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

:root {
    --primary: #1F3A5F;
    --secondary: #3D5A80;
    --accent: #98C1D9;
    --light: #E0FBFC;
    --dark: #293241;
    --white: #ffffff;
    --gray: #6B7280;
    --light-gray: #F3F4F6;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
}

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

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

/* Header */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

nav a {
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s;
    padding: 8px 0;
}

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

/* Mobile menu */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    margin: 5px 0;
    transition: 0.3s;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 100px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 30px;
    opacity: 0.95;
}

.hero-btn {
    display: inline-block;
    background: var(--white);
    color: var(--primary);
    padding: 14px 36px;
    border-radius: 6px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.hero-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* Sections */
section {
    padding: 80px 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-title p {
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Cards grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: var(--white);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

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

.card p {
    color: var(--gray);
}

/* Image sections */
.image-text {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.image-text.reverse {
    direction: rtl;
}

.image-text.reverse > * {
    direction: ltr;
}

.image-text img {
    border-radius: 12px;
    width: 100%;
    height: 350px;
    object-fit: cover;
}

.image-text-content h2 {
    color: var(--primary);
    margin-bottom: 16px;
    font-size: 1.8rem;
}

.image-text-content p {
    color: var(--gray);
    margin-bottom: 20px;
}

/* Features */
.features {
    background: var(--light-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature {
    text-align: center;
    padding: 20px;
}

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

.feature h3 {
    color: var(--primary);
    margin-bottom: 10px;
}

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

/* Gallery */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.gallery img {
    border-radius: 10px;
    width: 100%;
    height: 250px;
    object-fit: cover;
}

/* Contact section */
.contact-section {
    background: var(--light-gray);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info h2 {
    color: var(--primary);
    margin-bottom: 24px;
    font-size: 1.8rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    color: var(--dark);
    margin-bottom: 4px;
}

.contact-item p {
    color: var(--gray);
}

/* Form */
.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.contact-form h3 {
    color: var(--primary);
    margin-bottom: 24px;
    font-size: 1.4rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--dark);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

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

.form-group textarea {
    height: 120px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.submit-btn:hover {
    background: var(--secondary);
}

/* Service pages */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 60px 20px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.page-header p {
    opacity: 0.9;
}

.content-section {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 20px;
}

.content-section h2 {
    color: var(--primary);
    margin: 32px 0 16px;
    font-size: 1.5rem;
}

.content-section h2:first-child {
    margin-top: 0;
}

.content-section p {
    color: var(--gray);
    margin-bottom: 16px;
}

.content-section ul {
    color: var(--gray);
    margin-left: 24px;
    margin-bottom: 16px;
}

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

/* Services list */
.services-list {
    display: grid;
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.service-item {
    background: var(--white);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 30px;
    align-items: start;
}

.service-number {
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.service-item h3 {
    color: var(--primary);
    margin-bottom: 12px;
    font-size: 1.4rem;
}

.service-item p {
    color: var(--gray);
}

/* About page */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 40px auto 0;
}

.team-member {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.team-member img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.team-member-info {
    padding: 24px;
    text-align: center;
}

.team-member h3 {
    color: var(--primary);
    margin-bottom: 6px;
}

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

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

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto 40px;
}

.footer-col h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-col p {
    color: #aaa;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.footer-col a {
    display: block;
    color: #aaa;
    margin-bottom: 10px;
    transition: color 0.3s;
    font-size: 0.95rem;
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
    color: #888;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 900px) {
    .image-text {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .image-text.reverse {
        direction: ltr;
    }

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

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

    .service-number {
        margin: 0 auto;
    }
}

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

    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        padding: 20px;
    }

    nav.active {
        display: block;
    }

    nav ul {
        flex-direction: column;
        gap: 16px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    section {
        padding: 50px 20px;
    }

    .section-title h2 {
        font-size: 1.6rem;
    }

    .contact-form {
        padding: 24px;
    }
}