:root {
    --bg: #ffffff;
    --surface: #f8f9fa;
    --border: #dee2e6;
    --text: #212529;
    --muted: #6c757d;
    --primary: #0d6efd;
    --primary-hover: #0b5ed7;
    --danger: #dc3545;
    --danger-hover: #bb2d3b;
    --success-bg: #d1e7dd;
    --success-border: #badbcc;
    --success-text: #0f5132;
    --error-bg: #f8d7da;
    --error-border: #f5c2c7;
    --error-text: #842029;
    --token-bg: #fff8e1;
    --token-border: #ffc107;
    --token-text: #5a3e00;
    --radius: 6px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--text);
    background: var(--bg);
}

/* ── Navigation ── */

nav {
    position: sticky;
    top: 0;
    background: #6f277d;
    height: 56px;
    z-index: 100;
}

.nav-inner {
    max-width: 920px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
}

.nav-links a:hover {
    color: #fff;
}

.nav-email {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ── Layout ── */

main {
    padding: 2rem 0 4rem;
}

.container {
    max-width: 920px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.page-center {
    max-width: 440px;
    margin: 5rem auto 0;
    text-align: center;
}

.page-center h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}
.page-center p {
    color: var(--muted);
    margin-bottom: 2rem;
}

/* ── Alerts ── */

.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    border: 1px solid transparent;
    margin-bottom: 1.5rem;
}

.alert-success {
    background: var(--success-bg);
    border-color: var(--success-border);
    color: var(--success-text);
}

.alert-error {
    background: var(--error-bg);
    border-color: var(--error-border);
    color: var(--error-text);
}

/* ── Token reveal ── */

.token-reveal {
    background: var(--token-bg);
    border: 1px solid var(--token-border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--token-text);
}

.token-reveal strong {
    display: block;
    margin-bottom: 0.25rem;
}
.token-reveal .hint {
    font-size: 0.875rem;
    margin: 0.25rem 0 0.75rem;
}

.token-value {
    display: block;
    background: rgba(0, 0, 0, 0.06);
    border-radius: var(--radius);
    padding: 0.6rem 0.8rem;
    font-family: monospace;
    font-size: 0.95rem;
    word-break: break-all;
    user-select: all;
    cursor: text;
}

/* ── Cards ── */

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card h2 {
    margin: 0 0 1rem;
    font-size: 1.1rem;
}

.card-danger {
    border-color: var(--danger);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* ── Definition list ── */

dl {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 0.25rem 1.25rem;
    margin: 0;
}

dt {
    font-weight: 600;
    color: var(--muted);
    font-size: 0.875rem;
    padding: 0.15rem 0;
}

dd {
    margin: 0;
    padding: 0.15rem 0;
}

/* ── Buttons ── */

.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-family: inherit;
    text-decoration: none;
    line-height: 1.5;
    transition:
        background 0.15s,
        color 0.15s;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-hover);
    color: #fff;
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-secondary:hover {
    background: var(--primary);
    color: #fff;
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover {
    background: var(--danger-hover);
}

.btn-sm {
    padding: 0.25rem 0.6rem;
    font-size: 0.8rem;
}

.btn-link {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    font-size: 0.9rem;
    font-family: inherit;
    padding: 0;
}
.btn-link:hover {
    color: #fff;
}

.gap {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* ── Forms ── */

.form-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: left;
}

.form-card .field {
    margin-bottom: 1rem;
}

.form-inline {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    flex: 1;
    min-width: 200px;
}

label {
    font-size: 0.875rem;
    font-weight: 600;
}

input[type="email"],
input[type="text"] {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    background: #fff;
}

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

/* ── Table ── */

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

th {
    text-align: left;
    padding: 0.5rem 0.75rem;
    border-bottom: 2px solid var(--border);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    white-space: nowrap;
}

td {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

tr:last-child td {
    border-bottom: none;
}

td code {
    font-size: 0.85rem;
}

/* ── Misc ── */

h1 {
    margin: 0 0 1rem;
}
p {
    margin: 0 0 1rem;
}

ol {
    padding-left: 1.5rem;
    margin: 0;
}
ol li {
    margin-bottom: 0.4rem;
}

.text-muted {
    color: var(--muted);
    font-size: 0.875rem;
}