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

:root {
    --ice-blue: #f5f5f5;           /* Açık nötr arka plan */
    --light-blue: #d9d9d9;         /* Kart ve sekmeler için */
    --primary-blue: #4a4a4a;       /* Ana vurgu / başlık */
    --blue-medium: #7a7a7a;        /* Orta vurgu / hover renkleri */
    --gradient-primary: linear-gradient(135deg, #f5f5f5 0%, #d9d9d9 50%, #4a4a4a 100%);
    --gradient-secondary: linear-gradient(135deg, #f5f5f5 0%, #e1e1e1 100%);
    --gradient-hero: linear-gradient(135deg, rgba(74, 74, 74, 0.9) 0%, rgba(122, 122, 122, 0.8) 100%);
    --white: #ffffff;
    --text-dark: #1e1e1e;          /* Ana metin */
    --text-medium: #4a4a4a;        /* Orta metin / başlıklar */
    --text-light: #7a7a7a;         /* Alt metin / hover */
    --shadow: 0 10px 30px rgba(30, 30, 30, 0.1);
    --shadow-lg: 0 20px 50px rgba(30, 30, 30, 0.15);
    --shadow-xl: 0 30px 60px rgba(30, 30, 30, 0.2);
    --shadow-xxl: 0 40px 80px rgba(30, 30, 30, 0.25);
}


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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    overflow-x: hidden;
    background: var(--gradient-secondary);
}

/* === ULTRA LOADING SCREEN === */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: all 0.8s cubic-bezier(0.87, 0, 0.13, 1);
}

.loading-screen.loaded {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-100%);
}

.loading-content {
    text-align: center;
    color: var(--text-dark);
    animation: ultraFadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.loading-logo {
    margin-bottom: 2rem;
    animation: ultraPulse3D 2.5s ease-in-out infinite, ultraGlow 3s ease-in-out infinite alternate;
}

.loading-logo img {
    width: 150px;
    height: 150px;
    filter: drop-shadow(0 15px 30px rgba(74, 74, 74, 0.4));
}

.loading-text h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: 3px;
    background: linear-gradient(135deg, var(--text-dark), var(--text-medium), var(--primary-blue), var(--light-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 300% 300%;
    animation: ultraGradientShift 4s ease-in-out infinite, ultraTextGlow 2s ease-in-out infinite alternate;
}

.loading-subtitle {
    font-size: 1.2rem;
    color: var(--text-medium);
    animation: ultraFadeIn 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.5s both;
}

.loading-progress {
    width: 300px;
    height: 6px;
    background: rgba(122, 122, 122, 0.2);
    border-radius: 10px;
    margin: 2rem auto 0;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--text-dark), var(--primary-blue), var(--blue-medium), var(--light-blue));
    width: 0%;
    border-radius: 10px;
    animation: loading 2s cubic-bezier(0.65, 0, 0.35, 1) forwards, ultraProgressGlow 2s ease-in-out infinite;
    position: relative;
    background-size: 200% 100%;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
    animation: ultraShine 2s ease-in-out infinite;
}

/* === ULTRA HEADER ANIMATIONS === */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border-bottom: 1px solid rgba(179, 224, 255, 0.5);
    transform: translateY(0);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(30px);
    transform: translateY(-2px);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: ultraSlideInLeft 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.nav-brand .logo {
    height: 80px;
    width: auto;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    animation: ultraLogoFloat 6s ease-in-out infinite;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-dark), var(--text-medium));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    animation: ultraFadeInDown 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s both;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
    transform: translateY(-3px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-blue), var(--blue-medium));
    transition: width 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-radius: 2px;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-actions .cta-button {
    background: var(--gradient-primary);
    color: var(--text-dark);
    border: 1px solid var(--light-blue);
    animation: ultraSlideInRight 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s both;
}

.nav-actions .cta-button:hover {
    background: var(--white);
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-xl);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 0.5rem;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-radius: 2px;
}

/* === ULTRA HERO SECTION === */
.hero {
    height: 100vh;
    position: relative;
    overflow: hidden;
    scroll-margin-top: 0;
}

.hero-slides {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1.5s cubic-bezier(0.77, 0, 0.175, 1);
    transform: scale(1.1);
    filter: brightness(0.8);
}

.slide.active {
    opacity: 1;
    transform: scale(1);
    filter: brightness(1);
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(74, 74, 74, 0.4), rgba(122, 122, 122, 0.3), rgba(217, 217, 217, 0.2));
    animation: ultraGradientFlow 8s ease-in-out infinite;
    background-size: 200% 200%;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    animation: ultraOverlayPulse 6s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 0 2rem;
    animation: ultraContentReveal 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hero-slogan {
    margin-bottom: 3rem;
}

.slogan-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.4);
    animation: ultraTitleGlow 3s ease-in-out infinite alternate;
}

.slogan-line {
    display: block;
    animation: ultraLineReveal 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
    opacity: 0;
    transform: translateY(50px) rotateX(90deg);
}

.slogan-line:nth-child(1) { animation-delay: 0.6s; }
.slogan-line:nth-child(2) { animation-delay: 0.9s; }

.highlight {
    color: var(--white);
    position: relative;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    background: linear-gradient(135deg, #ffffff, #f5f5f5, #d9d9d9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: ultraHighlightGlow 4s ease-in-out infinite;
}

.slogan-subtitle {
    font-size: 1.3rem;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    animation: ultraFadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 1.2s both;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
    animation: ultraFadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 1.4s both;
}

/* === ULTRA BUTTONS === */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    cursor: pointer;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.6s ease;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.cta-button:hover::after {
    opacity: 1;
    transform: scale(1);
}

.cta-button.primary {
    background: var(--white);
    color: var(--text-dark);
    box-shadow: var(--shadow);
}

.cta-button.secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.cta-button:hover {
    transform: translateY(-5px) scale(1.05) rotateX(10deg);
    box-shadow: var(--shadow-xxl);
}

.cta-button.primary:hover {
    background: var(--ice-blue);
    transform: translateY(-5px) scale(1.05) rotateX(10deg);
}

.cta-button.secondary:hover {
    background: var(--white);
    color: var(--text-dark);
    transform: translateY(-5px) scale(1.05) rotateX(10deg);
}

.cta-button.large {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
}

.cta-button.small {
    padding: 0.7rem 1.5rem;
    font-size: 0.9rem;
}

/* === ULTRA SCROLL INDICATOR === */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    z-index: 2;
    animation: ultraFadeIn 1s ease-out 2s both;
}

.mouse {
    width: 26px;
    height: 44px;
    border: 2px solid var(--white);
    border-radius: 15px;
    position: relative;
    margin: 0 auto 0.5rem;
    animation: ultraMouseFloat 3s ease-in-out infinite;
    box-shadow: 0 0 20px rgba(255,255,255,0.3);
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--white);
    border-radius: 2px;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: ultraScroll 2s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(255,255,255,0.5);
    filter: drop-shadow(0 0 5px rgba(255,255,255,0.8));
}

.arrow {
    width: 14px;
    height: 14px;
    border-right: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(45deg);
    animation: ultraBounce 2s infinite;
    margin: 0 auto;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

/* === SECTIONS - ULTRA ANIMATIONS === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 80px 0;
    scroll-margin-top: 80px;
}

.section-spacer {
    height: 60px;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
    animation: ultraFadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-dark), var(--text-medium), var(--primary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    background-size: 200% 200%;
    animation: ultraGradientShift 6s ease-in-out infinite;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-medium);
    animation: ultraFadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s both;
}

/* === ULTRA ABOUT PREVIEW === */
.about-preview {
    background: var(--gradient-secondary);
    padding: 80px 0;
}

.about-preview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-preview-text {
    animation: ultraSlideInLeft 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.about-preview-text h2 {
    font-size: 2.2rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.about-preview-text p {
    font-size: 1.1rem;
    color: var(--text-medium);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-preview-image {
    animation: ultraSlideInRight 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.about-preview-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.about-preview-image img:hover {
    transform: scale(1.02) rotate(1deg);
    box-shadow: var(--shadow-xxl);
}

/* === ULTRA ABOUT SECTION === */
.about {
    background: var(--gradient-secondary);
    position: relative;
}

.about .section-spacer {
    height: 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text {
    animation: ultraFadeInLeft 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-medium);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.features-grid {
    display: grid;
    gap: 1.5rem;
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    overflow: hidden;
}

.feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(217, 217, 217, 0.2), transparent);
    transition: left 0.6s ease;
}

.feature:hover::before {
    left: 100%;
}

.feature:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    background: var(--gradient-primary);
    color: var(--text-dark);
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    animation: ultraIconFloat 4s ease-in-out infinite;
}

.feature:hover .feature-icon {
    transform: scale(1.1) rotate(10deg);
    background: linear-gradient(135deg, var(--primary-blue), var(--blue-medium));
}

.feature-content h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.feature-content p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-medium);
}

.about-visual {
    position: relative;
    margin-top: 100px;
    animation: ultraFadeInRight 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.visual-main img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.visual-main img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xxl);
}

.visual-badge {
    position: absolute;
    top: -20px;
    right: -20px;
    background: var(--gradient-primary);
    color: var(--text-dark);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    border: 4px solid var(--white);
    animation: ultraBadgePulse 3s ease-in-out infinite;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.visual-badge:hover {
    transform: scale(1.1) rotate(15deg);
    animation: none;
}

.badge-years {
    font-size: 1.8rem;
    font-weight: 700;
}

.badge-text {
    font-size: 0.9rem;
}

/* === ULTRA SERVICES SECTION === */
.services {
    background: var(--gradient-secondary); /* HTML ile aynı yap */
    padding: 80px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr); /* 5 sütun yap */
    gap: 1.2rem; /* HTML ile aynı */
    margin-top: 2.5rem; /* HTML ile aynı */
}

.service-card {
    background: var(--white);
    border-radius: 15px; /* HTML ile aynı */
    padding: 0; /* HTML'de padding yok */
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border: 1px solid var(--light-blue);
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    text-decoration: none;
    overflow: hidden;
    cursor: pointer;
    height: 220px; /* HTML ile aynı */
    display: flex;
    flex-direction: column; /* HTML ile aynı */
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(217, 217, 217, 0.3), transparent);
    transition: left 0.6s ease;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: var(--shadow-xxl);
}

.service-header {
    text-align: center;
    margin-bottom: 2rem;
    position: relative;
}

.service-icon {
    font-size: 3.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    display: inline-block;
    animation: ultraServiceIconFloat 5s ease-in-out infinite;
    background-size: 200% 200%;
    animation: ultraGradientShift 4s ease-in-out infinite, ultraServiceIconFloat 5s ease-in-out infinite;
}

.service-header h3 {
    color: var(--text-dark);
    font-size: 1.5rem;
    font-weight: 600;
}

.service-body p {
    color: var(--text-medium);
    margin-bottom: 1.5rem;
    text-align: center;
    line-height: 1.6;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.service-features li:hover {
    color: var(--primary-blue);
    transform: translateX(8px);
}

.service-features i {
    color: var(--primary-blue);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.service-features li:hover i {
    transform: scale(1.3) rotate(15deg);
}

/* === ULTRA REFERENCES SECTION === */
.references {
    background: var(--gradient-primary);
    padding: 60px 0;
    overflow: hidden;
}

.references .section-spacer {
    height: 0;
}

.references-slider {
    position: relative;
    width: 100%;
    margin: 0 auto;
    max-height: 100px;
}

.references-track {
    display: flex;
    gap: 3rem;
    width: max-content;
    align-items: center;
    animation: ultraScrollReferences 60s linear infinite;
}

.references-track:hover {
    animation-play-state: paused;
}

.reference-item {
    flex: 0 0 200px;
    background: var(--white);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--light-blue);
    position: relative;
    overflow: hidden;
}

.reference-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.6s ease;
}

.reference-item:hover::before {
    left: 100%;
}

.reference-item:hover {
    transform: translateY(-10px) scale(1.08) rotate(2deg);
    box-shadow: 0 30px 60px rgba(74, 74, 74, 0.3);
}

.reference-item img {
    max-width: 100%;
    height: 80px;
    object-fit: contain;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    filter: grayscale(0.3);
}

.reference-item:hover img {
    transform: scale(1.15);
    filter: grayscale(0);
}

/* === ULTRA CTA SECTION === */
.cta {
    background: var(--gradient-primary);
    color: var(--text-dark);
    text-align: center;
    display: flex;
    align-items: center;
    min-height: 40vh;
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: ultraCTAGlow 6s ease-in-out infinite;
}

.cta .container {
    width: 100%;
    position: relative;
    z-index: 2;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    animation: ultraFadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.cta-content h2 {
    font-size: 2rem;
    margin-bottom: 0.8rem;
    background: linear-gradient(135deg, var(--text-dark), var(--text-medium));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-content p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-medium);
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    animation: ultraFadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.cta-button.large {
    background: var(--white);
    color: var(--text-dark);
    padding: 1rem 2rem;
    font-size: 1rem;
}

.cta-button.large.secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.cta-button.large.secondary:hover {
    background: var(--white);
    color: var(--text-dark);
}

/* === ULTRA FOOTER === */
.footer {
    background: linear-gradient(135deg, var(--text-dark) 0%, var(--text-medium) 100%);
    color: var(--white);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(255,255,255,0.1) 0%, transparent 50%);
    animation: ultraFooterGlow 8s ease-in-out infinite;
}

.footer-spacer {
    height: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.footer-brand {
    animation: ultraFadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-logo {
    height: 60px;
    margin-bottom: 1rem;
    animation: ultraLogoFloat 8s ease-in-out infinite;
}

.footer-brand p {
    color: var(--light-blue);
}

.footer-section {
    animation: ultraFadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s both;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--light-blue);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    padding-left: 0;
}

.footer-section a:hover {
    color: var(--light-blue);
    padding-left: 10px;
}

.footer-section a::before {
    content: '›';
    position: absolute;
    left: -15px;
    opacity: 0;
    transition: all 0.3s ease;
}

.footer-section a:hover::before {
    opacity: 1;
    left: -10px;
}

.contact-info p {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--light-blue);
    transition: all 0.3s ease;
}

.contact-info p:hover {
    transform: translateX(5px);
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.social-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}

.social-links a:hover::before {
    left: 100%;
}

.social-links a:hover {
    background: var(--light-blue);
    transform: translateY(-5px) scale(1.1) rotate(10deg);
    color: var(--text-dark);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--light-blue);
    position: relative;
    z-index: 2;
    animation: ultraFadeIn 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s both;
}

/* === ULTRA WHATSAPP === */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
    animation: ultraWhatsAppFloat 3s ease-in-out infinite;
}

.whatsapp-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: var(--white);
    border-radius: 50%;
    font-size: 1.5rem;
    box-shadow: var(--shadow-xl);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    animation: ultraPulseGreen 2s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

.whatsapp-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.4) 0%, transparent 70%);
    opacity: 0;
    transition: all 0.6s ease;
}

.whatsapp-link:hover::before {
    opacity: 1;
    transform: scale(1.5);
}

.whatsapp-link:hover {
    transform: scale(1.15) rotate(15deg);
    box-shadow: 0 20px 40px rgba(37, 211, 102, 0.4);
    animation: none;
}

/* === ULTRA ANIMATION KEYFRAMES === */
@keyframes ultraFadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 50px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes ultraFadeInDown {
    from {
        opacity: 0;
        transform: translate3d(0, -50px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes ultraFadeInLeft {
    from {
        opacity: 0;
        transform: translate3d(-50px, 0, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes ultraFadeInRight {
    from {
        opacity: 0;
        transform: translate3d(50px, 0, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes ultraSlideInLeft {
    from {
        opacity: 0;
        transform: translate3d(-100px, 0, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes ultraSlideInRight {
    from {
        opacity: 0;
        transform: translate3d(100px, 0, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes ultraPulse3D {
    0%, 100% { 
        transform: translate3d(0, 0, 0) rotateY(0deg) scale(1);
        filter: drop-shadow(0 15px 30px rgba(74, 74, 74, 0.4));
    }
    50% { 
        transform: translate3d(0, -20px, 20px) rotateY(10deg) scale(1.05);
        filter: drop-shadow(0 25px 40px rgba(74, 74, 74, 0.6));
    }
}

@keyframes ultraGlow {
    0%, 100% { 
        filter: drop-shadow(0 0 25px rgba(122, 122, 122, 0.6));
    }
    50% { 
        filter: drop-shadow(0 0 35px rgba(122, 122, 122, 0.9));
    }
}

@keyframes ultraGradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes ultraTextGlow {
    0%, 100% { text-shadow: 0 0 20px rgba(122, 122, 122, 0.5); }
    50% { text-shadow: 0 0 30px rgba(122, 122, 122, 0.8), 0 0 40px rgba(122, 122, 122, 0.6); }
}

@keyframes ultraProgressGlow {
    0%, 100% { 
        box-shadow: 0 0 15px rgba(122, 122, 122, 0.6);
    }
    50% { 
        box-shadow: 0 0 25px rgba(122, 122, 122, 0.9);
    }
}

@keyframes ultraShine {
    0% { transform: translateX(-100%) skewX(-15deg); }
    100% { transform: translateX(200%) skewX(-15deg); }
}

@keyframes ultraLogoFloat {
    0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
    33% { transform: translate3d(0, -5px, 0) rotate(1deg); }
    66% { transform: translate3d(0, 3px, 0) rotate(-1deg); }
}

@keyframes ultraGradientFlow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes ultraOverlayPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.95; transform: scale(1.02); }
}

@keyframes ultraContentReveal {
    from {
        opacity: 0;
        transform: translate3d(0, 100px, 0) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0) scale(1);
    }
}

@keyframes ultraTitleGlow {
    from { 
        text-shadow: 2px 2px 8px rgba(0,0,0,0.4), 0 0 0 rgba(255,255,255,0);
    }
    to { 
        text-shadow: 2px 2px 12px rgba(0,0,0,0.3), 0 0 20px rgba(255,255,255,0.3);
    }
}

@keyframes ultraLineReveal {
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0) rotateX(0deg);
    }
}

@keyframes ultraHighlightGlow {
    0%, 100% { 
        background-position: 0% 50%;
        filter: brightness(1);
    }
    50% { 
        background-position: 100% 50%;
        filter: brightness(1.2);
    }
}

@keyframes ultraMouseFloat {
    0%, 100% { transform: translate3d(0, 0, 0); }
    50% { transform: translate3d(0, -10px, 0); }
}

@keyframes ultraScroll {
    0% { transform: translate3d(-50%, 0, 0); opacity: 1; }
    100% { transform: translate3d(-50%, 15px, 0); opacity: 0; }
}

@keyframes ultraBounce {
    0%, 100% { transform: rotate(45deg) translate3d(0, 0, 0); }
    50% { transform: rotate(45deg) translate3d(0, -10px, 0); }
}

@keyframes ultraIconFloat {
    0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
    50% { transform: translate3d(0, -8px, 0) scale(1.05); }
}

@keyframes ultraBadgePulse {
    0%, 100% { 
        transform: scale(1) rotate(0deg);
        box-shadow: var(--shadow);
    }
    50% { 
        transform: scale(1.05) rotate(5deg);
        box-shadow: var(--shadow-xl);
    }
}

@keyframes ultraCardReveal {
    from {
        opacity: 0;
        transform: translate3d(0, 50px, 0) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0) scale(1);
    }
}

@keyframes ultraServiceIconFloat {
    0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
    33% { transform: translate3d(0, -10px, 0) scale(1.1); }
    66% { transform: translate3d(0, 5px, 0) scale(1.05); }
}

@keyframes ultraScrollReferences {
    0% { transform: translate3d(0, 0, 0); }
    100% { transform: translate3d(calc(-200px * 17 - 3rem * 17), 0, 0); }
}

@keyframes ultraCTAGlow {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

@keyframes ultraFooterGlow {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.05); }
}

@keyframes ultraWhatsAppFloat {
    0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
    33% { transform: translate3d(0, -8px, 0) rotate(3deg); }
    66% { transform: translate3d(0, 4px, 0) rotate(-3deg); }
}

@keyframes ultraPulseGreen {
    0%, 100% { 
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    50% { 
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
}

@keyframes ultraFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* === RESPONSIVE - ULTRA OPTIMIZED === */
@media (max-width: 768px) {
    /* 1. Slider ve Hero Slides Optimizasyonu */
    .hero-slides .slide {
        transition: opacity 0.5s ease !important;
        will-change: auto !important;
    }
    
    .slide::before {
        animation: none !important;
    }
    
    .hero-overlay {
        animation: none !important;
    }

    /* 2. Box-shadow ve Blur Optimizasyonu */
    .header {
        background: #ffffff !important;
        backdrop-filter: none !important;
        box-shadow: 0 2px 10px rgba(30, 30, 30, 0.1) !important;
    }
    
    .header.scrolled {
        background: #ffffff !important;
        backdrop-filter: none !important;
        box-shadow: 0 2px 15px rgba(30, 30, 30, 0.15) !important;
    }
    
    .service-card {
        box-shadow: 0 2px 8px rgba(30, 30, 30, 0.1) !important;
    }
    
    .feature {
        box-shadow: 0 2px 8px rgba(30, 30, 30, 0.1) !important;
    }

    /* 3. Transform ve Will-change Optimizasyonu */
    .feature {
        transform: none !important;
        will-change: auto !important;
    }
    
    .feature:hover {
        transform: translateY(-2px) !important;
    }
    
    .service-card {
        transform: none !important;
        will-change: auto !important;
    }
    
    .service-card:hover {
        transform: translateY(-2px) !important;
    }

    /* 4. Transition Süreleri Optimizasyonu */
    .service-card,
    .feature {
        transition: all 0.2s ease !important;
    }
    
    .service-card::before,
    .feature::before {
        display: none !important;
    }
    
    .service-card:hover::before,
    .feature:hover::before {
        display: none !important;
    }

    /* 5. Arka Planlar ve RGBA Optimizasyonu */
    .header {
        background: #ffffff !important;
    }

    /* 6. Scroll ve Sticky Optimizasyonu */
    html {
        scroll-behavior: auto !important;
    }

    /* 7. Genel Optimizasyonlar */
    .loading-logo,
    .footer-logo,
    .nav-brand .logo {
        animation: none !important;
    }
    
    .feature-icon,
    .service-icon {
        animation: none !important;
    }
    
    .visual-badge {
        animation: none !important;
    }
    
    .references-track {
        animation: ultraScrollReferences 120s linear infinite !important;
    }

    /* Mevcut responsive kurallar */
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
        transform: translateX(-10px);
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -7px);
    }

    .slogan-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-content,
    .about-preview-content {
        grid-template-columns: 1fr;
    }

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

    .hero-actions,
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    section {
        scroll-margin-top: 70px;
        padding: 60px 0;
    }
    
    .section-spacer {
        height: 50px;
    }

    .nav-brand .logo {
        height: 60px;
    }
    
    .loading-logo img {
        width: 120px;
        height: 120px;
    }
    
    .footer-logo {
        height: 50px;
    }

    .about-visual {
        margin-top: 50px;
    }

    .references {
        padding: 40px 0;
    }
    
    .reference-item {
        flex: 0 0 150px;
        padding: 1.5rem;
    }
    
    .reference-item img {
        height: 60px;
    }
    
    .references-track {
        gap: 2rem;
    }
    
    @keyframes ultraScrollReferences {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-150px * 17 - 2rem * 17));
        }
    }
}

@media (max-width: 480px) {
    .reference-item {
        flex: 0 0 120px;
        padding: 1rem;
    }
    
    .reference-item img {
        height: 50px;
    }

    .slogan-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .container {
        padding: 0 1rem;
    }
    
    .cta-button {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

/* Mevcut animasyonları koru */
@keyframes loading {
    0% { width: 0%; }
    100% { width: 100%; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes scroll {
    0% { transform: translateX(-50%) translateY(0); opacity: 1; }
    100% { transform: translateX(-50%) translateY(15px); opacity: 0; }
}

@keyframes bounce {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(-10px); }
}

@keyframes scroll-references {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-200px * 17 - 3rem * 17));
    }
}

.slogan-line {
    display: block;
    /* animation: ultraLineReveal 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards; */
    opacity: 1; /* Geçici olarak opacity: 1 yap */
    transform: none; /* Geçici olarak transform'u kaldır */
}
@media (max-width: 900px) { /* biraz daha geniş yaptım */
    .nav-actions .cta-button {
        display: none !important;
    }
}