:root {
    --primary: #00796B;
    --primary-light: #E0F2F1;
    --primary-dark: #004D40;
    --secondary: #263238;
    --text-main: #455A64;
    --text-heading: #263238;
    --text-muted: #78909C;
    --bg-main: #FFFFFF;
    --bg-alt: #F5F7F7;
    --white: #FFFFFF;
    --border: #ECEFF1;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --container: 1100px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    color: var(--text-main);
    line-height: 1.7;
    background-color: var(--bg-main);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 32px;
}

h1, h2, h3, h4 {
    color: var(--text-heading);
    line-height: 1.2;
    font-weight: 700;
}

p {
    margin-bottom: 1.5rem;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 121, 107, 0.2);
}

.btn-outline {
    background: transparent;
    border-color: var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary-light);
}

/* Header */
header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 24px 0;
    transition: var(--transition);
}

header.scrolled {
    padding: 16px 0;
    box-shadow: 0 2px 20px rgba(0,0,0,0.03);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--secondary);
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.5px;
    white-space: nowrap;
}

.logo span {
    color: var(--primary);
}

.nav-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-heading);
    font-size: 0.9rem;
    opacity: 0.8;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--primary);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    flex-shrink: 0;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-heading);
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

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

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

.nav-cta {
    white-space: nowrap;
}

/* Hero Section */
.hero {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, #f0fdfa 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero-header {
    margin-bottom: 40px;
}

.hero h1 {
    font-size: 3.5rem;
    letter-spacing: -2px;
    color: var(--text-heading);
    max-width: 100%;
}

.hero-main {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 60px;
}

.hero-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

.hero-image-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
}

.hero-img {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* Services */
.services {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 80px;
}

.section-header span {
    color: var(--primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.service-card {
    padding: 40px;
    background: var(--white);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-light);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: var(--primary);
    display: block;
}

.service-card h3 {
    margin-bottom: 16px;
    font-size: 1.25rem;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 0;
}

/* Partners */
.partners {
    padding: 80px 0;
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.partners-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 60px;
}

.partners-content h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    width: 100%;
    max-width: 900px;
}

.partner-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
    text-align: center;
}

.partner-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-light);
}

.partner-image {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin: 0 auto 24px;
    display: block;
}

.partner-card h4 {
    font-size: 1.25rem;
    margin-bottom: 16px;
    color: var(--text-heading);
}

.partner-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 0;
    line-height: 1.6;
}

/* Design Section (Projektavimas) */
.design {
    padding: 120px 0;
}

.design-main {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 60px;
}

.design-text {
    flex: 1;
}

.design-image-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
}

.design-img {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.design-features {
    margin-top: 40px;
}

.design-features ul {
    list-style: none;
}

.design-features li {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    font-weight: 500;
}

.design-features li::before {
    content: '→';
    color: var(--primary);
    font-weight: 700;
}

/* Process */
.process {
    padding: 120px 0;
    background: var(--white);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.step {
    text-align: center;
    padding: 40px;
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.step:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-light);
}

.step-num {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 800;
    font-size: 1.25rem;
    margin: 0 auto 30px;
}

.step h3 {
    margin-bottom: 16px;
}

.step p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* Contact Section */
.contact {
    padding: 120px 0;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 100px;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
}

.contact-item {
    margin-bottom: 40px;
}

.contact-item span {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.contact-item a, .contact-item p {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-heading);
}

form {
    display: grid;
    gap: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-heading);
}

input, select, textarea {
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px var(--primary-light);
}

.radio-group {
    display: flex;
    gap: 30px;
    margin-top: 8px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: 500;
}

.success-message {
    text-align: center;
    padding: 60px;
    background: var(--primary-light);
    border-radius: var(--radius-md);
}

.success-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

/* Footer */
footer {
    padding: 100px 0 40px;
    background: var(--secondary);
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 80px;
    margin-bottom: 80px;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 24px;
}

.footer-brand p {
    opacity: 0.6;
    max-width: 350px;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 30px;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-col a {
    display: block;
    margin-bottom: 16px;
    opacity: 0.6;
    font-size: 0.95rem;
}

.footer-col a:hover {
    opacity: 1;
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.05);
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.4;
}

/* Responsive - Tablet */
@media (max-width: 1024px) {
    .hero h1 { 
        font-size: 3rem; 
    }
    
    .services-grid, .steps-grid { 
        grid-template-columns: repeat(2, 1fr); 
    }
    
    .contact-container { 
        grid-template-columns: 1fr; 
        gap: 60px; 
    }
    
    .partners-grid { 
        grid-template-columns: 1fr; 
    }
    
    .design-grid { 
        gap: 40px; 
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    /* Header Mobile */
    header .container {
        gap: 8px;
    }
    
    .nav-center {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        border-bottom: 1px solid var(--border);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        z-index: 999;
    }
    
    .nav-center.active {
        max-height: 400px;
    }
    
    .nav-links {
        flex-direction: column;
        gap: 0;
        padding: 20px 16px;
    }
    
    .nav-links li {
        border-bottom: 1px solid var(--border);
        padding: 12px 0;
    }
    
    .nav-links li:last-child {
        border-bottom: none;
    }
    
    .nav-links a {
        display: block;
        font-size: 1rem;
        opacity: 1;
    }
    
    .hamburger { 
        display: flex; 
    }
    
    .nav-right {
        gap: 8px;
        min-width: 0;
    }
    
    .logo {
        font-size: 0.85rem;
        gap: 3px;
    }
    
    .logo span {
        display: inline;
    }
    
    .nav-cta {
        padding: 10px 12px;
        font-size: 0.75rem;
        white-space: normal;
        line-height: 1.2;
    }
    
    /* Hero Mobile */
    .hero {
        padding: 140px 0 60px;
    }
    
    .hero-container {
        grid-template-columns: 1fr 0.8fr;
        gap: 20px;
    }
    
    .hero h1 { 
        font-size: 1.5rem; 
    }
    
    .hero p {
        font-size: 0.9rem;
        margin-bottom: 0;
    }
    
    .hero-btns { 
        flex-direction: row; 
        gap: 12px;
        margin-top: 20px;
    }
    
    .hero-btns .btn {
        flex: 1;
        padding: 12px 16px;
        font-size: 0.85rem;
    }
    
    .hero-img {
        height: 250px;
        width: 100%;
    }
    
    /* Services Mobile */
    .services {
        padding: 80px 0;
    }
    
    .services-grid { 
        grid-template-columns: 1fr; 
    }
    
    .section-header {
        margin: 0 auto 60px;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    /* Partners Mobile */
    .partners {
        padding: 60px 0;
    }
    
    .partners-grid { 
        grid-template-columns: 1fr; 
        gap: 30px;
    }
    
    /* Design Mobile */
    .design {
        padding: 80px 0;
    }
    
    .design-main {
        flex-direction: column;
        gap: 30px;
    }

    .design-image-wrapper {
        order: -1;
    }

    .design-img {
        max-height: 300px;
    }
    
    /* Process Mobile */
    .process {
        padding: 80px 0;
    }
    
    .steps-grid { 
        grid-template-columns: 1fr; 
    }
    
    .step {
        padding: 30px 20px;
    }
    
    /* Contact Mobile */
    .contact {
        padding: 80px 0;
    }
    
    .contact-info h2 {
        font-size: 1.75rem;
    }
    
    .form-row { 
        grid-template-columns: 1fr; 
    }
    
    /* Footer Mobile */
    footer {
        padding: 60px 0 30px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }
    
    .footer-brand p {
        max-width: 100%;
    }
}

/* Extra Small Devices */
@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .hero-main {
        flex-direction: column;
        gap: 20px;
    }

    .hero-image-wrapper {
        order: -1;
    }
    
    .hero h1 { 
        font-size: 1.8rem; 
    }
    
    .hero p {
        font-size: 1rem;
        margin-bottom: 20px;
    }
    
    .hero-img {
        height: auto;
        max-height: 250px;
    }
    
    .hero-btns {
        gap: 10px;
        margin-top: 10px;
    }
    
    .hero-btns .btn {
        flex: 1;
        padding: 12px 16px;
        font-size: 0.85rem;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .contact-info h2 {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.85rem;
    }
    
    .logo {
        font-size: 0.9rem;
    }
    
    .radio-group {
        gap: 15px;
    }
}