/* ==========================================================================
   School Management System - Production Stylesheet v4.0
   Modern, Responsive, Readable, Print-Friendly
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800&display=swap');

/* ==================== CSS VARIABLES ==================== */
:root {
    /* Brand Colors */
    --primary: #1a2a44;
    --primary-dark: #0f172a;
    --primary-light: #2c3e6b;
    --secondary: #3b82f6;
    --accent: #f59e0b;
    --accent-dark: #d97706;

    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;

    /* Neutrals */
    --bg-light: #f8fafc;
    --bg-section: #f1f5f9;
    --bg-card: #ffffff;
    --bg-hover: #f9fafb;
    --text-dark: #0f172a;
    --text-body: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --border-dark: #cbd5e1;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
    --shadow-xl: 0 24px 64px rgba(0,0,0,0.16);

    /* Radii */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-pill: 50px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Font */
    --font-family: 'Nunito', system-ui, -apple-system, sans-serif;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1a2a44 0%, #2c3e6b 100%);
    --gradient-blue: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --gradient-green: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-orange: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-purple: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    --gradient-red: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --gradient-cyan: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
}

/* ==================== RESET & BASE ==================== */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-body);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    min-height: 100vh;
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { text-decoration:none; color:var(--primary); transition:color var(--transition-fast); }
a:hover { color:var(--secondary); }

img { max-width:100%; height:auto; display:block; }

::selection { background:var(--accent); color:var(--primary-dark); }

/* ==================== TYPOGRAPHY ==================== */
h1,h2,h3,h4,h5,h6 {
    font-weight:700;
    color:var(--text-dark);
    line-height:1.3;
    margin-bottom:0.5rem;
}
h1 { font-size:2.5rem; }
h2 { font-size:2rem; }
h3 { font-size:1.6rem; }
h4 { font-size:1.3rem; }
h5 { font-size:1.1rem; }
h6 { font-size:1rem; }

.text-muted { color:var(--text-muted)!important; }
.text-primary { color:var(--primary)!important; }

/* ==================== LAYOUT HELPERS ==================== */
.container-fluid { padding-left:1.5rem; padding-right:1.5rem; }
.section { padding:90px 0; }
.bg-light { background:var(--bg-section)!important; }

.section-header {
    text-align:center;
    margin-bottom:55px;
}
.section-title {
    font-size:2.5rem;
    font-weight:800;
    text-transform:uppercase;
    letter-spacing:1px;
    color:var(--primary);
    display:inline-block;
    margin-bottom:10px;
    padding-bottom:8px;
    border-bottom:3px solid var(--accent);
}
.section-subtitle {
    color:var(--text-muted);
    max-width:700px;
    margin:0 auto;
    font-size:1.1rem;
}

/* ==================== SIDEBAR & TOP NAVBAR ==================== */
/* Top Navbar */
.dashboard-navbar {
    background:#ffffff;
    backdrop-filter:blur(8px);
    box-shadow:0 4px 15px rgba(0,0,0,0.04);
    padding:0.5rem 0;
    border-bottom:1px solid var(--border);
    min-height:70px;
    position:sticky;
    top:0;
    z-index:1000;
}
.dashboard-navbar .navbar-brand {
    font-weight:800;
    font-size:1.5rem;
    color:var(--primary)!important;
    letter-spacing:-0.3px;
    display:flex;
    align-items:center;
    gap:8px;
}
.dashboard-navbar .navbar-brand i {
    color:var(--accent);
    font-size:1.6rem;
}
.dashboard-navbar .nav-link {
    font-weight:600;
    font-size:0.9rem;
    color:var(--text-body)!important;
    padding:0.5rem 1rem;
    border-radius:var(--radius-sm);
    display:flex;
    align-items:center;
    gap:6px;
    transition:var(--transition-base);
}
.dashboard-navbar .nav-link i { font-size:1rem; opacity:0.75; }
.dashboard-navbar .nav-link:hover,
.dashboard-navbar .nav-link.active {
    background:#eef2ff;
    color:var(--primary)!important;
    transform:translateY(-1px);
}
.dashboard-navbar .dropdown-menu {
    border:1px solid var(--border);
    border-radius:var(--radius-sm);
    box-shadow:var(--shadow-lg);
    padding:0.5rem;
    margin-top:0.5rem;
}
.dropdown-item {
    border-radius:0.5rem;
    padding:0.6rem 1rem;
    font-weight:600;
    color:var(--text-body);
}
.dropdown-item i { width:20px; color:var(--text-muted); }
.dropdown-item:hover { background:#f1f5f9; color:var(--primary); }
.dropdown-header {
    font-weight:700;
    color:var(--text-dark);
    font-size:0.75rem;
    text-transform:uppercase;
    letter-spacing:0.5px;
}
.user-avatar-mini {
    width:36px;
    height:36px;
    background:var(--gradient-primary);
    border-radius:50%;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    color:white;
    font-weight:700;
    font-size:0.9rem;
}

/* Sidebar (optional, use with .sidebar class) */
.sidebar {
    position:fixed;
    top:0;
    left:0;
    bottom:0;
    width:260px;
    background:var(--primary-dark);
    color:white;
    z-index:1040;
    transform:translateX(-100%);
    transition:transform var(--transition-slow);
    overflow-y:auto;
}
.sidebar.show { transform:translateX(0); }
.sidebar .sidebar-header {
    padding:1.5rem 1rem;
    text-align:center;
    border-bottom:1px solid rgba(255,255,255,0.1);
}
.sidebar .sidebar-header h3 { color:white; margin:0; }
.sidebar .nav-link {
    color:rgba(255,255,255,0.8);
    padding:0.8rem 1.5rem;
    font-weight:500;
    display:flex;
    align-items:center;
    gap:10px;
    transition:var(--transition-fast);
    border-left:3px solid transparent;
}
.sidebar .nav-link i { width:20px; }
.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background:rgba(255,255,255,0.1);
    color:white;
    border-left-color:var(--accent);
}
.sidebar-backdrop {
    position:fixed;
    inset:0;
    background:rgba(0,0,0,0.5);
    z-index:1030;
    opacity:0;
    visibility:hidden;
    transition:opacity var(--transition-base);
}
.sidebar-backdrop.show { opacity:1; visibility:visible; }

/* Main content wrapper if sidebar used */
.main-content {
    margin-left:260px;
    transition:margin-left var(--transition-slow);
}
.main-content.sidebar-collapsed { margin-left:0; }

/* ==================== STAT CARDS ==================== */
.stat-cards-grid {
    display:grid;
    grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));
    gap:1.5rem;
    margin-bottom:2rem;
}
.stat-card {
    background:var(--bg-card);
    border-radius:var(--radius-lg);
    padding:1.75rem;
    box-shadow:var(--shadow-sm);
    border:2px solid transparent;
    position:relative;
    transition:var(--transition-base);
    overflow:hidden;
}
.stat-card::before {
    content:'';
    position:absolute;
    inset:0;
    border-radius:var(--radius-lg);
    padding:2px;
    background:linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite:xor;
    mask-composite:exclude;
    opacity:0;
    transition:opacity 0.3s;
    pointer-events:none;
}
.stat-card:hover::before { opacity:1; }
.stat-card:hover { transform:translateY(-5px); box-shadow:var(--shadow-lg); }
.stat-card::after {
    content:'';
    position:absolute;
    top:0;
    left:10%;
    width:80%;
    height:5px;
    border-radius:0 0 8px 8px;
}
.stat-card:nth-child(1)::after { background:var(--gradient-primary); }
.stat-card:nth-child(2)::after { background:var(--gradient-green); }
.stat-card:nth-child(3)::after { background:var(--gradient-orange); }
.stat-card:nth-child(4)::after { background:var(--gradient-purple); }
.stat-card:nth-child(5)::after { background:var(--gradient-cyan); }
.stat-card:nth-child(6)::after { background:var(--gradient-red); }

.stat-card.dashboard-stat {
    display:flex;
    align-items:center;
    gap:15px;
    padding:20px;
    text-align:left;
}
.stat-card.dashboard-stat .icon-box { flex-shrink:0; }

.icon-box {
    width:48px;
    height:48px;
    border-radius:var(--radius-sm);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:1.5rem;
    margin-bottom:1rem;
    transition:transform 0.3s, background 0.3s;
}
.stat-card:hover .icon-box {
    transform:scale(1.1);
    background:white!important;
    box-shadow:0 4px 10px rgba(0,0,0,0.08);
}
.icon-box.blue   { background:linear-gradient(135deg, #dbeafe, #bfdbfe); color:var(--primary); }
.icon-box.green  { background:linear-gradient(135deg, #d1fae5, #a7f3d0); color:var(--success); }
.icon-box.orange { background:linear-gradient(135deg, #ffedd5, #fed7aa); color:var(--accent); }
.icon-box.purple { background:linear-gradient(135deg, #ede9fe, #ddd6fe); color:var(--secondary); }
.icon-box.red    { background:linear-gradient(135deg, #fee2e2, #fecaca); color:var(--danger); }
.icon-box.indigo { background:linear-gradient(135deg, #cffafe, #a5f3fc); color:var(--info); }

.stat-card .value {
    font-size:2rem;
    font-weight:800;
    color:var(--text-dark);
    line-height:1;
    margin-bottom:4px;
}
.stat-card .label {
    font-size:0.85rem;
    font-weight:700;
    color:var(--text-muted);
    text-transform:uppercase;
    letter-spacing:0.6px;
}

/* ==================== CARDS & CONTAINERS ==================== */
.info-card,
.overall-card,
.chart-card,
.subject-card,
.notification-card,
.event-card,
.alumni-card,
.sport-card,
.feedback-card,
.performance-card {
    background:var(--bg-card);
    border-radius:var(--radius-lg);
    padding:24px;
    box-shadow:var(--shadow-sm);
    border:2px solid transparent;
    transition:var(--transition-base);
    position:relative;
    overflow:hidden;
}
.info-card:hover,
.overall-card:hover,
.chart-card:hover,
.subject-card:hover,
.notification-card:hover,
.event-card:hover,
.alumni-card:hover,
.sport-card:hover,
.feedback-card:hover,
.performance-card:hover {
    transform:translateY(-4px);
    box-shadow:var(--shadow-md);
    border-color:var(--border-dark);
}
.notification-card::before,
.event-card::before,
.alumni-card::before,
.sport-card::before {
    content:'';
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:4px;
    background:linear-gradient(90deg, var(--primary), var(--secondary));
    transform:scaleX(0);
    transform-origin:left;
    transition:transform var(--transition-base);
}
.notification-card:hover::before,
.event-card:hover::before,
.alumni-card:hover::before,
.sport-card:hover::before { transform:scaleX(1); }

.card-header-title {
    background:var(--bg-light);
    padding:14px 20px;
    font-weight:700;
    color:var(--text-dark);
    border-bottom:1px solid var(--border);
    display:flex;
    align-items:center;
    font-size:1.1rem;
}
.card-header-title i { color:var(--primary); }

/* ==================== BUTTONS ==================== */
.btn {
    font-weight:700;
    font-size:0.85rem;
    padding:0.6rem 1.4rem;
    border-radius:2rem;
    border:none;
    cursor:pointer;
    transition:var(--transition-base);
    display:inline-flex;
    align-items:center;
    gap:6px;
    position:relative;
    overflow:hidden;
    text-shadow:0 1px 1px rgba(0,0,0,0.1);
    box-shadow:0 4px 10px rgba(37,99,235,0.2);
    background:var(--gradient-primary);
    color:#ffffff;
}
.btn::before {
    content:'';
    position:absolute;
    top:0;
    left:-100%;
    width:100%;
    height:100%;
    background:linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition:left 0.5s;
}
.btn:hover::before { left:100%; }
.btn:hover {
    transform:translateY(-2px);
    box-shadow:0 6px 15px rgba(37,99,235,0.3);
}
.btn:active { transform:translateY(1px); }
.btn-success { background:var(--gradient-green); box-shadow:0 4px 10px rgba(16,185,129,0.3); }
.btn-warning { background:var(--gradient-orange); box-shadow:0 4px 10px rgba(245,158,11,0.3); }
.btn-danger  { background:var(--gradient-red); box-shadow:0 4px 10px rgba(239,68,68,0.3); }
.btn-info    { background:var(--gradient-cyan); box-shadow:0 4px 10px rgba(6,182,212,0.3); }
.btn-secondary { background:linear-gradient(135deg, #64748b, #475569); box-shadow:0 4px 10px rgba(100,116,139,0.3); }
.btn-outline-primary {
    background:transparent;
    border:2px solid var(--primary);
    color:var(--primary);
    box-shadow:none;
    text-shadow:none;
}
.btn-outline-primary:hover { background:var(--primary); color:white; }
.btn-sm { padding:0.4rem 1rem; font-size:0.8rem; }
.btn-lg { padding:0.8rem 1.8rem; font-size:1rem; }

/* ==================== FORMS ==================== */
.form-control,
.form-select {
    border-radius:var(--radius-md);
    padding:11px 16px;
    border:1px solid var(--border-dark);
    background:#fff;
    transition:border-color var(--transition-fast), box-shadow var(--transition-fast);
    font-size:0.95rem;
}
.form-control:focus,
.form-select:focus {
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(26,42,68,0.15);
    outline:none;
}
.form-label {
    font-weight:600;
    color:var(--text-dark);
    margin-bottom:6px;
}
.input-group-text {
    background:var(--bg-light);
    border:1px solid var(--border-dark);
}

/* Multi-column form layout */
.form-row {
    display:flex;
    flex-wrap:wrap;
    gap:1rem;
}
.form-row .form-group {
    flex:1 1 200px;
}
.form-group {
    margin-bottom:1rem;
}

/* ==================== TABLES ==================== */
.table {
    color:var(--text-body);
    --bs-table-hover-bg:var(--bg-hover);
    margin-bottom:0;
}
.table thead th {
    background:var(--bg-light);
    color:var(--text-dark);
    font-weight:700;
    border-bottom:2px solid var(--border);
}
.table td,
.table th {
    padding:0.75rem;
    vertical-align:middle;
    border-color:var(--border);
}
.table-hover tbody tr:hover { background-color:var(--bg-hover); }
.table-responsive {
    border-radius:var(--radius-md);
    overflow-x:auto;
}

/* Modern table */
.table-modern {
    border-collapse:separate;
    border-spacing:0;
    width:100%;
    border:1px solid var(--border);
    border-radius:var(--radius-md);
    overflow:hidden;
    box-shadow:0 2px 8px rgba(0,0,0,0.02);
}
.table-modern thead th {
    background:var(--gradient-primary);
    color:#ffffff;
    border-bottom:3px solid var(--accent);
    padding:14px 18px;
    text-align:left;
    font-weight:700;
    font-size:0.8rem;
    text-transform:uppercase;
    letter-spacing:0.8px;
    border:none;
    position:relative;
}
.table-modern tbody td {
    padding:14px 18px;
    border-bottom:1px solid #f1f5f9;
    color:var(--text-body);
    font-size:0.9rem;
    background:white;
}
.table-modern tbody tr:last-child td { border-bottom:none; }
.table-modern tbody tr:hover td { background:var(--bg-hover); }

/* Responsive table cards on small screens */
@media (max-width:768px) {
    .table-modern thead { display:none; }
    .table-modern, .table-modern tbody, .table-modern tr, .table-modern td {
        display:block;
        width:100%;
    }
    .table-modern tr {
        margin-bottom:1rem;
        border:1px solid var(--border);
        border-radius:var(--radius-sm);
        box-shadow:var(--shadow-sm);
        padding:0.5rem;
        background:white;
    }
    .table-modern td {
        text-align:right;
        padding-left:50%;
        position:relative;
        border:none;
        border-bottom:1px solid #f1f5f9;
    }
    .table-modern td::before {
        content:attr(data-label);
        position:absolute;
        left:1rem;
        font-weight:700;
        text-transform:uppercase;
        font-size:0.75rem;
        color:var(--text-muted);
    }
}

/* ==================== TABS ==================== */
.nav-tabs {
    border-bottom:2px solid var(--border);
    gap:4px;
    background-color:var(--bg-light);
    padding:6px;
    border-radius:var(--radius-md);
    margin-bottom:20px;
    flex-wrap:nowrap;
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
}
.nav-tabs .nav-link {
    border:none!important;
    border-radius:var(--radius-sm);
    padding:10px 18px;
    font-weight:600;
    color:var(--text-muted);
    background-color:transparent;
    transition:var(--transition-base);
    position:relative;
    white-space:nowrap;
}
.nav-tabs .nav-link:hover {
    background-color:var(--bg-hover);
    color:var(--primary);
    transform:translateY(-1px);
    box-shadow:var(--shadow-xs);
}
.nav-tabs .nav-link.active {
    background:var(--gradient-primary);
    color:#ffffff!important;
    font-weight:700;
    box-shadow:0 4px 12px rgba(26,42,68,0.3);
    border-radius:var(--radius-sm);
}
.nav-tabs .nav-link.active::after {
    content:'';
    position:absolute;
    bottom:-8px;
    left:50%;
    transform:translateX(-50%);
    border-left:6px solid transparent;
    border-right:6px solid transparent;
    border-bottom:6px solid var(--bg-card);
}
.tab-content {
    background:var(--bg-card);
    padding:20px;
    border-radius:0 var(--radius-md) var(--radius-md) var(--radius-md);
    box-shadow:var(--shadow-sm);
    border:1px solid var(--border);
    border-top:none;
}
.tab-pane .table-responsive { margin-top:10px; }

/* ==================== ACCORDION ==================== */
.accordion-item {
    border:1px solid var(--border);
    border-radius:var(--radius-md)!important;
    margin-bottom:10px;
    overflow:hidden;
}
.accordion-button {
    font-weight:600;
    color:var(--text-dark);
    background:var(--bg-card);
    padding:14px 20px;
}
.accordion-button:not(.collapsed) {
    background:rgba(26,42,68,0.05);
    color:var(--primary);
    box-shadow:none;
}
.accordion-button:focus { box-shadow:none; border-color:var(--border); }
.accordion-body { padding:15px 20px; }

/* ==================== ALERTS & BADGES ==================== */
.alert {
    border-radius:var(--radius-md);
    border:none;
    padding:15px 20px;
}
.alert-success { background:#ecfdf5; color:#065f46; }
.alert-danger  { background:#fef2f2; color:#991b1b; }
.alert-warning { background:#fffbeb; color:#92400e; }
.alert-info    { background:#eff6ff; color:#1e40af; }

.badge {
    font-weight:700;
    padding:5px 14px;
    border-radius:var(--radius-pill);
    background:var(--gradient-primary);
    color:white;
    text-shadow:0 1px 2px rgba(0,0,0,0.1);
}
.bg-success { background-color:var(--success)!important; }
.bg-warning { background-color:var(--warning)!important; }
.bg-danger  { background-color:var(--danger)!important; }
.bg-info    { background-color:var(--info)!important; }
.bg-secondary { background-color:#64748b!important; }

/* ==================== MODALS ==================== */
.modal-content {
    border:none;
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-xl);
}
.modal-header {
    border-bottom:1px solid var(--border);
    padding:20px 24px;
}
.modal-title { font-weight:700; }
.modal-body { padding:24px; }
.modal-footer {
    border-top:1px solid var(--border);
    padding:16px 24px;
}
.modal-header.bg-primary .modal-title { color:#ffffff; }
.modal-header.bg-primary .btn-close-white { filter:brightness(0) invert(1); }

/* ==================== TOAST NOTIFICATIONS ==================== */
.toast-container {
    position:fixed;
    top:1rem;
    right:1rem;
    z-index:1080;
    display:flex;
    flex-direction:column;
    gap:0.5rem;
}
.toast {
    background:white;
    border-radius:var(--radius-md);
    box-shadow:var(--shadow-lg);
    padding:1rem 1.5rem;
    display:flex;
    align-items:center;
    gap:0.75rem;
    min-width:280px;
    max-width:400px;
    border-left:4px solid var(--primary);
    animation:slideInRight 0.3s ease;
}
.toast.success { border-left-color:var(--success); }
.toast.error   { border-left-color:var(--danger); }
.toast.warning { border-left-color:var(--warning); }
.toast.info    { border-left-color:var(--info); }
.toast .toast-icon { font-size:1.5rem; }
.toast .toast-message { flex:1; }
.toast .toast-close {
    cursor:pointer;
    font-size:1.2rem;
    color:var(--text-muted);
    transition:color var(--transition-fast);
}
.toast .toast-close:hover { color:var(--text-dark); }

@keyframes slideInRight {
    from { transform:translateX(100%); opacity:0; }
    to   { transform:translateX(0); opacity:1; }
}

/* ==================== LOGIN / AUTH PAGES ==================== */
.auth-wrapper {
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    background:var(--gradient-primary);
    padding:1rem;
}
.auth-card {
    background:white;
    border-radius:var(--radius-xl);
    box-shadow:var(--shadow-xl);
    overflow:hidden;
    width:100%;
    max-width:420px;
    padding:2.5rem;
}
.auth-card .auth-logo {
    text-align:center;
    margin-bottom:2rem;
}
.auth-card .auth-logo img { max-height:80px; margin:0 auto; }
.auth-card .form-control {
    margin-bottom:1rem;
}
.auth-card .btn {
    width:100%;
    margin-top:1rem;
}
.auth-card .auth-footer {
    text-align:center;
    margin-top:1.5rem;
    font-size:0.9rem;
}

/* ==================== PROFILE PAGE ==================== */
.profile-header {
    background:var(--gradient-primary);
    border-radius:var(--radius-lg);
    padding:2rem;
    color:white;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:1.5rem;
    margin-bottom:2rem;
}
.profile-avatar {
    width:100px;
    height:100px;
    border-radius:50%;
    background:white;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:3rem;
    font-weight:800;
    color:var(--primary);
    border:4px solid rgba(255,255,255,0.3);
}
.profile-info h3 { color:white; margin:0; }
.profile-info p { margin:0.2rem 0 0; color:rgba(255,255,255,0.8); }

/* ==================== TIMELINE ==================== */
.timeline {
    position:relative;
    padding-left:2rem;
}
.timeline::before {
    content:'';
    position:absolute;
    left:0.75rem;
    top:0;
    bottom:0;
    width:2px;
    background:var(--border);
}
.timeline-item {
    position:relative;
    padding-bottom:2rem;
}
.timeline-item:last-child { padding-bottom:0; }
.timeline-item::before {
    content:'';
    position:absolute;
    left:-1.75rem;
    top:0.25rem;
    width:12px;
    height:12px;
    border-radius:50%;
    background:var(--primary);
    border:2px solid white;
    box-shadow:0 0 0 3px var(--primary);
}
.timeline-item .timeline-date {
    font-size:0.85rem;
    color:var(--text-muted);
    font-weight:600;
}
.timeline-item .timeline-content {
    background:var(--bg-card);
    border-radius:var(--radius-md);
    padding:1rem;
    box-shadow:var(--shadow-xs);
    border:1px solid var(--border);
}

/* ==================== CALENDAR / EVENTS ==================== */
.event-list {
    list-style:none;
    padding:0;
    margin:0;
}
.event-list li {
    display:flex;
    align-items:center;
    gap:1rem;
    padding:0.75rem;
    border-bottom:1px solid var(--border);
}
.event-list li:last-child { border-bottom:none; }
.event-date {
    width:50px;
    height:50px;
    background:var(--bg-light);
    border-radius:var(--radius-sm);
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    font-weight:700;
    line-height:1;
}
.event-date .day { font-size:1.2rem; color:var(--primary); }
.event-date .month { font-size:0.7rem; text-transform:uppercase; color:var(--text-muted); }
.event-details h6 { margin:0; }
.event-details p { margin:0; font-size:0.85rem; color:var(--text-muted); }

/* ==================== CHARTS / PREDICTIONS ==================== */
.chart-container {
    position:relative;
    height:300px;
    width:100%;
}
.prediction-badge {
    display:inline-flex;
    align-items:center;
    gap:0.5rem;
    padding:0.4rem 1rem;
    border-radius:var(--radius-pill);
    font-weight:600;
    font-size:0.85rem;
    background:rgba(59,130,246,0.1);
    color:var(--secondary);
}
.prediction-badge.high { background:rgba(16,185,129,0.1); color:var(--success); }
.prediction-badge.medium { background:rgba(245,158,11,0.1); color:var(--warning); }
.prediction-badge.low { background:rgba(239,68,68,0.1); color:var(--danger); }

/* ==================== PRINT STYLES ==================== */
@media print {
    body {
        background:white;
        color:black;
        font-size:12pt;
    }
    .sidebar,
    .dashboard-navbar,
    .back-to-top,
    .no-print,
    .btn,
    .toast-container,
    .modal {
        display:none !important;
    }
    .main-content {
        margin-left:0 !important;
    }
    .table-modern thead th {
        background:#f1f5f9 !important;
        color:black !important;
        border-bottom:2px solid #000 !important;
    }
    .table-modern tbody td {
        border-bottom:1px solid #ccc !important;
    }
    .stat-card,
    .info-card,
    .chart-card,
    .card {
        box-shadow:none !important;
        border:1px solid #ddd !important;
    }
    a {
        text-decoration:none;
        color:black;
    }
    .container-fluid {
        padding:0 !important;
    }
}

/* ==================== UTILITY CLASSES ==================== */
.d-flex { display:flex !important; }
.flex-wrap { flex-wrap:wrap !important; }
.align-items-center { align-items:center !important; }
.justify-content-between { justify-content:space-between !important; }
.gap-1 { gap:0.25rem !important; }
.gap-2 { gap:0.5rem !important; }
.gap-3 { gap:1rem !important; }
.mt-1 { margin-top:0.25rem !important; }
.mt-2 { margin-top:0.5rem !important; }
.mt-3 { margin-top:1rem !important; }
.mt-4 { margin-top:1.5rem !important; }
.mt-5 { margin-top:3rem !important; }
.mb-1 { margin-bottom:0.25rem !important; }
.mb-2 { margin-bottom:0.5rem !important; }
.mb-3 { margin-bottom:1rem !important; }
.mb-4 { margin-bottom:1.5rem !important; }
.mb-5 { margin-bottom:3rem !important; }
.ms-auto { margin-left:auto !important; }
.me-auto { margin-right:auto !important; }
.text-center { text-align:center !important; }
.text-end { text-align:right !important; }
.text-start { text-align:left !important; }
.fw-bold { font-weight:700 !important; }
.fw-semibold { font-weight:600 !important; }
.w-100 { width:100% !important; }
.h-100 { height:100% !important; }
.rounded { border-radius:var(--radius-md) !important; }
.shadow-sm { box-shadow:var(--shadow-sm) !important; }
.shadow-md { box-shadow:var(--shadow-md) !important; }
.shadow-lg { box-shadow:var(--shadow-lg) !important; }
.bg-white { background:white !important; }
.bg-gradient-primary { background:var(--gradient-primary) !important; }
.bg-gradient-green { background:var(--gradient-green) !important; }
.bg-gradient-orange { background:var(--gradient-orange) !important; }
.bg-gradient-purple { background:var(--gradient-purple) !important; }
.bg-gradient-red { background:var(--gradient-red) !important; }
.bg-gradient-cyan { background:var(--gradient-cyan) !important; }
.text-white { color:white !important; }
.text-dark { color:var(--text-dark) !important; }

/* ==================== RESPONSIVE BREAKPOINTS ==================== */
@media (max-width: 1200px) {
    .container-fluid { padding-left:1rem; padding-right:1rem; }
}
@media (max-width: 992px) {
    .section { padding:70px 0; }
    .section-title { font-size:2.2rem; }
    .stat-cards-grid { grid-template-columns:repeat(2, 1fr); }
    .main-content { margin-left:0; }
    .sidebar { width:240px; }
}
@media (max-width: 768px) {
    .dashboard-navbar .navbar-brand { font-size:1.3rem; }
    .stat-card .value { font-size:1.75rem; }
    .section-title { font-size:1.8rem; }
    .footer { padding:40px 0 20px; }
    .hero-carousel .hero-slide { height:70vh; background-attachment:scroll; }
    .hero-carousel .hero-slide h1 { font-size:2.3rem; }
    .hero-carousel .owl-nav button { width:40px; height:60px; font-size:22px!important; }
    .table-modern thead { display:none; }
    .table-modern, .table-modern tbody, .table-modern tr, .table-modern td {
        display:block;
        width:100%;
    }
    .table-modern tr {
        margin-bottom:1rem;
        border:1px solid var(--border);
        border-radius:var(--radius-sm);
        box-shadow:var(--shadow-sm);
        padding:0.5rem;
        background:white;
    }
    .table-modern td {
        text-align:right;
        padding-left:50%;
        position:relative;
        border:none;
        border-bottom:1px solid #f1f5f9;
    }
    .table-modern td::before {
        content:attr(data-label);
        position:absolute;
        left:1rem;
        font-weight:700;
        text-transform:uppercase;
        font-size:0.75rem;
        color:var(--text-muted);
    }
    .form-row {
        flex-direction:column;
        gap:0.5rem;
    }
    .form-row .form-group {
        flex:1 1 auto;
    }
}
@media (max-width: 576px) {
    .stat-cards-grid { grid-template-columns:1fr; }
    .stat-card.dashboard-stat {
        flex-direction:column;
        text-align:center;
        align-items:center;
        gap:10px;
    }
    .stat-card.dashboard-stat .icon-box { margin-bottom:5px; }
    .btn-sm { padding:0.4rem 0.8rem; font-size:0.75rem; }
    .back-to-top { bottom:15px; right:15px; width:40px; height:40px; }
    .hero-carousel .hero-slide { height:60vh; }
    .hero-carousel .hero-slide h1 { font-size:1.9rem; }
    .auth-card { padding:1.5rem; }
    .profile-header { flex-direction:column; text-align:center; }
}