:root {
  color-scheme: light;
  --cp-bg: #f7f4ef;
  --cp-bg-elevated: #fcfbf8;
  --cp-surface: #ffffff;
  --cp-surface-soft: #f5f5f5;
  --cp-border: #dedede;
  --cp-border-strong: #919191;
  --cp-text: #242424;
  --cp-text-muted: #5c5c5c;
  --cp-text-soft: #6f6f6f;
  --cp-accent: #b11f4b;
  --cp-accent-hover: #9a1a41;
  --cp-accent-soft: rgba(177, 31, 75, 0.08);
  --cp-accent-fg: #ffffff;
  --cp-success: #16a34a;
  --cp-danger: #dc2626;
  --cp-warning: #f59e0b;
  --cp-link: #0078d4;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.12);
  --cp-overlay: rgba(255, 255, 255, 0.8);
  --cp-panel: rgba(255, 255, 255, 0.86);
  --cp-panel-strong: rgba(255, 255, 255, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.55);
  --cp-highlight: rgba(177, 31, 75, 0.12);
}
html[data-theme="dark"] {
  color-scheme: dark;
  --cp-bg: #3d3b3a;
  --cp-bg-elevated: #343231;
  --cp-surface: #292929;
  --cp-surface-soft: #2e2e2e;
  --cp-border: #474747;
  --cp-border-strong: #5f5f5f;
  --cp-text: #dedede;
  --cp-text-muted: #919191;
  --cp-text-soft: #b0b0b0;
  --cp-accent: #fd8ea1;
  --cp-accent-hover: #fb7b91;
  --cp-accent-soft: rgba(253, 142, 161, 0.14);
  --cp-accent-fg: #1a1a1a;
  --cp-success: #4ade80;
  --cp-danger: #f87171;
  --cp-warning: #fbbf24;
  --cp-link: #4da6ff;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.32);
  --cp-overlay: rgba(41, 41, 41, 0.88);
  --cp-panel: rgba(41, 41, 41, 0.72);
  --cp-panel-strong: rgba(41, 41, 41, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.04);
  --cp-highlight: rgba(253, 142, 161, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background: var(--cp-bg);
  color: var(--cp-text);
  font-family: "Segoe UI", Aptos, Calibri, -apple-system, BlinkMacSystemFont, sans-serif;
}

[hidden] {
  display: none !important;
}

button,
textarea {
  font: inherit;
}

.app-shell {
  display: grid;
  width: min(1180px, 100%);
  height: 100dvh;
  grid-template-rows: auto minmax(0, 1fr);
  margin: 0 auto;
}

.topbar,
.account-actions,
.composer-row,
.brand,
.message {
  display: flex;
  align-items: center;
}

.topbar {
  position: sticky;
  z-index: 10;
  top: 0;
  min-height: 68px;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 24px;
  border-bottom: 1px solid var(--cp-border);
  background: var(--cp-panel-strong);
  backdrop-filter: blur(16px);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

h2 {
  margin-bottom: 10px;
  font-size: clamp(1.8rem, 5vw, 2.65rem);
  letter-spacing: -0.035em;
}

.message-label {
  margin-bottom: 4px;
  color: var(--cp-text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand {
  gap: 10px;
}

.brand-mark,
.welcome-mark {
  display: grid;
  place-items: center;
  background: var(--cp-text);
  color: var(--cp-surface);
  font-weight: 750;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 0.625rem;
}

.brand-kicker {
  display: block;
  margin-bottom: 1px;
  color: var(--cp-text-muted);
  font-size: 0.7rem;
}

.account-actions {
  gap: 8px;
  color: var(--cp-text-muted);
  font-size: 0.8rem;
}

.welcome-card {
  display: grid;
  min-height: 0;
  place-items: center;
  padding: 24px;
}

.welcome-copy {
  width: min(520px, 100%);
  padding: clamp(32px, 7vw, 64px);
  border: 1px solid var(--cp-border);
  border-radius: 16px;
  background: var(--cp-surface);
  box-shadow: 0 0 2px var(--cp-border), 0 1px 2px var(--cp-border);
  text-align: center;
}

.welcome-copy > p {
  margin-bottom: 24px;
  color: var(--cp-text-muted);
  line-height: 1.6;
}

.welcome-mark {
  width: 52px;
  height: 52px;
  margin: 0 auto 24px;
  border-radius: 16px;
  font-size: 1.25rem;
}

.button {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 8px 13px;
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  background: var(--cp-surface);
  color: var(--cp-text);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 650;
  text-decoration: none;
}

.button.primary {
  border-color: var(--cp-text);
  background: var(--cp-text);
  color: var(--cp-surface);
}

.button.primary:hover {
  border-color: var(--cp-text-muted);
  background: var(--cp-text-muted);
}

.button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.chat-panel {
  display: grid;
  min-height: 0;
  grid-template-rows: 1fr auto;
  overflow: hidden;
  background: var(--cp-bg-elevated);
}

.messages {
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 32px 24px 48px;
  scroll-behavior: smooth;
}

.message-list {
  width: min(860px, 100%);
  margin: 0 auto;
}

.message {
  align-items: flex-start;
  gap: 12px;
  max-width: 780px;
  margin-bottom: 28px;
}

.message.user {
  flex-direction: row-reverse;
  margin-left: auto;
}

.avatar {
  display: grid;
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  place-items: center;
  border-radius: 0.625rem;
  background: var(--cp-text);
  color: var(--cp-surface);
  font-size: 0.78rem;
  font-weight: 700;
}

.message.user .avatar {
  border: 1px solid var(--cp-border);
  background: var(--cp-surface-soft);
  color: var(--cp-text);
}

.bubble {
  max-width: calc(100% - 44px);
  padding: 13px 16px;
  border: 1px solid var(--cp-border);
  border-radius: 4px 16px 16px 16px;
  background: var(--cp-surface);
  box-shadow: 0 0 2px var(--cp-border), 0 1px 2px var(--cp-border);
  line-height: 1.6;
  white-space: pre-wrap;
}

.bubble p:last-child {
  margin-bottom: 0;
}

.message.user .bubble {
  border-radius: 16px 4px 16px 16px;
  background: var(--cp-surface-soft);
  box-shadow: none;
}

.consent-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.message.approval .avatar {
  background: var(--cp-warning);
  color: #1a1a1a;
}

.approval-card {
  width: min(620px, calc(100% - 44px));
}

.approval-card.approved {
  border-color: var(--cp-success);
}

.approval-card.rejected {
  border-color: var(--cp-danger);
}

.approval-title {
  margin-bottom: 4px;
  font-weight: 700;
}

.approval-server,
.approval-arguments-label {
  color: var(--cp-text-muted);
  font-size: 0.8rem;
}

.approval-server {
  margin-bottom: 14px;
}

.approval-arguments-label {
  margin-bottom: 6px;
  font-weight: 700;
}

.approval-arguments {
  max-height: 220px;
  overflow: auto;
  margin: 0 0 14px;
  padding: 12px;
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  background: var(--cp-surface-soft);
  color: var(--cp-text);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

.approval-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.composer {
  padding: 16px 24px 20px;
  border-top: 1px solid var(--cp-border);
  background: var(--cp-panel-strong);
  backdrop-filter: blur(16px);
}

.composer-inner {
  width: min(860px, 100%);
  margin: 0 auto;
}

.composer-row {
  align-items: stretch;
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--cp-border-strong);
  border-radius: 16px;
  background: var(--cp-surface);
  box-shadow: 0 0 2px var(--cp-border), 0 1px 2px var(--cp-border);
}

textarea {
  width: 100%;
  min-height: 46px;
  max-height: 180px;
  resize: vertical;
  padding: 12px;
  border: 0;
  outline: none;
  background: var(--cp-surface);
  color: var(--cp-text);
  line-height: 1.45;
}

textarea:focus {
  box-shadow: none;
}

.composer-row:focus-within {
  border-color: var(--cp-text);
  box-shadow: 0 0 0 3px var(--cp-border);
}

.send-button {
  display: inline-flex;
  min-width: 82px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 16px;
  border: 0;
  border-radius: 0.625rem;
  background: var(--cp-text);
  color: var(--cp-surface);
  cursor: pointer;
  font-weight: 700;
}

.send-button:hover {
  background: var(--cp-text-muted);
}

.send-button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.form-status {
  min-height: 18px;
  margin: 6px 4px 0;
  color: var(--cp-text-muted);
  font-size: 0.75rem;
}

.form-status.error {
  color: var(--cp-danger);
}

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

@media (max-width: 760px) {
  .topbar {
    min-height: 62px;
    padding: 8px 12px;
  }

  .brand-kicker,
  .account-actions > span {
    display: none;
  }

  .messages {
    padding: 24px 14px 36px;
  }

  .composer {
    padding: 10px 12px 12px;
  }

  .send-button {
    min-width: 48px;
    padding: 0 12px;
  }

  .send-button span:first-child {
    display: none;
  }

  .message {
    max-width: 92%;
  }
}