/* =========================================================================
   SUNROOF KLİNİK - STYLESHEET
   Endüstriyel Sunroof Üretim & Montaj
========================================================================= */

/* --- CSS Variables & Tokens --- */
:root {
    /* Color Palette */
    --color-anthracite-dark: #2C2C2C;
    --color-anthracite-light: #3D3D3D;
    --color-red-primary: #C0392B;
    --color-red-light: #E74C3C;
    --color-white: #FFFFFF;
    --color-gray-100: #F8F9FA;
    --color-gray-200: #E9ECEF;
    --color-gray-300: #DEE2E6;
    --color-gray-400: #CED4DA;
    --color-gray-500: #ADB5BD;
    --color-gray-600: #6C757D;
    --color-gray-700: #495057;
    --color-gray-800: #343A40;
    --color-gray-900: #212529;

    /* Theme Aliases */
    --bg-primary: var(--color-white);
    --bg-secondary: var(--color-gray-100);
    --bg-dark: var(--color-anthracite-dark);
    --text-primary: var(--color-anthracite-dark);
    --text-secondary: var(--color-gray-600);
    --text-light: var(--color-white);
    --accent-main: var(--color-red-primary);
    --accent-hover: var(--color-red-light);

    /* Typography */
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transitions & Animations */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.15);

    /* Layout */
    --max-width: 1200px;
    --header-height: 80px;
}

/* --- Resets & Base Styles --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

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

ul, ol {
    list-style: none;
}

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

/* --- Utility Classes --- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.text-red { color: var(--accent-main); }
.text-anthracite { color: var(--color-anthracite-light); }
.bg-light { background-color: var(--bg-secondary); }
.bg-dark { background-color: var(--bg-dark); color: var(--text-light); }
.text-center { text-align: center; }

.section {
    padding: 6rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header.align-left {
    text-align: left;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.title-underline {
    width: 60px;
    height: 4px;
    background-color: var(--accent-main);
    margin: 1rem auto 0;
    border-radius: 2px;
}

.section-header.align-left .title-underline {
    margin-left: 0;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-normal);
    text-transform: uppercase;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--accent-main);
    color: var(--text-light);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(192, 57, 43, 0.4);
}

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

.btn-outline:hover {
    background-color: var(--text-light);
    color: var(--bg-dark);
}

.btn-block {
    display: flex;
    width: 100%;
}

.ml-2 { margin-left: 0.5rem; }
.mt-4 { margin-top: 2rem; }

/* --- Navigation Bar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(44, 44, 44, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition-normal);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar.scrolled {
    height: 70px;
    background-color: var(--color-anthracite-dark);
    box-shadow: var(--shadow-md);
}

.nav-container {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-light);
    letter-spacing: 1px;
}

.logo i {
    color: var(--accent-main);
    font-size: 1.5rem;
}

.nav-links {
    height: 100%;
}

.nav-list {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 2rem;
}

.nav-link {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-gray-300);
    text-transform: uppercase;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-main);
    transition: var(--transition-normal);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-light);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.btn-contact {
    background-color: var(--accent-main);
    color: var(--text-light) !important;
    padding: 0.5rem 1.25rem;
    border-radius: 4px;
    border: none;
}

.btn-contact::after {
    display: none;
}

.btn-contact:hover {
    background-color: var(--accent-hover);
}

.hamburger {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    z-index: 1001;
}

.bar {
    width: 30px;
    height: 3px;
    background-color: var(--text-light);
    border-radius: 2px;
    transition: var(--transition-normal);
}

/* --- Hero Section --- */
.hero-section {
    height: 100vh;
    min-height: 600px;
    background-image: url('assets/images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(44, 44, 44, 0.9) 0%, rgba(61, 61, 61, 0.7) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero-headline {
    font-size: 4.5rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    text-shadow: 2px 4px 10px rgba(0,0,0,0.5);
    line-height: 1.1;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--color-gray-300);
    margin-bottom: 3rem;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce 2s infinite;
}

.scroll-indicator a {
    color: var(--color-gray-400);
    font-size: 2rem;
    opacity: 0.8;
}

.scroll-indicator a:hover {
    color: var(--text-light);
    opacity: 1;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-20px); }
    60% { transform: translateY(-10px); }
}

/* --- Features Section --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border-bottom: 4px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0;
    background-color: var(--bg-secondary);
    z-index: 0;
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-bottom-color: var(--accent-main);
}

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

.feature-icon, .feature-title, .feature-desc {
    position: relative;
    z-index: 1;
}

.feature-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(192, 57, 43, 0.1);
    color: var(--accent-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    transition: var(--transition-normal);
}

.feature-card:hover .feature-icon {
    background-color: var(--accent-main);
    color: var(--color-white);
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* --- About Section --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.about-image-wrapper:hover .about-img {
    transform: scale(1.05);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background-color: var(--color-anthracite-dark);
    color: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    border-left: 5px solid var(--accent-main);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    z-index: 2;
}

.exp-years {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
    color: var(--accent-main);
}

.exp-text {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-subtitle {
    font-size: 1.5rem;
    color: var(--color-anthracite-light);
    margin-bottom: 1.5rem;
}

.about-text {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.about-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.about-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    font-size: 1.05rem;
    color: var(--text-primary);
    font-weight: 500;
}

.about-list i {
    margin-top: 4px;
}

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

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.review-card {
    background-color: var(--color-gray-100);
    padding: 2.5rem;
    border-radius: 8px;
    position: relative;
    border: 1px solid var(--color-gray-200);
    transition: var(--transition-normal);
}

.review-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: var(--accent-main);
}

.quote-icon {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-size: 3rem;
    color: rgba(192, 57, 43, 0.1);
}

.stars {
    color: #F1C40F;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.review-text {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.reviewer-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.reviewer-avatar {
    width: 50px;
    height: 50px;
    background-color: var(--color-anthracite-dark);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.25rem;
}

.reviewer-details h4 {
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

.reviewer-details span {
    font-size: 0.875rem;
    color: var(--accent-main);
}

/* --- Contact Section --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-form-container {
    background-color: var(--color-white);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-anthracite-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--color-gray-300);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
    background-color: var(--color-gray-100);
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-main);
    background-color: var(--color-white);
    box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.1);
}

.contact-info-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.info-icon {
    width: 50px;
    height: 50px;
    background-color: var(--color-anthracite-dark);
    color: var(--accent-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.info-content h4 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.info-content p, .info-content a {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.info-content a:hover {
    color: var(--accent-main);
}

.map-container {
    height: 300px;
    border-radius: 8px;
    overflow: hidden;
    background-color: var(--color-gray-300);
    position: relative;
    margin-top: auto;
}

.map-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--color-gray-600);
    font-size: 1.2rem;
}

.map-placeholder i {
    font-size: 3rem;
    color: var(--color-gray-500);
}

/* --- Footer --- */
.footer {
    background-color: var(--color-anthracite-dark);
    color: var(--color-gray-300);
    padding: 5rem 0 2rem;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    margin-bottom: 1.5rem;
    display: inline-flex;
}

.footer-desc {
    font-size: 1rem;
    line-height: 1.8;
}

.footer-heading {
    color: var(--color-white);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent-main);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    position: relative;
    padding-left: 1.25rem;
}

.footer-links a::before {
    content: '\f105';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent-main);
    font-size: 0.8rem;
}

.footer-links a:hover {
    color: var(--color-white);
    padding-left: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-anthracite-light);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.social-links a:hover {
    background-color: var(--accent-main);
    transform: translateY(-3px);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

.footer-legal a:hover {
    color: var(--color-white);
}

/* Scroll To Top */
#scrollToTopBtn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--accent-main);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

#scrollToTopBtn.show {
    opacity: 1;
    visibility: visible;
}

#scrollToTopBtn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-5px);
}

/* --- Animations --- */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* --- Responsive Design --- */
@media screen and (max-width: 1024px) {
    .hero-headline {
        font-size: 3.5rem;
    }
    
    .about-grid, .contact-grid {
        gap: 2rem;
    }
    
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
    
    .experience-badge {
        padding: 1.5rem;
        bottom: -15px;
        right: -15px;
    }
    
    .exp-years {
        font-size: 2.5rem;
    }
}

@media screen and (max-width: 900px) {
    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--color-anthracite-dark);
        transition: var(--transition-normal);
        overflow-y: auto;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 3rem;
        gap: 2rem;
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
    
    .navbar.scrolled .nav-links {
        top: 70px;
        height: calc(100vh - 70px);
    }

    /* Hamburger Animation */
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .hero-headline {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 1rem;
    }
    
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media screen and (max-width: 480px) {
    .section {
        padding: 4rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-section {
        min-height: 500px;
    }
    
    .contact-form-container, .review-card, .feature-card {
        padding: 1.5rem;
    }
}