* {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: "Segoe UI", Arial, sans-serif;
        }

        body {
            min-height: 100vh;
            background: linear-gradient(135deg, #eef6ff, #ffffff);
            color: #1f2937;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .container {
            max-width: 900px;
            width: 90%;
            background: white;
            border-radius: 20px;
            padding: 60px 50px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.08);
            text-align: center;
        }

        .logo {
            font-size: 42px;
            font-weight: 800;
            color: #2563eb;
            margin-bottom: 20px;
        }

        h1 {
            font-size: 38px;
            line-height: 1.2;
            margin-bottom: 20px;
            color: #111827;
        }

        h1 strong {
            color: #2563eb;
        }

        p {
            font-size: 18px;
            line-height: 1.6;
            color: #6b7280;
            max-width: 750px;
            margin: auto;
        }

        .features {
            display: flex;
            gap: 20px;
            margin-top: 40px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .feature {
            background: #f8fafc;
            border-radius: 15px;
            padding: 25px;
            width: 250px;
            border: 1px solid #e5e7eb;
        }

        .feature strong {
            display: block;
            font-size: 18px;
            margin-bottom: 10px;
            color: #2563eb;
        }

.email-input {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
}


.email-input input {
    width: 100%;
    max-width: 450px;

    padding: 15px 25px;
    border-radius: 50px;

    border: 2px solid #e5e7eb;
    background: white;

    font-size: 17px;
    color: #111827;

    outline: none;
    transition: .3s;
}

.email-input input::placeholder {
    color: #9ca3af;
}

.email-input input:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 4px rgba(37,99,235,.15);
}



     .btn {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;

    margin-top: 0px;
    padding: 15px 35px;
    border-radius: 50px;
    background: #2563eb;
    color: white;
    text-decoration: none;
    font-weight: bold;
    font-size: 17px;
    cursor: pointer;
    transition: .3s;
}

.btn:hover {
    background: #1d4ed8;
}


.loader {
    display: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 3px solid rgba(255,255,255,.3);
    border-top-color: white;
    animation: spin .8s linear infinite;
}


.btn.loading .loader {
    display: block;
}

.btn.loading .text {
    opacity: .5;
}


.btn.loading::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255,255,255,.45),
        transparent
    );
    animation: scan 1.2s infinite;
}


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


@keyframes scan {
    from {
        left: -100%;
    }
    to {
        left: 150%;
    }
}

        .btn:hover {
            background: #0e3294;
            transform: translateY(-2px);
        }

        footer {
            margin-top: 40px;
            font-size: 14px;
            color: #9ca3af;
        }

        @media(max-width:600px) {
            .container {
                padding: 40px 20px;
            }

            h1 {
                font-size: 30px;
            }
        }