:root {
  --canvas: #f3f5f1;
  --surface: #ffffff;
  --ink: #18211d;
  --muted: #68736c;
  --line: #d9dfd9;
  --line-strong: #c6cec7;
  --green: #176b50;
  --green-dark: #0f503b;
  --green-soft: #e6f1eb;
  --amber: #a65f12;
  --amber-soft: #fff3d7;
  --coral: #a84339;
  --coral-soft: #fbeae7;
  --charcoal: #25312b;
  --code: #172a23;
  font-family: Inter, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--canvas);
  font-size: 14px;
  line-height: 1.6;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; background: var(--canvas); }
button, input, select, textarea { font: inherit; letter-spacing: 0; }
button { cursor: pointer; white-space: nowrap; }
button:disabled { cursor: not-allowed; opacity: .48; }
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }

.topbar {
  min-height: 72px;
  padding: 14px max(24px, calc((100vw - 1180px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 750; }
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--charcoal);
  border-radius: 6px;
  font: 700 12px ui-monospace, Consolas, monospace;
}
.brand small { display: block; color: var(--muted); font: 9px ui-monospace, Consolas, monospace; margin-top: 1px; }
.top-actions { display: flex; align-items: center; gap: 20px; }
.quiet-link { color: var(--green); font-size: 12px; font-weight: 650; }
.status-dot { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; }
.status-dot::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
.muted-status::before { background: #99a29d; }

main { max-width: 1180px; margin: 0 auto; padding: 34px 24px 56px; }
.notice { margin: 0 0 20px; padding: 11px 14px; border-left: 3px solid var(--green); background: var(--green-soft); color: var(--green-dark); border-radius: 0 5px 5px 0; }
.notice:empty { display: none; }
.notice.error { border-color: var(--coral); background: var(--coral-soft); color: #842f28; }
.notice.warn { border-color: var(--amber); background: var(--amber-soft); color: #794309; }

.auth-view { min-height: 610px; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(340px, .7fr); gap: 80px; align-items: center; }
.auth-copy { max-width: 620px; }
.kicker { color: var(--green); font: 700 10px ui-monospace, Consolas, monospace; letter-spacing: .14em; }
h1, h2, p { overflow-wrap: anywhere; }
h1 { margin: 12px 0 16px; font-size: 44px; line-height: 1.14; letter-spacing: 0; }
h2 { margin: 4px 0 10px; font-size: 21px; line-height: 1.3; letter-spacing: 0; }
.auth-copy > p { max-width: 570px; color: var(--muted); font-size: 15px; }
.security-list { margin: 34px 0 0; border-top: 1px solid var(--line-strong); }
.security-list > div { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.security-list dt { color: var(--muted); font-size: 12px; }
.security-list dd { margin: 0; font-weight: 650; font-size: 12px; }

.auth-panel, .admin-login {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  padding: 28px;
  box-shadow: 0 12px 34px rgba(37, 49, 43, .07);
}
.segmented { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 4px; background: #eef1ed; border-radius: 6px; margin-bottom: 25px; }
.segmented button { border: 0; border-radius: 4px; padding: 8px; background: transparent; color: var(--muted); font-weight: 650; }
.segmented button.active { background: var(--surface); color: var(--ink); box-shadow: 0 1px 4px rgba(37, 49, 43, .08); }
form label, .field-block label, .new-codes > label { display: block; color: var(--muted); font-size: 11px; font-weight: 650; margin-bottom: 6px; }
form > input, .admin-form input {
  width: 100%;
  min-height: 43px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  padding: 9px 11px;
  background: #fbfcfa;
  outline: none;
  margin-bottom: 16px;
}
input:focus, select:focus, textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(23, 107, 80, .1); }
.form-note { margin: 17px 0 0; color: var(--muted); font-size: 11px; }

.primary, .secondary, .danger { min-height: 36px; border-radius: 5px; padding: 7px 13px; font-weight: 650; }
.primary { color: #fff; background: var(--green); border: 1px solid var(--green); }
.primary:hover { background: var(--green-dark); }
.secondary { color: var(--charcoal); background: var(--surface); border: 1px solid var(--line-strong); }
.secondary:hover { border-color: #98a79e; background: #f8faf7; }
.danger { color: var(--coral); background: transparent; border: 1px solid #e3b4ae; }
.danger:hover { background: var(--coral-soft); }
.wide { width: 100%; }

.identity-row { min-height: 122px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--line-strong); }
.identity-row h1 { margin: 7px 0 2px; font-size: 27px; }
.identity-badges, .heading-actions { display: flex; gap: 9px; align-items: center; flex-wrap: wrap; }
.pill { min-height: 28px; display: inline-flex; align-items: center; padding: 3px 9px; color: #6f470d; background: var(--amber-soft); border: 1px solid #ead3a2; border-radius: 99px; font-size: 11px; }
.pill.green { color: var(--green-dark); background: var(--green-soft); border-color: #b9d8c7; }
.muted { color: var(--muted); font-size: 12px; }

.recovery-banner { margin: 22px 0 0; padding: 20px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .8fr); align-items: center; gap: 30px; background: var(--amber-soft); border: 1px solid #e7ca8e; border-radius: 6px; }
.recovery-banner p { margin: 0; color: #74552c; font-size: 12px; }
.recovery-actions { display: flex; align-items: center; gap: 10px; }
.recovery-actions .copy-field { flex: 1; }

.section-nav { position: sticky; top: 0; z-index: 5; margin: 24px 0 0; display: flex; gap: 26px; padding: 12px 0; background: rgba(243, 245, 241, .96); border-bottom: 1px solid var(--line); }
.section-nav a { color: var(--muted); font-size: 12px; font-weight: 650; }
.section-nav a:hover { color: var(--green); }
.workspace-section { padding: 38px 0; border-bottom: 1px solid var(--line-strong); scroll-margin-top: 48px; }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 22px; }
.section-heading h2 { margin-bottom: 0; }

.connection-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.copy-field { display: flex; align-items: stretch; min-width: 0; border: 1px solid var(--line-strong); border-radius: 5px; background: var(--surface); overflow: hidden; }
.copy-field input, .copy-field select, .copy-field textarea { min-width: 0; width: 0; flex: 1; border: 0; outline: 0; background: transparent; padding: 10px 11px; color: #29463a; font: 12px ui-monospace, Consolas, monospace; }
.copy-field button { min-width: 48px; border: 0; border-left: 1px solid var(--line); background: #f8faf7; color: var(--green); font-size: 11px; }
.copy-field button:hover { background: var(--green-soft); }
pre { min-height: 76px; margin: 18px 0 0; padding: 15px; border-radius: 5px; background: var(--code); color: #dcebe3; font: 11px/1.75 ui-monospace, Consolas, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }

.dropzone { height: 185px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; border: 1px dashed #91a49a; border-radius: 6px; background: var(--surface); cursor: pointer; }
.dropzone.drag { border-color: var(--green); background: var(--green-soft); }
.dropzone input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.file-symbol { margin-bottom: 7px; color: var(--green); font: 25px Georgia, serif; }
.dropzone small { color: var(--muted); font-size: 11px; }
.selected-files { min-height: 24px; padding: 8px 0 0; color: var(--muted); font-size: 11px; }
.consent { display: flex; align-items: flex-start; gap: 9px; margin: 13px 0 17px; color: var(--muted); font-size: 12px; }
.consent input { accent-color: var(--green); margin-top: 4px; }

.account-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.account-card { min-width: 0; padding: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; }
.account-title { display: flex; justify-content: space-between; gap: 14px; margin-bottom: 16px; }
.account-title strong { display: block; overflow-wrap: anywhere; }
.account-title small { color: var(--muted); }
.plan { color: var(--green-dark); background: var(--green-soft); border-radius: 4px; padding: 3px 7px; font-size: 10px; align-self: flex-start; }
.quota-block { padding: 12px 0; border-top: 1px solid #edf0ec; }
.quota-head { display: flex; justify-content: space-between; gap: 15px; margin-bottom: 7px; font-size: 12px; }
.quota-head span { color: var(--green); font: 12px ui-monospace, Consolas, monospace; }
.quota-track { height: 8px; overflow: hidden; border-radius: 99px; background: #e7ece8; }
.quota-track > span { display: block; height: 100%; width: 0; background: var(--green); border-radius: inherit; transition: width .25s ease; }
.quota-track.notice > span { background: var(--amber); }
.quota-track.warn > span { background: var(--coral); }
.quota-group { margin-top: 10px; border-top: 1px solid var(--line-strong); }
.quota-label { display: block; padding-top: 12px; color: var(--ink); font-weight: 650; overflow-wrap: anywhere; }
.observed-quota .quota-label { color: var(--amber); }
.quota-block small, .quota-updated { display: block; margin-top: 6px; color: var(--muted); font-size: 10px; }
.prism-card { border-color: #b9d8c7; }
.channel-status { border-top: 1px solid #edf0ec; }
.channel-status > div { display: flex; justify-content: space-between; gap: 18px; padding: 8px 0; border-bottom: 1px solid #edf0ec; font-size: 11px; }
.channel-status span { color: var(--muted); }
.model-chips { display: flex; flex-wrap: wrap; gap: 6px; padding-top: 13px; }
.model-chips span { padding: 3px 7px; border: 1px solid var(--line); border-radius: 4px; background: #f8faf7; color: var(--green-dark); font: 10px ui-monospace, Consolas, monospace; }
.empty { grid-column: 1 / -1; padding: 28px 12px; text-align: center; color: var(--muted); border: 1px dashed var(--line-strong); border-radius: 6px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 760px; font-size: 11px; }
th { padding: 9px 8px; text-align: left; color: var(--muted); font-weight: 650; border-bottom: 1px solid var(--line-strong); }
td { padding: 12px 8px; border-bottom: 1px solid var(--line); }
.status-ok { color: var(--green); }
.status-error { color: var(--coral); }
.event-list { border-top: 1px solid var(--line); }
.event-row { display: grid; grid-template-columns: 170px 90px 1fr; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 11px; }
.event-row time, .event-kind { color: var(--muted); font-family: ui-monospace, Consolas, monospace; }

footer { max-width: 1180px; margin: 0 auto; padding: 22px 24px 32px; display: flex; justify-content: space-between; gap: 20px; color: #7d8781; font: 10px ui-monospace, Consolas, monospace; }

.admin-main { max-width: 1000px; }
.admin-login { max-width: 430px; margin: 90px auto; }
.admin-login h1 { font-size: 30px; }
.admin-form { display: grid; grid-template-columns: repeat(3, minmax(120px, 1fr)) auto; align-items: end; gap: 14px; }
.admin-form label { margin: 0; }
.admin-form input { margin: 5px 0 0; }
.new-codes { margin-top: 22px; }
.new-codes textarea { min-height: 100px; resize: vertical; line-height: 1.7; }
.code-list { border-top: 1px solid var(--line-strong); }
.code-row { display: grid; grid-template-columns: minmax(180px, 1fr) minmax(230px, 1.4fr) auto; align-items: center; gap: 18px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.code-row strong { font: 12px ui-monospace, Consolas, monospace; }
.code-row p { margin: 2px 0 0; color: var(--muted); font-size: 11px; }
.code-actions { display: flex; gap: 7px; }

@media (max-width: 780px) {
  .topbar { padding: 12px 18px; }
  main { padding: 24px 18px 42px; }
  .auth-view { min-height: auto; grid-template-columns: 1fr; gap: 32px; padding: 30px 0; }
  h1 { font-size: 34px; }
  .auth-copy > p { font-size: 13px; }
  .identity-row { align-items: flex-start; flex-direction: column; padding: 24px 0; }
  .recovery-banner { grid-template-columns: 1fr; }
  .recovery-actions { align-items: stretch; flex-direction: column; }
  .section-nav { overflow-x: auto; gap: 20px; }
  .connection-grid { grid-template-columns: 1fr; }
  .connection-grid .field-block:last-child { grid-column: auto; max-width: none; }
  .account-grid { grid-template-columns: 1fr; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .event-row { grid-template-columns: 1fr; gap: 1px; }
  .admin-form { grid-template-columns: 1fr; }
  .code-row { grid-template-columns: 1fr; }
  footer { flex-direction: column; padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}