:root {
    --primary-50: #ecfdf5;
    --primary-100: #d1fae5;
    --primary-500: #10b981;
    --primary-600: #059669;
    --primary-700: #047857;
    --primary-800: #065f46;
    --background: #f8fafc;
    --surface: #ffffff;
    --surface-soft: #f1f5f9;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --info: #2563eb;
    --warning: #d97706;
    --danger: #e11d48;
    --success: #059669;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --shadow: 0 16px 40px rgba(15, 23, 42, .08);
}

* { box-sizing: border-box; }
html { min-height: 100%; }
body {
    margin: 0;
    min-height: 100vh;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.5;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
input, select, textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    background: #fff;
    color: var(--text);
}
textarea { min-height: 110px; resize: vertical; }
label { display: grid; gap: 7px; font-weight: 650; color: var(--text); }
label small, .muted { color: var(--text-muted); font-weight: 500; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(1.6rem, 3vw, 2.25rem); line-height: 1.1; margin-bottom: 8px; }
h2 { font-size: 1.1rem; }
code { background: var(--surface-soft); padding: 2px 6px; border-radius: 8px; }

.guest-body {
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        radial-gradient(circle at top left, var(--primary-100), transparent 34rem),
        var(--background);
}
.guest-shell { width: min(100%, 860px); }
.auth-card, .install-card, .card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}
.auth-card { max-width: 430px; margin: auto; padding: 28px; }
.install-card { padding: 28px; }
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.brand-center { justify-content: center; text-align: left; }
.brand-mark {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: 16px;
    color: #fff;
    background: var(--primary-600);
    font-weight: 900;
    font-size: 1.4rem;
}
.brand small { display: block; color: var(--text-muted); }

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    font-weight: 750;
}
.button:hover { border-color: var(--primary-500); }
.button-primary { background: var(--primary-600); border-color: var(--primary-600); color: #fff; }
.button-soft { background: var(--primary-50); border-color: var(--primary-100); color: var(--primary-800); }
.button-danger { background: #fff1f2; border-color: #fecdd3; color: var(--danger); }
.button-ghost { background: transparent; }
.button-block { width: 100%; }
.button-sm { min-height: 34px; padding: 7px 10px; font-size: .9rem; }
.icon-button {
    position: relative;
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    cursor: pointer;
}
.dot {
    position: absolute;
    top: -7px;
    right: -7px;
    min-width: 20px;
    padding: 2px 5px;
    border-radius: 999px;
    background: var(--danger);
    color: #fff;
    font-size: .72rem;
}

.alert { padding: 12px 14px; border-radius: var(--radius-md); margin-bottom: 14px; border: 1px solid var(--border); white-space: pre-line; }
.alert-success { background: var(--primary-50); color: var(--primary-800); border-color: var(--primary-100); }
.alert-danger { background: #fff1f2; color: #9f1239; border-color: #fecdd3; }
.field-error { color: var(--danger); }
.badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 5px 10px;
    background: var(--surface-soft);
    color: var(--text-muted);
    font-size: .82rem;
    font-weight: 700;
}
.badge-success { background: var(--primary-50); color: var(--primary-800); }
.badge-danger { background: #fff1f2; color: var(--danger); }

.app-shell { display: grid; grid-template-columns: 236px 1fr; min-height: 100vh; }
.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 14px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    overflow-y: auto;
}
.sidebar .brand { margin-bottom: 14px; }
.brand-logo-wrap {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    min-width: 40px;
    max-width: 40px;
    max-height: 40px;
    overflow: hidden;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--surface-soft);
}
.brand-logo {
    display: block;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}
.brand > span:last-child { min-width: 0; }
.brand strong,
.brand small {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.sidebar-nav { display: grid; gap: 2px; }
.sidebar-nav a {
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-weight: 700;
    font-size: .93rem;
}
.sidebar-nav a:hover { background: var(--primary-50); color: var(--primary-800); }
.main-panel { min-width: 0; }
.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 16px;
    background: rgba(248, 250, 252, .88);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.topbar-actions { display: flex; align-items: center; gap: 8px; }
.content { padding: 16px; padding-bottom: 76px; }
.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}
.eyebrow { color: var(--primary-700); font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 900; margin-bottom: 4px; }
.quick-actions, .row-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.stats-grid { display: grid; grid-template-columns: repeat(6, minmax(108px, 1fr)); gap: 10px; margin-bottom: 12px; }
.stat-card {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
}
.stat-card span { color: var(--text-muted); font-weight: 700; font-size: .86rem; }
.stat-card strong { display: block; font-size: 1.45rem; margin-top: 3px; color: var(--primary-700); }
.dashboard-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.card { padding: 14px; }
.list-row, .notification-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}
.list-row:last-child, .notification-row:last-child { border-bottom: 0; }
.list-row small { display: block; color: var(--text-muted); }
.empty { color: var(--text-muted); background: var(--surface-soft); padding: 12px; border-radius: var(--radius-md); }
.toolbar { display: flex; gap: 8px; margin-bottom: 10px; }
.table-card { padding: 0; overflow: hidden; }
.responsive-table { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { color: var(--text-muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.span-2 { grid-column: span 2; }
.form-card { display: grid; gap: 12px; }
.checkbox-row { display: flex; align-items: center; gap: 10px; align-self: end; }
.checkbox-row input { width: auto; }
.sticky-actions { position: sticky; bottom: 16px; display: flex; justify-content: flex-end; padding-top: 12px; }
.pagination, .tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.pagination a, .tabs a { padding: 9px 12px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border); color: var(--text-muted); font-weight: 700; }
.pagination a.active, .tabs a.active { background: var(--primary-600); color: #fff; border-color: var(--primary-600); }
.dropdown { position: relative; }
.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    width: 280px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow);
}
.dropdown-right { right: 0; }
.dropdown.open .dropdown-menu { display: grid; gap: 8px; }
.notification-mini { display: grid; gap: 2px; padding: 8px; border-radius: var(--radius-sm); background: var(--surface-soft); }
.notification-row.unread { background: var(--primary-50); margin-inline: -10px; padding-inline: 10px; border-radius: var(--radius-md); }
.detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.detail-item { padding: 14px; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface-soft); }
.detail-item small { display: block; color: var(--text-muted); font-weight: 800; margin-bottom: 4px; }
.detail-item strong { overflow-wrap: anywhere; }
.check-grid { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.stack { display: grid; gap: 18px; }
.password-field { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.password-field button { border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface-soft); padding: 0 12px; cursor: pointer; }
.pwa-login-button { margin: 16px 0; }
.install-hint { margin: 14px 0 0; color: var(--text-muted); font-size: .9rem; text-align: center; }
.settings-layout { display: grid; grid-template-columns: 220px 1fr; gap: 16px; align-items: start; }
.settings-logo { display: grid; gap: 12px; }
.logo-preview {
    display: grid;
    place-items: center;
    width: 132px;
    height: 132px;
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface-soft);
    color: var(--primary-700);
    font-size: 3rem;
    font-weight: 900;
}
.logo-preview img { max-width: 100%; max-height: 100%; object-fit: contain; padding: 10px; }
.attendance-filter {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) 180px auto;
    gap: 10px;
    align-items: end;
    margin-bottom: 12px;
}
.attendance-stats { grid-template-columns: repeat(6, minmax(96px, 1fr)); }
.attendance-card { padding: 0; overflow: hidden; }
.attendance-list { display: grid; }
.attendance-row {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) 2fr minmax(180px, .8fr);
    gap: 10px;
    align-items: center;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}
.attendance-row:last-child { border-bottom: 0; }
.student-identity small { display: block; color: var(--text-muted); }
.status-options { display: flex; flex-wrap: wrap; gap: 6px; }
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 9px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    font-size: .86rem;
    cursor: pointer;
}
.status-pill input { width: auto; }
.status-pill:has(input:checked) { border-color: var(--primary-600); background: var(--primary-50); color: var(--primary-800); }
.status-sakit:has(input:checked) { border-color: var(--warning); background: #fffbeb; color: #92400e; }
.status-izin:has(input:checked) { border-color: var(--info); background: #eff6ff; color: #1d4ed8; }
.status-alpa:has(input:checked) { border-color: var(--danger); background: #fff1f2; color: #9f1239; }
.status-terlambat:has(input:checked) { border-color: #7c3aed; background: #f5f3ff; color: #5b21b6; }
.attendance-note { padding: 9px 10px; }
.offline-indicator {
    display: none;
    position: fixed;
    z-index: 50;
    left: 16px;
    right: 16px;
    bottom: 74px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    background: #fffbeb;
    color: #92400e;
    box-shadow: var(--shadow);
    text-align: center;
}
.offline .offline-indicator { display: block; }
.bottom-nav {
    display: none;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 20;
    grid-template-columns: repeat(3, 1fr);
    background: var(--surface);
    border-top: 1px solid var(--border);
}
.bottom-nav a { padding: 12px 8px; text-align: center; color: var(--text-muted); font-weight: 800; }
.mobile-menu-fab {
    display: none;
    position: fixed;
    right: 16px;
    bottom: 18px;
    z-index: 35;
    width: 58px;
    height: 58px;
    border: 0;
    border-radius: 22px;
    background: var(--primary-600);
    color: #fff;
    box-shadow: 0 16px 36px rgba(5, 150, 105, .32);
    font-size: 1.5rem;
    font-weight: 900;
    cursor: pointer;
}

@media (max-width: 1024px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar {
        position: fixed;
        z-index: 30;
        transform: translateX(-100%);
        transition: transform .2s ease;
        width: 270px;
    }
    .sidebar.open { transform: translateX(0); }
    .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .dashboard-grid { grid-template-columns: 1fr; }
    .settings-layout { grid-template-columns: 1fr; }
    .attendance-filter { grid-template-columns: 1fr 1fr auto; }
    .attendance-row { grid-template-columns: 1fr; align-items: stretch; }
    .bottom-nav { display: none; }
    .mobile-menu-fab { display: grid; place-items: center; }
}

@media (max-width: 680px) {
    .guest-body { padding: 14px; }
    .auth-card, .install-card, .card { border-radius: var(--radius-lg); padding: 14px; }
    .topbar { padding: 12px 14px; }
    .content { padding: 12px; padding-bottom: 84px; }
    .page-header { display: grid; }
    .form-grid { grid-template-columns: 1fr; }
    .span-2 { grid-column: auto; }
    .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .attendance-filter { grid-template-columns: 1fr; }
    .attendance-card { padding: 0; }
    .detail-grid { grid-template-columns: 1fr; }
    .toolbar { display: grid; }
    table, thead, tbody, th, td, tr { display: block; }
    thead { display: none; }
    tr { border-bottom: 1px solid var(--border); padding: 12px; }
    td { border-bottom: 0; padding: 6px 0; }
    td::before { content: attr(data-label); display: block; color: var(--text-muted); font-size: .78rem; font-weight: 800; }
}