #f59e0b; }
.klasor-simge { font-size: 26px; line-height: 1; }
.geri { margin: 0 0 8px; }
.geri a { color: var(--soluk); }
.klasor-baslik h1 { margin: 0; flex: 1 1 auto; }

/* Arama */
.arama { display: flex; gap: 8px; align-items: center; margin: 0 0 16px; }
.arama input[type="search"] { flex: 1 1 auto; min-width: 0; padding: 10px 12px; }
.eslesen { color: #1d4ed8; font-size: 13px; }