:root {
    --bg: #0c1220;
    --card: #141c2e;
    --text: #eef3fb;
    --muted: #9aa8bf;
    --line: #2a3750;
    --accent: #3d8df5;
    --accent-hover: #5aa0ff;
    --danger: #ff6b7a;
    --focus: #8ec0ff;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
}

.card {
    width: 100%;
    max-width: 420px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 32px;
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--accent);
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1 {
    margin: 0 0 8px;
    font-size: 28px;
    font-weight: 640;
}

.lede,
.setup-label,
.enroll p {
    color: var(--muted);
    line-height: 1.5;
}

label {
    display: block;
    margin: 16px 0 6px;
    font-size: 14px;
}

input {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #0c1220;
    color: var(--text);
    padding: 12px 14px;
    font-size: 16px;
}

input:focus {
    outline: 2px solid var(--focus);
    outline-offset: 1px;
}

button {
    width: 100%;
    margin-top: 20px;
    border: 0;
    border-radius: 10px;
    background: var(--accent);
    color: #fff;
    padding: 12px 16px;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background: var(--accent-hover);
}

button:disabled {
    opacity: 0.6;
    cursor: wait;
}

.secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--line);
    margin-top: 10px;
}

.secondary:hover {
    background: #1b2740;
}

.error {
    margin: 0 0 16px;
    color: var(--danger);
    background: #2a151c;
    border: 1px solid #5a2430;
    border-radius: 10px;
    padding: 10px 12px;
}

.enroll {
    margin-bottom: 8px;
}

#qr-image {
    display: block;
    margin: 16px auto;
    background: #fff;
    border-radius: 12px;
    padding: 8px;
}

.setup-label {
    margin: 0 0 6px;
    font-size: 13px;
}

#setup-key {
    display: block;
    overflow-wrap: anywhere;
    background: #0c1220;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
    font-size: 13px;
}

#totp {
    letter-spacing: 0.35em;
    text-align: center;
    font-size: 22px;
}