:root {
    --primary: #D7A138;
    --primary-dark: #B8892E;
    --primary-light: #E8C06A;
    --dark: #1a1a2e;
    --dark-secondary: #16213e;
    --light: #ffffff;
    --light-secondary: #f8f9fa;
    --gray: #6c757d;
    --gray-light: #e9ecef;
}

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

html {
    scroll-behavior: smooth;
}

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

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

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

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--light) 0%, var(--light-secondary) 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 10px;
    letter-spacing: -2px;
    line-height: 1.1;
}

.tagline {
    font-size: 1.5rem;
    color: var(--dark-secondary);
    margin-bottom: 20px;
    font-weight: 600;
}

.description {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto 40px;
}

.hero-cta {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(215, 161, 56, 0.3);
}

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

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

.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--primary);
    bottom: -50px;
    left: -50px;
    animation: float 10s ease-in-out infinite reverse;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: var(--primary);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(5deg); }
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.1; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.15; }
}

.projects {
    padding: 100px 0;
    background: var(--light-secondary);
}

.projects h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    margin-bottom: 50px;
    font-size: 1.1rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.project-card {
    background: var(--light);
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.project-icon svg {
    width: 30px;
    height: 30px;
    color: var(--light);
}

.project-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark);
}

.project-card > p {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.project-features {
    list-style: none;
    margin-bottom: 25px;
}

.project-features li {
    padding: 8px 0;
    color: var(--dark-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.btn-project {
    display: inline-block;
    width: 100%;
    text-align: center;
    padding: 14px;
    background: var(--primary);
    color: var(--light);
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-project:hover {
    background: var(--primary-dark);
}

.about {
    padding: 100px 0;
    background: var(--light);
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 50px;
    color: var(--dark);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.about-card {
    text-align: center;
    padding: 40px 30px;
    border-radius: 20px;
    background: var(--light-secondary);
    transition: all 0.3s ease;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
}

.about-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.3;
    margin-bottom: 15px;
}

.about-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark);
}

.about-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

.contact {
    padding: 100px 0;
    background: var(--dark);
    color: var(--light);
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.contact .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.contact-info {
    text-align: center;
    margin-top: 40px;
}

.contact-info p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
}

.contact-info a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: var(--primary-light);
}

.footer {
    padding: 30px 0;
    background: var(--dark-secondary);
    text-align: center;
}

.footer p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.footer-links {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s ease;
}

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

.logo-img {
    width: 60px;
    height: 40px;
    margin-right: 10px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.faq {
    padding: 100px 0;
    background: var(--light-secondary);
}

.faq h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 50px;
    color: var(--dark);
}

.faq-grid {
    display: grid;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--light);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.faq-item summary {
    padding: 20px 25px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--dark);
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 700;
    transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item summary:hover {
    background: var(--light-secondary);
}

.faq-item p {
    padding: 0 25px 20px;
    color: var(--gray);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--light);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .tagline {
        font-size: 1.2rem;
    }

    .description {
        font-size: 1rem;
    }

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

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .project-card {
        padding: 30px 20px;
    }
}