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

:root {
    --primary-color: #FFD700;
    --secondary-color: #FFA500;
    --bg-color: #000000;
    --text-color: #ffffff;
    --hover-color: #FFD700;
}

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

/* Header Styles */
.top-bar {
    background-color: #111;
    padding: 10px 0;
    border-bottom: 1px solid #333;
}

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

.top-bar .contact-info {
    display: flex;
    gap: 30px;
    font-size: 14px;
}

.top-bar .contact-info a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s;
}

.top-bar .contact-info a:hover {
    color: var(--primary-color);
}

header {
    background-color: var(--bg-color);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid #222;
}

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

.logo img {
    height: 60px;
    transition: filter 0.3s;
    cursor: pointer;
}

.logo img:hover {
    filter: brightness(0) saturate(100%) invert(80%) sepia(80%) saturate(500%) hue-rotate(360deg);
}

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

nav ul li a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 16px;
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--primary-color);
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 15px;
}

.call-button {
    background-color: var(--primary-color);
    color: var(--bg-color);
    padding: 12px 25px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
}

.call-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 215, 0, 0.3);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 28px;
    cursor: pointer;
}

/* Hero Section Variations */
.hero-referanslar {
    background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(26,26,26,0.8) 100%), url('../referanslar-bg.png') !important;
    background-size: cover !important;
    background-position: center !important;
    background-attachment: fixed !important;
}

.hero-blog {
    background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(26,26,26,0.8) 100%), url('../blog-bg.png') !important;
    background-size: cover !important;
    background-position: center !important;
    background-attachment: fixed !important;
}

.hero-iletisim {
    background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(26,26,26,0.8) 100%), url('../iletisim-bg.png') !important;
    background-size: cover !important;
    background-position: center !important;
    background-attachment: fixed !important;
}

.hero-egitim {
    background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(26,26,26,0.8) 100%), url('../hizmet-egitim.png') !important;
    background-size: cover !important;
    background-position: center !important;
    background-attachment: fixed !important;
}

.hero-anahtar {
    background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(26,26,26,0.8) 100%), url('../hizmet-anahtar.png') !important;
    background-size: cover !important;
    background-position: center !important;
    background-attachment: fixed !important;
}

.hero-magaza {
    background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(26,26,26,0.8) 100%), url('../hizmet-magaza.png') !important;
    background-size: cover !important;
    background-position: center !important;
    background-attachment: fixed !important;
}

.hero-suspend {
    background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(26,26,26,0.8) 100%), url('../hizmet-suspend.png') !important;
    background-size: cover !important;
    background-position: center !important;
    background-attachment: fixed !important;
}
.hero {
    position: relative;
    padding: 120px 20px;
    background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(26,26,26,0.8) 100%), url('../hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 165, 0, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-tag {
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 18px;
    margin-bottom: 40px;
    color: #ccc;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-color);
    padding: 15px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 215, 0, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-color);
    padding: 15px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    border: 2px solid var(--primary-color);
    transition: all 0.3s;
    display: inline-block;
}

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

/* Services Section */
.services {
    padding: 80px 20px;
    background-color: #0a0a0a;
}

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

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

.section-tag {
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.section-title h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.section-title p {
    color: #999;
    font-size: 16px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: #111;
    padding: 40px 30px;
    border-radius: 10px;
    transition: all 0.3s;
    border: 1px solid #222;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.2);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.service-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.service-card p {
    color: #999;
    font-size: 15px;
    line-height: 1.6;
}

/* Stats Section */
.stats {
    padding: 80px 20px;
    background: linear-gradient(135deg, #1a1a1a 0%, #000 100%);
}

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item h3 {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-item p {
    font-size: 16px;
    color: #999;
}

/* Content Section */
.content-section {
    padding: 80px 20px;
}

.content-section .container {
    max-width: 1200px;
    margin: 0 auto;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    align-items: center;
}

.content-text h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.content-text p {
    color: #999;
    font-size: 16px;
    margin-bottom: 15px;
    line-height: 1.8;
}

/* Footer */
footer {
    background-color: #0a0a0a;
    padding: 60px 20px 20px;
    border-top: 2px solid #222;
}

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

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

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

.footer-section p,
.footer-section a {
    color: #999;
    font-size: 14px;
    line-height: 2;
    text-decoration: none;
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #222;
    color: #666;
    font-size: 14px;
}

/* Blog Card Hover Effects */
.services-grid a:hover .service-card {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.2);
}

.services-grid a:hover .service-card h3 {
    color: var(--primary-color);
}

.footer-bottom a:hover {
    color: var(--secondary-color) !important;
    text-decoration: underline !important;
    transition: all 0.3s ease;
}

.footer-bottom .fab:hover {
    transform: scale(1.2);
    transition: all 0.3s ease;
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: #FFF;
    border-radius: 50%;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 2px 2px 15px rgba(37, 211, 102, 0.5);
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-color);
        border-top: 2px solid #222;
    }

    nav.active {
        display: block;
    }

    nav ul {
        flex-direction: column;
        gap: 0;
        padding: 20px;
    }

    nav ul li {
        border-bottom: 1px solid #222;
        padding: 15px 0;
    }

    .header-contact {
        display: none;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }

    .section-title h2 {
        font-size: 28px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .top-bar .contact-info {
        flex-direction: column;
        gap: 10px;
        font-size: 12px;
    }
    
    /* Hizmetler 2+2 mobilde tek sütun */
    .services-grid[style*="grid-template-columns: repeat(2, 1fr)"] {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 20px;
    }

    .services,
    .stats,
    .content-section {
        padding: 40px 20px;
    }

    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 24px;
        bottom: 20px;
        right: 20px;
    }
}