:root {
            --primary: #3a86ff;
            --primary-light: rgba(58, 134, 255, 0.1);
            --secondary: #2667cc;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --accent: #8338ec;
            --accent-light: rgba(131, 56, 236, 0.1);
            --text-dark: #333;
            --text-light: #666;
            --border: #e0e0e0;
            --shadow: 0 2px 10px rgba(0,0,0,0.1);
            --shadow-hover: 0 5px 15px rgba(0,0,0,0.15);
            --card-bg: #ffffff;
            --header-bg: #ffffff;
            --radius: 12px;
            --transition: all 0.3s ease;
            --header-height: 70px;
        }
        
        .dark-theme {
            --light: #121212;
            --text-dark: #e0e0e0;
            --text-light: #b0b0b0;
            --border: #333;
            --shadow: 0 2px 10px rgba(0,0,0,0.3);
            --shadow-hover: 0 5px 15px rgba(0,0,0,0.4);
            --card-bg: #1e1e1e;
            --header-bg: #1e1e1e;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            background-color: var(--light);
            color: var(--text-dark);
            line-height: 1.6;
            transition: var(--transition);
            padding-top: var(--header-height);
            overflow-x: hidden;
        }
        
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* Header - Mobile First */
        header {
            background: var(--header-bg);
            box-shadow: var(--shadow);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            transition: var(--transition);
            padding: 0;
            height: var(--header-height);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: var(--header-height);
            position: relative;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            z-index: 1001;
            flex-shrink: 0;
        }
        
        .logo img {
            height: 35px;
            transition: var(--transition);
        }
        
        .logo-text {
            font-weight: 700;
            color: var(--dark);
            font-size: clamp(1rem, 4vw, 1.2rem);
            transition: var(--transition);
            white-space: nowrap;
        }
        
        .dark-theme .logo-text {
            color: #e0e0e0;
        }
        
        .logo-text span {
            color: var(--primary);
        }
        
        /* NAVIGATION FIX: Show navigation by default (for desktop) */
        nav {
            display: flex;
            gap: 10px;
            transition: var(--transition);
        }
        
        nav a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            padding: 8px 15px;
            border-radius: var(--radius);
            transition: var(--transition);
            white-space: nowrap;
            position: relative;
            overflow: hidden;
        }
        
        .dark-theme nav a {
            color: #e0e0e0;
        }
        
        nav a:before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }
        
        nav a:hover, nav a.active {
            color: var(--primary);
            background: var(--primary-light);
        }
        
        nav a:hover:before, nav a.active:before {
            width: 100%;
        }
        
        .header-controls {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        
        /* SEARCH FIX: Improved search functionality */
        .search-compact {
            position: relative;
            width: 40px;
            height: 40px;
            transition: width 0.3s ease;
        }
        
        .search-compact.active {
            width: 180px;
        }
        
        .search-compact input {
            width: 100%;
            height: 100%;
            padding: 10px 15px 10px 40px;
            border: 1px solid var(--border);
            border-radius: 30px;
            background: var(--light);
            color: var(--text-dark);
            font-size: 0.9rem;
            transition: var(--transition);
            opacity: 0;
            pointer-events: none;
            position: absolute;
            top: 0;
            left: 0;
        }
        
        .search-compact.active input {
            opacity: 1;
            pointer-events: all;
        }
        
        .search-compact input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.2);
        }
        
        .search-compact i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            transition: var(--transition);
            z-index: 1;
            cursor: pointer;
        }
        
        .search-compact.active i {
            left: 15px;
            color: var(--primary);
        }
        
        .theme-toggle {
            background: none;
            border: none;
            color: var(--text-dark);
            cursor: pointer;
            font-size: 1.2rem;
            padding: 8px;
            border-radius: 50%;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
        }
        
        .theme-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: rotate(15deg);
        }
        
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--text-dark);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius);
            transition: var(--transition);
            z-index: 1001;
        }
        
        .dark-theme .mobile-menu-btn {
            color: #e0e0e0;
        }
        
        .mobile-menu-btn:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        
        /* Mobile Navigation Overlay */
        .mobile-nav-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }
        
        .mobile-nav-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        
        .mobile-nav {
            position: fixed;
            top: 0;
            right: -100%;
            width: 85%;
            max-width: 320px;
            height: 100%;
            background: var(--card-bg);
            z-index: 1000;
            transition: right 0.4s ease;
            padding: 80px 20px 20px;
            overflow-y: auto;
            box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        }
        
        .mobile-nav.active {
            right: 0;
        }
        
        .mobile-nav a {
            display: block;
            padding: 15px;
            text-decoration: none;
            color: var(--text-dark);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
            font-weight: 500;
        }
        
        .mobile-nav a:hover, .mobile-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            padding-left: 25px;
        }
        
        /* Hero Section with Animation */
        .resources-hero {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white;
            padding: 60px 0 40px;
            text-align: center;
            border-radius: 0 0 30px 30px;
            margin-bottom: 30px;
            position: relative;
            overflow: hidden;
        }
        
        .resources-hero:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.1)"/></svg>');
            background-size: cover;
        }
        
        .resources-hero h1 {
            font-size: clamp(1.8rem, 5vw, 2.5rem);
            margin-bottom: 15px;
            position: relative;
            animation: fadeInUp 0.8s ease;
        }
        
        .resources-hero p {
            font-size: clamp(1rem, 3vw, 1.1rem);
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.9;
            position: relative;
            animation: fadeInUp 0.8s ease 0.2s both;
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* Main Content */
        .resources-main {
            padding: 20px 0 40px;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 30px;
            color: var(--dark);
            font-size: clamp(1.5rem, 4vw, 2rem);
            position: relative;
            padding-bottom: 15px;
        }
        
        .dark-theme .section-title {
            color: #e0e0e0;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
        }
        
        /* Notes Section - Improved List Style */
        .notes-list {
            background: var(--card-bg);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            margin-bottom: 40px;
            transition: var(--transition);
        }
        
        .note-item {
            display: flex;
            align-items: center;
            padding: 20px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .note-item:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 4px;
            background: var(--primary);
            transform: scaleY(0);
            transition: var(--transition);
        }
        
        .note-item:last-child {
            border-bottom: none;
        }
        
        .note-item:hover {
            background: var(--primary-light);
            transform: translateX(5px);
        }
        
        .note-item:hover:before {
            transform: scaleY(1);
        }
        
        .dark-theme .note-item:hover {
            background: rgba(58, 134, 255, 0.1);
        }
        
        .note-icon {
            font-size: 1.8rem;
            margin-right: 20px;
            color: var(--primary);
            min-width: 40px;
            transition: var(--transition);
        }
        
        .note-item:hover .note-icon {
            transform: scale(1.1);
        }
        
        .note-content {
            flex: 1;
        }
        
        .note-content h3 {
            margin-bottom: 8px;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        
        .note-meta {
            color: var(--text-light);
            font-size: 0.9rem;
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }
        
        .note-actions {
            display: flex;
            gap: 10px;
        }
        
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--primary);
            color: white;
            text-decoration: none;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .btn:after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 5px;
            height: 5px;
            background: rgba(255, 255, 255, 0.5);
            opacity: 0;
            border-radius: 100%;
            transform: scale(1, 1) translate(-50%);
            transform-origin: 50% 50%;
        }
        
        .btn:hover:after {
            animation: ripple 1s ease-out;
        }
        
        @keyframes ripple {
            0% {
                transform: scale(0, 0);
                opacity: 0.5;
            }
            100% {
                transform: scale(20, 20);
                opacity: 0;
            }
        }
        
        .btn:hover {
            background: var(--secondary);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(58, 134, 255, 0.3);
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        
        .btn-outline:hover {
            background: var(--primary);
            color: white;
        }
        
        .btn-youtube {
            background: #ff0000;
        }
        
        .btn-youtube:hover {
            background: #cc0000;
            box-shadow: 0 5px 15px rgba(255, 0, 0, 0.3);
        }
        
        /* Books Section - Improved Grid Style */
        .resources-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
            margin-bottom: 40px;
        }
        
        .resource-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
        }
        
        .resource-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }
        
        .resource-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            background-color: #f0f0f0;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .resource-card:hover .resource-img {
            transform: scale(1.05);
        }
        
        .resource-img:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 40%;
            background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
        }
        
        .dark-theme .resource-img {
            background-color: #2a2a2a;
        }
        
        .resource-content {
            padding: 20px;
        }
        
        .resource-content h3 {
            color: var(--dark);
            margin-bottom: 10px;
            font-size: 1.2rem;
            line-height: 1.4;
            transition: var(--transition);
        }
        
        .dark-theme .resource-content h3 {
            color: #e0e0e0;
        }
        
        .resource-meta {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }
        
        .resource-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }
        
        .tag {
            background: var(--primary-light);
            color: var(--primary);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            transition: var(--transition);
        }
        
        .resource-card:hover .tag {
            background: var(--accent-light);
            color: var(--accent);
        }
        
        /* Links Section */
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }
        
        .link-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 15px;
            position: relative;
            overflow: hidden;
        }
        
        .link-card:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--accent);
            transform: scaleX(0);
            transition: var(--transition);
        }
        
        .link-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        
        .link-card:hover:before {
            transform: scaleX(1);
        }
        
        .link-icon {
            font-size: 2rem;
            color: var(--primary);
            min-width: 40px;
            transition: var(--transition);
        }
        
        .link-card:hover .link-icon {
            transform: scale(1.1) rotate(5deg);
            color: var(--accent);
        }
        
        .link-content {
            flex: 1;
        }
        
        .link-content h3 {
            margin-bottom: 8px;
            font-size: 1.1rem;
        }
        
        .link-content p {
            color: var(--text-light);
            font-size: 0.9rem;
        }
        
        /* Modal */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            z-index: 2000;
            align-items: center;
            justify-content: center;
            padding: 20px;
            animation: fadeIn 0.3s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        .modal-content {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 25px;
            max-width: 500px;
            width: 100%;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            position: relative;
            animation: modalFade 0.3s;
            max-height: 90vh;
            overflow-y: auto;
        }
        
        @keyframes modalFade {
            from { opacity: 0; transform: translateY(-20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .modal-title {
            font-size: 1.3rem;
            color: var(--primary);
        }
        
        .close-modal {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-light);
            cursor: pointer;
            transition: var(--transition);
            padding: 5px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 35px;
            height: 35px;
        }
        
        .close-modal:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        
        .modal-body {
            margin-bottom: 25px;
        }
        
        .modal-body p {
            margin-bottom: 15px;
            line-height: 1.6;
        }
        
        .modal-steps {
            background: var(--primary-light);
            border-radius: 10px;
            padding: 15px;
            margin: 20px 0;
        }
        
        .modal-steps ol {
            padding-left: 20px;
        }
        
        .modal-steps li {
            margin-bottom: 10px;
        }
        
        .modal-actions {
            display: flex;
            gap: 15px;
            justify-content: center;
        }
        
        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: 40px 0 0;
            margin-top: 50px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        
        .footer-about h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
        }
        
        .footer-about p {
            color: #bbb;
            margin-bottom: 15px;
        }
        
        .footer-links h3 {
            font-size: 1.1rem;
            margin-bottom: 15px;
        }
        
        .footer-links ul {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #bbb;
            text-decoration: none;
            transition: var(--transition);
            position: relative;
            padding-left: 0;
        }
        
        .footer-links a:before {
            content: '›';
            position: absolute;
            left: -15px;
            transition: var(--transition);
            opacity: 0;
        }
        
        .footer-links a:hover {
            color: white;
            padding-left: 15px;
        }
        
        .footer-links a:hover:before {
            opacity: 1;
            left: 0;
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 20px 0;
            text-align: center;
            color: #bbb;
            font-size: 0.9rem;
        }
        
        /* Responsive Design - Mobile First */
        @media (max-width: 768px) {
            /* NAVIGATION FIX: Hide desktop nav on mobile */
            nav {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .search-compact {
                width: 40px;
            }
            
            .search-compact.active {
                width: 150px;
            }
            
            .resources-hero {
                padding: 50px 0 30px;
                border-radius: 0 0 20px 20px;
            }
            
            .note-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
                padding: 15px;
            }
            
            .note-actions {
                align-self: stretch;
                justify-content: flex-start;
            }
            
            .note-actions .btn {
                width: 100%;
            }
            
            .resources-grid {
                grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
                gap: 20px;
            }
            
            .resource-img {
                height: 160px;
            }
            
            .resource-content {
                padding: 15px;
            }
            
            .resource-content h3 {
                font-size: 1.1rem;
            }
            
            .links-grid {
                grid-template-columns: 1fr;
            }
            
            .link-card {
                padding: 15px;
            }
            
            .modal-content {
                padding: 20px;
            }
            
            .modal-actions {
                flex-direction: column;
            }
            
            .modal-actions .btn {
                width: 100%;
            }
        }
        
        @media (max-width: 576px) {
            .resources-main {
                padding: 10px 0 30px;
            }
            
            .section-title {
                margin-bottom: 25px;
            }
            
            .note-item {
                padding: 15px;
            }
            
            .resources-grid {
                grid-template-columns: 1fr;
                gap: 15px;
            }
            
            .resource-img {
                height: 150px;
            }
            
            .resource-content {
                padding: 15px;
            }
            
            .resource-content h3 {
                font-size: 1rem;
            }
            
            .resource-meta {
                font-size: 0.85rem;
            }
            
            .header-container {
                padding: 0;
            }
            
            .logo img {
                height: 30px;
            }
            
            .logo-text {
                font-size: 1rem;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 25px;
            }
        }
        
        @media (min-width: 577px) and (max-width: 768px) {
            .resources-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        /* NAVIGATION FIX: Hide mobile nav on desktop */
        @media (min-width: 769px) {
            .mobile-nav-overlay, .mobile-nav {
                display: none;
            }
            
            /* Ensure desktop nav is visible */
            nav {
                display: flex;
            }
        }
        
        /* Loading Animation */
        .loading {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid rgba(255,255,255,.3);
            border-radius: 50%;
            border-top-color: #fff;
            animation: spin 1s ease-in-out infinite;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }