* {
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    margin: 0;
    height: 100vh;
    background: linear-gradient(135deg, #141e30, #243b55);
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-box {
    background: #ffffff;
    width: 100%;
    max-width: 400px;
    padding: 40px 35px;
    border-radius: 14px;
    box-shadow: 0 25px 60px rgba(0,0,0,.35);
    animation: fadeIn .6s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-box h1 {
    text-align: center;
    margin-bottom: 10px;
    color: #1f2937;
    font-size: 26px;
}

.login-box p {
    text-align: center;
    color: #6b7280;
    font-size: 14px;
    margin-bottom: 30px;
}

.input-group {
    position: relative;
    margin-bottom: 22px;
}

.input-group span {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    color: #9ca3af;
}

.input-group input {
    width: 100%;
    padding: 14px 14px 14px 44px;
    border-radius: 10px;
    border: 1px solid #d1d5db;
    font-size: 15px;
    transition: all .2s ease;
}

.input-group input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}

button {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #2563eb, #1e40af);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform .15s ease, box-shadow .15s ease;
}

button:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 25px rgba(37,99,235,.35);
}

button:active {
    transform: translateY(0);
    box-shadow: none;
}

.footer {
    margin-top: 25px;
    text-align: center;
    font-size: 12px;
    color: #9ca3af;
}