/* ==========================================================================
   ClaudeZer0 — Interfaz cálida estilo Claude
   Temas: claro (por defecto) y oscuro · Acentos personalizables
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens de diseño
   -------------------------------------------------------------------------- */
:root {
  /* Superficies (tema claro) */
  --bg: #faf9f5;
  --bg-sidebar: #f5f4ee;
  --surface: #ffffff;
  --surface-2: #f0eee6;
  --hover: rgba(20, 20, 19, 0.05);
  --active: #eceae1;
  --overlay: rgba(20, 20, 19, 0.32);

  --border: #e5e2d8;
  --border-strong: #d3cfc1;

  --text: #141413;
  --text-2: #3d3d3a;
  --muted: #73726c;
  --subtle: #a09e96;

  --code-bg: #f1efe8;
  --pre-bg: #f6f5f0;

  --shadow-sm: 0 1px 2px rgba(20, 20, 19, 0.05);
  --shadow-md: 0 1px 2px rgba(20, 20, 19, 0.04), 0 6px 20px rgba(20, 20, 19, 0.06);
  --shadow-lg: 0 2px 6px rgba(20, 20, 19, 0.05), 0 16px 40px rgba(20, 20, 19, 0.12);

  --danger: #c2413b;
  --success: #2f8a5b;
  --warning: #b7791f;

  /* Acento (terracota por defecto) */
  --accent: #d97757;
  --accent-strong: #c6613f;
  --accent-contrast: #ffffff;

  /* Tipografía */
  --font-serif: 'Newsreader', Georgia, Cambria, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'Cascadia Code', Consolas, monospace;
  --font-chat: var(--font-serif);

  /* Medidas */
  --sidebar-w: 288px;
  --composer-w: 672px;
  --chat-w: 720px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);

  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #262624;
  --bg-sidebar: #1f1e1d;
  --surface: #30302e;
  --surface-2: #393937;
  --hover: rgba(255, 255, 255, 0.06);
  --active: #3a3936;
  --overlay: rgba(0, 0, 0, 0.55);

  --border: #3e3d39;
  --border-strong: #52504a;

  --text: #f5f4ef;
  --text-2: #e3e1da;
  --muted: #a6a39b;
  --subtle: #7d7a72;

  --code-bg: #1f1e1c;
  --pre-bg: #1d1c1a;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 1px 2px rgba(0, 0, 0, 0.3), 0 6px 20px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 2px 6px rgba(0, 0, 0, 0.3), 0 18px 44px rgba(0, 0, 0, 0.45);

  --danger: #e5605a;
  --success: #52b788;
  --warning: #e0a43a;

  color-scheme: dark;
}

:root[data-accent="ocean"] { --accent: #3f7fd9; --accent-strong: #2f69bd; }
:root[data-accent="forest"] { --accent: #3f9a6b; --accent-strong: #2f7f56; }
:root[data-accent="violet"] { --accent: #8b5cf6; --accent-strong: #7443e6; }
:root[data-accent="rose"] { --accent: #d9577f; --accent-strong: #bf4068; }
:root[data-accent="graphite"] { --accent: #5f5e5a; --accent-strong: #464541; }
:root[data-theme="dark"][data-accent="graphite"] { --accent: #c9c6bc; --accent-strong: #e3e0d6; --accent-contrast: #1f1e1d; }

:root[data-chat-font="sans"] { --font-chat: var(--font-sans); }
:root[data-chat-font="mono"] { --font-chat: var(--font-mono); }

:root {
  --accent-soft: color-mix(in srgb, var(--accent) 12%, transparent);
  --accent-ring: color-mix(in srgb, var(--accent) 35%, transparent);

  /* Alias usados por estilos en línea del JS */
  --claude-terracotta: var(--accent);
  --claude-terracotta-hover: var(--accent-strong);
  --claude-terracotta-light: var(--accent-soft);
  --bg-main: var(--bg);
  --bg-input: var(--surface);
  --bg-card: var(--surface);
  --bg-hover: var(--active);
  --border-subtle: var(--border);
  --border-focus: var(--border-strong);
  --text-main: var(--text);
  --text-muted: var(--muted);
  --text-subtle: var(--subtle);
  --danger-red: var(--danger);
  --success-green: var(--success);
}

/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  height: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

svg {
  flex-shrink: 0;
}

[hidden] {
  display: none !important;
}

::selection {
  background: var(--accent-ring);
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}

*::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

*::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 8px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

kbd {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--subtle);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0 5px;
  line-height: 1.5;
  background: var(--surface);
}

/* Botón de icono genérico */
.icon-btn {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  transition: background-color 0.15s ease, color 0.15s ease;
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

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

.icon-btn-lg svg {
  width: 22px;
  height: 22px;
}

/* --------------------------------------------------------------------------
   3. Login
   -------------------------------------------------------------------------- */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  height: 100dvh;
  padding: 20px;
  background-color: var(--bg);
}

/* Comprobando la sesión guardada al cargar: ni login ni app hasta saber cuál toca */
:root.auth-pending .login-container {
  display: none !important;
}

.login-card {
  width: 100%;
  max-width: 400px;
  text-align: center;
  padding: 36px 28px;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-md);
}

.claude-star-logo {
  width: 48px;
  height: 48px;
  margin: 0 auto 14px;
  color: var(--accent);
}

.claude-star-logo svg {
  width: 100%;
  height: 100%;
}

.login-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 6px;
}

.login-desc {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.45;
  margin-bottom: 24px;
}

.login-desc code,
.login-footer-hint code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
}

.input-group {
  text-align: left;
  margin-bottom: 16px;
}

.input-group label {
  display: block;
  font-size: 0.84rem;
  color: var(--text-2);
  margin-bottom: 6px;
  font-weight: 500;
}

.input-group input {
  width: 100%;
  padding: 11px 13px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.input-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.login-error {
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent);
  color: var(--danger);
  font-size: 0.85rem;
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 16px;
}

.btn-login {
  width: 100%;
  padding: 12px;
  background-color: var(--text);
  color: var(--bg);
  border: none;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: opacity 0.15s, transform 0.1s;
}

.btn-login:hover {
  opacity: 0.88;
}

.btn-login:active {
  transform: scale(0.99);
}

.login-footer-hint {
  font-size: 0.78rem;
  color: var(--subtle);
  margin-top: 20px;
}

/* --------------------------------------------------------------------------
   4. Layout
   -------------------------------------------------------------------------- */
.app-layout {
  display: flex;
  height: 100vh;
  height: 100dvh;
  width: 100vw;
  overflow: hidden;
  position: relative;
}

/* --------------------------------------------------------------------------
   5. Barra lateral
   -------------------------------------------------------------------------- */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  padding-top: var(--safe-top);
  z-index: 50;
  transition: margin-left 0.25s cubic-bezier(0.16, 1, 0.3, 1), transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 10px 8px;
}

.brand-text {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
}

.sidebar-search {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 4px 10px 10px;
  padding: 0 10px;
  height: 36px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--subtle);
  cursor: text;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.sidebar-search:focus-within {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 3px var(--hover);
}

.sidebar-search svg {
  width: 16px;
  height: 16px;
}

.sidebar-search input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.9rem;
  color: var(--text);
}

.sidebar-search input::placeholder {
  color: var(--subtle);
}

.sidebar-search input::-webkit-search-cancel-button {
  display: none;
}

.sidebar-search kbd {
  opacity: 0;
  transition: opacity 0.15s;
}

.sidebar-search:hover kbd,
.sidebar-search:focus-within kbd {
  opacity: 1;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 0 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 7px 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-2);
  font-size: 0.93rem;
  text-align: left;
  transition: background-color 0.12s ease, color 0.12s ease;
}

.nav-item:hover {
  background: var(--hover);
  color: var(--text);
}

.nav-icon {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
}

.nav-icon svg {
  width: 18px;
  height: 18px;
}

.main-app-empty .nav-item-new {
  background: var(--active);
  color: var(--text);
}

.nav-item-more .nav-icon svg {
  transition: transform 0.2s ease;
}

.nav-item-more[aria-expanded="true"] .nav-icon svg {
  transform: rotate(180deg);
}

.nav-item-more:not([aria-expanded="true"]) {
  color: var(--muted);
}

.nav-meta {
  display: none;
}

.nav-more-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.sidebar-history {
  flex: 1;
  overflow-y: auto;
  padding: 18px 8px 8px;
}

.sidebar-section-title {
  font-size: 0.8rem;
  color: var(--muted);
  padding: 0 10px 6px;
}

.sessions-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.session-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-2);
  cursor: pointer;
  user-select: none;
  transition: background-color 0.12s ease;
}

.session-item:hover {
  background: var(--hover);
}

.session-item.active {
  background: var(--active);
  color: var(--text);
}

.session-title-text {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 6px;
}

.session-del-btn {
  opacity: 0;
  width: 26px;
  height: 26px;
  margin: -3px -4px -3px 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--muted);
  border-radius: 7px;
  transition: opacity 0.12s, color 0.12s, background-color 0.12s;
}

.session-del-btn svg {
  width: 15px;
  height: 15px;
}

.session-item:hover .session-del-btn,
.session-item.active .session-del-btn {
  opacity: 1;
}

.session-del-btn:hover {
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 10%, transparent);
}

.sessions-loading {
  font-size: 0.84rem;
  color: var(--subtle);
  padding: 6px 10px;
}

.sidebar-bottom {
  padding: 8px;
  padding-bottom: calc(8px + var(--safe-bottom));
  border-top: 1px solid var(--border);
}

.user-dropdown {
  display: flex;
  width: 100%;
}

.user-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 7px 8px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  text-align: left;
  transition: background-color 0.12s;
}

.user-pill:hover,
.user-dropdown.open .user-pill {
  background: var(--hover);
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--active);
  color: var(--text-2);
  font-size: 0.72rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

.user-details {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 5px;
  overflow: hidden;
  white-space: nowrap;
}

.user-name {
  font-size: 0.9rem;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-plan-sep,
.user-plan {
  font-size: 0.8rem;
  color: var(--muted);
  flex-shrink: 0;
}

.user-pill .chevron-icon {
  width: 15px;
  height: 15px;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   6. Zona principal y cabecera
   -------------------------------------------------------------------------- */
.main-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--bg);
  position: relative;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  padding-top: calc(10px + var(--safe-top));
  min-height: 56px;
  z-index: 10;
}

.top-left {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.top-chat-title {
  font-size: 0.92rem;
  color: var(--text-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0 4px;
}

.top-chat-title .incognito-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  color: var(--muted);
}

.top-chat-title .incognito-chip svg {
  width: 16px;
  height: 16px;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

#btn-hamburger {
  display: none;
}

.sidebar-collapsed #btn-hamburger {
  display: inline-flex;
}

.sidebar-collapsed .sidebar {
  margin-left: calc(-1 * var(--sidebar-w));
}

#btn-incognito[aria-pressed="true"] {
  background: var(--text);
  color: var(--bg);
}

/* Indicador de modo: solo aparece cuando hay algo que configurar */
.mode-pill-btn {
  display: none;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid color-mix(in srgb, var(--warning) 50%, transparent);
  background: color-mix(in srgb, var(--warning) 10%, transparent);
  color: var(--warning);
}

.mode-pill-btn.client-missing {
  display: inline-flex;
}

.mode-pill-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse-dot 1.2s infinite alternate;
}

/* --------------------------------------------------------------------------
   7. Conversación
   -------------------------------------------------------------------------- */
.chat-viewport {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 8px 20px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Pantalla de inicio: saludo y caja de texto centrados */
.empty-state {
  width: 100%;
  max-width: var(--composer-w);
  text-align: center;
  display: none;
}

.main-app-empty .empty-state {
  display: block;
}

.main-app-empty .chat-viewport {
  flex: 1 1 0;
  justify-content: flex-end;
  padding-bottom: 26px;
}

.main-app-empty .input-area {
  flex: 1.25 1 0;
  align-items: flex-start;
}

.main-app-empty .messages-container {
  display: none;
}

.empty-greeting {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  font-family: var(--font-serif);
  font-size: 2.45rem;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--text);
  text-wrap: balance;
}

.greeting-mark {
  display: inline-flex;
  color: var(--accent);
}

.greeting-mark svg {
  width: 38px;
  height: 38px;
}

.greeting-mark-incognito {
  display: none;
  color: var(--text);
}

.incognito .greeting-mark:not(.greeting-mark-incognito) {
  display: none;
}

.incognito .greeting-mark-incognito {
  display: inline-flex;
}

.empty-subtext {
  display: none;
}

.incognito-note {
  display: none;
  margin-top: 10px;
  font-size: 0.92rem;
  color: var(--muted);
}

.incognito .incognito-note {
  display: block;
}

.messages-container {
  width: 100%;
  max-width: var(--chat-w);
  display: flex;
  flex-direction: column;
  gap: 26px;
  padding: 8px 0 24px;
}

.msg-row {
  display: flex;
  flex-direction: column;
  animation: fadeIn 0.2s ease;
}

.msg-row.user {
  align-self: flex-end;
  max-width: 80%;
}

.msg-row.user .msg-bubble {
  background: var(--surface-2);
  border-radius: 16px;
  padding: 10px 16px;
  color: var(--text);
  font-size: 0.97rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.msg-row.assistant {
  align-self: stretch;
}

.assistant-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.claude-avatar-mini {
  width: 22px;
  height: 22px;
  color: var(--accent);
  display: inline-flex;
}

.claude-avatar-mini svg {
  width: 100%;
  height: 100%;
}

.assistant-name {
  display: none;
}

.is-running .msg-row.assistant:last-child .claude-avatar-mini svg {
  animation: spark-spin 2.4s linear infinite;
}

.msg-row.assistant .msg-bubble {
  color: var(--text-2);
  font-family: var(--font-chat);
  font-size: 1.04rem;
  line-height: 1.7;
  word-break: break-word;
}

:root[data-chat-font="sans"] .msg-row.assistant .msg-bubble,
:root[data-chat-font="mono"] .msg-row.assistant .msg-bubble {
  font-size: 0.96rem;
}

/* Markdown */
.msg-bubble p {
  margin-bottom: 12px;
}

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

.msg-bubble h1,
.msg-bubble h2,
.msg-bubble h3,
.msg-bubble h4 {
  font-family: var(--font-chat);
  color: var(--text);
  font-weight: 600;
  line-height: 1.3;
  margin: 20px 0 10px;
}

.msg-bubble h1 { font-size: 1.4em; }
.msg-bubble h2 { font-size: 1.25em; }
.msg-bubble h3 { font-size: 1.1em; }

.msg-bubble ul,
.msg-bubble ol {
  padding-left: 1.4em;
  margin: 8px 0 12px;
}

.msg-bubble li {
  margin: 4px 0;
}

.msg-bubble a {
  color: var(--accent-strong);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.msg-bubble blockquote {
  border-left: 3px solid var(--border-strong);
  padding-left: 14px;
  color: var(--muted);
  margin: 12px 0;
}

.msg-bubble hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 18px 0;
}

.msg-bubble table {
  border-collapse: collapse;
  margin: 12px 0;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  display: block;
  overflow-x: auto;
}

.msg-bubble th,
.msg-bubble td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  text-align: left;
}

.msg-bubble th {
  background: var(--surface-2);
}

.msg-bubble code {
  font-family: var(--font-mono);
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 1px 5px;
  border-radius: 5px;
  font-size: 0.84em;
  color: var(--text);
}

.msg-bubble pre {
  background: var(--pre-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  overflow-x: auto;
  margin: 14px 0;
}

.msg-bubble pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.84rem;
  line-height: 1.6;
}

/* Razonamiento y herramientas */
.claude-thinking {
  background: var(--surface-2);
  border-radius: 10px;
  padding: 8px 12px;
  font-family: var(--font-sans);
  font-size: 0.86rem;
  color: var(--muted);
  margin-bottom: 12px;
}

.claude-thinking summary {
  cursor: pointer;
  font-weight: 500;
  color: var(--text-2);
  outline: none;
}

.thinking-content {
  white-space: pre-wrap;
  line-height: 1.55;
}

.claude-tool {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 7px 12px;
  margin: 8px 0;
  font-size: 0.84rem;
  font-family: var(--font-sans);
}

.claude-tool-name {
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  min-width: 0;
}

.claude-tool-name::-webkit-details-marker {
  display: none;
}

.tool-verb {
  font-weight: 500;
  flex-shrink: 0;
}

.tool-target {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.tool-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--muted);
}

.claude-tool.is-running .tool-status {
  background: var(--accent);
  animation: tool-pulse 1.1s ease-in-out infinite;
}

.claude-tool.is-done .tool-status {
  background: var(--success);
}

.claude-tool.is-error .tool-status {
  background: var(--danger);
}

@keyframes tool-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.claude-tool-body .diff-del {
  color: var(--danger);
}

.claude-tool-body .diff-add {
  color: var(--success);
}

.claude-tool-body.tool-error {
  color: var(--danger);
}

.claude-tool-body {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--code-bg);
  padding: 8px 10px;
  border-radius: 6px;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--muted);
  max-height: 200px;
  overflow-y: auto;
}

/* Tarjetas interactivas (/model, /help, etc.) */
.interactive-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  margin-top: 6px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

.interactive-card-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.interactive-card-sub {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 12px;
}

.interactive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px;
}

.interactive-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 9px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.84rem;
  text-align: left;
  transition: border-color 0.12s, background-color 0.12s;
}

.interactive-btn:hover {
  border-color: var(--border-strong);
  background: var(--hover);
}

.interactive-btn.active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-strong);
  font-weight: 600;
}

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

.interactive-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 0.8rem;
  color: var(--text-2);
  transition: background-color 0.12s, border-color 0.12s;
}

.interactive-action-btn:hover {
  background: var(--hover);
  border-color: var(--border-strong);
}

/* --------------------------------------------------------------------------
   8. Caja de texto (composer)
   -------------------------------------------------------------------------- */
.input-area {
  flex: 0 0 auto;
  width: 100%;
  display: flex;
  justify-content: center;
  padding: 0 20px calc(16px + var(--safe-bottom));
  z-index: 10;
}

.composer {
  width: 100%;
  max-width: var(--composer-w);
  display: flex;
  flex-direction: column;
}

.is-chat .composer {
  max-width: var(--chat-w);
}

.input-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 12px 10px 16px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.input-card:focus-within {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-lg);
}

#prompt-input {
  width: 100%;
  min-height: 26px;
  max-height: 240px;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.5;
  padding-right: 4px;
  margin-bottom: 12px;
}

#prompt-input::placeholder {
  color: var(--subtle);
}

.input-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-left: -6px;
}

.input-meta-left,
.input-meta-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.composer-plus {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.composer-plus svg {
  width: 18px;
  height: 18px;
}

.btn-voice.listening {
  color: var(--accent);
  animation: pulse-dot 1s infinite alternate;
}

.btn-send-claude,
.btn-stop-task {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s, opacity 0.15s, transform 0.1s;
}

.btn-send-claude {
  background: var(--accent);
  color: var(--accent-contrast);
}

.btn-send-claude svg {
  width: 17px;
  height: 17px;
}

.btn-send-claude:hover {
  background: var(--accent-strong);
}

.btn-send-claude:active,
.btn-stop-task:active {
  transform: scale(0.94);
}

.input-card:not(.has-text) .btn-send-claude {
  opacity: 0.4;
  pointer-events: none;
}

.btn-stop-task {
  background: var(--text);
  color: var(--bg);
}

.btn-stop-task svg {
  width: 16px;
  height: 16px;
}

/* Controles bajo la caja */
.composer-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 4px 0;
}

.toolbar-left,
.toolbar-right {
  display: flex;
  align-items: center;
  gap: 2px;
  min-width: 0;
}

.chip-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  max-width: 220px;
  padding: 5px 9px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-2);
  font-size: 0.86rem;
  white-space: nowrap;
  transition: background-color 0.12s, color 0.12s;
}

.chip-btn:hover,
.custom-dropdown.open > .chip-btn {
  background: var(--hover);
  color: var(--text);
}

.chip-btn .chevron-icon {
  width: 14px;
  height: 14px;
  color: var(--muted);
}

.ws-name-text {
  overflow: hidden;
  text-overflow: ellipsis;
}

.model-name-text {
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
}

.model-effort-text {
  color: var(--muted);
}

.model-effort-text:empty {
  display: none;
}

.model-selector-btn.working .model-name-text::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: middle;
  animation: pulse-dot 0.9s infinite alternate;
}

.mode-icon-current {
  display: none;
}

/* Sugerencias de inicio */
.starter-cards {
  display: none;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 22px;
}

.main-app-empty .starter-cards {
  display: flex;
}

.starter-card {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-2);
  font-size: 0.86rem;
  transition: background-color 0.12s, border-color 0.12s;
}

.starter-card svg {
  width: 16px;
  height: 16px;
  color: var(--muted);
}

.starter-card:hover {
  background: var(--surface);
  border-color: var(--border-strong);
}

/* --------------------------------------------------------------------------
   9. Menús desplegables
   -------------------------------------------------------------------------- */
.custom-dropdown {
  position: relative;
  display: inline-flex;
}

.dropdown-menu {
  position: absolute;
  bottom: calc(100% + 8px);
  min-width: 240px;
  max-width: min(340px, calc(100vw - 24px));
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px) scale(0.985);
  transform-origin: bottom center;
  transition: opacity 0.14s ease, transform 0.14s cubic-bezier(0.16, 1, 0.3, 1);
}

.custom-dropdown.open > .dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

/* En la pantalla de inicio los menús de la caja se abren hacia abajo, como en claude.ai */
.main-app-empty .composer .dropdown-menu {
  bottom: auto;
  top: calc(100% + 8px);
  transform: translateY(-4px) scale(0.985);
  transform-origin: top center;
}

.main-app-empty .composer .custom-dropdown.open > .dropdown-menu {
  transform: none;
}

#menu-plus,
#menu-project,
#menu-output {
  left: 0;
}

#menu-model-options,
#menu-mode-options {
  right: 0;
}

.model-menu {
  width: 310px;
}

.mode-menu {
  width: 300px;
}

.output-menu,
.project-menu {
  width: 290px;
}

.user-menu {
  left: 0;
  right: 0;
  max-width: none;
}

.dropdown-section-header {
  font-size: 0.76rem;
  color: var(--muted);
  padding: 6px 10px 4px;
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 5px 4px;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  text-align: left;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.1s ease;
}

.dropdown-item:hover {
  background: var(--hover);
}

.item-content {
  flex: 1;
  min-width: 0;
}

.item-title {
  font-size: 0.92rem;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.item-desc {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.35;
  margin-top: 1px;
}

.item-title-row {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
}

.cost-chip {
  flex-shrink: 0;
  font-size: 0.7rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  padding: 0 6px;
  border-radius: 6px;
  line-height: 1.55;
  color: var(--muted);
  background: var(--hover);
}

.item-price {
  font-size: 0.74rem;
  color: var(--subtle);
  margin-top: 2px;
  font-variant-numeric: tabular-nums;
}

/* Coste de cada respuesta */
.msg-cost {
  margin-top: 8px;
  font-family: var(--font-sans);
  font-size: 0.76rem;
  color: var(--subtle);
  font-variant-numeric: tabular-nums;
  cursor: default;
}

/* Panel de uso y gasto */
.usage-dialog {
  max-width: 600px;
}

.usage-summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.usage-total {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--text);
}

.usage-total-label {
  font-size: 0.86rem;
  color: var(--muted);
}

.usage-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.usage-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
}

.usage-table th,
.usage-table td {
  padding: 8px 12px;
  text-align: right;
  white-space: nowrap;
}

.usage-table th:first-child,
.usage-table td:first-child {
  text-align: left;
}

.usage-table th {
  font-weight: 500;
  font-size: 0.78rem;
  color: var(--muted);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.usage-table tr + tr td {
  border-top: 1px solid var(--border);
}

.usage-bar {
  display: block;
  height: 4px;
  margin-top: 4px;
  border-radius: 2px;
  background: var(--accent);
  opacity: 0.7;
}

.usage-empty {
  padding: 18px 12px;
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
}

.usage-note {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.5;
}

.usage-note strong {
  color: var(--text-2);
  font-weight: 600;
}

.usage-ref {
  color: var(--subtle);
}

.usage-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Límites de uso de la suscripción */
.plan-limits {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.plan-limits-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.plan-limits-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.plan-limits-plan {
  font-size: 0.85rem;
  color: var(--muted);
}

.plan-limits-sub {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-2);
  margin-top: 2px;
}

.plan-row {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) minmax(120px, 2fr) auto;
  align-items: center;
  gap: 6px 16px;
}

.plan-row-label {
  font-size: 0.88rem;
  color: var(--text);
}

.plan-row-reset {
  display: block;
  font-size: 0.76rem;
  color: var(--muted);
  margin-top: 2px;
}

.plan-row-value {
  font-size: 0.82rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.plan-meter {
  display: block;
  height: 8px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  overflow: hidden;
}

.plan-meter > span {
  display: block;
  height: 100%;
  min-width: 4px;
  border-radius: 4px;
  background: var(--accent);
}

.plan-meter.is-warn > span { background: #d9a13f; }
.plan-meter.is-full > span { background: #d9534f; }

.plan-limits-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--muted);
}

.plan-refresh {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
}

.plan-refresh:hover { background: var(--bg); color: var(--text); }
.plan-refresh svg { width: 14px; height: 14px; }
.plan-refresh.is-loading svg { animation: plan-spin 0.8s linear infinite; }

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

.plan-limits-error {
  font-size: 0.82rem;
  color: var(--muted);
}

@media (max-width: 520px) {
  .plan-row { grid-template-columns: 1fr auto; }
  .plan-row .plan-meter { grid-column: 1 / -1; grid-row: 2; }
}

/* Indicador de límite junto al selector de modelo */
.plan-chip {
  gap: 6px;
  font-variant-numeric: tabular-nums;
}

.plan-chip-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.plan-chip.is-warn { color: #b7791f; }
.plan-chip.is-full { color: #c53d38; }

.plan-chip-reset { color: var(--muted); }

@media (max-width: 520px) {
  .plan-chip-reset { display: none; }
}

/* Aviso antes de enviar cuando queda poco margen */
.plan-alert {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-bottom: 8px;
  padding: 10px 14px;
  border: 1px solid color-mix(in srgb, #d9a13f 55%, transparent);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, #d9a13f 10%, var(--surface, transparent));
  font-size: 0.86rem;
  color: var(--text-2);
}

.plan-alert-text {
  flex: 1 1 260px;
  line-height: 1.45;
}

.plan-alert-text strong {
  color: var(--text);
  font-weight: 600;
}

.plan-alert-reset {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
}

.plan-alert-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* Seguridad */
.security-dialog {
  max-width: 480px;
}

.security-danger {
  color: var(--danger);
  border-color: color-mix(in srgb, var(--danger) 45%, transparent);
}

/* Resumen compacto en el menú del perfil */
.plan-mini {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  margin: 2px 0 4px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  text-align: left;
  color: var(--text-2);
}

.plan-mini:hover { background: var(--bg); }

.plan-mini-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3px 8px;
  font-size: 0.78rem;
}

.plan-mini-row .plan-meter {
  grid-column: 1 / -1;
  height: 5px;
}

.plan-mini-row .plan-row-value { font-size: 0.76rem; }

.item-check {
  width: 17px;
  height: 17px;
  color: var(--accent);
  opacity: 0;
}

.dropdown-item.selected .item-check {
  opacity: 1;
}

.btn-del-model {
  display: inline-flex;
  background: none;
  border: none;
  color: var(--subtle);
  padding: 3px;
  border-radius: 5px;
}

.btn-del-model:hover {
  color: var(--danger);
}

.menu-row,
.dropdown-action-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-2);
  font-size: 0.88rem;
  text-align: left;
  transition: background-color 0.1s ease, color 0.1s ease;
}

.menu-row:hover,
.dropdown-action-btn:hover {
  background: var(--hover);
  color: var(--text);
}

.menu-row svg,
.dropdown-action-btn svg {
  width: 17px;
  height: 17px;
  color: var(--muted);
}

.menu-row span {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dropdown-action-btn {
  font-size: 0.84rem;
  color: var(--muted);
}

.menu-row-static {
  cursor: default;
}

.menu-row-static:hover {
  background: transparent;
}

.menu-row-danger:hover,
.menu-row-danger:hover svg {
  color: var(--danger);
}

.user-menu-email {
  font-size: 0.8rem;
  color: var(--muted);
  padding: 6px 10px 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-menu-email:empty {
  display: none;
}

.theme-switch {
  display: inline-flex;
  gap: 2px;
  padding: 2px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.theme-switch button {
  width: 28px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
}

.theme-switch button svg {
  width: 15px;
  height: 15px;
}

.theme-switch button.active {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.project-recent-empty {
  font-size: 0.84rem;
  color: var(--subtle);
  padding: 4px 10px 8px;
}

.project-row .project-path {
  display: block;
  font-size: 0.74rem;
  color: var(--subtle);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  direction: rtl;
  text-align: left;
}

/* Submenús laterales (Esfuerzo y Más modelos) */
.submenu {
  position: relative;
}

.submenu-trigger {
  font-size: 0.92rem;
  color: var(--text);
}

.submenu-label {
  flex: 1;
}

.submenu-value {
  font-size: 0.86rem;
  color: var(--muted);
}

.submenu-chevron {
  width: 15px;
  height: 15px;
  color: var(--muted);
  transition: transform 0.15s ease;
}

.submenu.open > .submenu-trigger {
  background: var(--hover);
}

.submenu.has-selected .submenu-label::after {
  content: '•';
  margin-left: 6px;
  color: var(--accent);
}

.submenu-flyout {
  position: absolute;
  top: -6px;
  right: calc(100% + 10px);
  min-width: 210px;
  max-height: min(60vh, 440px);
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: none;
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transform: translateX(4px);
  transition: opacity 0.12s ease, transform 0.12s ease;
}

.submenu-flyout::-webkit-scrollbar {
  display: none;
}

/* Puente invisible entre el menú y el submenú (en el propio submenú, fuera del área con scroll)
   para que el ratón pueda cruzar el hueco sin que se cierre */
.submenu.open::before {
  content: '';
  position: absolute;
  top: -40px;
  bottom: -40px;
  right: 100%;
  width: 14px;
}

.submenu.open > .submenu-flyout {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.submenu-flyout.flyout-up {
  top: auto;
  bottom: -6px;
}

.effort-submenu .submenu-flyout {
  min-width: 260px;
}

/* Corrección de dirección cuando no cabe (lo decide el JS al abrir) */
.custom-dropdown > .dropdown-menu.flip-up {
  top: auto;
  bottom: calc(100% + 8px);
  transform-origin: bottom center;
}

.custom-dropdown > .dropdown-menu.flip-down {
  bottom: auto;
  top: calc(100% + 8px);
  transform-origin: top center;
}

.model-option-compact {
  padding: 7px 10px;
}

.model-option-compact .item-title {
  font-size: 0.9rem;
}

/* Comandos con "/" */
.slash-popup {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 0;
  right: 0;
  max-height: 300px;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  padding: 6px;
  flex-direction: column;
  gap: 1px;
  animation: slideUpFade 0.14s ease;
}

.main-app-empty .slash-popup {
  bottom: auto;
  top: calc(100% + 10px);
}

.slash-popup-header {
  font-size: 0.76rem;
  color: var(--muted);
  padding: 6px 10px 4px;
}

.slash-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  user-select: none;
}

.slash-item:hover,
.slash-item.active {
  background: var(--hover);
}

.slash-item-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.slash-item-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  flex-shrink: 0;
}

.slash-item-icon svg {
  width: 15px;
  height: 15px;
}

.slash-cmd-name {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.84rem;
  color: var(--accent-strong);
  flex-shrink: 0;
}

.slash-cmd-desc {
  font-size: 0.82rem;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.slash-cmd-hint {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--subtle);
}

.slash-cmd-badge {
  font-size: 0.7rem;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 6px;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   10. Modales
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  backdrop-filter: blur(2px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadeIn 0.15s ease;
}

.modal-dialog {
  width: 100%;
  max-width: 540px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
}

.key-modal-dialog {
  max-width: 480px;
}

.modal-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 10px;
}

.modal-top h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text);
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--muted);
}

.modal-close:hover {
  background: var(--hover);
  color: var(--text);
}

.modal-body {
  padding: 8px 20px 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.modal-bottom {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 20px 18px;
}

.modal-title-with-icon {
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-title-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.modal-title-icon svg {
  width: 20px;
  height: 20px;
}

.btn-text {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-2);
  padding: 8px 14px;
  font-size: 0.88rem;
}

.btn-text:hover {
  background: var(--hover);
}

.btn-primary-terracotta {
  background: var(--text);
  color: var(--bg);
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-size: 0.88rem;
  font-weight: 500;
  transition: opacity 0.15s;
}

.btn-primary-terracotta:hover {
  opacity: 0.88;
}

/* Selector de carpeta */
.label-tiny {
  font-size: 0.76rem;
  color: var(--muted);
}

.quick-chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.loc-chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 5px 10px;
  font-size: 0.82rem;
  color: var(--text-2);
  cursor: pointer;
}

.loc-chip:hover {
  border-color: var(--border-strong);
  background: var(--hover);
}

.path-navigation,
.create-folder-row {
  display: flex;
  gap: 6px;
}

.btn-up-dir,
.btn-go-dir,
.btn-create-subfolder {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-2);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  white-space: nowrap;
}

.btn-up-dir:hover,
.btn-go-dir:hover,
.btn-create-subfolder:hover {
  background: var(--hover);
}

#custom-dir-input,
#new-folder-name {
  flex: 1;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  color: var(--text);
  font-size: 0.84rem;
  outline: none;
}

#custom-dir-input {
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

#custom-dir-input:focus,
#new-folder-name:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.dir-explorer {
  max-height: 240px;
  overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.dir-loading {
  font-size: 0.84rem;
  color: var(--subtle);
  padding: 8px 10px;
}

.folder-row {
  padding: 7px 10px;
  border-radius: 7px;
  font-size: 0.86rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-2);
}

.folder-row:hover {
  background: var(--hover);
  color: var(--text);
}

.folder-svg-icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent);
}

/* Modal de clave y modo */
.mode-info-banner {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}

.mode-info-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}

.mode-badge-pill {
  padding: 2px 9px;
  border-radius: 12px;
  font-size: 0.74rem;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.mode-badge-pill.client {
  background: color-mix(in srgb, #3f7fd9 14%, transparent);
  color: #3f7fd9;
}

.mode-info-status {
  font-size: 0.82rem;
  color: var(--muted);
}

.mode-info-desc {
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.45;
}

.mode-info-desc code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
}

.key-field-section {
  text-align: left;
}

.key-field-label {
  display: block;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.key-input-wrapper {
  display: flex;
  position: relative;
  width: 100%;
}

.client-key-input {
  width: 100%;
  padding: 10px 40px 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.client-key-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.btn-toggle-key-visibility {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: 4px;
  display: flex;
  color: var(--muted);
}

.btn-toggle-key-visibility:hover {
  color: var(--text);
}

.btn-toggle-key-visibility svg {
  width: 17px;
  height: 17px;
}

.key-input-hint {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 6px;
  line-height: 1.4;
}

.key-input-hint a {
  color: var(--accent-strong);
}

.key-status-box {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  line-height: 1.4;
  display: flex;
  align-items: center;
  gap: 8px;
}

.key-status-box.success {
  background: color-mix(in srgb, var(--success) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--success) 45%, transparent);
  color: var(--success);
}

.key-status-box.error {
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent);
  color: var(--danger);
}

.key-status-box.checking {
  background: var(--hover);
  border: 1px solid var(--border);
  color: var(--text-2);
}

.key-actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn-secondary-dark,
.btn-danger-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 13px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  background: transparent;
  transition: background-color 0.12s, border-color 0.12s;
}

.btn-secondary-dark {
  border: 1px solid var(--border);
  color: var(--text-2);
}

.btn-secondary-dark:hover {
  background: var(--hover);
  border-color: var(--border-strong);
}

.btn-danger-outline {
  border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent);
  color: var(--danger);
}

.btn-danger-outline:hover {
  background: color-mix(in srgb, var(--danger) 8%, transparent);
}

.btn-secondary-dark svg,
.btn-danger-outline svg {
  width: 14px;
  height: 14px;
}

.spin-icon {
  animation: spin 0.9s linear infinite;
}

/* Modal de personalización */
.personalize-dialog {
  max-width: 520px;
}

.pz-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pz-label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
}

.pz-input {
  width: 100%;
  padding: 9px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.pz-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.pz-textarea {
  resize: vertical;
  min-height: 92px;
  line-height: 1.5;
}

.pz-hint {
  font-size: 0.78rem;
  color: var(--muted);
}

.pz-segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.pz-segmented button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-2);
  font-size: 0.86rem;
  transition: border-color 0.12s, background-color 0.12s;
}

.pz-segmented button svg {
  width: 16px;
  height: 16px;
}

.pz-segmented button:hover {
  border-color: var(--border-strong);
}

.pz-segmented button.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--text);
}

.pz-font-sample {
  font-size: 1.05rem;
  line-height: 1;
}

.pz-font-serif { font-family: var(--font-serif); }
.pz-font-sans { font-family: var(--font-sans); }
.pz-font-mono { font-family: var(--font-mono); font-size: 0.9rem; }

.pz-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pz-swatches button {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid var(--surface);
  background: var(--swatch);
  box-shadow: 0 0 0 1px var(--border);
  transition: transform 0.12s, box-shadow 0.12s;
}

.pz-swatches button:hover {
  transform: scale(1.08);
}

.pz-swatches button.active {
  box-shadow: 0 0 0 2px var(--text);
}

/* --------------------------------------------------------------------------
   11. Animaciones
   -------------------------------------------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUpFade {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-dot {
  from { opacity: 0.45; }
  to { opacity: 1; }
}

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

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

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* --------------------------------------------------------------------------
   12. Móvil
   -------------------------------------------------------------------------- */
.sidebar-backdrop {
  display: none;
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(86vw, 310px);
    transform: translateX(-100%);
  }

  .sidebar-collapsed .sidebar {
    margin-left: 0;
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: var(--overlay);
    z-index: 40;
  }

  .sidebar-backdrop.active {
    display: block;
  }

  #btn-hamburger {
    display: inline-flex;
  }

  .top-nav {
    padding: 8px 10px;
    padding-top: calc(8px + var(--safe-top));
  }

  .chat-viewport {
    padding: 8px 14px 10px;
  }

  /* En pantallas estrechas el saludo ocupa dos líneas: el destello va encima, centrado */
  .empty-greeting {
    flex-direction: column;
    font-size: 1.85rem;
    gap: 10px;
  }

  .greeting-mark svg {
    width: 30px;
    height: 30px;
  }

  .main-app-empty .input-area {
    flex-grow: 1.6;
  }

  .input-area {
    padding: 0 12px calc(10px + var(--safe-bottom));
  }

  .msg-row.user {
    max-width: 90%;
  }

  /* Sin hueco de sobra: con el punto de «trabajando» los chips no caben en 390 px */
  .composer-toolbar {
    padding-top: 6px;
    gap: 2px;
  }

  .model-selector-btn.working .model-name-text::before {
    margin-right: 4px;
  }

  .chip-btn {
    padding: 5px 5px;
    font-size: 0.84rem;
    max-width: 140px;
  }

  .dropdown-menu {
    max-width: calc(100vw - 24px);
  }

  .model-menu,
  .mode-menu {
    width: min(310px, calc(100vw - 24px));
  }

  /* En móvil los submenús se despliegan debajo en lugar de al lado */
  .submenu-flyout,
  .main-app-empty .submenu-flyout {
    position: static;
    display: none;
    min-width: 0;
    max-height: none;
    margin: 1px 0 2px 10px;
    padding: 0;
    background: none;
    border: none;
    box-shadow: none;
    transform: none;
  }

  .submenu.open::before {
    display: none;
  }

  .submenu.open > .submenu-flyout {
    display: flex;
  }

  .submenu.open .submenu-chevron {
    transform: rotate(90deg);
  }

  .starter-cards {
    margin-top: 16px;
  }
}

/* ==========================================================================
   Archivos adjuntos (temporales)
   ========================================================================== */
.attach-preview,
.msg-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.attach-preview {
  margin-bottom: 10px;
}

.msg-attachments {
  justify-content: flex-end;
  margin-bottom: 6px;
}

.attach-chip {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  max-width: 200px;
  height: 56px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.78rem;
}

.attach-chip.is-image {
  width: 56px;
  padding: 0;
  overflow: hidden;
}

.attach-chip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.msg-attachments .attach-chip.is-image {
  width: auto;
  height: auto;
  max-width: 220px;
  max-height: 220px;
}

.attach-chip .attach-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.attach-remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 12px;
  line-height: 18px;
  cursor: pointer;
  padding: 0;
}

.input-card.drag-over {
  border-color: var(--accent);
}

/* ==========================================================================
   Permisos de herramientas (modo Manual / Aceptar ediciones)
   ========================================================================== */
.permission-dock {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
}

.permission-card {
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--border));
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--accent) 6%, var(--surface));
  box-shadow: var(--shadow-sm);
  font-size: 0.86rem;
  color: var(--text-2);
  transition: opacity 0.3s ease;
}

.permission-card.is-settled { opacity: 0.7; }
.permission-card.is-allowed { border-color: color-mix(in srgb, var(--success) 50%, var(--border)); }
.permission-card.is-denied { border-color: color-mix(in srgb, var(--danger) 50%, var(--border)); }

.permission-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.permission-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 1px;
  color: var(--accent);
}

.permission-title {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.permission-title strong {
  color: var(--text);
  font-weight: 600;
}

.permission-title code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  word-break: break-all;
}

.permission-note {
  font-size: 0.76rem;
  color: var(--muted);
}

.permission-detail {
  margin: 8px 0 0 28px;
}

.permission-detail summary {
  cursor: pointer;
  font-size: 0.78rem;
  color: var(--muted);
}

.permission-detail .claude-tool-body {
  max-height: 240px;
  overflow: auto;
}

.permission-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 10px;
}

.permission-actions button:disabled {
  opacity: 0.5;
  cursor: default;
}

.permission-result {
  font-size: 0.8rem;
  font-weight: 600;
}

.is-allowed .permission-result { color: var(--success); }
.is-denied .permission-result { color: var(--danger); }

/* Herramienta que espera a que el usuario la apruebe */
.claude-tool.is-waiting .tool-status {
  background: var(--warning);
  animation: none;
}

.claude-tool.is-waiting .tool-verb::after {
  content: ' · esperando permiso';
  color: var(--warning);
  font-weight: 400;
}

/* ==========================================================================
   Usuarios (admin) y límite mensual
   ========================================================================== */
.users-dialog {
  max-width: 560px;
}

.users-list {
  display: flex;
  flex-direction: column;
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.user-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
  padding: 12px 14px;
}

.user-row + .user-row {
  border-top: 1px solid var(--border);
}

.user-row-main {
  flex: 1 1 260px;
  min-width: 0;
}

.user-row-name {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--text);
}

.user-row-meta {
  margin-top: 4px;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.user-row-meta code {
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.user-row-actions {
  display: flex;
  gap: 6px;
}

.user-role-chip {
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--muted);
}

.user-role-chip.is-admin {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent-strong);
}

.users-form {
  display: flex;
  flex-direction: column;
}

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

.users-modes label {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 8px;
  font-size: 0.86rem;
  color: var(--text-2);
  cursor: pointer;
}

.users-modes input {
  accent-color: var(--accent);
}

.users-modes small {
  font-size: 0.76rem;
  color: var(--muted);
}

.usage-limit {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.84rem;
  color: var(--text-2);
}

.usage-limit.is-reached {
  border-color: color-mix(in srgb, var(--danger) 50%, var(--border));
}