:root{
    /* darker, more subdued defaults */
    --bg-0: #04050a;
    --bg-1: #07101a;
    --card-bg: rgba(255,255,255,0.02);
    --muted: #7f8b95;
    --accent: #4aa0d9;
    --accent-2: #5b4fb8;
    --glass-border: rgba(255,255,255,0.035);
}

/* Dark theme with subtle gradient and glass container */
body {
    background: linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 60%);
    color: #e8f0ff;
    font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
}

.container {
    padding: 20px;
    max-width: 1000px;
    margin: 28px auto;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 10px 30px rgba(4,8,18,0.6);
    backdrop-filter: blur(6px) saturate(120%);
}

button {
    background: linear-gradient(180deg, var(--accent) 0%, var(--accent-2) 100%);
    color: #071127;
    border: none;
    border-radius: 8px;
    padding: 10px 12px;
    cursor: pointer;
    font-weight: 700;
    box-shadow: 0 6px 14px rgba(92,138,255,0.12);
    transition: transform 140ms ease, box-shadow 140ms ease, opacity 140ms ease;
}

button:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(92,138,255,0.16); }

input, textarea {
    background-color: rgba(255,255,255,0.02);
    color: #e8f0ff;
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 8px;
    padding: 10px;
    margin: 5px 0;
    width: 100%;
}

input::placeholder, textarea::placeholder { color: var(--muted); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Small utility classes */
.muted { color: var(--muted); }
.card-subtle { background: rgba(255,255,255,0.015); border-radius: 10px; padding: 8px; }