/* ================= MAIN UI ================= */
body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #1e88e5, #00bcd4);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

/* CARD */
.login-box {
    background: #ffffff;
    padding: 30px;
    border-radius: 12px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    text-align: center;
    position: relative;
    transition: transform 0.3s ease;
}

/* DEVICE ICON */
.device-icon {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 26px;
    transition: transform 0.3s ease;
}

/* DEVICE ICON SIZE AND PLACEMENT BASED ON SCREEN SIZE */
@media (max-width: 768px) {
    .device-icon {
        font-size: 22px;
        top: 10px;
        right: 10px;
    }
}

@media (max-width: 480px) {
    .device-icon {
        font-size: 20px;
        top: 5px;
        right: 5px;
    }
}

/* BRAND */
.brand {
    font-size: 24px;
    font-weight: bold;
    color: #1e88e5;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.subtitle {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
    font-style: italic;
}

/* INPUT FIELDS */
.input-box {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 10px;
    border: 1px solid #ddd;
    font-size: 16px;
    transition: 0.2s ease;
    box-sizing: border-box;
}

/* INPUT FOCUS STATE */
.input-box:focus {
    border-color: #1e88e5;
    outline: none;
    box-shadow: 0 0 8px rgba(30, 136, 229, 0.5);
}

/* BUTTON */
.btn {
    width: 100%;
    padding: 12px;
    background: #1e88e5;
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
    transition: background 0.3s ease, transform 0.2s ease;
    box-sizing: border-box;
}

/* BUTTON HOVER EFFECT */
.btn:hover {
    background: #1565c0;
    transform: scale(1.05);
}

/* LINKS */
.links {
    margin-top: 20px;
    font-size: 14px;
}

.links a {
    color: #1e88e5;
    text-decoration: none;
    margin: 0 6px;
    font-weight: bold;
}

.links a:hover {
    text-decoration: underline;
}

/* ERROR MESSAGE */
.error {
    background: #ffe5e5;
    color: #b00020;
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 10px;
    font-size: 15px;
    font-weight: bold;
}

/* MOBILE STYLES */
@media (max-width: 480px) {
    .login-box {
        width: 90%;
        padding: 20px;
    }

    .device-icon {
        font-size: 20px;
    }

    .brand {
        font-size: 20px;
    }

    .input-box {
        font-size: 14px;
    }

    .btn {
        font-size: 14px;
    }
}

/* ANIMATED TRANSITION EFFECT FOR SUCCESS MESSAGE */
.success-message {
    background: #e8f5e9;
    color: #388e3c;
    border-radius: 8px;
    padding: 15px;
    font-size: 16px;
    text-align: left;
    box-sizing: border-box;
    margin-bottom: 20px;
    font-weight: bold;
    animation: slide-in 0.5s ease-out;
}

/* SUCCESS MESSAGE ANIMATION */
@keyframes slide-in {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}