/* 
Modern Mobile App Design Studio Website
Design Approach: Clean card-based design with asymmetric layouts, contemporary gradients, and mobile-first responsive approach.
This creates a professional yet trendy aesthetic that showcases design expertise through the website itself.
*/

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

html {
    font-size: 16px;
    line-height: 1.6;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: #2d3748;
    background-color: #ffffff;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    color: #4a5568;
}

/* Container and Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background-color: #e2e8f0;
    color: #4a5568;
}

.btn-secondary:hover {
    background-color: #cbd5e0;
}

.btn-tertiary {
    background-color: transparent;
    color: #667eea;
    border: 1px solid #667eea;
}

.btn-tertiary:hover {
    background-color: #667eea;
    color: white;
}

.btn-outline {
    background-color: transparent;
    color: #4a5568;
    border: 2px solid #e2e8f0;
}

.btn-outline:hover {
    background-color: #4a5568;
    color: white;
    border-color: #4a5568;
}

.btn-full {
    width: 100%;
}

.btn-minimize {
    background: none;
    border: none;
    color: #667eea;
    font-size: 1.5rem;
    padding: 0.25rem 0.5rem;
    min-width: auto;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #ffffff 0%, #f7fafc 100%);
    border-top: 1px solid #e2e8f0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 1.5rem;
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.cookie-banner.hidden {
    transform: translateY(100%);
}

.cookie-banner.minimized {
    transform: translateY(calc(100% - 60px));
}

.cookie-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.cookie-text h3 {
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.cookie-text p {
    color: #4a5568;
    margin-bottom: 0;
}

.cookie-actions {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

.cookie-details {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.cookie-details.hidden {
    display: none;
}

.cookie-category {
    margin-bottom: 1rem;
}

.cookie-category label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.cookie-category p {
    margin-left: 1.5rem;
    font-size: 0.875rem;
    color: #718096;
}

.cookie-detail-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

/* Header */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(226, 232, 240, 0.3);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand h1 {
    color: #2d3748;
    font-size: 1.5rem;
    margin: 0;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: #4a5568;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #667eea;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 3px;
    background-color: #4a5568;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 50%, #e2e8f0 100%);
    overflow: hidden;
    position: relative;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h2 {
    font-size: 3.5rem;
    color: #2d3748;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    background: linear-gradient(135deg, #2d3748 0%, #667eea 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text p {
    font-size: 1.25rem;
    color: #4a5568;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

.hero-visual {
    position: relative;
    height: 500px;
}

.design-cards {
    position: relative;
    width: 100%;
    height: 100%;
}

.design-card {
    position: absolute;
    width: 240px;
    height: 320px;
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.card-1 {
    top: 0;
    left: 0;
    transform: rotate(-5deg);
    z-index: 3;
}

.card-2 {
    top: 80px;
    right: 40px;
    transform: rotate(8deg);
    z-index: 2;
}

.card-3 {
    bottom: 0;
    left: 60px;
    transform: rotate(-3deg);
    z-index: 1;
}

.design-card:hover {
    transform: scale(1.05) rotate(0deg);
}

/* Sections */
section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: #2d3748;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: #4a5568;
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    background-color: #f7fafc;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(226, 232, 240, 0.5);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon svg {
    width: 30px;
    height: 30px;
    color: white;
}

.service-card h3 {
    color: #2d3748;
    margin-bottom: 1rem;
}

.service-card p {
    color: #4a5568;
    line-height: 1.7;
}

/* Process Section */
.process-steps {
    display: grid;
    gap: 3rem;
}

.process-step {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.step-number {
    font-size: 2rem;
    font-weight: 700;
    color: #667eea;
    min-width: 60px;
    text-align: center;
}

.step-content h3 {
    color: #2d3748;
    margin-bottom: 0.75rem;
}

.step-content p {
    color: #4a5568;
    line-height: 1.7;
}

/* Portfolio Section */
.portfolio {
    background-color: #f7fafc;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.portfolio-item {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
}

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

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.portfolio-info {
    padding: 2rem;
}

.portfolio-info h3 {
    color: #2d3748;
    margin-bottom: 0.75rem;
}

.portfolio-info p {
    color: #4a5568;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.portfolio-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.portfolio-tags span {
    background-color: #edf2f7;
    color: #4a5568;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h2 {
    color: #2d3748;
    margin-bottom: 1.5rem;
}

.contact-info > p {
    color: #4a5568;
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.contact-details {
    display: grid;
    gap: 2rem;
}

.contact-item h3 {
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: #4a5568;
    line-height: 1.6;
}

.contact-form-wrapper {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(226, 232, 240, 0.5);
}

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

.form-group label {
    display: block;
    color: #2d3748;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
    background-color: #ffffff;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

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

/* Footer */
.footer {
    background-color: #2d3748;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 2rem;
}

.footer-info h3 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.footer-contact p {
    color: #a0aec0;
    margin-bottom: 0.5rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #667eea;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid #4a5568;
    text-align: center;
}

.footer-bottom p {
    color: #a0aec0;
    margin: 0;
}

/* Space Section (for index_space.html) */
#space {
    min-height: 80vh;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-visual {
        height: 400px;
    }
    
    .design-card {
        width: 200px;
        height: 280px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: 6rem 0 4rem;
    }
    
    .hero-text h2 {
        font-size: 2.5rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-visual {
        height: 300px;
    }
    
    .design-card {
        width: 160px;
        height: 240px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        flex-direction: column;
        gap: 1rem;
    }
    
    .step-number {
        text-align: left;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .cookie-content {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .cookie-actions {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .cookie-detail-actions {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-text h2 {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .service-card,
    .contact-form-wrapper {
        padding: 1.5rem;
    }
    
    .hero-visual {
        height: 250px;
    }
    
    .design-card {
        width: 140px;
        height: 200px;
    }
    
    .cookie-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .cookie-detail-actions {
        flex-direction: column;
    }
}

/* Accessibility enhancements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus styles for better accessibility */
button:focus,
input:focus,
textarea:focus,
a:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Skip to content link for screen readers */
.skip-to-content {
    position: absolute;
    left: -9999px;
    z-index: 999;
    padding: 1rem;
    background-color: #667eea;
    color: white;
    text-decoration: none;
}

.skip-to-content:focus {
    left: 0;
    top: 0;
}