/* Global body styling */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding-top: 250px !important;
    min-height: 100vh;
    padding: 60px 15px;
    background: linear-gradient(135deg, #ffecd2, #fcb69f, #a1c4fd, #c2e9fb);
    background-size: 400% 400%;
    animation: gradientBG 18s ease infinite;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

/* Gradient animation */
@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    width: 100%;
    display: flex;
    justify-content: center;
}

.card {
    width: 100%;
    max-width: 420px;
    border: none;
    border-radius: 20px;
    background: #ffffff;
    box-shadow: 0 15px 40px rgba(0,0,0,.15);
    overflow: hidden;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(0,0,0,.25);
}

.card-header {
    background: linear-gradient(90deg, #ff6a00, #ee0979);
    color: #fff;
    text-align: center;
    padding: 22px;
    font-weight: bold;
    letter-spacing: 1px;
}

.card-body {
    padding: 28px;
}

.form-label {
    font-weight: 600;
    color: #333;
}

.form-control {
    height: 48px;
    border-radius: 12px;
    border: 1px solid #cfd8dc;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #ee0979;
    box-shadow: 0 0 10px rgba(238, 9, 121, 0.4);
}

/* Button */
.btn-primary {
    width: 100%;
    height: 50px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(90deg, #ff6a00, #ee0979);
    font-weight: bold;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(238, 9, 121, 0.5);
}

/* Footer */
.card-footer {
    background: #fafafa;
    text-align: center;
    padding: 15px;
    font-size: 0.85rem;
    color: #555;
}

/* Error div styling */
#errorMessages {
    margin-bottom: 15px;
    padding: 12px;
    border-radius: 10px;
    background: rgba(255, 0, 0, 0.08);
    color: #d32f2f;
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    box-shadow: inset 0 0 8px rgba(211, 47, 47, 0.3);
}

/* Neon glow effect when valid */
.btn-glow {
    background: linear-gradient(90deg, #00f260, #0575e6);
    box-shadow: 0 0 20px #00f260, 0 0 40px #0575e6;
    animation: glowPulse 1.5s infinite alternate;
}

@keyframes glowPulse {
    from {
        box-shadow: 0 0 10px #00f260, 0 0 20px #0575e6;
    }
    to {
        box-shadow: 0 0 25px #00f260, 0 0 50px #0575e6;
    }
}

/* Media query for screens below 1100px */
@media (max-width: 1100px) {
    body {
        padding: 40px 20px;
        font-size: 14px;
    }

    .card {
        width: 95% !important;
        margin: 0 auto !important;
        border-radius: 16px;
        box-shadow: none;
    }

    .card-body {
        padding: 20px;
    }

    .card-header {
        padding: 18px;
        font-size: 1.4rem;
    }

    .form-label {
        font-size: 0.9rem;
    }

    .form-control {
        font-size: 0.9rem;
        padding: 8px;
    }

    .btn-primary {
        font-size: 1rem;
        padding: 10px;
    }

    #errorMessages {
        font-size: 0.8rem;
        padding: 10px;
    }
}