/* =============================================================
   MLC DESIGN SYSTEM — shared tokens
   ============================================================= */
:root {
  --mlc-accent:       #6366f1;
  --mlc-accent-hover: #4f46e5;
  --mlc-accent-soft:  rgba(99,102,241,.08);
  --mlc-text:         #0f172a;
  --mlc-text-2:       #334155;
  --mlc-text-3:       #64748b;
  --mlc-border:       #e2e8f0;
  --mlc-surface:      #f8fafc;
  --mlc-surface-2:    #f1f5f9;
  --mlc-white:        #ffffff;
  --mlc-radius-sm:    6px;
  --mlc-radius:       10px;
  --mlc-radius-lg:    14px;
  --mlc-shadow:       0 1px 3px rgba(0,0,0,.05), 0 4px 16px rgba(0,0,0,.04);
  --mlc-font:         'Inter', system-ui, -apple-system, sans-serif;
}

/* =============================================================
   AISLAMIENTO CONTRA ELEMENTOR / TEMAS
   ============================================================= */
.mlc-layout-wrapper,
.mlc-layout-wrapper *,
.mlc-layout-wrapper *::before,
.mlc-layout-wrapper *::after {
  box-sizing: border-box !important;
  text-decoration: none;
}
.mlc-layout-wrapper {
  all: revert;
  display: flex !important;
  font-family: var(--mlc-font) !important;
  font-size: 15px !important;
  line-height: 1.6 !important;
  color: var(--mlc-text) !important;
  -webkit-font-smoothing: antialiased !important;
  -moz-osx-font-smoothing: grayscale !important;
  letter-spacing: normal !important;
  word-spacing: normal !important;
  text-transform: none !important;
  text-indent: 0 !important;
  text-shadow: none !important;
  vertical-align: baseline !important;
}
.mlc-layout-wrapper h1,.mlc-layout-wrapper h2,.mlc-layout-wrapper h3,
.mlc-layout-wrapper h4,.mlc-layout-wrapper h5,.mlc-layout-wrapper h6 {
  margin:0 !important; padding:0 !important; font-family:inherit !important;
  line-height:1.3 !important; color:inherit !important; font-weight:600 !important;
  text-transform:none !important; letter-spacing:normal !important;
  border:none !important; background:none !important;
}
.mlc-layout-wrapper p {
  margin:0 0 1em 0 !important; padding:0 !important; font-family:inherit !important;
  font-size:inherit !important; line-height:inherit !important; color:inherit !important;
}
.mlc-layout-wrapper a {
  color:inherit !important; text-decoration:underline;
  font-family:inherit !important; font-size:inherit !important; background:none !important;
}
.mlc-layout-wrapper button {
  font-family:inherit !important; cursor:pointer; background:none; border:none;
  padding:0; margin:0; color:inherit !important; font-size:inherit !important;
  line-height:inherit !important; letter-spacing:normal !important;
  text-transform:none !important; text-align:inherit;
}
.mlc-layout-wrapper input,.mlc-layout-wrapper textarea,.mlc-layout-wrapper select {
  font-family:inherit !important; font-size:inherit !important; color:inherit !important;
  line-height:inherit !important; letter-spacing:normal !important;
  border-radius:0; -webkit-appearance:none; appearance:none;
}
.mlc-layout-wrapper ul,.mlc-layout-wrapper ol {
  margin:0 0 1em 0 !important; padding:0 0 0 1.5em !important;
  font-family:inherit !important; font-size:inherit !important; color:inherit !important;
}
.mlc-layout-wrapper li {
  margin:0 0 .25em 0 !important; padding:0 !important;
  font-family:inherit !important; line-height:inherit !important;
}
.mlc-layout-wrapper img { max-width:100% !important; height:auto !important; border:none !important; }
.mlc-layout-wrapper label {
  font-family:inherit !important; font-size:inherit !important;
  color:inherit !important; font-weight:normal !important;
}
.mlc-layout-wrapper span { font-family:inherit !important; color:inherit; }

/* =============================================================
   LAYOUT WRAPPER
   ============================================================= */
.mlc-layout-wrapper {
  display: flex;
  flex-direction: row;
  height: 600px;
  max-height: 82vh;
  border: 1px solid var(--mlc-border);
  border-radius: var(--mlc-radius-lg);
  overflow: hidden;
  background: var(--mlc-white);
  position: relative;
  box-shadow: var(--mlc-shadow);
}

/* =============================================================
   CUSTOM SCROLLBAR
   ============================================================= */
.mlc-history-list::-webkit-scrollbar,
.mlc-chat-messages::-webkit-scrollbar { width: 4px; }
.mlc-history-list::-webkit-scrollbar-track,
.mlc-chat-messages::-webkit-scrollbar-track { background: transparent; }
.mlc-history-list::-webkit-scrollbar-thumb,
.mlc-chat-messages::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,.08); border-radius: 4px;
}
.mlc-history-list::-webkit-scrollbar-thumb:hover,
.mlc-chat-messages::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,.14); }

/* =============================================================
   SIDEBAR
   ============================================================= */
.mlc-sidebar {
  width: 240px;
  background: var(--mlc-surface);
  border-right: 1px solid var(--mlc-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 10;
}
.mlc-sidebar-header {
  padding: 18px 16px 14px;
  border-bottom: 1px solid var(--mlc-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.mlc-sidebar-header h3 {
  font-size: 11px !important;
  font-weight: 600 !important;
  color: var(--mlc-text-3) !important;
  text-transform: uppercase !important;
  letter-spacing: .08em !important;
}
.mlc-close-sidebar-btn {
  background: none !important; border: none !important;
  font-size: 16px !important; cursor: pointer; display: none;
  color: var(--mlc-text-3) !important; padding: 0 !important;
  margin: 0 !important; line-height: 1 !important;
  transition: color .15s;
}
.mlc-close-sidebar-btn:hover { color: var(--mlc-text) !important; }

.mlc-new-chat-wrapper { padding: 12px 12px 8px; }
.mlc-new-chat-btn {
  width: 100% !important;
  padding: 9px 14px !important;
  background: var(--mlc-white) !important;
  border: 1.5px solid var(--mlc-border) !important;
  border-radius: var(--mlc-radius-sm) !important;
  cursor: pointer; text-align: center !important;
  font-weight: 500 !important; font-size: 13px !important;
  color: var(--mlc-text-2) !important;
  transition: all .2s; box-shadow: none !important;
  letter-spacing: .01em !important; text-decoration: none !important;
  display: flex !important; align-items: center !important;
  justify-content: center !important; gap: 6px !important;
}
.mlc-new-chat-btn:hover {
  background: var(--mlc-surface-2) !important;
  border-color: #cbd5e1 !important;
  color: var(--mlc-text) !important;
}

.mlc-history-list { flex: 1; overflow-y: auto; padding: 4px 8px 12px; }
.mlc-history-loading { font-size: 12px; color: var(--mlc-text-3); text-align: center; padding: 20px 0; }
.mlc-history-empty  { font-size: 12px; color: var(--mlc-text-3); text-align: center; padding: 20px 8px; }

.mlc-history-item {
  padding: 9px 10px; margin-bottom: 1px; border-radius: var(--mlc-radius-sm);
  cursor: pointer; display: flex; justify-content: space-between;
  align-items: center; transition: background .12s;
}
.mlc-history-item:hover { background: var(--mlc-surface-2); }
.mlc-history-item.active { background: var(--mlc-accent-soft); }
.mlc-history-item.active .mlc-history-title { color: var(--mlc-accent) !important; font-weight: 600; }

.mlc-history-info { flex: 1; overflow: hidden; min-width: 0; }
.mlc-history-title {
  display: block; font-size: 13px; color: var(--mlc-text-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.mlc-history-date { display: block; font-size: 10px; color: var(--mlc-text-3); margin-top: 2px; }

.mlc-history-actions { display: none; gap: 2px; flex-shrink: 0; }
.mlc-history-item:hover .mlc-history-actions { display: flex; }
.mlc-action-btn {
  background: none !important; border: none !important;
  font-size: 12px !important; cursor: pointer; opacity: .45;
  padding: 4px 5px !important; box-shadow: none !important;
  text-decoration: none !important; border-radius: 4px !important;
  transition: opacity .15s, background .15s !important;
}
.mlc-action-btn:hover {
  opacity: 1; background: rgba(0,0,0,.05) !important;
}

/* =============================================================
   MAIN CHAT AREA
   ============================================================= */
.mlc-chat-container {
  flex: 1; display: flex; flex-direction: column;
  min-width: 0; background: var(--mlc-white);
}

/* --- HEADER --- */
.mlc-chat-header {
  height: 56px; border-bottom: 1px solid var(--mlc-border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; background: var(--mlc-white); flex-shrink: 0;
  gap: 12px;
}
.mlc-sidebar-toggle {
  display: none; background: none !important; border: none !important;
  font-size: 18px !important; cursor: pointer; color: var(--mlc-text-3) !important;
  padding: 6px !important; margin: 0 !important; box-shadow: none !important;
  border-radius: var(--mlc-radius-sm) !important; flex-shrink: 0;
  transition: color .15s, background .15s !important;
}
.mlc-sidebar-toggle:hover { color: var(--mlc-text) !important; background: var(--mlc-surface) !important; }

.mlc-chat-title {
  font-weight: 600 !important; font-size: 14px !important;
  color: var(--mlc-text) !important; flex: 1;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  letter-spacing: -.01em !important;
}
.mlc-header-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

.mlc-quota-display {
  font-size: 11px !important; font-weight: 500 !important;
  color: var(--mlc-text-3) !important; background: var(--mlc-surface) !important;
  padding: 4px 10px !important; border-radius: 20px !important;
  border: 1px solid var(--mlc-border) !important;
  white-space: nowrap;
}
.mlc-download-chat-btn {
  background: var(--mlc-surface) !important; border: 1px solid var(--mlc-border) !important;
  cursor: pointer; font-size: 13px !important; color: var(--mlc-text-3) !important;
  padding: 5px 8px !important; border-radius: var(--mlc-radius-sm) !important;
  display: flex !important; align-items: center; justify-content: center;
  transition: all .2s; box-shadow: none !important; text-decoration: none !important;
  line-height: 1 !important;
}
.mlc-download-chat-btn:hover {
  border-color: #cbd5e1 !important; color: var(--mlc-text-2) !important;
  background: var(--mlc-surface-2) !important;
}

/* --- MESSAGES --- */
.mlc-chat-messages {
  flex: 1; padding: 28px 32px; overflow-y: auto;
  background: var(--mlc-white); display: flex;
  flex-direction: column; gap: 0;
}
.mlc-message {
  max-width: 100%; line-height: 1.7; font-size: 15px;
  color: var(--mlc-text); animation: mlcFadeUp .2s ease;
  padding: 20px 0; border-bottom: 1px solid var(--mlc-surface-2);
}
.mlc-message:last-child { border-bottom: none; }
@keyframes mlcFadeUp {
  from { opacity:0; transform:translateY(6px); }
  to   { opacity:1; transform:translateY(0); }
}
.mlc-message-header {
  display: flex; align-items: center; margin-bottom: 8px; gap: 8px;
}
.mlc-role-label {
  font-weight: 700 !important; font-size: 11px !important;
  text-transform: uppercase !important; letter-spacing: .07em !important;
}
.mlc-message.user .mlc-role-label  { color: var(--mlc-text-3) !important; }
.mlc-message.assistant .mlc-role-label { color: var(--mlc-accent) !important; }

.mlc-message.assistant {
  background: var(--mlc-surface);
  padding: 20px 24px;
  border-radius: var(--mlc-radius);
  border: 1px solid var(--mlc-border);
  margin: 6px 0;
}
.mlc-message.assistant .mlc-message-content { color: var(--mlc-text-2); }
.mlc-message.error { color: #dc2626; font-size: 13px; }

.mlc-message-copy-btn {
  background: transparent !important; border: none !important; box-shadow: none !important;
  cursor: pointer; margin-left: auto; display: flex; align-items: center;
  justify-content: center; color: var(--mlc-text-3) !important;
  padding: 4px 6px !important; border-radius: 4px !important;
  transition: all .15s !important; text-decoration: none !important;
}
.mlc-message-copy-btn:hover {
  color: var(--mlc-text-2) !important; background: rgba(0,0,0,.05) !important;
}
.mlc-message-copy-btn svg { display: block; }

/* --- MARKDOWN --- */
.markdown-body p { margin: 0 0 0.85em 0 !important; }
.markdown-body p:last-child { margin-bottom: 0 !important; }
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5 {
  margin: 1.15em 0 .55em !important;
  line-height: 1.25 !important;
  font-weight: 700 !important;
  color: var(--mlc-text) !important;
}
.markdown-body h2:first-child,
.markdown-body h3:first-child,
.markdown-body h4:first-child,
.markdown-body h5:first-child { margin-top: 0 !important; }
.markdown-body h2 { font-size: 1.45em !important; }
.markdown-body h3 { font-size: 1.2em !important; }
.markdown-body h4 { font-size: 1.08em !important; }
.markdown-body h5 { font-size: 1em !important; }
.markdown-body ul,
.markdown-body ol {
  margin: .35em 0 1em 1.35em !important;
  padding: 0 !important;
}
.markdown-body li { margin: .22em 0 !important; padding-left: .1em !important; }
.markdown-body hr {
  border: 0 !important;
  border-top: 1px solid var(--mlc-border) !important;
  margin: 1.1em 0 !important;
}
.markdown-body .mlc-markdown-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 1.1em 0 !important;
  border: 1px solid #dbe5ef;
  border-radius: 8px;
  background: var(--mlc-white);
  box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
}
.markdown-body table {
  width: 100%;
  min-width: 560px;
  border-collapse: separate;
  border-spacing: 0;
  table-layout: fixed;
  margin: 0 !important;
  font-size: 13.5px;
  line-height: 1.55;
}
.markdown-body th,
.markdown-body td {
  padding: 12px 13px !important;
  border: 0 !important;
  border-right: 1px solid #dbe5ef !important;
  border-bottom: 1px solid #dbe5ef !important;
  text-align: left;
  vertical-align: top;
  color: #0f2a4d;
  background: #fff;
  word-break: normal;
  overflow-wrap: anywhere;
}
.markdown-body th:last-child,
.markdown-body td:last-child { border-right: 0 !important; }
.markdown-body tbody tr:last-child td { border-bottom: 0 !important; }
.markdown-body th {
  background: #f6f9fc;
  color: #081b33;
  font-weight: 700 !important;
  vertical-align: middle;
}
.markdown-body tbody tr:nth-child(even) td { background: #fff; }
.markdown-body strong { font-weight: 700; color: var(--mlc-text); }
.markdown-body em { font-style: italic; }
.markdown-body pre {
  background: #f8f9fb; padding: 14px 16px; border-radius: var(--mlc-radius-sm);
  overflow-x: auto; margin: 14px 0;
  font-family: 'Consolas','Fira Mono',monospace;
  font-size: 13px; color: var(--mlc-text-2);
  border: 1px solid var(--mlc-border); line-height: 1.6;
}
.markdown-body code {
  background: var(--mlc-surface-2); padding: .15em .4em;
  border-radius: 4px; font-family: monospace; font-size: 88%;
  color: var(--mlc-text-2);
}
.markdown-body pre code { background: none; padding: 0; font-size: inherit; color: inherit; }
.markdown-body a { color: var(--mlc-accent); text-decoration: underline; }
.markdown-body a:hover { text-decoration: none; }

/* HTML preview */
.mlc-html-preview { border: 1px solid var(--mlc-border); border-radius: var(--mlc-radius); overflow: hidden; margin: 8px 0; }
.mlc-html-preview-bar {
  background: var(--mlc-surface); padding: 8px 14px;
  display: flex; align-items: center; gap: 8px; border-bottom: 1px solid var(--mlc-border);
  font-size: 12px; color: var(--mlc-text-3);
}
.mlc-html-preview-bar span { flex: 1; font-weight: 500; }
.mlc-copy-html-btn, .mlc-toggle-source-btn {
  background: var(--mlc-white) !important; border: 1px solid var(--mlc-border) !important;
  border-radius: 5px !important; padding: 4px 10px !important;
  font-size: 11px !important; color: var(--mlc-text-2) !important;
  cursor: pointer; transition: all .15s; font-family: inherit !important;
}
.mlc-copy-html-btn:hover, .mlc-toggle-source-btn:hover {
  background: var(--mlc-surface-2) !important; color: var(--mlc-text) !important;
}

/* Code block */
.mlc-code-block { position: relative; margin: 14px 0; }
.mlc-code-lang {
  position: absolute; top: 10px; right: 12px;
  font-size: 10px; font-weight: 600; text-transform: uppercase;
  color: var(--mlc-text-3); letter-spacing: .05em;
}

/* --- LOADING --- */
.mlc-loading .mlc-bubble { color: var(--mlc-text-3); font-size: 14px; }
.mlc-loading-timer { font-variant-numeric: tabular-nums; opacity: .7; }
.mlc-spinner-small {
  width: 14px; height: 14px; border: 2px solid rgba(0,0,0,.08);
  border-top-color: var(--mlc-accent); border-radius: 50%;
  animation: mlcSpin .7s linear infinite; display: inline-block;
}
@keyframes mlcSpin { to { transform: rotate(360deg); } }

/* --- INPUT AREA --- */
.mlc-input-area {
  padding: 16px 24px 20px; border-top: 1px solid var(--mlc-border);
  background: var(--mlc-white); display: flex;
  flex-direction: column; gap: 10px; flex-shrink: 0;
}
.mlc-attachments-preview { display: flex; flex-wrap: wrap; gap: 6px; }
.mlc-attachment-item {
  background: var(--mlc-surface); color: var(--mlc-text-2);
  padding: 5px 10px; border-radius: 20px; font-size: 12px;
  border: 1px solid var(--mlc-border); display: flex; align-items: center; gap: 5px;
}
.mlc-attachment-item.mlc-uploading { opacity: .55; }
.mlc-att-icon { display: flex; align-items: center; }
.mlc-att-remove { cursor: pointer; color: var(--mlc-text-3); margin-left: 2px; transition: color .15s; }
.mlc-att-remove:hover { color: #dc2626; }

.mlc-history-attachments { margin-top: 10px; }
.mlc-att-tag-history {
  display: inline-block; background: var(--mlc-surface);
  border: 1px solid var(--mlc-border); padding: 2px 8px;
  border-radius: 12px; font-size: 11px; margin: 4px 4px 0 0; color: var(--mlc-text-3);
}

.mlc-input-wrapper {
  display: flex; align-items: flex-end; gap: 10px;
  background: var(--mlc-white) !important;
  border: 1.5px solid var(--mlc-border) !important;
  border-radius: var(--mlc-radius) !important;
  padding: 10px 14px !important;
  transition: border-color .2s, box-shadow .2s;
  box-shadow: none !important;
}
.mlc-input-wrapper:focus-within {
  border-color: var(--mlc-accent) !important;
  box-shadow: 0 0 0 3px var(--mlc-accent-soft) !important;
}
.mlc-input-wrapper textarea {
  flex: 1; border: none !important; outline: none !important; resize: none;
  max-height: 180px; font-family: inherit !important; font-size: 15px !important;
  line-height: 1.6 !important; padding: 0 !important; color: var(--mlc-text) !important;
  background: transparent !important; box-shadow: none !important;
  border-radius: 0 !important;
}
.mlc-input-wrapper textarea::placeholder { color: var(--mlc-text-3) !important; }

.mlc-attach-btn {
  background: none !important; border: none !important;
  cursor: pointer; color: var(--mlc-text-3) !important;
  padding: 4px !important; transition: color .2s; box-shadow: none !important;
  text-decoration: none !important; font-size: 16px !important;
}
.mlc-attach-btn:hover { color: var(--mlc-text) !important; background: none !important; }

/* --- ATTACH MENU (subir / reusar) --- */
.mlc-attach-wrap { position: relative; display: flex; align-items: center; }
.mlc-attach-menu {
  position: absolute; bottom: calc(100% + 10px); left: 0; z-index: 20;
  min-width: 232px; padding: 6px;
  background: var(--mlc-white); border: 1px solid var(--mlc-border);
  border-radius: 12px; box-shadow: 0 8px 24px rgba(0,0,0,.12);
}
.mlc-attach-menu-item {
  display: flex !important; align-items: center; gap: 10px; width: 100%;
  background: none !important; border: none !important; box-shadow: none !important;
  padding: 9px 10px !important; border-radius: 8px; cursor: pointer;
  font-size: 14px !important; color: var(--mlc-text) !important;
  text-align: left; text-decoration: none !important;
}
.mlc-attach-menu-item:hover { background: var(--mlc-surface) !important; color: var(--mlc-text) !important; }
.mlc-attach-menu-icon { font-size: 15px; line-height: 1; }
.mlc-attach-hint {
  margin-top: 4px; padding: 8px 10px 4px;
  border-top: 1px solid var(--mlc-border);
  font-size: 11px; line-height: 1.5; color: var(--mlc-text-3);
}

/* --- SELECTOR DE ARCHIVOS YA SUBIDOS --- */
.mlc-files-modal {
  position: fixed; inset: 0; z-index: 100000;
  display: flex; align-items: center; justify-content: center;
}
.mlc-files-backdrop { position: absolute; inset: 0; background: rgba(15,23,42,.45); }
.mlc-files-dialog {
  position: relative; width: min(560px, calc(100vw - 32px));
  max-height: min(640px, calc(100vh - 48px));
  display: flex; flex-direction: column; gap: 12px; padding: 20px;
  background: var(--mlc-white); border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0,0,0,.25);
}
.mlc-files-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.mlc-files-header h4 { margin: 0; font-size: 16px; color: var(--mlc-text); }
.mlc-files-close {
  background: none !important; border: none !important; box-shadow: none !important;
  cursor: pointer; color: var(--mlc-text-3) !important; font-size: 15px !important; padding: 4px !important;
}
.mlc-files-close:hover { color: var(--mlc-text) !important; background: none !important; }
.mlc-files-hint { margin: 0; font-size: 12px; color: var(--mlc-text-3); }
.mlc-files-formats { margin-top: -6px; opacity: .85; }
.mlc-files-list {
  flex: 1; overflow-y: auto; min-height: 120px;
  display: flex; flex-direction: column; gap: 6px;
}
.mlc-files-empty, .mlc-files-loading { padding: 24px 8px; text-align: center; font-size: 13px; color: var(--mlc-text-3); }
.mlc-file-row {
  display: flex !important; align-items: center; gap: 10px; width: 100%;
  padding: 10px 12px !important; border: 1px solid var(--mlc-border) !important;
  border-radius: 10px !important; background: var(--mlc-white) !important;
  cursor: pointer; text-align: left; box-shadow: none !important;
}
.mlc-file-row:hover { border-color: var(--mlc-accent) !important; }
.mlc-file-row.mlc-selected { border-color: var(--mlc-accent) !important; background: var(--mlc-accent-soft) !important; }
.mlc-file-row.mlc-disabled { opacity: .5; cursor: not-allowed; }
.mlc-file-row.mlc-disabled:hover { border-color: var(--mlc-border) !important; }
.mlc-file-icon { font-size: 16px; line-height: 1; }
.mlc-file-info { flex: 1; min-width: 0; }
.mlc-file-name {
  display: block; font-size: 13px; color: var(--mlc-text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.mlc-file-meta { display: block; font-size: 11px; color: var(--mlc-text-3); margin-top: 2px; }
.mlc-file-check { font-size: 13px; color: var(--mlc-accent); }
.mlc-files-pager { display: flex; align-items: center; justify-content: center; gap: 12px; font-size: 12px; color: var(--mlc-text-3); }
.mlc-files-pager button {
  background: none !important; border: 1px solid var(--mlc-border) !important;
  border-radius: 8px !important; padding: 4px 10px !important; cursor: pointer;
  font-size: 12px !important; color: var(--mlc-text-2) !important; box-shadow: none !important;
}
.mlc-files-pager button[disabled] { opacity: .4; cursor: default; }
.mlc-files-footer {
  display: flex; align-items: center; gap: 10px;
  border-top: 1px solid var(--mlc-border); padding-top: 12px;
}
.mlc-files-selected { flex: 1; font-size: 12px; color: var(--mlc-text-3); }
.mlc-files-cancel, .mlc-files-confirm {
  border-radius: 10px !important; padding: 8px 16px !important;
  cursor: pointer; font-size: 13px !important; box-shadow: none !important;
}
.mlc-files-cancel { background: none !important; border: 1px solid var(--mlc-border) !important; color: var(--mlc-text-2) !important; }
.mlc-files-confirm { background: var(--mlc-accent) !important; border: none !important; color: #fff !important; }
.mlc-files-confirm[disabled] { opacity: .5; cursor: default; }

.mlc-send-btn {
  background: var(--mlc-accent) !important; color: #fff !important;
  border: none !important; border-radius: 50% !important;
  width: 36px !important; height: 36px !important; min-width: 36px !important;
  display: flex !important; align-items: center; justify-content: center;
  cursor: pointer; transition: all .2s ease; text-decoration: none !important; padding: 0 !important;
  box-shadow: 0 2px 8px rgba(99,102,241,.25) !important; flex-shrink: 0;
}
.mlc-send-btn:hover {
  background: var(--mlc-accent-hover) !important;
  box-shadow: 0 4px 14px rgba(99,102,241,.35) !important;
  transform: scale(1.06);
}
.mlc-send-btn:disabled {
  background: var(--mlc-surface-2) !important; color: var(--mlc-text-3) !important;
  cursor: not-allowed; box-shadow: none !important; transform: none !important;
}

/* --- QUOTA NOTICE (inline, non-blocking) --- */
.mlc-quota-notice {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  padding: 10px 16px;
  background: #fef9ec; border-top: 1px solid #fde68a;
  font-size: 13px; color: #92400e;
}
.mlc-quota-notice-icon { flex-shrink: 0; }
.mlc-quota-notice-text { flex: 1; }
.mlc-quota-notice-link {
  display: inline-flex !important; align-items: center;
  padding: 4px 12px !important; background: var(--mlc-accent) !important;
  color: #fff !important; text-decoration: none !important;
  border-radius: var(--mlc-radius-sm) !important; font-size: 12px !important;
  font-weight: 600 !important; white-space: nowrap;
  transition: background .2s;
}
.mlc-quota-notice-link:hover { background: var(--mlc-accent-hover) !important; }
.mlc-send-btn--disabled { opacity: .5; cursor: not-allowed !important; }

/* Warning variant — soft yellow, input stays enabled */
.mlc-quota-notice.mlc-quota-warning {
  background: #fffbeb; border-top-color: #fcd34d; color: #78350f;
}

/* kept for any remaining reference — hidden by default */
.mlc-quota-overlay { display: none !important; }
.mlc-btn-request-tokens {
  display: inline-block !important; margin-top: 18px !important;
  padding: 10px 24px !important; background: var(--mlc-accent) !important;
  color: #fff !important; text-decoration: none !important;
  border-radius: var(--mlc-radius-sm) !important; font-size: 13px !important;
  border: none !important; font-weight: 600 !important;
  box-shadow: 0 2px 8px rgba(99,102,241,.3) !important;
  transition: all .2s;
}
.mlc-btn-request-tokens:hover {
  background: var(--mlc-accent-hover) !important;
  box-shadow: 0 4px 14px rgba(99,102,241,.4) !important;
  color: #fff !important; transform: translateY(-1px);
}

.mlc-message-sources {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--mlc-border);
  color: var(--mlc-text-2);
  font-size: 13px;
}
.mlc-message-sources ol { margin: 8px 0 0; padding-left: 22px; }
.mlc-message-sources li { margin: 5px 0; }
.mlc-message-sources a { color: var(--mlc-accent-hover); overflow-wrap: anywhere; }
.mlc-message-sources small { display: block; color: var(--mlc-text-3); }

/* =============================================================
   RESPONSIVE
   ============================================================= */
/* =============================================================
   EMPTY STATE — welcome message + suggested prompts (starters)
   ============================================================= */
.mlc-empty-state {
  padding: 24px 20px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}
.mlc-empty-state .mlc-welcome-msg {
  font-size: 16px;
  line-height: 1.5;
  color: var(--mlc-text-2);
  max-width: 560px;
}
.mlc-empty-state .mlc-starters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 620px;
}
.mlc-empty-state .mlc-starter-chip {
  display: inline-flex;
  align-items: center;
  min-height: 44px;                 /* touch target */
  padding: 10px 16px;
  font-family: var(--mlc-font);
  font-size: 15px;
  line-height: 1.3;
  color: var(--mlc-text-2);
  background: var(--mlc-white);
  border: 1px solid var(--mlc-border);
  border-radius: 999px;
  cursor: pointer;
  transition: background .15s, border-color .15s, transform .05s;
  text-align: left;
}
.mlc-empty-state .mlc-starter-chip:hover {
  background: var(--mlc-accent-soft);
  border-color: var(--mlc-accent);
  color: var(--mlc-accent-hover);
}
.mlc-empty-state .mlc-starter-chip:active { transform: scale(.98); }

@media (max-width: 640px) {
  .mlc-layout-wrapper { height: 92svh; max-height: 92svh; border-radius: var(--mlc-radius); }

  .mlc-sidebar {
    position: absolute; left: -100%; top: 0; bottom: 0;
    height: 100%; width: 280px;
    box-shadow: 8px 0 24px rgba(0,0,0,.1);
    transition: left .28s cubic-bezier(.4,0,.2,1);
  }
  .mlc-sidebar.open { left: 0; }
  .mlc-sidebar-toggle { display: flex !important; }
  .mlc-close-sidebar-btn { display: block; }

  .mlc-chat-messages { padding: 16px 18px; }
  .mlc-input-area { padding: 12px 16px 16px; }
  .mlc-message.assistant { padding: 14px 16px; }
  .mlc-chat-header { padding: 0 14px; }

  /* Empty-state / starters on mobile: comfortable, full-width, no overflow.
     Bound the height + scroll so many chips never push the input off-screen. */
  .mlc-empty-state {
    padding: 18px 14px 4px;
    gap: 14px;
    max-height: 45svh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .mlc-empty-state .mlc-welcome-msg { font-size: 15px; }
  .mlc-empty-state .mlc-starters { justify-content: stretch; gap: 8px; }
  .mlc-empty-state .mlc-starter-chip {
    width: 100%;
    justify-content: flex-start;
    font-size: 15px;
    min-height: 46px;
  }
}