@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
        
        body {
            font-family: 'Inter', sans-serif;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            background: linear-gradient(to bottom, #f5f3ff 0%, #fff5f0 50%, #f0fffc 100%);
        }
        
        /* Banner sekce */
        .banner-section {
            width: 100%;
            height: 350px;
            position: relative;
            overflow: hidden;
            background: #f0f0f0;
        }
        
        .banner-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .banner-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(to bottom, rgba(255,255,255,0.1), rgba(255,255,255,0.7));
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
        }
        
        .banner-title {
            color: #333;
            font-size: 4rem;
            font-weight: 700;
            text-shadow: 0 2px 20px rgba(255,255,255,0.8);
            margin: 0;
            animation: fadeInUp 0.8s ease-out;
            background: linear-gradient(135deg, #ff006e, #8338ec, #3a86ff, #06ffa5);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .banner-subtitle {
            color: #555;
            font-size: 1.4rem;
            margin-top: 0.5rem;
            font-weight: 500;
            text-shadow: 0 1px 10px rgba(255,255,255,0.8);
            animation: fadeInUp 0.8s ease-out 0.2s both;
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* Hlavní obsah */
        .main-content {
            max-width: 1200px;
            margin: -80px auto 0;
            padding: 0 2rem 2rem;
            position: relative;
            z-index: 10;
        }
        
        .demo-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 25px;
            padding: 3rem;
            box-shadow: 0 20px 60px rgba(0,0,0,0.08);
            border: 1px solid rgba(255,255,255,0.8);
        }
        
        .features {
            background: linear-gradient(135deg, rgba(138,56,236,0.05), rgba(58,134,255,0.05));
            border-radius: 15px;
            padding: 2rem;
            margin-bottom: 3rem;
            border: 1px solid rgba(138,56,236,0.1);
            position: relative;
            overflow: hidden;
        }
        
        .features::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, #ff006e, #8338ec, #3a86ff);
        }
        
        .features h3 {
            margin-top: 0;
            color: #333;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.3rem;
        }
        
        .features ul {
            margin: 0;
            padding-left: 1.5rem;
            color: #555;
            line-height: 1.8;
        }
        
        .features li {
            margin-bottom: 0.5rem;
        }
        
        .demo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }
        
        .demo-card {
            background: white;
            border-radius: 20px;
            padding: 2.5rem 2rem;
            text-align: center;
            transition: all 0.3s ease;
            border: 2px solid #f0f0f0;
            position: relative;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
        }
        
        .demo-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.1);
            border-color: var(--card-color);
        }
        
        .demo-card.mood { 
            --card-gradient: linear-gradient(135deg, #ff006e, #c10055);
            --card-color: #ff006e;
        }
        .demo-card.understanding { 
            --card-gradient: linear-gradient(135deg, #8338ec, #6a1eb0);
            --card-color: #8338ec;
        }
        .demo-card.preference { 
            --card-gradient: linear-gradient(135deg, #ffb700, #ff8c00);
            --card-color: #ffb700;
        }
        .demo-card.agreement { 
            --card-gradient: linear-gradient(135deg, #06ffa5, #00d084);
            --card-color: #06ffa5;
        }
        
        .demo-card:hover .demo-icon {
            transform: scale(1.1);
        }
        
        .demo-icon {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            display: inline-block;
            transition: transform 0.3s ease;
            filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
        }
        
        .demo-title {
            font-size: 1.4rem;
            font-weight: 600;
            color: #333;
            margin-bottom: 0.8rem;
        }
        
        .demo-description {
            color: #666;
            margin-bottom: 2rem;
            line-height: 1.7;
            font-size: 0.95rem;
        }
        
        .demo-button {
            display: inline-block;
            background: var(--card-gradient);
            color: white;
            padding: 0.9rem 2.2rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            width: 230px;
            box-sizing: border-box;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            position: relative;
            overflow: hidden;
        }
        
        .demo-button::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255,255,255,0.3);
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
        }
        
        .demo-button:hover::before {
            width: 300px;
            height: 300px;
        }
        
        .demo-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }
        
        .demo-button-secondary {
            background: white;
            color: var(--card-color);
            border: 2px solid var(--card-color);
            margin-top: 0.8rem;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .demo-button-secondary:hover {
            background: var(--card-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }
        
        /* Nová sekce pro administraci */
        .admin-service-section {
            margin: 4rem 0 3rem;
        }
        
        .admin-service-card {
            background: linear-gradient(135deg, rgba(138,56,236,0.03), rgba(255,0,110,0.03));
            border: 2px solid rgba(138,56,236,0.1);
            border-radius: 25px;
            padding: 3rem 1.5rem;  /* Změněno z "3rem" na "3rem 1.5rem" */
            text-align: center;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .admin-service-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(138,56,236,0.1);
            border-color: rgba(138,56,236,0.2);
        }
        
        .admin-service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, #ff006e, #8338ec, #3a86ff);
        }
        
        .admin-icon {
            font-size: 4rem;
            margin-bottom: 1.5rem;
            display: inline-block;
            animation: float 3s ease-in-out infinite;
        }
        
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }
        
        .admin-title {
            font-size: 2.2rem;
            color: #333;
            margin-bottom: 2rem;
            font-weight: 700;
        }
        
        .admin-description {
            max-width: 100%;  /* místo 800px */
            margin: 0 auto;
            text-align: left;
        }
        
        .admin-description p {
            font-size: 1.1rem;
            color: #555;
            line-height: 1.8;
            margin-bottom: 2rem;
            text-align: center;
        }
        
        .admin-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;  /* místo 1.5rem */
            margin: 1.5rem 0;  /* místo 2rem 0 */
        }
        
        .admin-feature {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem;
            background: white;
            border-radius: 12px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            transition: all 0.2s ease;
        }
        
        .admin-feature:hover {
            transform: translateX(5px);
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
        }
        
        .feature-check {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, #4caf50, #45a049);
            color: white;
            border-radius: 50%;
            font-weight: bold;
            flex-shrink: 0;
        }
        
        .admin-feature span:last-child {
            color: #333;
            font-weight: 500;
        }
        
        .admin-highlight {
            background: linear-gradient(135deg, rgba(255,193,7,0.1), rgba(255,152,0,0.1));
            border-left: 4px solid #ff9800;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            font-size: 1.05rem;
        }
        
        .admin-button {
            display: inline-flex;
            align-items: center;
            gap: 0.8rem;
            background: linear-gradient(135deg, #8338ec, #ff006e);
            color: white;
            padding: 1.2rem 2.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 10px 30px rgba(131,56,236,0.3);
            margin-top: 2rem;
        }
        
        .admin-button:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 15px 40px rgba(131,56,236,0.4);
        }
        
        .admin-button svg {
            flex-shrink: 0;
        }
        
        .footer {
            text-align: center;
            color: #666;
            font-size: 0.9rem;
            padding-top: 2rem;
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, #8338ec, transparent) 1;
        }
        
        .footer a {
            background: linear-gradient(135deg, #ff006e, #8338ec);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            font-weight: 600;
            transition: opacity 0.3s ease;
        }
        
        .footer a:hover {
            opacity: 0.7;
        }
        
        /* Úvodní sekce */
        .intro-section {
            text-align: center;
            margin-bottom: 4rem;
        }
        
        .intro-section h2 {
            font-size: 2.2rem;
            color: #333;
            margin-bottom: 1.5rem;
            font-weight: 700;
            line-height: 1.3;
        }
        
        .intro-text {
            font-size: 1.1rem;
            color: #555;
            line-height: 1.8;
            max-width: 800px;
            margin: 0 auto 3rem;
        }
        
        /* Benefity grid */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 4rem;
        }
        
        .benefit-item {
            text-align: center;
            padding: 2rem 1.5rem;
            border-radius: 15px;
            background: rgba(138, 56, 236, 0.03);
            border: 1px solid rgba(138, 56, 236, 0.1);
            transition: all 0.3s ease;
        }
        
        .benefit-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(138, 56, 236, 0.1);
            background: rgba(138, 56, 236, 0.05);
        }
        
        .benefit-icon {
            font-size: 3rem;
            display: block;
            margin-bottom: 1rem;
            filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
        }
        
        .benefit-item h3 {
            font-size: 1.3rem;
            color: #333;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        
        .benefit-item p {
            color: #666;
            line-height: 1.6;
            margin: 0;
        }
        
        /* Use cases sekce */
        .use-cases-section {
            background: linear-gradient(135deg, rgba(255,0,110,0.03), rgba(58,134,255,0.03));
            border-radius: 20px;
            padding: 3rem;
            margin-bottom: 3rem;
            border: 1px solid rgba(138, 56, 236, 0.08);
        }
        
        .use-cases-text {
            font-size: 1.15rem;
            line-height: 1.9;
            color: #555;
            text-align: center;
            margin: 0;
        }
        
        .use-cases-text strong {
            color: #8338ec;
            font-weight: 600;
        }
        
        /* Jak to funguje sekce */
        .how-it-works-section {
            text-align: center;
            margin: 4rem 0;
            padding: 2rem 0 1rem 0;
            border-top: 1px solid rgba(138, 56, 236, 0.1);
            border-bottom: 1px solid rgba(138, 56, 236, 0.1);
        }
        
        .how-it-works-section h2 {
            font-size: 2rem;
            color: #333;
            margin-bottom: 0.5rem;
        }
        
        .section-subtitle {
            color: #666;
            font-size: 1.1rem;
            margin-bottom: 3rem;
        }
        
        .steps-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr auto 1fr;
            align-items: center;
            gap: 2rem;
            max-width: 900px;
            margin: 0 auto;
        }
        
        .step-item {
            text-align: center;
        }
        
        .step-number {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #ff006e, #8338ec);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: bold;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 15px rgba(131, 56, 236, 0.3);
        }
        
        .step-item h3 {
            font-size: 1.2rem;
            color: #333;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        
        .step-item p {
            color: #666;
            margin: 0;
        }
        
        .step-arrow {
            font-size: 2rem;
            color: #ddd;
            font-weight: 300;
        }
        
        /* NOVÁ SEKCE - Jak to vypadá */
        .how-it-looks-section {
            text-align: center;
            margin: 1rem 0;
            padding: 1rem 0 3rem 0;
            border-bottom: 1px solid rgba(138, 56, 236, 0.1);
        }
        
        .how-it-looks-section h2 {
            font-size: 2rem;
            color: #333;
            margin-bottom: 0.5rem;
        }
        
        .screenshots-container {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 3rem;
            max-width: 1100px;
            margin: 0 auto;
            align-items: start;
        }
        
        .screenshot-item {
            text-align: center;
        }
        
        .screenshot-image-wrapper {
            position: relative;
            overflow: hidden;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
            margin-bottom: 1.5rem;
            background: #f8f8f8;
        }
        
        .screenshot-image-wrapper:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 60px rgba(0,0,0,0.15);
        }
        
        .screenshot-image-wrapper img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.3s ease;
        }
        
        .screenshot-image-wrapper:hover img {
            transform: scale(1.05);
        }
        
        .screenshot-item h3 {
            font-size: 1.4rem;
            color: #333;
            margin-bottom: 0.8rem;
            font-weight: 600;
        }
        
        .screenshot-item p {
            color: #666;
            font-size: 1rem;
            line-height: 1.6;
            max-width: 400px;
            margin: 0 auto;
        }
        
        .screenshot-item.voting .screenshot-image-wrapper {
            border: 2px solid rgba(255, 0, 110, 0.1);
        }
        
        .screenshot-item.voting .screenshot-image-wrapper:hover {
            border-color: rgba(255, 0, 110, 0.3);
        }
        
        .screenshot-item.results .screenshot-image-wrapper {
            border: 2px solid rgba(131, 56, 236, 0.1);
        }
        
        .screenshot-item.results .screenshot-image-wrapper:hover {
            border-color: rgba(131, 56, 236, 0.3);
        }
        
        /* Open Source sekce */
        .open-source-section {
            background: linear-gradient(135deg, rgba(138,56,236,0.05), rgba(58,134,255,0.05));
            border-radius: 20px;
            padding: 3rem;
            margin: 3rem 0;
        }
        
        .open-source-content {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 3rem;
            align-items: center;
        }
        
        .open-source-text h2 {
            font-size: 1.8rem;
            color: #333;
            margin-bottom: 1rem;
        }
        
        .open-source-text p {
            font-size: 1.1rem;
            color: #555;
            line-height: 1.8;
            margin-bottom: 2rem;
        }
        
        .github-buttons {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        
        .github-button {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 1.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        .github-button.primary {
            background: #24292e;
            color: white;
        }
        
        .github-button.primary:hover {
            background: #1a1e22;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        
        .github-button.secondary {
            background: white;
            color: #333;
            border: 2px solid #e0e0e0;
        }
        
        .github-button.secondary:hover {
            border-color: #8338ec;
            color: #8338ec;
            transform: translateY(-2px);
        }
        
        .open-source-badge {
            text-align: center;
        }
        
        .open-source-badge p {
            margin-top: 0.5rem;
            color: #666;
            font-weight: 600;
        }
        
        /* Feedback CTA sekce */
        .feedback-cta-section {
            background: linear-gradient(135deg, #8338ec, #ff006e);
            border-radius: 25px;
            padding: 4rem 3rem;
            margin: 3rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .feedback-cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            animation: pulse 4s ease-in-out infinite;
        }
        
        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 0.5; }
            50% { transform: scale(1.1); opacity: 0.8; }
        }
        
        .feedback-cta-content {
            position: relative;
            z-index: 1;
        }
        
        .feedback-cta-section h2 {
            color: white;
            font-size: 2.2rem;
            margin-bottom: 1rem;
            text-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        
        .feedback-cta-section p {
            color: rgba(255,255,255,0.9);
            font-size: 1.2rem;
            margin-bottom: 2rem;
        }
        
        .feedback-cta-button {
            display: inline-flex;
            align-items: center;
            gap: 0.8rem;
            background: white;
            color: #8338ec;
            padding: 1.2rem 2.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        
        .feedback-cta-button:hover {
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 15px 40px rgba(0,0,0,0.3);
        }
        
        .button-icon {
            font-size: 1.5rem;
            animation: sparkle 2s ease-in-out infinite;
        }
        
        @keyframes sparkle {
            0%, 100% { transform: scale(1) rotate(0deg); }
            50% { transform: scale(1.2) rotate(180deg); }
        }
        
        .button-arrow {
            transition: transform 0.3s ease;
        }
        
        .feedback-cta-button:hover .button-arrow {
            transform: translateX(5px);
        }
        
        .feedback-note {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            margin-top: 1.5rem;
            margin-bottom: 0;
        }
        
        /* Demo sekce */
        .demo-section {
            text-align: center;
            margin: 3rem 0;
        }
        
        .demo-title {
            font-size: 2rem;
            color: #333;
            margin-bottom: 2rem;
            font-weight: 700;
        }
        
        .demo-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-bottom: 3rem;
        }
        
        .demo-feature {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.5rem;
            background: rgba(138, 56, 236, 0.03);
            border-radius: 15px;
            border: 1px solid rgba(138, 56, 236, 0.08);
            transition: all 0.3s ease;
        }
        
        .demo-feature:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 20px rgba(138, 56, 236, 0.1);
            background: rgba(138, 56, 236, 0.05);
        }
        
        .feature-icon {
            font-size: 2rem;
            flex-shrink: 0;
        }
        
        .demo-feature p {
            margin: 0;
            text-align: left;
            color: #555;
            font-size: 0.95rem;
            line-height: 1.5;
        }
        
        /* Disclaimer sekce */
        .disclaimer-section {
            text-align: center;
        }
        
        @media (max-width: 768px) {
            .banner-section {
                height: 250px;
            }
            
            .banner-title {
                font-size: 2.8rem;
            }
            
            .banner-subtitle {
                font-size: 1.2rem;
                padding: 0 1rem;
            }
            
            .main-content {
                margin-top: -60px;
                padding: 0 1rem 1rem;
            }
            
            .demo-container {
                padding: 2rem 1.5rem;
            }
            
            .demo-button {
                width: 100%;
            }
            
            .benefits-grid {
                grid-template-columns: 1fr;
            }
            
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            
            .step-arrow {
                display: none;
            }
            
            /* NOVÁ SEKCE - mobilní verze */
            .screenshots-container {
                grid-template-columns: 1fr;
                gap: 3rem;
            }
            
            .screenshot-item p {
                padding: 0 1rem;
            }
            
            .open-source-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
            
            .github-buttons {
                justify-content: center;
            }
            
            .feedback-cta-section {
                padding: 3rem 2rem;
            }
            
            .feedback-cta-section h2 {
                font-size: 1.8rem;
            }
            
            .feedback-cta-section p {
                font-size: 1.1rem;
            }
            
            .feedback-cta-button {
                padding: 1rem 2rem;
                font-size: 1rem;
            }
            
            .demo-features {
                grid-template-columns: 1fr;
            }
            
            .admin-features {
                grid-template-columns: 1fr;
            }
            
            .admin-service-card {
                padding: 2rem 1.5rem;
            }
            
            .admin-title {
                font-size: 1.8rem;
            }
        }