:root {
    --bg: #f3f5f9;
    --card: #ffffff;
    --text: #202733;
    --muted: #5a6475;
    --primary: #2e5bff;
    --primary-dark: #2348ca;
    --success: #1f9254;
    --danger: #cf2e2e;
    --shadow: 0 8px 20px rgba(24, 39, 75, 0.08);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
}

a { color: inherit; text-decoration: none; }

.app {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: #111827;
    color: #f8fafc;
    padding: 24px 18px;
}

.brand { font-size: 1.1rem; font-weight: 700; margin-bottom: 24px; line-height: 1.4; }
.nav-link {
    display: block;
    padding: 11px 12px;
    border-radius: 8px;
    margin-bottom: 8px;
    color: #d2d8e3;
}
.nav-link:hover, .nav-link.active { background: #1f2937; color: #fff; }

.main { padding: 28px; }
.card {
    background: var(--card);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 22px;
    margin-bottom: 18px;
}

h1, h2, h3 { margin-top: 0; }
.muted { color: var(--muted); }

.form-grid { display: grid; gap: 14px; }
label { font-weight: 600; font-size: 0.92rem; }
input, select {
    width: 100%;
    margin-top: 6px;
    border: 1px solid #d3dbe8;
    border-radius: 8px;
    padding: 11px;
    font-size: 1rem;
    background: #fff;
}
input:focus, select:focus { outline: 2px solid #c8d5ff; border-color: var(--primary); }

.btn {
    border: 0;
    border-radius: 9px;
    background: var(--primary);
    color: #fff;
    padding: 11px 16px;
    font-weight: 600;
    cursor: pointer;
}
.btn:hover { background: var(--primary-dark); }
.btn.secondary { background: #334155; }

.notice { padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; }
.notice.error { background: #ffeaea; color: var(--danger); }
.notice.success { background: #eafbf1; color: var(--success); }

.auth-wrap {
    max-width: 500px;
    margin: 48px auto;
}

.badge { display: inline-block; padding: 5px 10px; border-radius: 999px; font-size: 0.8rem; }
.badge.success { background: #ddf8e8; color: var(--success); }
.badge.warn { background: #fff4dd; color: #915f00; }

.legal-box {
    border: 1px solid #d3dbe8;
    border-radius: 10px;
    max-height: 380px;
    overflow-y: auto;
    padding: 12px;
}

details {
    border-bottom: 1px solid #e8edf5;
    padding: 8px 0;
}
summary { font-weight: 700; cursor: pointer; }

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 12px;
}

@media (max-width: 900px) {
    .app { grid-template-columns: 1fr; }
    .sidebar { padding-bottom: 6px; }
}