:root {
            /* Modern Renk Paleti */
            --primary: #4F46E5;
            --primary-dark: #3730A3;
            --secondary: #9333EA;
            --accent: #06B6D4;
            --dark: #0F172A;
            --dark-light: #1E293B;
            --light: #F8FAFC;
            --surface: rgba(255, 255, 255, 0.85);
            --border-light: rgba(255, 255, 255, 0.5);
            --shadow-soft: 0 20px 40px -10px rgba(0, 0, 0, 0.1);
            --shadow-glow: 0 0 20px rgba(79, 70, 229, 0.3);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Plus Jakarta Sans', sans-serif;
            background-color: var(--light);
            color: var(--dark);
            overflow-x: hidden;
            line-height: 1.7;
        }
        
        /* Smooth Scroll */
        html {
            scroll-behavior: smooth;
        }

        /* --- Background Animation Canvas --- */
        #neural-canvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
            opacity: 0.6;
        }

        /* --- Modern Header --- */
        .main-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 1rem 0;
            transition: all 0.4s ease;
        }
        
        .main-header.scrolled {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 0.8rem 0;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
        }
        
        .logo-text {
            font-weight: 800;
            font-size: 1.8rem;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -1px;
            line-height: 1;
        }

        .nav-link {
            font-weight: 600;
            color: var(--dark-light);
            padding: 0.5rem 1.2rem !important;
            position: relative;
            transition: color 0.3s ease;
        }
        
        .nav-link::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }
        
        .nav-link:hover::before {
            width: 80%;
        }
        
        .nav-link:hover {
            color: var(--primary);
        }

        .btn-nav {
            background: var(--dark);
            color: white;
            padding: 0.6rem 1.5rem;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            transition: all 0.3s ease;
        }
        
        .btn-nav:hover {
            background: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
            color: white;
        }

        /* --- Hero Section --- */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: 100px;
            overflow: hidden;
            background: radial-gradient(circle at 10% 20%, rgba(79, 70, 229, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 90% 80%, rgba(147, 51, 234, 0.05) 0%, transparent 40%);
        }

        .hero-title {
            font-size: 4rem;
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -2px;
            margin-bottom: 1.5rem;
        }
        
        .text-gradient {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: #64748B;
            margin-bottom: 2.5rem;
            max-width: 500px;
        }

        .btn-hero-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 12px;
            font-weight: 600;
            border: none;
            box-shadow: 0 10px 25px rgba(79, 70, 229, 0.3);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 35px rgba(79, 70, 229, 0.4);
            color: white;
        }

        /* --- AI Widget Animation Showcase --- */
        .ai-showcase-wrapper {
            position: relative;
            z-index: 2;
            perspective: 1000px;
        }

        .ai-interface {
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.8);
            border-radius: 24px;
            box-shadow: var(--shadow-soft);
            max-width: 400px;
            margin: 0 auto;
            transform: rotateY(-5deg) rotateX(5deg);
            transition: transform 0.5s ease;
            animation: float-ui 6s ease-in-out infinite;
            overflow: hidden;
        }

        .ai-interface:hover {
            transform: rotateY(0deg) rotateX(0deg) scale(1.02);
        }

        @keyframes float-ui {
            0%, 100% { transform: rotateY(-5deg) rotateX(5deg) translateY(0); }
            50% { transform: rotateY(-5deg) rotateX(5deg) translateY(-20px); }
        }

        .interface-header {
            background: linear-gradient(to right, rgba(255,255,255,0.8), rgba(255,255,255,0.4));
            padding: 1rem 1.5rem;
            border-bottom: 1px solid rgba(0,0,0,0.05);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .interface-body {
            padding: 1.5rem;
            height: 400px;
            overflow: hidden;
            position: relative;
            background: linear-gradient(180deg, rgba(248,250,252,0.5) 0%, rgba(255,255,255,0.8) 100%);
        }

        /* Chat Bubbles Animation */
        .msg-bubble {
            max-width: 80%;
            padding: 0.8rem 1rem;
            border-radius: 16px;
            margin-bottom: 1rem;
            font-size: 0.9rem;
            opacity: 0;
            transform: translateY(20px);
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        }

        .msg-ai {
            background: white;
            color: var(--dark);
            border-bottom-left-radius: 4px;
            margin-right: auto;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .msg-user {
            background: var(--primary);
            color: white;
            border-bottom-right-radius: 4px;
            margin-left: auto;
        }

        .typing-dots {
            display: flex;
            gap: 4px;
            padding: 0.5rem 1rem;
            background: white;
            border-radius: 20px;
            width: fit-content;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            opacity: 0;
        }

        .dot {
            width: 6px;
            height: 6px;
            background: #CBD5E1;
            border-radius: 50%;
            animation: bounce 1.4s infinite ease-in-out both;
        }

        .dot:nth-child(1) { animation-delay: -0.32s; }
        .dot:nth-child(2) { animation-delay: -0.16s; }

        @keyframes bounce {
            0%, 80%, 100% { transform: scale(0); }
            40% { transform: scale(1); }
        }

        /* --- Stats Section (Glass Cards) --- */
        .stats-container {
            background: var(--surface);
            backdrop-filter: blur(10px);
            border: 1px solid white;
            border-radius: 24px;
            box-shadow: var(--shadow-soft);
            padding: 3rem;
            margin-top: -80px;
            position: relative;
            z-index: 10;
        }

        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }

        /* --- Features (Bento Grid Style) --- */
        .section-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .badge-pill {
            background: rgba(79, 70, 229, 0.1);
            color: var(--primary);
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 1rem;
            display: inline-block;
        }

        .feature-card {
            background: white;
            border: 1px solid #F1F5F9;
            border-radius: 24px;
            padding: 2.5rem;
            transition: all 0.4s ease;
            height: 100%;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(147, 51, 234, 0.05) 100%);
            opacity: 0;
            transition: opacity 0.4s ease;
            z-index: -1;
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-soft);
            border-color: rgba(79, 70, 229, 0.2);
        }

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

        .feature-icon-box {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 10px 20px rgba(79, 70, 229, 0.3);
        }

        /* --- Dark Section (Benefits) --- */
        .dark-section {
            background-color: var(--dark);
            color: white;
            position: relative;
            overflow: hidden;
        }

        .dark-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(79, 70, 229, 0.2) 0%, transparent 70%);
            z-index: 0;
        }

        .benefit-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            padding: 2rem;
            border-radius: 20px;
            transition: all 0.3s ease;
        }

        .benefit-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(10px);
            border-color: var(--primary);
        }

        /* --- Use Cases --- */
        .use-case-item {
            display: flex;
            align-items: flex-start;
            gap: 1.5rem;
            padding: 2rem;
            border-bottom: 1px solid #E2E8F0;
            transition: background 0.3s;
        }

        .use-case-item:hover {
            background: #F8FAFC;
        }

        .use-case-icon {
            width: 50px;
            height: 50px;
            background: #F1F5F9;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
            color: var(--primary);
        }

        /* --- Testimonials --- */
        .testimonial-card {
            background: white;
            padding: 2.5rem;
            border-radius: 24px;
            border: 1px solid #F1F5F9;
            position: relative;
        }

        .quote-icon {
            position: absolute;
            top: 2rem;
            right: 2rem;
            font-size: 3rem;
            color: #F1F5F9;
            z-index: 0;
        }

        /* --- Footer --- */
        footer {
            background: white;
            padding-top: 5rem;
            border-top: 1px solid #E2E8F0;
        }

        .footer-link {
            color: #64748B;
            text-decoration: none;
            display: block;
            margin-bottom: 0.8rem;
            transition: color 0.3s;
        }

        .footer-link:hover {
            color: var(--primary);
        }

        /* Meta Tech Provider rozeti (footer) */
        .footer-meta-provider > div {
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            background: linear-gradient(145deg, #f8fafc 0%, #eef2ff 55%, #f0f9ff 100%);
            border: 1px solid #e2e8f0;
            box-shadow: 0 8px 32px rgba(0, 100, 224, 0.08);
        }

        .footer-meta-logo {
            height: 36px;
            width: auto;
            max-width: 72px;
            object-fit: contain;
            display: block;
        }

        @media (max-width: 575.98px) {
            .footer-meta-logo {
                height: 32px;
            }
        }

        /* --- Loading Screen --- */
        #loader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: white;
            z-index: 9999;
            display: flex;
            justify-content: center;
            align-items: center;
            transition: opacity 0.5s ease;
        }

        .spinner-loader {
            width: 50px;
            height: 50px;
            border: 4px solid #F1F5F9;
            border-top: 4px solid var(--primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

        /* --- Responsive Design --- */
        @media (max-width: 992px) {
            .hero-title { font-size: 3rem; }
            .ai-interface { margin-top: 3rem; transform: none; animation: none; }
            .ai-interface:hover { transform: none; }
            .stats-container { margin-top: 2rem; }
        }

        @media (max-width: 768px) {
            .hero-title { font-size: 2.5rem; }
            .main-header .container { padding: 0 1rem; }
            .navbar-collapse {
                background: white;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                padding: 2rem;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-radius: 0 0 20px 20px;
            }
        }

        /* --- Privacy / Legal subpage (anasayfa ile aynı tema) --- */
        .legal-subpage {
            position: relative;
            min-height: 100vh;
            padding-top: 100px;
            padding-bottom: 3rem;
            overflow: hidden;
            background: radial-gradient(circle at 10% 20%, rgba(79, 70, 229, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 90% 80%, rgba(147, 51, 234, 0.05) 0%, transparent 40%);
        }
        .legal-inner-card {
            background: var(--surface);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.8);
            border-radius: 24px;
            box-shadow: var(--shadow-soft);
            padding: 2rem 2.25rem;
        }
        @media (min-width: 768px) {
            .legal-inner-card { padding: 2.5rem 3rem; }
        }
        .lang-tabs-legal {
            border-bottom: 1px solid #E2E8F0;
            margin-bottom: 1.5rem;
            display: flex;
            gap: 0.25rem;
        }
        .lang-tabs-legal a {
            display: inline-block;
            padding: 0.65rem 1.1rem;
            color: #64748B;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            border-bottom: 3px solid transparent;
            margin-bottom: -1px;
            transition: color 0.2s, border-color 0.2s;
        }
        .lang-tabs-legal a:hover { color: var(--primary); }
        .lang-tabs-legal a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }
        .privacy-section-legal { margin-bottom: 1.75rem; }
        .privacy-section-legal h2 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.65rem;
            padding-bottom: 0.4rem;
            border-bottom: 1px solid #E2E8F0;
        }
        .privacy-section-legal ul { padding-left: 1.25rem; margin-top: 0.5rem; }
        .muted-legal { color: #64748B; font-size: 0.95rem; }
        .legal-page-title {
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 0.5rem;
        }