/* =================================================================
   1. TEMEL AYARLAR VE DEĞİŞKENLER
   ================================================================= */
:root {
    --primary-color: #0d6efd; /* Ana Renk - Mavi */
    --primary-color-dark: #0b5ed7; /* Ana Rengin Koyu Tonu */
    --secondary-color: #f8f9fa; /* İkincil Renk - Açık Gri Zemin */
    --text-color: #343a40; /* Ana Metin Rengi */
    --text-color-light: #6c757d; /* İkincil Metin Rengi */
    --white-color: #ffffff;
    --border-color: #dee2e6;
    --container-width: 1140px;
    --header-height: 100px; /* LOGONUN Sığması için ayarlandı */
    --border-radius: 0.375rem; /* 6px */
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --mobile-menu-width: 280px; /* Mobil menünün genişliği */
}

/* =================================================================
   2. GENEL STİLLER (RESET & TYPOGRAPHY)
   ================================================================= */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white-color);
    font-size: 16px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden; /* Yan kaymaları engeller */
}

/* Menü açıkken body'nin kaymasını engelle */
body.menu-open {
    overflow: hidden;
}

.container {
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--text-color); /* Başlıkların rengi */
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; } 
p { margin-bottom: 1rem; color: var(--text-color-light); }
.section-intro {
    font-size: 1.15rem;
    max-width: 800px;
    margin: 0 auto 30px auto;
    text-align: center;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}
a:hover {
    color: var(--primary-color-dark);
}

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

main {
    flex-grow: 1; 
}

section {
    padding: 80px 0;
}

/* =================================================================
   3. HEADER (ÜST BÖLÜM)
   ================================================================= */
.site-header {
    background-color: var(--white-color);
    border-bottom: 1px solid var(--border-color);
    height: var(--header-height); 
    position: sticky; top: 0; z-index: 1000;
    box-shadow: var(--box-shadow);
    display: flex; 
    align-items: center; 
    padding: 0 15px; 
}
.site-header .container { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    width: 100%;
    height: 100%;
    padding: 0; 
}
.site-header .logo {
    display: flex; 
    align-items: center;
    gap: 0; 
}
.site-header .logo a {
    text-decoration: none;
    display: flex;
    align-items: center;
    color: var(--text-color);
}
.site-header .logo img {
    max-height: 70px; 
    width: auto; 
    transition: transform 0.3s ease; 
}
.site-header .logo a:hover img {
    transform: scale(1.05); 
}

/* Masaüstü Navigasyon */
.desktop-nav {
    flex-grow: 1; 
}
.desktop-nav ul { 
    list-style-type: none; 
    display: flex; 
    gap: 35px; /* Menü öğeleri arasındaki boşluk artırıldı */
    justify-content: center; 
    align-items: center; 
    margin: 0; 
    padding: 0;
}
.desktop-nav ul li { 
    margin: 0;
}
.desktop-nav .nav-button-item {
    margin-left: 15px; /* Butonların sol tarafında boşluk */
}
/* İlk butonun ekstra soldan boşluğunu kaldır */
.desktop-nav .nav-button-item:first-of-type .btn {
    margin-left: 0;
}
.desktop-nav a {
    font-size: 1rem; font-weight: 500; color: var(--text-color); text-decoration: none; padding: 10px 0; position: relative;
    white-space: nowrap; /* Menü öğelerinin tek satırda kalmasını sağlar */
}
.desktop-nav a::after {
    content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background-color: var(--primary-color); transition: width 0.3s ease;
}
.desktop-nav a:hover::after { width: 100%; }
.desktop-lang-switcher {
    margin-left: 20px; /* Dil seçiciye soldan daha fazla boşluk */
}
.desktop-lang-switcher a { font-weight: bold; text-decoration: none; }

/* Mobil Menü Toggle Butonu (Masaüstünde gizli) */
.mobile-menu-toggle {
    display: none; 
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--text-color);
    cursor: pointer;
    padding: 10px;
    z-index: 1010; 
}

/* Mobil Navigasyon Menüsü */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%; 
    width: var(--mobile-menu-width); 
    height: 100vh;
    background-color: var(--white-color);
    box-shadow: -5px 0 15px rgba(0,0,0,0.2);
    z-index: 1005;
    transition: right 0.3s ease-in-out;
    display: flex;
    flex-direction: column;
    padding: 60px 20px 20px 20px; 
}

.mobile-nav.active { 
    right: 0; 
}

.mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--text-color);
    cursor: pointer;
    z-index: 1010;
}

.mobile-nav ul {
    list-style-type: none;
    display: flex;
    flex-direction: column; 
    gap: 15px;
    margin-bottom: 30px;
}
.mobile-nav ul li a {
    display: block;
    padding: 10px 0;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-color);
    text-decoration: none;
    border-bottom: 1px solid var(--border-color); 
}
.mobile-nav ul li:last-child a {
    border-bottom: none;
}

.mobile-lang-switcher {
    text-align: center;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}
.mobile-lang-switcher a {
    font-weight: bold;
    font-size: 1.1rem;
    color: var(--primary-color-dark);
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}
.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}


/* =================================================================
   4. ANA SAYFA BÖLÜMLERİ
   ================================================================= */
/* HERO BÖLÜMÜ */
.hero-section {
    background-color: var(--secondary-color);
    text-align: center;
    padding: 100px 0;
}
.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-color-dark); 
}
.hero-content p {
    font-size: 1.25rem;
    color: var(--text-color-light);
    max-width: 700px;
    margin: 0 auto 2rem auto;
}

/* ÇALIŞMA SAATLERİ */
.working-hours-section {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 30px 0;
    text-align: center;
    box-shadow: inset 0 3px 5px rgba(0,0,0,0.1);
}
.working-hours-section h2 {
    color: var(--white-color);
    font-size: 1.75rem;
    margin-bottom: 15px;
}
.working-hours-section p {
    font-size: 1.1rem;
    margin: 0;
    color: rgba(255, 255, 255, 0.9);
}
.working-hours-section p span {
    font-weight: bold;
}

/* ÖZELLİKLER BÖLÜMÜ */
.features-section {
    background-color: var(--white-color);
}
.features-section h2 {
    text-align: center;
    margin-bottom: 50px;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.feature-card {
    text-align: center;
    padding: 30px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    background-color: var(--white-color);
}
.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.07);
}
.feature-icon {
    margin-bottom: 20px;
    font-size: 3rem;
    color: var(--primary-color);
}

/* MÜŞTERİ YORUMLARI */
.testimonials-section {
    background-color: var(--secondary-color);
    padding: 80px 0;
    text-align: center;
}
.testimonials-section h2 {
    margin-bottom: 50px;
}
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.testimonial-card {
    background-color: var(--white-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: left;
    border: 1px solid var(--border-color);
}
.testimonial-card p.comment {
    font-style: italic;
    margin-bottom: 15px;
    color: var(--text-color-light);
}
.testimonial-card p.customer-name {
    font-weight: bold;
    color: var(--primary-color-dark);
    margin: 0;
    text-align: right;
    font-size: 0.9rem;
}


/* =================================================================
   5. HİZMETLER SAYFASI
   ================================================================= */
.page-header {
    background-color: var(--secondary-color);
    text-align: center;
    padding: 60px 0;
    margin-bottom: 40px; 
}
.page-header p {
    max-width: 700px;
    margin: 0 auto;
}

.services-section {
    padding-top: 0px; 
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.service-card {
    background-color: var(--white-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    height: 100%; 
}
.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.07);
}
.service-card a {
    display: flex; 
    flex-direction: column;
    justify-content: space-between;
    padding: 25px;
    text-align: center;
    color: var(--text-color);
    text-decoration: none;
    height: 100%;
}
.service-card h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}
.service-card p {
    font-size: 0.95rem;
    color: var(--text-color-light);
    flex-grow: 1; 
}

/* HİZMET DETAY SAYFASI */
.service-detail-section {
    padding: 50px 0;
}
.service-detail-section h2 {
    color: var(--primary-color-dark);
    margin-bottom: 25px;
    text-align: center; 
}
.service-detail-section .service-image {
    margin-bottom: 30px;
    text-align: center;
}
.service-detail-section .service-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    max-height: 400px; 
    object-fit: cover; 
}
.service-detail-section .service-content {
    line-height: 1.8;
    color: var(--text-color);
}
.service-detail-section .service-content p {
    margin-bottom: 1.2rem;
    color: var(--text-color);
}
.service-detail-section .service-content ul {
    list-style-type: disc;
    margin-left: 25px;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}
.service-detail-section .service-content ul li {
    margin-bottom: 8px;
}
.service-detail-section .service-content strong {
    color: var(--primary-color-dark);
}

/* HİZMETE ÖZEL REFERANSLAR */
.service-references {
    margin-top: 50px;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
}
.service-references h3 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--primary-color-dark);
}
.service-references-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.service-reference-item {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.service-reference-item img {
    width: 100%;
    height: 200px; 
    object-fit: cover;
    display: block;
}
.service-reference-item p {
    padding: 15px;
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-color-light);
    text-align: center;
    background-color: var(--secondary-color);
}


/* =================================================================
   6. KLİMA SATIŞI SAYFASI
   ================================================================= */
.brands-section {
    padding-top: 0;
    text-align: center;
}
.brands-section h2 {
    margin-bottom: 40px;
}
.brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}
.brand-item {
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-weight: 600;
    color: var(--text-color);
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    background-color: var(--white-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.brand-item:hover {
    background-color: var(--secondary-color);
    border-color: var(--primary-color);
    color: var(--primary-color-dark);
    box-shadow: 0 5px 10px rgba(0,0,0,0.08);
}
.brand-item.selected {
    background-color: var(--primary-color);
    color: var(--white-color);
    border-color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}
.brand-item img.brand-logo { 
    max-height: 60px;
    max-width: 100%;
    margin-bottom: 10px;
    filter: grayscale(100%); 
    opacity: 0.7; 
    transition: filter 0.3s ease, opacity 0.3s ease;
}
.brand-item:hover img.brand-logo,
.brand-item.selected img.brand-logo {
    filter: grayscale(0%); 
    opacity: 1; 
}
.brand-item.selected span {
    color: var(--white-color); 
}


.product-options-wrapper {
    margin-top: 50px;
    text-align: left;
}
.product-options-info {
    border: 1px dashed var(--border-color);
    padding: 30px;
    border-radius: var(--border-radius);
    background-color: var(--secondary-color);
    text-align: left;
    margin-bottom: 30px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.product-options-info h3 {
    color: var(--primary-color-dark);
    margin-bottom: 15px;
}
.product-options-info ul {
    list-style-type: disc;
    margin-left: 20px;
    margin-bottom: 20px;
    color: var(--text-color);
}
.product-options-info ul li {
    margin-bottom: 8px;
    color: var(--text-color);
}
.product-options-info .contact-info {
    font-weight: bold;
    color: var(--primary-color);
    margin-top: 25px;
}

/* Markaya özel görseller ve açıklama */
.brand-specific-content {
    margin-top: 40px;
    padding: 30px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--white-color);
    box-shadow: var(--box-shadow);
    text-align: left;
    display: block; /* Mobil için varsayılan olarak blok */
}
.brand-specific-content h3 {
    text-align: center;
    color: var(--primary-color-dark);
    margin-bottom: 25px;
    width: 100%; 
}
.brand-specific-images {
    display: grid;
    grid-template-columns: 1fr 1fr; /* Masaüstü görünümünde 2 sütun */
    gap: 20px;
    width: 100%; 
}
.brand-specific-images img {
    width: 100%;
    height: 200px; /* Görsel yüksekliğini sabitle */
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.brand-specific-description {
    line-height: 1.7;
    color: var(--text-color);
    width: 100%; 
    margin-top: 20px; 
}


/* =================================================================
   7. FİYAT LİSTESİ SAYFASI
   ================================================================= */
.pricing-section {
    padding-top: 0; 
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}
.price-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
    background-color: var(--white-color);
    height: 100%; 
}
.price-card:hover {
    box-shadow: var(--box-shadow);
}
.price-card .card-header {
    padding: 20px;
    background-color: var(--secondary-color);
    border-bottom: 1px solid var(--border-color);
}
.price-card .card-header h3 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text-color);
}
.price-card .card-price {
    padding: 30px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}
.price-card .price-amount {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
}
.price-card .price-currency {
    font-size: 1rem;
    color: var(--text-color-light);
    margin-left: 5px;
}
.price-card .card-body {
    padding: 20px;
    flex-grow: 1;
}
.price-card .card-body ul {
    list-style-type: none;
    padding: 0;
}
.price-card .card-body li {
    padding: 8px 0;
    border-bottom: 1px solid #f1f1f1;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 8px;
}
.price-card .card-body li::before {
    content: "\f00c"; 
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: #28a745; 
    font-size: 0.9rem;
}
.price-card .card-body li:last-child {
    border-bottom: none;
}
.price-card .card-footer {
    padding: 20px;
    text-align: center;
    background-color: var(--secondary-color);
}
.price-card .btn {
    width: 100%;
}

/* =================================================================
   8. ONLİNE RANDEVU SAYFASI
   ================================================================= */
.appointment-section {
    padding-top: 0;
}
.appointment-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}
@media (min-width: 768px) {
    .appointment-grid {
        grid-template-columns: 1fr 1fr;
    }
}
.appointment-form {
    background-color: var(--secondary-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}
.appointment-form h3 {
    color: var(--primary-color-dark);
    margin-bottom: 25px;
}
.appointment-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}
.appointment-form input[type="text"],
.appointment-form input[type="email"],
.appointment-form input[type="tel"],
.appointment-form input[type="date"], 
.appointment-form select,
.appointment-form textarea {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    color: var(--text-color);
    background-color: var(--white-color);
}
.appointment-form input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(0.5); 
}
.appointment-form textarea {
    resize: vertical;
    min-height: 100px;
}
.appointment-form button.btn {
    width: 100%;
}

.calendar-container {
    background-color: var(--white-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}
.calendar-container h3 {
    text-align: center;
    color: var(--primary-color-dark);
    margin-bottom: 20px;
}
#appointment-calendar {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 15px;
    min-height: 150px; 
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--text-color-light);
    font-style: italic;
    background-color: var(--secondary-color);
}


/* =================================================================
   9. REFERANSLAR SAYFASI
   ================================================================= */
.references-section {
    padding-top: 0;
}
.references-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.reference-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    background-color: var(--white-color);
}
.reference-card img {
    width: 100%;
    height: 250px; 
    object-fit: cover; 
    display: block;
}
.reference-card .project-info {
    padding: 20px;
    background-color: var(--white-color);
}
.reference-card h3 {
    margin-top: 0;
    color: var(--primary-color-dark);
}
.reference-card p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* =================================================================
   10. İLETİŞİM SAYFASI
   ================================================================= */
.contact-content-section {
    padding-top: 0;
    padding-bottom: 50px; 
}
.contact-grid-main {
    display: grid;
    grid-template-columns: 1fr 1fr; /* Masaüstünde iki sütun */
    gap: 40px;
}

.contact-info-block, .contact-form-block { 
    background-color: var(--secondary-color); 
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color); 
    height: 100%; 
    display: flex;
    flex-direction: column;
}
.contact-form-block { 
    background-color: var(--white-color); 
}

.contact-info-block h3, .contact-form-block h3 {
    color: var(--primary-color-dark);
    margin-bottom: 25px;
    text-align: center; 
}
.contact-info-block .info-item { 
    display: flex;
    align-items: flex-start; 
    gap: 15px; 
    margin-bottom: 20px; 
    font-size: 1.1rem;
    color: var(--text-color);
}
.contact-info-block .info-item:last-of-type {
    margin-bottom: 0;
}
.contact-info-block .info-item .icon {
    font-size: 1.5rem; 
    color: var(--primary-color);
    min-width: 25px; 
    text-align: center;
}
.contact-info-block .info-item strong {
    color: var(--primary-color-dark);
    display: block; 
    margin-bottom: 5px;
}
.contact-info-block .info-item a {
    color: var(--text-color); 
}
.contact-info-block .info-item a:hover {
    color: var(--primary-color);
}

.working-hours-contact-block { 
    margin-top: auto; 
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}
.working-hours-contact-block h4 {
    color: var(--primary-color-dark);
    margin-bottom: 15px;
    font-size: 1.3rem;
}
.working-hours-contact-block p {
    font-size: 1rem;
    color: var(--text-color);
}
.working-hours-contact-block p span {
    font-weight: bold;
    color: var(--primary-color-dark);
}

/* Harita Bölümü */
.map-section {
    padding-top: 50px;
    padding-bottom: 80px;
    background-color: var(--secondary-color);
    text-align: center;
}
.map-section h2 {
    margin-bottom: 40px;
    color: var(--primary-color-dark);
}
.map-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 oranında iframe için */
    height: 0;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}
.map-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* İletişim Formu Stilleri (GÜNCELLENDİ) */
.contact-form form {
    display: grid;
    grid-template-columns: 1fr 1fr; /* Masaüstünde 2 sütun */
    gap: 20px; /* Alanlar arası boşluk */
}
.contact-form .form-group {
    grid-column: span 1; /* Tek sütunlu eleman */
}
/* Mesaj alanı tam genişlik */
.contact-form .form-group.full-width {
    grid-column: span 2;
}
.contact-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form input[type="tel"],
.contact-form textarea {
    width: 100%;
    padding: 12px 15px; /* Daha geniş padding */
    margin-bottom: 0; /* Form-group içindeki margin */
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    color: var(--text-color);
    background-color: var(--white-color);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.contact-form input[type="text"]:focus,
.contact-form input[type="email"]:focus,
.contact-form input[type="tel"]:focus,
.contact-form textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
    outline: none;
}
.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}
.contact-form button.btn {
    width: 100%;
    grid-column: span 2; /* Buton tam genişlik */
    padding: 12px 15px;
    font-size: 1.1rem;
    margin-top: 10px; /* Butonun üstünde boşluk */
}


/* =================================================================
   11. KULLANICI YÖNETİMİ (KAYIT/GİRİŞ) SAYFALARI
   ================================================================= */
.auth-section {
    padding: 50px 0;
    background-color: var(--secondary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - var(--header-height) - 100px); 
}
.auth-form-wrapper {
    background-color: var(--white-color);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    max-width: 500px;
    width: 100%;
    text-align: left;
    border: 1px solid var(--border-color);
}
.auth-form-wrapper h1 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--primary-color-dark);
}
.auth-form-wrapper label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}
.auth-form-wrapper input[type="text"],
.auth-form-wrapper input[type="email"],
.auth-form-wrapper input[type="password"] {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    color: var(--text-color);
    background-color: var(--white-color);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.auth-form-wrapper input[type="text"]:focus,
.auth-form-wrapper input[type="email"]:focus,
.auth-form-wrapper input[type="password"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
    outline: none;
}
.auth-form-wrapper button.btn-primary {
    width: 100%;
    padding: 12px 15px;
    font-size: 1.1rem;
}
.auth-link-bottom {
    text-align: center;
    margin-top: 25px;
    font-size: 0.95rem;
    color: var(--text-color-light);
}
.auth-link-bottom a {
    font-weight: 600;
}


/* =================================================================
   12. WHATSAPP & BUTTONS & RESPONSIVE
   ================================================================= */
.btn {
    display: inline-block; padding: 12px 24px; font-size: 1rem; font-weight: 500; text-align: center; text-decoration: none; border-radius: var(--border-radius); cursor: pointer; transition: all 0.2s ease; border: 1px solid transparent;
}
.btn-primary {
    background-color: var(--primary-color); color: var(--white-color); border-color: var(--primary-color);
}
.btn-primary:hover {
    background-color: var(--primary-color-dark); border-color: var(--primary-color-dark); color: var(--white-color); text-decoration: none;
}
.btn-secondary { 
    background-color: var(--white-color);
    color: var(--primary-color);
    border-color: var(--primary-color);
}
.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
    border-color: var(--primary-color);
    text-decoration: none;
}

.btn-sm { 
    padding: 8px 16px;
    font-size: 0.9rem;
}

.whatsapp-button {
    position: fixed; 
    bottom: 25px; 
    right: 25px; 
    width: 60px; 
    height: 60px; 
    background-color: #25D366; 
    border-radius: 50%; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    box-shadow: 0 4px 10px rgba(0,0,0,0.2); 
    z-index: 1001; 
    transition: transform 0.2s ease;
}
.whatsapp-button:hover { 
    transform: scale(1.1); 
}
.whatsapp-button img { 
    width: 32px; 
    height: 32px; 
}

/* Alert mesajları */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    font-size: 1rem;
    text-align: center;
    font-weight: 500; 
}
.alert-success {
    color: #0f5132;
    background-color: #d1e7dd;
    border-color: #badbcc;
}
.alert-error {
    color: #842029;
    background-color: #f8d7da;
    border-color: #f5c2c7;
}


/* =================================================================
   13. SIKÇA SORULAN SORULAR (SSS) SAYFASI STİLLERİ
   ================================================================= */
.faq-section {
    padding: 50px 0;
}
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background-color: var(--white-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.faq-question {
    width: 100%;
    background-color: var(--secondary-color);
    padding: 18px 25px;
    border: none;
    text-align: left;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s ease;
}
.faq-question:hover, .faq-question[aria-expanded="true"] {
    background-color: #e9ecef;
}
.faq-question .toggle-icon {
    font-size: 1rem;
    transition: transform 0.3s ease;
}
.faq-question[aria-expanded="true"] .toggle-icon {
    transform: rotate(180deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 25px;
    background-color: var(--white-color);
    color: var(--text-color-light);
}
.faq-answer p {
    padding: 15px 0;
    margin: 0;
    border-top: 1px solid var(--border-color);
}
.faq-answer ul {
    margin-left: 20px;
    padding-bottom: 15px;
}
.faq-answer li {
    margin-bottom: 5px;
}

/* Soru Gönderme Formu (SSS Sayfası Altında) */
.submit-question-section {
    padding-top: 50px;
    border-top: 1px solid var(--border-color);
    margin-top: 80px;
    text-align: center;
}
.submit-question-section h3 {
    margin-bottom: 25px;
    color: var(--primary-color-dark);
}
.submit-question-form-wrapper {
    background-color: var(--white-color);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
    border: 1px solid var(--border-color);
}
.submit-question-form-wrapper label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}
.submit-question-form-wrapper input[type="text"],
.submit-question-form-wrapper input[type="email"],
.submit-question-form-wrapper textarea {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    color: var(--text-color);
    background-color: var(--white-color);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.submit-question-form-wrapper input[type="text"]:focus,
.submit-question-form-wrapper input[type="email"]:focus,
.submit-question-form-wrapper textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
    outline: none;
}
.submit-question-form-wrapper textarea {
    resize: vertical;
    min-height: 100px;
}
.submit-question-form-wrapper button.btn-primary {
    width: 100%;
    padding: 12px 15px;
    font-size: 1.1rem;
    margin-top: 10px;
}


/* =================================================================
   14. MOBİL UYUMLULUK (RESPONSIVE)
   ================================================================= */
/* 992px ve altındaki ekranlar (tablet ve mobil) */
@media (max-width: 992px) { 
    .site-header { 
        height: auto; 
        padding: 15px; 
    }
    .site-header .container {
        flex-direction: row; 
        justify-content: space-between;
        align-items: center;
    }
    .site-header .logo {
        margin-bottom: 0; 
    }
    .site-header .logo img { 
        max-height: 60px; 
    }

    .desktop-nav { 
        display: none;
    }
    .desktop-lang-switcher {
        display: none;
    }

    .mobile-menu-toggle { 
        display: block;
        margin-left: auto; 
    }
    
    .mobile-nav { 
        right: -var(--mobile-menu-width); 
    }
    .mobile-nav.active { 
        right: 0; 
    }

    section { padding: 50px 0; } 
    .page-header { padding: 40px 0; }

    .features-grid, .pricing-grid, .testimonial-grid, .services-grid, .brand-grid, .references-grid, .service-references-grid {
        grid-template-columns: 1fr;
    }
    .appointment-grid, .contact-grid-main { 
        grid-template-columns: 1fr; 
    }
    
    .whatsapp-button {
        width: 55px;
        height: 55px;
        bottom: 70px; 
        right: 15px;
    }
    .whatsapp-button img {
        width: 30px;
        height: 30px;
    }

    /* Auth Sayfaları Mobil Uyumluluğu */
    .auth-section {
        padding: 30px 0;
    }
    .auth-form-wrapper {
        padding: 25px;
        max-width: 90%;
    }
    .auth-form-wrapper h1 {
        font-size: 2rem;
        margin-bottom: 20px;
    }
    .auth-form-wrapper input, .auth-form-wrapper button {
        padding: 10px 12px;
        font-size: 1rem;
    }
    .auth-form-wrapper .alert { 
        font-size: 0.9rem;
        padding: 12px;
    }

    /* Klima Satışı Sayfası Mobil Görsel Düzeltmesi */
    .brand-specific-images {
        grid-template-columns: 1fr; 
    }
    .brand-specific-images img {
        max-width: 100%; 
        margin: 0; 
    }
    .brand-specific-description {
        margin-top: 15px; 
    }

    /* İletişim Formu Mobil Uyumluluğu */
    .contact-form form {
        grid-template-columns: 1fr; 
        gap: 15px;
    }
    .contact-form .form-group.full-width {
        grid-column: span 1; 
    }
    .contact-form button.btn {
        grid-column: span 1; 
    }

    /* SSS Sayfası Mobil Uyumluluğu */
    .faq-question {
        font-size: 1rem;
        padding: 15px 20px;
    }
    .faq-answer p {
        padding: 10px 0;
    }
    .submit-question-form-wrapper {
        padding: 25px;
    }
}

/* 576px ve altındaki ekranlar (çok küçük mobil cihazlar) */
@media (max-width: 576px) { 
    .site-header .logo img { max-height: 50px; } 

    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }
    h3 { font-size: 1.3rem; }
    .hero-content h1 { font-size: 2.2rem; }
    .hero-content p { font-size: 1rem; }
    .btn { padding: 10px 20px; font-size: 0.95rem; }

    .mobile-nav { 
        width: 250px;
        right: -250px;
    }
    .mobile-nav.active {
        right: 0;
    }
    .mobile-nav ul li a {
        font-size: 1rem;
    }
    .mobile-lang-switcher a {
        font-size: 1rem;
    }

    .whatsapp-button {
        width: 50px;
        height: 50px;
        bottom: 60px; 
        right: 10px;
    }
    .whatsapp-button img {
        width: 28px;
        height: 28px;
    }

    section { padding: 40px 0; } 
    .page-header { padding: 30px 0; }

    .auth-form-wrapper {
        padding: 20px;
    }
    .auth-form-wrapper h1 {
        font-size: 1.8rem;
    }

    .faq-question {
        font-size: 0.95rem;
        padding: 12px 15px;
    }
    .submit-question-form-wrapper {
        padding: 20px;
    }
}
/* =================================================================
   15. YENİ EKLENEN STİLLER (SWITCH & MINIMIZE FORM)
   ================================================================= */

/* Kar Tanesi Switch Butonu */
.snow-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.snow-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

/* Kar Tanesi Animasyon Konteyneri */
#snow-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
    display: none; /* JS ile aktif edilecek */
}

.snowflake {
    position: absolute;
    top: -20px;
    color: #fff;
    user-select: none;
    animation: fall linear infinite;
    text-shadow: 0 0 5px #000;
}

@keyframes fall {
    to {
        transform: translateY(105vh);
    }
}


/* Ana Sayfa Minimize Edilmiş Yorum Formu */
.testimonial-submission-section {
    padding: 60px 0;
    background-color: var(--secondary-color);
    text-align: center;
}

#toggle-testimonial-form {
    margin-bottom: 25px;
}

#testimonial-form-container {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-in-out;
    background-color: var(--white-color);
    padding: 0 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    max-width: 700px;
    margin: 0 auto;
    border: 1px solid var(--border-color);
}
#testimonial-form-container.open {
    padding: 40px 30px;
}

.testimonial-form-wrapper form {
    text-align: left;
}
.testimonial-form-wrapper label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}
.testimonial-form-wrapper input[type="text"],
.testimonial-form-wrapper textarea {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
}
.testimonial-form-wrapper textarea {
    min-height: 120px;
    resize: vertical;
}
.testimonial-form-wrapper button {
    width: 100%;
    padding: 12px 15px;
    font-size: 1.1rem;
}

/* Hizmet Detay Sayfası Butonları */
.service-detail-actions {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}