/* ========================================
   MAKS Group - Industry 4.0 Website Styles
   ======================================== */

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

:root {
    /* Colors */
    --primary-color: #00B4D8;
    --primary-light: #48CAE4;
    --primary-dark: #0096C7;
    --secondary-color: #00D9A3;
    --dark-bg: #0A1929;
    --dark-card: #132F4C;
    --dark-light: #1E3A5F;
    --text-primary: #FFFFFF;
    --text-secondary: #B0BEC5;
    --text-muted: #78909C;
    --accent-gradient: linear-gradient(135deg, #00B4D8 0%, #00D9A3 100%);
    --card-shadow: 0 8px 32px rgba(0, 180, 216, 0.15);
    --card-hover-shadow: 0 16px 48px rgba(0, 180, 216, 0.25);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.5rem;
    --font-size-xl: 2rem;
    --font-size-2xl: 3rem;
    --font-size-3xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 25, 41, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-normal);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo img {
    height: 50px;
    width: auto;
    transition: var(--transition-fast);
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: var(--transition-fast);
}

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

.contact-btn {
    background: var(--accent-gradient);
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    color: white !important;
}

.contact-btn::after {
    display: none;
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 180, 216, 0.4);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 180, 216, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 217, 163, 0.15) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
    font-size: var(--font-size-sm);
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 8px 20px rgba(0, 180, 216, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 180, 216, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-xl);
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

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

.animate-fade-in {
    animation: fadeInUp 0.8s ease forwards;
}

.animate-fade-in-delay {
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.animate-fade-in-delay-2 {
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.animate-fade-in-delay-3 {
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

/* ========================================
   Section Styles
   ======================================== */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(0, 180, 216, 0.1);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.section-description {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ========================================
   About Section
   ======================================== */
.about {
    background: rgba(19, 47, 76, 0.3);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.about-card {
    background: var(--dark-card);
    padding: var(--spacing-lg);
    border-radius: 20px;
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.about-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--card-hover-shadow);
    border-color: var(--primary-color);
}

.about-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: var(--accent-gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.about-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ========================================
   Services Section
   ======================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--dark-card);
    padding: var(--spacing-lg);
    border-radius: 20px;
    transition: var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
}

.service-card.featured {
    border-color: var(--primary-color);
    box-shadow: var(--card-shadow);
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent-gradient);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--card-hover-shadow);
    border-color: var(--primary-color);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: rgba(0, 180, 216, 0.1);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.service-card > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.service-features {
    list-style: none;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.6rem 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.service-features i {
    color: var(--secondary-color);
    font-size: 0.8rem;
}

/* ========================================
   Solutions Section
   ======================================== */
.solutions {
    background: rgba(19, 47, 76, 0.3);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.solution-card {
    background: var(--dark-card);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--card-hover-shadow);
    border-color: var(--primary-color);
}

.solution-image {
    height: 150px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
}

.solution-content {
    padding: var(--spacing-md);
}

.solution-content h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.solution-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.solution-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
}

.solution-link:hover {
    gap: 1rem;
}

/* ========================================
   Cases Section
   ======================================== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.case-card {
    background: var(--dark-card);
    padding: var(--spacing-lg);
    border-radius: 20px;
    transition: var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--card-hover-shadow);
    border-color: var(--primary-color);
}

.case-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.case-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.case-meta h4 {
    font-size: var(--font-size-md);
    margin-bottom: 0.3rem;
}

.case-meta span {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.case-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.case-card > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.case-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.result-item {
    text-align: center;
}

.result-value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.3rem;
}

.result-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* ========================================
   Technologies Section
   ======================================== */
.technologies {
    background: rgba(19, 47, 76, 0.3);
}

.tech-categories {
    display: grid;
    gap: var(--spacing-lg);
}

.tech-category {
    background: var(--dark-card);
    padding: var(--spacing-lg);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.tech-category h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.tech-category h3 i {
    color: var(--primary-color);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tech-tag {
    background: rgba(0, 180, 216, 0.1);
    color: var(--primary-light);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-size: var(--font-size-sm);
    border: 1px solid rgba(0, 180, 216, 0.2);
    transition: var(--transition-fast);
}

.tech-tag:hover {
    background: rgba(0, 180, 216, 0.2);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background: rgba(19, 47, 76, 0.3);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.contact-info .section-header {
    text-align: left;
}

.contact-details {
    margin: var(--spacing-lg) 0;
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.contact-item-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    flex-shrink: 0;
}

.contact-item-content h4 {
    font-size: var(--font-size-md);
    margin-bottom: 0.3rem;
}

.contact-item-content p {
    color: var(--text-secondary);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1.2rem;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--accent-gradient);
    transform: translateY(-3px);
}

.contact-form-wrapper {
    background: var(--dark-card);
    padding: var(--spacing-lg);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.9rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    grid-column: 1 / -1;
    width: 100%;
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-md);
}

.form-message {
    grid-column: 1 / -1;
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: 10px;
    text-align: center;
    display: none;
}

.form-message.success {
    background: rgba(0, 217, 163, 0.1);
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
    display: block;
}

.form-message.error {
    background: rgba(255, 82, 82, 0.1);
    border: 1px solid #ff5252;
    color: #ff5252;
    display: block;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--dark-card);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.footer-social-link:hover {
    background: var(--accent-gradient);
    transform: translateY(-3px);
}

.footer-column h4 {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    font-size: var(--font-size-sm);
}

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

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

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

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
}

.footer-legal a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

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

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet */
@media (max-width: 992px) {
    :root {
        --font-size-3xl: 3rem;
        --font-size-2xl: 2.5rem;
        --font-size-xl: 1.75rem;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .case-results {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --font-size-3xl: 2.5rem;
        --font-size-2xl: 2rem;
        --font-size-xl: 1.5rem;
        --font-size-lg: 1.25rem;
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 80%;
        height: calc(100vh - 70px);
        background: rgba(10, 25, 41, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: 0;
        transition: var(--transition-normal);
        border-right: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        justify-content: center;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid,
    .services-grid,
    .solutions-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .case-results {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-3xl: 2rem;
        --font-size-2xl: 1.75rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
}