:root {
    --primary: #1a365d;
    --primary-light: #2c5282;
    --accent: #c53030;
    --accent-hover: #9b2c2c;
    --light: #f7fafc;
    --dark: #1a202c;
    --gray: #718096;
    --light-gray: #e2e8f0;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

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

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

/* Header */
header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--white);
}

.logo-text h1 {
    font-size: 1.4rem;
    color: var(--primary);
    font-weight: 700;
    line-height: 1.2;
}

.logo-text span {
    font-size: 0.75rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

nav a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

nav a:hover,
nav a.active {
    color: var(--accent);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s;
}

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

.mobile-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('assets/hero-renovation.jpg') center/cover;
    opacity: 0.3;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero h2 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 30px;
    opacity: 0.95;
}

.btn {
    display: inline-block;
    padding: 15px 35px;
    background: var(--accent);
    color: var(--white);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--white);
    margin-left: 15px;
}

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

/* Section Styles */
section {
    padding: 80px 0;
}

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

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

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

/* Services Preview */
.services {
    background: var(--light);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.service-icon svg {
    width: 35px;
    height: 35px;
    fill: var(--white);
}

.service-card h3 {
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--gray);
    margin-bottom: 20px;
}

.link-arrow {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: gap 0.3s;
}

.link-arrow:hover {
    gap: 12px;
}

/* Why Choose Us */
.features {
    background: var(--white);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-item {
    display: flex;
    gap: 20px;
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: var(--accent);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon svg {
    width: 25px;
    height: 25px;
    fill: var(--white);
}

.feature-content h3 {
    color: var(--primary);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

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

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

.about-preview .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.about-content p {
    opacity: 0.95;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

/* CTA Section */
.cta {
    background: var(--accent);
    color: var(--white);
    text-align: center;
    padding: 80px 0;
}

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

.cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.95;
}

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

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

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-section p,
.footer-section a {
    color: var(--gray);
    text-decoration: none;
    line-height: 1.8;
}

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

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

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

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: 30px;
    text-align: center;
    color: var(--gray);
}

/* Services Page */
.page-header {
    background: var(--primary);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.page-header h2 {
    font-size: 3rem;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.service-detail {
    padding: 80px 0;
}

.service-detail:nth-child(even) {
    background: var(--light);
}

.service-detail .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.service-detail.reverse .container {
    direction: rtl;
}

.service-detail.reverse .container > * {
    direction: ltr;
}

.service-detail-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.service-detail-image img {
    width: 100%;
    height: 350px;
    object-fit: cover;
}

.service-detail-content h3 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 20px;
}

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

.service-list {
    list-style: none;
}

.service-list li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    color: var(--dark);
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
}

/* About Page */
.about-hero {
    background: var(--primary);
    color: var(--white);
    padding: 80px 0;
}

.about-hero h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.about-story {
    padding: 80px 0;
}

.about-story .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.story-content h3 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.story-content p {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.values {
    background: var(--light);
    padding: 80px 0;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.value-card {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
}

.value-card h3 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

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

/* Contact Page */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

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

.contact-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--white);
}

.contact-item h4 {
    color: var(--primary);
    margin-bottom: 5px;
}

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

.contact-item a {
    color: var(--accent);
    text-decoration: none;
}

.contact-form {
    background: var(--light);
    padding: 40px;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 25px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--light-gray);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        display: none;
    }

    .mobile-menu {
        display: block;
    }

    .hero {
        padding: 60px 0;
    }

    .hero h2 {
        font-size: 2rem;
    }

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

    .about-preview .container,
    .service-detail .container,
    .about-story .container,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .service-detail.reverse .container {
        direction: ltr;
    }

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

    .btn-secondary {
        margin-left: 0;
        margin-top: 15px;
    }

    .hero .btn {
        display: block;
        text-align: center;
    }
}