/* ===================================
   İstanbul Kombi Klima - CSS
   Mobil uyumlu, SEO dostu, optimize
   =================================== */

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0a2e4d;
    --secondary-color: #ff7b00;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --text-dark: #333333;
    --text-light: #666666;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

/* Header */
.header {
    background-color: var(--primary-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h2 {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
}

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

.nav-list a {
    color: var(--white);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

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

.nav-list a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--secondary-color);
}

.btn-call {
    background-color: var(--secondary-color);
    padding: 10px 20px !important;
    border-radius: 5px;
    font-weight: 600;
}

.btn-call:hover {
    background-color: #e66d00;
    transform: translateY(-2px);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--white);
    border-radius: 3px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0d3d5f 100%);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.hero-inner {
    padding: 60px 0;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-features {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
}

.feature-icon {
    font-size: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: #e66d00;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

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

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

.btn-large {
    font-size: 1.3rem;
    padding: 15px 40px;
}

/* Sections */
section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 40px;
    color: var(--primary-color);
}

.section-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

/* Services Grid */
.services {
    background-color: var(--light-gray);
}

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

.service-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

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

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

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

.service-card p {
    color: var(--text-light);
    line-height: 1.8;
}

.service-list {
    text-align: left;
    margin-top: 15px;
}

.service-list li {
    padding: 8px 0;
    color: var(--text-light);
    position: relative;
    padding-left: 25px;
}

.service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

/* Regions Grid */
.regions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.region-card {
    background-color: var(--light-gray);
    padding: 40px;
    border-radius: 10px;
    border-left: 5px solid var(--secondary-color);
}

.region-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.region-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

/* Why Us Section */
.why-us {
    background-color: var(--primary-color);
    color: var(--white);
}

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

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

.why-item {
    text-align: center;
    padding: 30px;
}

.why-item h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.why-item p {
    color: rgba(255, 255, 255, 0.9);
}

/* Region Detail */
.region-detail {
    background-color: var(--light-gray);
}

.region-detail h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.region-detail p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 30px;
}

.neighborhoods h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.neighborhoods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.neighborhood-item {
    background-color: var(--white);
    padding: 15px;
    border-radius: 5px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.neighborhood-item:hover {
    background-color: var(--secondary-color);
    color: var(--white);
    transform: translateY(-3px);
}

/* Petek Section */
.petek-section {
    background-color: var(--white);
}

.petek-section h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.petek-section > .container > p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 40px;
}

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

.benefit-item {
    background-color: var(--light-gray);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
}

.benefit-item h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.benefit-item p {
    color: var(--text-light);
}

/* Brands Section */
.brands {
    background-color: var(--light-gray);
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.brand-item {
    background-color: var(--white);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    color: var(--primary-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.brand-item:hover {
    box-shadow: var(--shadow);
    transform: translateY(-3px);
}

/* FAQ Section */
.faq {
    background-color: var(--white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--light-gray);
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid var(--secondary-color);
}

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

.faq-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #e66d00 100%);
    color: var(--white);
    text-align: center;
    padding: 80px 0;
}

.cta h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

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

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

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.contact-info h3,
.contact-form-wrapper h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.contact-item {
    margin-bottom: 20px;
}

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

.contact-item a {
    color: var(--secondary-color);
    font-weight: 600;
}

.contact-item a:hover {
    text-decoration: underline;
}

.map-container {
    margin-top: 30px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

/* Contact Form */
.contact-form {
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--primary-color);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

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

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 40px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-col h4 {
    margin-bottom: 20px;
    color: var(--secondary-color);
    font-size: 1.2rem;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

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

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-col ul li a:hover {
    color: var(--secondary-color);
}

.footer-col a {
    color: var(--secondary-color);
    font-weight: 600;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
    color: var(--white);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 20px;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .services-grid,
    .regions-grid,
    .why-grid,
    .benefits-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .neighborhoods-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .brands-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }
    
    .btn-large {
        font-size: 1.1rem;
        padding: 12px 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 50px 0;
    }
    
    .hero-inner {
        padding: 40px 0;
    }
    
    .hero-content h1 {
        font-size: 1.5rem;
    }
    
    section {
        padding: 40px 0;
    }
    
    .service-card,
    .region-card,
    .contact-form {
        padding: 20px;
    }
    
    .logo h2 {
        font-size: 1.2rem;
    }
}

/* Performance Optimizations */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print Styles */
@media print {
    .header,
    .whatsapp-float,
    .hero-buttons,
    .btn {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}