*{box-sizing:border-box}
:root{font-family:Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;color:#2d3436;background:#eef2f3}
body{margin:0;background:#eef2f3;min-height:100vh}
body.dark{background:#17191c;color:#eee}
.app-header{background:#303030;color:#fff;padding:24px 5%;display:flex;align-items:center;justify-content:space-between;box-shadow:0 4px 15px #0003}
.app-header h1{margin:0;font-size:clamp(20px,3vw,32px)}
.app-header p{margin:6px 0 0;opacity:.8}
.icon-btn{border:0;border-radius:50%;width:40px;height:40px;cursor:pointer;font-size:18px}
.container{max-width:1000px;margin:25px auto;padding:0 16px}
.card{background:#fff;border-radius:14px;padding:22px;margin-bottom:20px;box-shadow:0 7px 22px #00000010;border:1px solid #0000000b}
body.dark .card{background:#24272b;border-color:#ffffff12}
h2{font-size:20px;margin:0 0 18px;border-left:4px solid #444;padding-left:10px}
h3{margin-top:25px}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.grid.three{grid-template-columns:repeat(3,1fr)}
.asset-form{display:grid;grid-template-columns:2fr 1fr 1fr auto;gap:10px}
input,select{width:100%;padding:11px 12px;border:1px solid #d8dde0;border-radius:8px;background:#fff;color:#222}
body.dark input,body.dark select{background:#181b1e;color:#eee;border-color:#444}
label{font-size:14px;display:flex;flex-direction:column;gap:6px}
.btn{border:0;border-radius:8px;padding:11px 16px;font-weight:700;cursor:pointer}
.btn.primary{background:#444;color:#fff}.btn.secondary{background:#e5e7e9;color:#222}
.btn.dark{background:#5d5d5d;color:#fff}.btn.big{min-width:260px}
.btn:hover{filter:brightness(.94)}
.action-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.asset-list{margin-top:14px;display:grid;gap:8px}
.asset-item{display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;background:#f2f2f2;border-left:4px solid #444;padding:11px;border-radius:7px}
body.dark .asset-item{background:#30343a}
.asset-item button{background:#e85b63;color:#fff;border:0;border-radius:5px;padding:7px 10px;cursor:pointer}
.children-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.vasiyet-row{display:grid;grid-template-columns:2fr 1fr auto;gap:10px;margin-bottom:10px}
.results{overflow-x:auto}
.asset-result{margin-bottom:18px;border:1px solid #ddd;border-radius:10px;overflow:hidden}
body.dark .asset-result{border-color:#444}
.asset-title{background:#e9f1f5;padding:12px;font-weight:800}
table{width:100%;border-collapse:collapse}
th,td{padding:10px;border-bottom:1px solid #ddd;text-align:left}
th{background:#3f3f3f;color:#fff}
.total-row{background:#ffe11b;font-weight:800}
.alert{padding:12px;border-radius:8px;margin-bottom:12px;background:#fff3cd}
.alert.danger{background:#ffd9dc;color:#8d1d28}
.alert.ok{background:#dff5e7;color:#166534}
.muted{color:#687176}
.notice{font-size:12px;color:#777;margin-top:14px}
.empty{padding:14px;background:#f7f7f7;border-radius:8px;color:#777}
body.dark .empty{background:#30343a}
@media(max-width:760px){.grid,.grid.three,.asset-form,.children-grid{grid-template-columns:1fr}.vasiyet-row{grid-template-columns:1fr}.container{padding:0 10px}.card{padding:16px}.asset-item{grid-template-columns:1fr auto}.action-row{flex-direction:column;align-items:stretch}.btn{width:100%}}
@media print{.app-header{box-shadow:none}.card{box-shadow:none;border:1px solid #ddd}.btn,.notice{display:none!important}.container{max-width:none}.card{break-inside:avoid}}