:root {
  color-scheme: light dark;
  --bg: #f5f7f9;
  --surface: #ffffff;
  --surface-2: #eef1f4;
  --border: #dce2e8;
  --text: #15202b;
  --muted: #5b6978;
  --accent: #0e7c86;
  --accent-hover: #0b6870;
  --accent-soft: #e0f2f3;
  --on-accent: #ffffff;
  --ok: #217a4b;
  --ok-soft: #e3f4ea;
  --warn: #9a6a0b;
  --warn-soft: #fbf1dc;
  --danger: #b93028;
  --danger-soft: #fbe7e5;
  --radius: 10px;
  --shadow: 0 1px 2px rgb(16 24 40 / 6%), 0 1px 3px rgb(16 24 40 / 8%);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --surface: #151b23;
    --surface-2: #1c2430;
    --border: #2a3441;
    --text: #e4eaf0;
    --muted: #8d9aaa;
    --accent: #3cb4be;
    --accent-hover: #5cc6ce;
    --accent-soft: #11363a;
    --on-accent: #06181a;
    --ok: #52c285;
    --ok-soft: #12301f;
    --warn: #e0b04f;
    --warn-soft: #33290f;
    --danger: #f07167;
    --danger-soft: #3a1714;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body { min-height: 100vh; }
a { color: var(--accent); }
code, .mono { font-family: var(--mono); font-size: 0.86em; }
h1 { font-size: 1.55rem; margin: 0 0 0.2rem; letter-spacing: -0.01em; }
h2 { font-size: 1.1rem; margin: 1.2rem 0 0.5rem; }
h2:first-child { margin-top: 0; }
h3 { font-size: 1.05rem; margin: 0; }
h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 1.1rem 0 0.4rem; }
h4:first-child { margin-top: 0; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
[hidden] { display: none !important; }

/* ---- layout ---- */
.topbar {
  display: flex; align-items: center; gap: 1.5rem;
  padding: 0.6rem 1.25rem; background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 0.5rem; font-weight: 650; color: var(--text); text-decoration: none; }
.brand-tag { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent); background: var(--accent-soft); padding: 0.1rem 0.45rem; border-radius: 99px; }
.nav { display: flex; gap: 0.25rem; flex: 1; overflow-x: auto; }
.nav a { color: var(--muted); text-decoration: none; padding: 0.4rem 0.7rem; border-radius: 8px; font-weight: 500; white-space: nowrap; }
.nav a:hover { color: var(--text); background: var(--surface-2); }
.nav a.active { color: var(--accent); background: var(--accent-soft); }
.user { display: flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; }
main { max-width: 1240px; margin: 0 auto; padding: 1.5rem 1.25rem 4rem; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: 1.25rem; }
.page-head p { margin: 0; max-width: 70ch; }

@media (max-width: 760px) {
  .topbar { flex-wrap: wrap; gap: 0.5rem; padding: 0.6rem 1rem; }
  .nav { order: 3; flex-basis: 100%; }
  .user #user-email { display: none; }
  main { padding: 1rem 1rem 3rem; }
  .page-head { flex-direction: column; }
}

/* ---- components ---- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.1rem 1.25rem; margin-bottom: 1rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  font: inherit; font-weight: 550; font-size: 0.9rem; line-height: 1.2;
  padding: 0.55rem 1rem; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, .dropzone:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-ghost { background: transparent; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.84rem; }
.btn-xs { padding: 0.15rem 0.45rem; font-size: 0.75rem; }
.btn-lg { padding: 0.75rem 1.4rem; font-size: 1rem; }
.btn-icon { padding: 0.3rem 0.55rem; }
.danger-text { color: var(--danger); }
.row-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; margin-top: 0.75rem; }

input[type="text"], input[type="number"], select, textarea {
  width: 100%; font: inherit; font-size: 0.92rem; color: var(--text);
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 0.5rem 0.65rem;
  font-weight: 400;
}
textarea { resize: vertical; }
textarea.code { font-family: var(--mono); font-size: 0.8rem; line-height: 1.45; }
input[type="range"] { width: 100%; accent-color: var(--accent); }
input[type="checkbox"] { accent-color: var(--accent); width: 1rem; height: 1rem; }
.field { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.85rem; font-weight: 550; }
.field > span { display: flex; justify-content: space-between; }
.field output { font-family: var(--mono); color: var(--accent); }
.check { display: flex; gap: 0.5rem; align-items: center; font-size: 0.9rem; cursor: pointer; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.form-grid .span-2 { grid-column: span 2; }
fieldset { border: 0; padding: 0; margin: 0; }
legend { font-size: 0.85rem; font-weight: 550; margin-bottom: 0.4rem; }

.badge { display: inline-block; font-size: 0.72rem; font-weight: 600; padding: 0.12rem 0.5rem; border-radius: 99px; text-transform: uppercase; letter-spacing: 0.04em; background: var(--surface-2); color: var(--muted); }
.badge-ok { background: var(--ok-soft); color: var(--ok); }
.badge-warn { background: var(--warn-soft); color: var(--warn); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }
.badge-accent { background: var(--accent-soft); color: var(--accent); }
.chip { display: inline-block; font-size: 0.78rem; font-family: var(--mono); padding: 0.1rem 0.5rem; border-radius: 6px; background: var(--surface-2); color: var(--muted); }
.chip-warn { background: var(--warn-soft); color: var(--warn); }
.chips { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 0.9rem; }
code.scope { background: var(--surface-2); padding: 0.1rem 0.4rem; border-radius: 5px; margin-right: 0.25rem; white-space: nowrap; }

.callout { padding: 0.65rem 0.85rem; border-radius: 8px; font-size: 0.9rem; margin: 0.6rem 0; }
.callout-error { background: var(--danger-soft); color: var(--danger); }
.callout-warn { background: var(--warn-soft); color: var(--warn); }
.empty { text-align: center; padding: 3rem 1rem; border: 1px dashed var(--border); border-radius: var(--radius); color: var(--muted); }
.empty h3 { color: var(--text); margin-bottom: 0.35rem; }
.loading { display: flex; align-items: center; gap: 0.6rem; color: var(--muted); padding: 1.5rem 0; }
.spin { width: 1rem; height: 1rem; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.disclaimer { font-size: 0.78rem; color: var(--muted); margin-top: 1rem; }

.table-wrap { overflow-x: auto; padding: 0; }
.table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.table th { text-align: left; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); font-weight: 600; }
.table th, .table td { padding: 0.55rem 0.75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--surface-2); }
.table tr.revoked td { color: var(--muted); }
table.mini { border-collapse: collapse; font-size: 0.82rem; }
table.mini td { padding: 0.15rem 0.75rem 0.15rem 0; }
.swatch { display: inline-block; width: 0.7rem; height: 0.7rem; border-radius: 3px; margin-right: 0.45rem; vertical-align: -1px; }

dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: 0.3rem 1rem; margin: 0; font-size: 0.88rem; }
dl.kv dt { color: var(--muted); }
dl.kv dd { margin: 0; word-break: break-all; }
dl.kv-small { font-size: 0.8rem; }

.dropzone {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.3rem; text-align: center;
  border: 1.5px dashed var(--border); border-radius: var(--radius); padding: 1.4rem 1rem; cursor: pointer;
  background: var(--bg); transition: border-color 0.15s, background 0.15s; min-height: 140px;
}
.dropzone:hover, .dropzone.over { border-color: var(--accent); background: var(--accent-soft); }
.dropzone-icon { color: var(--accent); }
.dropzone-label { font-weight: 600; }
.dropzone-hint { font-size: 0.8rem; color: var(--muted); }

.bar { display: block; height: 6px; background: var(--surface-2); border-radius: 99px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--accent); border-radius: 99px; transition: width 0.2s; }

/* ---- models ---- */
.upload-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 1.25rem; }
.upload-fields { display: flex; flex-direction: column; gap: 0.7rem; justify-content: center; }
.upload-progress { margin-top: 1rem; display: flex; flex-direction: column; gap: 0.6rem; }
.upload-row-head { display: flex; gap: 0.75rem; align-items: baseline; font-size: 0.88rem; margin-bottom: 0.3rem; flex-wrap: wrap; }
.upload-row-head > span:last-child { margin-left: auto; }
.upload-row.done .bar > span { background: var(--ok); width: 100% !important; }
.upload-row.failed .bar > span { background: var(--danger); width: 100% !important; }
.upload-row.failed .upload-row-head > span:last-child { color: var(--danger); }
.model-card { display: grid; grid-template-columns: 1fr auto; gap: 0.5rem 1rem; }
.model-card.is-default { border-left: 3px solid var(--accent); }
.model-title { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.model-meta { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; font-size: 0.85rem; margin-top: 0.3rem; }
.model-desc { margin: 0.4rem 0 0; font-size: 0.9rem; }
.model-actions { display: flex; gap: 0.35rem; align-items: flex-start; flex-wrap: wrap; justify-content: flex-end; }
.model-details { grid-column: 1 / -1; border-top: 1px solid var(--border); padding-top: 1rem; margin-top: 0.5rem; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
details.advanced { margin-top: 1rem; }
details.advanced summary { cursor: pointer; font-weight: 550; font-size: 0.9rem; }
details.advanced[open] summary { margin-bottom: 0.5rem; }

@media (max-width: 860px) {
  .upload-grid, .detail-grid { grid-template-columns: 1fr; }
  .model-card { grid-template-columns: 1fr; }
  .model-actions { justify-content: flex-start; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .span-2 { grid-column: auto; }
}

/* ---- playground ---- */
.playground { display: grid; grid-template-columns: 320px 1fr; gap: 1rem; align-items: start; }
.controls { display: flex; flex-direction: column; gap: 0.85rem; position: sticky; top: 4.5rem; }
.controls .dropzone { min-height: 110px; }
.file-info { font-size: 0.82rem; margin-top: -0.4rem; word-break: break-all; }
.output { min-height: 420px; }
.viewer { background: #0a0d12; border-radius: 8px; display: flex; align-items: center; justify-content: center; min-height: 320px; margin-bottom: 1rem; overflow: hidden; }
.viewer-empty { padding: 3rem; }
.viewer-canvas { max-width: 100%; max-height: 72vh; display: block; }
.class-bars { display: flex; flex-direction: column; gap: 0.45rem; }
.class-bar { display: grid; grid-template-columns: minmax(80px, 180px) 1fr 70px; gap: 0.75rem; align-items: center; font-size: 0.88rem; }
.class-bar .bar { height: 10px; }
details.json { margin-top: 1rem; }
details.json summary { cursor: pointer; font-size: 0.9rem; font-weight: 550; }
details.json pre, .code-block { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 0.8rem; overflow: auto; font-family: var(--mono); font-size: 0.78rem; line-height: 1.5; max-height: 460px; margin: 0.5rem 0 0; }

@media (max-width: 900px) {
  .playground { grid-template-columns: 1fr; }
  .controls { position: static; }
}

/* ---- keys & docs ---- */
.key-form { display: grid; grid-template-columns: 1fr 1.4fr auto; gap: 1.25rem; align-items: end; }
.key-form .row-actions { margin: 0; }
.scopes { display: flex; flex-direction: column; gap: 0.3rem; }
.secret { display: flex; align-items: center; gap: 0.75rem; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 0.6rem 0.8rem; margin: 0.5rem 0; }
.secret code { flex: 1; word-break: break-all; font-size: 0.85rem; }
.doc-section p { max-width: 80ch; }
.code-wrap { position: relative; }
.code-wrap > .btn { position: absolute; top: 0.9rem; right: 0.5rem; background: var(--surface); }
.tabs { display: flex; gap: 0.25rem; border-bottom: 1px solid var(--border); margin-bottom: 0.25rem; flex-wrap: wrap; }
.tab { font: inherit; font-size: 0.88rem; font-weight: 550; background: none; border: 0; border-bottom: 2px solid transparent; padding: 0.45rem 0.8rem; color: var(--muted); cursor: pointer; }
.tab[aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); }

@media (max-width: 860px) {
  .key-form { grid-template-columns: 1fr; }
}

/* ---- modal & toasts ---- */
dialog.modal { border: 1px solid var(--border); border-radius: 12px; padding: 0; background: var(--surface); color: var(--text); width: min(480px, calc(100vw - 2rem)); box-shadow: 0 20px 50px rgb(0 0 0 / 30%); }
dialog.modal-wide { width: min(720px, calc(100vw - 2rem)); }
dialog::backdrop { background: rgb(10 14 20 / 55%); }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 0.9rem 1.2rem; border-bottom: 1px solid var(--border); }
.modal-head h2 { margin: 0; font-size: 1.05rem; }
.modal-body { padding: 1rem 1.2rem; }
.modal-body p:first-child { margin-top: 0; }
.modal-actions { display: flex; justify-content: flex-end; gap: 0.5rem; padding: 0.8rem 1.2rem; border-top: 1px solid var(--border); }
#toasts { position: fixed; bottom: 1rem; right: 1rem; display: flex; flex-direction: column; gap: 0.5rem; z-index: 100; max-width: min(420px, calc(100vw - 2rem)); }
.toast { background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: 8px; padding: 0.65rem 0.9rem; box-shadow: 0 8px 24px rgb(0 0 0 / 18%); font-size: 0.9rem; transition: opacity 0.3s, transform 0.3s; }
.toast-success { border-left-color: var(--ok); }
.toast-error { border-left-color: var(--danger); }
.toast.leaving { opacity: 0; transform: translateY(6px); }

/* ---- sign-in ---- */
.signin { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.signin-card { max-width: 400px; width: 100%; text-align: center; padding: 2.25rem 2rem; display: flex; flex-direction: column; align-items: center; gap: 0.6rem; }
.signin-card h1 { margin-top: 0.5rem; }
.signin-card p { margin: 0 0 0.75rem; }

/* ---- settings ---- */
.key-fields { display: grid; gap: 0.75rem; }
.user-form { display: grid; grid-template-columns: 1.4fr 0.7fr 1fr auto; gap: 0.75rem; align-items: end; margin: 1.25rem 0 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }
select.compact { width: auto; padding: 0.3rem 0.5rem; font-size: 0.85rem; }
.row-actions.tight { margin: 0; flex-wrap: nowrap; }
dl.roles { margin-top: 0.5rem; }
dl.roles dt { text-transform: capitalize; font-weight: 600; color: var(--text); }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
h3.sub { font-size: 0.95rem; margin: 1.5rem 0 0.5rem; }
ul.checks { list-style: none; padding: 0; margin: 0.5rem 0 0; display: flex; flex-direction: column; gap: 0.5rem; }
.check-item { display: grid; grid-template-columns: 5.5rem 1fr; gap: 0.75rem; align-items: start; padding: 0.65rem 0.8rem; border: 1px solid var(--border); border-radius: 8px; }
.check-item .badge { justify-self: start; margin-top: 0.1rem; }
.check-item p { margin: 0.15rem 0 0; font-size: 0.88rem; color: var(--muted); }
.check-warning { border-color: var(--warn); background: var(--warn-soft); }
ol.manual { padding-left: 1.25rem; margin: 0.5rem 0 0; }
ol.manual li { margin-bottom: 0.6rem; }
ol.manual p { margin: 0.15rem 0 0; }

@media (max-width: 860px) {
  .user-form { grid-template-columns: 1fr; }
  .check-item { grid-template-columns: 1fr; gap: 0.35rem; }
}