/* Demirdöküm Kombi Servisi - Modern CSS */
:root {
    --demirdokum-red: #E2001A;
    --demirdokum-dark: #1a1a1a;
    --demirdokum-gray: #f5f5f5;
    --text-dark: #333;
    --text-light: #666;
}

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

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

/* Header */
header {
    background: linear-gradient(135deg, var(--demirdokum-red) 0%, #c20016 100%);
    color: white;
    padding: 2rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.header-content {
    text-align: center;
}

.logo {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.tagline {
    font-size: 1.1rem;
    opacity: 0.95;
    font-weight: 300;
}

/* Navigation */
nav {
    background: var(--demirdokum-dark);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    display: block;
    color: white;
    text-decoration: none;
    padding: 1rem 1.5rem;
    transition: all 0.3s ease;
    font-weight: 500;
}

nav ul li a:hover,
nav ul li a.active {
    background: var(--demirdokum-red);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(226, 0, 26, 0.9), rgba(194, 0, 22, 0.9)), 
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><rect fill="%23f5f5f5" width="1200" height="600"/></svg>');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    background: white;
    color: var(--demirdokum-red);
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* Main Content */
main {
    padding: 3rem 0;
}

section {
    margin-bottom: 3rem;
}

h2 {
    color: var(--demirdokum-red);
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--demirdokum-red);
}

h3 {
    color: var(--text-dark);
    font-size: 1.5rem;
    margin: 1.5rem 0 1rem;
}

p {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.8;
}

/* District Grid */
.district-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.district-card {
    background: white;
    border: 2px solid var(--demirdokum-gray);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    text-decoration: none;
    color: var(--text-dark);
}

.district-card:hover {
    border-color: var(--demirdokum-red);
    box-shadow: 0 5px 20px rgba(226, 0, 26, 0.2);
    transform: translateY(-5px);
}

.district-card h3 {
    color: var(--demirdokum-red);
    font-size: 1.3rem;
    margin: 0 0 0.5rem 0;
}

.district-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
}

/* Features */
.features {
    background: var(--demirdokum-gray);
    padding: 3rem 0;
    margin: 3rem 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-box {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-box h3 {
    color: var(--demirdokum-red);
    margin: 0.5rem 0;
}

/* Models */
.models-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.model-card {
    background: var(--demirdokum-gray);
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid var(--demirdokum-red);
}

.model-card h3 {
    color: var(--demirdokum-red);
    margin-top: 0;
}

/* FAQ */
.faq-item {
    background: white;
    border: 1px solid var(--demirdokum-gray);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.faq-item h3 {
    color: var(--demirdokum-red);
    margin-top: 0;
}

/* Contact */
.contact-info {
    background: var(--demirdokum-gray);
    padding: 2rem;
    border-radius: 10px;
    margin-top: 2rem;
}

.contact-info h3 {
    color: var(--demirdokum-red);
    margin-top: 0;
}

.contact-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    font-size: 2rem;
    color: var(--demirdokum-red);
}

/* Footer */
footer {
    background: var(--demirdokum-dark);
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

footer p {
    color: rgba(255,255,255,0.8);
    margin: 0;
}

/* Responsive */
@media (max-width: 768px) {
    .logo {
        font-size: 2rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    nav ul {
        flex-direction: column;
    }
    
    nav ul li a {
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .district-grid {
        grid-template-columns: 1fr;
    }
    
    h2 {
        font-size: 1.8rem;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-2 {
    margin-top: 2rem;
}

.mb-2 {
    margin-bottom: 2rem;
}