/* ========================================
   ENTERPRISE DASHBOARD THEME v2.0
   Professional Icons with Font Awesome
   ======================================== */

/* Font Awesome CDN */
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Primary Colors */
    --primary: #0B1A33;
    --primary-dark: #060F1F;
    --primary-light: #1A2D4A;
    --primary-hover: #0F2440;
    
    /* Accent */
    --accent: #2563EB;
    --accent-light: #3B82F6;
    --accent-dark: #1D4ED8;
    --accent-bg: #EFF6FF;
    
    /* Status Colors */
    --success: #16A34A;
    --success-bg: #F0FDF4;
    --danger: #DC2626;
    --danger-bg: #FEF2F2;
    --warning: #F59E0B;
    --warning-bg: #FFFBEB;
    --info: #2563EB;
    --info-bg: #EFF6FF;
    
    /* Neutrals */
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    
    /* Sizes */
    --sidebar-width: 260px;
    --header-height: 64px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.10);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
    
    /* Radius */
    --radius: 12px;
    --radius-sm: 6px;
    --radius-lg: 16px;
    
    /* Transition */
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); }

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-12px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-fade { animation: fadeIn 0.4s ease forwards; }
.animate-slide { animation: slideIn 0.35s ease forwards; }
.animate-spin { animation: spin 1s linear infinite; }

/* ========================================
   LAYOUT
   ======================================== */

/* ===== SIDEBAR ===== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--primary);
    color: var(--white);
    overflow-y: auto;
    z-index: 1000;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 10px; }

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    min-height: var(--header-height);
}

.sidebar-brand .logo-icon {
    font-size: 1.4rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    border-radius: 10px;
    color: var(--white);
}

.sidebar-brand .brand-text {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.sidebar-brand .brand-text span {
    font-weight: 300;
    opacity: 0.6;
}

.sidebar-menu {
    flex: 1;
    padding: 16px 12px;
}

.sidebar-menu .menu-label {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: rgba(255,255,255,0.25);
    padding: 12px 12px 6px;
    font-weight: 700;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    color: rgba(255,255,255,0.55);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2px;
}

.sidebar-menu a:hover {
    background: rgba(255,255,255,0.06);
    color: var(--white);
}

.sidebar-menu a.active {
    background: var(--accent);
    color: var(--white);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.sidebar-menu a .icon {
    font-size: 1rem;
    width: 20px;
    text-align: center;
}

.sidebar-menu a .badge {
    margin-left: auto;
    background: rgba(255,255,255,0.12);
    padding: 1px 10px;
    border-radius: 12px;
    font-size: 0.65rem;
    font-weight: 600;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.sidebar-footer .user-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.sidebar-footer .user-card:hover {
    background: rgba(255,255,255,0.06);
}

.sidebar-footer .user-card .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--white);
}

.sidebar-footer .user-card .user-info {
    flex: 1;
}

.sidebar-footer .user-card .user-info .name {
    font-size: 0.85rem;
    font-weight: 600;
}

.sidebar-footer .user-card .user-info .role {
    font-size: 0.7rem;
    opacity: 0.4;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: var(--transition);
}

/* ===== HEADER ===== */
.top-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 0 32px;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-header .header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.top-header .header-left .menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--gray-600);
    padding: 4px;
}

.top-header .header-left .page-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-800);
}

.top-header .header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.top-header .header-right .search-box {
    display: flex;
    align-items: center;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    padding: 6px 14px;
    gap: 10px;
}

.top-header .header-right .search-box i {
    color: var(--gray-400);
    font-size: 0.85rem;
}

.top-header .header-right .search-box input {
    border: none;
    background: none;
    padding: 4px 0;
    font-size: 0.85rem;
    color: var(--gray-700);
    outline: none;
    width: 160px;
    font-family: 'Inter', sans-serif;
}

.top-header .header-right .search-box input::placeholder {
    color: var(--gray-400);
}

.top-header .header-right .header-btn {
    background: none;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    color: var(--gray-500);
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}

.top-header .header-right .header-btn:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

.top-header .header-right .header-btn .dot {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid var(--white);
}

/* ===== PAGE CONTENT ===== */
.page-content {
    padding: 28px 32px;
}

/* ========================================
   COMPONENTS
   ======================================== */

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: 'Inter', sans-serif;
}

.btn i { font-size: 0.9rem; }

.btn-primary {
    background: var(--accent);
    color: var(--white);
}
.btn-primary:hover { background: var(--accent-dark); box-shadow: var(--shadow-md); }

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}
.btn-secondary:hover { background: var(--gray-300); }

.btn-outline {
    background: transparent;
    color: var(--gray-600);
    border: 1.5px solid var(--gray-300);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-bg); }

.btn-success {
    background: var(--success);
    color: var(--white);
}
.btn-success:hover { background: #15803D; }

.btn-danger {
    background: var(--danger);
    color: var(--white);
}
.btn-danger:hover { background: #B91C1C; }

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-lg { padding: 12px 28px; font-size: 0.95rem; }
.btn-block { width: 100%; display: flex; }

/* ===== CARDS ===== */
.card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px 28px;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.card:hover { box-shadow: var(--shadow-md); }

/* ===== STATS ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--white);
    padding: 20px 24px;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--gray-300);
}

.stat-card .stat-icon {
    font-size: 1.4rem;
    color: var(--accent);
    margin-bottom: 4px;
}

.stat-card .stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

.stat-card .stat-label {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-top: 2px;
}

.stat-card .stat-change {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 8px;
    padding: 2px 10px;
    border-radius: 12px;
}

.stat-card .stat-change.up { color: var(--success); background: var(--success-bg); }
.stat-card .stat-change.down { color: var(--danger); background: var(--danger-bg); }

/* ===== COURSE GRID ===== */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 16px;
}

.course-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
}

.course-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--gray-300);
}

.course-card .course-top {
    padding: 20px 20px 0;
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.course-card .course-icon {
    font-size: 1.6rem;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    color: var(--accent);
}

.course-card .course-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
}

.course-card .course-body {
    padding: 12px 20px 16px;
}

.course-card .course-meta {
    color: var(--gray-500);
    font-size: 0.85rem;
}

.course-card .course-meta i {
    margin-right: 4px;
    width: 16px;
}

.course-card .course-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    border-top: 1px solid var(--gray-200);
    font-size: 0.8rem;
    color: var(--gray-500);
}

.course-card .course-stats .stat-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.course-card .course-stats .stat-item i {
    font-size: 0.75rem;
}

.course-card .course-stats .stat-item .count {
    font-weight: 600;
    color: var(--gray-700);
}

.course-card .course-footer {
    padding: 0 20px 20px;
}

.course-card .badge-completed {
    background: var(--success-bg);
    color: var(--success);
    font-size: 0.65rem;
    padding: 1px 10px;
    border-radius: 12px;
    font-weight: 600;
}

.course-card .badge-progress {
    background: var(--accent-bg);
    color: var(--accent);
    font-size: 0.65rem;
    padding: 1px 10px;
    border-radius: 12px;
    font-weight: 600;
}

/* ===== TABLE ===== */
.table-wrap {
    overflow-x: auto;
    margin-top: 4px;
}

.table-wrap table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table-wrap table thead th {
    text-align: left;
    padding: 12px 16px;
    font-weight: 600;
    color: var(--gray-500);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--gray-200);
}

.table-wrap table tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
}

.table-wrap table tbody tr:hover {
    background: var(--gray-50);
}

/* ========================================
   LOGIN PAGE
   ======================================== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-50);
    padding: 24px;
}

.login-container {
    width: 100%;
    max-width: 400px;
    animation: fadeIn 0.5s ease;
}

.login-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-xl);
}

.login-card .brand {
    text-align: center;
    margin-bottom: 32px;
}

.login-card .brand .logo-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    border-radius: 14px;
    color: var(--white);
    margin: 0 auto 10px;
}

.login-card .brand h1 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--gray-900);
}

.login-card .brand .brand-sub {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-top: 2px;
}

.login-card .brand .brand-line {
    width: 40px;
    height: 3px;
    background: var(--accent);
    margin: 8px auto 0;
    border-radius: 2px;
}

.login-card .form-group {
    margin-bottom: 18px;
}

.login-card .form-group label {
    display: block;
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--gray-700);
    margin-bottom: 4px;
}

.login-card .input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.login-card .input-wrap .icon {
    position: absolute;
    left: 14px;
    color: var(--gray-400);
    font-size: 0.95rem;
    width: 18px;
    text-align: center;
}

.login-card .input-wrap input {
    width: 100%;
    padding: 11px 14px 11px 44px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: var(--transition);
    background: var(--white);
    color: var(--gray-800);
    font-family: 'Inter', sans-serif;
}

.login-card .input-wrap input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
}

.login-card .input-wrap .password-toggle {
    position: absolute;
    right: 14px;
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    font-size: 0.9rem;
    padding: 4px;
}

.login-card .form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 16px 0 22px;
}

.login-card .form-options .checkbox-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.login-card .form-options .checkbox-wrap input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    cursor: pointer;
}

.login-card .form-options .checkbox-wrap label {
    font-size: 0.85rem;
    color: var(--gray-600);
    cursor: pointer;
}

.login-card .form-options .forgot-link {
    font-size: 0.85rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

.login-card .form-options .forgot-link:hover {
    text-decoration: underline;
}

.login-card .btn-login { width: 100%; padding: 12px; }

.login-card .divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0 16px;
    color: var(--gray-400);
    font-size: 0.8rem;
}

.login-card .divider::before,
.login-card .divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

.login-card .demo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.login-card .demo-btn {
    padding: 8px 12px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--white);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.75rem;
    text-align: center;
    font-family: 'Inter', sans-serif;
}

.login-card .demo-btn:hover {
    border-color: var(--accent);
    background: var(--accent-bg);
}

.login-card .demo-btn .demo-role {
    font-weight: 600;
    color: var(--accent);
    font-size: 0.8rem;
}

.login-card .demo-btn .demo-cred {
    color: var(--gray-400);
    font-size: 0.65rem;
    display: block;
    margin-top: 1px;
}

.login-card .footer-text {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-200);
    font-size: 0.75rem;
    color: var(--gray-400);
}

.login-card .footer-text .brand-name {
    font-weight: 600;
    color: var(--gray-700);
}

/* ========================================
   TOAST
   ======================================== */
.toast-container {
    position: fixed;
    top: 80px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 380px;
}

.toast {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    color: var(--white);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: fadeIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
}

.toast i { font-size: 1.1rem; }

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-warning { background: var(--warning); color: var(--gray-900); }
.toast-info { background: var(--accent); }

.toast .toast-close {
    margin-left: auto;
    background: none;
    border: none;
    color: inherit;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0.7;
}

.toast .toast-close:hover { opacity: 1; }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .top-header .header-left .menu-toggle {
        display: block;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .top-header .header-right .search-box input {
        width: 120px;
    }
}

@media (max-width: 768px) {
    .page-content { padding: 20px 16px; }
    .top-header { padding: 0 16px; }
    .top-header .header-right .search-box { display: none; }
    
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .course-grid { grid-template-columns: 1fr; }
    
    .login-card { padding: 28px 20px; }
    .login-card .demo-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
}