:root {
    --black: #0a0a0a;
    --dark-gray: #333333;
    --medium-gray: #888888;
    --light-gray: #f9f9f9;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --accent: #222222;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
}

body {
    background-color: var(--white);
    color: var(--black);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* --- AÇILIŞ YÜKLEME EKRANI (PRELOADER) --- */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.6s cubic-bezier(0.25, 1, 0.5, 1), visibility 0.6s;
}

#preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    max-width: 320px;
    width: 90%;
    text-align: center;
}

.preloader-logo {
    width: 100%;
    height: auto;
}

/* Yükleme Spinner'ı */
.spinner {
    width: 50px;
    height: 50px;
    border: 2px solid #e0e0e0;
    border-top: 2px solid var(--black);
    border-radius: 50%;
    animation: spin 1s infinite cubic-bezier(0.5, 0.1, 0.1, 1);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Sayfa Kaydırma Animasyon Sınıfları (Scroll Reveal) */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.btn {
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-align: center;
}

.btn-solid {
    background-color: var(--black);
    color: var(--white);
    border: 1px solid var(--black);
}

.btn-solid:hover {
    background-color: var(--white);
    color: var(--black);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.btn-outline {
    background-color: transparent;
    color: var(--black);
    border: 1px solid var(--black);
}

.btn-outline:hover {
    background-color: var(--black);
    color: var(--white);
}

header {
    background-color: var(--white);
    padding: 10px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: padding 0.4s ease, box-shadow 0.4s ease;
}

header.scrolled {
    padding: 5px 5%;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

.logo a {
    display: flex;
    align-items: center;
    height: 75px;
    transition: height 0.4s ease;
}

.logo svg {
    height: 100%;
    width: auto;
}

header.scrolled .logo a {
    height: 55px;
}

nav ul {
    display: flex;
    gap: 30px;
}

nav ul li a {
    font-size: 13px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding-bottom: 5px;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: var(--medium-gray);
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: 0;
    left: 0;
    background-color: var(--black);
    transition: width 0.3s ease;
}

nav ul li a:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.auth-links {
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.3s;
}

.auth-links:hover {
    color: var(--medium-gray);
}

.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.8)), url('https://images.unsplash.com/photo-1620626011761-996317b8d101?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80') center/cover;
    background-attachment: fixed; 
    height: 85vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--white);
    text-align: center;
    padding: 0 20px;
    position: relative;
}

.hero h1 {
    font-size: 56px;
    font-weight: 300;
    margin-bottom: 5px;
    letter-spacing: 4px;
    text-transform: uppercase;
    animation: fadeInDown 1s ease-out;
}

.hero h2 {
    font-size: 20px;
    font-weight: 300;
    font-style: italic;
    margin-bottom: 25px;
    letter-spacing: 2px;
    color: #eeeeee;
    animation: fadeInDown 1s ease-out 0.2s both;
}

.hero p {
    font-size: 16px;
    font-weight: 300;
    margin-bottom: 40px;
    max-width: 600px;
    letter-spacing: 1px;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero .btn {
    animation: fadeInUp 1s ease-out 0.6s both;
    backdrop-filter: blur(5px);
}

/* Animasyonlar */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--white);
    opacity: 0.7;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-15px) translateX(-50%); }
    60% { transform: translateY(-7px) translateX(-50%); }
}

.section-header {
    text-align: center;
    margin: 90px 0 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 15px;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background-color: var(--black);
}

.section-header p {
    color: var(--medium-gray);
    font-size: 15px;
    font-weight: 300;
    max-width: 600px;
    text-align: center;
}

.store-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 50px;
    padding: 0 5%;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--dark-gray);
    letter-spacing: 1px;
}

.filter-btn:hover, .filter-btn.active {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
}

.carousel-wrapper {
    position: relative;
    margin: 0 5%;
    padding: 0 60px;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 45px;
    height: 45px;
    background-color: var(--white);
    color: var(--black);
    border: 1px solid var(--border-color);
    cursor: pointer;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
}

.slider-btn svg { width: 20px; height: 20px; }
.slider-btn:hover { background-color: var(--black); color: var(--white); border-color: var(--black); }
.prev-btn { left: 0; }
.next-btn { right: 0; }

.products-grid {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 30px;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -ms-overflow-style: none;
    scrollbar-width: none;
    padding-bottom: 20px;
}
.products-grid::-webkit-scrollbar { display: none; }

.product-card {
    flex: 0 0 320px;
    border: 1px solid var(--border-color);
    background: var(--white);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    display: flex;
    flex-direction: column;
    scroll-snap-align: start;
    position: relative;
}

.product-card:hover {
    border-color: var(--black);
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.08);
}

.badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: var(--black);
    color: var(--white);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    padding: 5px 10px;
    letter-spacing: 1px;
    z-index: 2;
}

.badge-sale { background-color: #d9534f; }

.product-img-box {
    height: 320px;
    background-color: var(--light-gray);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--medium-gray);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.product-img-box::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.03);
    opacity: 0;
    transition: opacity 0.3s;
}
.product-card:hover .product-img-box::before { opacity: 1; }

.product-details {
    padding: 30px 25px;
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
}

.product-price {
    font-size: 18px;
    font-weight: 300;
    margin-bottom: 25px;
    color: var(--dark-gray);
}

.product-details .btn { width: 100%; margin-top: auto; }

.catalog-section {
    background-color: var(--light-gray);
    padding-bottom: 90px;
    margin-top: 90px;
    padding-top: 1px;
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px; 
    padding: 0 5%;
}

.catalog-item {
    position: relative;
    height: 450px;
    background-color: var(--black);
    overflow: hidden;
    cursor: pointer;
}

.catalog-item-bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover;
    background-position: center;
    filter: grayscale(100%);
    transition: transform 0.8s ease, filter 0.8s ease;
}

.catalog-item:hover .catalog-item-bg {
    transform: scale(1.05);
    filter: grayscale(80%);
}

.catalog-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9), rgba(0,0,0,0.2));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    opacity: 0;
    transition: opacity 0.4s ease;
    color: var(--white);
    text-align: center;
    padding: 40px 20px;
}

.catalog-item:hover .catalog-overlay { opacity: 1; }

.catalog-overlay h3 {
    font-size: 22px;
    font-weight: 300;
    margin-bottom: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    transform: translateY(20px);
    transition: transform 0.4s ease;
}

.catalog-item:hover .catalog-overlay h3 { transform: translateY(0); }

.catalog-overlay p {
    font-size: 13px;
    color: #ddd;
    margin-bottom: 20px;
    transform: translateY(20px);
    transition: transform 0.4s ease 0.1s;
}

.catalog-item:hover .catalog-overlay p { transform: translateY(0); }

.main-footer {
    background-color: var(--black);
    color: var(--white);
    padding: 80px 5% 20px;
    margin-top: 80px;
}

.footer-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-col { flex: 1; min-width: 220px; }

.footer-logo {
    margin-bottom: 25px;
    display: inline-block;
}

.footer-logo a {
    display: block;
    height: 90px;
    background-color: var(--white);
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
    transition: transform 0.3s ease;
}

.footer-logo a:hover {
    transform: translateY(-5px);
}

.footer-logo svg {
    height: 100%;
    width: auto;
    object-fit: contain;
}

.footer-about {
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.8;
    margin-bottom: 30px;
    font-weight: 300;
}

.social-links { display: flex; gap: 15px; }

.social-links a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--medium-gray);
    color: var(--white);
    transition: all 0.3s;
}

.social-links a:hover {
    border-color: var(--white);
    background-color: var(--white);
    color: var(--black);
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 30px;
    position: relative;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 40px;
    height: 1px;
    background-color: var(--medium-gray);
}

.footer-col ul li { margin-bottom: 15px; }
.footer-col ul li a {
    font-size: 14px;
    color: var(--medium-gray);
    transition: color 0.3s, padding-left 0.3s;
    font-weight: 300;
}
.footer-col ul li a:hover { color: var(--white); padding-left: 5px; }

.footer-col p {
    font-size: 14px;
    color: var(--medium-gray);
    margin-bottom: 15px;
    line-height: 1.6;
    font-weight: 300;
}

.footer-col p strong {
    color: var(--white);
    font-weight: 500;
    display: block;
    margin-bottom: 5px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-bottom {
    border-top: 1px solid #222;
    padding-top: 25px;
    text-align: center;
    font-size: 12px;
    color: var(--medium-gray);
    display: flex;
    flex-direction: column;
    gap: 15px;
    font-weight: 300;
}

.footer-bottom a { color: var(--medium-gray); transition: color 0.3s; }
.footer-bottom a:hover { color: var(--white); }

.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(0,0,0,0.8);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-box {
    background-color: var(--white);
    width: 100%;
    max-width: 450px;
    padding: 50px 40px;
    position: relative;
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    cursor: pointer;
    color: var(--medium-gray);
    transition: color 0.3s;
    font-weight: 300;
}

.close-modal:hover { color: var(--black); }

.modal-box h2 {
    font-size: 24px;
    font-weight: 300;
    margin-bottom: 30px;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding-bottom: 15px;
}

.form-group { margin-bottom: 25px; }
.form-group label {
    display: block; font-size: 11px; text-transform: uppercase;
    letter-spacing: 1px; margin-bottom: 8px; color: var(--dark-gray); font-weight: 600;
}
.form-group input {
    width: 100%; padding: 15px; border: 1px solid var(--border-color);
    background-color: var(--light-gray); font-family: 'Montserrat', sans-serif;
    font-size: 14px; outline: none; transition: all 0.3s;
}
.form-group input:focus { border-color: var(--black); background-color: var(--white); box-shadow: 0 0 0 1px var(--black); }

.modal-footer { margin-top: 25px; text-align: center; font-size: 13px; color: var(--medium-gray); }
.modal-footer a { color: var(--black); font-weight: 600; text-decoration: none; border-bottom: 1px solid var(--black); padding-bottom: 2px; cursor: pointer; transition: opacity 0.3s; }
.modal-footer a:hover { opacity: 0.7; }

/* Mobil */
.menu-toggle { display: none; cursor: pointer; color: var(--black); }
.menu-toggle svg { width: 28px; height: 28px; }

@media (max-width: 992px) {
    header { flex-wrap: wrap; padding: 15px 5%; }
    .logo a { height: 50px; }
    .menu-toggle { display: block; }
    #navMenu, #headerActions {
        display: none; width: 100%; flex-direction: column; align-items: center; gap: 15px;
    }
    #navMenu.active, #headerActions.active { display: flex; animation: fadeInDown 0.3s ease; }
    #navMenu { margin-top: 20px; padding-bottom: 15px; margin-bottom: 20px; border-bottom: 1px solid var(--border-color); }
    nav ul { flex-direction: column; text-align: center; gap: 20px; width: 100%; }
    .separator { display: none; }
    #navMenu { padding-bottom: 20px !important; }
    #headerActions .btn { margin-left: 0 !important; width: 100%; max-width: 300px; }
    .hero h1 { font-size: 38px; }
    .hero h2 { font-size: 16px; }
    .carousel-wrapper { padding: 0 45px; }
    .slider-btn { width: 35px; height: 35px; }
    .product-card { flex: 0 0 280px; }
    .product-img-box { height: 280px; }
    .hero { background-attachment: scroll; }
}
/* --- LOGO ÖLÇEKLENDİRME --- */
.logo a {
    display: flex;
    align-items: center;
    height: 75px; /* keep existing */
    transition: height 0.4s ease;
}

.logo-img { /* new class */
    height: 100%;
    width: auto;
}

.preloader-logo-img { /* new class */
    width: 100%;
    height: auto;
}

.footer-logo-img { /* new class */
    height: 100%;
    width: auto;
    object-fit: contain; /* existing footer-logo svg style */
}