body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
        }

.registration-form {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInScale 0.8s ease-out 0.4s both;
        }

    @keyframes fadeInScale {
            from { transform: scale(0.9); opacity: 0; }
            to { transform: scale(1); opacity: 1; }
        }

   .registration-form {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
            
        }

        .registration-form {
            position: relative;
        }

        .registration-form label {
            display: block;
            margin-bottom: 8px;

            font-weight: 600;
            color: #3490dc;
            /* font-size: 0.95rem; */
        }

        .registration-form input {
            margin-top: 5px;
            width: 100%;
            padding: 16px 20px;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 1rem;
            transition: all 0.3s ease;
            background: white;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
        }

        .registration-form input:focus {
            outline: none;
            border-color: #3490dc;
            box-shadow: 0 0 0 3px rgba(52, 144, 220, 0.1);
            transform: translateY(-2px);
        }

        .registration-form input:hover {
            border-color: #6574cd;
        }

        .registration-form select{
            margin-top: 5px;
            width: 100%;
            padding: 16px 20px;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 1rem;
            transition: all 0.3s ease;
            background: white;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
        }

        select.registration-form input {
            cursor: pointer;
        }


.background-shapes {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
        }
 .shape {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            animation: float 6s ease-in-out infinite;
        }

        .shape:nth-child(1) {
            width: 80px;
            height: 80px;
            top: 10%;
            left: 10%;
            animation-delay: 0s;
        }

        .shape:nth-child(2) {
            width: 120px;
            height: 120px;
            top: 20%;
            right: 15%;
            animation-delay: 2s;
        }

        .shape:nth-child(3) {
            border-radius: 5%;
            width: 60px;
            height: 60px;
            bottom: 15%;
            left: 10%;
            animation-delay: 4s;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            33% { transform: translateY(-20px) rotate(120deg); }
            66% { transform: translateY(10px) rotate(240deg); }
        }

.header {
            text-align: center;
            margin-bottom: 40px;
            color: white;
        }

        .header h1 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 10px;
            text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
            animation: slideDown 0.8s ease-out;
        }

        .header p {
            font-size: 1.2rem;
            opacity: 0.9;
            animation: slideUp 0.8s ease-out 0.2s both;
        }

.calculate-btn {
            width: 100%;
            padding: 18px;
            background: linear-gradient(135deg, #3490dc 0%, #6574cd 100%);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 8px 16px rgba(52, 144, 220, 0.3);
            position: relative;
            overflow: hidden;
        }

        .calculate-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .calculate-btn:hover::before {
            left: 100%;
        }

        .calculate-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(52, 144, 220, 0.4);
        }

        .calculate-btn:active {
            transform: translateY(0);
        }


.container {
            max-width: 66rem;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }


@media (max-width: 430px){
    .registration-form {
        display: flex;
        flex-direction: column;
        padding: 20px;

    }
}

#vehicle1:hover{
    cursor: pointer;
    
}

#pollution-sticker{
    accent-color: #6276d1;
}