/* ==========================================================================
   ER VİNÇ NAKLİYAT — 2026 PREMIUM KOYU FÜME (DARK ANTHRACITE) TASARIM SİSTEMİ
   Renk Paleti: Siyaha Yakın Koyu Füme (#12151A / #1A1E26), Er Vinç Kırmızısı (#CA2128),
   İş Güvenliği Kehribarı (#F59E0B), Parlak Çelik Beyazı (#F8FAFC)
   ========================================================================== */

:root {
    --erv-red: #CA2128;
    --erv-red-dark: #991B1B;
    --erv-red-light: rgba(202, 33, 40, 0.18);
    --erv-amber: #F59E0B;
    --erv-amber-dark: #D97706;
    --erv-dark: #0B0D11;
    --erv-bg: #12151A;
    --erv-bg-alt: #161A21;
    --erv-white: #1B1F27;
    --erv-card-hover: #222731;
    --erv-slate: #F8FAFC;
    --erv-slate-800: #E2E8F0;
    --erv-slate-700: #CBD5E1;
    --erv-slate-600: #94A3B8;
    --erv-slate-500: #94A3B8;
    --erv-border: #2A303C;
    --erv-green: #16A34A;
    --erv-whatsapp: #25D366;
    --erv-radius-sm: 8px;
    --erv-radius: 14px;
    --erv-radius-lg: 20px;
    --erv-shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.35);
    --erv-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
    --erv-shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.6);
    --erv-transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--erv-slate);
    background-color: var(--erv-bg);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================================================
   1. ÜST ACİL OPERASYON & KURUMSAL BAR (TOPBAR)
   ========================================================================== */
.erv-topbar {
    background: var(--erv-dark);
    color: #CBD5E1;
    font-size: 0.84rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    z-index: 1002;
}

.erv-topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 0;
    gap: 14px;
    flex-wrap: wrap;
}

.erv-topbar-left {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.erv-topbar-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(202, 33, 40, 0.24);
    color: #FCA5A5;
    border: 1px solid rgba(202, 33, 40, 0.5);
    padding: 4px 11px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.76rem;
    letter-spacing: 0.02em;
}

.erv-topbar-badge i {
    color: var(--erv-amber);
}

.erv-topbar-item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: #E2E8F0;
    font-weight: 500;
}

.erv-topbar-item i {
    color: var(--erv-red);
}

.erv-topbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.erv-topbar-phone {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    color: #FFFFFF;
    font-weight: 800;
    padding: 5px 12px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    white-space: nowrap;
}

.erv-topbar-phone:hover {
    background: var(--erv-red);
    border-color: var(--erv-red);
    color: #FFFFFF;
}

.erv-topbar-phone i {
    color: var(--erv-amber);
}

/* ==========================================================================
   1B. SİTE AÇILIŞ EKRANI (SPLASH LOADER)
   ========================================================================== */
.erv-loader {
    position: fixed;
    inset: 0;
    background: #0A0A0A;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 20px;
    transition: opacity 0.55s ease, visibility 0.55s ease;
}

.erv-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.erv-loader-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
}

.erv-loader-logo img {
    width: 196px;
    height: 196px;
    object-fit: contain;
    border-radius: 50%;
    background: #FFFFFF;
    padding: 4px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
    animation: ervLoaderImgIn 0.6s ease both;
}

.erv-loader-logo-text {
    font-family: 'Barlow Condensed', 'Plus Jakarta Sans', sans-serif;
    font-weight: 900;
    font-size: 46px;
    letter-spacing: 4px;
    color: #FFFFFF;
    line-height: 1;
    text-transform: uppercase;
}

.erv-loader-logo-text span {
    color: #C0392B;
}

@keyframes ervLoaderImgIn {
    from { opacity: 0; transform: scale(0.82); }
    to { opacity: 1; transform: scale(1); }
}

.erv-loader-bar {
    width: 200px;
    height: 2px;
    background: rgba(255, 255, 255, 0.12);
    position: relative;
    overflow: hidden;
}

.erv-loader-bar::after {
    content: '';
    position: absolute;
    left: -100%;
    top: 0;
    bottom: 0;
    width: 100%;
    background: #C0392B;
    animation: ervLoadBar 1.25s ease forwards;
}

@keyframes ervLoadBar {
    from { left: -100%; }
    to { left: 0%; }
}

/* ==========================================================================
   2. ANA HEADER & STICKY NAVİGASYON (KOYU FÜME TEMA)
   ========================================================================== */
.erv-header {
    background: rgba(20, 24, 31, 0.97);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--erv-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
}

.erv-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 82px;
    gap: 14px;
}

.erv-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.erv-logo img {
    height: 52px;
    width: 52px;
    border-radius: 50%;
    background: #FFFFFF;
    padding: 2px;
    object-fit: contain;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
}

.erv-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.05;
}

.erv-logo-main {
    font-family: 'Barlow Condensed', 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    font-size: 1.45rem;
    letter-spacing: 2px;
    color: #FFFFFF;
}

.erv-logo-main em {
    font-style: normal;
    color: var(--erv-red);
}

.erv-logo-sub {
    font-family: 'Barlow Condensed', 'Plus Jakarta Sans', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    color: #94A3B8;
    letter-spacing: 3.5px;
    margin-top: 2px;
}

.erv-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.erv-nav-item {
    position: relative;
}

.erv-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 13px;
    font-size: 0.9rem;
    font-weight: 700;
    color: #F1F5F9;
    border-radius: 8px;
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.erv-nav-link:hover,
.erv-nav-link.active {
    color: #FFFFFF;
    background: var(--erv-red);
}

.erv-nav-link i.fa-chevron-down {
    font-size: 0.72rem;
    opacity: 0.75;
    transition: transform 0.2s ease;
}

.erv-nav-item:hover .erv-nav-link i.fa-chevron-down {
    transform: rotate(180deg);
}

/* Dropdown Menü */
.erv-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 280px;
    background: #1B1F27;
    border-radius: var(--erv-radius);
    box-shadow: var(--erv-shadow-lg);
    border: 1px solid var(--erv-border);
    padding: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: var(--erv-transition);
    z-index: 1010;
}

.erv-dropdown-mega {
    min-width: 580px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
    padding: 14px;
}

.erv-nav-item:hover .erv-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.erv-dropdown-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 0.88rem;
    font-weight: 600;
    color: #E2E8F0;
}

.erv-dropdown-link i {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: rgba(202, 33, 40, 0.2);
    color: #FCA5A5;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.84rem;
    flex-shrink: 0;
    transition: var(--erv-transition);
}

.erv-dropdown-link:hover {
    background: #252B36;
    color: #FFFFFF;
}

.erv-dropdown-link:hover i {
    background: var(--erv-red);
    color: #FFFFFF;
}

.erv-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* Buton Bileşenleri */
.btn-erv {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 18px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.88rem;
    cursor: pointer;
    border: none;
    transition: var(--erv-transition);
    text-align: center;
    line-height: 1.2;
    white-space: nowrap;
}

.btn-erv-primary {
    background: linear-gradient(135deg, var(--erv-red), var(--erv-red-dark));
    color: #FFFFFF;
    box-shadow: 0 8px 20px rgba(202, 33, 40, 0.32);
}

.btn-erv-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(202, 33, 40, 0.45);
    color: #FFFFFF;
}

.btn-erv-dark {
    background: #252B36;
    color: #FFFFFF;
    border: 1px solid #363E4D;
}

.btn-erv-dark:hover {
    background: #303746;
    transform: translateY(-2px);
    color: #FFFFFF;
}

.btn-erv-amber {
    background: linear-gradient(135deg, var(--erv-amber), var(--erv-amber-dark));
    color: #0B0D11;
    font-weight: 800;
}

.btn-erv-amber:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(245, 158, 11, 0.35);
    color: #0B0D11;
}

.btn-erv-outline {
    background: rgba(255, 255, 255, 0.06);
    color: #FFFFFF;
    border: 1.5px solid rgba(255, 255, 255, 0.35);
}

.btn-erv-outline:hover {
    border-color: var(--erv-amber);
    background: rgba(245, 158, 11, 0.14);
    color: #FFFFFF;
}

.btn-erv-whatsapp {
    background: var(--erv-whatsapp);
    color: #FFFFFF;
}

.btn-erv-whatsapp:hover {
    background: #1EBE5D;
    color: #FFFFFF;
    transform: translateY(-2px);
}

.erv-mobile-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    border: 1px solid var(--erv-border);
    background: #252B36;
    color: #FFFFFF;
    font-size: 1.15rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ==========================================================================
   3. HERO SLIDER & HIZLI HİZMET STRİP
   ========================================================================== */
.erv-hero {
    position: relative;
    background: var(--erv-dark);
    color: #FFFFFF;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.erv-hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.7s ease, visibility 0.7s ease;
    display: flex;
    align-items: center;
}

.erv-hero-slide.active {
    opacity: 1;
    visibility: visible;
    position: relative;
    width: 100%;
    min-height: 600px;
}

.erv-hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.03);
    transition: transform 6s ease;
}

.erv-hero-slide.active .erv-hero-bg {
    transform: scale(1);
}

.erv-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11, 13, 17, 0.95) 0%, rgba(11, 13, 17, 0.82) 55%, rgba(11, 13, 17, 0.5) 100%);
}

.erv-hero-content {
    position: relative;
    z-index: 3;
    padding: 80px 0 95px;
    max-width: 800px;
}

.erv-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(202, 33, 40, 0.28);
    border: 1px solid rgba(202, 33, 40, 0.65);
    color: #FCA5A5;
    padding: 7px 15px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.erv-hero-badge i {
    color: var(--erv-amber);
}

.erv-hero-title {
    font-size: clamp(2.1rem, 4.2vw, 3.4rem);
    font-weight: 800;
    line-height: 1.14;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
    color: #FFFFFF;
}

.erv-hero-subtitle {
    font-size: 1.08rem;
    color: #CBD5E1;
    margin-bottom: 28px;
    max-width: 660px;
    line-height: 1.65;
}

.erv-hero-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.erv-hero-trust {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 34px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    flex-wrap: wrap;
}

.erv-hero-trust-item {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 0.88rem;
    color: #E2E8F0;
    font-weight: 600;
}

.erv-hero-trust-item i {
    color: var(--erv-amber);
    font-size: 1rem;
}

.erv-hero-controls {
    position: absolute;
    bottom: 28px;
    right: 40px;
    z-index: 5;
    display: flex;
    align-items: center;
    gap: 10px;
}

.erv-slider-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: rgba(15, 23, 42, 0.65);
    color: #FFFFFF;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--erv-transition);
}

.erv-slider-btn:hover {
    background: var(--erv-red);
    border-color: var(--erv-red);
}

.erv-slider-dots {
    display: flex;
    gap: 8px;
    margin: 0 8px;
}

.erv-slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.35);
    border: none;
    cursor: pointer;
    transition: var(--erv-transition);
}

.erv-slider-dot.active {
    width: 28px;
    background: var(--erv-red);
}

/* ==========================================================================
   4. SAYAÇLAR & HIZLI TEKLİF BARI
   ========================================================================== */
.erv-stats-bar {
    position: relative;
    z-index: 10;
    margin-top: -42px;
    margin-bottom: 40px;
}

.erv-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: var(--erv-white);
    border-radius: var(--erv-radius-lg);
    box-shadow: var(--erv-shadow-lg);
    border: 1px solid var(--erv-border);
    overflow: hidden;
}

.erv-stat-box {
    padding: 26px 24px;
    border-right: 1px solid var(--erv-border);
    display: flex;
    align-items: center;
    gap: 16px;
}

.erv-stat-box:last-child {
    border-right: none;
}

.erv-stat-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--erv-red-light);
    color: #FCA5A5;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}

.erv-stat-val {
    font-size: 1.65rem;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1.15;
}

.erv-stat-lbl {
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--erv-slate-500);
    margin-top: 2px;
}

/* ==========================================================================
   5. BÖLÜM BAŞLIKLARI & HİZMET VİTRİN KARTLARI
   ========================================================================== */
.erv-section {
    padding: 72px 0;
}

.erv-section-white {
    background: var(--erv-bg-alt);
}

.erv-section-dark {
    background: var(--erv-dark);
    color: #FFFFFF;
    position: relative;
    overflow: hidden;
}

.erv-section-dark::before {
    content: '';
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 480px;
    height: 480px;
    background: url('/uploads/sayfalar/kurumsal-arma.webp') center/contain no-repeat;
    opacity: 0.08;
    pointer-events: none;
    z-index: 0;
}

.erv-section-dark > .container {
    position: relative;
    z-index: 1;
}

.erv-section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 42px;
    flex-wrap: wrap;
}

.erv-section-head.center {
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.erv-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #FCA5A5;
    background: var(--erv-red-light);
    border: 1px solid rgba(202, 33, 40, 0.35);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 12px;
}

.erv-section-title {
    font-size: clamp(1.75rem, 3vw, 2.45rem);
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.erv-section-desc {
    font-size: 1rem;
    color: var(--erv-slate-600);
    max-width: 680px;
    margin-top: 10px;
}

/* Hizmet Kartları Grid (9 Ana Hizmet) */
.erv-services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.erv-service-card {
    background: var(--erv-white);
    border-radius: var(--erv-radius-lg);
    border: 1px solid var(--erv-border);
    overflow: hidden;
    box-shadow: var(--erv-shadow-sm);
    transition: var(--erv-transition);
    display: flex;
    flex-direction: column;
}

.erv-service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--erv-shadow-lg);
    border-color: rgba(202, 33, 40, 0.55);
    background: var(--erv-card-hover);
}

.erv-service-img-wrap {
    position: relative;
    height: 235px;
    overflow: hidden;
    background: #0B0D11;
}

.erv-service-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.erv-service-card:hover .erv-service-img-wrap img {
    transform: scale(1.07);
}

.erv-service-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(11, 13, 17, 0.9);
    backdrop-filter: blur(6px);
    color: var(--erv-amber);
    font-size: 0.76rem;
    font-weight: 800;
    padding: 5px 12px;
    border-radius: 8px;
    border: 1px solid rgba(245, 158, 11, 0.4);
}

.erv-service-region {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(202, 33, 40, 0.94);
    color: #FFFFFF;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 6px;
}

.erv-service-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.erv-service-title {
    font-size: 1.24rem;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 10px;
    line-height: 1.3;
}

.erv-service-title a:hover {
    color: var(--erv-amber);
}

.erv-service-desc {
    font-size: 0.92rem;
    color: var(--erv-slate-700);
    margin-bottom: 18px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.erv-service-specs-mini {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    padding: 12px;
    background: #13161C;
    border: 1px solid var(--erv-border);
    border-radius: 10px;
    margin-bottom: 18px;
    font-size: 0.78rem;
}

.erv-spec-mini-item strong {
    display: block;
    color: var(--erv-slate-500);
    font-weight: 600;
}

.erv-spec-mini-item span {
    color: #F8FAFC;
    font-weight: 800;
}

.erv-service-footer {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding-top: 14px;
    border-top: 1px solid var(--erv-border);
}

.erv-service-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 0.88rem;
    font-weight: 800;
    color: #FCA5A5;
}

.erv-service-link:hover {
    gap: 11px;
    color: var(--erv-amber);
}

.erv-service-quote-btn {
    padding: 7px 13px;
    border-radius: 8px;
    background: var(--erv-red);
    color: #FFFFFF;
    font-size: 0.8rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: var(--erv-transition);
}

.erv-service-quote-btn:hover {
    background: var(--erv-red-dark);
}

/* ==========================================================================
   6. KURUMSAL GÜVENCE & NEDEN ER VİNÇ BLOKLARI
   ========================================================================== */
.erv-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.erv-info-card {
    background: var(--erv-white);
    border: 1px solid var(--erv-border);
    border-radius: var(--erv-radius-lg);
    padding: 28px 24px;
    transition: var(--erv-transition);
}

.erv-info-card:hover {
    background: var(--erv-card-hover);
    border-color: var(--erv-red);
    transform: translateY(-4px);
}

.erv-info-icon {
    width: 54px;
    height: 54px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--erv-red), var(--erv-red-dark));
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    margin-bottom: 18px;
}

.erv-info-card h3 {
    font-size: 1.12rem;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 10px;
}

.erv-info-card p {
    font-size: 0.9rem;
    color: #CBD5E1;
    line-height: 1.6;
}

/* ==========================================================================
   7. SAHA GALERİSİ & LIGHTBOX
   ========================================================================== */
.erv-gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.erv-gallery-item {
    position: relative;
    border-radius: var(--erv-radius);
    overflow: hidden;
    height: 230px;
    background: #0B0D11;
    border: 1px solid var(--erv-border);
    cursor: pointer;
    box-shadow: var(--erv-shadow-sm);
}

.erv-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.45s ease;
}

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

.erv-gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(11, 13, 17, 0.9) 0%, rgba(11, 13, 17, 0.2) 60%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 16px;
    opacity: 0;
    transition: var(--erv-transition);
}

.erv-gallery-item:hover .erv-gallery-overlay {
    opacity: 1;
}

.erv-gallery-overlay span {
    color: #FFFFFF;
    font-size: 0.86rem;
    font-weight: 700;
}

.erv-gallery-overlay small {
    color: var(--erv-amber);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ==========================================================================
   8. İÇ SAYFA BANNER (PAGE HERO) & DETAY SAYFALARI
   ========================================================================== */
.erv-page-hero {
    position: relative;
    background: var(--erv-dark);
    color: #FFFFFF;
    padding: 64px 0;
    background-size: cover;
    background-position: center;
    overflow: hidden;
    border-bottom: 1px solid var(--erv-border);
}

.erv-page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11, 13, 17, 0.94) 0%, rgba(11, 13, 17, 0.80) 100%);
}

.erv-page-hero-inner {
    position: relative;
    z-index: 2;
}

.erv-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.84rem;
    color: #94A3B8;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.erv-breadcrumb a:hover {
    color: #FFFFFF;
}

.erv-breadcrumb span.sep {
    opacity: 0.5;
}

.erv-page-title {
    font-size: clamp(1.85rem, 3.4vw, 2.75rem);
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1.2;
}

.erv-page-subtitle {
    color: #CBD5E1;
    font-size: 1.02rem;
    max-width: 720px;
    margin-top: 10px;
}

/* Detay Sayfası 2 Kolonlu Düzen */
.erv-detail-layout {
    display: grid;
    grid-template-columns: 1fr 370px;
    gap: 34px;
    align-items: start;
}

.erv-content-card {
    background: var(--erv-white);
    border-radius: var(--erv-radius-lg);
    border: 1px solid var(--erv-border);
    padding: 34px;
    box-shadow: var(--erv-shadow-sm);
    margin-bottom: 28px;
}

.erv-prose h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: #FFFFFF;
    margin: 24px 0 12px;
}

.erv-prose h2:first-child {
    margin-top: 0;
}

.erv-prose h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #F1F5F9;
    margin: 20px 0 10px;
}

.erv-prose p {
    color: var(--erv-slate-700);
    margin-bottom: 14px;
    font-size: 0.98rem;
}

.erv-prose strong {
    color: #FFFFFF;
}

.erv-prose ul {
    list-style: none;
    margin: 14px 0 20px;
}

.erv-prose ul li {
    position: relative;
    padding-left: 26px;
    margin-bottom: 10px;
    color: var(--erv-slate-700);
}

.erv-prose ul li::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--erv-amber);
}

/* Teknik Özellikler Tablosu */
.erv-specs-table {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 16px;
}

.erv-spec-row {
    background: #13161C;
    border: 1px solid var(--erv-border);
    border-radius: 12px;
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.erv-spec-row .lbl {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--erv-slate-500);
}

.erv-spec-row .val {
    font-size: 1rem;
    font-weight: 800;
    color: #FFFFFF;
}

/* SSS (FAQ Accordion) */
.erv-faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.erv-faq-item {
    border: 1px solid var(--erv-border);
    border-radius: 12px;
    overflow: hidden;
    background: #13161C;
}

.erv-faq-q {
    width: 100%;
    padding: 16px 20px;
    background: #13161C;
    border: none;
    text-align: left;
    font-size: 0.98rem;
    font-weight: 800;
    color: #FFFFFF;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.erv-faq-q i {
    color: var(--erv-amber);
    transition: transform 0.25s ease;
}

.erv-faq-item.open .erv-faq-q i {
    transform: rotate(180deg);
}

.erv-faq-a {
    padding: 0 20px 16px;
    background: #13161C;
    color: var(--erv-slate-700);
    font-size: 0.92rem;
    display: none;
}

.erv-faq-item.open .erv-faq-a {
    display: block;
}

/* Yan Menü (Sidebar) */
.erv-sidebar-card {
    background: var(--erv-white);
    border-radius: var(--erv-radius-lg);
    border: 1px solid var(--erv-border);
    padding: 24px;
    box-shadow: var(--erv-shadow-sm);
    margin-bottom: 24px;
}

.erv-sidebar-title {
    font-size: 1.08rem;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--erv-red);
    display: flex;
    align-items: center;
    gap: 8px;
}

.erv-sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.erv-sidebar-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 14px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 700;
    color: #E2E8F0;
    background: #13161C;
    border: 1px solid var(--erv-border);
}

.erv-sidebar-link:hover,
.erv-sidebar-link.active {
    background: var(--erv-red);
    border-color: var(--erv-red);
    color: #FFFFFF;
}

/* ==========================================================================
   9. FOOTER & SABİT HIZLI AKSİYON BARI + TEKLİF MODALI
   ========================================================================== */
.erv-footer {
    background: var(--erv-dark);
    color: #CBD5E1;
    padding-top: 68px;
    border-top: 4px solid var(--erv-red);
}

.erv-footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 36px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.erv-footer-title {
    color: #FFFFFF;
    font-size: 1.05rem;
    font-weight: 800;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
}

.erv-footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 36px;
    height: 3px;
    background: var(--erv-red);
    border-radius: 2px;
}

.erv-footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.erv-footer-links a {
    font-size: 0.9rem;
    color: #94A3B8;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.erv-footer-links a:hover {
    color: #FFFFFF;
    transform: translateX(4px);
}

.erv-footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 0.9rem;
}

.erv-footer-contact-item i {
    color: var(--erv-red);
    margin-top: 4px;
}

.erv-footer-bottom {
    padding: 22px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.84rem;
    color: #64748B;
    flex-wrap: wrap;
    gap: 12px;
}

/* Yüzen WhatsApp & Hızlı Teklif Butonları */
.erv-floating-actions {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 995;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: flex-end;
}

.erv-float-btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 11px 18px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.86rem;
    color: #FFFFFF;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
    border: none;
    cursor: pointer;
}

.erv-float-wa {
    background: var(--erv-whatsapp);
}

.erv-float-call {
    background: var(--erv-red);
}

/* Hızlı Teklif Modalı */
.erv-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(8, 10, 14, 0.84);
    backdrop-filter: blur(6px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.erv-modal-backdrop.open {
    display: flex;
}

.erv-modal-box {
    background: var(--erv-white);
    border: 1px solid var(--erv-border);
    border-radius: var(--erv-radius-lg);
    width: 100%;
    max-width: 560px;
    overflow: hidden;
    box-shadow: var(--erv-shadow-lg);
    animation: ervModalIn 0.25s ease;
}

@keyframes ervModalIn {
    from { opacity: 0; transform: translateY(16px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.erv-modal-head {
    background: var(--erv-dark);
    color: #FFFFFF;
    padding: 22px 26px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 3px solid var(--erv-red);
}

.erv-modal-head h3 {
    font-size: 1.18rem;
    font-weight: 800;
    color: #FFFFFF;
}

.erv-modal-close {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.12);
    color: #FFFFFF;
    cursor: pointer;
    font-size: 1rem;
}

.erv-modal-body {
    padding: 26px;
}

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

.erv-form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    color: #CBD5E1;
    margin-bottom: 6px;
}

.erv-input,
.erv-select,
.erv-textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid var(--erv-border);
    font-family: inherit;
    font-size: 0.94rem;
    color: #FFFFFF;
    background: #12151A;
    transition: var(--erv-transition);
}

.erv-input:focus,
.erv-select:focus,
.erv-textarea:focus {
    outline: none;
    border-color: var(--erv-red);
    background: #0B0D11;
    box-shadow: 0 0 0 3px rgba(202, 33, 40, 0.2);
}

.erv-form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

/* Lightbox (İleri / Geri Oklar, Sayaç, Küçük Resim Şeridi ve Klavye Destekli) */
.erv-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(8, 10, 14, 0.95);
    backdrop-filter: blur(8px);
    z-index: 2100;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 70px 80px 100px;
    user-select: none;
}

.erv-lightbox.open {
    display: flex;
}

.erv-lb-topbar {
    position: absolute;
    top: 18px;
    left: 24px;
    right: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 10;
}

.erv-lb-counter {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
    padding: 7px 16px;
    border-radius: 999px;
    font-size: 0.86rem;
    font-weight: 800;
    letter-spacing: 0.03em;
}

.erv-lb-close {
    background: rgba(202, 33, 40, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #FFFFFF;
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 0.86rem;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--erv-transition);
}

.erv-lb-close:hover {
    background: #991B1B;
    transform: scale(1.04);
}

.erv-lb-stage {
    position: relative;
    max-width: 86vw;
    max-height: 74vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.erv-lb-stage img {
    max-width: 86vw;
    max-height: 68vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 14px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.65);
    cursor: pointer;
    transition: opacity 0.18s ease, transform 0.18s ease;
}

.erv-lb-caption {
    color: #FFFFFF;
    margin-top: 14px;
    font-weight: 700;
    font-size: 1rem;
    text-align: center;
    background: rgba(15, 23, 42, 0.75);
    padding: 6px 18px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.erv-lb-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.14);
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    color: #FFFFFF;
    font-size: 1.35rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: var(--erv-transition);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.4);
}

.erv-lb-nav:hover {
    background: var(--erv-red);
    border-color: var(--erv-red);
    transform: translateY(-50%) scale(1.08);
}

.erv-lb-prev {
    left: 24px;
}

.erv-lb-next {
    right: 24px;
}

.erv-lb-thumbs {
    position: absolute;
    bottom: 16px;
    left: 24px;
    right: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    overflow-x: auto;
    padding: 6px 10px;
    max-width: 92vw;
    margin: 0 auto;
    scrollbar-width: thin;
}

.erv-lb-thumb {
    width: 58px;
    height: 44px;
    border-radius: 7px;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.25);
    opacity: 0.55;
    cursor: pointer;
    flex-shrink: 0;
    transition: var(--erv-transition);
    background: #0F172A;
}

.erv-lb-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.erv-lb-thumb:hover,
.erv-lb-thumb.active {
    opacity: 1;
    border-color: var(--erv-amber);
    transform: translateY(-2px);
}

/* Mobil Alt Yapışkan Aksiyon Çubuğu (2 Numara + WhatsApp + Teklif) */
.erv-mobile-bottom-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--erv-dark);
    border-top: 2px solid var(--erv-red);
    z-index: 999;
    grid-template-columns: repeat(4, 1fr);
}

.erv-mobile-bottom-btn {
    padding: 10px 4px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: 0.7rem;
    font-weight: 800;
    color: #FFFFFF;
    border: none;
    background: transparent;
    cursor: pointer;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.erv-mobile-bottom-btn:last-child {
    border-right: none;
}

/* ==========================================================================
   10. RESPONSIVE (TABLET & MOBİL KUSURSUZ HİZALAMA)
   ========================================================================== */
@media (max-width: 1180px) {
    .erv-header-actions .btn-erv-secondary-call {
        display: none;
    }
}

@media (max-width: 1100px) {
    .erv-services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .erv-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .erv-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .erv-detail-layout {
        grid-template-columns: 1fr;
    }
    .erv-footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .erv-gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 920px) {
    .erv-topbar-left {
        display: none;
    }
    .erv-topbar-inner {
        padding: 7px 0;
        justify-content: center;
    }
    .erv-topbar-right {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        width: 100%;
    }
    .erv-topbar-phone {
        width: 100%;
        padding: 6px 8px;
        font-size: 0.8rem;
    }
    .erv-header-inner {
        min-height: 68px;
        gap: 10px;
    }
    .erv-logo {
        gap: 9px;
    }
    .erv-logo img {
        height: 42px;
        width: 42px;
    }
    .erv-logo-main {
        font-size: 1.25rem;
    }
    .erv-mobile-toggle {
        display: inline-flex;
    }
    .erv-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #161A21;
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
        border-bottom: 2px solid var(--erv-red);
        box-shadow: var(--erv-shadow-lg);
        display: none;
        max-height: calc(100vh - 120px);
        overflow-y: auto;
    }
    .erv-nav.open {
        display: flex;
    }
    .erv-dropdown,
    .erv-dropdown-mega {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        min-width: 100%;
        grid-template-columns: 1fr;
        border: none;
        background: #12151A;
        padding: 6px 8px;
        margin-top: 4px;
    }
}

@media (max-width: 640px) {
    body {
        padding-bottom: 64px;
    }
    .container {
        padding: 0 14px;
    }
    .erv-services-grid,
    .erv-info-grid,
    .erv-stats-grid,
    .erv-footer-grid,
    .erv-specs-table,
    .erv-form-row {
        grid-template-columns: 1fr;
    }
    .erv-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .erv-header-actions .btn-erv-dark {
        display: none;
    }
    .erv-header-actions .btn-erv-primary {
        padding: 9px 13px;
        font-size: 0.8rem;
    }
    .erv-floating-actions {
        display: none;
    }
    .erv-mobile-bottom-bar {
        display: grid;
    }
    .erv-hero,
    .erv-hero-slide.active {
        min-height: 500px;
    }
    .erv-hero-content {
        padding: 46px 0 70px;
    }
    .erv-lightbox {
        padding: 64px 14px 86px;
    }
    .erv-lb-nav {
        width: 44px;
        height: 44px;
        font-size: 1.05rem;
    }
    .erv-lb-prev {
        left: 10px;
    }
    .erv-lb-next {
        right: 10px;
    }
    .erv-lb-stage,
    .erv-lb-stage img {
        max-width: 94vw;
    }
}