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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 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);
    --accent-color: #ffca28; /* Fiyat listesi sari vurgu rengi */
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-white);
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header ve Icerik Hizalama */
.header {
    background: rgba(255, 255, 255, 0.95);
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.header.hidden {
    transform: translateY(-100%);
}

.header .container {
    display: flex;
    justify-content: space-between; /* Logoyu sola, butonu en saga yaslar */
    align-items: center;
}

.logo {
    display: inline-block;
    text-decoration: none;
    transition: transform 0.2s;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-img {
    height: 100px;
    width: auto;
    object-fit: contain;
}

/* --- YENI: Fiyat Listesi Butonu (Bold ve Sagda) --- */
.price-list-btn {
    background-color: var(--accent-color);
    color: #000 !important;
    padding: 12px 28px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 800; /* Extra Bold font */
    font-size: 1rem;
    text-transform: uppercase; /* Profesyonel buyuk harf gorunumu */
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: 2px solid var(--accent-color);
    box-shadow: 0 4px 12px rgba(255, 202, 40, 0.3);
}

.price-list-btn:hover {
    background-color: transparent;
    color: var(--accent-color) !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(255, 202, 40, 0.5);
}

/* Hero Section */
.hero {
    padding: 80px 0;
    margin-top: 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    background-image: url('images/hero-main.png');
    background-size: cover;
    background-position: center;
    animation: heroSlide 36s ease-in-out infinite;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(to bottom, rgba(249, 250, 251, 0.8), rgba(255, 255, 255, 0.8));
}

.hero .container {
    position: relative;
    z-index: 2;
}

@keyframes heroSlide {
    0%, 20% {
        background-image: url('images/hero-main.png');
        background-position: center;
        transform: scale(1.02) translateX(0);
    }
    25%, 45% {
        background-image: url('images/hero-alt-1.png');
        background-position: center right;
        transform: scale(1.06) translateX(-2%);
    }
    50%, 70% {
        background-image: url('images/hero-alt-2.png');
        background-position: center left;
        transform: scale(1.06) translateX(2%);
    }
    75%, 95% {
        background-image: url('images/hero-alt-3.png');
        background-position: center;
        transform: scale(1.04) translateX(0);
    }
    100% {
        background-image: url('images/hero-main.png');
        background-position: center;
        transform: scale(1.02) translateX(0);
    }
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 32px;
    line-height: 1.2;
}

.hero-description p {
    font-size: 1.125rem;
    color: var(--text-gray);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 16px;
    text-align: left;
}

/* Services Section */
.services {
    padding: 100px 0;
    background: var(--bg-white);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 32px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.service-card {
    background: var(--bg-white);
    padding: 40px 32px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-icon {
    margin-bottom: 24px;
    height: 280px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.service-icon img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--bg-light);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.contact-form input, .contact-form select, .contact-form textarea {
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-white);
}

.submit-btn {
    padding: 14px 32px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

/* Responsive Duzenlemeler */
@media (max-width: 768px) {
    .container { padding: 0 20px; }
    
    .logo-img { height: 65px; } /* Mobilde butona yer acmak icin */
    
    .price-list-btn {
        padding: 8px 16px;
        font-size: 0.8rem;
        font-weight: 700;
    }

    .hero-title { font-size: 2rem; }
    
    .services-grid { grid-template-columns: 1fr; }
    
    .form-row { grid-template-columns: 1fr; }
}