@font-face {
  font-family: "Selecta";
  src: url("/fonts/selecta/Selecta-Light.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: block;
}

@font-face {
  font-family: "Selecta";
  src: url("/fonts/selecta/Selecta-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: block;
}

@font-face {
  font-family: "Selecta";
  src: url("/fonts/selecta/Selecta-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: block;
}

@font-face {
  font-family: "Selecta";
  src: url("/fonts/selecta/Selecta-Bold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: block;
}

@font-face {
  font-family: "Material Symbols Outlined";
  src: url("/fonts/material-symbols/MaterialSymbolsOutlined.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: block;
}

.material-symbols-outlined {
  font-family: "Material Symbols Outlined";
  font-weight: normal;
  font-style: normal;
  font-size: 16px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: "liga";
  font-feature-settings: "liga";
  -webkit-font-smoothing: antialiased;
  flex-shrink: 0;
  user-select: none;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-size: inherit;
}

/*
 * Hebbia semantic tokens, RGB triples per hebbia.ai design system.
 * Stored as "r, g, b" so they compose with opacity:
 *   color: rgb(var(--content-primary));
 *   color: rgba(var(--content-primary), 0.6);
 */

:root {
  /* Backgrounds */
  --background-primary:   251, 251, 251;
  --background-secondary: 245, 245, 245;  /* Figma #f5f5f5 (shipped colors.css had #efefef, stale) */
  --background-tertiary:  229, 229, 229;
  --background-emphasis:  255, 255, 255;
  --background-cobalt:    238, 242, 255;
  --background-negative:  255, 233, 230;

  /* Content (text) */
  --content-primary:   38, 38, 38;
  --content-secondary: 82, 82, 82;
  --content-tertiary:  115, 115, 115;
  --content-disabled:  186, 186, 186;
  --content-onColor:   255, 255, 255;
  --content-cobalt:    70, 91, 255;
  --content-negative:  220, 57, 34;

  /* Headers, in Figma but not in shipped colors.css */
  --header-primary:   23, 23, 23;   /* #171717 */
  --header-secondary: 82, 82, 82;   /* #525252 */

  /* Icons */
  --icon-primary:   115, 115, 115;  /* Figma #737373 (shipped had #525252, stale) */
  --icon-secondary: 134, 134, 134;  /* Figma #868686 (shipped had #737373, stale) */
  --icon-tertiary:  163, 163, 163;
  --icon-disabled:  186, 186, 186;
  --icon-cobalt:    70, 91, 255;
  --icon-on-color:  255, 255, 255;
  --icon-inverse:   255, 255, 255;

  /* Borders */
  --border-default: 229, 229, 229;
  --border-weak:    234, 234, 234;  /* Figma "Border/Secondary" (#eaeaea) */
  --border-inverse: 82, 82, 82;  /* Figma #525252 (shipped had #404040, stale) */
  --border-focus:   130, 155, 240;

  /* Overlay base, composes with ~0.055 for Figma's Background/Secondary Overlay */
  --overlay-base:   0, 0, 0;

  /* Spacing (from Figma Spacing/* tokens) */
  --spacing-px:  1px;
  --spacing-1:   4px;
  --spacing-1-5: 6px;
  --spacing-2:   8px;
  --spacing-2-5: 10px;
  --spacing-3:   12px;
  --spacing-4:   16px;

  /* Type scale */
  --text-sm:   14px;
  --text-base: 16px;
  --text-2xl:  24px;
  --leading-5: 20px;
  --leading-6: 24px;
  --leading-8: 32px;

  /* Radius */
  --radius-lg: 8px;

  /* Component aliases (solid colors for the common case) */
  --bg: rgb(var(--background-primary));
  --fg: rgb(var(--content-primary));
  --muted: rgb(var(--content-tertiary));
  --muted-strong: rgb(var(--content-secondary));
  --border: rgb(var(--border-default));
  --accent: rgb(var(--content-cobalt));
  --focus-ring: rgba(var(--border-focus), 0.6);
  --user-bg: rgba(var(--overlay-base), 0.05);
  --user-fg: rgb(var(--content-primary));
  --tool-bg: rgb(var(--background-secondary));
  --tool-border: rgb(var(--border-weak));
  --error-bg: rgb(var(--background-negative));
  --error-border: rgba(var(--content-negative), 0.2);
  --input-bg: rgb(var(--background-emphasis));
  --debug-bg: #171717;
  --debug-fg: rgba(255, 255, 255, 0.75);
  --debug-info: #a5b4fc;
  --debug-success: #86efac;
  --debug-warn: #fde68a;
  --debug-error: #fca5a5;
  --shimmer-dim: #d1d5db;

  --prompt-shadow:
    0 12px 22px rgba(0, 0, 0, 0.04),
    0 7px 12px rgba(0, 0, 0, 0.03),
    0 3px 5px rgba(0, 0, 0, 0.02);
  --menu-shadow:
    0 15px 29px rgba(0, 0, 0, 0.05),
    0 5px 6.5px rgba(0, 0, 0, 0.03),
    0 2px 2px rgba(0, 0, 0, 0.02);
}

@media (prefers-color-scheme: dark) {
  :root {
    --background-primary:   23, 23, 23;
    --background-secondary: 32, 32, 32;
    --background-tertiary:  0, 0, 0;
    --background-emphasis:  32, 32, 32;
    --background-cobalt:    35, 41, 83;
    --background-negative:  62, 8, 0;

    --content-primary:   245, 245, 245;
    --content-secondary: 202, 202, 202;
    --content-tertiary:  134, 134, 134;
    --content-disabled:  82, 82, 82;
    --content-cobalt:    88, 110, 251;

    --icon-primary:   212, 212, 212;
    --icon-secondary: 163, 163, 163;
    --icon-tertiary:  100, 100, 100;
    --icon-disabled:  82, 82, 82;
    --icon-cobalt:    88, 110, 251;

    --border-default: 50, 50, 50;
    --border-weak:    38, 38, 38;
    --border-inverse: 229, 229, 229;

    --header-primary: 245, 245, 245;
    --overlay-base:   255, 255, 255;

    --debug-bg: #0a0a0a;
    --shimmer-dim: rgba(255, 255, 255, 0.65);

    --prompt-shadow:
      0 12px 22px rgba(0, 0, 0, 0.3),
      0 7px 12px rgba(0, 0, 0, 0.22),
      0 3px 5px rgba(0, 0, 0, 0.15);
    --menu-shadow:
      0 15px 29px rgba(0, 0, 0, 0.35),
      0 5px 6.5px rgba(0, 0, 0, 0.22),
      0 2px 2px rgba(0, 0, 0, 0.15);
  }
}

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: "Selecta", "Inter", "Helvetica Neue", "Arial", sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern", "liga", "calt";
  font-variant-ligatures: common-ligatures;
  font-variant-numeric: lining-nums proportional-nums;
  letter-spacing: -0.005em;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: relative;
}

/* Top overlay — floats over the message list with a gradient fade */

#top-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to bottom, var(--bg) 40%, transparent);
  pointer-events: none;
  z-index: 10;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 6px 40px 0 12px;
}

body.blurred #new-chat-btn,
body.blurred #settings-btn {
  opacity: 0;
  pointer-events: none;
}

#new-chat-btn {
  display: none;
  pointer-events: all;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.3s, opacity 0.2s, background 0.2s;
  position: relative;
}

#new-chat-btn:hover {
  color: var(--fg);
  background: var(--user-bg);
}

#new-chat-btn::after {
  content: "New chat";
  position: absolute;
  top: 50%;
  right: calc(100% + 8px);
  transform: translateY(-50%);
  background: rgb(var(--content-primary));
  color: rgb(var(--background-emphasis));
  font-size: 11px;
  font-weight: 400;
  white-space: nowrap;
  padding: 8px 12px;
  border-radius: 6px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
  display: flex;
  align-items: center;
  z-index: 20;
}

#new-chat-btn:hover::after {
  opacity: 1;
}

/* Welcome state */

.welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  text-align: center;
}

.welcome-logo {
  width: 56px;
  height: 56px;
  margin-bottom: 24px;
  user-select: none;
  pointer-events: none;
}

.welcome-label {
  color: rgb(var(--content-tertiary));
  font-size: 16px;
  font-weight: 500;
  line-height: 24px;
  letter-spacing: -0.08px;
  margin-bottom: 8px;
  padding: 12px 0;
}

.welcome-cards {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.agent-card {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: 4px;
  background: rgb(var(--background-secondary));
  color: rgb(var(--content-primary));
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.agent-card:hover {
  background: rgb(var(--border-default));
}

.agent-card:active {
  transform: scale(0.985);
}

/* Messages area */

#messages {
  flex: 1;
  overflow-y: auto;
  padding: 64px 20px 48px 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.scroll-to-bottom {
  position: sticky;
  bottom: 0;
  align-self: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgb(var(--border-default));
  border-radius: 50%;
  background: rgb(var(--background-emphasis));
  color: rgb(var(--content-primary));
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  opacity: 0.75;
  transition: opacity 0.2s;
  animation: fadeIn 0.2s ease-out;
  flex-shrink: 0;
}

.scroll-to-bottom:hover {
  opacity: 1;
}

@keyframes messageIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* User message, right-aligned bubble, subtle tinted background */

.message {
  word-wrap: break-word;
  animation: fadeIn 0.3s ease-out;
}

.message-user {
  align-self: center;
  width: calc(100% - 24px);
  margin: 16px 12px;
  padding: 12px 16px;
  border-radius: 8px;
  background: rgba(var(--overlay-base), 0.05);
  color: rgb(var(--content-primary));
  font-size: 15px;
  line-height: 1.625;
  white-space: pre-wrap;
}

/* Assistant message, markdown output */

.message-assistant {
  align-self: stretch;
  color: rgb(var(--content-secondary));
  line-height: 1.625;
  max-width: 100%;
  padding: 0 4px;
  font-size: 15px;
}

/* Clean boundaries, no leading/trailing margin on the whole block */
.message-assistant > *:first-child {
  margin-top: 0;
}
.message-assistant > *:last-child {
  margin-bottom: 0;
}

.message-assistant p {
  margin: 0 0 12px;
}

/* Headings, more space above (separator) than below (attach to following) */
.message-assistant h1,
.message-assistant h2,
.message-assistant h3,
.message-assistant h4,
.message-assistant h5,
.message-assistant h6 {
  color: rgb(var(--header-primary));
  font-weight: 500;
  margin: 18px 0 6px;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.message-assistant h1 {
  font-size: 22px;
  letter-spacing: -0.03em;
}
.message-assistant h2 { font-size: 18px; }
.message-assistant h3 { font-size: 16px; }
.message-assistant h4,
.message-assistant h5,
.message-assistant h6 {
  font-size: 15px;
  font-weight: 600;
}

/* Lists, tighter rhythm, hanging indent, tabular numerics on ordered */
.message-assistant ul,
.message-assistant ol {
  padding-left: 22px;
  margin: 0 0 10px;
}

.message-assistant li {
  margin-bottom: 4px;
  padding-left: 2px;
}

.message-assistant li:last-child {
  margin-bottom: 0;
}

/* Paragraphs inside a list item shouldn't double-space */
.message-assistant li > p {
  margin: 0;
}
.message-assistant li > p + p {
  margin-top: 6px;
}

/* Nested lists, tight to parent, slightly less indent */
.message-assistant li > ul,
.message-assistant li > ol {
  margin: 4px 0 0;
  padding-left: 20px;
}

.message-assistant ul li::marker {
  color: rgb(var(--content-tertiary));
}

.message-assistant ol li::marker {
  color: rgb(var(--content-tertiary));
  font-variant-numeric: lining-nums tabular-nums;
}

/* GFM task list items */
.message-assistant li:has(> input[type="checkbox"]) {
  list-style: none;
  padding-left: 0;
  margin-left: -22px;
}

.message-assistant input[type="checkbox"] {
  margin-right: 8px;
  vertical-align: -2px;
  accent-color: rgb(var(--content-cobalt));
}

.message-assistant code {
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 13px;
  color: rgb(var(--content-cobalt));
  background: rgba(var(--content-cobalt), 0.08);
  padding: 1px 5px;
  border-radius: 4px;
}

.message-assistant pre {
  background: rgba(var(--overlay-base), 0.05);
  border: 1px solid rgb(var(--border-weak));
  border-radius: 6px;
  padding: 10px 12px;
  overflow-x: auto;
  margin-bottom: 8px;
}

.message-assistant pre code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: 13px;
}

.message-assistant a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: opacity 0.15s;
}

.message-assistant a:hover {
  opacity: 0.7;
}

.message-assistant strong {
  color: rgb(var(--content-primary));
  font-weight: 500;
}

.message-assistant blockquote {
  margin: 12px 0;
  padding: 2px 0 2px 14px;
  border-left: 3px solid rgb(var(--content-cobalt));
  color: rgb(var(--content-secondary));
  font-style: italic;
}

.message-assistant blockquote p:last-child {
  margin-bottom: 0;
}

.message-assistant kbd {
  display: inline-block;
  padding: 1px 6px;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 12px;
  line-height: 1.4;
  color: rgb(var(--content-primary));
  background: rgb(var(--background-emphasis));
  border: 1px solid rgb(var(--border-default));
  border-radius: 4px;
  box-shadow: 0 1px 0 rgb(var(--border-default));
}

.message-assistant mark {
  background: rgba(var(--content-cobalt), 0.15);
  color: rgb(var(--content-primary));
  padding: 0 2px;
  border-radius: 2px;
}

.message-assistant hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 12px 0;
}

.message-assistant table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: 12px;
  font-size: 13px;
}

.message-assistant th {
  text-align: left;
  font-weight: 500;
  padding: 6px 12px 6px 0;
  border-bottom: 1px solid var(--border);
  color: rgb(var(--header-primary));
  white-space: nowrap;
}

.message-assistant td {
  padding: 6px 12px 6px 0;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.message-assistant tr:last-child td {
  border-bottom: none;
}

/* Tool badge, collapsible list of completed tool calls */

.message-tool {
  align-self: stretch;
  background: transparent;
  border: none;
  padding: 0;
}

.message-tool summary {
  cursor: pointer;
  color: rgb(var(--header-primary));
  user-select: none;
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  padding: 6px 0;
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
}

.message-tool summary::-webkit-details-marker {
  display: none;
}

.tool-badge-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: rgb(var(--content-tertiary));
  transition: transform 0.3s;
}

details[open] .tool-badge-icon {
  transform: rotate(90deg);
}

.tool-badge-count {
  font-size: 14px;
  color: rgb(var(--header-primary));
}

.tool-badge-number {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

@keyframes countPop {
  0% {
    transform: scale(1);
  }
  40% {
    transform: scale(1.3);
  }
  100% {
    transform: scale(1);
  }
}

.tool-count-pop {
  display: inline-block;
  animation: countPop 0.3s ease-out;
}

/* Smooth expand/collapse */
.tool-badge-content-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}

details[open] .tool-badge-content-wrap {
  grid-template-rows: 1fr;
}

.tool-badge-content {
  overflow: hidden;
}

.tool-log-entry {
  margin-bottom: 6px;
  padding: 6px 0 6px 24px;
  font-size: 14px;
  color: rgb(var(--content-secondary));
  line-height: 20px;
}

.tool-log-entry:last-child {
  margin-bottom: 0;
}

.tool-log-label {
  font-weight: 500;
  color: rgb(var(--header-primary));
  margin-bottom: 4px;
}

.tool-log-error {
  color: rgb(var(--content-negative));
}

.message-tool pre {
  margin-top: 6px;
  padding: 6px 8px;
  background: rgba(var(--overlay-base), 0.05);
  border-radius: 4px;
  overflow-x: auto;
  font-size: 11px;
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  white-space: pre-wrap;
}

.message-error {
  align-self: stretch;
  padding: 10px 12px;
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  border-radius: 8px;
  color: rgb(var(--content-negative));
  font-size: 13px;
  line-height: 20px;
}

.message-status {
  align-self: center;
  color: var(--muted);
  font-size: 12px;
  font-style: italic;
  padding: 4px;
}

/* Activity indicator, Hebbia loader + label */

.activity {
  align-self: stretch;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
}

.activity-loader {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: rgb(var(--content-secondary));
}

.activity-loader svg {
  width: 14px;
  height: 14px;
}

.activity-text {
  font-size: 14px;
  line-height: 20px;
  color: rgb(var(--content-secondary));
}

/* Input area, Hebbia rounded prompt box */

#input-form {
  padding: 0 10px 20px 10px;
  flex-shrink: 0;
  position: relative;
  margin-top: -24px;
  z-index: 2;
}

.prompt-box {
  position: relative;
  background: rgb(var(--background-emphasis));
  border: 1px solid rgb(var(--border-default));
  border-radius: 24px;
  padding: 12px;
  box-shadow: var(--prompt-shadow);
  backdrop-filter: blur(37.5px);
  -webkit-backdrop-filter: blur(37.5px);
  transition: border-color 0.15s;
}

#input {
  width: 100%;
  padding: 4px 4px 8px;
  border: none;
  background: transparent;
  color: rgb(var(--content-primary));
  font-family: inherit;
  font-size: 16px;
  line-height: 26px;
  resize: none;
  max-height: 200px;
  outline: none;
  display: block;
}

#input::placeholder {
  color: rgb(var(--content-tertiary));
}

.prompt-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  position: relative;
}

#files-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border: 1px solid rgb(var(--border-default));
  border-radius: 999px;
  background: transparent;
  color: rgb(var(--content-primary));
  font-family: inherit;
  font-size: 14px;
  font-weight: 400;
  line-height: 20px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

#files-btn:hover {
  background: rgba(var(--overlay-base), 0.05);
}

#files-btn[aria-expanded="true"] {
  background: rgba(var(--overlay-base), 0.05);
  border-color: transparent;
}

#files-btn .material-symbols-outlined {
  font-size: 18px;
  margin-left: -2px;
}

#send-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  padding: 10px;
  border: 1px solid #3C4DD9;
  border-radius: 100px;
  color: #ffffff;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.2s, transform 0.15s, color 0.2s, box-shadow 0.2s;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.00) 0%, rgba(0, 0, 0, 0.05) 100%), var(--accent, #465BFF);
  box-shadow: 0 2px 4px -1px rgba(0, 0, 0, 0.25), 0 4px 6px -2px rgba(0, 0, 0, 0.06), 0 2px 0 0 rgba(255, 255, 255, 0.60) inset;
}

#send-btn:hover:not(:disabled) {
  background: rgba(var(--content-cobalt), 0.85);
}

#send-btn:active:not(:disabled) {
  transform: scale(0.94);
}

#send-btn:disabled {
  cursor: default;
  opacity: 0.3;
}

@media (prefers-color-scheme: dark) {
  #send-btn {
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.2),
      0 2px 5px rgba(0, 0, 0, 0.4),
      0 1px 2px rgba(0, 0, 0, 0.3);
  }
}

/* Files & Sources menu (not-yet-implemented placeholder) */

.files-menu {
  position: absolute;
  left: 0;
  right: 0;
  bottom: calc(100% + 3px);
  max-height: 329px;
  background: rgb(var(--background-emphasis));
  border: 1px solid rgb(var(--border-default));
  border-radius: 8px;
  box-shadow: var(--menu-shadow);
  overflow: hidden;
  z-index: 20;
  animation: fadeIn 0.15s ease-out;
  display: flex;
  flex-direction: column;
}

.files-menu-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 6px;
}

.files-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 6px 10px;
  border: none;
  border-radius: 1px;
  background: transparent;
  color: rgb(var(--content-primary));
  font-family: inherit;
  font-size: 14px;
  line-height: 20px;
  font-weight: 400;
  text-align: left;
  cursor: default;
}

.files-menu-item .material-symbols-outlined {
  color: rgb(var(--content-secondary));
}

.files-menu-item-label {
  flex: 1 1 0;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.files-menu-switch {
  position: relative;
  width: 36px;
  height: 18px;
  border-radius: 999px;
  background: rgba(var(--overlay-base), 0.05);
  flex-shrink: 0;
  transition: background 0.2s;
}

.files-menu-switch.on {
  background: rgb(var(--content-cobalt));
}

.files-menu-switch-handle {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: #ffffff;
  transition: left 0.2s;
}

.files-menu-switch.on .files-menu-switch-handle {
  left: 20px;
}

.files-menu-footer {
  padding: 4px;
  background: rgb(var(--background-emphasis));
  border-top: 1px solid rgb(var(--border-weak));
}

.files-menu-footer-btn {
  padding: 6px 14px;
  border: none;
  background: transparent;
  color: rgb(var(--content-cobalt));
  font-family: inherit;
  font-size: 14px;
  font-weight: 400;
  line-height: 20px;
  cursor: default;
  letter-spacing: -0.07px;
}

.files-menu-unavailable {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 2;
}

@media (prefers-color-scheme: dark) {
  .files-menu-unavailable {
    background: rgba(23, 23, 23, 0.85);
  }
}

.files-menu-unavailable-text {
  font-size: 16px;
  line-height: 20px;
  color: rgb(var(--content-secondary));
  text-align: center;
  font-weight: 400;
  max-width: 220px;
}

/* Debug panel (toggle with Ctrl+Shift+D) */

#debug-panel {
  flex-shrink: 0;
}

#debug-log {
  display: none;
  max-height: 180px;
  overflow-y: auto;
  padding: 6px 10px;
  border-top: 1px solid var(--border);
  background: var(--debug-bg);
  color: var(--debug-fg);
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 10px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-wrap: break-word;
}

#debug-log.visible {
  display: block;
}

.debug-line {
  user-select: text;
  -webkit-user-select: text;
}

.debug-info {
  color: var(--debug-info);
}

.debug-success {
  color: var(--debug-success);
}

.debug-warn {
  color: var(--debug-warn);
}

.debug-error {
  color: var(--debug-error);
}

/* ── API Key Setup ─────────────────────────────────────────────────────── */

#api-key-setup {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

#api-key-setup form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 320px;
}

#api-key-setup label {
  font-size: 13px;
  font-weight: 500;
  color: var(--muted-strong);
}

#api-key-setup select,
#api-key-setup input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  color: var(--fg);
  background: var(--input-bg);
  outline: none;
  width: 100%;
}

#api-key-setup select:focus,
#api-key-setup input:focus {
  border-color: var(--focus-ring);
}

#api-key-setup button {
  padding: 10px 16px;
  border: none;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
  align-self: flex-end;
}

#api-key-setup button:hover:not(:disabled) {
  background: #3a4dd6;
}

#api-key-setup button:disabled {
  opacity: 0.35;
  cursor: default;
}

/* ── Settings Modal ────────────────────────────────────────────────────── */

#settings-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
  animation: fadeIn 0.2s ease-out;
}

#settings-modal {
  background: rgb(var(--background-emphasis));
  border: 1px solid var(--border);
  border-radius: 12px 12px 0 0;
  padding: 0;
  width: 100%;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
  animation: slideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border);
}

.settings-header h2 {
  font-size: 15px;
  font-weight: 500;
  color: var(--fg);
  margin: 0;
}

.settings-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.settings-close:hover {
  color: var(--fg);
  background: var(--user-bg);
}

#settings-modal form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
}

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

.settings-field label {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted-strong);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

#settings-modal select,
#settings-modal input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 13px;
  color: var(--fg);
  background: var(--input-bg);
  outline: none;
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}

#settings-modal select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
  cursor: pointer;
}

#settings-modal select:focus,
#settings-modal input:focus {
  border-color: var(--muted);
}

.settings-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  padding-top: 4px;
}

.settings-actions button[type="button"] {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--fg);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s;
}

.settings-actions button[type="button"]:hover {
  background: var(--user-bg);
}

.settings-actions button[type="submit"] {
  padding: 8px 20px;
  border: none;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.settings-actions button[type="submit"]:hover:not(:disabled) {
  background: #3a4dd6;
}

.settings-actions button[type="submit"]:disabled {
  opacity: 0.35;
  cursor: default;
}

/* ── Settings button (cogwheel in top overlay) ─────────────────────────── */

#settings-btn {
  pointer-events: all;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.3s, opacity 0.2s, background 0.2s;
  position: relative;
  margin-left: 2px;
}

#settings-btn:hover {
  color: var(--fg);
  background: var(--user-bg);
}

#settings-btn::after {
  content: "Settings";
  position: absolute;
  top: 50%;
  right: calc(100% + 8px);
  transform: translateY(-50%);
  background: rgb(var(--content-primary));
  color: rgb(var(--background-emphasis));
  font-size: 11px;
  font-weight: 400;
  white-space: nowrap;
  padding: 8px 12px;
  border-radius: 6px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 20;
}

#settings-btn:hover::after {
  opacity: 1;
}