/* ===== GOOGLE FONTS FALLBACK ===== */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    --primary: #009688;
    --primary-dark: #00796B;
    --secondary: #1a1a2e;
    --background: #f0faf9;
    --sidebar-width: 220px;
    --navbar-height: 60px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }
body {
    font-family: 'Plus Jakarta Sans', 'Segoe UI', Arial, sans-serif;
    background: #f0faf9;
    color: #1a202c;
    min-height: 100vh;
    overflow-x: hidden;
}
img, svg { max-width: 100%; height: auto; }

/* ========== NAVBAR ========== */
.navbar-custom {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%) !important;
    min-height: var(--navbar-height);
    padding: 0 24px;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.2);
    gap: 14px;
}
.navbar-custom .navbar-brand {
    color: white !important;
    font-weight: 800;
    font-size: 1.2rem;
    text-decoration: none;
    white-space: nowrap;
}
.navbar-custom .ms-auto {
    margin-left: auto !important;
    display: flex;
    align-items: center;
    gap: 12px;
}
.navbar-custom .text-white { color: rgba(255,255,255,0.85) !important; font-size: 0.875rem; }

/* ===== HAMBURGER TOGGLE (mobile & tablet) ===== */
.hamburger-btn {
    display: none;
    background: rgba(255,255,255,0.1);
    border: none;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    font-size: 1.25rem;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.2s ease;
}
.hamburger-btn:hover, .hamburger-btn:active { background: rgba(255,255,255,0.2); }

/* Backdrop shown behind the sidebar drawer on small screens */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 899;
    opacity: 0;
    transition: opacity 0.25s ease;
}
.sidebar-overlay.show {
    display: block;
    opacity: 1;
}

/* ========== SIDEBAR ========== */
.sidebar {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--navbar-height));
    background: linear-gradient(180deg, #1a1a2e 0%, #0f3460 100%);
    padding: 20px 12px;
    display: flex !important;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
    z-index: 900;
    box-shadow: 2px 0 15px rgba(0,0,0,0.15);
    transition: transform 0.3s ease;
}
.sidebar a {
    display: flex !important;
    align-items: center;
    padding: 11px 14px;
    color: rgba(255,255,255,0.72) !important;
    text-decoration: none !important;
    border-radius: 10px;
    font-size: 0.88rem;
    font-weight: 500;
    transition: all 0.25s ease;
    border: 1px solid transparent;
    gap: 8px;
}
.sidebar a:hover {
    background: rgba(0,150,136,0.25) !important;
    color: white !important;
    border-color: rgba(0,150,136,0.35);
    transform: translateX(3px);
}
.sidebar a.active {
    background: var(--primary) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(0,150,136,0.4);
}
.sidebar-logout {
    margin-top: auto !important;
    color: rgba(255,120,120,0.8) !important;
}

/* ========== MAIN LAYOUT ========== */
.layout-wrapper {
    display: flex;
    padding-top: var(--navbar-height);
    min-height: 100vh;
}
.main-content {
    margin-left: var(--sidebar-width);
    padding: 28px;
    flex: 1;
    min-height: calc(100vh - var(--navbar-height));
}

/* ========== PAGE HEADER ========== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
}
.page-header h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin: 0 0 4px;
    color: #1a202c;
}
.page-header .subtitle {
    color: #718096;
    font-size: 0.875rem;
}

/* ========== CARDS ========== */
.card {
    border: none !important;
    border-radius: 18px !important;
    background: rgba(255,255,255,0.92) !important;
    box-shadow: 0 4px 20px rgba(0,150,136,0.1) !important;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(0,150,136,0.18) !important; }

.card-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
    color: white !important;
    font-weight: 700;
    padding: 18px 24px;
    border-radius: 18px 18px 0 0 !important;
    border: none !important;
    font-size: 1rem;
    letter-spacing: 0.3px;
}
.card-body { padding: 24px; }

/* ========== STAT CARDS ========== */
.stat-card {
    background: rgba(255,255,255,0.92);
    border-radius: 16px;
    padding: 22px 20px;
    box-shadow: 0 4px 20px rgba(0,150,136,0.1);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
}
.stat-card:hover { transform: translateY(-5px); }
.stat-card::after {
    content: '';
    position: absolute;
    top: -15px; right: -15px;
    width: 70px; height: 70px;
    border-radius: 50%;
    background: rgba(0,150,136,0.07);
}
.stat-card .stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin: 6px 0 5px;
}
.stat-card .stat-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: #718096;
    text-transform: uppercase;
    letter-spacing: 0.7px;
}
.stat-card .stat-icon { font-size: 1.6rem; position: absolute; top: 18px; right: 20px; opacity: 0.55; }

/* ========== BUTTONS ========== */
.btn-custom {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white !important;
    border: none;
    border-radius: 10px;
    padding: 10px 22px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,150,136,0.25);
    display: inline-block;
    text-decoration: none;
}
.btn-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,150,136,0.4);
    color: white !important;
    background: linear-gradient(135deg, var(--primary-dark), #004D40);
}

/* Bootstrap button overrides */
.btn { border-radius: 10px !important; font-weight: 600 !important; transition: all 0.25s !important; }
.btn:hover { transform: translateY(-1px); }
.btn-success { background: linear-gradient(135deg,#22c55e,#16a34a) !important; border:none !important; }
.btn-danger  { background: linear-gradient(135deg,#ef4444,#dc2626) !important; border:none !important; }
.btn-warning { background: linear-gradient(135deg,#f59e0b,#d97706) !important; border:none !important; color:white !important; }
.btn-secondary { background: linear-gradient(135deg,#64748b,#475569) !important; border:none !important; color:white !important; }
.btn-info    { background: linear-gradient(135deg,#06b6d4,#0891b2) !important; border:none !important; color:white !important; }
.btn-primary { background: linear-gradient(135deg,var(--primary),#00acc1) !important; border:none !important; }

/* ========== FORMS ========== */
.form-control, .form-select {
    border: 2px solid #e2e8f0 !important;
    border-radius: 10px !important;
    padding: 11px 14px !important;
    font-size: 0.9rem !important;
    background: rgba(255,255,255,0.9) !important;
    transition: all 0.25s !important;
    color: #1a202c !important;
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 4px rgba(0,150,136,0.12) !important;
    background: white !important;
    outline: none !important;
}
.form-label { font-weight: 600; font-size: 0.875rem; color: #374151; margin-bottom: 5px; }

/* ========== TABLES ========== */
.table-wrapper {
    border-radius: 16px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.table { margin-bottom: 0 !important; min-width: 640px; }
.table thead th {
    background: linear-gradient(135deg, #1a1a2e, #16213e) !important;
    color: white !important;
    padding: 13px 16px !important;
    font-size: 0.78rem !important;
    text-transform: uppercase;
    letter-spacing: 0.7px;
    font-weight: 700 !important;
    border: none !important;
    white-space: nowrap;
}
.table tbody td {
    padding: 13px 16px !important;
    vertical-align: middle;
    border-bottom: 1px solid rgba(0,150,136,0.07) !important;
    font-size: 0.88rem;
    border-top: none !important;
}
.table tbody tr:hover { background: rgba(0,150,136,0.04) !important; }
.table tbody tr:last-child td { border-bottom: none !important; }

/* ========== BADGES ========== */
.badge { padding: 5px 11px !important; border-radius: 50px !important; font-size: 0.76rem !important; font-weight: 600 !important; }

/* ========== LOGIN PAGE ========== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
    padding: 20px;
}
.login-box {
    width: 420px !important;
    margin: 0 !important;
    border-radius: 20px !important;
}
.login-box .card-header {
    background: linear-gradient(135deg, #1a1a2e, #0f3460) !important;
    padding: 28px 32px !important;
    border-radius: 20px 20px 0 0 !important;
    text-align: center;
}
.login-box .card-body { padding: 32px; }

/* ========== FOOTER ========== */
.footer { text-align: center; color: #718096; padding: 28px 0 12px; font-size: 0.82rem; }
.section-divider { height: 1px; background: linear-gradient(to right, transparent, rgba(0,150,136,0.2), transparent); margin: 20px 0; }

/* ========== RESPONSIVE ========== */

/* --- Tablet & Mobile (<=992px): sidebar becomes an off-canvas drawer --- */
@media (max-width: 992px) {
    .hamburger-btn { display: flex; }

    .sidebar {
        transform: translateX(-100%);
        width: min(var(--sidebar-width), 78vw);
        box-shadow: 4px 0 24px rgba(0,0,0,0.25);
    }
    .sidebar.show { transform: translateX(0); }

    .main-content { margin-left: 0 !important; }

    body.sidebar-open { overflow: hidden; }
}

/* --- Tablet (768px - 992px) --- */
@media (max-width: 992px) and (min-width: 577px) {
    .main-content { padding: 24px; }
}

/* --- Mobile (<=768px) --- */
@media (max-width: 768px) {
    .main-content { padding: 16px !important; }
    .login-box { width: 92% !important; }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .page-header h2 { font-size: 1.3rem; }

    .navbar-custom { padding: 0 14px; }
    .navbar-custom .navbar-brand { font-size: 1.05rem; }

    .card-body { padding: 16px; }
    .card-header { padding: 14px 18px; }

    .stat-card { padding: 16px 14px; }
    .stat-card .stat-number { font-size: 1.7rem; }
}

/* --- Small phones (<=480px) --- */
@media (max-width: 480px) {
    .navbar-custom .text-white { display: none; }
    .navbar-brand { font-size: 0.95rem !important; }

    .stat-card .stat-icon { font-size: 1.3rem; top: 14px; right: 14px; }
    .stat-card .stat-number { font-size: 1.4rem; }
    .stat-card .stat-label { font-size: 0.7rem; }

    .btn-custom, .btn { font-size: 0.85rem !important; padding: 9px 16px !important; }
}

/* --- Large desktop: keep content comfortably centered / readable --- */
@media (min-width: 1600px) {
    .main-content { padding: 32px 48px; }
}