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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #f8fafc;
    --accent-color: #06b6d4;
    --text-color: #334155;
    --text-light: #64748b;
    --text-dark: #0f172a;
    --light-text: #ffffff;
    --dark-bg: #0f172a;
    --light-bg: #ffffff;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
}

h1, h2, h3, h4 {
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-dark);
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    position: relative;
    margin-bottom: 60px;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    margin-bottom: 15px;
    color: var(--text-light);
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.btn {
    display: inline-block;
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    font-size: 0.95rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--light-text);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--light-text);
}

.section-description {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 40px;
    font-size: 1.1rem;
    color: var(--text-light);
}

/* Header */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.burger {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 5px;
    transition: var(--transition);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--light-text);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.1)" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
    color: var(--light-text);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    animation: fadeInUp 1s ease 0.2s both;
    color: var(--accent-color);
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease 0.4s both;
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.experience-stats {
    display: flex;
    gap: 30px;
    margin-top: 30px;
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat p {
    font-size: 0.9rem;
    color: var(--text-light);
}

.skill-categories {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.skill-category h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

/* Portfolio Section */
.portfolio {
    background-color: var(--secondary-color);
    padding: 100px 0;
}

.portfolio .container {
    max-width: 1200px;
}

.portfolio h2 {
    margin-bottom: 20px;
}

.portfolio .section-description {
    margin-bottom: 50px;
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    font-size: 0.9rem;
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.portfolio-item {
    background-color: var(--light-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    opacity: 1;
    transform: translateY(0);
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

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

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-content {
    padding: 25px;
}

.portfolio-category {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.portfolio-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.portfolio-content p {
    margin-bottom: 15px;
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.5;
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.portfolio-tech span {
    background-color: var(--secondary-color);
    color: var(--text-color);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

/* Services Section */
.services {
    padding: 100px 0;
    background-color: var(--light-bg);
}

.services .container {
    max-width: 1200px;
}

.services h2 {
    margin-bottom: 20px;
}

.services .section-description {
    margin-bottom: 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.service-card {
    background-color: var(--light-bg);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    text-align: center;
    position: relative;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.service-card.featured {
    border: 2px solid var(--primary-color);
    position: relative;
}

.service-card.featured::before {
    content: 'Beliebt';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2rem;
    color: var(--light-text);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.service-card > p {
    margin-bottom: 25px;
    color: var(--text-light);
    line-height: 1.6;
}

.service-features {
    text-align: left;
    margin-top: 20px;
}

.service-features li {
    margin-bottom: 12px;
    position: relative;
    padding-left: 25px;
    color: var(--text-light);
    font-size: 0.95rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
    font-size: 1.1rem;
}

/* Pricing Section */
.pricing {
    background-color: var(--secondary-color);
}

.pricing-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.pricing-factors {
    display: grid;
    gap: 20px;
    margin-top: 25px;
}

.factor {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background-color: var(--light-bg);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.factor i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-top: 5px;
}

.factor h4 {
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.factor p {
    font-size: 0.9rem;
    margin: 0;
}

.price-categories {
    display: grid;
    gap: 20px;
}

.price-category {
    background-color: var(--light-bg);
    padding: 25px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.price-category h4 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.price-range {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.price-from {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--success-color);
}

.price-to {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-color);
}

.pricing-cta {
    text-align: center;
    background-color: var(--light-bg);
    padding: 50px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.pricing-cta h3 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.pricing-cta p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--text-light);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.contact-info > p {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.contact-methods {
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    background-color: var(--secondary-color);
    border-radius: 8px;
}

.contact-item i {
    font-size: 1.2rem;
    color: var(--primary-color);
    width: 20px;
}

.contact-item h4 {
    margin-bottom: 5px;
    font-size: 1rem;
}

.contact-item p {
    margin: 0;
    color: var(--text-light);
}

.response-time {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--success-color);
    color: var(--light-text);
    padding: 12px 20px;
    border-radius: 8px;
    font-weight: 500;
}

.response-time i {
    font-size: 1.1rem;
}

.contact-form {
    background-color: var(--light-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--light-bg);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* Footer */
footer {
    background-color: var(--dark-bg);
    color: var(--light-text);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    margin-bottom: 20px;
    color: var(--light-text);
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--text-light);
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--light-text);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 20px;
    text-align: center;
    color: var(--text-light);
}

.footer-bottom a {
    color: var(--text-light);
}

.footer-bottom a:hover {
    color: var(--light-text);
}

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

@keyframes navLinkFade {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Work in Progress Popup */
.wip-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.wip-popup.hidden {
    opacity: 0;
    pointer-events: none;
}

.wip-popup-content {
    background-color: var(--light-bg);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    text-align: center;
    max-width: 500px;
    width: 90%;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.wip-popup:not(.hidden) .wip-popup-content {
    transform: scale(1);
}

.wip-popup-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--warning-color), #ff8c00);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2.5rem;
    color: var(--light-text);
}

.wip-popup h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.wip-popup p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 25px;
    line-height: 1.6;
}

.wip-popup-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.wip-popup .btn {
    padding: 12px 24px;
    font-size: 0.95rem;
}

.wip-popup-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: var(--transition);
}

.wip-popup-close:hover {
    background-color: var(--secondary-color);
    color: var(--text-dark);
}

/* Responsive Styles */
@media screen and (max-width: 1024px) {
    .hero h1 {
        font-size: 3rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .pricing-info {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
}

@media screen and (max-width: 768px) {
    body.nav-active {
        overflow: hidden;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 100%;
        background-color: var(--light-bg);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transform: translateX(100%);
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-links.active {
        transform: translateX(0);
    }
    
    .nav-links li {
        margin: 20px 0;
    }
    
    .burger {
        display: block;
    }
    
    .burger.active .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .burger.active .line2 {
        opacity: 0;
    }
    
    .burger.active .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .experience-stats {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .pricing-factors {
        gap: 15px;
    }
    
    .factor {
        flex-direction: column;
        text-align: center;
    }
    
    .wip-popup-content {
        padding: 30px 20px;
    }
    
    .wip-popup h3 {
        font-size: 1.5rem;
    }
    
    .wip-popup p {
        font-size: 1rem;
    }
    
    .wip-popup-buttons {
        flex-direction: column;
    }
}

@media screen and (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        gap: 15px;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .pricing-cta {
        padding: 30px 20px;
    }
    
    .wip-popup-content {
        padding: 25px 15px;
    }
    
    .wip-popup-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
}