/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--gradient-dark);
    overflow: hidden;
    padding-top: 120px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(26, 41, 66, 0.95) 0%, 
        rgba(44, 74, 107, 0.9) 50%, 
        rgba(26, 41, 66, 0.95) 100%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(90, 228, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 60% 20%, rgba(0, 102, 204, 0.1) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: var(--space-20);
    position: relative;
    z-index: 2;
    padding: 0 var(--space-8);
    max-width: 1400px;
    margin: 0 auto;
}

.hero-content {
    color: var(--white);
    padding-left: var(--space-6);
    max-width: none;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: var(--fw-extrabold);
    line-height: 1.15;
    margin-bottom: var(--space-6);
    letter-spacing: -0.02em;
    overflow: visible;
}

.title-line {
    display: block;
    animation: slideInLeft 1s ease-out forwards;
    opacity: 0;
}

.title-line:nth-child(1) { animation-delay: 0.2s; }
.title-line:nth-child(2) { animation-delay: 0.4s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.25rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
    line-height: 1.5;
    max-width: 600px;
    animation: slideInLeft 1s ease-out 0.8s forwards;
    opacity: 0;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    animation: slideInLeft 1s ease-out 1s forwards;
    opacity: 0;
}

.hero-visual {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    animation: slideInRight 1s ease-out 0.5s forwards;
    opacity: 0;
    padding-right: var(--space-4);
}

.hero-code {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.code-window {
    width: 450px;
    max-width: 100%;
}

.window-header {
    display: flex;
    align-items: center;
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.window-dots {
    display: flex;
    gap: var(--space-2);
}

.window-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.window-dots span:nth-child(1) { background: #ff5f56; }
.window-dots span:nth-child(2) { background: #ffbd2e; }
.window-dots span:nth-child(3) { background: #27ca3f; }

.window-title {
    margin-left: var(--space-4);
    color: var(--white);
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
}

.code-content {
    padding: var(--space-6);
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--white);
    line-height: 1.6;
    min-height: 200px;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(45deg);
    opacity: 0.7;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--gray-50);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.about-text {
    display: grid;
    gap: var(--space-6);
}

.about-card {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    transition: transform var(--transition-base);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.about-card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--space-4);
    font-size: var(--fs-xl);
}

.about-stats {
    display: grid;
    gap: var(--space-6);
}

.stat-item {
    text-align: center;
    padding: var(--space-6);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
}

.stat-number {
    font-size: var(--fs-4xl);
    font-weight: var(--fw-extrabold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--fs-sm);
    color: var(--gray-600);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== SERVICES SECTION ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-8);
}

.service-card {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    font-size: var(--fs-2xl);
    color: var(--white);
    box-shadow: var(--shadow-glow);
}

.service-card h3 {
    font-size: var(--fs-2xl);
    color: var(--gray-900);
    margin-bottom: var(--space-4);
}

.service-card p {
    color: var(--gray-600);
    margin-bottom: var(--space-6);
}

.service-features {
    list-style: none;
    text-align: left;
}

.service-features li {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-3);
    color: var(--gray-700);
    font-size: var(--fs-sm);
}

.service-features li::before {
    content: '✓';
    margin-right: var(--space-3);
    color: var(--primary-cyan);
    font-weight: var(--fw-bold);
}

/* ===== PROJECTS SECTION ===== */
.projects {
    background: var(--gray-50);
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-3) var(--space-6);
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-full);
    font-weight: var(--fw-medium);
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-8);
}

.project-card,
.project-placeholder {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-base);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.project-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 41, 66, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.project-links {
    display: flex;
    gap: var(--space-4);
}

.project-link {
    width: 50px;
    height: 50px;
    background: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.project-link:hover {
    background: var(--gradient-primary);
    color: var(--white);
    transform: scale(1.1);
}

.project-content {
    padding: var(--space-6);
}

.project-category {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--gradient-primary);
    color: var(--white);
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-3);
}

.project-title {
    font-size: var(--fs-xl);
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}

.project-description {
    color: var(--gray-600);
    margin-bottom: var(--space-4);
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.tech-tag {
    padding: var(--space-1) var(--space-3);
    background: var(--gray-100);
    color: var(--gray-700);
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    border-radius: var(--radius-full);
    border: 1px solid var(--gray-200);
}

.project-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    border: 2px dashed var(--gray-300);
}

.placeholder-content {
    text-align: center;
    color: var(--gray-500);
}

.placeholder-content i {
    font-size: var(--fs-4xl);
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.placeholder-content h3 {
    font-size: var(--fs-xl);
    margin-bottom: var(--space-2);
}

/* ===== CONTACT SECTION ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-16);
    align-items: start;
}

.contact-info {
    display: grid;
    gap: var(--space-6);
}

.contact-card {
    background: var(--white);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    text-align: center;
    transition: transform var(--transition-base);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    font-size: var(--fs-xl);
    color: var(--white);
}

.contact-card h3 {
    font-size: var(--fs-lg);
    color: var(--gray-900);
    margin-bottom: var(--space-2);
}

.contact-card p {
    color: var(--gray-600);
    margin-bottom: 0;
}

.contact-form {
    background: var(--white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
}

.form-group {
    margin-bottom: var(--space-6);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: var(--fw-medium);
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: var(--fs-base);
    font-family: var(--font-primary);
    transition: border-color var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-cyan);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-16);
    margin-bottom: var(--space-12);
}

.footer-brand {
    max-width: 350px;
}

.footer-brand-content {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.footer-logo {
    height: 40px;
    width: 40px;
    object-fit: contain;
    flex-shrink: 0;
}

.footer-brand-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.footer-brand-name {
    font-size: var(--fs-xl);
    font-weight: var(--fw-extrabold);
    color: var(--white);
    line-height: 1;
    letter-spacing: 0.1em;
}

.footer-brand-subtitle {
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    color: var(--primary-cyan);
    line-height: 1;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0;
    font-size: var(--fs-sm);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-8);
}

.footer-section h4 {
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
    margin-bottom: var(--space-4);
    color: var(--white);
}

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

.footer-section ul li {
    margin-bottom: var(--space-2);
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.social-links {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: all var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--space-8);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero {
        padding-top: 100px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-12);
        padding: 0 var(--space-6);
    }
    
    .hero-content {
        padding-left: 0;
    }
    
    .hero-visual {
        justify-content: center;
        padding-right: 0;
    }
    
    .code-window {
        width: 400px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
}

@media (max-width: 768px) {
    .hero {
        padding-top: 90px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-filters {
        flex-direction: column;
        align-items: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-8);
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }
}