:root {
    --bg: #f1f5f9;
    --surface: #ffffff;
    --surface-alt: #f8fafc;
    --border: #e2e8f0;
    --border-strong: #cbd5e1;
    --text: #0f172a;
    --text-2: #64748b;
    --text-3: #94a3b8;
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #eef2ff;
    --success: #15803d;
    --success-bg: #dcfce7;
    --danger: #b91c1c;
    --danger-bg: #fee2e2;
    --warning: #b45309;
    --warning-bg: #fef3c7;
    --info: #0369a1;
    --info-bg: #e0f2fe;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 8px 24px rgba(15, 23, 42, .05);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Inter, system-ui, -apple-system, sans-serif;
    font-size: 14px;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

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

/* ---------------- düzen ---------------- */
.shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 248px;
    flex: 0 0 248px;
    background: linear-gradient(160deg, #1e1b4b, #312e81);
    color: #c7d2fe;
    display: flex;
    flex-direction: column;
    padding: 24px 0;
}

.brand { display: flex; align-items: center; gap: 12px; padding: 0 22px 22px; border-bottom: 1px solid #3f3b7a; }
.brand-mark {
    width: 40px; height: 40px; border-radius: 10px; background: var(--primary);
    display: grid; place-items: center; font-weight: 700; color: #fff; font-size: 17px;
}
.brand h1 { margin: 0; font-size: 17px; color: #fff; letter-spacing: .5px; }
.brand p { margin: 2px 0 0; font-size: 11px; opacity: .8; }

.nav { padding: 16px 12px; flex: 1; }
.nav a {
    display: flex; flex-direction: column; gap: 2px;
    padding: 11px 14px; border-radius: 8px; margin-bottom: 4px;
    color: #fff; text-decoration: none; font-weight: 600; font-size: 14px;
}
.nav a span { font-weight: 400; font-size: 11px; color: #c7d2fe; opacity: .8; }
.nav a:hover { background: #3730a3; text-decoration: none; }
.nav a.active { background: var(--primary); }

.sidebar-footer { padding: 0 18px; font-size: 11px; opacity: .65; }
.sidebar-footer form { margin-bottom: 12px; }
.sidebar-footer button {
    width: 100%; background: #2a2560; color: #fff; border: 1px solid #3f3b7a;
    padding: 9px; border-radius: 8px; cursor: pointer; font-size: 12px; font-weight: 600;
}
.sidebar-footer button:hover { background: #3730a3; }

.main { flex: 1; padding: 26px 30px 40px; min-width: 0; }

.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.page-head h2 { margin: 0; font-size: 22px; }
.page-head p { margin: 4px 0 0; color: var(--text-2); }
.page-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------------- kartlar ---------------- */
.card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 18px;
}
.card-head { padding: 16px 20px; border-bottom: 1px solid var(--border); }
.card-head h3 { margin: 0; font-size: 16px; }
.card-head p { margin: 3px 0 0; font-size: 12px; color: var(--text-2); }
.card-body { padding: 20px; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 16px 18px; box-shadow: var(--shadow);
}
.stat-label { font-size: 11px; font-weight: 700; color: var(--text-2); letter-spacing: .4px; text-transform: uppercase; }
.stat-value { font-size: 30px; font-weight: 700; margin-top: 8px; }
.stat-value.ok { color: var(--success); }
.stat-value.warn { color: var(--warning); }
.stat-value.bad { color: var(--danger); }
.stat-value.info { color: var(--primary); }

/* ---------------- tablo ---------------- */
table { width: 100%; border-collapse: collapse; }
thead th {
    text-align: left; font-size: 11px; font-weight: 700; letter-spacing: .4px;
    text-transform: uppercase; color: var(--text-2);
    background: var(--surface-alt); padding: 12px 16px; border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
tbody td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--primary-light); }
.mono { font-family: "Cascadia Mono", Consolas, monospace; font-size: 13px; }
.muted { color: var(--text-2); }
.small { font-size: 12px; }

.empty { padding: 40px 20px; text-align: center; color: var(--text-2); }

/* ---------------- rozet ---------------- */
.badge {
    display: inline-block; padding: 3px 10px; border-radius: 999px;
    font-size: 11px; font-weight: 700; white-space: nowrap;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-neutral { background: var(--surface-alt); color: var(--text-2); border: 1px solid var(--border); }
.badge-info    { background: var(--info-bg);    color: var(--info); }

/* ---------------- form ---------------- */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 11px; font-weight: 700; color: var(--text-2); letter-spacing: .4px; text-transform: uppercase; margin-bottom: 6px; }
.field .hint { font-size: 12px; color: var(--text-2); margin-top: 6px; }

input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], select, textarea {
    width: 100%; padding: 9px 12px; font-size: 14px; font-family: inherit; color: var(--text);
    background: var(--surface); border: 1px solid var(--border-strong); border-radius: 8px; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, .12); }
textarea { min-height: 78px; resize: vertical; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 820px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

.btn {
    display: inline-flex; align-items: center; gap: 7px; justify-content: center;
    padding: 9px 16px; border-radius: 8px; border: 1px solid transparent;
    font-size: 13px; font-weight: 600; font-family: inherit; cursor: pointer; text-decoration: none;
}
.btn:hover { text-decoration: none; opacity: .9; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn-danger { background: var(--danger-bg); color: var(--danger); border-color: #fca5a5; }
.btn-success { background: var(--success); color: #fff; }
.btn-sm { padding: 6px 11px; font-size: 12px; }

.toolbar { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.toolbar .field { margin: 0; }
.toolbar input[type=text], .toolbar select { min-width: 190px; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 13px; }
.alert-success { background: var(--success-bg); color: var(--success); }
.alert-error { background: var(--danger-bg); color: var(--danger); }
.alert-info { background: var(--info-bg); color: var(--info); }

.pagination { display: flex; gap: 6px; padding: 14px 20px; align-items: center; }
.pagination a, .pagination span { padding: 6px 11px; border-radius: 7px; border: 1px solid var(--border); font-size: 13px; }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ---------------- giriş ---------------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(160deg, #1e1b4b, #312e81); padding: 20px; }
.login-card { width: 100%; max-width: 390px; background: #fff; border-radius: 14px; padding: 34px; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.login-card .brand { border: none; padding: 0 0 22px; justify-content: center; }
.login-card .brand h1 { color: var(--text); }
.login-card .brand p { color: var(--text-2); }

/* ---------------- kod kutusu ---------------- */
pre.code {
    background: #0f172a; color: #e2e8f0; padding: 16px; border-radius: 8px;
    overflow-x: auto; font-family: "Cascadia Mono", Consolas, monospace; font-size: 12px; line-height: 1.6;
}
.key-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; }
.key-chip {
    background: var(--surface-alt); border: 1px solid var(--border); border-radius: 8px;
    padding: 11px 13px; font-family: "Cascadia Mono", Consolas, monospace; font-size: 13px; font-weight: 600;
}
.inline-form { display: inline; }