body {
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
    /* Starry space background */
    background: radial-gradient(ellipse at bottom, #1b2735 0%, #090a0f 100%);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Enhanced, vibrant star field effect */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        radial-gradient(#fff 1.5px, transparent 1.5px),
        radial-gradient(#aee7ff 1.2px, transparent 1.2px),
        radial-gradient(#ffe066 1.2px, transparent 1.2px),
        radial-gradient(#fff 1px, transparent 1px),
        radial-gradient(#7ecfff 1.2px, transparent 1.2px),
        radial-gradient(#ffd700 1.2px, transparent 1.2px),
        radial-gradient(#fff 0.8px, transparent 0.8px);
    background-size: 900px 600px, 700px 500px, 600px 400px, 1200px 800px, 800px 600px, 400px 300px, 1000px 700px;
    background-position: 0 0, 200px 100px, 400px 200px, 100px 300px, 300px 400px, 600px 100px, 500px 350px;
    opacity: 0.55;
}

.container, .site-header {
    position: relative;
    z-index: 1;
}

.container {
    max-width: 400px;
    margin: 60px auto;
    background: rgba(255,255,255,0.97);
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    padding: 32px 24px;
}

h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 24px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

input[type="email"],
input[type="password"] {
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 1rem;
}

button {
    padding: 12px;
    background: #0077ff;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}

button:hover {
    background: #005fcc;
}

a {
    color: #0077ff;
    text-decoration: none;
    font-size: 0.95rem;
}

a:hover {
    text-decoration: underline;
}

.site-header {
    width: 100%;
    background: linear-gradient(90deg, #0a1a3c 0%, #1e3c72 100%);
    color: #fff;
    padding: 28px 0 18px 0;
    text-align: center;
    font-size: 2.2rem;
    font-weight: bold;
    letter-spacing: 2px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.07);
    margin-bottom: 36px;
    border-radius: 0 0 18px 18px;
    font-family: 'Segoe UI', Arial, sans-serif;
    text-shadow: 0 2px 8px rgba(0,0,0,0.10);
}

@media (max-width: 600px) {
    .site-header {
        font-size: 1.2rem;
        padding: 18px 0 12px 0;
        margin-bottom: 18px;
    }
    .container {
        margin: 18px auto;
        padding: 18px 8px;
    }
}