/* ==================== RESET & BASE ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #f97316;
    --dark: #1e293b;
    --gray: #64748b;
    --light: #f8fafc;
    --white: #ffffff;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
    padding-top: 70px;
}

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

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

ul {
    list-style: none;
}

/* ==================== HEADER ==================== */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

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

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--gray);
    transition: color 0.3s;
}

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

.cta-btn {
    background: var(--primary);
    color: var(--white) !important;
    padding: 10px 20px;
    border-radius: 8px;
    transition: background 0.3s;
}

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

/* ==================== HERO ==================== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: 180px 0 100px;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero .subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 15px;
}

.hero .description {
    font-size: 1.1rem;
    opacity: 0.85;
    max-width: 600px;
    margin: 0 auto 30px;
}

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

.btn-primary {
    background: var(--secondary);
    color: var(--white);
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(249, 115, 22, 0.3);
}

.btn-secondary {
    background: rgba(255,255,255,0.2);
    color: var(--white);
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 600;
    border: 2px solid var(--white);
    transition: background 0.3s;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.3);
}

/* ==================== SECTIONS ==================== */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.25rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--dark);
}

/* ==================== SERVICES ==================== */
.services {
    background: var(--light);
}

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

.service-card {
    background: var(--white);
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
    color: var(--dark);
}

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

/* ==================== ARTICLES ==================== */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.article-card {
    background: var(--white);
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 25px;
    transition: box-shadow 0.3s, border-color 0.3s;
}

.article-card:hover {
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    border-color: var(--primary);
}

.tag {
    display: inline-block;
    background: #dbeafe;
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.article-card h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: var(--dark);
    line-height: 1.4;
}

.article-card p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.read-more {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.read-more:hover {
    text-decoration: underline;
}

/* ==================== CASES ==================== */
.cases {
    background: var(--dark);
    color: var(--white);
}

.cases .section-title {
    color: var(--white);
}

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

.case-card {
    background: rgba(255,255,255,0.05);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s;
}

.case-card:hover {
    transform: scale(1.02);
}

.case-image {
    font-size: 4rem;
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.case-info {
    padding: 25px;
}

.case-city {
    color: var(--secondary);
    font-size: 0.85rem;
    font-weight: 600;
}

.case-info h3 {
    font-size: 1.2rem;
    margin: 8px 0 12px;
}

.case-info p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

/* ==================== ABOUT ==================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.about-text p {
    color: var(--gray);
    margin-bottom: 25px;
    font-size: 1.05rem;
}

.advantage-list li {
    margin-bottom: 15px;
    color: var(--gray);
}

.advantage-list strong {
    color: var(--dark);
}

.stats-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 40px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat {
    text-align: center;
    color: var(--white);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.85;
}

/* ==================== CONTACT ==================== */
.contact {
    background: var(--light);
}

.contact-desc {
    text-align: center;
    font-size: 1.1rem;
    color: var(--gray);
    margin-top: -40px;
    margin-bottom: 50px;
}

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

.contact-card {
    background: var(--white);
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.contact-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

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

.contact-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-top: 10px;
}

.service-areas {
    text-align: center;
}

.service-areas h3 {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.area-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.area-tag {
    background: var(--white);
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    color: var(--dark);
    border: 1px solid #e2e8f0;
}

/* ==================== FOOTER ==================== */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 20px;
}

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

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 15px;
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.footer-links h4,
.footer-services h4,
.footer-contact h4 {
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-links li,
.footer-services li {
    margin-bottom: 10px;
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

.footer-contact p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero .description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .stats-box {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 150px 0 80px;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}