/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #2a2a2a;
    --accent-color: #d4af37;
    --accent-hover: #b8860b;
    --text-color: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --border-color: #333333;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-hover: rgba(255, 255, 255, 0.08);
    --gradient-primary: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    --gradient-accent: linear-gradient(135deg, #d4af37 0%, #b8860b 100%);
    --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 15px 35px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --border-radius-sm: 8px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--primary-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles - Fixed Navbar */
.header {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.logo-icon {
    width: 45px;
    height: 45px;
    object-fit: contain;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.logo-icon:hover {
    transform: scale(1.05);
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent-color);
    letter-spacing: 0.5px;
    transition: var(--transition);
}

.logo-text:hover {
    color: var(--accent-hover);
}

.nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius-sm);
    position: relative;
    white-space: nowrap;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
    border-radius: 1px;
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 80%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-color);
    background: rgba(212, 175, 55, 0.08);
    transform: translateY(-1px);
}

.nav-link.active {
    font-weight: 600;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--accent-color);
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.user-role {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Hero Section - Full Screen */
.hero-section {
    min-height: 100vh;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-section::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--secondary-color) 0%, transparent 70%);
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
    z-index: 1;
    top: 20%;
    right: 10%;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-20px) scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: 1.7rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 2rem;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-stats .stat {
    text-align: center;
}

.hero-stats .stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.hero-stats .stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}



/* Main Content */
.main-content {
    background: var(--primary-color);
}

/* Section Styles */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
}

/* Courses Section */
.courses-section {
    padding: 5rem 0;
    background: var(--primary-color);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.filters {
    display: flex;
    gap: 0.5rem;
}

.filter-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--text-color);
}

/* Modern Courses Grid */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    padding: 3rem 0;
    max-width: 1400px;
    margin: 0 auto;
}

.course-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    backdrop-filter: blur(10px);
    position: relative;
    transform: translateY(0);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.2),
        0 0 0 1px rgba(212, 175, 55, 0.3),
        0 0 30px rgba(212, 175, 55, 0.1);
    border-color: var(--accent-color);
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.course-card:hover::before {
    transform: scaleX(1);
}

/* Course Badges */
.course-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(212, 175, 55, 0.9);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
    z-index: 10;
}

.course-badge.completed {
    background: rgba(76, 175, 80, 0.9);
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.course-badge.new {
    background: rgba(156, 39, 176, 0.9);
    box-shadow: 0 4px 15px rgba(156, 39, 176, 0.3);
}

.badge-text {
    font-size: 0.75rem;
    font-weight: 700;
}

/* Enhanced Course Card Styles */
.course-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease, filter 0.4s ease;
    filter: grayscale(100%);
}

.course-card:hover .course-image img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

.course-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.course-card:hover .course-overlay {
    opacity: 1;
}

.play-btn {
    background: var(--accent-color);
    color: var(--text-color);
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.play-btn:hover {
    background: var(--accent-hover);
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

/* Responsive Design for Modern Grid */
@media (max-width: 1200px) {
    .courses-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 2.5rem;
        padding: 2.5rem 0;
    }
}

@media (max-width: 768px) {
    .courses-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 2rem;
        padding: 2rem 0;
    }
    
    .course-card {
        margin: 0 auto;
        max-width: 400px;
    }
    
    .course-content {
        padding: 1.25rem;
    }
    
    .course-title {
        font-size: 1.2rem;
    }
    
    .course-meta {
        gap: 1rem;
        margin-bottom: 1.25rem;
    }
    
    .course-badge {
        top: 0.75rem;
        right: 0.75rem;
        padding: 0.4rem 0.8rem;
        font-size: 0.7rem;
    }
}

@media (max-width: 480px) {
    .courses-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1.5rem 0;
    }
    
    .course-card {
        max-width: 100%;
    }
    
    .course-content {
        padding: 1rem;
    }
    
    .course-title {
        font-size: 1.1rem;
    }
    
    .course-description {
        font-size: 0.85rem;
    }
    
    .course-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .course-btn {
        padding: 0.875rem 1.25rem;
        font-size: 0.85rem;
    }
}

.course-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-color);
    background: var(--card-hover);
}

.course-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition), filter 0.4s ease;
    filter: grayscale(100%);
}

.course-card:hover .course-image img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

.course-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.course-card:hover .course-overlay {
    opacity: 1;
}

.play-btn {
    background: var(--accent-color);
    color: var(--text-color);
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.play-btn:hover {
    background: var(--accent-hover);
    transform: scale(1.1);
}

.course-content {
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--card-bg) 0%, rgba(255, 255, 255, 0.02) 100%);
}

.course-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.tag {
    background: rgba(212, 175, 55, 0.15);
    color: var(--accent-color);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid rgba(212, 175, 55, 0.2);
    transition: all 0.3s ease;
}

.tag:hover {
    background: rgba(212, 175, 55, 0.25);
    transform: translateY(-1px);
}

.course-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-color);
    line-height: 1.3;
    transition: color 0.3s ease;
}

.course-card:hover .course-title {
    color: var(--accent-color);
}

.course-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    opacity: 0.9;
}

.course-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.course-meta span::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 50%;
    opacity: 0.6;
}

.course-progress {
    margin-bottom: 1.5rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.75rem;
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.1) 50%, transparent 100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    border-radius: 4px;
    transition: width 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    z-index: 1;
}

.progress-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-align: center;
}

.course-btn {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    color: var(--text-color);
    border: none;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    width: 100%;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.course-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 ease;
}

.course-btn:hover::before {
    left: 100%;
}

.course-btn:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 8px 25px rgba(212, 175, 55, 0.3),
        0 0 0 1px rgba(212, 175, 55, 0.2);
}

.course-btn:active {
    transform: translateY(0);
}

/* Progress Section */
.progress-section {
    padding: 5rem 0;
    background: var(--secondary-color);
}

.progress-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.progress-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.progress-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-color);
}

.progress-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.progress-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.progress-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
}

/* Certificates Section */
.certificates-section {
    padding: 5rem 0;
    background: var(--primary-color);
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.certificate-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.certificate-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-color);
}

.certificate-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.certificate-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.certificate-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.certificate-score {
    margin-bottom: 1.5rem;
}

.score {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.25rem;
}

.score-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.download-btn {
    background: var(--gradient-accent);
    color: var(--text-color);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.9);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .hero-login-btn {
        padding: 1rem 2rem;
        font-size: 1rem;
        letter-spacing: 1px;
    }
    
    .hero-login-btn .login-icon {
        width: 20px;
        height: 20px;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem 0;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .filters {
        width: 100%;
        justify-content: center;
    }
    
    .courses-carousel-container {
        padding: 1rem 0;
    }
    
    .courses-carousel {
        gap: 1rem;
    }
    
    .progress-overview {
        grid-template-columns: 1fr;
    }
    
    .certificates-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-login-btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
        letter-spacing: 0.5px;
    }
    
    .hero-login-btn .login-icon {
        width: 18px;
        height: 18px;
    }
    
    .hero-login-text {
        font-size: 0.9rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .user-menu {
        align-self: center;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary-color);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-hover);
}

/* Animation Classes */
.animate-in {
    animation: slideInUp 0.6s ease-out forwards;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading Animation */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Hero Login Section */
.hero-login-section {
    text-align: center;
    margin: 3rem 0;
    animation: fadeInUp 1s ease-out 0.5s both;
}

.hero-login-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--gradient-accent);
    color: var(--text-color);
    border: none;
    padding: 1.25rem 2.5rem;
    border-radius: var(--border-radius-sm);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 2px;
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

.hero-login-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;
}

.hero-login-btn:hover::before {
    left: 100%;
}

.hero-login-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

.hero-login-btn:active {
    transform: translateY(-1px);
}

.hero-login-btn .login-icon {
    width: 24px;
    height: 24px;
    transition: transform 0.3s ease;
}

.hero-login-btn:hover .login-icon {
    transform: translateX(3px);
}

.hero-login-text {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 400;
    opacity: 0.9;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.login-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gradient-accent);
    color: var(--text-color);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.login-icon {
    width: 18px;
    height: 18px;
}

/* Login Modal */
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-modal.active {
    display: flex;
}

.login-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.login-container {
    position: relative;
    background: var(--primary-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    max-width: 450px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideInUp 0.3s ease-out;
    box-shadow: var(--shadow-heavy);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.login-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.login-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.login-logo .logo-icon {
    width: 40px;
    height: 40px;
}

.login-logo h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: var(--card-bg);
    color: var(--text-color);
}

.close-btn svg {
    width: 20px;
    height: 20px;
}

.login-content {
    padding: 2rem;
}

.login-tabs {
    display: flex;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.tab-btn.active {
    color: var(--accent-color);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-color);
    border-radius: 1px;
}

.tab-btn:hover {
    color: var(--text-color);
}

/* Forms */
.login-form,
.register-form {
    display: none;
}

.login-form.active,
.register-form.active {
    display: block;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.9rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    z-index: 2;
}

.form-group input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-color);
    font-size: 1rem;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.toggle-password {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: var(--transition);
}

.toggle-password:hover {
    color: var(--text-color);
    background: var(--card-bg);
}

.eye-icon {
    width: 18px;
    height: 18px;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.checkbox-wrapper input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    position: relative;
    transition: var(--transition);
}

.checkbox-wrapper input[type="checkbox"]:checked + .checkmark {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.checkbox-wrapper input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-color);
    font-size: 12px;
    font-weight: bold;
}

.forgot-password,
.terms-link,
.support-link {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.forgot-password:hover,
.terms-link:hover,
.support-link:hover {
    text-decoration: underline;
}

.submit-btn {
    width: 100%;
    background: var(--gradient-accent);
    color: var(--text-color);
    border: none;
    padding: 1rem;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-loader {
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid var(--text-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.login-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.login-footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive Design for Login Modal */
@media (max-width: 768px) {
    .login-container {
        margin: 1rem;
        max-height: calc(100vh - 2rem);
    }
    
    .login-header,
    .login-content,
    .login-footer {
        padding: 1.5rem;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        gap: 0.5rem;
    }
    
    .login-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .login-icon {
        width: 16px;
        height: 16px;
    }
}

@media (max-width: 480px) {
    .login-container {
        margin: 0.5rem;
        max-height: calc(100vh - 1rem);
    }
    
    .login-header,
    .login-content,
    .login-footer {
        padding: 1rem;
    }
    
    .login-logo h2 {
        font-size: 1.2rem;
    }
    
    .tab-btn {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
}

/* Additional Responsive Navbar Styles */
@media (max-width: 1024px) {
    .nav-list {
        gap: 1.5rem;
    }
    
    .nav-link {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 0.75rem 0;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
        padding: 0 15px;
    }
    
    .logo {
        order: 1;
    }
    
    .nav {
        order: 2;
        width: 100%;
    }
    
    .nav-list {
        gap: 1rem;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
    
    .header-actions {
        order: 3;
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 0 10px;
    }
    
    .nav-list {
        gap: 0.5rem;
    }
    
    .nav-link {
        padding: 0.4rem 0.6rem;
        font-size: 0.8rem;
    }
    
    .logo-text {
        font-size: 1.3rem;
    }
    
    .logo-icon {
        width: 35px;
        height: 35px;
    }
}