/* Mobile first. Everything has to work on an iPhone without zooming:
   16px minimum text size, 44px minimum touch targets, single column. */

:root {
    --bg: #f5f5f4;
    --surface: #ffffff;
    --ink: #1c1c1a;
    --ink-soft: #5b5b57;
    --line: #d9d9d4;
    --accent: #1f5f4f;
    --accent-ink: #ffffff;
    --error-bg: #fdeceb;
    --error-ink: #8a2017;
    --success-bg: #e9f4ec;
    --success-ink: #1d5c33;
    --info-bg: #eef2f8;
    --info-ink: #1f3d66;
    --radius: 10px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--ink);
    font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header ------------------------------------------------------------- */

.site-header {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
}

.brand {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--ink);
    text-decoration: none;
}

.site-header nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.site-header nav a,
.link-button {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 0.75rem;
    color: var(--accent);
    text-decoration: none;
    font-size: 1rem;
}

.link-button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.link-button:hover,
.site-header nav a:hover { text-decoration: underline; }

/* Layout ------------------------------------------------------------- */

main {
    flex: 1;
    width: 100%;
    max-width: 44rem;
    margin: 0 auto;
    padding: 1rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.25rem;
}

.card.narrow { max-width: 26rem; margin: 0 auto; }

h1 { font-size: 1.4rem; margin: 0 0 1rem; }
h2 { font-size: 1.1rem; margin: 1.75rem 0 0.75rem; }

.hint { color: var(--ink-soft); font-size: 0.9rem; }

/* Forms -------------------------------------------------------------- */

label {
    display: block;
    margin: 1rem 0 0.25rem;
    font-weight: 500;
}

input[type="email"],
input[type="password"],
input[type="text"] {
    width: 100%;
    min-height: 44px;
    padding: 0.5rem 0.65rem;
    /* 16px keeps iOS Safari from zooming in on focus. */
    font-size: 16px;
    font-family: inherit;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
}

input:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

button {
    min-height: 44px;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    cursor: pointer;
}

button:hover { background: #efefec; }

button.primary {
    margin-top: 1.25rem;
    width: 100%;
    color: var(--accent-ink);
    background: var(--accent);
    border-color: var(--accent);
    font-weight: 500;
}

button.primary:hover { background: #18493c; }

form.inline { display: inline; margin: 0; }

.row-form button.primary { width: auto; margin-top: 1rem; }

/* Alerts ------------------------------------------------------------- */

.alert {
    margin: 1rem 0;
    padding: 0.75rem 0.9rem;
    border-radius: 8px;
    font-size: 0.95rem;
}

.alert-error { background: var(--error-bg); color: var(--error-ink); }
.alert-success { background: var(--success-bg); color: var(--success-ink); }
.alert-info { background: var(--info-bg); color: var(--info-ink); }

.credentials code {
    display: inline-block;
    padding: 0.15rem 0.4rem;
    background: rgba(0, 0, 0, 0.06);
    border-radius: 4px;
    font-size: 1rem;
    word-break: break-all;
}

/* User list ---------------------------------------------------------- */

.user-list { list-style: none; margin: 0; padding: 0; }

.user-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0.9rem 0;
    border-top: 1px solid var(--line);
}

.user-row.blocked { opacity: 0.65; }

.user-info { display: flex; flex-direction: column; gap: 0.2rem; }
.user-email { font-weight: 500; word-break: break-all; }

.badges { display: flex; flex-wrap: wrap; gap: 0.3rem; }

.badge {
    padding: 0.1rem 0.45rem;
    font-size: 0.78rem;
    background: #e8e8e4;
    border-radius: 999px;
}

.badge-warn { background: var(--error-bg); color: var(--error-ink); }

.user-actions { display: flex; flex-wrap: wrap; gap: 0.4rem; }

/* Footer ------------------------------------------------------------- */

.site-footer {
    padding: 1rem;
    text-align: center;
    color: var(--ink-soft);
    font-size: 0.85rem;
}

.site-footer p { margin: 0; }