:root {
            --bg-light: #f5f5f7;
            --text-dark: #1d1d1f;
            --text-muted: #86868b;
            --accent: #2997ff;
            --card-bg: rgba(255, 255, 255, 0.8);
            --card-border: rgba(0, 0, 0, 0.06);
            --hero-overlay: rgba(0, 0, 0, 0.45);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        }

        body {
            background-color: var(--bg-light);
            color: var(--text-dark);
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

        /* HERO SECTION with Video */
        .hero {
            position: relative;
            height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            overflow: hidden;
        }

        .hero-video-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--hero-overlay);
            z-index: 1;
            pointer-events: none;
        }

        .hero-sticky {
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 100%;
            z-index: 2;
        }

        .hero-content {
            position: relative;
            z-index: 10;
            max-width: 900px;
            text-align: center;
            padding: 0 20px;
        }

        .hero-subtitle {
            color: var(--accent);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 20px;
            display: block;
            opacity: 0;
        }

        .hero-title {
            font-size: 86px;
            font-weight: 700;
            line-height: 1.05;
            letter-spacing: -3px;
            margin-bottom: 25px;
            opacity: 0;
            color: #fff;
        }

        .hero-title span {
            color: rgba(255, 255, 255, 0.5);
        }

        .hero-desc {
            font-size: 21px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.5;
            margin: 0 auto 40px auto;
            max-width: 650px;
            font-weight: 400;
            letter-spacing: -0.5px;
            opacity: 0;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            opacity: 0;
        }

        .btn-primary-light {
            background: #fff;
            color: var(--text-dark);
            padding: 14px 28px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 500;
            font-size: 15px;
            transition: transform 0.2s, opacity 0.2s;
        }

        .btn-primary-light:hover {
            opacity: 0.9;
            transform: scale(1.02);
        }

        .btn-play-light {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            padding: 14px 28px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 500;
            font-size: 15px;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .btn-play-light:hover {
            background: rgba(255, 255, 255, 0.25);
        }

        .btn-play-light i {
            font-size: 12px;
        }

        .water-line {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 100px;
            background: linear-gradient(to top, rgba(41, 151, 255, 0.08), transparent);
            z-index: 2;
            pointer-events: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        /* ===== HAKKIMIZDA SECTION ===== */
        .about-section {
            background: var(--bg-light);
            padding: 70px 20px 70px;
            position: relative;
            z-index: 10;
        }

        .about-container {
            max-width: 1100px;
            margin: 0 auto;
        }

        .about-header {
            text-align: center;
            margin-bottom: 80px;
        }

        .about-badge {
            display: inline-block;
            color: var(--accent);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .about-title {
            font-size: 56px;
            font-weight: 700;
            letter-spacing: -2px;
            line-height: 1.1;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .about-title span {
            color: var(--text-muted);
        }

        .about-desc {
            font-size: 19px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 700px;
            margin: 0 auto;
            font-weight: 400;
            letter-spacing: -0.3px;
        }

        /* About Content - Text + Visual */
        .about-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-text-col h3 {
            font-size: 32px;
            font-weight: 600;
            letter-spacing: -1px;
            margin-bottom: 20px;
            line-height: 1.2;
            color: var(--text-dark);
        }

        .about-text-col p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .about-visual-col {
            position: relative;
        }

        .about-image-wrapper {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid var(--card-border);
            aspect-ratio: 16/10;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        .about-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        /* ===== HİZMETLER SECTION ===== */
        .services-section {
            min-height: 100vh;
            background: var(--bg-light);
            padding: 70px 20px 70px;
            position: relative;
            z-index: 10;
        }

        .services-container {
            max-width: 1100px;
            margin: 0 auto;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 24px;
            backdrop-filter: blur(10px);
            transition: transform 0.4s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            position: relative;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0;
            transition: opacity 0.4s ease;
            z-index: 2;
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-card:hover {
            transform: translateY(-6px);
            border-color: rgba(41, 151, 255, 0.15);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
        }

        .service-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
            transition: transform 0.6s ease;
        }

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

        .service-card-body {
            padding: 24px 28px 32px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .service-card-badge {
            font-size: 11px;
            font-weight: 500;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 2px;
        }

        .service-card h3 {
            font-size: 22px;
            font-weight: 600;
            letter-spacing: -0.5px;
            color: var(--text-dark);
            margin: 0;
            line-height: 1.25;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            letter-spacing: -0.1px;
        }

        /* ===== İLETİŞİM SECTION ===== */
        .contact-section {
            min-height: 80vh;
            background: radial-gradient(circle at 10% 20%, rgba(245, 245, 247, 1) 0%, rgba(240, 242, 245, 1) 90%);
            padding: 90px 20px 90px;
            position: relative;
            z-index: 10;
            border-top: 1px solid rgba(0, 0, 0, 0.04);
        }

        .contact-container {
            max-width: 1150px;
            margin: 0 auto;
        }

        .contact-header {
            text-align: center;
            margin-bottom: 70px;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.1fr 1.2fr;
            gap: 50px;
            align-items: stretch;
        }

        .contact-info-col {
            background: rgba(255, 255, 255, 0.55);
            border: 1px solid rgba(255, 255, 255, 0.7);
            border-radius: 28px;
            padding: 45px;
            backdrop-filter: blur(20px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .contact-info-col:hover {
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.04);
        }

        .contact-info-col h3 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -1px;
            margin-bottom: 16px;
            color: var(--text-dark);
            background: linear-gradient(135deg, var(--text-dark), #434345);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .contact-info-col>p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 40px;
            letter-spacing: -0.1px;
        }

        .contact-detail {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 16px;
            border-radius: 18px;
            background: rgba(255, 255, 255, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.4);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            margin-bottom: 16px;
        }

        .contact-detail:last-child {
            margin-bottom: 0;
        }

        .contact-detail:hover {
            transform: translateX(6px);
            background: rgba(255, 255, 255, 0.9);
            border-color: rgba(41, 151, 255, 0.2);
            box-shadow: 0 8px 24px rgba(41, 151, 255, 0.06);
        }

        .contact-detail-icon {
            width: 48px;
            height: 48px;
            min-width: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(41, 151, 255, 0.1), rgba(41, 151, 255, 0.05));
            border: 1px solid rgba(41, 151, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent);
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(41, 151, 255, 0.03);
        }

        .contact-detail:hover .contact-detail-icon {
            background: linear-gradient(135deg, var(--accent), #0071e3);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 8px 20px rgba(41, 151, 255, 0.25);
            transform: scale(1.05);
        }

        .contact-detail-text h4 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 2px;
            color: var(--text-dark);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .contact-detail-text p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
            font-weight: 500;
        }

        .contact-form-col {
            background: #fff;
            border: 1px solid rgba(0, 0, 0, 0.04);
            border-radius: 28px;
            padding: 45px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.03);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .contact-form-col:hover {
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.05);
        }

        .form-group {
            margin-bottom: 22px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 16px 20px;
            background: rgba(245, 245, 247, 0.6);
            border: 1px solid rgba(0, 0, 0, 0.05);
            border-radius: 16px;
            color: var(--text-dark);
            font-size: 15px;
            font-family: 'Inter', sans-serif;
            outline: none;
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.01) inset;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            background: #fff;
            border-color: var(--accent);
            box-shadow: 0 8px 24px rgba(41, 151, 255, 0.12);
            transform: translateY(-1px);
        }

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

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .form-submit {
            background: linear-gradient(135deg, var(--accent), #0071e3);
            color: #fff;
            border: none;
            padding: 16px 32px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            width: 100%;
            letter-spacing: 0.3px;
            box-shadow: 0 4px 15px rgba(41, 151, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .form-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(41, 151, 255, 0.45);
            opacity: 1;
        }

        .form-submit:active {
            transform: translateY(0);
        }

        /* ===== FOOTER ===== */
        .footer {
            background: #e8e8ed;
            color: var(--text-muted);
            padding: 40px 20px 24px;
            position: relative;
            z-index: 10;
        }

        .footer-container {
            max-width: 1100px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }

        .footer-logo {
            height: 60px;
            width: auto;
        }

        .footer-social {
            display: flex;
            gap: 16px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            text-decoration: none;
            font-size: 14px;
            transition: background 0.2s, color 0.2s;
        }

        .footer-social a:hover {
            background: rgba(41, 151, 255, 0.15);
            color: var(--accent);
        }

        .footer-divider {
            width: 100%;
            max-width: 300px;
            height: 1px;
            background: rgba(0, 0, 0, 0.08);
        }

        .footer-copyright {
            font-size: 11px;
            color: rgba(0, 0, 0, 0.4);
            letter-spacing: 0.3px;
        }

        /* ===== REVEAL ANIMATION BASE CLASSES ===== */
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .reveal-left {
            opacity: 0;
            transform: translateX(-50px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .reveal-left.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .reveal-right {
            opacity: 0;
            transform: translateX(50px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .reveal-right.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .reveal-stagger>* {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }

        .reveal-stagger.visible>* {
            opacity: 1;
            transform: translateY(0);
        }

        .reveal-stagger>*:nth-child(1) {
            transition-delay: 0s;
        }

        .reveal-stagger>*:nth-child(2) {
            transition-delay: 0.1s;
        }

        .reveal-stagger>*:nth-child(3) {
            transition-delay: 0.2s;
        }

        .reveal-stagger>*:nth-child(4) {
            transition-delay: 0.3s;
        }

        .reveal-stagger>*:nth-child(5) {
            transition-delay: 0.4s;
        }

        .reveal-stagger>*:nth-child(6) {
            transition-delay: 0.5s;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 64px;
            }

            .about-title {
                font-size: 44px;
            }

            .about-content-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 48px;
                letter-spacing: -1px;
            }

            .hero-desc {
                font-size: 18px;
            }

            .about-title {
                font-size: 36px;
            }

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

            .form-row {
                grid-template-columns: 1fr;
            }
        }