/* ============================================
   IGS TEKNOLOJİ - Ana Stylesheet
   ============================================ */

:root {
    --primary: #162B66;
    --primary-dark: #142A65;
    --primary-light: #475886;
    --accent: #61C3E2;
    --accent-hover: #4bb0cf;
    --bg-light: #F7F8F9;
    --white: #ffffff;
    --dark: #1a1a2e;
    --text: #2d2d3a;
    --text-light: #6b7280;
    --border: #e5e7eb;
    --shadow: 0 4px 20px rgba(22, 43, 102, 0.08);
    --shadow-lg: 0 8px 40px rgba(22, 43, 102, 0.12);
    --shadow-hover: 0 12px 48px rgba(22, 43, 102, 0.18);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-main);
    color: var(--text);
    background-color: var(--white);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

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

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

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

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h4, h5, h6 {
    font-family: var(--font-main);
    font-weight: 700;
    color: var(--primary);
    line-height: 1.35;
    letter-spacing: -0.01em;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.7rem; }
h4 { font-size: 1.3rem; }

p {
    color: var(--text);
    line-height: 1.8;
    letter-spacing: 0.01em;
}

.p-hero {
    color: var(--white) !important;
}

.text-white {
    color: #b6b6b6 !important;
}

.text-accent {
    color: var(--accent) !important;
    font-family: var(--font-main);
    letter-spacing: 2px;
    font-size: 0.8rem;
}

.section-title {
    font-family: var(--font-display);
    position: relative;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -0.025em;
}

.section-title::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), rgba(97, 195, 226, 0.3));
    margin-top: 14px;
    border-radius: 2px;
}

.section-title.text-center::after {
    margin-left: auto;
    margin-right: auto;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.05rem;
    max-width: 640px;
    line-height: 1.85;
    letter-spacing: 0.01em;
}

.section-subtitle.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* Lead paragraphs */
.lead {
    font-size: 1.15rem;
    font-weight: 400;
    line-height: 1.85;
    color: var(--text-light);
    letter-spacing: 0.01em;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary {
    background: var(--primary) !important;
    border-color: var(--primary) !important;
    padding: 12px 32px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--primary-dark) !important;
    border-color: var(--primary-dark) !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(22, 43, 102, 0.3);
}

.btn-accent {
    background: var(--accent);
    border: 2px solid var(--accent);
    color: var(--white);
    padding: 12px 32px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: var(--transition);
    display: inline-block;
}

.btn-accent:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(97, 195, 226, 0.35);
}

.btn-outline-light {
    border: 2px solid var(--white);
    color: var(--white);
    padding: 12px 32px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline-light:hover {
    background: var(--white);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-outline-primary {
    border: 2px solid var(--primary) !important;
    color: var(--primary) !important;
    padding: 12px 32px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline-primary:hover {
    background: var(--primary) !important;
    color: var(--white) !important;
    transform: translateY(-2px);
}

/* ============================================
   TOP BAR
   ============================================ */
.top-bar {
    background: var(--primary);
    color: var(--white);
    padding: 8px 0;
    font-size: 0.85rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.top-bar a {
    color: rgba(255,255,255,0.85);
    transition: var(--transition);
}

.top-bar a:hover {
    color: var(--accent);
}

.top-bar .bi {
    margin-right: 5px;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.main-header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background 0.4s ease, box-shadow 0.4s ease;
}

.main-header.scrolled {
    box-shadow: var(--shadow-lg);
}

.main-header .navbar {
    padding: 15px 0 !important;
}

.main-header .navbar-brand img {
    height: 48px;
    transition: var(--transition);
}

.main-header .navbar-brand .logo-white {
    display: none;
}

.main-header .nav-link {
    color: var(--primary) !important;
    font-weight: 500;
    padding: 8px 16px !important;
    font-size: 0.9rem;
    letter-spacing: 0.02em;
    position: relative;
    transition: var(--transition);
}

.main-header .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.main-header .nav-link:hover::after,
.main-header .nav-link.active::after {
    transform: scaleX(1);
}

.main-header .nav-link:hover {
    color: var(--accent) !important;
}

.navbar-cta .btn {
    padding: 10px 24px;
    font-size: 0.9rem;
}

/* Hero page overlay header */
body.hero-page .main-header {
    position: fixed;
    background: transparent;
    box-shadow: none;
    top: 0;
    left: 0;
    right: 0;
}

body.hero-page .main-header.scrolled {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

body.hero-page .main-header:not(.scrolled) .nav-link {
    color: rgba(255, 255, 255, 0.92) !important;
}

body.hero-page .main-header:not(.scrolled) .nav-link:hover {
    color: var(--accent) !important;
}

body.hero-page .main-header:not(.scrolled) .nav-link::after {
    background: var(--accent);
}

body.hero-page .main-header:not(.scrolled) .navbar-brand .logo-color {
    display: none;
}

body.hero-page .main-header:not(.scrolled) .navbar-brand .logo-white {
    display: block;
}

body.hero-page .main-header.scrolled .navbar-brand .logo-color {
    display: block;
}

body.hero-page .main-header.scrolled .navbar-brand .logo-white {
    display: none;
}

body.hero-page .main-header:not(.scrolled) .hamburger-btn span {
    background: var(--white);
}

body.hero-page .main-header:not(.scrolled) .dropdown-toggle::after {
    border-top-color: rgba(255, 255, 255, 0.92);
}

body.hero-page main {
    padding-top: 0;
}

/* ============================================
   MEGA MENU
   ============================================ */
.mega-menu-wrapper {
    position: static;
}

.mega-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    border-top: 3px solid var(--accent);
    padding: 32px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 999;
}

.mega-menu-wrapper:hover .mega-menu,
.mega-menu-wrapper.show .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mega-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mega-menu-list li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--text);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-weight: 500;
}

.mega-menu-list li a:hover,
.mega-menu-list li a.active {
    background: var(--bg-light);
    color: var(--accent);
}

.mega-menu-list li a .bi {
    font-size: 1.1rem;
    color: var(--accent);
    width: 24px;
    text-align: center;
}

.mega-menu-image {
    border-radius: var(--radius);
    overflow: hidden;
    height: 100%;
    min-height: 300px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.mega-menu-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(22,43,102,0.6), rgba(97,195,226,0.3));
    border-radius: var(--radius);
}

/* ============================================
   DROPDOWN (Bilgi Merkezi)
   ============================================ */
.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-top: 3px solid var(--accent);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    padding: 12px 0;
    margin-top: 0;
}

.dropdown-item {
    padding: 10px 20px;
    font-weight: 500;
    color: var(--text);
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--bg-light);
    color: var(--accent);
}

/* ============================================
   MOBILE MENU
   ============================================ */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(22, 43, 102, 0.95);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: none;
    border: none;
    color: var(--white);
    font-size: 2rem;
    cursor: pointer;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.mobile-menu-close:hover {
    background: rgba(255,255,255,0.1);
}

.mobile-menu-nav {
    list-style: none;
    padding: 0;
    text-align: center;
}

.mobile-menu-nav li {
    margin: 8px 0;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.4s ease;
}

.mobile-menu-overlay.active .mobile-menu-nav li {
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu-overlay.active .mobile-menu-nav li:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu-overlay.active .mobile-menu-nav li:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu-overlay.active .mobile-menu-nav li:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu-overlay.active .mobile-menu-nav li:nth-child(4) { transition-delay: 0.25s; }
.mobile-menu-overlay.active .mobile-menu-nav li:nth-child(5) { transition-delay: 0.3s; }
.mobile-menu-overlay.active .mobile-menu-nav li:nth-child(6) { transition-delay: 0.35s; }
.mobile-menu-overlay.active .mobile-menu-nav li:nth-child(7) { transition-delay: 0.4s; }
.mobile-menu-overlay.active .mobile-menu-nav li:nth-child(8) { transition-delay: 0.45s; }

.mobile-menu-nav a {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 600;
    padding: 12px 24px;
    display: inline-block;
    position: relative;
}

.mobile-menu-nav a::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.mobile-menu-nav a:hover::after {
    width: 60%;
}

.mobile-menu-nav a:hover {
    color: var(--accent);
}

.mobile-menu-sub {
    list-style: none;
    padding: 0;
    margin-top: 4px;
}

.mobile-menu-sub a {
    font-size: 1.1rem;
    font-weight: 400;
    color: rgba(255,255,255,0.7);
}

.mobile-menu-sub {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.mobile-menu-sub.show {
    max-height: 600px;
}

.mobile-sub-toggle .bi-chevron-down {
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.mobile-sub-toggle.open .bi-chevron-down {
    transform: rotate(180deg);
}

.hamburger-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 100;
}

.hamburger-btn span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--primary);
    margin: 5px 0;
    border-radius: 2px;
    transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 640px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-video-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-video-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(10,20,60,0.88) 0%, rgba(22,43,102,0.78) 50%, rgba(14,35,85,0.65) 100%);
    z-index: 1;
}

.hero-inner {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-content {
    color: var(--white);
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(97, 195, 226, 0.15);
    border: 1px solid rgba(97, 195, 226, 0.35);
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 7px 16px;
    border-radius: 40px;
    margin-bottom: 24px;
}

.hero-content h1 {
    font-family: var(--font-main);
    color: var(--white);
    font-size: 3.6rem;
    font-weight: 800;
    margin-bottom: 22px;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.hero-content h1 em {
    font-style: normal;
    color: var(--accent);
}

.hero-content .hero-desc {
    font-family: var(--font-main);
    font-size: 1.08rem;
    opacity: 0.85;
    margin-bottom: 36px;
    max-width: 500px;
    line-height: 1.85;
    font-weight: 400;
    letter-spacing: 0.01em;
}

.hero-content .btn {
    margin-right: 12px;
    margin-bottom: 12px;
}

/* Hero blur-in animation */
.hero-blur-in {
    opacity: 0;
    animation: heroBlurIn 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-blur-in:nth-child(1) { animation-delay: 0.2s; }
.hero-blur-in:nth-child(2) { animation-delay: 0.45s; }
.hero-blur-in:nth-child(3) { animation-delay: 0.65s; }
.hero-blur-in:nth-child(4) { animation-delay: 0.85s; }

@keyframes heroBlurIn {
    from {
        opacity: 0;
        filter: blur(18px);
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        filter: blur(0);
        transform: translateY(0);
    }
}

/* Hero floating cards */
.hero-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    padding-left: 20px;
    opacity: 0;
    animation: heroBlurIn 1s cubic-bezier(0.22, 1, 0.36, 1) 0.9s forwards;
}

.hero-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius);
    padding: 22px 18px;
    color: var(--white);
    text-align: center;
    transition: background 0.3s ease, border-color 0.3s ease;
    animation: floatCard 5s ease-in-out infinite;
}

.hero-card:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(97, 195, 226, 0.45);
}

.hero-card:nth-child(2) { animation-delay: 0.7s; }
.hero-card:nth-child(3) { animation-delay: 1.4s; }
.hero-card:nth-child(4) { animation-delay: 2.1s; }
.hero-card:nth-child(5) {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
    padding: 18px 24px;
    animation-delay: 2.8s;
}

.hero-card-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: rgba(97, 195, 226, 0.22);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    font-size: 1.4rem;
    color: var(--accent);
}

.hero-card:nth-child(5) .hero-card-icon {
    margin: 0;
}

.hero-card-title {
    font-size: 0.88rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--white);
}

.hero-card-sub {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.4;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    text-align: center;
    color: var(--white);
    opacity: 0.6;
    animation: scrollBounce 2.5s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ============================================
   STATS SECTION
   ============================================ */
.stats-section {
    background: var(--white);
    padding: 80px 0;
    position: relative;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stat-item {
    text-align: center;
    padding: 24px 20px;
    border-right: 1px solid var(--border);
}

.col-lg-3:last-child .stat-item {
    border-right: none;
}

.stat-number {
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-light);
    font-weight: 500;
}

.stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: rgba(97, 195, 226, 0.12);
    border-radius: var(--radius-sm);
    margin: 0 auto 16px;
    font-size: 1.4rem;
    color: var(--accent);
}

/* ============================================
   BRANDS / MARKA LOGOLARI
   ============================================ */
.brands-section {
    padding: 56px 0 64px;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border);
}

.brands-section-label {
    font-family: var(--font-main);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.brands-logos {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    max-width: 100%;
}

.brand-logo-item {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 128px;
    height: 78px;
    padding: 12px 14px;
    box-sizing: border-box;
    background: var(--white);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.brand-logo-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(97, 195, 226, 0.35);
}

.brand-logo-item img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    object-position: center;
    display: block;
    transition: var(--transition);
}

/* ============================================
   REFERENCES / REFERANS LOGOLARI
   ============================================ */
.references-section {
    padding: 56px 0 72px;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

.references-section-label {
    font-family: var(--font-main);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-light);
    margin-bottom: 1.75rem;
}

.references-logos {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    align-items: center;
    justify-items: center;
    gap: 2.5rem 3rem;
    max-width: 1040px;
    margin: 0 auto;
}

.reference-logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 260px;
    min-height: 100px;
    padding: 20px 24px;
    box-sizing: border-box;
    background: var(--white);
    border-radius: var(--radius);
    border: none;
    transition: var(--transition);
}

.reference-logo-item:hover {
    box-shadow: var(--shadow);
}

.reference-logo-item img {
    max-width: 100%;
    max-height: 88px;
    width: auto;
    height: auto;
    object-fit: contain;
    object-position: center;
    display: block;
}

/* ============================================
   ABOUT PREVIEW
   ============================================ */
.about-preview {
    padding: 100px 0;
}

.about-preview-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.about-preview-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 400px;
}

.about-preview-badge {
    position: absolute;
    bottom: 24px;
    right: 24px;
    background: var(--accent);
    color: var(--white);
    padding: 16px 24px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.about-preview-badge .badge-number {
    font-size: 2rem;
    font-weight: 800;
    display: block;
    line-height: 1;
}

.about-preview-badge .badge-text {
    font-size: 0.85rem;
    font-weight: 600;
}

/* ============================================
   SERVICES GRID
   ============================================ */
.services-section {
    padding: 100px 0;
    background: var(--bg-light);
}

.service-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.service-card-img {
    height: 295px;
    overflow: hidden;
    position: relative;
}

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

.service-card:hover .service-card-img img {
    transform: scale(1.08);
}

.service-card-icon {
    position: absolute;
    bottom: -20px;
    left: 24px;
    width: 48px;
    height: 48px;
    background: var(--accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    box-shadow: 0 4px 12px rgba(97, 195, 226, 0.4);
    z-index: 2;
}

.service-card-body {
    padding: 32px 24px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.service-card-body h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.service-card-body p {
    color: var(--text-light);
    font-size: 0.9rem;
    flex: 1;
    margin-bottom: 16px;
}

.service-card-body .card-link {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.service-card-body .card-link:hover {
    gap: 10px;
}

/* ============================================
   INFO PREVIEW (Bilgi Merkezi)
   ============================================ */
.info-preview {
    padding: 100px 0;
}

.faq-accordion .accordion-item {
    border: none;
    margin-bottom: 12px;
    border-radius: var(--radius-sm) !important;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.faq-accordion .accordion-button {
    font-weight: 600;
    color: var(--primary);
    padding: 18px 24px;
    background: var(--white);
    box-shadow: none;
}

.faq-accordion .accordion-button:not(.collapsed) {
    background: var(--primary);
    color: var(--white);
}

.faq-accordion .accordion-button:not(.collapsed)::after {
    filter: brightness(0) invert(1);
}

.faq-accordion .accordion-body {
    padding: 20px 24px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 60%, var(--primary-light) 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(97,195,226,0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(97,195,226,0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-section h2 {
    color: var(--white);
}

.cta-section .section-title::after {
    background: var(--accent);
}

.cta-form {
    position: relative;
    z-index: 1;
}

.cta-form .form-control {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--white);
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: var(--transition);
}

.cta-form .form-control::placeholder {
    color: rgba(255,255,255,0.5);
}

.cta-form .form-control:focus {
    background: rgba(255,255,255,0.15);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(97,195,226,0.2);
    color: var(--white);
}

.cta-form textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* ============================================
   PAGE BANNER
   ============================================ */
.page-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 60%, rgba(22,43,102,0.9) 100%);
    min-height: 56vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    padding-bottom: 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -15%;
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(97,195,226,0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.page-banner::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(97,195,226,0.07) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

/* Video background */
.page-banner-video-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.page-banner-video-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page-banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(10,20,60,0.88) 0%, rgba(22,43,102,0.78) 50%, rgba(14,35,85,0.72) 100%);
    z-index: 1;
}

.page-banner-inner {
    position: relative;
    z-index: 2;
    width: 100%;
}

.page-banner h1 {
    font-family: var(--font-display);
    color: var(--white);
    margin-bottom: 0;
    font-size: 3.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.12;
}

.page-banner-subtitle {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.05rem;
    max-width: 560px;
    margin: 18px auto 0;
    line-height: 1.75;
    letter-spacing: 0.01em;
}

.page-banner .hero-eyebrow {
    display: inline-flex;
    justify-content: center;
}

.page-banner .breadcrumb {
    justify-content: center;
    margin-bottom: 0;
}

.page-banner .breadcrumb-item,
.page-banner .breadcrumb-item a {
    color: rgba(255,255,255,0.65);
    font-size: 0.88rem;
}

.page-banner .breadcrumb-item.active {
    color: var(--accent);
}

.page-banner .breadcrumb-item + .breadcrumb-item::before {
    color: rgba(255,255,255,0.4);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding-top: 80px;
}

.footer-brand img {
    height: 48px;
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.8;
    max-width: 300px;
}

.footer-title {
    font-family: var(--font-main);
    color: var(--white);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent);
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.footer-contact .bi {
    color: var(--accent);
    font-size: 1.1rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
    margin-top: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    margin: 0;
    font-size: 0.85rem;
}

.footer-bottom a {
    color: var(--accent);
}

.footer-bottom a:hover {
    color: var(--white);
}

.footer-map {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-top: 20px;
}

.footer-map iframe {
    width: 100%;
    height: 200px;
    border: 0;
}

/* ============================================
   PRODUCT DETAIL
   ============================================ */
.product-detail {
    padding: 80px 0;
}

.product-gallery {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.product-gallery img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.product-info h2 {
    margin-bottom: 20px;
}

.product-specs {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 24px;
    margin-top: 24px;
}

.product-specs h4 {
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.spec-table {
    width: 100%;
}

.spec-table tr td {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.spec-table tr td:first-child {
    font-weight: 600;
    color: var(--primary);
    width: 40%;
}

.spec-table tr:last-child td {
    border-bottom: none;
}

.related-products {
    padding: 80px 0;
    background: var(--bg-light);
}

/* ============================================
   PROJECTS PAGE
   ============================================ */
.project-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.project-card-img {
    height: 240px;
    overflow: hidden;
}

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

.project-card:hover .project-card-img img {
    transform: scale(1.05);
}

.project-card-body {
    padding: 24px;
}

.project-card-body h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.project-card-body p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.project-tag {
    background: var(--bg-light);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-section {
    padding: 80px 0;
}

.contact-info-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    height: 100%;
    text-align: center;
    transition: var(--transition);
}

.contact-info-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.contact-info-card .icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: var(--white);
    font-size: 1.5rem;
}

.contact-form-wrapper {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
}

.contact-form-wrapper .form-control,
.contact-form-wrapper .form-select {
    padding: 14px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.contact-form-wrapper .form-control:focus,
.contact-form-wrapper .form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(97,195,226,0.15);
}

/* ============================================
   KURUMSAL PAGE
   ============================================ */
.kurumsal-section {
    padding: 80px 0;
}

.kurumsal-tabs .nav-link {
    color: var(--text);
    font-weight: 600;
    padding: 16px 32px;
    border: none;
    border-bottom: 3px solid transparent;
    border-radius: 0;
    transition: var(--transition);
}

.kurumsal-tabs .nav-link.active {
    color: var(--primary);
    border-bottom-color: var(--accent);
    background: transparent;
}

.kurumsal-content {
    padding: 40px 0;
}

.vision-mission-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
    height: 100%;
    border-top: 4px solid var(--accent);
}

.vision-mission-card .icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 20px;
}

/* ============================================
   TEKLIF ISTE PAGE
   ============================================ */
.teklif-section {
    padding: 80px 0;
}

.teklif-form-wrapper {
    background: var(--white);
    border-radius: var(--radius);
    padding: 48px;
    box-shadow: var(--shadow-lg);
}

.service-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
}

.service-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.bg-light-custom {
    background: var(--bg-light);
}

.text-accent {
    color: var(--accent);
}

.text-primary-custom {
    color: var(--primary);
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--accent);
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 4px 12px rgba(97, 195, 226, 0.4);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    background: var(--primary);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 991.98px) {
    .hamburger-btn {
        display: block;
    }

    .desktop-nav {
        display: none !important;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }

    .hero-content h1 {
        font-size: 2.6rem;
    }

    .hero-cards {
        display: none;
    }

    .hero-section {
        min-height: 100svh;
        align-items: center;
    }

    .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .col-lg-3:last-child .stat-item {
        border-bottom: none;
    }

    .stat-number {
        font-size: 2.25rem;
    }

    .about-preview,
    .services-section,
    .info-preview,
    .cta-section {
        padding: 60px 0;
    }

    .page-banner {
        min-height: 50vh;
        padding-top: 100px;
        padding-bottom: 40px;
    }

    .page-banner h1 {
        font-size: 2.2rem;
    }
}

@media (max-width: 991.98px) {
    .brands-logos {
        justify-content: flex-start;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x proximity;
        padding-bottom: 6px;
        gap: 0.4rem;
    }

    .brand-logo-item {
        scroll-snap-align: start;
    }

    .references-logos {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem 2rem;
        max-width: 640px;
    }

    .reference-logo-item {
        min-height: 92px;
        max-width: none;
        padding: 18px 20px;
    }

    .reference-logo-item img {
        max-height: 76px;
    }
}

@media (max-width: 767.98px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content .hero-desc {
        font-size: 1rem;
    }

    .stat-item {
        padding: 16px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .references-section {
        padding: 40px 0 52px;
    }

    .references-logos {
        grid-template-columns: 1fr 1fr;
        gap: 1.25rem;
        max-width: 320px;
    }

    .reference-logo-item {
        min-height: 88px;
        padding: 16px 20px;
    }

    .reference-logo-item img {
        max-height: 72px;
    }

    .brands-section {
        padding: 40px 0 48px;
    }

    .brands-logos {
        justify-content: flex-start;
        gap: 0.35rem;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x proximity;
        padding-bottom: 8px;
    }

    .brand-logo-item {
        width: 118px;
        height: 70px;
        padding: 10px 12px;
        scroll-snap-align: start;
    }

    .footer-bottom {
        justify-content: center;
        text-align: center;
    }

    .teklif-form-wrapper,
    .contact-form-wrapper {
        padding: 24px;
    }

    .mobile-menu-nav a {
        font-size: 1.25rem;
    }
}

@media (max-width: 575.98px) {
    .hero-content h1 {
        font-size: 1.75rem;
    }

    .btn-primary,
    .btn-accent,
    .btn-outline-light,
    .btn-outline-primary {
        padding: 10px 24px;
        font-size: 0.9rem;
    }
}

/* ============================================
   FORM RESULT MESSAGES
   ============================================ */
.form-result-message {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 20px;
    line-height: 1.6;
    animation: fadeInUp 0.35s ease;
}

.form-result-success {
    background: #e8f8f0;
    color: #1a7a4c;
    border: 1px solid #b8e8d0;
}

.form-result-error {
    background: #fef0f0;
    color: #c0392b;
    border: 1px solid #f5c6c6;
}

/* Form başarı ekranı */
.form-success-screen {
    text-align: center;
    padding: 64px 32px;
    animation: successFadeIn 0.6s ease forwards;
}

.form-success-icon {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2ecc71, #27ae60);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
    animation: successPop 0.5s cubic-bezier(0.22, 1, 0.36, 1) 0.15s both;
}

.form-success-icon i {
    font-size: 2.4rem;
    color: #fff;
    animation: checkDraw 0.4s ease 0.5s both;
}

.form-success-screen h3 {
    font-family: var(--font-display);
    color: var(--primary);
    margin-bottom: 12px;
    animation: successFadeIn 0.5s ease 0.35s both;
}

.form-success-screen p {
    color: var(--text-light);
    max-width: 420px;
    margin: 0 auto;
    line-height: 1.7;
    animation: successFadeIn 0.5s ease 0.5s both;
}

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

@keyframes successPop {
    0%   { opacity: 0; transform: scale(0.3); }
    60%  { transform: scale(1.1); }
    100% { opacity: 1; transform: scale(1); }
}

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

/* ============================================
   ANIMATIONS
   ============================================ */
[data-aos] {
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.swiper-pagination-bullet-active {
    background: var(--accent) !important;
}

/* Loading animation for stat counters */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}