/* Layout Styles */

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 35, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 15, 35, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-brand::before {
    content: '';
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    display: block;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: var(--space-sm) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: var(--radius-full);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Navigation */
@media (max-width: 1024px) {
    .nav-container {
        padding-left: var(--space-md);
        padding-right: var(--space-md);
    }
    
    .nav-menu {
        gap: var(--space-lg);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 15, 35, 0.95);
        backdrop-filter: blur(20px);
        border-top: 1px solid var(--border);
        flex-direction: column;
        padding: var(--space-xl);
        gap: var(--space-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-link {
        font-size: 1.125rem;
        padding: var(--space-md) 0;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding-left: var(--space-sm);
        padding-right: var(--space-sm);
    }
    
    .nav-brand {
        font-size: 1.125rem;
    }
    
    .nav-brand::before {
        width: 28px;
        height: 28px;
    }
    
    .nav-menu {
        padding: var(--space-lg);
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    animation: float 6s ease-in-out infinite;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 600px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    font-weight: 400;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: var(--space-xl);
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-avatar {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: var(--gradient-primary);
    padding: 8px;
    position: relative;
    animation: float 3s ease-in-out infinite;
}

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

.hero-avatar::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    border: 2px solid var(--primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: pulse 2s infinite;
}

.hero-stats {
    position: absolute;
    top: 20%;
    right: -10%;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
    min-width: 200px;
}

.hero-badge {
    position: absolute;
    bottom: 20%;
    left: -10%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

@media (max-width: 1024px) {
    .hero-content {
        gap: var(--space-2xl);
    }
    
    .hero-avatar {
        width: 350px;
        height: 350px;
    }
    
    .hero-stats {
        right: -5%;
    }
    
    .hero-badge {
        left: -5%;
    }
}

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }
    
    .hero-avatar {
        width: 280px;
        height: 280px;
    }
    
    .hero-stats,
    .hero-badge {
        position: static;
        margin: var(--space-lg) auto;
        max-width: 250px;
    }
    
    .hero-actions {
        justify-content: center;
        gap: var(--space-lg);
    }
    
    .hero-description {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero {
        min-height: 90vh;
        padding: var(--space-xl) 0;
    }
    
    .hero-avatar {
        width: 240px;
        height: 240px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--space-md);
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .hero-stats,
    .hero-badge {
        max-width: 200px;
    }
}

/* Section */
.section {
    padding: var(--space-3xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 1024px) {
    .section {
        padding: var(--space-2xl) 0;
    }
    
    .section-header {
        margin-bottom: var(--space-2xl);
        max-width: 500px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: var(--space-xl) 0;
    }
    
    .section-header {
        margin-bottom: var(--space-xl);
        max-width: 100%;
        padding: 0 var(--space-md);
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .section {
        padding: var(--space-lg) 0;
    }
    
    .section-header {
        margin-bottom: var(--space-lg);
        padding: 0 var(--space-sm);
    }
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: var(--space-3xl) 0 var(--space-xl);
    margin-top: var(--space-3xl);
}

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

.footer-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.footer-bottom p {
    color: var(--text-muted);
    margin: 0;
}

@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* Scroll Progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--bg-secondary);
    z-index: 1001;
}

.scroll-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    width: 0%;
    transition: width 0.1s ease;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-glow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.5);
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: var(--space-lg);
        right: var(--space-lg);
        width: 45px;
        height: 45px;
    }
}