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

:root {
    --primary-black: #000000;
    --secondary-black: #1a1a1a;
    --primary-white: #ffffff;
    --gray-light: #f5f5f5;
    --gray-medium: #666666;
    --gray-dark: #333333;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--primary-white);
    color: var(--primary-black);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary-black);
    text-transform: uppercase;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--gray-dark);
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: var(--transition);
    position: relative;
}

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

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-black);
}

.language-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 40px;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--gray-dark);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    cursor: pointer;
    padding: 5px 10px;
    transition: var(--transition);
    font-family: inherit;
    text-transform: uppercase;
}

.lang-btn:hover {
    color: var(--primary-black);
}

.lang-btn.active {
    color: var(--primary-black);
    font-weight: 600;
}

.lang-separator {
    color: var(--gray-medium);
    font-size: 14px;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--primary-black);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-white) 0%, var(--gray-light) 100%);
    position: relative;
    overflow: hidden;
    margin-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0,0,0,0.03) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero-content {
    text-align: center;
    z-index: 1;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: clamp(32px, 5vw, 64px);
    font-weight: 300;
    letter-spacing: 8px;
    text-transform: uppercase;
    margin-bottom: 20px;
    color: var(--primary-black);
    line-height: 1.2;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    font-weight: 400;
    letter-spacing: 3px;
    color: var(--gray-medium);
    margin-bottom: 30px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-line {
    width: 100px;
    height: 1px;
    background-color: var(--primary-black);
    margin: 0 auto;
    animation: fadeInUp 1s ease-out 0.4s both;
}

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

/* Section Styles */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 300;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 20px;
    color: var(--primary-black);
}

.section-line {
    width: 80px;
    height: 1px;
    background-color: var(--primary-black);
    margin: 0 auto;
}

/* About Section */
.about {
    background-color: var(--primary-white);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.address {
    font-size: 16px;
    color: var(--gray-medium);
    margin-bottom: 30px;
    line-height: 1.8;
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: var(--gray-dark);
}

/* Portfolio Preview */
.portfolio-preview {
    background-color: var(--gray-light);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.portfolio-card {
    background-color: var(--primary-white);
    padding: 50px;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.portfolio-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.portfolio-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.portfolio-card p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--gray-dark);
    margin-bottom: 30px;
}

.btn-secondary {
    display: inline-block;
    padding: 12px 30px;
    background-color: transparent;
    color: var(--primary-black);
    text-decoration: none;
    border: 1px solid var(--primary-black);
    font-size: 14px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: var(--transition);
}

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

/* Partnerships Section */
.partnerships {
    background-color: var(--primary-white);
}

.partnerships-content {
    max-width: 1000px;
    margin: 0 auto;
}

.partnership-item {
    margin-bottom: 60px;
}

.partnership-item h3 {
    font-size: 26px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.partnership-item p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--gray-dark);
    margin-bottom: 15px;
}

/* Page Header */
.page-header {
    padding: 180px 0 100px;
    text-align: center;
    background-color: var(--gray-light);
    margin-top: 80px;
}

.page-header h1 {
    font-size: clamp(40px, 5vw, 64px);
    font-weight: 300;
    letter-spacing: 6px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.page-header-line {
    width: 100px;
    height: 1px;
    background-color: var(--primary-black);
    margin: 0 auto 30px;
}

.page-header p {
    font-size: 18px;
    color: var(--gray-medium);
    letter-spacing: 1px;
}

/* Portfolio Detail */
.portfolio-detail {
    background-color: var(--primary-white);
    padding: 100px 0;
}

.portfolio-item {
    margin-bottom: 100px;
}

.portfolio-item-content {
    max-width: 900px;
    margin: 0 auto;
}

.portfolio-item h2 {
    font-size: clamp(32px, 4vw, 42px);
    font-weight: 300;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.portfolio-line {
    width: 80px;
    height: 1px;
    background-color: var(--primary-black);
    margin-bottom: 40px;
}

.portfolio-item p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--gray-dark);
    margin-bottom: 25px;
}

.portfolio-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature {
    padding: 30px;
    background-color: var(--gray-light);
    border-left: 3px solid var(--primary-black);
}

.feature h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.feature p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--gray-dark);
    margin: 0;
}

/* Portfolio Partnerships */
.portfolio-partnerships {
    background-color: var(--gray-light);
    padding: 100px 0;
}

.partnerships-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.partnership-card {
    background-color: var(--primary-white);
    padding: 50px;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.partnership-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.partnership-card p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--gray-dark);
    margin-bottom: 25px;
}

.partnership-card ul {
    list-style: none;
    padding: 0;
}

.partnership-card ul li {
    font-size: 14px;
    line-height: 1.8;
    color: var(--gray-dark);
    padding-left: 20px;
    position: relative;
    margin-bottom: 10px;
}

.partnership-card ul li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--primary-black);
}

/* Contact Section */
.contact-section {
    padding: 100px 0;
    background-color: var(--primary-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info h2,
.contact-form-wrapper h2 {
    font-size: 32px;
    font-weight: 300;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.contact-line {
    width: 80px;
    height: 1px;
    background-color: var(--primary-black);
    margin-bottom: 40px;
}

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

.info-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.info-item p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--gray-dark);
}

.info-item ul {
    list-style: none;
    padding: 0;
}

.info-item ul li {
    font-size: 15px;
    line-height: 2;
    color: var(--gray-dark);
    padding-left: 20px;
    position: relative;
}

.info-item ul li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--primary-black);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

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

.form-group label {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 8px;
    text-transform: uppercase;
    color: var(--gray-dark);
}

.form-group input,
.form-group textarea {
    padding: 15px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    background-color: var(--primary-white);
    font-family: inherit;
    font-size: 15px;
    color: var(--primary-black);
    transition: var(--transition);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-black);
}

.btn-primary {
    padding: 15px 40px;
    background-color: var(--primary-black);
    color: var(--primary-white);
    border: none;
    font-size: 14px;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    align-self: flex-start;
}

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

/* Footer */
footer {
    background-color: var(--primary-black);
    color: var(--primary-white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.footer-section p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.7);
}

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

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

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 1px;
}

/* Responsive Design */
@media (max-width: 968px) {
    .container {
        padding: 0 30px;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--primary-white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 50px;
        gap: 30px;
        transition: var(--transition);
        border-top: 1px solid rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        left: 0;
    }

    .language-selector {
        margin-left: 0;
        margin-right: 20px;
        order: 3;
    }

    .hamburger {
        display: flex;
        order: 4;
    }

    .navbar .container {
        flex-wrap: wrap;
    }
}

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

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

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

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

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

    .partnerships-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 0 20px;
    }

    section {
        padding: 60px 0;
    }

    .portfolio-card,
    .partnership-card {
        padding: 30px;
    }

    .portfolio-features {
        grid-template-columns: 1fr;
    }

    .language-selector {
        margin-right: 10px;
    }

    .lang-btn {
        font-size: 12px;
        padding: 4px 8px;
    }
}