:root {
    --bg: #05060b;
    --panel: #0d1428;
    --panel-edge: #1c2545;
    --ink: #dfe6ff;
    --gold: #ffd93b;
    --good: #4dff9b;
    --bad: #ff6b6b;
    --blue: #4da3ff;
}

* { box-sizing: border-box; }

body {
    background: var(--bg);
    color: var(--ink);
    font-family: ui-sans-serif, system-ui, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.auth-box {
    background: var(--panel);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--panel-edge);
    width: 100%;
    max-width: 350px;
    box-shadow: 0 24px 60px -28px #000;
}

.auth-box h2 {
    text-align: center;
    color: var(--bad);
    margin-top: 0;
    letter-spacing: .1em;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 12px;
    color: #7c88b5;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    background: #060a15;
    border: 1px solid #26325a;
    color: #fff;
    outline: none;
}

.auth-box button {
    width: 100%;
    padding: 12px;
    background: var(--blue);
    color: #000;
    border: none;
    border-radius: 6px;
    font-weight: 800;
    cursor: pointer;
    transition: .2s;
}

.auth-box button:hover {
    background: #3a8fe6;
}

.alert {
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 15px;
    font-size: 12px;
    text-align: center;
}

.alert.error {
    background: rgba(255,107,107,0.1);
    color: var(--bad);
    border: 1px solid var(--bad);
}