/* Ultra Premium Professional Automotive Theme */
:root {
    --bg-dark: #0b0e14; /* Deep Navy Black background */
    --bg-black: #0b0e14;
    --bg-surface: #111827; /* Container Slate Blue/Grey */
    --text-light: #f5f5f5;
    --text-muted: #e5e7eb; /* LIGHTER GRAY FOR READABILITY */
    --accent: #FFCC00; /* Logo Golden Yellow */
    --accent-hover: #E6B800;
    --secondary-accent: #E1251B; /* Signboard Red */
    --border-color: #1f2937;
    --glass-bg: rgba(17, 24, 39, 0.8);
    --glass-border: rgba(255, 255, 255, 0.05);
    --glow-effect: 0 0 50px rgba(0, 123, 255, 0.15); /* Soft outer blue glow */
}

html, body {
    overflow-x: hidden;
    width: 100%;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
}

.text-muted {
    color: var(--text-muted) !important;
}
.text-light {
    color: var(--text-light) !important;
}

.hero-font {
    font-family: 'Outfit', sans-serif;
}

h1, h2, h3, h4, h5, h6 {
    color: #ffffff;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.text-accent {
    color: var(--accent) !important;
}

.bg-accent {
    background-color: var(--accent) !important;
}

.bg-surface {
    background-color: var(--bg-surface) !important;
}

/* Base Buttons */
.btn-accent {
    background-color: var(--accent);
    color: #0b0e14 !important; /* Dark text for contrast against yellow */
    font-weight: 700;
    border: 2px solid var(--accent);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.btn-accent:hover {
    background-color: transparent !important;
    color: var(--accent) !important;
    border-color: var(--accent) !important;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 204, 0, 0.2);
}

.btn-outline-light {
    border: 2px solid var(--text-light);
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.btn-outline-light:hover {
    background-color: var(--text-light);
    color: var(--bg-black);
    transform: translateY(-3px);
}

/* Navigation */
.navbar {
    background: rgba(10, 10, 10, 0.9) !important;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

nav .nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted) !important;
    transition: color 0.3s, transform 0.3s;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin: 0 10px;
}

nav .nav-link:hover, nav .nav-link.active {
    color: #fff !important;
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.8rem;
    letter-spacing: -1px;
}

/* Reduced Hero Section */
.hero-section {
    min-height: 60vh; /* SLiDER KÜÇÜLTÜLDÜ */
    background: url('https://images.unsplash.com/photo-1619642751034-765dfdf7c58e?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat fixed;
    position: relative;
    display: flex;
    align-items: center;
    border-bottom: 3px solid var(--accent);
}

.internal-header {
    min-height: 40vh;
    background: url('https://images.unsplash.com/photo-1599307730999-72fbaecc9e9f?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat fixed;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.9), rgba(0,0,0,0.4));
    z-index: 1;
}

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

/* Slogan Band */
.section-slogan {
    background: linear-gradient(90deg, #111, var(--bg-surface));
    border-bottom: 1px solid var(--border-color);
}
.section-slogan h5 {
    margin: 0;
    font-weight: 600;
    font-size: 1.1rem;
    color: #ccc;
    font-family: 'Outfit', sans-serif;
}

/* Modern Professional Cards */
.service-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
    box-shadow: var(--glow-effect);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 0%;
    background: var(--accent);
    transition: height 0.4s ease;
    z-index: -1;
    opacity: 0.1;
}

.service-card:hover::before {
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 10px 30px rgba(255, 204, 0, 0.15);
}

/* Animations */
.slide-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }

/* Image Polish */
.image-border-gradient {
    position: relative;
    border-radius: 16px;
    padding: 4px;
    background: linear-gradient(45deg, var(--accent), transparent, var(--bg-surface));
}

.image-border-gradient img {
    border-radius: 12px;
    filter: contrast(1.1) brightness(0.9);
}

/* Section headings */
.section-title {
    position: relative;
    display: inline-block;
    padding-bottom: 15px;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--secondary-accent); /* Use red for underline */
    border-radius: 2px;
}