:root {
  color-scheme: light;
  --bg: #f7f5f1;
  --bg-alt: #f0ede7;
  --surface: rgba(255, 255, 255, .92);
  --surface-solid: #fff;
  --ink: #282723;
  --muted: #68655e;
  --subtle: #8a867e;
  --line: rgba(52, 49, 43, .13);
  --line-strong: rgba(52, 49, 43, .24);
  --pink: #d94d88;
  --pink-soft: #fff1f7;
  --blue: #56add8;
  --blue-soft: #edf8fd;
  --safe: #34845e;
  --safe-soft: #edf8f2;
  --warning: #9a6716;
  --warning-soft: #fff5df;
  --danger: #b43a39;
  --danger-soft: #fff0ef;
  --shadow: 0 18px 50px rgba(49, 43, 34, .07);
  --font-serif: Georgia, "Times New Roman", serif;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { color: var(--ink); background: var(--bg); font-family: var(--font-sans); }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }
code { font-family: var(--font-mono); font-size: .9em; }
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 9px; }

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 246px minmax(0, 1fr);
  grid-template-rows: 44px minmax(0, 1fr);
  grid-template-areas: "topbar topbar" "sidebar main";
}

.topbar {
  grid-area: topbar;
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  height: 44px;
  padding: 0 16px;
  color: #4a4741;
  background: rgba(237, 233, 225, .92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
  font-family: var(--font-mono);
  font-size: 10.5px;
}
.topbar-lockup, .topbar-status { display: flex; align-items: center; gap: 7px; min-width: 0; }
.topbar-lockup strong { margin-left: 3px; font-family: var(--font-serif); font-size: 14px; letter-spacing: -.02em; }
.topbar-lockup small { color: var(--subtle); font-size: 9px; }
.topbar-center { color: var(--subtle); letter-spacing: .08em; }
.topbar-status { justify-content: flex-end; color: var(--muted); }
.traffic-dot, .status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line-strong); }
.traffic-dot.blue { background: var(--blue); }
.traffic-dot.pink { background: var(--pink); }
.status-dot { width: 6px; height: 6px; background: var(--safe); box-shadow: 0 0 0 4px rgba(52,132,94,.09); }

.sidebar {
  grid-area: sidebar;
  position: sticky;
  top: 44px;
  height: calc(100vh - 44px);
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 22px 14px 16px;
  overflow-y: auto;
  background: rgba(244, 241, 235, .9);
  border-right: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; padding: 0 8px 6px; }
.brand img { width: 52px; height: 42px; object-fit: cover; object-position: 50% 57%; border-radius: 9px; background: #fff; border: 1px solid var(--line); }
.brand strong { display: block; font-family: var(--font-serif); font-size: 16px; letter-spacing: -.025em; }
.brand small { display: block; margin-top: 3px; color: var(--subtle); font-family: var(--font-mono); font-size: 9px; }
.nav-label, .eyebrow { color: var(--pink); font-family: var(--font-mono); font-size: 9.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.nav-label { padding: 0 10px; color: var(--subtle); }
.nav { display: grid; gap: 3px; }
.nav button {
  width: 100%;
  min-height: 38px;
  display: grid;
  grid-template-columns: 22px 1fr;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  color: #656159;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-align: left;
}
.nav button span { display: grid; place-items: center; color: var(--subtle); font-size: 14px; }
.nav button:hover { color: var(--ink); background: rgba(255,255,255,.62); border-color: var(--line); }
.nav button.active { color: var(--ink); background: #fff; border-color: var(--line-strong); box-shadow: 0 7px 24px rgba(49,43,34,.05); }
.nav button.active span { color: var(--pink); }
.sidebar-footer { margin-top: auto; display: grid; gap: 10px; padding: 14px 9px 2px; color: var(--subtle); border-top: 1px solid var(--line); font-family: var(--font-mono); font-size: 9.5px; line-height: 1.5; }
.sidebar-footer a { display: flex; justify-content: space-between; color: var(--ink); text-decoration: none; }

.main {
  grid-area: main;
  width: 100%;
  min-width: 0;
  padding: 42px clamp(24px, 4vw, 64px) 64px;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% -8%, rgba(217,77,136,.08), transparent 31%),
    radial-gradient(circle at 7% 4%, rgba(86,173,216,.08), transparent 30%),
    var(--bg);
}
.page { display: none; max-width: 1440px; margin: 0 auto; animation: page-in .22s ease-out; }
.page.active { display: block; }
@keyframes page-in { from { opacity: 0; transform: translateY(4px); } }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 22px; margin-bottom: 26px; }
.page-head h1 { margin: 6px 0 5px; font-family: var(--font-serif); font-size: clamp(27px, 3vw, 38px); font-weight: 500; line-height: 1.08; letter-spacing: -.035em; }
.page-head h2 { font-family: var(--font-serif); }
.page-head p { margin: 0; color: var(--muted); font-family: var(--font-mono); font-size: 11px; line-height: 1.55; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.section-head h2 { margin: 6px 0 0; font-family: var(--font-serif); font-size: 23px; font-weight: 500; }

.button {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 12px;
  color: var(--ink);
  background: rgba(255,255,255,.76);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 650;
  text-decoration: none;
  transition: .16s ease;
}
.button:hover { background: #fff; border-color: rgba(52,49,43,.38); transform: translateY(-1px); }
.button:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.button.primary { color: #fff; background: var(--pink); border-color: var(--pink); }
.button.primary:hover { background: #c84178; }
.button.danger { color: var(--danger); background: var(--danger-soft); border-color: rgba(180,58,57,.22); }
.button.small { min-height: 29px; padding: 5px 8px; font-size: 9.5px; }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 11px; margin-bottom: 22px; }
.stat, .card { background: var(--surface); border: 1px solid var(--line); border-radius: 11px; box-shadow: var(--shadow); backdrop-filter: blur(16px); }
.stat { min-height: 114px; position: relative; padding: 19px; overflow: hidden; }
.stat::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 2px; background: var(--blue); opacity: .7; }
.stat:nth-child(even)::before, .stat.accent-stat::before { background: var(--pink); }
.stat span { color: var(--subtle); font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .05em; text-transform: uppercase; }
.stat strong { display: block; margin-top: 12px; font-family: var(--font-serif); font-size: 34px; font-weight: 500; letter-spacing: -.04em; }
.card { padding: 22px; margin-bottom: 17px; }
.card h2 { margin: 0 0 16px; font-family: var(--font-serif); font-size: 21px; font-weight: 500; }
.card h3 { font-family: var(--font-serif); }
.compact-card { padding: 12px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 11px; }
.capability-grid .notice { min-height: 135px; }
.notice { position: relative; padding: 16px; color: #3d3b36; background: #faf9f6; border: 1px solid var(--line); border-radius: 8px; font-size: 12px; line-height: 1.55; }
.notice > span { display: block; margin-bottom: 18px; color: var(--pink); font-family: var(--font-mono); font-size: 9px; }
.notice strong { display: inline-block; margin-bottom: 5px; font-family: var(--font-serif); font-size: 15px; font-weight: 600; }
.notice.info { color: #315468; background: var(--blue-soft); border-color: rgba(86,173,216,.25); }

.field { display: grid; gap: 7px; }
.field label { color: #56534c; font-family: var(--font-mono); font-size: 9.5px; font-weight: 700; letter-spacing: .045em; text-transform: uppercase; }
.field small { color: var(--subtle); font-family: var(--font-mono); font-size: 9.5px; line-height: 1.45; }
.field input, .field textarea, .field select, .search {
  width: 100%;
  min-height: 40px;
  padding: 9px 11px;
  color: var(--ink);
  background: rgba(255,255,255,.88);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  outline: none;
}
.field textarea { min-height: 105px; resize: vertical; line-height: 1.5; }
.field input:focus, .field textarea:focus, .field select:focus, .search:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(86,173,216,.13); }
.check-row { display: flex; align-items: center; gap: 10px; padding: 11px 12px; background: var(--bg); border: 1px solid var(--line); border-radius: 7px; font-size: 12px; }
.check-row input { accent-color: var(--pink); }
.toolbar { display: flex; flex-wrap: wrap; gap: 9px; align-items: center; margin-bottom: 14px; }
.toolbar .search { max-width: 380px; }
.actions { display: flex; flex-wrap: wrap; gap: 7px; }

.table-wrap { overflow-x: auto; background: rgba(255,255,255,.9); border: 1px solid var(--line); border-radius: 9px; box-shadow: 0 12px 38px rgba(49,43,34,.04); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 13px 14px; text-align: left; border-bottom: 1px solid rgba(52,49,43,.09); vertical-align: middle; }
th { color: var(--subtle); background: #f5f3ef; font-family: var(--font-mono); font-size: 8.5px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; }
td { color: #42403b; font-size: 12.5px; }
td strong { color: var(--ink); }
td small { color: var(--subtle); font-family: var(--font-mono); font-size: 9.5px; line-height: 1.5; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: rgba(86,173,216,.035); }
.thumb { width: 48px; height: 48px; object-fit: cover; border-radius: 7px; background: var(--bg-alt); border: 1px solid var(--line); }
.badge { display: inline-flex; align-items: center; padding: 4px 8px; color: #666158; background: var(--bg-alt); border: 1px solid var(--line); border-radius: 999px; font-family: var(--font-mono); font-size: 8.5px; font-weight: 700; text-transform: uppercase; }
.badge.ok { color: var(--safe); background: var(--safe-soft); border-color: rgba(52,132,94,.18); }
.badge.warn { color: var(--warning); background: var(--warning-soft); border-color: rgba(154,103,22,.18); }
.check { color: var(--safe); font-weight: 800; }
.empty { padding: 42px; color: var(--subtle); font-family: var(--font-mono); text-align: center; }

.modal { position: fixed; inset: 0; z-index: 40; display: none; align-items: center; justify-content: center; padding: 20px; background: rgba(42,39,34,.36); backdrop-filter: blur(8px); }
.modal.open { display: flex; }
.modal-panel { width: min(900px, 100%); max-height: 92vh; overflow-y: auto; background: #fff; border: 1px solid rgba(255,255,255,.7); border-radius: 12px; box-shadow: 0 32px 100px rgba(38,34,28,.24); }
.modal-head, .modal-foot { position: sticky; z-index: 2; display: flex; align-items: center; justify-content: space-between; padding: 17px 21px; background: rgba(255,255,255,.94); backdrop-filter: blur(14px); }
.modal-head { top: 0; border-bottom: 1px solid var(--line); }
.modal-head h2 { margin: 3px 0 0; font-family: var(--font-serif); font-size: 22px; font-weight: 500; }
.modal-foot { bottom: 0; justify-content: flex-end; gap: 8px; border-top: 1px solid var(--line); }
.modal-body { display: grid; gap: 17px; padding: 21px; }
.icon-button { width: 31px; height: 31px; color: var(--muted); background: var(--bg-alt); border: 1px solid var(--line); border-radius: 7px; }
.inquiry-question { display: grid; gap: 7px; padding: 16px; background: var(--blue-soft); border: 1px solid rgba(86,173,216,.24); border-radius: 8px; }
.inquiry-question span, .inquiry-question small { color: var(--subtle); font-family: var(--font-mono); font-size: 9px; }
.inquiry-question strong { font-family: var(--font-serif); font-size: 17px; line-height: 1.45; }
.order-document-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 14px; background: var(--pink-soft); border: 1px solid rgba(217,77,136,.18); border-radius: 8px; }
.send-order { flex: 1; display: flex; gap: 8px; min-width: min(420px, 100%); }
.send-order .search { flex: 1; min-width: 160px; background: #fff; }
.conversation-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; }
.thread { display: flex; flex-direction: column; gap: 9px; max-height: 480px; overflow-y: auto; padding: 16px; background: var(--bg-alt); border: 1px solid var(--line); border-radius: 9px; }
.thread-message { max-width: 78%; padding: 10px 12px; background: #fff; border: 1px solid var(--line); border-radius: 10px; white-space: pre-wrap; line-height: 1.5; }
.thread-message.from-customer { align-self: flex-end; color: #fff; background: var(--pink); border-color: var(--pink); }
.thread-message small { display: block; margin-bottom: 4px; color: inherit; opacity: .72; font-family: var(--font-mono); font-size: 8.5px; }
.fact-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.fact-row:last-child { border-bottom: 0; }
.result-grid { display: grid; gap: 12px; }
.search-result-card { position: relative; display: grid; grid-template-columns: 92px 1fr; gap: 16px; padding: 16px; background: #fff; border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow-soft); }
.search-result-card img { width: 92px; height: 112px; object-fit: cover; border-radius: 7px; }
.search-result-card h3 { margin: 5px 0; font-family: var(--font-serif); font-size: 19px; font-weight: 500; }
.search-result-card p, .search-result-card ul { color: var(--muted); font-size: 11px; }
.result-rank { position: absolute; top: 10px; right: 12px; color: var(--blue); font-family: var(--font-mono); font-size: 18px; font-weight: 700; }

.memory-layout { display: grid; grid-template-columns: minmax(0,1.65fr) minmax(280px,.75fr); gap: 16px; align-items: start; }
.memory-teacher textarea { min-height: 150px; font-size: 14px; }
.memory-advanced { margin: 15px 0; padding: 13px; background: var(--bg-alt); border: 1px solid var(--line); border-radius: 8px; }
.memory-advanced summary { margin-bottom: 12px; color: var(--muted); cursor: pointer; font-family: var(--font-mono); font-size: 10px; font-weight: 700; text-transform: uppercase; }
.memory-guide { display: grid; gap: 10px; position: sticky; top: 66px; }
.memory-guide h2 { margin: 0; }
.memory-guide p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.55; }
.memory-guide code { display: block; padding: 10px; color: #315468; background: var(--blue-soft); border: 1px solid rgba(86,173,216,.22); border-radius: 7px; overflow-wrap: anywhere; }
.memory-guide .memory-hint { padding-top: 9px; border-top: 1px solid var(--line); font-family: var(--font-mono); font-size: 9.5px; }
.memory-rule-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
.memory-rule-card { display: grid; gap: 13px; padding: 17px; background: #fff; border: 1px solid var(--line); border-radius: 9px; }
.memory-rule-card.pending { border-color: rgba(154,103,22,.25); box-shadow: inset 3px 0 var(--warning); }
.memory-rule-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.memory-rule-head h3 { margin: 5px 0 0; font-size: 18px; font-weight: 500; }
.memory-rule-copy { color: #3f3c36; font-size: 13px; line-height: 1.6; }
.memory-rule-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.memory-rule-meta span { padding: 4px 7px; color: var(--subtle); background: var(--bg-alt); border-radius: 5px; font-family: var(--font-mono); font-size: 8.5px; }
.memory-empty { grid-column: 1/-1; padding: 24px; }

.login-screen { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 20px; background: radial-gradient(circle at 50% 0%, rgba(217,77,136,.10), transparent 38%), radial-gradient(circle at 10% 90%, rgba(86,173,216,.12), transparent 34%), var(--bg); }
.login-screen.hidden { display: none; }
.login-card { width: min(430px,100%); padding: 34px; background: rgba(255,255,255,.9); border: 1px solid var(--line); border-radius: 13px; box-shadow: 0 28px 90px rgba(49,43,34,.12); backdrop-filter: blur(18px); }
.login-logo { width: 155px; height: 92px; margin: -12px 0 7px; object-fit: cover; object-position: 50% 56%; }
.login-card h1 { margin: 9px 0 8px; font-family: var(--font-serif); font-size: 31px; font-weight: 500; letter-spacing: -.035em; }
.login-card p { margin: 0 0 22px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.login-card form { display: grid; gap: 13px; }
.toast { position: fixed; right: 22px; bottom: 22px; z-index: 120; max-width: 430px; padding: 12px 15px; color: #fff; background: #34322e; border-radius: 8px; box-shadow: var(--shadow); font-family: var(--font-mono); font-size: 10.5px; transform: translateY(120px); transition: .22s; }
.toast.show { transform: translateY(0); }
.toast.error { background: var(--danger); }

.chat-layout { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at 10% 0%, rgba(86,173,216,.13), transparent 36%), radial-gradient(circle at 90% 0%, rgba(217,77,136,.1), transparent 36%), var(--bg); }
.chat-card { width: min(900px, 100%); height: min(820px, calc(100vh - 48px)); display: grid; grid-template-rows: auto 1fr auto; overflow: hidden; background: rgba(255,255,255,.94); border: 1px solid var(--line); border-radius: 13px; box-shadow: var(--shadow); }
.chat-head { padding: 17px 21px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.chat-head h1 { margin: 0; font-family: var(--font-serif); font-size: 20px; font-weight: 500; }
.chat-head p { margin: 4px 0 0; color: var(--muted); font-family: var(--font-mono); font-size: 9.5px; }
.chat-messages { height: 100%; overflow-y: auto; padding: 22px; display: flex; flex-direction: column; gap: 12px; background: #faf9f6; }
.message { max-width: 76%; padding: 11px 13px; border-radius: 11px; line-height: 1.5; white-space: pre-wrap; }
.message.user { align-self: flex-end; color: #fff; background: var(--pink); border-bottom-right-radius: 3px; }
.message.assistant { align-self: flex-start; background: #fff; border: 1px solid var(--line); border-bottom-left-radius: 3px; }
.product-strip { display: flex; gap: 9px; overflow-x: auto; padding: 0 22px 13px; background: #faf9f6; }
.product-chip { min-width: 190px; padding: 10px; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.product-chip strong, .product-chip small { display: block; }
.product-chip small { margin-top: 4px; color: var(--muted); }
.chat-form { padding: 14px; display: flex; gap: 9px; border-top: 1px solid var(--line); }
.chat-form input { flex: 1; padding: 11px 13px; border: 1px solid var(--line-strong); border-radius: 8px; }

@media (max-width: 1050px) {
  .stats { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .topbar-center { display: none; }
  .topbar { grid-template-columns: 1fr 1fr; }
  .memory-layout { grid-template-columns: 1fr; }
  .memory-guide { position: static; }
}
@media (max-width: 820px) {
  .app-shell { grid-template-columns: 1fr; grid-template-rows: 44px auto 1fr; grid-template-areas: "topbar" "sidebar" "main"; }
  .sidebar { position: sticky; top: 44px; z-index: 15; width: 100%; height: auto; padding: 9px 12px; flex-direction: row; align-items: center; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .brand, .nav-label, .sidebar-footer { display: none; }
  .nav { display: flex; gap: 4px; }
  .nav button { width: auto; grid-template-columns: 18px auto; white-space: nowrap; }
  .main { padding: 28px 16px 50px; }
  .page-head { align-items: flex-start; flex-direction: column; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .memory-rule-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { min-height: 95px; padding: 14px; }
  .stat strong { font-size: 28px; }
  .send-order { min-width: 100%; flex-direction: column; }
  .topbar-lockup small { display: none; }
  .chat-layout { padding: 0; }
  .chat-card { height: 100vh; border-radius: 0; border: 0; }
}