:root {
  color-scheme: light;
  --bg: #f5f1e8;
  --panel: #fffaf1;
  --ink: #18201c;
  --muted: #6d756f;
  --accent: #128c7e;
  --accent-strong: #075e54;
  --blue: #2563eb;
  --purple: #7c3aed;
  --soon: #8a6f2a;
  --line: #ded4c2;
  --incoming: #ffffff;
  --outgoing: #dcf8c6;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #e0f2ec, transparent 30%), var(--bg);
  color: var(--ink);
}

button, input, textarea { font: inherit; }

.app-shell {
  display: grid;
  grid-template-columns: minmax(320px, 380px) minmax(0, 1fr);
  width: 100%;
  min-height: 100vh;
  overflow-x: hidden;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(420px, 100%);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 250, 241, 0.94);
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.12);
  display: grid;
  gap: 16px;
  padding: 28px;
}

.login-card label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 700;
}

.sidebar {
  border-right: 1px solid var(--line);
  background: rgba(255, 250, 241, 0.88);
  backdrop-filter: blur(12px);
  padding: 24px;
  min-width: 0;
  overflow-y: auto;
}

.brand, .panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1, h2 { margin: 0; }

.muted, .form-note { color: var(--muted); }

.brand-subtitle {
  max-width: 260px;
  margin: 6px 0 0;
  font-size: 13px;
}

.status-pill {
  border-radius: 999px;
  background: #efe6d2;
  color: var(--accent-strong);
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 700;
}

.status-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.secondary-button {
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 24px 0;
}

.dashboard-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.dashboard-summary div {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 253, 248, 0.78);
  padding: 10px;
}

.dashboard-summary strong,
.dashboard-summary span {
  display: block;
}

.dashboard-summary span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.channel-rail {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 18px;
}

.channel-card {
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 14px;
  background: #fffdf8;
  padding: 10px;
}

.channel-card.demo { border-left-color: var(--blue); }
.channel-card.soon { border-left-color: var(--soon); opacity: 0.82; }

.channel-card strong,
.channel-card span,
.channel-card small { display: block; }

.channel-card span {
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 800;
}

.channel-card small { color: var(--muted); }

.tab, button {
  border: 0;
  border-radius: 12px;
  background: #eadfcb;
  color: var(--ink);
  cursor: pointer;
  font-weight: 800;
  padding: 12px 14px;
}

.tab.active, button[type="submit"] {
  background: var(--accent);
  color: white;
}

button:disabled, textarea:disabled { opacity: 0.55; cursor: not-allowed; }

.conversation-list {
  display: grid;
  gap: 10px;
}

.institutional-disclosure {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.conversation-card {
  width: 100%;
  min-width: 0;
  border: 1px solid transparent;
  border-radius: 16px;
  background: #fffdf8;
  padding: 14px;
  text-align: left;
  overflow: hidden;
}

.conversation-card.active { border-color: var(--accent); }
.conversation-card.sample.active { border-color: var(--blue); }
.conversation-card.coming-soon { opacity: 0.82; }
.conversation-card.coming-soon.active { border-color: var(--soon); }

.conversation-card strong, .conversation-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-width: 0;
}

.conversation-card strong span:first-child,
.conversation-meta small:first-child {
  min-width: 0;
  overflow-wrap: anywhere;
}

.attention-title {
  display: block;
  margin-top: 8px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.conversation-preview {
  margin: 8px 0;
  color: var(--muted);
  display: -webkit-box;
  line-height: 1.35;
  overflow: hidden;
  overflow-wrap: anywhere;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.badge {
  border-radius: 999px;
  background: rgba(18, 140, 126, 0.12);
  color: var(--accent-strong);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.02em;
  padding: 4px 8px;
  text-transform: uppercase;
}

.badge.demo { background: rgba(37, 99, 235, 0.12); color: var(--blue); }
.badge.soon { background: rgba(138, 111, 42, 0.14); color: var(--soon); }
.badge.subtle { background: #efe6d2; color: var(--muted); }

.unread {
  min-width: 22px;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  display: inline-grid;
  font-size: 12px;
  place-items: center;
  padding: 3px 7px;
}

.panel {
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  padding: 28px;
  min-width: 0;
}

.hidden { display: none; }

.messages {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  padding: 24px 0;
}

.empty-state {
  align-items: center;
  color: var(--muted);
  justify-content: center;
}

.message {
  max-width: min(640px, 82%);
  border-radius: 18px;
  padding: 12px 14px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
}

.message.incoming { align-self: flex-start; background: var(--incoming); }
.message.outgoing { align-self: flex-end; background: var(--outgoing); }

.message small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.message div { white-space: pre-wrap; }

.reply-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: end;
}

textarea, input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fffdf8;
  color: var(--ink);
  padding: 12px 14px;
}

.settings-form {
  display: grid;
  gap: 16px;
  max-width: 760px;
  padding-top: 24px;
}

.settings-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 700;
}

@media (max-width: 860px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
  .panel { min-height: 70vh; padding: 20px; }
  .reply-form { grid-template-columns: 1fr; }
}