/* THD Copy Generator - Activity Feed task pane.
   Dark + purple. Drop into services/excel-addin/src/styles.css. */

:root {
  --header-height: 56px;
  --bg: oklch(0.1344 0 0);
  --bg-soft: oklch(0.16 0 0);
  --card: oklch(0.1867 0 0);
  --card-2: oklch(0.215 0 0);
  --muted: oklch(0.1638 0 0);
  --fg: oklch(0.9219 0 0);
  --fg-dim: oklch(0.7155 0 0);
  --fg-dimmer: oklch(0.55 0 0);
  --border: oklch(0.2727 0 0);
  --border-soft: oklch(0.23 0 0);

  --primary: oklch(0.5745 0.2566 299.3491);
  --primary-fg: #ffffff;
  --primary-soft: oklch(0.32 0.13 299);
  --primary-ghost: oklch(0.25 0.08 299 / 0.35);

  --good: oklch(0.72 0.17 155);
  --good-ghost: oklch(0.3 0.1 155 / 0.25);
  --good-border: oklch(0.4 0.13 155 / 0.5);

  --bad: oklch(0.7 0.21 25);
  --bad-ghost: oklch(0.32 0.13 25 / 0.3);
  --bad-border: oklch(0.4 0.15 25 / 0.5);

  --warn: oklch(0.82 0.16 85);
  --warn-ghost: oklch(0.32 0.1 85 / 0.25);
  --warn-border: oklch(0.45 0.13 85 / 0.5);

  --radius: 8px;
  --radius-lg: 12px;

  color-scheme: dark;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-size: 13px;
  line-height: 1.4;
  color: var(--fg);
  background: var(--bg);
}

* {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
}

button {
  font-family: inherit;
}

/* Shell */

.taskpane {
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100vh;
  min-height: 100vh;
  position: relative;
  overflow: hidden;
}

.header {
  display: flex;
  align-items: center;
  gap: 10px;
  height: var(--header-height);
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.header__brand,
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
}

.brand__logo {
  width: 24px;
  height: 24px;
  border-radius: 5px;
  background: #f58220;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  overflow: hidden;
}

.brand__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand__title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.1;
}

.brand__sub {
  font-size: 11px;
  color: var(--fg-dim);
  margin-top: 2px;
}

/* Feed */

.feed {
  flex: 1;
  padding: 4px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.feed::-webkit-scrollbar {
  width: 6px;
}
.feed::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
.feed::-webkit-scrollbar-track {
  background: transparent;
}

.msg {
  display: flex;
  flex-direction: column;
  gap: 2px;
  animation: msg-in 0.22s ease-out both;
}
.msg--user {
  align-items: flex-end;
}
.msg--app {
  align-items: flex-start;
}

@keyframes msg-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.msg__time {
  font-size: 10px;
  color: var(--fg-dimmer);
  padding: 0 4px;
}

.bubble {
  max-width: 92%;
  padding: 9px 11px;
  border-radius: 12px;
  font-size: 12.5px;
  line-height: 1.45;
  word-wrap: break-word;
}

.bubble--user {
  background: var(--primary);
  color: var(--primary-fg);
  border-bottom-right-radius: 3px;
  font-weight: 500;
}

.bubble--app {
  background: var(--card);
  border: 1px solid var(--border);
  border-bottom-left-radius: 3px;
  max-width: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.bubble--app[data-tone="good"] {
  background: var(--good-ghost);
  border-color: var(--good-border);
}
.bubble--app[data-tone="bad"] {
  background: var(--bad-ghost);
  border-color: var(--bad-border);
}
.bubble--app[data-tone="warn"] {
  background: var(--warn-ghost);
  border-color: var(--warn-border);
}
.bubble--app[data-tone="primary"] {
  background: var(--primary-ghost);
  border-color: oklch(0.4 0.15 299 / 0.4);
}

.bubble__body {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.bubble__text {
  flex: 1;
}

.bubble__sub {
  font-size: 11px;
  color: var(--fg-dim);
}

.bubble__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.bubble__content {
  display: grid;
  gap: 8px;
}

.bubble__spinner {
  width: 12px;
  height: 12px;
  margin-top: 3px;
  border-radius: 50%;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* progress */
.progress {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.progress__track {
  height: 4px;
  background: oklch(0.25 0 0);
  border-radius: 999px;
  overflow: hidden;
}
.progress__bar {
  height: 100%;
  width: 0%;
  background: var(--primary);
  transition: width 0.25s ease;
}
.progress__label {
  font-size: 11px;
  color: var(--fg-dim);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 36px;
  padding: 0 12px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  color: var(--fg);
  transition:
    filter 0.15s,
    background 0.15s,
    border-color 0.15s;
}
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.btn:hover:not(:disabled) {
  filter: brightness(1.08);
}
.btn__icon {
  display: inline-flex;
}

.btn--primary {
  background: var(--primary);
  color: var(--primary-fg);
  border-color: var(--primary);
}
.btn--ghost {
  border-color: var(--border);
  color: var(--fg);
  background: transparent;
}
.btn--ghost:hover:not(:disabled) {
  background: var(--muted);
}
.btn--quiet {
  border-color: transparent;
  color: var(--fg-dim);
  background: transparent;
}
.btn--danger {
  border-color: var(--border);
  color: var(--bad);
  background: transparent;
}

.btn--sm {
  height: 28px;
  padding: 0 10px;
  font-size: 12px;
}
.btn--full {
  width: 100%;
}

/* Composer */

.composer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 10px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.composer__hint {
  font-size: 10px;
  color: var(--fg-dimmer);
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.composer__actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* checkbox */
.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11.5px;
  color: var(--fg-dim);
  cursor: pointer;
  user-select: none;
}
.checkbox input {
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1px solid var(--border);
  background: transparent;
  margin: 0;
  display: grid;
  place-content: center;
  cursor: pointer;
}

.checkbox--row {
  width: 100%;
  padding: 9px 0;
  color: var(--fg);
  font-size: 12px;
}
.checkbox input:checked {
  background: var(--primary);
  border-color: var(--primary);
}
.checkbox input:checked::after {
  content: "";
  width: 6px;
  height: 3px;
  border-left: 1.6px solid #fff;
  border-bottom: 1.6px solid #fff;
  transform: rotate(-45deg) translate(0, -1px);
}

/* link-style utility button */
.linklike {
  background: transparent;
  border: none;
  padding: 0;
  font: inherit;
  font-size: 11px;
  color: var(--fg-dimmer);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.linklike:hover {
  color: var(--fg-dim);
}
.linklike svg {
  display: inline-block;
}

.icon-btn {
  width: 30px;
  height: 30px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--fg-dim);
  cursor: pointer;
}

.icon-btn:hover {
  color: var(--fg);
  background: var(--muted);
}

.icon-btn[aria-expanded="true"] {
  color: var(--fg);
  background: var(--muted);
}

.app-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 8px;
  z-index: 30;
  min-width: 190px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  box-shadow: 0 14px 36px oklch(0 0 0 / 0.55);
}

.app-menu button {
  width: 100%;
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  border: 0;
  border-bottom: 1px solid var(--border-soft);
  background: transparent;
  color: var(--fg);
  font: inherit;
  font-size: 12.5px;
  text-align: left;
  cursor: pointer;
}

.app-menu button:last-child {
  border-bottom: 0;
}

.app-menu button:hover {
  background: var(--bg-soft);
}

.app-menu svg {
  color: var(--fg-dim);
  flex-shrink: 0;
}

.settings-backdrop {
  position: fixed;
  inset: var(--header-height) 0 0;
  z-index: 20;
  background: oklch(0 0 0 / 0.48);
  opacity: 0;
  transition: opacity 0.16s ease;
}

.settings-backdrop.is-open {
  opacity: 1;
}

.settings-sheet {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 21;
  display: grid;
  gap: 12px;
  padding: 14px;
  border-top: 1px solid var(--border);
  border-radius: 0;
  background: var(--bg);
  box-shadow: 0 -18px 50px oklch(0 0 0 / 0.55);
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform 0.2s ease;
}

.settings-sheet.is-open {
  transform: translateY(0);
}

.settings-sheet__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.settings-sheet__header h2 {
  margin: 0;
  font-size: 17px;
  line-height: 1.15;
}

.settings-sheet__header p {
  margin: 4px 0 0;
  color: var(--fg-dim);
  font-size: 11.5px;
}

.settings-sheet__body {
  display: grid;
  gap: 16px;
}

.settings-group {
  display: grid;
  gap: 9px;
}

.settings-group__title {
  color: var(--fg-dimmer);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--fg);
  font-size: 12px;
}

.toggle-row small {
  display: block;
  margin-top: 2px;
  color: var(--fg-dimmer);
  font-size: 10.5px;
  line-height: 1.35;
}

.toggle-row input {
  appearance: none;
  width: 34px;
  height: 20px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--muted);
  flex-shrink: 0;
  cursor: pointer;
  position: relative;
  transition:
    background 0.16s ease,
    border-color 0.16s ease;
}

.toggle-row input::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--fg-dim);
  transition:
    transform 0.16s ease,
    background 0.16s ease;
}

.toggle-row input:checked {
  border-color: var(--primary);
  background: var(--primary);
}

.toggle-row input:checked::after {
  transform: translateX(14px);
  background: #fff;
}

.settings-field {
  display: grid;
  gap: 5px;
}

.settings-field > span {
  color: var(--fg-dimmer);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.settings-sheet__status {
  min-height: 16px;
  color: var(--good);
  font-size: 11px;
}

.settings-sheet__actions {
  display: grid;
  gap: 7px;
}

/* Feed-native forms */

.feed-panel {
  display: grid;
  gap: 10px;
  padding-top: 2px;
}

.feed-panel__grid {
  display: grid;
  gap: 7px;
}

.feed-field {
  display: grid;
  gap: 4px;
}

.feed-field label,
.feed-panel__label {
  color: var(--fg-dimmer);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.feed-input,
.feed-textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 9px;
  color: var(--fg);
  background: var(--bg);
  font: inherit;
  font-size: 12px;
}

.feed-input::placeholder,
.feed-textarea::placeholder {
  color: oklch(0.62 0 0 / 0.48);
  opacity: 1;
}

.feed-textarea {
  min-height: 54px;
  resize: vertical;
}

.feed-input:focus,
.feed-textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.feed-summary {
  display: grid;
  gap: 5px;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 8px;
  background: oklch(0.15 0 0);
}

.feed-summary__row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 8px;
  font-size: 11.5px;
}

.feed-summary__row dt {
  margin: 0;
  color: var(--fg-dimmer);
  font-weight: 700;
}

.feed-summary__row dd {
  margin: 0;
  color: var(--fg);
  word-break: break-word;
}

.feed-check-list {
  display: grid;
  gap: 6px;
}

.feed-check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--fg-dim);
  font-size: 11.5px;
}

.feed-check input {
  margin-top: 1px;
}

.feed-panel__checkbox {
  align-items: flex-start;
}

.feed-note,
.feed-error {
  border-radius: 6px;
  padding: 7px 8px;
  font-size: 11.5px;
  line-height: 1.35;
}

.feed-note {
  color: var(--fg-dim);
  background: oklch(0.16 0 0);
  border: 1px solid var(--border-soft);
}

.feed-note--warn {
  color: oklch(0.87 0.1 65);
  background: var(--warn-ghost);
  border-color: var(--warn-border);
}

.feed-error {
  color: var(--bad);
  background: var(--bad-ghost);
  border: 1px solid var(--bad-border);
  font-weight: 700;
}