:root {
  --ink: #173d39;
  --ink-2: #24564f;
  --paper: #fffdf8;
  --canvas: #f2eee7;
  --line: rgba(23, 61, 57, 0.12);
  --muted: #756f69;
  --gold: #f4d9aa;
  --peach: #c87858;
  --mint: #dcece5;
  --shadow: 0 22px 55px rgba(31, 55, 50, 0.1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, "Microsoft YaHei", system-ui, sans-serif;
  background: var(--canvas);
}

button, textarea, input, select { font: inherit; }
button { cursor: pointer; }

.auth-gate {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 22% 18%, rgba(244, 217, 170, .42), transparent 28%),
    linear-gradient(145deg, #f5f0e8, #dcece5);
}

.auth-card {
  width: min(100%, 430px);
  padding: 38px;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 28px;
  text-align: center;
  background: rgba(255,253,248,.92);
  box-shadow: 0 28px 90px rgba(23,61,57,.17);
}

.auth-mark { display: grid; width: 58px; height: 58px; place-items: center; margin: 0 auto 20px; border-radius: 20px; font-size: 30px; background: var(--gold); }
.auth-card h1 { margin-top: 8px; font-size: 31px; }
.auth-card p { margin: 13px 0 22px; color: var(--muted); font-size: 11px; line-height: 1.7; }
.auth-card small { display: block; margin-top: 15px; color: #8d857c; font-size: 9px; line-height: 1.65; }
.auth-button { display: flex; width: 100%; min-height: 48px; align-items: center; justify-content: center; border: 0; border-radius: 14px; color: #fff; font-size: 12px; font-weight: 800; text-decoration: none; background: var(--ink); }
.auth-button[disabled] { opacity: .6; cursor: progress; }
.auth-button-quiet { color: var(--ink); background: transparent; box-shadow: inset 0 0 0 1px var(--line); }
.auth-pending .auth-button, .auth-pending .auth-form { display: none; }

.auth-form { display: grid; gap: 6px; text-align: left; }
.auth-form[hidden] { display: none; }
.auth-form label { color: var(--muted); font-size: 9px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.auth-form input {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 13px;
  color: var(--ink);
  font-size: 12px;
  background: #fff;
}
.auth-form input:focus-visible { border-color: var(--ink-2); outline: 2px solid rgba(23, 61, 57, .18); outline-offset: 1px; }
.auth-form label + input, .auth-form label + .auth-secret { margin-bottom: 10px; }
.auth-secret { position: relative; display: flex; align-items: center; }
.auth-secret input { padding-right: 56px; }
.auth-secret button {
  position: absolute;
  right: 8px;
  padding: 6px 8px;
  border: 0;
  border-radius: 9px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  background: transparent;
}
.auth-secret button:hover { color: var(--ink); background: var(--mint); }
.auth-error {
  margin: 0 0 10px !important;
  padding: 9px 12px;
  border-radius: 11px;
  color: #8f3a30 !important;
  font-size: 10px !important;
  text-align: left;
  background: rgba(200, 120, 88, .13);
}
.auth-error[hidden] { display: none; }
.authenticated .auth-gate { display: none; }
.auth-required .admin-sidebar, .auth-required main, .auth-pending .admin-sidebar, .auth-pending main { visibility: hidden; }

.admin-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 5;
  display: flex;
  width: 235px;
  flex-direction: column;
  padding: 27px 19px;
  color: #fff;
  background: linear-gradient(170deg, #173d39, #204c46 72%, #594b43);
}

.brand {
  display: flex;
  gap: 11px;
  align-items: center;
  color: inherit;
  text-decoration: none;
}

.brand > span {
  display: grid;
  width: 43px;
  height: 43px;
  place-items: center;
  border-radius: 15px;
  color: var(--ink);
  font-size: 22px;
  background: var(--gold);
}

.brand b, .brand small { display: block; }
.brand b { font-size: 14px; }
.brand small { margin-top: 3px; color: rgba(255,255,255,.48); font-size: 8px; }

.admin-sidebar nav {
  display: grid;
  gap: 7px;
  margin-top: 50px;
}

.admin-sidebar nav button {
  position: relative;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 9px;
  align-items: center;
  padding: 12px 10px;
  border: 0;
  border-radius: 13px;
  color: rgba(255,255,255,.58);
  text-align: left;
  background: transparent;
}

.admin-sidebar nav button.active {
  color: #fff;
  background: rgba(255,255,255,.1);
}

.admin-sidebar nav i { font-style: normal; text-align: center; }
.admin-sidebar nav span { font-size: 11px; font-weight: 700; }
.admin-sidebar nav em { grid-column: 2; color: rgba(255,255,255,.3); font-size: 7px; font-style: normal; }

.family-link {
  display: flex;
  justify-content: space-between;
  margin-top: auto;
  padding: 13px 14px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 14px;
  color: #fff;
  font-size: 10px;
  text-decoration: none;
}

main {
  min-height: 100vh;
  margin-left: 235px;
  padding: 34px 40px 60px;
}

.admin-topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.topbar-actions { display: flex; gap: 9px; align-items: center; }
.admin-identity { max-width: 190px; overflow: hidden; color: var(--muted); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.signout-button { display: flex; min-height: 43px; align-items: center; padding: 0 13px; border: 1px solid var(--line); border-radius: 13px; color: var(--muted); font-size: 9px; text-decoration: none; background: rgba(255,253,248,.65); }

.eyebrow {
  color: var(--peach);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

h1, h2 { margin: 0; font-family: Georgia, "Noto Serif SC", serif; font-weight: 500; }
h1 { margin-top: 6px; font-size: 34px; }
h2 { font-size: 22px; }

.settings-button {
  display: flex;
  gap: 8px;
  align-items: center;
  min-height: 43px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 13px;
  color: var(--ink);
  background: var(--paper);
  box-shadow: 0 8px 20px rgba(31,55,50,.05);
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 27px;
}

.status-grid article {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,253,248,.78);
}

.status-grid span, .status-grid small, .status-grid strong { display: block; }
.status-grid span { color: var(--muted); font-size: 8px; }
.status-grid strong { margin: 8px 0 4px; font-family: Georgia, serif; font-size: 28px; font-weight: 500; }
.status-grid strong.mode-value { font-family: inherit; font-size: 15px; font-weight: 700; }
.status-grid small { color: #9b938a; font-size: 8px; }

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 295px;
  gap: 18px;
  margin-top: 18px;
}

.chat-column, .control-column section {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.chat-column { padding: 25px; }
.chat-heading { display: flex; justify-content: space-between; gap: 20px; }
.chat-heading h2 { margin-top: 5px; }
.chat-heading p { margin: 6px 0 0; color: var(--muted); font-size: 9px; }
.text-button { border: 0; color: var(--ink-2); font-size: 9px; background: transparent; }

.messages {
  display: grid;
  gap: 15px;
  height: 465px;
  overflow-y: auto;
  margin-top: 20px;
  padding: 20px;
  border-radius: 18px;
  background: #f5f2ec;
}

.message {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.message.user { grid-template-columns: minmax(0, 1fr); justify-items: end; }
.message.user > div { max-width: 78%; color: #fff; background: var(--ink); }
.message > div { padding: 13px 15px; border-radius: 5px 16px 16px 16px; font-size: 10px; line-height: 1.75; background: #fff; }
.message p { margin: 6px 0 0; white-space: pre-wrap; }
.avatar { display: grid; width: 34px; height: 34px; place-items: center; border-radius: 12px; color: var(--ink); background: var(--gold); }
.message.loading > div { color: var(--muted); }

.source-list {
  display: grid;
  gap: 5px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.source-list a { color: var(--ink-2); font-size: 8px; text-decoration: none; }
.answer-mode { display: inline-flex; margin-bottom: 7px; padding: 3px 7px; border-radius: 999px; color: var(--ink-2); font-size: 7px; background: var(--mint); }
.answer-warning { margin-top: 9px; color: #9a593f; font-size: 8px; }

.prompt-row { display: flex; gap: 6px; margin-top: 12px; overflow-x: auto; }
.prompt-row button { flex: 0 0 auto; padding: 8px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-2); font-size: 8px; background: #fff; }

.admin-chat-form {
  display: grid;
  grid-template-columns: 1fr 46px;
  gap: 9px;
  margin-top: 10px;
}

.admin-chat-form textarea {
  resize: vertical;
  min-height: 72px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 15px;
  outline: none;
  background: #fff;
}

.admin-chat-form textarea:focus { border-color: rgba(23,61,57,.45); box-shadow: 0 0 0 3px rgba(220,236,229,.7); }
.admin-chat-form button { border: 0; border-radius: 15px; color: #fff; font-size: 22px; background: var(--ink); }
.privacy-note { margin: 9px 0 0; color: #8d857c; font-size: 7px; line-height: 1.6; }

.control-column { display: grid; align-content: start; gap: 12px; }
.control-column section { padding: 21px; }
.control-column h2 { margin-top: 5px; }
.control-column ul { display: grid; gap: 12px; margin: 18px 0 0; padding: 0; list-style: none; }
.control-column li { display: grid; grid-template-columns: 25px 1fr; gap: 9px; }
.control-column li i { display: grid; width: 25px; height: 25px; place-items: center; border-radius: 50%; color: var(--ink); font-size: 8px; font-style: normal; background: var(--mint); }
.control-column li b, .control-column li small { display: block; }
.control-column li b { font-size: 9px; }
.control-column li small { margin-top: 3px; color: var(--muted); font-size: 8px; line-height: 1.55; }

.control-column section.provider-card { display: grid; gap: 15px; background: linear-gradient(135deg, #173d39, #285b54); }
.provider-card > div { display: flex; gap: 9px; align-items: center; color: #fff; }
.provider-card b, .provider-card small { display: block; }
.provider-card b { font-size: 10px; }
.provider-card small { margin-top: 3px; color: rgba(255,255,255,.5); font-size: 8px; }
.provider-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.35); }
.provider-dot.on { background: #9dd6b8; box-shadow: 0 0 14px rgba(157,214,184,.8); }
.provider-card button { min-height: 38px; border: 1px solid rgba(255,255,255,.16); border-radius: 11px; color: #fff; font-size: 9px; background: rgba(255,255,255,.08); }

dialog {
  width: min(92vw, 600px);
  padding: 27px;
  border: 0;
  border-radius: 23px;
  color: var(--ink);
  background: var(--paper);
  box-shadow: 0 30px 90px rgba(15,35,31,.28);
}

dialog::backdrop { background: rgba(10,30,27,.58); backdrop-filter: blur(6px); }
.dialog-close { position: absolute; right: 15px; top: 15px; width: 32px; height: 32px; border: 0; border-radius: 50%; background: #f1ede7; }
dialog h2 { margin-top: 6px; font-size: 27px; }
dialog > p { color: var(--muted); font-size: 10px; line-height: 1.7; }
dialog form { display: grid; gap: 13px; margin-top: 19px; }
dialog label { display: grid; gap: 6px; color: var(--ink-2); font-size: 9px; font-weight: 700; }
dialog input, dialog select { width: 100%; min-height: 45px; padding: 0 12px; border: 1px solid var(--line); border-radius: 12px; color: var(--ink); background: #fff; }
.secret-field { display: grid; grid-template-columns: 1fr 64px; }
.secret-field input { border-radius: 12px 0 0 12px; }
.secret-field button { border: 1px solid var(--line); border-left: 0; border-radius: 0 12px 12px 0; color: var(--ink-2); background: #f5f1eb; }
.settings-boundary { display: grid; gap: 4px; padding: 13px; border-radius: 13px; background: var(--mint); }
.settings-boundary b { font-size: 9px; }
.settings-boundary span { color: var(--muted); font-size: 8px; line-height: 1.55; }
.primary { min-height: 46px; border: 0; border-radius: 13px; color: #fff; font-weight: 700; background: var(--ink); }

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  max-width: 370px;
  padding: 13px 16px;
  border-radius: 13px;
  color: #fff;
  font-size: 9px;
  opacity: 0;
  pointer-events: none;
  background: var(--ink);
  transform: translateY(8px);
  transition: .2s ease;
}

.toast.show { opacity: 1; transform: none; }

.records-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.record-card {
  padding: 16px;
  border: 1px solid var(--line, #e7e2d8);
  border-radius: 16px;
  background: #fff;
}

.record-card span { display: block; color: var(--muted); font-size: 11px; }
.record-card strong {
  display: block;
  margin-top: 6px;
  font-family: Georgia, serif;
  font-size: 26px;
  font-weight: 500;
  color: var(--ink-2);
}

.records-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.secondary-button {
  padding: 9px 16px;
  border: 1px solid var(--line, #e7e2d8);
  border-radius: 10px;
  background: #fff;
  color: var(--ink-2);
  font: inherit;
  cursor: pointer;
}

.danger-button {
  padding: 9px 16px;
  border: 1px solid #e7b7ab;
  border-radius: 10px;
  background: #fbeae5;
  color: #a23c24;
  font: inherit;
  cursor: pointer;
}

@media (max-width: 980px) {
  .admin-sidebar { position: static; width: auto; }
  .admin-sidebar nav { display: none; }
  .family-link { margin-top: 18px; }
  main { margin-left: 0; padding: 25px 20px 50px; }
  .status-grid { grid-template-columns: repeat(2, 1fr); }
  .workspace { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .admin-topbar { display: grid; }
  .topbar-actions { flex-wrap: wrap; }
  .admin-identity { width: 100%; max-width: none; }
  .status-grid { grid-template-columns: 1fr 1fr; }
  .chat-column { padding: 16px; }
  .messages { height: 430px; padding: 13px; }
  .message.user > div { max-width: 90%; }
}