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

:root {
    --primary: #2d3e50;
    --secondary: #5a7a9a;
    --accent: #8fa4b8;
    --light: #f7f9fb;
    --dark: #1a2530;
    --text: #3a4a5a;
    --white: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: var(--text);
    background: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

header {
    background: var(--white);
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.5px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 35px;
}

nav a {
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 0;
    position: relative;
}

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

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

nav a:hover::after {
    width: 100%;
}

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

.mobile-menu span {
    width: 25px;
    height: 2px;
    background: var(--primary);
    transition: 0.3s;
}

.hero {
    padding: 160px 20px 100px;
    background: linear-gradient(135deg, var(--light) 0%, var(--white) 100%);
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text);
    max-width: 600px;
    margin: 0 auto 35px;
}

.btn {
    display: inline-block;
    padding: 14px 35px;
    background: var(--primary);
    color: var(--white);
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

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

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

section {
    padding: 90px 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.section-title p {
    color: var(--text);
    max-width: 550px;
    margin: 0 auto;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 30px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.12);
}

.card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.card-content {
    padding: 25px;
}

.card-content h3 {
    font-size: 1.25rem;
    color: var(--primary);
    margin-bottom: 12px;
}

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

.image-block {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.image-block img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.content-block h2 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.content-block p {
    margin-bottom: 18px;
    color: var(--text);
}

.features {
    background: var(--light);
}

.feature-item {
    text-align: center;
    padding: 40px 25px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 3px 20px rgba(0,0,0,0.06);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    color: var(--primary);
}

.feature-item h3 {
    font-size: 1.15rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.feature-item p {
    color: var(--text);
    font-size: 0.9rem;
}

.alt-section {
    background: var(--light);
}

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

.contact-info {
    padding: 40px;
    background: var(--primary);
    border-radius: 12px;
    color: var(--white);
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 25px;
}

.contact-item span {
    font-size: 1.3rem;
}

.contact-item p {
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 5px 30px rgba(0,0,0,0.08);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid #dde3ea;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

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

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 20px 30px;
}

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

.footer-brand {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-desc {
    color: var(--accent);
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--accent);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 25px;
    text-align: center;
    color: var(--accent);
    font-size: 0.85rem;
}

.page-header {
    padding: 140px 20px 70px;
    background: linear-gradient(135deg, var(--light) 0%, var(--white) 100%);
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.page-header p {
    color: var(--text);
    max-width: 550px;
    margin: 0 auto;
}

.text-content {
    max-width: 800px;
    margin: 0 auto;
}

.text-content h2 {
    font-size: 1.6rem;
    color: var(--primary);
    margin: 35px 0 15px;
}

.text-content h3 {
    font-size: 1.3rem;
    color: var(--primary);
    margin: 25px 0 12px;
}

.text-content p {
    margin-bottom: 15px;
    color: var(--text);
}

.text-content ul {
    margin: 15px 0 15px 25px;
    color: var(--text);
}

.text-content li {
    margin-bottom: 8px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin: 40px 0;
}

.gallery-grid img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border-radius: 10px;
}

.services-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background: var(--white);
    padding: 35px;
    border-radius: 12px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.08);
    border-left: 4px solid var(--secondary);
}

.service-card h3 {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 12px;
}

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

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.team-member {
    text-align: center;
}

.team-member img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 20px;
}

.team-member h3 {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 5px;
}

.team-member p {
    color: var(--secondary);
    font-size: 0.9rem;
}

.cta-section {
    background: var(--primary);
    text-align: center;
    color: var(--white);
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.cta-section p {
    margin-bottom: 30px;
    opacity: 0.9;
}

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

.cta-section .btn:hover {
    background: var(--light);
}

@media (max-width: 992px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mobile-menu {
        display: flex;
    }

    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }

    nav ul.active {
        display: flex;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .grid-2,
    .grid-3,
    .contact-grid,
    .services-list {
        grid-template-columns: 1fr;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }

    .page-header h1 {
        font-size: 2rem;
    }

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

@media (max-width: 480px) {
    .hero {
        padding: 130px 15px 70px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    section {
        padding: 60px 15px;
    }

    .btn {
        padding: 12px 25px;
    }

    .grid-4 {
        grid-template-columns: 1fr;
    }
}