/* ===== Base Reset ===== */
    html, body {
        margin: 0;
        padding: 0;
        width: 100%;
        height: 100%;
        overflow-x: hidden;
        font-family: 'Inter', sans-serif;
        background-color: #3c3c3c;
    }

    /* ===== Fullscreen Fit Wrapper ===== */
    body {
        display: flex;
        flex-direction: column;
        justify-content: center;      /* vertical centering */
        align-items: center;           /* horizontal centering */
    }

    /* ===== Auth Box (Responsive) ===== */
    .auth-box {
        background: #fff;
        width: 90%;
        max-width: 360px;
        padding: 40px;
        text-align: center;
        border-radius: 15px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.25);
        box-sizing: border-box;
    }

    .logo {
        width: 280px;
        max-width: 100%;
        margin-bottom: 12px;
    }

    h1 {
        font-size: 22px;
        font-weight: 600;
        color: #2e47b5;
        margin: 10px 0 4px;
    }

    .note {
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 20px;
    }

    /* ===== Color Variables ===== */
    :root {
        --green-main: #27ae60;
        --green-dark: #117a65;
        --blue-main: #00bcd4;
        --blue-dark: #008c9e;
        --orange-main: #f39c12;
        --orange-dark: #d68910;
    }

    /* ===== Buttons ===== */
    .btn-cta {
        width: 80%;
        padding: 22px 20px;
        border-radius: 40px;
        color: #fff;
        font-weight: 600;
        font-size: 1.5rem;
        display: block;
        margin: 10px auto;
        border: none;
        cursor: pointer;
        text-decoration: none;
        box-shadow: 0 4px 8px rgba(0,0,0,0.15);
        transition: 0.3s ease-in-out;
    }

    .btn-cta:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 16px rgba(0,0,0,0.20);
    }

    .btn-orange { background: var(--orange-main); }
    .btn-orange:hover { background: var(--orange-dark); }

    .btn-blue { background: var(--blue-main); }
    .btn-blue:hover { background: var(--blue-dark); }

    .btn-green { background: var(--green-main); }
    .btn-green:hover { background: var(--green-dark); }

    .btn-dark { background: #34495e; }
    .btn-dark:hover { background: #2c3e50; }

    /* ===== Footer ===== */
    .footer {
        margin-top: 15px;
        color: #e0e0e0;
        font-size: 13px;
        text-align: center;
        padding-bottom: 20px;
    }

    /* ===== Small Devices Optimization ===== */
    @media (max-height: 620px) {
        body {
            justify-content: flex-start;
            padding-top: 20px;
        }
        .auth-box {
            margin-top: 10px;
            transform: scale(0.94);
        }
    }

    @media (max-width: 360px) {
        .auth-box {
            padding: 20px;
            transform: scale(0.95);
        }
    }