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

        :root {
            --primary: #4e73df;
            --primary-dark: #224abe;
            --primary-light: #6f8ce8;
            --secondary: #858796;
            --success: #1cc88a;
            --info: #36b9cc;
            --warning: #f6c23e;
            --danger: #e74a3b;
            --dark: #5a5c69;
            --darker: #3a3b45;
            --light: #f8f9fc;
            --white: #ffffff;
            --shadow: 0 0.15rem 1.75rem 0 rgba(58,59,69,.15);
            --shadow-lg: 0 0.5rem 2rem 0 rgba(58,59,69,.2);
        }

        body {
            font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            overflow-x: hidden;
            background-color: var(--light);
        }

        /* Header - Pirus Style (index.php ile aynı) */
        header {
            background: var(--white);
            box-shadow: var(--shadow);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            transition: all 0.3s ease;
        }

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

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.75rem 5%;
            max-width: 1200px;
            margin: 0 auto;
        }

        .logo {
            display: inline-block;
            text-decoration: none;
            transition: transform 0.3s ease;
        }

        .logo img {
            height: 45px;
            width: auto;
            vertical-align: middle;
        }

        .logo:hover {
            transform: scale(1.05);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            z-index: 1001;
            padding: 5px;
        }

        .hamburger span {
            width: 25px;
            height: 3px;
            background: var(--primary);
            margin: 3px 0;
            transition: 0.3s;
            border-radius: 3px;
        }

        .hamburger.active span:nth-child(1) { transform: rotate(-45deg) translate(-5px, 6px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(45deg) translate(-5px, -6px); }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
            align-items: center;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            transition: color 0.3s ease;
            position: relative;
            font-size: 0.95rem;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            transition: width 0.3s ease;
            border-radius: 2px;
        }

        .nav-links a:hover { color: var(--primary); }
        .nav-links a:hover::after { width: 100%; }
        .nav-links a.active { color: var(--primary); }
        .nav-links a.active::after { width: 100%; }

        .cta-button {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #ffffff !important;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 700;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(78, 115, 223, 0.3);
            border: none;
            cursor: pointer;
        }
        
        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(78, 115, 223, 0.4);
            color: #ffffff !important;
        }

        .cta-button::after { display: none; }

        /* Page Header */
        .page-header {
            background: linear-gradient(180deg, #4e73df 10%, #224abe 100%);
            padding: 140px 5% 80px;
            text-align: center;
            color: var(--white);
            position: relative;
            overflow: hidden;
        }

        .page-header::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: url('images/hero-slider.png') no-repeat center center;
            background-size: cover;
            opacity: 0.1;
            z-index: 0;
        }

        .page-header::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: 0; right: 0;
            height: 100px;
            background: var(--light);
            border-radius: 50% 50% 0 0;
            transform: scaleX(1.5);
        }

        .page-header-content {
            position: relative;
            z-index: 1;
        }

        .page-header h1 {
            font-size: 2.8rem;
            margin-bottom: 1rem;
            font-weight: 800;
            text-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        .page-header p {
            font-size: 1.2rem;
            opacity: 0.95;
            max-width: 700px;
            margin: 0 auto;
        }

        .breadcrumb {
            margin-bottom: 1rem;
            font-size: 0.9rem;
            opacity: 0.8;
        }

        .breadcrumb a {
            color: white;
            text-decoration: none;
        }

        .breadcrumb a:hover { text-decoration: underline; }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 5%;
        }

        .section { padding: 80px 0; }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--darker);
            position: relative;
            font-weight: 800;
        }

        .section-subtitle {
            text-align: center;
            color: var(--secondary);
            margin-bottom: 3rem;
            font-size: 1.1rem;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--success));
            margin: 1rem auto;
            border-radius: 2px;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 1.5rem;
        }

        .feature-card {
            background: var(--white);
            padding: 2rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            border: 1px solid rgba(0,0,0,0.03);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--success));
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .feature-card:hover::before { transform: scaleX(1); }
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .feature-card h3 {
            font-size: 1.25rem;
            margin-bottom: 1rem;
            color: var(--darker);
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .feature-card h3 .icon { font-size: 1.75rem; }

        .feature-card p {
            color: var(--secondary);
            line-height: 1.8;
            font-size: 0.95rem;
            margin-bottom: 1rem;
        }

        .feature-card ul {
            list-style: none;
            padding: 0;
        }

        .feature-card ul li {
            padding: 0.5rem 0;
            color: var(--dark);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .feature-card ul li::before {
            content: '✓';
            color: var(--success);
            font-weight: bold;
            background: rgba(28, 200, 138, 0.1);
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            flex-shrink: 0;
        }

        .highlight-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 3rem;
            border-radius: 16px;
            text-align: center;
            margin: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .highlight-box::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></svg>') repeat;
            background-size: 100px;
        }

        .highlight-box h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
            position: relative;
        }

        .highlight-box p {
            font-size: 1.1rem;
            opacity: 0.95;
            margin-bottom: 2rem;
            position: relative;
        }

        .demo-button {
            background: var(--success);
            color: var(--white);
            padding: 1rem 2rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 700;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: 0 4px 15px rgba(28, 200, 138, 0.3);
            position: relative;
        }

        .demo-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(28, 200, 138, 0.4);
            background: #17a673;
            color: white;
        }

        .comparison-section {
            background: var(--white);
            padding: 80px 0;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 2rem;
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .comparison-table th, .comparison-table td {
            padding: 1rem 1.5rem;
            text-align: left;
            border-bottom: 1px solid #e3e6f0;
        }

        .comparison-table th {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            font-weight: 700;
        }

        .comparison-table tr:hover { background: var(--light); }
        .comparison-table tr:last-child td { border-bottom: none; }
        .comparison-table .check { color: var(--success); font-size: 1.2rem; }
        .comparison-table .cross { color: var(--danger); font-size: 1.2rem; }

        .category-title {
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 700;
        }

        .category-title i {
            width: 45px;
            height: 45px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2rem;
        }

        .whatsapp-float {
            position: fixed;
            bottom: 30px;
            left: 30px;
            background: #25d366;
            color: white;
            border-radius: 50%;
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
            cursor: pointer;
            transition: all 0.3s ease;
            z-index: 999;
            animation: pulse 2s infinite;
            text-decoration: none;
        }

        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
            70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
            100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
        }

        .whatsapp-float:hover {
            transform: scale(1.1);
            box-shadow: 0 5px 25px rgba(37, 211, 102, 0.5);
        }

        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            border-radius: 12px;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 4px 20px rgba(78, 115, 223, 0.4);
            cursor: pointer;
            transition: all 0.3s ease;
            opacity: 0;
            visibility: hidden;
            z-index: 998;
        }

        .scroll-top.show { opacity: 1; visibility: visible; }
        .scroll-top:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 25px rgba(78, 115, 223, 0.5);
        }

        footer {
            background: linear-gradient(180deg, #3a3b45 0%, #2d2d37 100%);
            color: var(--white);
            padding: 60px 5% 30px;
            text-align: center;
        }

        .footer-content { max-width: 1200px; margin: 0 auto; }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-links a:hover {
            color: var(--white);
            transform: translateY(-2px);
        }

        .footer-bottom {
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

        .footer-bottom a {
            color: var(--primary-light);
            text-decoration: none;
        }

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

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .animate { animation: fadeInUp 0.6s ease forwards; }

        @media (max-width: 768px) {
            .hamburger { display: flex; }
            .nav-links {
                position: fixed;
                right: -100%;
                top: 70px;
                flex-direction: column;
                background-color: white;
                width: 100%;
                text-align: center;
                transition: 0.3s;
                box-shadow: var(--shadow-lg);
                padding: 2rem 0;
            }
            .nav-links.active { right: 0; }
            .nav-links li { margin: 1rem 0; }
            .page-header { padding: 120px 5% 60px; }
            .page-header h1 { font-size: 2rem; }
            .page-header p { font-size: 1rem; }
            .section-title { font-size: 1.75rem; }
            .features-grid { grid-template-columns: 1fr; }
            .comparison-table { font-size: 0.85rem; }
            .comparison-table th, .comparison-table td { padding: 0.75rem; }
            .whatsapp-float { width: 55px; height: 55px; font-size: 26px; bottom: 20px; left: 20px; }
            .scroll-top { right: 20px; bottom: 20px; width: 45px; height: 45px; }
            .highlight-box { padding: 2rem 1.5rem; }
            .highlight-box h2 { font-size: 1.5rem; }
        }