:root {
        --primary: #127D61;
        --accent: #F79420;
    }

    body {
        background: url("{% static 'images/kids.jpg' %}") no-repeat center center/cover;
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 1rem;
        backdrop-filter: brightness(0.6);
    }

    .donation-card {
        background: rgba(255, 255, 255, 0.92);
        border-radius: 16px;
        padding: 2rem 1.5rem;
        max-width: 420px;
        width: 100%;
        box-shadow: 0 8px 18px rgba(0, 0, 0, 0.35);
        backdrop-filter: blur(8px);
        animation: fadeIn 0.6s ease-out;
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: scale(0.95);
        }

        to {
            opacity: 1;
            transform: scale(1);
        }
    }

    .btn-primary {
        background-color: var(--accent);
        border: none;
    }

    .btn-primary:hover {
        background-color: #e6851a;
    }

    .preset-btn {
        font-size: 0.85rem;
        border-radius: 10px;
    }

    .logo-text {
        font-size: 1.45rem;
        font-weight: 800;
        color: var(--primary);
        letter-spacing: 0.5px;
    }

    /* Center Alert */
    #top-alert-container {
        position: fixed;
        top: 50px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 9999;
        width: 90%;
        max-width: 450px;
        animation: slideDown 0.6s ease-out;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translate(-50%, -30px);
        }

        to {
            opacity: 1;
            transform: translate(-50%, 0);
        }
    }

    #alert-spinner {
        animation: spin 1s linear infinite, glow 1.3s ease-in-out infinite;
    }

    @keyframes spin {
        to {
            transform: rotate(360deg);
        }
    }

    @keyframes glow {
        0% {
            opacity: 0.6;
            transform: scale(1);
        }

        50% {
            opacity: 1;
            transform: scale(1.2);
        }

        100% {
            opacity: 0.6;
            transform: scale(1);
        }
    }

    @media (max-width: 480px) {
        .donation-card {
            padding: 1.4rem 1rem;
            border-radius: 14px;
        }

        .logo-text {
            font-size: 1.25rem;
        }
    }