:root {
        --bg: #0f172a;
        --card: #1e293b;
        --accent: #67e8f9;
        --text: #e2e8f0;
        --text-light: #94a3b8;
    }

    body {
        background: linear-gradient(135deg, #0f172a 0%, #0f1d3a 100%);
        color: var(--text);
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: 'Inter', sans-serif;
        padding: 1.5rem;
    }

    .app-container {
        background: rgba(30, 41, 59, 0.65);
        backdrop-filter: blur(12px);
        border: 1px solid rgba(103, 232, 249, 0.12);
        border-radius: 16px;
        padding: 2.5rem 2rem;
        width: 100%;
        max-width: 480px;
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
        transition: transform 0.3s ease;
    }

    .app-container:hover {
        transform: translateY(-4px);
    }

    h2.title {
        font-weight: 700;
        font-size: 1.9rem;
        margin-bottom: 0.5rem;
        color: white;
    }

    .subtitle {
        color: var(--text-light);
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .form-label {
        color: var(--text);
        font-weight: 500;
        margin-bottom: 0.5rem;
    }

    .form-control {
        background: rgba(15, 23, 42, 0.7);
        border: 1px solid rgba(103, 232, 249, 0.2);
        color: white;
        border-radius: 10px;
        padding: 0.75rem 1.1rem;
        transition: all 0.25s ease;
    }

    .form-control:focus {
        background: rgba(15, 23, 42, 0.9);
        border-color: var(--accent);
        box-shadow: 0 0 0 0.25rem rgba(103, 232, 249, 0.15);
        color: white;
    }

    .form-control::placeholder {
        color: var(--text-light);
    }

    .btn-generate {
        background: linear-gradient(90deg, #22d3ee, #67e8f9);
        border: none;
        font-weight: 600;
        padding: 0.75rem;
        border-radius: 10px;
        transition: all 0.3s ease;
        margin-top: 1.2rem;
    }

    .btn-generate:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(103, 232, 249, 0.35);
        background: linear-gradient(90deg, #67e8f9, #22d3ee);
    }

    #quote {
        margin-top: 2.5rem;
        font-size: 1.25rem;
        line-height: 1.6;
        color: var(--accent);
        font-weight: 500;
        min-height: 80px;
        opacity: 0;
        transform: translateY(15px);
        transition: all 0.6s ease;
    }

    #quote.visible {
        opacity: 1;
        transform: translateY(0);
    }

    .quote-icon {
        font-size: 1.8rem;
        margin-right: 0.5rem;
        vertical-align: middle;
    }

    @media (max-width: 576px) {
        .app-container {
            padding: 2rem 1.5rem;
        }

        h2.title {
            font-size: 1.7rem;
        }

        #quote {
            font-size: 1.15rem;
        }
    }