:root {
    --bg: #f3f7f8;
    --panel: #ffffff;
    --ink: #102a33;
    --muted: #5b7380;
    --line: #d7e3e8;
    --brand: #0f766e;
    --brand-dark: #0b5a54;
    --accent: #0ea5a4;
    --danger: #b42318;
    --success: #067647;
    --shadow: 0 10px 30px rgba(16, 42, 51, 0.06);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Cairo", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(14, 165, 164, 0.12), transparent 30%),
        linear-gradient(180deg, #eef6f7 0%, var(--bg) 40%);
    color: var(--ink);
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

.app-shell {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: linear-gradient(180deg, #0b3b3a 0%, #0f4f4c 55%, #0b3b3a 100%);
    color: #e8f7f6;
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.brand {
    display: flex;
    gap: 12px;
    align-items: center;
}

.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    background: rgba(255,255,255,0.12);
    font-weight: 800;
}

.brand strong { display: block; font-size: 1.1rem; }
.brand small { color: rgba(232,247,246,0.7); }

.nav { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.nav a {
    padding: 10px 12px;
    border-radius: 10px;
    color: rgba(232,247,246,0.85);
}
.nav a:hover, .nav a.active {
    background: rgba(255,255,255,0.12);
    color: #fff;
}

.logout-form button {
    width: 100%;
    border: 1px solid rgba(255,255,255,0.2);
    background: transparent;
    color: #fff;
    border-radius: 10px;
    padding: 10px;
    cursor: pointer;
}

.content { padding: 28px; }
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 22px;
    gap: 16px;
}
.topbar h1 { margin: 0; font-size: 1.6rem; }
.topbar p { margin: 4px 0 0; color: var(--muted); }
.user-chip {
    background: var(--panel);
    border: 1px solid var(--line);
    padding: 8px 14px;
    border-radius: 999px;
    box-shadow: var(--shadow);
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 22px;
}
.stat-card, .card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: var(--shadow);
}
.stat-card { padding: 18px; }
.stat-card span { color: var(--muted); display: block; margin-bottom: 8px; }
.stat-card strong { font-size: 1.4rem; }
.card { padding: 20px; }

.toolbar {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--brand);
    color: #fff;
    border: none;
    border-radius: 10px;
    padding: 10px 16px;
    cursor: pointer;
}
.btn:hover { background: var(--brand-dark); }
.btn.secondary { background: #e7f2f1; color: var(--brand-dark); }
.btn.danger { background: var(--danger); }
.btn.sm { padding: 6px 10px; font-size: 0.9rem; }

table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    padding: 12px 10px;
    border-bottom: 1px solid var(--line);
    text-align: right;
}
th { color: var(--muted); font-weight: 600; font-size: 0.92rem; }

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
.form-grid .full { grid-column: 1 / -1; }
label { display: block; margin-bottom: 6px; color: var(--muted); font-weight: 600; }
input, select, textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 10px 12px;
    background: #fff;
}
textarea { min-height: 100px; resize: vertical; }

.alert {
    padding: 12px 14px;
    border-radius: 12px;
    margin-bottom: 16px;
}
.alert.success { background: #ecfdf3; color: var(--success); }
.alert.error { background: #fef3f2; color: var(--danger); }
.alert ul { margin: 0; padding-inline-start: 18px; }

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.85rem;
    background: #e7f2f1;
    color: var(--brand-dark);
}
.badge.danger { background: #fee4e2; color: var(--danger); }
.badge.success { background: #d1fadf; color: var(--success); }
.badge.warn { background: #fef0c7; color: #93370d; }

.auth-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}
.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--shadow);
}
.auth-card h1 { margin: 0 0 8px; }
.auth-card p { margin: 0 0 20px; color: var(--muted); }
.auth-card .field { margin-bottom: 14px; }
.auth-card .btn { width: 100%; margin-top: 8px; }

.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.muted { color: var(--muted); }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }

.location-box {
    background: #eef6f7;
    border: 1px solid var(--line);
    color: var(--muted);
    border-radius: 12px;
    padding: 12px 14px;
    margin-bottom: 14px;
}
.location-box.success {
    background: #ecfdf3;
    border-color: #abefc6;
    color: var(--success);
}
.location-box.error {
    background: #fef3f2;
    border-color: #fecdca;
    color: var(--danger);
}

@media (max-width: 980px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar { position: sticky; top: 0; z-index: 10; }
    .nav { flex-direction: row; flex-wrap: wrap; }
    .stats { grid-template-columns: 1fr 1fr; }
    .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .stats { grid-template-columns: 1fr; }
    .content { padding: 16px; }
}