:root {
  color-scheme: light;
  --bg: #f4f7f9;
  --ink: #16201c;
  --muted: #5b6670;
  --line: #d6dee4;
  --surface: #ffffff;
  --surface-soft: #eef5f2;
  --primary: #246b5f;
  --primary-ink: #ffffff;
  --secondary: #304a78;
  --accent: #b65c38;
  --warning: #f0c84a;
  --focus: #c97b32;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

body.app-body {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  min-height: 100vh;
}

a {
  color: inherit;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px clamp(20px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  text-decoration: none;
}

nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

.hero,
.auth-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.7fr);
  gap: clamp(24px, 5vw, 64px);
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(44px, 8vw, 92px) 0;
}

.hero-copy,
.auth-panel,
.plain-note,
.doc-page,
.trust-strip {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(3rem, 7vw, 5rem);
  line-height: 1;
}

h2 {
  margin: 28px 0 8px;
  font-size: 1.25rem;
}

.lede {
  max-width: 620px;
  color: var(--muted);
  font-size: 1.15rem;
}

.actions,
.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 6px;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.button.primary {
  background: var(--primary);
  color: var(--primary-ink);
}

.button.secondary {
  background: var(--secondary);
  color: #ffffff;
}

.button.quiet {
  border-color: var(--line);
  background: transparent;
  color: var(--ink);
}

.button.full {
  width: 100%;
}

.button.compact {
  min-height: 36px;
  padding: 7px 12px;
}

.auth-panel,
.plain-note,
.trust-strip,
.doc-page,
.rail-section,
.app-section {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 16px 50px rgb(31 39 35 / 7%);
}

.auth-panel {
  padding: clamp(24px, 4vw, 40px);
}

.plain-note,
.trust-strip {
  align-self: start;
  padding: clamp(22px, 3vw, 32px);
}

.form-stack {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

label {
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--ink);
  font: inherit;
}

textarea,
select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--ink);
  background: #ffffff;
  font: inherit;
}

input:focus,
textarea:focus,
select:focus,
.button:focus,
a:focus {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.status-text {
  min-height: 28px;
  color: var(--muted);
}

.doc-page {
  width: min(840px, calc(100% - 40px));
  margin: 40px auto;
  padding: clamp(24px, 4vw, 44px);
}

.doc-page h1 {
  font-size: 3.5rem;
}

.callout {
  border-left: 4px solid var(--primary);
  padding: 14px 16px;
  background: var(--surface-soft);
  font-weight: 700;
}

.public-hero {
  align-items: start;
}

.product-preview {
  display: grid;
  gap: 18px;
}

.mini-window {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbfc;
}

.mini-message {
  max-width: 92%;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
}

.mini-message.user {
  justify-self: end;
  background: #dfe9ff;
}

.mini-message.assistant {
  background: #e6f3ee;
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: 28px;
  height: 100vh;
  padding: 22px;
  border-right: 1px solid var(--line);
  background: #ffffff;
}

.sidebar-brand {
  line-height: 1.2;
}

.side-nav {
  display: grid;
  align-items: stretch;
  gap: 6px;
}

.side-nav a {
  padding: 9px 10px;
  border-radius: 6px;
  color: var(--muted);
  text-decoration: none;
}

.side-nav a.active,
.side-nav a:hover {
  background: var(--surface-soft);
  color: var(--ink);
}

.sidebar-account {
  margin-top: auto;
}

.sidebar-account p {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.app-main {
  min-width: 0;
  padding: clamp(18px, 3vw, 34px);
}

.app-section {
  display: none;
  min-height: calc(100vh - 68px);
  padding: clamp(20px, 3vw, 34px);
}

.app-section.active {
  display: block;
}

.chat-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
  gap: clamp(18px, 3vw, 28px);
}

.chat-pane {
  min-width: 0;
}

.chat-pane h1,
.app-section h1 {
  font-size: clamp(2.5rem, 5vw, 4.25rem);
}

.chat-messages {
  display: grid;
  gap: 12px;
  min-height: 220px;
  margin: 28px 0 18px;
}

.message {
  max-width: min(680px, 92%);
  padding: 12px 14px;
  border-radius: 8px;
}

.message p {
  margin: 0;
}

.message.assistant {
  background: var(--surface-soft);
}

.message.user {
  justify-self: end;
  background: #dfe9ff;
}

.starter-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0 18px;
}

.prompt-chip {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  background: #ffffff;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}

.prompt-chip:hover {
  border-color: var(--primary);
}

.chat-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: end;
}

.context-rail {
  display: grid;
  align-content: start;
  gap: 14px;
}

.rail-section {
  padding: 18px;
}

.rail-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 10px;
}

.rail-section h2 {
  margin-top: 0;
}

.microcopy {
  color: var(--muted);
  font-size: 0.92rem;
}

.history-list,
.updates-list,
.connector-list,
.settings-list {
  display: grid;
  gap: 10px;
}

.history-item {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  background: #ffffff;
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.history-item.active {
  border-color: var(--primary);
  background: var(--surface-soft);
  font-weight: 700;
}

.map-active {
  display: inline-flex;
  margin: 0 0 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #fff5d1;
  color: #5d4615;
  font-weight: 700;
}

.state-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.state-grid span,
.connector-list article,
.settings-list article,
.update-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  background: #f8fbfc;
}

.connector-list article {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.connector-card p {
  margin: 4px 0 0;
  color: var(--muted);
}

.connector-list span {
  color: var(--muted);
}

.support-form {
  display: grid;
  gap: 12px;
  max-width: 640px;
  margin-top: 22px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 760px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .auth-layout {
    grid-template-columns: 1fr;
  }

  body.app-body {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .chat-layout,
  .chat-form {
    grid-template-columns: 1fr;
  }

  .doc-page h1 {
    font-size: 2.5rem;
  }
}