/* =========================================================
   HADIR GURU — Blue Crystal Glass UI
   Glassmorphism + Soft Neumorphism theme
   MOBILE-FIRST · 100% Responsive · Dioptimalkan untuk Android
   ========================================================= */

:root {
    --bg-deep-1: #0b1c3d;
    --bg-deep-2: #123166;
    --bg-deep-3: #1a4fa0;
    --glass-bg: rgba(255, 255, 255, 0.10);
    --glass-bg-strong: rgba(255, 255, 255, 0.16);
    --glass-border: rgba(255, 255, 255, 0.28);
    --glass-shadow: 0 8px 32px rgba(6, 20, 51, 0.35);
    --accent: #3fa9ff;
    --accent-2: #7dd3fc;
    --accent-deep: #1d6fe0;
    --text-light: #eaf3ff;
    --text-muted: #b7c9e8;
    --radius-lg: 1.375rem;
    --radius-md: 1rem;
    --radius-sm: 0.625rem;
    --tap-min: 48px; /* tinggi minimum area sentuh nyaman di HP */
    --gap-mobile: 0.75rem;
    --gap-desktop: 1.25rem;
}

/* ---------- Reset & Base (Mobile First) ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
    font-size: 100%; /* 1rem = 16px, basis satuan responsif */
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

html, body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden; /* jaring pengaman anti horizontal-scroll */
}

body {
    min-height: 100vh;
    min-height: 100dvh;
    font-family: 'Segoe UI', 'Poppins', Arial, sans-serif;
    font-size: 1rem;      /* 16px — nyaman dibaca di semua HP */
    line-height: 1.55;
    color: var(--text-light);
    background: radial-gradient(circle at 15% 20%, #1a4fa0 0%, transparent 45%),
                radial-gradient(circle at 85% 0%, #2f6fd6 0%, transparent 40%),
                radial-gradient(circle at 50% 100%, #0d2b63 0%, transparent 55%),
                linear-gradient(160deg, var(--bg-deep-1), var(--bg-deep-2) 55%, var(--bg-deep-1));
    background-attachment: fixed;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,0.25) 0, transparent 100%),
        radial-gradient(1.5px 1.5px at 70% 60%, rgba(255,255,255,0.18) 0, transparent 100%),
        radial-gradient(1px 1px at 40% 80%, rgba(255,255,255,0.2) 0, transparent 100%);
    pointer-events: none;
    z-index: 0;
}

/* Semua elemen media tidak boleh melebihi lebar layar */
img, svg, video, canvas, iframe {
    max-width: 100%;
    height: auto;
    display: block;
}

table { width: 100%; max-width: 100%; }

/* Wadah utama fleksibel, tanpa lebar tetap (mis. 1200px) */
.container-fluid { width: 100%; max-width: 100%; padding-left: 1rem; padding-right: 1rem; }

/* Baris layout utama (sidebar + main-content) tidak lagi memakai grid col-*,
   jadi netralkan margin negatif bawaan Bootstrap agar tidak ada offset/overflow. */
.container-fluid > .row {
    margin-left: 0;
    margin-right: 0;
    width: 100%;
}

/* ---------- Glass surfaces ---------- */
.glass-card, .card {
    width: 100%;
    max-width: 100%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    color: var(--text-light);
    margin-bottom: var(--gap-mobile);
}

.card-body { padding: 1rem; }

.card-header {
    background: rgba(255,255,255,0.08);
    border-bottom: 1px solid var(--glass-border);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
    font-weight: 600;
    letter-spacing: 0.3px;
    padding: 0.9rem 1rem;
    font-size: 1rem;
}

.glass-panel {
    width: 100%;
    max-width: 100%;
    background: var(--glass-bg-strong);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(22px) saturate(180%);
    -webkit-backdrop-filter: blur(22px) saturate(180%);
    padding: 1.25rem;
}

/* ---------- Login page ---------- */
.login-wrapper {
    min-height: 100vh;
    min-height: 100dvh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    padding: 1rem;
}

.login-box {
    width: 100%;
    max-width: 26rem; /* ~420px, satuan rem agar responsif */
    background: var(--glass-bg-strong);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255,255,255,0.3);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    padding: 1.75rem 1.25rem;
}

.login-logo {
    width: 4.75rem;
    height: 4.75rem;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--accent), var(--accent-deep));
    box-shadow: 0 6px 18px rgba(63, 169, 255, 0.5), inset 0 2px 4px rgba(255,255,255,0.4);
    font-size: 2rem;
}

/* ---------- Navbar / Sidebar (mobile: hamburger, desktop: fixed sidebar) ---------- */
.app-navbar {
    width: 100%;
    background: rgba(10, 25, 56, 0.55);
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    position: sticky;
    top: 0;
    z-index: 100;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.app-navbar .container-fluid {
    flex-wrap: nowrap;
}

.app-navbar .navbar-brand {
    font-size: 1.05rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    flex-shrink: 1;
}

.app-navbar .ms-auto {
    flex-shrink: 0;
}

/* Tombol hamburger — tampil default di mobile, min. area sentuh 44-48px */
.mobile-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--tap-min);
    height: var(--tap-min);
    padding: 0;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.sidebar {
    background: rgba(10, 25, 56, 0.55);
    border-right: 1px solid var(--glass-border);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    padding: 1.2rem 0.8rem;
}

/* Sidebar versi desktop disembunyikan di mobile secara default (mobile-first) */
.app-sidebar-desktop { display: none; }

/* Offcanvas (menu mobile) tetap lebar fleksibel, tidak melebihi layar */
.offcanvas.sidebar { max-width: 85vw; width: 18rem; }

.sidebar .nav-link {
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem; /* tinggi nyaman disentuh */
    min-height: var(--tap-min);
    margin-bottom: 0.35rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1rem;
}

.sidebar .nav-link:hover {
    background: rgba(255,255,255,0.1);
    color: var(--text-light);
}

.sidebar .nav-link.active {
    background: linear-gradient(135deg, var(--accent-deep), var(--accent));
    color: #fff;
    box-shadow: 0 4px 14px rgba(63,169,255,0.4);
}

.main-content {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 100%;
    padding: 1rem;
}

/* ---------- Buttons (neumorphic + glass) — target sentuh 44-48px ---------- */
.btn {
    width: auto;
    max-width: 100%;
    min-height: var(--tap-min);
    padding: 0.6rem 1.1rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 1rem;
    border: 1px solid transparent;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    white-space: normal;
}
.btn:active { transform: translateY(1px) scale(0.99); }

.btn-sm { min-height: 44px; padding: 0.4rem 0.85rem; font-size: 0.9rem; }

.btn-primary {
    background: linear-gradient(145deg, var(--accent), var(--accent-deep));
    border: none;
    box-shadow: 0 6px 16px rgba(63,169,255,0.4), inset 0 1px 0 rgba(255,255,255,0.3);
}
.btn-primary:hover {
    background: linear-gradient(145deg, var(--accent-2), var(--accent));
    box-shadow: 0 8px 20px rgba(63,169,255,0.55);
}

.btn-outline-light {
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    background: rgba(255,255,255,0.05);
}
.btn-outline-light:hover {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.btn-success { background: linear-gradient(145deg,#34d399,#059669); border: none; }
.btn-warning { background: linear-gradient(145deg,#fbbf24,#d97706); border: none; }
.btn-danger  { background: linear-gradient(145deg,#f87171,#dc2626); border: none; }
.btn-info    { background: linear-gradient(145deg,#38bdf8,#0284c7); border: none; color: #fff; }

/* Di layar sangat kecil, tombol aksi memenuhi lebar agar mudah disentuh */
@media (max-width: 480px) {
    .card-body .btn,
    form .btn {
        width: 100%;
    }
    .card-body .d-flex.gap-2 .btn,
    .card-body .d-flex.gap-2 { flex-wrap: wrap; }
}

/* ---------- Forms — full width & mudah disentuh di mobile ---------- */
.form-control, .form-select {
    width: 100%;
    max-width: 100%;
    min-height: var(--tap-min);
    font-size: 1rem; /* >=16px agar browser Android/iOS tidak auto-zoom saat fokus */
    background: rgba(255,255,255,0.08);
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.85rem;
}
.form-control:focus, .form-select:focus {
    background: rgba(255,255,255,0.14);
    border-color: var(--accent);
    color: var(--text-light);
    box-shadow: 0 0 0 3px rgba(63,169,255,0.25);
}
.form-control::placeholder { color: var(--text-muted); }
.form-label { color: var(--text-muted); font-weight: 500; font-size: 0.95rem; }

input[type="file"].form-control { min-height: var(--tap-min); }

.input-group-text { min-height: var(--tap-min); display: flex; align-items: center; }

/* ---------- Table — dibungkus scroll horizontal LOKAL (bukan seluruh halaman) ---------- */
.table-responsive {
    width: 100%;
    max-width: 100%;
    -webkit-overflow-scrolling: touch;
}

.table-glass {
    width: 100%;
    background: transparent;
    color: var(--text-light);
    border-collapse: separate;
    border-spacing: 0 6px;
    font-size: 0.9rem;
}
.table-glass thead th {
    background: rgba(255,255,255,0.1);
    border: none;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    padding: 0.8rem;
    white-space: nowrap;
}
.table-glass tbody tr {
    background: rgba(255,255,255,0.06);
}
.table-glass tbody tr:hover { background: rgba(255,255,255,0.12); }
.table-glass td {
    border: none;
    padding: 0.75rem 0.8rem;
    vertical-align: middle;
}
.table-glass tbody tr td:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.table-glass tbody tr td:last-child { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

/* ---------- Badges ---------- */
.badge-glass {
    padding: 0.4em 0.8em;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.3px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    display: inline-block;
}

/* ---------- Stat cards (dashboard) — flex-wrap, 1 kolom di HP ---------- */
.stat-card {
    width: 100%;
    max-width: 100%;
    border-radius: var(--radius-lg);
    padding: 1.1rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(18px) saturate(160%);
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.stat-icon {
    width: 3.5rem;
    height: 3.5rem;
    flex-shrink: 0;
    border-radius: 1rem;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    background: linear-gradient(145deg, var(--accent), var(--accent-deep));
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.3), 0 6px 16px rgba(63,169,255,0.35);
}
.stat-value { font-size: 1.4rem; font-weight: 700; }
.stat-label { color: var(--text-muted); font-size: 0.9rem; }

/* ---------- Alerts ---------- */
.glass-alert {
    width: 100%;
    background: rgba(255,255,255,0.12);
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    border-radius: var(--radius-sm);
    backdrop-filter: blur(10px);
    font-size: 0.95rem;
    padding: 0.85rem 1rem;
}

/* ---------- Misc ---------- */
a { color: var(--accent-2); }
a:hover { color: var(--accent); }

.page-title {
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.modal-content {
    width: 100%;
    max-width: 100%;
    background: rgba(15, 35, 70, 0.85);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    color: var(--text-light);
}
.modal-dialog { max-width: min(92vw, 32rem); margin: 1rem auto; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 10px; }
::-webkit-scrollbar-track { background: transparent; }

/* =========================================================
   MEDIA QUERIES — Mobile First
   Basis (di atas) = tampilan HP kecil/standar.
   ≤480px  : penyesuaian HP sangat kecil
   ≤768px  : HP besar & tablet portrait — tetap 1 kolom
   ≥1024px : tablet lanskap ke atas / desktop — layout multi-kolom & sidebar tetap
   ========================================================= */

/* ---------- ≤480px : HP sangat kecil (360/390/412/414 masuk sini) ---------- */
@media (max-width: 480px) {
    html { font-size: 93.75%; } /* ~15px basis, tetap dalam rentang 14-16px */
    .container-fluid { padding-left: 0.75rem; padding-right: 0.75rem; }
    .main-content { padding: 0.75rem; }
    .card-body { padding: 0.85rem; }
    .login-box { padding: 1.5rem 1rem; }
    .page-title { font-size: 1.1rem; }
    .stat-value { font-size: 1.25rem; }
    .app-navbar .navbar-brand { font-size: 0.95rem; }
    .app-navbar .navbar-brand i { font-size: 1rem; }
}

/* ---------- ≤768px : HP besar & tablet portrait (tetap 1 kolom) ---------- */
@media (max-width: 768px) {
    .row > [class*="col-"] {
        width: 100%; /* paksa 1 kolom penuh di layar kecil */
    }
    .row.g-3 > [class*="col-6"],
    .row.g-3 > [class*="col-md-3"] {
        width: 100%; /* stat card tetap 1 kolom di HP, meski markup pakai col-6 */
    }
    .sidebar { min-height: auto; }
    .d-flex.gap-2 { flex-wrap: wrap; }
    .d-flex.gap-2 > .form-select,
    .d-flex.gap-2 > .form-control { width: 100%; }
    table.table-glass { min-width: 40rem; } /* kolom tetap terbaca, scroll lokal di wrapper */
}

/* ---------- ≥1024px : tablet lanskap & desktop ---------- */
@media (min-width: 1024px) {
    .container-fluid { padding-left: 1.5rem; padding-right: 1.5rem; }
    .main-content { padding: 1.75rem; }

    /* Sidebar tetap tampil sebagai kolom permanen */
    .app-sidebar-desktop {
        display: block;
        width: 16.5%;
        flex: 0 0 16.5%;
        max-width: 16.5%;
        min-height: 100vh;
    }
    .main-content.app-main-with-sidebar {
        width: 83.5%;
        flex: 0 0 83.5%;
        max-width: 83.5%;
    }

    /* Hamburger tidak diperlukan lagi di layar lebar */
    .mobile-menu-btn { display: none; }

    /* Baris kartu boleh berdampingan (grid multi-kolom) memakai satuan % relatif */
    .row.g-3 { display: flex; flex-wrap: wrap; }
}