/* ============================================================
   HEPI-D Admin Panel — stylesheet
   ============================================================ */

:root {
    --brand: #0d9488;
    --brand-dark: #0f766e;
    --brand-light: #ccfbf1;
    --bg: #f1f5f9;
    --surface: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --danger: #dc2626;
    --danger-bg: #fee2e2;
    --warning: #d97706;
    --warning-bg: #fef3c7;
    --success: #16a34a;
    --success-bg: #dcfce7;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04);
    --sidebar-w: 250px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.5;
}

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

/* ---------- Layout ---------- */
.layout { display: flex; min-height: 100vh; }

.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    margin-left: var(--sidebar-w);
}

.content { flex: 1; padding: 24px; max-width: 1200px; width: 100%; }

.page-footer {
    padding: 16px 24px;
    color: var(--text-muted);
    font-size: 13px;
    border-top: 1px solid var(--border);
}

/* ---------- Sidebar ---------- */
.sidebar {
    width: var(--sidebar-w);
    background: #0b3b38;
    color: #cbd5e1;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    z-index: 40;
}

.sidebar-brand {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    display: flex;
    flex-direction: column;
}
.brand-mark { font-size: 22px; font-weight: 700; color: #fff; letter-spacing: .5px; }
.brand-sub { font-size: 12px; color: #6ee7d7; }

/* Logo (sidebar & login) */
.brand-logo {
    display: block;
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 12px;
    background: #fff;
    margin-bottom: 10px;
}
.login-card .brand-logo {
    width: 120px;
    height: 120px;
    margin: 0 auto 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .12);
}

.sidebar-nav { padding: 12px 0; }

.nav-section {
    padding: 14px 20px 6px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: #6b8b88;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: #cbd5e1;
    font-size: 14px;
    border-left: 3px solid transparent;
}
.nav-link:hover { background: rgba(255, 255, 255, .06); text-decoration: none; color: #fff; }
.nav-link.active {
    background: rgba(13, 148, 136, .25);
    color: #fff;
    border-left-color: var(--brand);
}
.nav-icon { width: 20px; text-align: center; }

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .4);
    z-index: 30;
}

/* ---------- Topbar ---------- */
.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 20;
}
.topbar-title { font-size: 18px; margin: 0; flex: 1; }
.topbar-user { display: flex; align-items: center; gap: 12px; }
.user-name { font-size: 14px; color: var(--text-muted); }

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 16px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: var(--brand);
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background .15s, opacity .15s;
}
.btn:hover { background: var(--brand-dark); text-decoration: none; }
.btn-sm { padding: 5px 11px; font-size: 13px; }
.btn-outline { background: transparent; border-color: var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #b91c1c; }
.btn-muted { background: #94a3b8; }
.btn-muted:hover { background: #64748b; }
.btn-block { display: flex; width: 100%; justify-content: center; }

/* ---------- Cards ---------- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}
.card-header {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}
.card-header h2 { font-size: 16px; margin: 0; }
.card-body { padding: 18px; }

/* ---------- Stat cards ---------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    border-left: 4px solid var(--brand);
}
.stat-card.warning { border-left-color: var(--warning); }
.stat-card.danger { border-left-color: var(--danger); }
.stat-label { font-size: 13px; color: var(--text-muted); }
.stat-value { font-size: 30px; font-weight: 700; line-height: 1; }
.stat-hint { font-size: 12px; color: var(--text-muted); }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
table.data {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
table.data th, table.data td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
table.data th {
    background: #f8fafc;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .03em;
}
table.data tbody tr:hover { background: #f8fafc; }
table.data td.wrap { white-space: normal; }
.text-center { text-align: center; }
.actions { display: flex; gap: 6px; }
.empty-state {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted);
}

/* ---------- Badges ---------- */
.badge {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.4;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-muted { background: #e2e8f0; color: #475569; }
.badge-info { background: var(--brand-light); color: var(--brand-dark); }

/* ---------- Forms ---------- */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 4px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--text); }
.form-group .req { color: var(--danger); }
.form-control {
    padding: 9px 11px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    color: var(--text);
    width: 100%;
}
.form-control:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, .15);
}
textarea.form-control { resize: vertical; min-height: 76px; }
.form-hint { font-size: 12px; color: var(--text-muted); }
.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: 16px; height: 16px; }
.checkbox-row label { font-weight: 400; margin: 0; }

/* ---------- Alerts ---------- */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
    border: 1px solid transparent;
}
.alert-success { background: var(--success-bg); color: #166534; border-color: #bbf7d0; }
.alert-danger { background: var(--danger-bg); color: #991b1b; border-color: #fecaca; }
.alert-warning { background: var(--warning-bg); color: #92400e; border-color: #fde68a; }
.alert ul { margin: 6px 0 0; padding-left: 18px; }

/* ---------- Filter bar ---------- */
.filter-bar {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}
.filter-bar .form-group { margin: 0; min-width: 160px; }

/* ---------- Breadcrumb / page head ---------- */
.page-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}
.page-head h2 { margin: 0; font-size: 20px; }
.muted { color: var(--text-muted); }
.mt-0 { margin-top: 0; }

/* ---------- Login ---------- */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: linear-gradient(135deg, #0b3b38, #0d9488);
}
.login-card {
    background: var(--surface);
    border-radius: 14px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, .2);
    padding: 32px;
    width: 100%;
    max-width: 380px;
}
.login-card .brand { text-align: center; margin-bottom: 22px; }
.login-card .brand .brand-mark { color: var(--brand-dark); font-size: 28px; }
.login-card .brand .brand-sub { color: var(--text-muted); display: block; }

/* ---------- Chart layout ---------- */
.chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
}
.chart-box { position: relative; height: 280px; }

/* ---------- Detail lists ---------- */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 4px 24px;
}
.detail-item { padding: 8px 0; border-bottom: 1px solid var(--border); }
.detail-item .k { font-size: 12px; color: var(--text-muted); display: block; }
.detail-item .v { font-size: 15px; }

/* ---------- Rich text editor (materi edukasi) ---------- */
.rte-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    align-items: center;
    padding: 8px;
    border: 1px solid var(--border);
    border-bottom: none;
    border-radius: 8px 8px 0 0;
    background: #f8fafc;
}
.rte-btn {
    min-width: 34px;
    height: 32px;
    padding: 0 8px;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text);
}
.rte-btn:hover { background: var(--bg); }
.rte-sep { width: 1px; height: 20px; background: var(--border); margin: 0 4px; }
.rte-editor {
    min-height: 220px;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 0 0 8px 8px;
    background: #fff;
    font-size: 15px;
    line-height: 1.6;
    overflow-wrap: break-word;
}
.rte-editor:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(13, 148, 136, .12); }
.rte-editor h3 { font-size: 17px; margin: 12px 0 6px; }
.rte-editor h4 { font-size: 15px; margin: 10px 0 4px; }
.rte-editor p { margin: 0 0 10px; }
.rte-editor ul, .rte-editor ol { margin: 0 0 10px; padding-left: 22px; }
.rte-editor a { color: var(--brand-dark); }

/* Render materi (preview di halaman detail admin, jika ada) */
.materi-body h3 { font-size: 18px; margin: 16px 0 8px; }
.materi-body h4 { font-size: 15px; margin: 12px 0 6px; }
.materi-body p { margin: 0 0 12px; }
.materi-body ul, .materi-body ol { margin: 0 0 12px; padding-left: 22px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .main { margin-left: 0; }
    .sidebar { transform: translateX(-100%); transition: transform .2s ease; }
    .sidebar.open { transform: translateX(0); }
    .sidebar-overlay.show { display: block; }
    .menu-toggle { display: inline-block; }
}