@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --brand: #0f9b6e;
    --brand-dark: #0b7a56;
    --brand-light: #e6f7f1;
    --ink: #1c2b28;
    --sidebar-bg: #0d2b24;
    --sidebar-text: #cfe9df;
    --warn: #c77b16;
    --danger: #c0392b;
}

body {
    font-family: 'Inter', sans-serif;
    background: #f4f8f6;
    color: var(--ink);
}

.btn-brand {
    background: var(--brand);
    border-color: var(--brand);
    color: #fff;
    font-weight: 600;
}
.btn-brand:hover {
    background: var(--brand-dark);
    border-color: var(--brand-dark);
    color: #fff;
}

/* Auth pages */
.auth-body {
    background: linear-gradient(160deg, var(--sidebar-bg), var(--brand-dark));
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.auth-wrap { width: 100%; max-width: 400px; padding: 20px; }
.auth-card {
    background: #fff;
    border-radius: 14px;
    padding: 32px 28px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

/* App shell */
.app-shell { display: flex; min-height: 100vh; }
.sidebar {
    width: 230px;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    flex-shrink: 0;
    padding: 20px 0;
}
.sidebar .brand {
    font-weight: 700;
    font-size: 1.2rem;
    color: #fff;
    padding: 0 20px 20px;
    display: block;
}
.sidebar a {
    display: block;
    padding: 11px 20px;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 0.93rem;
    border-left: 3px solid transparent;
}
.sidebar a:hover, .sidebar a.active {
    background: rgba(255,255,255,0.08);
    border-left-color: var(--brand);
    color: #fff;
}
.main-content { flex-grow: 1; padding: 24px 28px; }

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.stat-card {
    background: #fff;
    border-radius: 12px;
    padding: 18px 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border-top: 3px solid var(--brand);
}

.card-panel {
    background: #fff;
    border-radius: 12px;
    padding: 22px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.table-clean thead th {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: #6b7a76;
    border-bottom: 2px solid #e8efec;
}

.badge-low { background: var(--danger); color: #fff; }
.badge-ok { background: var(--brand-light); color: var(--brand-dark); }
.badge-warn { background: #fdf0e0; color: var(--warn); }

.badge-student { background: #e6f0fa; color: #205a9c; }
.badge-staff { background: #f2e6fa; color: #6a2c9c; }
.badge-hazard { background: #fbe9e7; color: #a83a2f; font-weight: 600; font-size: 0.7rem; }

/* ============ Responsive / Mobile ============ */

.menu-toggle {
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--ink);
    line-height: 1;
    padding: 4px 6px;
}

.sidebar-backdrop {
    display: none;
}

@media (max-width: 991.98px) {
    .app-shell { position: relative; overflow-x: hidden; }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        z-index: 1050;
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        overflow-y: auto;
    }
    .sidebar.open {
        transform: translateX(0);
        box-shadow: 4px 0 20px rgba(0,0,0,0.25);
    }

    .sidebar-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.35);
        z-index: 1040;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.25s ease;
    }
    .sidebar-backdrop.show {
        opacity: 1;
        pointer-events: auto;
    }

    .main-content {
        width: 100%;
        padding: 16px;
    }
}

@media (min-width: 992px) {
    .menu-toggle { display: none; }
}

@media (max-width: 575.98px) {
    .topbar {
        flex-wrap: wrap;
        gap: 8px;
    }
    .page-title { font-size: 1.1rem; }
    .auth-card { padding: 24px 20px; }
    .card-panel { padding: 16px; }
    .stat-card { padding: 14px 16px; }
    .table-clean { font-size: 0.85rem; }
}

/* Prevent Bootstrap grid gutters from causing horizontal scroll on narrow phones */
.row { margin-left: -8px; margin-right: -8px; }
.row > * { padding-left: 8px; padding-right: 8px; }