/* ============================================================
   MARDİN KUTU HARF VE TABELA SİSTEMLERİ — styles.css
   ============================================================ */

/* Global Vars & Reset */
:root {
    --bg-color: #121212;
    --text-color: #ffffff;
    --accent-silver: #e0e0e0;
    --accent-gold: #FFD700;
    --accent-blue: #00f2ff;
    --accent-green: #4caf50;
    --dark-overlay: rgba(0, 0, 0, 0.55);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-heading: 'Rajdhani', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ── Typography ── */
h1, h2, h3 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0;
}

h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 20px;
}

h2 {
    font-size: clamp(1.6rem, 3vw, 2.5rem);
    color: var(--accent-silver);
    margin-bottom: 10px;
}

h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

p {
    font-size: 1rem;
    color: #cccccc;
    margin-bottom: 20px;
}

/* ── Section ── */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.bg-darker {
    background-color: #0a0a0a;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(18, 18, 18, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 14px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 2vw, 1.8rem);
    font-weight: 700;
    color: var(--text-color);
    letter-spacing: 0;
    transition: var(--transition);
    white-space: nowrap;
}

.logo:hover {
    color: var(--accent-blue);
}

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    font-size: 0.95rem;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent-blue);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--accent-blue);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    padding: 5px;
    background: transparent;
    border: 0;
}

/* ── Buttons ── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 30px;
    background: transparent;
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0;
    transition: var(--transition);
    cursor: pointer;
    font-size: 0.95rem;
    text-align: center;
}

.btn-primary.small {
    padding: 8px 20px;
    font-size: 0.85rem;
}

.btn-primary:hover,
.btn-primary.glow:hover {
    background: var(--accent-blue);
    color: #000;
    box-shadow: 0 0 20px rgba(0, 242, 255, 0.4);
}

.btn-primary.glow {
    background: rgba(0, 242, 255, 0.08);
}

.btn-primary.block {
    width: 100%;
}

.btn-primary.btn-gold {
    background: var(--accent-gold);
    border-color: var(--accent-gold);
    color: #000;
    font-weight: 700;
}

.btn-primary.btn-gold:hover {
    background: #f4d84a;
    border-color: #f4d84a;
    color: #000;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.25);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    z-index: 0;
    filter: grayscale(30%) brightness(0.7);
    object-fit: cover;
}

.overlay {
    position: absolute;
    inset: 0;
    background: var(--dark-overlay);
    z-index: 1;
}

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

/* ── Animations ── */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   WHATSAPP
   ============================================================ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: #fff;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    line-height: 60px;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

/* ============================================================
   GALLERY (Projeler)
   ============================================================ */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    height: 300px;
    cursor: pointer;
    border-radius: 4px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
    transform: translateY(100%);
    transition: var(--transition);
}

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

.gallery-overlay h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.gallery-overlay p {
    color: var(--accent-blue);
    font-size: 0.85rem;
    margin: 0;
}

/* ============================================================
   ÜRÜNLER / HİZMETLER
   ============================================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.service-card {
    display: block;
    background: rgba(255, 255, 255, 0.03);
    padding: 40px 24px;
    border: 1px solid var(--glass-border);
    text-align: center;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    border-radius: 4px;
}

.service-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--accent-blue);
    box-shadow: 0 8px 30px rgba(0, 242, 255, 0.1);
}

.service-card i {
    font-size: 2.8rem;
    color: var(--accent-gold);
    margin-bottom: 18px;
    display: block;
}

.service-card h3 {
    margin-bottom: 12px;
    font-size: 1.3rem;
    color: #fff;
}

.service-card p {
    font-size: 0.9rem;
    color: #aaa;
    margin: 0;
}

/* ============================================================
   MALZEME
   ============================================================ */
.material-showcase {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.material-list {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.material-btn {
    padding: 10px 25px;
    background: transparent;
    border: 1px solid var(--accent-silver);
    color: var(--accent-silver);
    font-family: var(--font-heading);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 2px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.material-btn.active,
.material-btn:hover {
    background: var(--accent-silver);
    color: #000;
}

.material-content {
    background: rgba(255, 255, 255, 0.03);
    padding: 40px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    max-width: 800px;
    width: 100%;
}

.material-info {
    display: none;
    animation: fadeIn 0.4s ease;
}

.material-info.active {
    display: block;
}

.material-info h3 {
    font-size: 1.4rem;
    color: var(--accent-blue);
    margin-bottom: 12px;
}

.material-info p {
    color: #ccc;
    margin-bottom: 16px;
}

.material-info ul {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.material-info li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #ccc;
    font-size: 0.95rem;
}

.material-info li i {
    color: var(--accent-blue);
    font-size: 0.85rem;
    flex-shrink: 0;
}

/* ============================================================
   SAYAÇLAR
   ============================================================ */
.counter-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    text-align: center;
}

.counter-item {
    padding: 50px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    transition: var(--transition);
}

.counter-item:hover {
    border-color: var(--accent-blue);
    background: rgba(0, 242, 255, 0.04);
}

.counter-item .count {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    color: var(--accent-blue);
    line-height: 1;
    display: inline-block;
}

.counter-item .plus {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    display: inline-block;
    vertical-align: bottom;
    margin-left: 2px;
}

.counter-item p {
    margin-top: 10px;
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #888;
    margin-bottom: 0;
}

/* ============================================================
   İLETİŞİM
   ============================================================ */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.contact-info h2 {
    color: var(--text-color);
    margin-bottom: 10px;
}

.contact-info > p {
    margin-bottom: 30px;
    color: #bbb;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-item i {
    width: 40px;
    height: 40px;
    background: rgba(0, 242, 255, 0.1);
    border: 1px solid rgba(0, 242, 255, 0.3);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
    font-size: 1rem;
    flex-shrink: 0;
}

.contact-item h3 {
    font-size: 0.8rem;
    letter-spacing: 2px;
    color: var(--accent-blue);
    margin-bottom: 4px;
    text-transform: uppercase;
}

.contact-item p {
    font-size: 0.95rem;
    color: #ccc;
    margin: 0;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.78rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #888;
    font-family: var(--font-heading);
}

.form-group input,
.form-group select,
.form-group textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    padding: 12px 14px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    border-radius: 4px;
    transition: var(--transition);
    outline: none;
    width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-blue);
    background: rgba(0, 242, 255, 0.03);
}

.form-group select option {
    background: #1a1a1a;
    color: #fff;
}

.file-input {
    cursor: pointer;
    color: #aaa;
}

.contact-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 10px;
}

.contact-actions .btn-primary {
    width: 100%;
    min-height: 48px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: #080808;
    border-top: 1px solid var(--glass-border);
    padding: 30px 0;
    text-align: center;
}

.footer p {
    color: #555;
    font-size: 0.85rem;
    margin: 0;
}

/* ============================================================
   KATALOG SAYFASI
   ============================================================ */
.catalog-page {
    padding-top: 90px;
    min-height: 100vh;
}

.catalog-container {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 40px;
    padding-top: 40px;
}

.filters-sidebar {
    position: sticky;
    top: 100px;
    height: max-content;
}

.filters-sidebar h3 {
    font-size: 0.9rem;
    letter-spacing: 3px;
    color: var(--accent-blue);
    text-transform: uppercase;
    margin-bottom: 24px;
}

.filter-group {
    margin-bottom: 28px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 20px;
}

.filter-group h4 {
    font-size: 0.78rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #666;
    margin-bottom: 12px;
}

.checkbox-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.checkbox-list li label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    color: #ccc;
    transition: var(--transition);
}

.checkbox-list li label:hover {
    color: var(--accent-blue);
}

.checkbox-list input[type="checkbox"] {
    accent-color: var(--accent-blue);
    width: 14px;
    height: 14px;
}

.price-inputs {
    display: flex;
    gap: 8px;
}

.price-inputs input {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    color: #fff;
    padding: 7px 10px;
    font-size: 0.85rem;
    border-radius: 4px;
    width: 100%;
    outline: none;
    transition: var(--transition);
}

.price-inputs input:focus {
    border-color: var(--accent-blue);
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 24px;
    align-content: start;
}

.product-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.product-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 242, 255, 0.3);
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.product-badge-modern {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--accent-blue);
    color: #000;
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: 100px;
    z-index: 2;
}

.product-image {
    height: 200px;
    overflow: hidden;
    background: #1a1a1a;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.06);
}

.product-info {
    padding: 18px;
}

.product-info h3 {
    font-size: 1rem;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-info h3 a {
    color: #fff;
    transition: var(--transition);
}

.product-info h3 a:hover {
    color: var(--accent-blue);
}

.product-price {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--accent-gold);
    font-weight: 700;
    margin-bottom: 14px;
}

.product-footer {
    display: flex;
    gap: 8px;
}

.btn-buy {
    flex: 1;
    padding: 9px 12px;
    background: rgba(0,242,255,0.08);
    border: 1px solid rgba(0,242,255,0.3);
    color: var(--accent-blue);
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition);
}

.btn-buy:hover {
    background: var(--accent-blue);
    color: #000;
}

/* Admin */
.admin-btn-float {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    border: 1px solid var(--glass-border);
    color: #666;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 998;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.admin-btn-float:hover {
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.admin-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.admin-modal.active {
    display: flex;
}

.modal-content {
    background: #1a1a1a;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 36px;
    width: 90%;
    max-width: 480px;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content h2 {
    color: var(--accent-blue);
    font-size: 1.2rem;
    margin-bottom: 24px;
    letter-spacing: 2px;
}

.form-group-admin {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 14px;
}

.form-group-admin label {
    font-size: 0.75rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group-admin input,
.form-group-admin select,
.form-group-admin textarea {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--glass-border);
    color: #fff;
    padding: 9px 12px;
    font-size: 0.9rem;
    border-radius: 4px;
    outline: none;
    width: 100%;
    transition: var(--transition);
}

.form-group-admin input:focus,
.form-group-admin select:focus,
.form-group-admin textarea:focus {
    border-color: var(--accent-blue);
}

.btn-save-admin {
    width: 100%;
    padding: 12px;
    background: var(--accent-blue);
    color: #000;
    border: none;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition);
    margin-top: 8px;
}

.btn-save-admin:hover {
    background: #00d4e0;
}

/* ============================================================
   ÜRÜN DETAY SAYFASI
   ============================================================ */
.product-detail-page {
    padding: 100px 0 60px;
    min-height: 100vh;
}

.breadcrumbs {
    font-size: 0.8rem;
    color: #555;
    margin-bottom: 32px;
    font-family: var(--font-heading);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.breadcrumbs a {
    color: #555;
    transition: var(--transition);
}

.breadcrumbs a:hover {
    color: var(--accent-blue);
}

.breadcrumbs span {
    color: var(--accent-blue);
}

.product-detail-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.main-image {
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    background: #1a1a1a;
}

.main-image img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    transition: var(--transition);
}

.thumbnail-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-top: 10px;
}

.thumbnail-grid img {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0.6;
}

.thumbnail-grid img:hover,
.thumbnail-grid img.active {
    opacity: 1;
    border-color: var(--accent-blue);
}

.product-info-col h1 {
    font-size: 2rem;
    color: #fff;
    margin-bottom: 12px;
}

.product-price-large {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--accent-gold);
    font-weight: 700;
    margin-bottom: 20px;
}

.option-group {
    margin-bottom: 18px;
}

.option-group label {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #777;
    margin-bottom: 8px;
    font-family: var(--font-heading);
}

.option-select {
    width: 100%;
    padding: 11px 14px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    color: #fff;
    font-size: 0.95rem;
    border-radius: 4px;
    outline: none;
    cursor: pointer;
    transition: var(--transition);
}

.option-select:focus {
    border-color: var(--accent-blue);
}

.option-select option {
    background: #1a1a1a;
}

.secondary-actions {
    margin-top: 20px;
}

.whatsapp-order-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 20px;
    background: #25d366;
    color: #fff;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: var(--transition);
    text-decoration: none;
}

.whatsapp-order-btn:hover {
    background: #1fba59;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    color: #fff;
}

.whatsapp-order-btn i {
    font-size: 1.3rem;
}

.meta-info {
    margin-top: 18px;
    font-size: 0.82rem;
    color: #555;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-info strong {
    color: #888;
}

/* Tabs (ürün detay) */
.product-tabs-section {
    margin-top: 60px;
}

.tab-nav {
    display: flex;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 28px;
}

.tab-btn {
    padding: 12px 24px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: #666;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: -1px;
}

.tab-btn.active,
.tab-btn:hover {
    color: var(--accent-blue);
    border-bottom-color: var(--accent-blue);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.tab-content h3 {
    color: #ddd;
    margin-bottom: 12px;
}

.tab-content p,
.tab-content li {
    color: #aaa;
    font-size: 0.95rem;
}

.tab-content ul {
    padding-left: 0;
}

.tab-content li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

/* ============================================================
   KONFİGÜRATÖR
   ============================================================ */
.configurator-page .navbar {
    position: relative;
    background: rgba(15, 23, 36, 0.98) !important;
}

.config-workspace {
    display: grid;
    grid-template-columns: 320px 1fr;
    height: calc(100vh - 70px);
    overflow: hidden;
}

.config-panel {
    background: #0f1724;
    border-right: 1px solid var(--glass-border);
    padding: 24px 20px;
    overflow-y: auto;
    height: 100%;
}

.config-panel h2 {
    font-size: 1.1rem;
    color: var(--accent-blue);
    margin-bottom: 4px;
    letter-spacing: 2px;
}

.config-panel > p {
    font-size: 0.8rem;
    color: #555;
    margin-bottom: 20px;
}

.config-tabs {
    display: flex;
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 20px;
}

.config-tabs .tab-btn {
    flex: 1;
    border: none;
    border-radius: 0;
    margin: 0;
    padding: 9px;
    font-size: 0.78rem;
    border-bottom: none;
}

.config-tabs .tab-btn.active {
    background: rgba(0,242,255,0.1);
    color: var(--accent-blue);
}

hr.panel-divider {
    border: none;
    border-top: 1px solid var(--glass-border);
    margin: 18px 0;
}

.config-panel .form-group {
    margin-bottom: 14px;
}

.config-panel .form-group label {
    display: block;
    font-size: 0.72rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #555;
    margin-bottom: 6px;
    font-family: var(--font-heading);
}

.config-panel .form-group input,
.config-panel .form-group select,
.config-panel .form-group textarea {
    width: 100%;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--glass-border);
    color: #fff;
    padding: 9px 11px;
    font-size: 0.85rem;
    border-radius: 4px;
    outline: none;
    transition: var(--transition);
    font-family: var(--font-body);
}

.config-panel .form-group input:focus,
.config-panel .form-group select:focus,
.config-panel .form-group textarea:focus {
    border-color: var(--accent-blue);
}

.bg-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.bg-btn {
    padding: 4px 10px;
    font-size: 0.68rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--glass-border);
    color: #666;
    cursor: pointer;
    border-radius: 3px;
    transition: var(--transition);
}

.bg-btn.active,
.bg-btn:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: rgba(0,242,255,0.06);
}

.actions .btn-primary {
    width: 100%;
    text-align: center;
    justify-content: center;
}

.config-viewer {
    position: relative;
    background: #050a10;
    flex: 1;
}

.config-viewer canvas {
    display: block;
}

.loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--accent-blue);
    font-family: var(--font-heading);
    letter-spacing: 3px;
    text-transform: uppercase;
    font-size: 0.9rem;
    text-align: center;
}

.configurator-note {
    padding: 10px 14px;
    background: rgba(0,242,255,0.04);
    border: 1px solid rgba(0,242,255,0.15);
    border-radius: 4px;
    font-size: 0.73rem;
    color: #666;
    font-style: italic;
    line-height: 1.5;
    margin-top: 14px;
}

.help-text {
    font-size: 0.74rem;
    color: #555;
    margin-top: 5px;
    font-style: italic;
}

.text-muted {
    color: #555;
}

/* ============================================================
   RESPONSIVE — Tablet (≤1024px)
   ============================================================ */
@media (max-width: 1024px) {
    .contact-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .product-detail-container {
        grid-template-columns: 1fr;
    }

    .catalog-container {
        grid-template-columns: 1fr;
    }

    .filters-sidebar {
        position: static;
        display: flex;
        gap: 20px;
        flex-wrap: wrap;
    }

    .counter-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .config-workspace {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
        height: auto;
    }

    .config-panel {
        height: auto;
        max-height: 45vh;
        overflow-y: auto;
    }

    .config-viewer {
        min-height: 55vw;
    }
}

/* ============================================================
   RESPONSIVE — Mobil (≤768px)
   ============================================================ */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }

    .section { padding: 60px 0; }

    /* Nav */
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 65px;
        left: 0;
        width: 100%;
        background: rgba(15, 15, 15, 0.98);
        padding: 20px;
        gap: 16px;
        border-bottom: 1px solid var(--glass-border);
        z-index: 999;
    }

    .nav-links.open {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .logo {
        font-size: 1.25rem;
    }

    /* Hero */
    .hero { min-height: 100vh; }

    /* Gallery */
    .gallery-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .gallery-item { height: 200px; }

    /* Counters */
    .counter-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .counter-item { padding: 36px 20px; }
    .counter-item .count { font-size: 3rem; }

    /* Services */
    .services-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* Catalog */
    .catalog-grid {
        grid-template-columns: 1fr 1fr;
    }

    .contact-actions {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .gallery-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .catalog-grid { grid-template-columns: 1fr; }
    .material-btn { font-size: 0.85rem; padding: 8px 16px; }
}

body,
body * {
    letter-spacing: 0 !important;
}

/* Two-line brand keeps the full name readable on narrow screens. */
.logo { white-space: normal; line-height: 1.15; flex-shrink: 1; }
.logo-subtitle { display: block; font-size: 0.58em; line-height: 1.4; }
.nav-container { gap: 16px; }