/* Part Manual Site - Partsouq-style layout */
:root {
    --header-bg: #1a2332;
    --header-text: #fff;
    --main-title-color: #2c3e50;
    --body-bg: #f5f6f8;
    --card-bg: #fff;
    --card-border: #e0e0e0;
    --search-btn: #28a745;
    --search-btn-hover: #218838;
    --link-color: #0066c0;
    --link-red: #c0392b;
    --footer-bg: #1a2332;
    --footer-text: #bdc3c7;
    --tab-active: #28a745;
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

* {
    box-sizing: border-box;
}
body {
    margin: 0;
    font-family: var(--font-main);
    font-size: 15px;
    line-height: 1.5;
    color: #333;
    background: var(--body-bg);
}
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hesabım sayfalarında sol profil menüsü – profesyonel görünüm */
.hesabim-layout {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    margin-top: 16px;
}
.hesabim-menu {
    width: 220px;
    flex-shrink: 0;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 20px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.hesabim-menu-title {
    padding: 0 20px 16px;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.02em;
    color: #64748b;
    text-transform: uppercase;
    border-bottom: 1px solid var(--card-border);
    margin-bottom: 4px;
}
.hesabim-menu-nav,
.hesabim-menu-footer {
    padding: 8px 0;
}
.hesabim-menu-nav a,
.hesabim-menu-footer a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: #334155;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.2s, color 0.2s;
}
.hesabim-menu-nav a i,
.hesabim-menu-footer a i {
    width: 20px;
    text-align: center;
    opacity: 0.85;
}
.hesabim-menu-nav a:hover,
.hesabim-menu-footer a:hover {
    background: #f8fafc;
    color: var(--search-btn);
}
.hesabim-menu-nav a.active {
    background: linear-gradient(90deg, rgba(40, 167, 69, 0.12) 0%, transparent 100%);
    color: var(--search-btn);
    font-weight: 600;
    border-left: 3px solid var(--search-btn);
    padding-left: 17px;
}
.hesabim-menu-footer {
    border-top: 1px solid var(--card-border);
    margin-top: 8px;
    padding-top: 12px;
}
.hesabim-menu-footer a {
    color: #64748b;
    font-weight: 500;
}
.hesabim-menu-footer a:hover {
    color: #dc2626;
}
.hesabim-content {
    flex: 1;
    min-width: 0;
}

/* Hesabım özet – 3 büyük grid kart */
.hesabim-ozet-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.hesabim-ozet-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    padding: 32px 24px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    text-decoration: none;
    color: #333;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.hesabim-ozet-card:hover {
    transform: translateY(-4px);
    border-color: var(--search-btn);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}
.hesabim-ozet-icon {
    font-size: 3.5rem;
    color: var(--search-btn);
    margin-bottom: 16px;
}
.hesabim-ozet-label {
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
}
@media (max-width: 768px) {
    .hesabim-ozet-grid {
        grid-template-columns: 1fr;
    }
}

/* Header – iki şerit (üst koyu, alt beyaz) */
.site-header {
    color: #333;
    overflow: visible;
}
.header-bar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

/* Üst bar: koyu gri */
.header-bar--top {
    background: #374151;
    padding: 8px 0;
    font-size: 13px;
}
.header-bar--top .header-bar-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.header-bar--top .header-social{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}
.header-bar--top .header-account-wrap{
    margin-left: auto;
}
.header-util-link {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.header-util-link:hover { color: #fff; }
.header-util-link .fa-chevron-right { font-size: 10px; }

.header-social {
    display: flex;
    align-items: center;
    gap: 4px;
}
.header-social-item {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    font-size: 12px;
    border-radius: 4px;
    transition: opacity 0.2s;
}
.header-social-item i{
    color:#fff;
}
.header-social-item:hover { opacity: 0.9; }
.header-social-item:nth-child(1) { background: #1877f2; }
.header-social-item:nth-child(2) { background: #000; }
.header-social-item:nth-child(3) { background: #0a66c2; }
.header-social-item:nth-child(4) { background: linear-gradient(45deg, #f09433, #e1306c); }
.header-social-item:nth-child(5) { background: #e53e3e; }

.header-account-wrap {
    display: flex;
    align-items: center;
    gap: 14px;
}
.header-btn-account {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: #eab308;
    color: #1e293b;
    font-weight: 600;
    font-size: 13px;
    text-decoration: none;
    border-radius: 6px;
    border: none;
    cursor: pointer;
}
.header-btn-account:hover {
    background: #facc15;
    color: #1e293b;
}
.header-cart {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 36px;
    color: #fff;
    text-decoration: none;
    font-size: 18px;
}
.header-cart:hover { color: #eab308; }
.header-cart-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: #22c55e;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Sepet hover dropdown – profesyonel kart */
.header-cart-wrap {
    position: relative;
}
.header-cart-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 10px;
    min-width: 320px;
    max-width: 380px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.08);
    z-index: 1000;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.06);
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}
.header-cart-wrap:hover .header-cart-dropdown {
    display: block;
    opacity: 1;
    transform: translateY(0);
}
.header-cart-dropdown-arrow {
    position: absolute;
    top: -6px;
    right: 18px;
    width: 12px;
    height: 12px;
    background: #fff;
    border-left: 1px solid rgba(0,0,0,0.06);
    border-top: 1px solid rgba(0,0,0,0.06);
    transform: rotate(45deg);
}
.header-cart-dropdown-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid #e2e8f0;
}
.header-cart-dropdown-title {
    font-size: 15px;
    font-weight: 700;
    color: #0f172a;
    letter-spacing: -0.02em;
}
.header-cart-dropdown-count {
    font-size: 12px;
    color: #64748b;
    font-weight: 500;
}
.header-cart-dropdown-list {
    list-style: none;
    margin: 0;
    padding: 12px 0;
    max-height: 240px;
    overflow-y: auto;
}
.header-cart-dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 18px;
    border-bottom: 1px solid #f1f5f9;
    transition: background 0.15s ease;
}
.header-cart-dropdown-item:hover {
    background: #f8fafc;
}
.header-cart-item-thumb {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 8px;
    overflow: hidden;
    background: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
}
.header-cart-item-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.header-cart-item-thumb-placeholder {
    font-size: 1.25rem;
    color: #cbd5e1;
}
.header-cart-item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
    flex: 1;
}
.header-cart-item-name {
    font-size: 13px;
    font-weight: 600;
    color: #1e293b;
    line-height: 1.35;
}
.header-cart-item-meta {
    font-size: 12px;
    color: #64748b;
}
.header-cart-item-line-total {
    font-size: 13px;
    font-weight: 700;
    color: #0f172a;
    flex-shrink: 0;
}
.header-cart-dropdown-footer {
    padding: 14px 18px;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
}
.header-cart-dropdown-subtotal {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 13px;
    color: #475569;
}
.header-cart-dropdown-subtotal strong {
    font-size: 16px;
    color: #0f172a;
}
.header-cart-dropdown-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 16px;
    background: linear-gradient(180deg, #f59e0b 0%, #d97706 100%);
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    border-radius: 8px;
    text-decoration: none;
    transition: box-shadow 0.2s ease, transform 0.05s ease;
}
.header-cart-dropdown-btn:hover {
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.45);
}
.header-cart-dropdown-btn:active {
    transform: scale(0.98);
}
.header-cart-dropdown-btn--secondary {
    background: linear-gradient(180deg, #64748b 0%, #475569 100%);
}
.header-cart-dropdown-btn--secondary:hover {
    box-shadow: 0 4px 14px rgba(71, 85, 105, 0.35);
}
.header-cart-dropdown-empty {
    padding: 28px 24px;
    text-align: center;
}
.header-cart-dropdown-empty i {
    font-size: 2.5rem;
    color: #cbd5e1;
    margin-bottom: 12px;
    display: block;
}
.header-cart-dropdown-empty p {
    margin: 0 0 14px;
    font-size: 14px;
    color: #64748b;
    font-weight: 500;
}

/* Alt bar: beyaz, logo + menü + arama – aşağı kaydırınca sabit */
.header-bar--main {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #fff;
    padding: 14px 0;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.header-logo {
    display: flex;
    align-items: center;
}
.header-logo img {
    height: 42px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
}
.header-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}
.header-nav a {
    color: #1e293b;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.header-nav a:hover { color: #eab308; }

.header-search {
    display: flex;
    align-items: stretch;
    border-radius: 6px;
    overflow: visible;
    border: 1px solid #e5e7eb;
    position: relative;
}
.header-search-btn {
    width: 44px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #eab308;
    color: #1e293b;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}
.header-search-btn:hover { background: #facc15; }
.header-search-input {
    width: 200px;
    padding: 10px 14px;
    font-size: 14px;
    border: none;
    border-left: 1px solid #e5e7eb;
}
.header-search-input::placeholder { color: #9ca3af; }
.header-search-input:focus { outline: none; }

@media (max-width: 900px) {
    .header-bar--top .header-bar-inner { flex-wrap: wrap; justify-content: center; }
    .header-util-link { order: 1; width: 100%; text-align: center; }
    .header-social { order: 0; }
    .header-account-wrap { order: 2; }
    .header-nav { display: none; }
    .header-search-input { width: 140px; }
}

/* Genel buton sınıfları (form, sepet vb.) */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
}
.btn-login {
    background: transparent;
    color: #333;
    border: 1px solid #d1d5db;
}
.btn-signup {
    background: var(--search-btn);
    color: #fff;
}
.cart-icon {
    color: #333;
    text-decoration: none;
}
.cart-count { font-size: 12px; margin-left: 2px; }

/* Main content */
.main-content {
    padding: 32px 0 48px;
    background: #fff;
    min-height: 60vh;
}

/* Fixed header varken anchor çok aşağı kaymasın */
#catalogs{
    scroll-margin-top: calc(var(--site-header-h, 110px) + 16px);
}

/* Hero – AXCS benzeri üç kolonlu alan */
.hero-search {
    margin: 0 -20px 48px;
    padding: 40px 20px 52px;
    position: relative;
    background: #2d3338;
    border-radius: 16px;
    border: 1px solid #3b4349;
}
.hero-search-inner {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}
/* Genel kolon düzeni */
.hero-search-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.7fr) minmax(0, 1fr);
    column-gap: 32px;
    align-items: center;
}
.hero-col {
    position: relative;
}

/* Sol logo kolonu */
.hero-col-left {
    text-align: left;
}
.hero-logo-main {
    display: inline-block;
    margin-bottom: 16px;
}
.hero-logo-main img {
    max-height: 70px;
    width: auto;
    max-width: 100%;
    vertical-align: middle;
}
.hero-left-sub {
    margin: 0;
    font-size: 12px;
    color: #e5e7eb;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* Orta arama kolonları */
.hero-col-center {
    display: flex;
    flex-direction: column;
    gap: 26px;
}
.hero-row {
    color: #f9fafb;
}
.hero-heading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 0 0 8px;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.16em;
}
.hero-heading-line {
    flex-shrink: 0;
    width: 40px;
    height: 3px;
    background: #fbbf24;
    border-radius: 999px;
}
.hero-sub {
    margin: 0 0 10px;
    font-size: 12px;
    color: #e5e7eb;
    text-align: center;
}

.hero-form {
    display: flex;
    align-items: stretch;
    border-radius: 4px;
    overflow: hidden;
    background: #f9fafb;
}
.hero-input {
    flex: 1;
    min-width: 0;
    padding: 14px 18px;
    font-size: 14px;
    border: none;
    background: transparent;
    color: #111827;
}
.hero-input::placeholder {
    color: #9ca3af;
}
.hero-btn {
    flex-shrink: 0;
    padding: 0 26px;
    border: none;
    background: #22c55e;
    color: #f9fafb;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.15s;
}
.hero-btn--primary:hover {
    background: #16a34a;
    transform: translateY(-1px);
}

.hero-form--part {
    background: transparent;
}
.hero-form--part .hero-input {
    background: #f9fafb;
}
.hero-btn--icon {
    width: 46px;
    justify-content: center;
    background: #fbbf24;
    color: #111827;
    border-right: 1px solid #e5e7eb;
}
.hero-btn--icon:hover {
    background: #f59e0b;
    transform: translateY(-1px);
}

/* Sağ bilgi kolonu */
.hero-col-right {
    color: #e5e7eb;
}
.hero-right-title {
    margin: 0 0 10px;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #f9fafb;
}
.hero-right-text {
    margin: 0 0 10px;
    font-size: 13px;
    line-height: 1.6;
    color: #d1d5db;
}

@media (max-width: 992px) {
    .hero-search-inner {
        grid-template-columns: 1fr;
        row-gap: 24px;
    }
    .hero-col-left {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .hero-search {
        margin: 0 -12px 32px;
        padding: 28px 16px 36px;
    }
}

/* Eski hero kart stillerini kullanan başka yer kalmadığı için genel buton stillerine geçiş */
.hero-card-btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    background: #22c55e;
    color: #fff;
    transition: background 0.2s, transform 0.15s;
}
.hero-card-btn:hover {
    background: #16a34a;
    transform: scale(1.02);
}
.hero-card-btn--text {
    padding: 14px 22px;
    font-size: 14px;
    font-weight: 700;
    border-radius: 0 10px 10px 0;
}
.hero-card-btn--icon {
    width: 52px;
    border-radius: 0 10px 10px 0;
    font-size: 1rem;
}

@media (max-width: 768px) {
    .hero-cards {
        grid-template-columns: 1fr;
    }
    .hero-search {
        margin: 0 -12px 32px;
        padding: 36px 16px 44px;
    }
    .hero-search-brand { margin-bottom: 32px; }
}

/* Search (diğer sayfalarda kullanılan) */
.search-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}
.search-input {
    flex: 1;
    min-width: 260px;
    padding: 14px 18px;
    font-size: 16px;
    border: 1px solid var(--card-border);
    border-radius: 6px;
    background: #fff;
}
.search-input:focus {
    outline: none;
    border-color: var(--search-btn);
    box-shadow: 0 0 0 2px rgba(40, 167, 69, 0.2);
}
.btn-search {
    background: var(--search-btn);
    color: #fff;
    padding: 14px 24px;
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-search:hover { background: var(--search-btn-hover); }

/* Catalogs - Kategoriler: Shop Parts Manuals görünümü */
.catalogs-section {
    position: relative;
    margin-bottom: 48px;
}
.section-title {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--main-title-color);
    margin: 0 0 24px;
}
.section-title-catalogs {
    text-align: center;
    font-size: 1.1rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    position: relative;
}
.section-title-catalogs::before,
.section-title-catalogs::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 60px;
    height: 3px;
    background: #fbbf24;
    border-radius: 999px;
}
.section-title-catalogs::before {
    right: 100%;
    margin-right: 16px;
}
.section-title-catalogs::after {
    left: 100%;
    margin-left: 16px;
}
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px 32px;
    max-width: 100%;
    justify-items: center;
}
.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 8px 0;
    background: transparent;
    border: none;
    border-radius: 0;
    text-decoration: none;
    color: #333;
    transition: transform 0.2s ease;
}
.category-card:hover {
    transform: translateY(-4px);
}
.category-img {
    width: 100%;
    height: 190px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    overflow: hidden;
}
.category-img img {
    max-width: 100%;
    max-height: 190px;
    object-fit: contain;
}
.category-placeholder {
    width: 100%;
    height: 190px;
    background: #e8e8e8;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: #666;
}
.category-name {
    font-size: 13px;
    font-weight: 700;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.help-float {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: auto;
    height: auto;
    border-radius: 0;
    padding: 0;
    display: block;
    text-decoration: none;
    background: transparent;
    color: inherit;
    box-shadow: none;
    z-index: 100;
    line-height: 0;
    transition: transform 0.15s ease, filter 0.15s ease;
}
.help-float:hover { background: transparent; }
.help-float:hover{
    transform: translateY(-2px) scale(1.04);
    filter: drop-shadow(0 8px 16px rgba(0,0,0,0.18));
}
.help-float img{
    display:block;
}

/* Breadcrumb */
.breadcrumb { margin-bottom: 16px; font-size: 14px; color: #666; }
.breadcrumb a { color: var(--link-color); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* Ürün listesi (katalog sayfası) */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}
.product-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.product-card:hover {
    transform: scale(1.02);
    border-color: var(--search-btn);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.product-img {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
}
.product-img img { max-width: 100%; max-height: 100%; object-fit: contain; }
.product-placeholder {
    width: 80px;
    height: 80px;
    background: #e8e8e8;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #999;
}
.product-name { font-size: 14px; font-weight: 500; text-align: center; }

/* Ürün detay + parça tablosu */
.product-detail-header {
    display: grid;
    grid-template-columns: minmax(220px, 260px) minmax(0, 2fr);
    gap: 40px;
    margin-bottom: 32px;
    align-items: flex-start;
}
.product-detail-left {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}
.product-detail-img {
    max-width: 260px;
    max-height: 260px;
    object-fit: contain;
    border-radius: 8px;
    border: 1px solid var(--card-border);
    padding: 12px;
    background: #fff;
}
.product-detail-img-placeholder {
    width: 260px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #d1d5db;
}
.product-detail-main {
    padding-left: 0;
}
.product-detail-main .section-title {
    margin: 0 0 10px 0;
}
.product-detail-code {
    margin: 0 0 10px 0;
    font-size: 14px;
    color: #475569;
}
.product-detail-meta {
    margin-bottom: 16px;
    font-size: 14px;
    color: #4b5563;
}
.product-detail-meta dt {
    font-weight: 600;
    display: inline-block;
    min-width: 80px;
}
.product-detail-meta dd {
    margin: 0 0 4px;
}
.product-buy-box {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--card-border);
}
.product-buy-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}
.product-buy-form .product-qty-row {
    margin-bottom: 0;
}
.product-buy-stock {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    padding: 8px 14px;
    border-radius: 999px;
    width: fit-content;
}
.product-buy-stock i {
    font-size: 1.1em;
}
.product-buy-stock--in-stock {
    background: rgba(34, 197, 94, 0.12);
    color: #15803d;
}
.product-buy-stock--in-stock i {
    color: #22c55e;
}
.product-buy-stock--out-of-stock {
    background: rgba(239, 68, 68, 0.12);
    color: #b91c1c;
}
.product-buy-stock--out-of-stock i {
    color: #ef4444;
}
.product-buy-price {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}
.product-qty-row {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--card-border);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 10px;
}
.qty-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: #f3f4f6;
    cursor: pointer;
    font-size: 16px;
}
.qty-input {
    width: 50px;
    text-align: center;
    border: none;
    font-size: 14px;
}
.qty-input:focus {
    outline: none;
}
.product-add-main {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: 999px;
    border: none;
    background: #f59e0b;
    color: #111827;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    gap: 8px;
}
.product-add-main:hover {
    background: #fbbf24;
}

.product-detail-cart {
    border: 1px solid var(--card-border);
    padding: 12px 14px;
    background: #f9fafb;
    border-radius: 4px;
    font-size: 13px;
}
.product-cart-title {
    margin: 0 0 10px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.14em;
}
.product-cart-list {
    list-style: none;
    margin: 0 0 10px;
    padding: 0;
}
.product-cart-list li {
    margin-bottom: 6px;
}
.product-cart-name {
    font-weight: 600;
}
.product-cart-meta {
    color: #6b7280;
}
.product-cart-subtotal {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    margin-bottom: 10px;
}
.product-cart-actions .btn {
    width: 100%;
    text-align: center;
}
.product-cart-empty {
    margin: 0;
    color: #6b7280;
}
.parts-heading {
    font-size: 1.1rem;
    margin: 0 0 12px;
}
.parts-table-wrap { overflow-x: auto; margin-bottom: 24px; }
.parts-table { width: 100%; border-collapse: collapse; }
.parts-table th, .parts-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--card-border); }
.parts-table th { background: var(--body-bg); font-weight: 600; font-size: 12px; color: #666; }
.part-thumb { max-width: 48px; max-height: 48px; object-fit: contain; border-radius: 4px; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-danger { background: #dc2626; color: #fff; }
.btn-danger:hover { filter: brightness(1.1); }
.cart-total { font-size: 1.1rem; margin: 16px 0; }

/* Sepet boş – profesyonel boş durum */
.cart-empty {
    max-width: 480px;
    margin: 32px auto 48px;
    padding: 48px 32px;
    text-align: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.cart-empty-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--body-bg);
    border-radius: 50%;
    color: #adb5bd;
    font-size: 2rem;
}
.cart-empty-title {
    margin: 0 0 12px;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--main-title-color);
}
.cart-empty-desc {
    margin: 0 0 28px;
    font-size: 15px;
    color: #64748b;
    line-height: 1.5;
}
.cart-empty-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}
.btn-empty-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 14px;
}
.btn-outline {
    background: transparent;
    color: var(--search-btn);
    border: 2px solid var(--search-btn);
}
.btn-outline:hover {
    background: rgba(40, 167, 69, 0.08);
}

/* Arama sonuçları - filtre (Kategori / Ürün) */
.search-filter-cell {
    font-size: 13px;
    color: #555;
    white-space: nowrap;
}
.search-filter-cat { font-weight: 600; color: var(--main-title-color); }
.search-filter-sep { margin: 0 4px; color: #999; }
.search-filter-product { color: #666; }
.search-results-table .btn-sm { margin: 0 2px; }

/* Parça arama sonuçları – AXCS tarzı liste */
.search-suggestions {
    max-width: 520px;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--card-border);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    background: #fff;
}
.search-suggestion-item {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr) auto;
    gap: 12px;
    padding: 10px 14px;
    text-decoration: none;
    color: inherit;
    border-bottom: 1px solid var(--card-border);
    align-items: center;
}
.search-suggestion-item:last-child {
    border-bottom: none;
}
.search-suggestion-item:hover {
    background: #f9fafb;
}
.search-suggestion-thumb img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    border-radius: 4px;
    border: 1px solid var(--card-border);
}
.search-suggestion-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 4px;
    color: #111827;
}
.search-suggestion-meta {
    font-size: 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.search-suggestion-stock {
    font-weight: 600;
}
.search-suggestion-stock.in-stock {
    color: #16a34a;
}
.search-suggestion-stock.out-of-stock {
    color: #dc2626;
}
.search-suggestion-sku {
    color: #111827;
}

/* Arama sayfası (Enter ile gidilen) – görseldeki gibi */
.search-page-head {
    text-align: center;
    margin: 22px 0 18px;
}
.search-page-title {
    font-size: 13px;
    letter-spacing: 0.08em;
    font-weight: 700;
    color: #111827;
}
.search-page-query {
    margin-top: 6px;
    font-size: 20px;
    font-weight: 800;
    color: #111827;
}
.search-page-count {
    margin-top: 10px;
    font-size: 13px;
    color: #6b7280;
}

.search-results-list {
    max-width: 980px;
    margin: 0 auto 18px;
    border-top: 1px solid var(--card-border);
}
.search-result-item {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr) 180px;
    gap: 18px;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--card-border);
}
.search-result-thumb img {
    width: 92px;
    height: 92px;
    object-fit: contain;
    border: 1px solid var(--card-border);
    border-radius: 4px;
    background: #fff;
}
.search-result-name {
    display: inline-block;
    text-decoration: none;
    color: #111827;
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 4px;
}
.search-result-name:hover { text-decoration: underline; }
.search-result-sku {
    font-size: 12px;
    color: #6b7280;
    margin-bottom: 4px;
}
.search-result-stock {
    font-size: 12px;
    font-weight: 600;
}
.search-result-stock.in-stock { color: #16a34a; }
.search-result-stock.out-of-stock { color: #dc2626; }
.search-result-buy {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: center;
    gap: 6px;
}
.search-result-price {
    font-size: 15px;
    font-weight: 700;
    color: #111827;
}
.search-result-add {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 22px;
    background: #22c55e;
    color: #fff;
    text-decoration: none;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    gap: 6px;
    box-shadow: 0 6px 18px rgba(34, 197, 94, 0.4);
    transition: background 0.18s ease, box-shadow 0.18s ease, transform 0.1s ease;
}
.search-result-add:hover {
    background: #16a34a;
    box-shadow: 0 10px 24px rgba(22, 163, 74, 0.5);
    transform: translateY(-1px);
}

.search-result-add--disabled{
    background:#dc2626;
    box-shadow:none;
    transform:none !important;
    cursor:not-allowed;
    opacity:0.95;
}
.search-result-add--disabled:hover{
    background:#dc2626;
    box-shadow:none;
    transform:none;
}

.search-result-add i {
    font-size: 14px;
}

.search-pagination {
    display: flex;
    gap: 10px;
    justify-content: center;
    align-items: center;
    margin: 10px 0 26px;
}
.search-page-link {
    text-decoration: none;
    color: #111827;
    font-size: 13px;
    padding: 6px 6px;
}
.search-page-link.active {
    color: #f59e0b;
    font-weight: 800;
}

/* Hero içi arama için konumlandırma */
.hero-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 6px;
    z-index: 200;
}

.header-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 4px;
    z-index: 300;
}

/* How to order */
.how-to-section {
    margin-bottom: 40px;
}
.section-intro {
    color: #555;
    margin: 0;
    max-width: 640px;
}

/* About tabs */
.about-section {
    margin-bottom: 24px;
}
.about-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--card-border);
}
.tab-btn {
    padding: 12px 18px;
    font-size: 14px;
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -1px;
}
.tab-btn:hover { color: #333; }
.tab-btn.active {
    color: var(--tab-active);
    font-weight: 600;
    border-bottom-color: var(--tab-active);
}
.tab-panels { padding: 0; }
.tab-panel {
    display: none;
    padding: 8px 0;
}
.tab-panel.active { display: block; }
.tab-panel p {
    margin: 0 0 12px;
    color: #555;
}
.tab-panel p:last-child { margin-bottom: 0; }

/* Hesabım / Profil – profesyonel form ve kartlar */
.account-section { margin-bottom: 32px; }
.account-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 28px 32px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.account-message {
    padding: 14px 20px;
    background: #ecfdf5;
    color: #047857;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid #a7f3d0;
}
.account-subtitle {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #64748b;
    text-transform: uppercase;
    margin: 0 0 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--card-border);
}
.account-subtitle + .account-subtitle { margin-top: 32px; padding-top: 4px; }
.account-form .form-group { margin-bottom: 20px; }
.account-form label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 500;
    color: #475569;
}
.account-input {
    width: 100%;
    max-width: 400px;
    padding: 12px 14px;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    font-size: 15px;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.account-input:focus {
    outline: none;
    border-color: var(--search-btn);
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.12);
}
.account-input:disabled {
    background: #f1f5f9;
    color: #64748b;
}
.account-form .btn {
    margin-top: 12px;
    padding: 12px 24px;
    font-weight: 600;
}
.account-back {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--card-border);
}
.account-back a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #64748b;
    text-decoration: none;
    font-weight: 500;
}
.account-back a:hover { color: var(--search-btn); }

/* Profil sayfası – profesyonel görünüm */
.profile-alert {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}
.profile-alert--success {
    background: #ecfdf5;
    color: #047857;
    border: 1px solid #a7f3d0;
}
.profile-alert--error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}
.profile-alert i { font-size: 1.25rem; }

.profile-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 28px 32px;
    margin-bottom: 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.profile-card--section {
    margin-top: 28px;
    padding-top: 28px;
    border-top: 1px dashed var(--card-border);
}
.profile-card-head {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}
.profile-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(40, 167, 69, 0.1);
    color: var(--search-btn);
    border-radius: 10px;
    font-size: 1.25rem;
    flex-shrink: 0;
}
.profile-card-icon--lock {
    background: #f1f5f9;
    color: #64748b;
}
.profile-card-title {
    margin: 0 0 4px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--main-title-color);
}
.profile-card-desc {
    margin: 0;
    font-size: 13px;
    color: #64748b;
}

.profile-form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 24px;
}
.profile-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.profile-label {
    font-size: 13px;
    font-weight: 500;
    color: #475569;
}
.profile-input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    font-size: 15px;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.profile-input:focus {
    outline: none;
    border-color: var(--search-btn);
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.12);
}
.profile-input:disabled {
    background: #f8fafc;
    color: #64748b;
    cursor: not-allowed;
}
.profile-input::placeholder {
    color: #94a3b8;
}

.profile-form-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--card-border);
}
.profile-submit {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-weight: 600;
}
.profile-link-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #64748b;
    text-decoration: none;
    font-weight: 500;
}
.profile-link-back:hover { color: var(--search-btn); }

@media (max-width: 640px) {
    .profile-form-grid {
        grid-template-columns: 1fr;
    }
}

.btn-secondary {
    background: #475569;
    color: #fff;
}
.btn-secondary:hover { filter: brightness(1.1); }

/* Footer */
.site-footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 40px 0 24px;
    margin-top: 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 32px;
    margin-bottom: 28px;
}
.footer-col h4 {
    color: #fff;
    font-size: 14px;
    margin: 0 0 12px;
    font-weight: 600;
}
.footer-col ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.footer-col li { margin-bottom: 8px; }
.footer-col a {
    color: var(--footer-text);
    text-decoration: none;
    font-size: 14px;
}
.footer-col a:hover { color: #fff; }
.footer-social {
    display: flex;
    gap: 12px;
}
.footer-social a {
    color: var(--footer-text);
    font-size: 18px;
}
.footer-social a:hover { color: #fff; }
.footer-payment {
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
}
.payment-label {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
}
.payment-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.pay-logo {
    font-size: 11px;
    padding: 4px 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
}
.footer-bottom {
    padding-top: 16px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 13px;
    color: rgba(255,255,255,0.6);
}
.footer-bottom p { margin: 4px 0; }
.company-name { font-size: 12px; }

/* Part modals / parça kataloğu sayfası */
.part-modal-page .part-modal-header { margin-bottom: 24px; }
.part-modal-product { display: flex; gap: 24px; align-items: flex-start; flex-wrap: wrap; }
.part-modal-img { max-width: 200px; max-height: 200px; object-fit: contain; border-radius: 8px; border: 1px solid var(--card-border); padding: 12px; background: #fff; }
.part-modal-img-placeholder { width: 200px; height: 160px; display: flex; align-items: center; justify-content: center; font-size: 2.5rem; color: #d1d5db; }
.part-modal-info { flex: 1; min-width: 200px; }
.part-modal-title { margin: 0 0 8px; font-size: 1.5rem; }
.part-modal-desc { margin: 0; color: #64748b; font-size: 14px; }
.part-modal-parts-title { margin: 0 0 12px; font-size: 1.1rem; }
.part-modal-table-wrap { overflow-x: auto; }
.part-modal-table { width: 100%; border-collapse: collapse; }
.part-modal-table th, .part-modal-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--card-border); }
.part-modal-table th { background: var(--body-bg); font-weight: 600; font-size: 12px; color: #666; }
.part-modal-thumb { max-width: 48px; max-height: 48px; object-fit: contain; border-radius: 4px; }
.part-modal-empty { color: #64748b; margin: 0; }
.part-modal-drawing-section { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--card-border); }
.part-modal-drawing-hint { color: #64748b; font-size: 14px; margin: 0 0 12px 0; }
.part-modal-drawing-wrap { max-width: 100%; overflow: auto; background: #f8fafc; border-radius: 8px; padding: 16px; }
.part-modal-drawing-wrap .part-modal-drawing-svg { max-width: 100%; height: auto; display: block; }
.part-modal-drawing-img { max-width: 100%; height: auto; display: block; }
.part-modal-table tr.drawing-highlight { background: rgba(34, 197, 94, 0.2); outline: 2px solid #22c55e; outline-offset: 2px; }

.part-modal-pdf-section { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--card-border); }
.part-modal-pdf-hint { color: #64748b; font-size: 14px; margin: 0 0 16px 0; }
.pdf-download-link { color: var(--link-color, #2563eb); font-weight: 500; }
.pdf-flipbook-wrap { margin: 24px 0; width: 100%; max-width: min(1100px, 96vw); margin-left: auto; margin-right: auto; }
.pdf-flipbook-wrap ._df_book { width: 100%; min-height: 560px; }
/* DearFlip toolbar'ı PDF'in üstüne taşı */
.pdf-flipbook-wrap .df-container .df-ui-controls { bottom: auto !important; top: 10px !important; }
.pdf-flipbook-wrap .df-container .df-ui-more .more-container,
.pdf-flipbook-wrap .df-container .df-ui-search .search-container { bottom: auto !important; margin-bottom: 0 !important; margin-top: 8px !important; top: 100% !important; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
.pdf-flipbook-wrap .df-container .df-ui-more .more-container:before,
.pdf-flipbook-wrap .df-container .df-ui-search .search-container:before { border-top-color: transparent; border-bottom-color: #eee; bottom: auto; top: -14px; }
.pdf-toolbar { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 10px 16px; margin-bottom: 12px; background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%); border: 1px solid var(--card-border); border-radius: 10px; max-width: 320px; margin-left: auto; margin-right: auto; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }
.pdf-toolbar-label { font-size: 13px; font-weight: 600; color: #475569; margin-right: 4px; }
.pdf-zoom-btn { width: 36px; height: 36px; border: 1px solid #e2e8f0; border-radius: 8px; background: #fff; color: #475569; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 14px; transition: background 0.2s, border-color 0.2s, color 0.2s; }
.pdf-zoom-btn:hover:not(:disabled) { background: #f1f5f9; border-color: #cbd5e1; color: #0f172a; }
.pdf-zoom-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.pdf-zoom-level { min-width: 48px; font-size: 13px; font-weight: 600; color: #334155; text-align: center; }
.pdf-viewer-wrap { display: flex; align-items: flex-start; justify-content: center; gap: 12px; flex-wrap: wrap; margin: 24px 0; min-height: 400px; width: 100%; }
.pdf-viewport-wrapper { display: inline-block; overflow: auto; max-width: min(1100px, 96vw); max-height: 78vh; border: none; border-radius: 8px; cursor: grab; scrollbar-width: none; -ms-overflow-style: none; vertical-align: top; }
.pdf-viewport-wrapper::-webkit-scrollbar { display: none; }
.pdf-viewport-wrapper:active { cursor: grabbing; }
.pdf-viewport-wrapper.panning { cursor: grabbing; }
.pdf-viewport { overflow: visible; padding: 0; margin: 0; min-width: 0; min-height: 0; }
.pdf-book-spread { display: flex; flex-direction: row; flex-wrap: nowrap; align-items: stretch; justify-content: flex-start; margin: 0; padding: 0; width: max-content; }
.pdf-page-wrap { background: #fff; overflow: hidden; box-shadow: 0 4px 16px rgba(0,0,0,0.12); border-radius: 4px; flex-shrink: 0; margin: 0; }
.pdf-page-wrap canvas { display: block; width: 100%; height: auto; vertical-align: top; }
.pdf-page-left { border-radius: 6px 0 0 6px; }
.pdf-page-right { border-radius: 0 6px 6px 0; }
.pdf-spine { width: 10px; min-height: 360px; background: linear-gradient(90deg, #1e293b 0%, #334155 50%, #1e293b 100%); flex-shrink: 0; border-radius: 2px; }
.pdf-nav-btn { width: 48px; height: 48px; border-radius: 50%; border: 2px solid #e2e8f0; background: #fff; color: #475569; cursor: pointer; font-size: 20px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: background 0.2s, border-color 0.2s; }
.pdf-nav-btn:hover:not(:disabled) { background: #f1f5f9; border-color: #cbd5e1; color: #0f172a; }
.pdf-nav-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.pdf-status { text-align: center; font-size: 14px; color: #64748b; margin-top: 12px; }

@media (max-width: 768px) {
    .header-right { justify-content: flex-end; }
    .main-title { font-size: 1.35rem; }
    .brand-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
    .about-tabs .tab-btn { padding: 10px 12px; font-size: 13px; }
}