:root {
    --bg: #0f172a;
    --card: #1e293b;
    --text: #f8fafc;
    --muted: #94a3b8;
    --accent: #38bdf8;
    --border: #334155;
    --danger: #fca5a5;
    --platform-shell-max: 1100px;
    --platform-shell-padding: 1.25rem;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Segoe UI", system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

.platform-layout {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.platform-layout > main {
    flex: 1;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container {
    width: 100%;
    max-width: var(--platform-shell-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--platform-shell-padding);
    padding-right: var(--platform-shell-padding);
    padding-top: var(--platform-shell-padding);
    padding-bottom: var(--platform-shell-padding);
}

.platform-layout > main.container {
    box-sizing: border-box;
}

.topbar .container {
    padding-top: var(--platform-shell-padding);
    padding-bottom: var(--platform-shell-padding);
}

.platform-footer .container {
    padding-top: var(--platform-shell-padding);
    padding-bottom: var(--platform-shell-padding);
}
.topbar {
    border-bottom: 1px solid var(--border);
    background: #111827;
}
.topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.platform-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text);
}

.platform-brand-logo {
    display: block;
    width: auto;
    max-height: 34px;
}

.platform-brand-title {
    font-weight: 700;
    font-size: 1rem;
}

@media (max-width: 520px) {
    .platform-brand-title {
        font-size: 0.9rem;
    }
}
.nav { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
}
.stack { display: grid; gap: 1rem; }
label { display: grid; gap: 0.35rem; font-weight: 600; font-size: 0.92rem; }
input, textarea, select, button { font: inherit; }
input, textarea, select {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.6rem 0.75rem;
    background: #0b1220;
    color: var(--text);
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    padding: 0.55rem 1rem;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    cursor: pointer;
    text-decoration: none;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #0f172a; font-weight: 600; }
.btn.danger { border-color: #7f1d1d; color: var(--danger); }
.btn-link { border: 0; background: transparent; color: var(--accent); padding: 0; cursor: pointer; }
.muted { color: var(--muted); }
.alert { padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
.alert.error { background: #450a0a; color: #fecaca; }
.alert.success { background: #14532d; color: #bbf7d0; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.6rem 0.5rem; border-bottom: 1px solid var(--border); }
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.auth-card { width: min(420px, 100%); }
.auth-login-card h1 { margin: 0 0 1.25rem; font-size: 1.75rem; }
.auth-divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0 0 1rem;
    color: var(--muted);
    font-size: 0.8125rem;
    font-weight: 600;
}
.auth-divider::before,
.auth-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border);
}
.auth-social-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
}
.btn-social {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    width: 100%;
    padding: 0.65rem 0.5rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #f8fafc;
    color: #0f172a;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    cursor: pointer;
}
.btn-social:hover:not(:disabled) {
    background: #f1f5f9;
    border-color: #cbd5e1;
    text-decoration: none;
}
.btn-social:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-social-icon { display: flex; line-height: 0; }
.btn-social-logo {
    display: block;
    width: 20px;
    height: 20px;
    object-fit: contain;
    flex-shrink: 0;
}
.platform-auth-wrap { min-height: auto; padding: 2rem 1rem 3rem; }
.logged-out-card { text-align: center; }
.logged-out-message { margin-bottom: 0.5rem; }
.logged-out-hint { margin: 0; font-size: 0.875rem; }
.badge { font-size: 0.8rem; padding: 0.15rem 0.5rem; border-radius: 999px; background: #334155; }
.badge.ok { background: #166534; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
@media (max-width: 720px) {
    .grid-2 { grid-template-columns: 1fr; }
}

.oauth-uri-hints {
    margin: 0.35rem 0 0;
    padding-left: 1.1rem;
    color: var(--muted);
}

.platform-footer {
    border-top: 1px solid var(--border);
    background: #111827;
    padding: 1.25rem 0;
    margin-top: auto;
}

.platform-footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.85rem;
    text-align: center;
}

.platform-footer-jz-logo {
    display: block;
    width: auto;
    max-height: 36px;
}

.platform-footer .site-owner-mark {
    display: inline-flex;
}

.platform-footer .site-owner-logo {
    display: block;
    width: auto;
    max-width: min(200px, 88vw);
    max-height: 44px;
    height: auto;
}

.platform-footer-copy {
    margin: 0;
    font-size: 0.8rem;
    color: var(--muted);
}

.platform-footer-copy a {
    color: var(--muted);
    text-decoration: none;
}

.platform-footer-copy a:hover {
    color: var(--accent);
    text-decoration: underline;
}

.users-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0 0 1rem;
}

.users-filter a {
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    color: var(--muted);
    text-decoration: none;
}

.users-filter a.active {
    background: var(--accent);
    color: #0f172a;
    border-color: var(--accent);
}

.user-show-back {
    margin: 0 0 0.75rem;
}

.user-show-actions {
    margin-top: 1rem;
}

.user-detail-list {
    margin: 0;
    display: grid;
    gap: 0.65rem;
}

.user-detail-list > div {
    display: grid;
    grid-template-columns: minmax(8rem, 11rem) 1fr;
    gap: 0.75rem 1rem;
    align-items: baseline;
}

.user-detail-list dt {
    margin: 0;
    color: var(--muted);
    font-weight: 600;
    font-size: 0.875rem;
}

.user-detail-list dd {
    margin: 0;
}

.user-show-op-form {
    max-width: 28rem;
}

.btn-link.danger {
    color: var(--danger);
}

.form-hint {
    margin: 0;
    font-size: 0.875rem;
}

@media (max-width: 520px) {
    .user-detail-list > div {
        grid-template-columns: 1fr;
        gap: 0.15rem;
    }
}