:root {
    --c-body:            #f4f5f9;
    --c-card:            #ffffff;
    --c-border:          #e2e4ed;
    --c-text:            #1e2130;
    --c-muted:           #64748b;
    --c-nav-bg:          #ffffff;
    --c-nav-border:      #e2e4ed;
    --c-primary:         #374151;
    --c-primary-lt:      #f3f4f6;
    --c-success:         #10b981;
    --c-success-lt:      #d1fae5;
    --c-warning:         #f59e0b;
    --c-warning-lt:      #fef3c7;
    --c-danger:          #ef4444;
    --c-danger-lt:       #fee2e2;
    --c-info:            #3b82f6;
    --c-info-lt:         #dbeafe;
    --c-hadir:           #10b981;
    --c-hadir-lt:        #d1fae5;
    --c-alfa:            #ef4444;
    --c-alfa-lt:         #fee2e2;
    --c-izin:            #3b82f6;
    --c-izin-lt:         #dbeafe;
    --c-izin-sekolah:    #8b5cf6;
    --c-izin-sekolah-lt: #ede9fe;
    --c-sakit:           #f59e0b;
    --c-sakit-lt:        #fef3c7;
    --c-cabut:           #dc2626;
    --c-cabut-lt:        #fee2e2;
    --topbar-h:          56px;
    --bottomnav-h:       64px;
}
html.dark {
    --c-body:            #111113;
    --c-card:            #1c1c1f;
    --c-border:          #2c2c30;
    --c-text:            #eeeef0;
    --c-muted:           #88888e;
    --c-nav-bg:          #0c0c0e;
    --c-nav-border:      #222226;
    --c-primary:         #d1d5db;
    --c-primary-lt:      rgba(209,213,219,.12);
    --c-success-lt:      rgba(16,185,129,.14);
    --c-warning-lt:      rgba(245,158,11,.14);
    --c-danger-lt:       rgba(239,68,68,.14);
    --c-info-lt:         rgba(59,130,246,.14);
    --c-hadir-lt:        rgba(16,185,129,.15);
    --c-alfa-lt:         rgba(239,68,68,.15);
    --c-izin-lt:         rgba(59,130,246,.15);
    --c-izin-sekolah-lt: rgba(139,92,246,.15);
    --c-sakit-lt:        rgba(245,158,11,.15);
    --c-cabut-lt:        rgba(220,38,38,.15);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; }

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: 'Alatsi', sans-serif;
    background: var(--c-body);
    color: var(--c-text);
    transition: background .2s, color .2s;
    display: flex;
    flex-direction: column;
}

/* ── TOPBAR ─────────────────────────────────── */
.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--topbar-h);
    padding: 0 16px;
    padding-top: env(safe-area-inset-top);
    background: var(--c-nav-bg);
    border-bottom: 1px solid var(--c-nav-border);
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 900;
    transition: background .2s;
}

/* ── MAIN SCROLL ─────────────────────────────── */
#main-scroll {
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    right: 0;
    bottom: var(--bottomnav-h);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 16px;
    background: var(--c-body);
}
#main-scroll::-webkit-scrollbar { width: 4px; }
#main-scroll::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 4px; }

/* ── BOTTOM NAVIGATION ────────────────────────── */
.bottom-nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    height: calc(var(--bottomnav-h) + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    background: var(--c-nav-bg);
    border-top: 1px solid var(--c-nav-border);
    display: flex;
    align-items: stretch;
    z-index: 9990;
    transition: background .2s;
    pointer-events: auto;
}

.nav-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    cursor: pointer;
    color: var(--c-muted);
    font-size: .65rem;
    font-weight: 700;
    letter-spacing: .01em;
    font-family: 'Alatsi', sans-serif;
    border: none;
    background: transparent;
    position: relative;
    padding: 8px 0;
    transition: color .15s;
    -webkit-tap-highlight-color: transparent;
    outline: none;
    user-select: none;
    pointer-events: auto;
}
.nav-tab.aktif { color: var(--c-primary); }
.nav-tab:active { opacity: .7; }

.nav-tab-indicator {
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 32px; height: 3px;
    background: var(--c-primary);
    border-radius: 0 0 4px 4px;
    transition: transform .2s cubic-bezier(.34,1.56,.64,1);
}
.nav-tab-indicator.show { transform: translateX(-50%) scaleX(1); }

/* ── CARDS ────────────────────────────────────── */
.card {
    background: var(--c-card);
    border: 1px solid var(--c-border);
    transition: background .2s, border-color .2s;
}

.hero-card {
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    border-radius: 16px;
    padding: 18px 20px;
    border: none;
    box-shadow: 0 4px 20px rgba(0,0,0,.18);
}

.stat-icon {
    width: 38px; height: 38px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}

/* ── BUTTONS ──────────────────────────────────── */
.theme-btn {
    display: flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; border-radius: 8px; cursor: pointer;
    color: var(--c-muted); transition: background .15s, color .15s;
    border: none; background: transparent;
    -webkit-tap-highlight-color: transparent;
}
.theme-btn:hover { background: var(--c-primary-lt); color: var(--c-primary); }

.btn-primary {
    background: var(--c-primary); color: #fff;
    border: none; padding: 9px 16px;
    border-radius: 10px; font-size: .82rem; font-weight: 700;
    font-family: 'Alatsi', sans-serif;
    cursor: pointer; transition: filter .15s, opacity .15s;
    display: inline-flex; align-items: center; gap: 6px;
    -webkit-tap-highlight-color: transparent;
}
.btn-primary:hover:not(:disabled) { filter: brightness(1.1); }
.btn-primary:disabled { opacity: .55; cursor: not-allowed; }
html.dark .btn-primary { color: #111113; }

.btn-secondary {
    background: var(--c-body); color: var(--c-text);
    border: 1px solid var(--c-border);
    padding: 9px 16px; border-radius: 10px;
    font-size: .82rem; font-weight: 700;
    font-family: 'Alatsi', sans-serif;
    cursor: pointer; transition: background .15s;
    display: inline-flex; align-items: center; gap: 6px;
    -webkit-tap-highlight-color: transparent;
}
.btn-secondary:hover { background: var(--c-primary-lt); }

.btn-success {
    background: var(--c-success); color: #fff;
    border: none; padding: 11px 16px;
    border-radius: 10px; font-size: .85rem; font-weight: 700;
    font-family: 'Alatsi', sans-serif;
    cursor: pointer; transition: filter .15s, opacity .15s;
    display: inline-flex; align-items: center; gap: 6px;
    -webkit-tap-highlight-color: transparent;
}
.btn-success:hover:not(:disabled) { filter: brightness(1.08); }
.btn-success:disabled { opacity: .55; cursor: not-allowed; }

/* ── FORM ─────────────────────────────────────── */
.field-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--c-border);
    border-radius: 10px;
    background: var(--c-body);
    color: var(--c-text);
    font-size: .85rem;
    font-family: 'Alatsi', sans-serif;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
    -webkit-appearance: none;
    appearance: none;
}
.field-input:focus {
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(55,65,81,.1);
}
html.dark .field-input:focus { box-shadow: 0 0 0 3px rgba(209,213,219,.1); }

.field-label {
    display: block; font-size: .78rem; font-weight: 700;
    margin-bottom: 5px; color: var(--c-text);
}

/* ── TABLE / LIST ─────────────────────────────── */
.tabel-row:last-child { border-bottom: none !important; }
.tabel-row:active { background: var(--c-body); }

.siswa-row {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    border-bottom: 1px solid var(--c-border);
}
.siswa-row:last-child { border-bottom: none; }

/* ── CHIPS ────────────────────────────────────── */
.chip-group { display: flex; gap: 3px; }

.chip {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 3px 6px; border-radius: 100px;
    font-size: .67rem; font-weight: 800;
    cursor: pointer; border: 1.5px solid;
    transition: all .12s; user-select: none;
    min-width: 26px; min-height: 22px;
    -webkit-tap-highlight-color: transparent;
    outline: none;
}
.chip:active { transform: scale(.9); }

/* ── BADGES ───────────────────────────────────── */
.badge {
    display: inline-flex; align-items: center;
    padding: 3px 10px; border-radius: 100px;
    font-size: .78rem; font-weight: 700;
    white-space: nowrap;
}

/* ── CLASS BUTTONS ────────────────────────────── */
.kelas-btn {
    padding: 8px 4px; border-radius: 8px;
    border: 1.5px solid var(--c-border);
    background: var(--c-card); color: var(--c-text);
    font-size: .75rem; font-weight: 700;
    cursor: pointer; transition: all .15s;
    font-family: 'Alatsi', sans-serif;
    text-align: center;
    -webkit-tap-highlight-color: transparent;
}
.kelas-btn:active { opacity: .7; }
.kelas-btn.aktif  { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
html.dark .kelas-btn.aktif { color: #111113; }

.angkatan-tab {
    flex: 1;
    padding: 7px 8px; border-radius: 8px;
    border: 1.5px solid var(--c-border);
    background: transparent; color: var(--c-muted);
    font-size: .8rem; font-weight: 700;
    cursor: pointer; transition: all .15s;
    font-family: 'Alatsi', sans-serif;
    text-align: center;
    -webkit-tap-highlight-color: transparent;
}
.angkatan-tab.aktif { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
html.dark .angkatan-tab.aktif { color: #111113; }

/* ── JAM DISPLAY ──────────────────────────────── */
.jam-display {
    font-family: 'Courier New', monospace;
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .04em;
    color: var(--c-text);
    background: var(--c-body);
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid var(--c-border);
}

/* ── NOTIF ────────────────────────────────────── */
.notif-success {
    background: var(--c-hadir-lt); color: var(--c-hadir);
    border: 1px solid var(--c-hadir);
    border-radius: 10px; padding: 10px 14px;
    font-size: .82rem; font-weight: 700;
}
.notif-error {
    background: var(--c-alfa-lt); color: var(--c-alfa);
    border: 1px solid var(--c-alfa);
    border-radius: 10px; padding: 10px 14px;
    font-size: .82rem; font-weight: 700;
}

/* ── PRINT ────────────────────────────────────── */
.print-header { display: none; }

@media print {
    .topbar, .bottom-nav, .kontrol-rekap, .aksi-cetak, .no-print { display: none !important; }
    body { background: #fff !important; overflow: visible; height: auto; }
    #main-scroll { position: static !important; overflow: visible !important; padding: 16px; }
    .card { border: 1px solid #ccc !important; box-shadow: none !important; }
    .hero-card { display: none !important; }
    .print-header { display: block !important; }
    .badge { border: 1px solid currentColor; }
}

/* ── SKELETON ─────────────────────────────────── */
@keyframes shimmer {
    0%   { background-position: -400px 0; }
    100% { background-position:  400px 0; }
}

.skeleton {
    border-radius: 6px;
    background: linear-gradient(
        90deg,
        var(--c-border) 25%,
        var(--c-body)   50%,
        var(--c-border) 75%
    );
    background-size: 800px 100%;
    animation: shimmer 1.4s infinite linear;
}

.skeleton-row {
    display: flex;
    align-items: center;
    padding: 12px;
    border-bottom: 1px solid var(--c-border);
    gap: 10px;
}
.skeleton-row:last-child { border-bottom: none; }

.skeleton-avatar { width: 32px; height: 32px; border-radius: 8px; flex-shrink: 0; }
.skeleton-line-sm { height: 10px; border-radius: 4px; }
.skeleton-line-md { height: 13px; border-radius: 4px; }
.skeleton-chips { display: flex; gap: 4px; }
.skeleton-chip { width: 26px; height: 22px; border-radius: 100px; }

.skeleton-stat {
    height: 72px;
    border-radius: 12px;
}

/* ── TOAST ────────────────────────────────────── */
.toast {
    position: fixed;
    bottom: calc(var(--bottomnav-h) + env(safe-area-inset-bottom) + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(0);
    background: #1f2937;
    color: #f9fafb;
    padding: 9px 18px;
    border-radius: 100px;
    font-size: .8rem;
    font-weight: 700;
    white-space: nowrap;
    z-index: 9999;
    box-shadow: 0 4px 16px rgba(0,0,0,.28);
    pointer-events: none;
    transition: opacity .25s, transform .25s;
}
.toast.sembunyi {
    opacity: 0;
    transform: translateX(-50%) translateY(8px);
}

[x-cloak] { display: none !important; }