/* ==================== MODERN LAYOUT CSS (Udemy Style) ==================== */
/* This CSS overrides Bootstrap and provides modern styling */

:root {
    --primary-purple: #7c3aed;
    --primary-purple-dark: #6d28d9;
    --primary-purple-light: #a855f7;
    --text-primary: #1c1d1f;
    --text-secondary: #6a6f73;
    --text-muted: #9da3a7;
    --border-color: #d1d7dc;
    --bg-primary: #ffffff;
    --bg-secondary: #f7f9fa;
    --bg-tertiary: #2d2f31;
    --success-green: #13ce66;
    --error-red: #ec5252;
    --warning-yellow: #ffc107;
    --shadow-sm: 0 2px 4px rgba(0,0,0,.08);
    --shadow-md: 0 4px 8px rgba(0,0,0,.12);
    --shadow-lg: 0 8px 16px rgba(0,0,0,.16);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif !important;
    color: var(--text-primary) !important;
    background: var(--bg-secondary) !important;
    line-height: 1.6 !important;
}

/* Override Bootstrap Navbar */
.navbar {
    background: var(--bg-primary) !important;
    border-bottom: 1px solid var(--border-color) !important;
    box-shadow: var(--shadow-sm) !important;
    padding: 0 !important;
}

.navbar-brand {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    text-decoration: none !important;
    color: var(--primary-purple) !important;
    font-size: 24px !important;
    font-weight: 700 !important;
    padding: 16px 0 !important;
}

.navbar-brand:hover {
    opacity: 0.8;
    color: var(--primary-purple) !important;
}

.navbar-nav {
    gap: 4px !important;
}

.nav-link {
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
    padding: 10px 16px !important;
    color: var(--text-primary) !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    border-radius: 6px !important;
    transition: all 0.2s ease !important;
    text-decoration: none !important;
}

.nav-link:hover {
    background: var(--bg-secondary) !important;
    color: var(--primary-purple) !important;
}

.nav-link.active {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.85), rgba(168, 85, 247, 0.75)) !important;
    color: white !important;
    border-color: rgba(124, 58, 237, 0.4) !important;
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4) !important;
}

.nav-link i {
    font-size: 16px;
}

.nav-link.active i {
    color: white !important;
}

/* Override Bootstrap Dropdown */
.dropdown-menu {
    border: 1px solid var(--border-color) !important;
    border-radius: 8px !important;
    box-shadow: var(--shadow-lg) !important;
    padding: 8px !important;
    margin-top: 8px !important;
}

.dropdown-item {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    padding: 12px 16px !important;
    color: var(--text-primary) !important;
    font-size: 14px !important;
    border-radius: 6px !important;
    transition: all 0.2s ease !important;
}

.dropdown-item:hover {
    background: var(--bg-secondary) !important;
    color: var(--primary-purple) !important;
}

.dropdown-item i {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

/* Override Bootstrap Container */
.container,
.container-fluid {
    max-width: 1340px !important;
    margin: 0 auto !important;
    padding: 0 24px !important;
}

.container-fluid {
    max-width: 100% !important;
}

/* ==================== MODERN NAVIGATION ==================== */

.modern-navbar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.modern-nav-container {
    max-width: 1340px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

/* Logo */
.modern-nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--primary-purple);
    font-size: 24px;
    font-weight: 700;
    transition: opacity 0.2s ease;
}

.modern-nav-logo:hover {
    opacity: 0.8;
}

.modern-nav-logo i {
    font-size: 28px;
}

/* Navigation Links */
.modern-nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    margin: 0;
}

.modern-nav-links li {
    margin: 0;
}

.modern-nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.modern-nav-link:hover {
    background: var(--bg-secondary);
    color: var(--primary-purple);
}

.modern-nav-link.active {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.85), rgba(168, 85, 247, 0.75));
    color: white;
    border-color: rgba(124, 58, 237, 0.4);
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
}

.modern-nav-link i {
    font-size: 16px;
}

.modern-nav-link.active i {
    color: white;
}

/* Dropdown */
.modern-nav-dropdown {
    position: relative;
}

.modern-nav-dropdown:hover .modern-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.modern-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    padding: 8px;
}

.modern-dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.modern-dropdown-item:hover {
    background: var(--bg-secondary);
    color: var(--primary-purple);
}

.modern-dropdown-item i {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

/* Right Side Actions */
.modern-nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.modern-notification-btn {
    position: relative;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    border-radius: 50%;
    transition: all 0.2s ease;
}

.modern-notification-btn:hover {
    background: var(--bg-secondary);
    color: var(--primary-purple);
}

.modern-notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    background: var(--error-red);
    color: var(--bg-primary);
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* User Menu */
.modern-user-menu {
    position: relative;
}

.modern-user-trigger {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 12px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.modern-user-trigger:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--text-secondary);
}

.modern-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-purple-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    font-weight: 700;
    font-size: 14px;
}

.modern-user-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.modern-user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

/* Auth Buttons */
.modern-auth-btns {
    display: flex;
    align-items: center;
    gap: 12px;
}

.modern-btn {
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.modern-btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.modern-btn-outline:hover {
    background: var(--bg-secondary);
    border-color: var(--text-secondary);
}

.modern-btn-primary {
    background: var(--primary-purple);
    color: var(--bg-primary);
}

.modern-btn-primary:hover {
    background: var(--primary-purple-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Mobile Menu Toggle */
.modern-mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
}

/* ==================== MODERN FOOTER ==================== */

.modern-footer {
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: 48px 0 24px;
    margin-top: 80px;
}

.modern-footer-container {
    max-width: 1340px;
    margin: 0 auto;
    padding: 0 24px;
}

.modern-footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.modern-footer-section h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--bg-primary);
}

.modern-footer-links {
    list-style: none;
    padding: 0;
}

.modern-footer-links li {
    margin-bottom: 12px;
}

.modern-footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.modern-footer-link:hover {
    color: var(--bg-primary);
}

.modern-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.modern-footer-copyright {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.modern-footer-social {
    display: flex;
    gap: 16px;
}

.modern-social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    text-decoration: none;
    transition: all 0.2s ease;
}

.modern-social-link:hover {
    background: var(--primary-purple);
    transform: translateY(-2px);
}

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

@media (max-width: 992px) {
    .modern-nav-links {
        display: none;
    }
    
    .modern-mobile-toggle {
        display: block;
    }
    
    .modern-nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        border-top: 1px solid var(--border-color);
        padding: 16px;
        box-shadow: var(--shadow-lg);
    }
    
    .modern-nav-links.mobile-open li {
        width: 100%;
    }
    
    .modern-nav-link {
        width: 100%;
        justify-content: flex-start;
    }
}

@media (max-width: 768px) {
    .modern-nav-container {
        height: 64px;
    }
    
    .modern-user-name {
        display: none;
    }
    
    .modern-footer-grid {
        grid-template-columns: 1fr;
    }
    
    .modern-footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ==================== PAGE CONTENT ==================== */

.modern-page-container {
    max-width: 1340px;
    margin: 0 auto;
    padding: 40px 24px;
}

.modern-page-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.modern-page-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* ==================== DARK MODE SUPPORT ==================== */

[data-theme="dark"] {
    --text-primary: #e5e7eb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border-color: #374151;
    --bg-primary: #1f2937;
    --bg-secondary: #111827;
    --bg-tertiary: #0f172a;
}

[data-theme="dark"] .modern-navbar {
    background: var(--bg-primary);
}

[data-theme="dark"] .modern-footer {
    background: var(--bg-tertiary);
}