@import url("vendor/fonts.css");

/* ============================================================ токены темы */
:root {
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Newsreader", ui-serif, Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;

  --accent: #d97757;
  --accent-hover: #c2603f;
  --accent-soft: rgba(217, 119, 87, 0.11);

  --bg: #faf9f5;
  --bg-sidebar: #f5f4ee;
  --bg-elevated: #ffffff;
  --bg-hover: rgba(20, 20, 19, 0.05);
  --bg-active: rgba(20, 20, 19, 0.08);
  --bg-bubble: #f0eee6;
  --bg-code: #f5f4ee;
  --bg-code-head: #ebe9e0;

  --text: #141413;
  --text-secondary: #6c6b66;
  --text-tertiary: #97968f;
  --text-inverse: #faf9f5;

  --border: rgba(20, 20, 19, 0.1);
  --border-strong: rgba(20, 20, 19, 0.16);

  --shadow-sm: 0 1px 2px rgba(20, 20, 19, 0.06);
  --shadow-md: 0 2px 8px rgba(20, 20, 19, 0.07), 0 1px 2px rgba(20, 20, 19, 0.05);
  --shadow-lg: 0 8px 32px rgba(20, 20, 19, 0.12), 0 2px 8px rgba(20, 20, 19, 0.06);

  --sidebar-w: 17rem;
  --column: 46rem;
  --radius: 0.75rem;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

:root[data-theme="dark"] {
  --accent: #d97757;
  --accent-hover: #e08d6f;
  --accent-soft: rgba(217, 119, 87, 0.16);

  --bg: #262624;
  --bg-sidebar: #1f1e1d;
  --bg-elevated: #30302e;
  --bg-hover: rgba(255, 255, 255, 0.06);
  --bg-active: rgba(255, 255, 255, 0.1);
  --bg-bubble: #363532;
  --bg-code: #1c1b1a;
  --bg-code-head: #252423;

  --text: #f5f4ee;
  --text-secondary: #b0aea6;
  --text-tertiary: #85837c;
  --text-inverse: #1f1e1d;

  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.18);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.45);
}

/* =================================================================== база */
* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

svg { flex: none; }

::selection { background: rgba(217, 119, 87, 0.25); }

.icon { width: 1.125rem; height: 1.125rem; stroke-width: 1.75; }

/* тонкие скроллбары */
* { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
*::-webkit-scrollbar { width: 0.5rem; height: 0.5rem; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 1rem;
}

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

/* =============================================================== логотип */
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--text);
}
.logo .glyph { color: var(--accent); }

/* ================================================================ каркас */
.app {
  display: flex;
  height: 100dvh;
  overflow: hidden;
}

/* ============================================================== сайдбар */
.sidebar {
  width: var(--sidebar-w);
  flex: none;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: margin-left 0.25s var(--ease);
}
.app.collapsed .sidebar { margin-left: calc(-1 * var(--sidebar-w)); }

.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0.75rem 0.5rem 1rem;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  color: var(--text-secondary);
  transition: background 0.12s, color 0.12s;
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text); }
.icon-btn.active { color: var(--accent); background: var(--accent-soft); }

.new-chat {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.25rem 0.75rem 0.5rem;
  padding: 0.5rem 0.625rem;
  border-radius: 0.625rem;
  color: var(--accent);
  font-weight: 500;
  font-size: 0.875rem;
  transition: background 0.12s;
}
.new-chat:hover { background: var(--bg-hover); }

.search-wrap {
  position: relative;
  margin: 0 0.75rem 0.5rem;
}
.search-wrap svg {
  position: absolute;
  left: 0.625rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  width: 1rem;
  height: 1rem;
}
.search-wrap input {
  width: 100%;
  padding: 0.4375rem 0.625rem 0.4375rem 2rem;
  font: inherit;
  font-size: 0.8125rem;
  color: var(--text);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 0.5rem;
  outline: none;
}
.search-wrap input::placeholder { color: var(--text-tertiary); }
.search-wrap input:hover { background: var(--bg-hover); }
.search-wrap input:focus {
  background: var(--bg-elevated);
  border-color: var(--border-strong);
}

.chats {
  flex: 1;
  overflow-y: auto;
  padding: 0.25rem 0.5rem 1rem;
}
.chats-label {
  padding: 0.5rem 0.5rem 0.25rem;
  font-size: 0.75rem
;  font-weight: 500;
  color: var(--text-tertiary);
}

.chat-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  width: 100%;
  padding: 0.4375rem 0.5rem;
  border-radius: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  text-align: left;
  transition: background 0.12s, color 0.12s;
}
.chat-item:hover { background: var(--bg-hover); color: var(--text); }
.chat-item.current { background: var(--bg-active); color: var(--text); font-weight: 500; }
.chat-item .title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.chat-item .row-btn {
  opacity: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 0.375rem;
  color: var(--text-tertiary);
  flex: none;
}
.chat-item:hover .row-btn { opacity: 1; }
.chat-item .row-btn:hover { background: var(--bg-active); color: var(--text); }
.chat-item .row-btn svg { width: 0.875rem; height: 0.875rem; }

.sidebar-foot {
  border-top: 1px solid var(--border);
  padding: 0.5rem;
}
.user-row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  width: 100%;
  padding: 0.5rem;
  border-radius: 0.625rem;
  transition: background 0.12s;
}
.user-row:hover { background: var(--bg-hover); }
.avatar {
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  flex: none;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
}
.user-meta { text-align: left; overflow: hidden; }
.user-meta .name {
  font-size: 0.8125rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.user-meta .plan { font-size: 0.6875rem; color: var(--text-tertiary); }

/* ================================================================ основа */
.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  position: relative;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 0.875rem;
  min-height: 3.25rem;
}
.topbar .spacer { flex: 1; }
/* кнопка «показать панель» нужна только когда панель скрыта */
.app:not(.collapsed) #expand { display: none; }
.topbar-title {
  font-size: 0.875rem;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 24rem;
}

/* --------------------------------------------------------- выбор модели */
.model-select { position: relative; }
.model-btn {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.3125rem 0.5rem;
  border-radius: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  transition: background 0.12s, color 0.12s;
}
.model-btn:hover { background: var(--bg-hover); color: var(--text); }
.model-btn svg { width: 0.875rem; height: 0.875rem; }

.menu {
  position: absolute;
  z-index: 40;
  min-width: 15rem;
  padding: 0.375rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-lg);
  animation: pop 0.14s var(--ease);
}
.menu.right { right: 0; }
.menu.top { bottom: calc(100% + 0.375rem); }
.menu.below { top: calc(100% + 0.375rem); }
.menu[hidden] { display: none; }

@keyframes pop {
  from { opacity: 0; transform: translateY(0.25rem) scale(0.985); }
  to { opacity: 1; transform: none; }
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  width: 100%;
  padding: 0.5rem 0.625rem;
  border-radius: 0.5rem;
  font-size: 0.8125rem;
  text-align: left;
  transition: background 0.12s;
}
.menu-item:hover { background: var(--bg-hover); }
.menu-item .col { flex: 1; min-width: 0; }
.menu-item .sub { font-size: 0.6875rem; color: var(--text-tertiary); }
.menu-item .check { color: var(--accent); opacity: 0; }
.menu-item.selected .check { opacity: 1; }
.menu-sep { height: 1px; background: var(--border); margin: 0.375rem 0.25rem; }
.menu-item.danger { color: #c0392b; }
:root[data-theme="dark"] .menu-item.danger { color: #f0806b; }

/* ============================================================== диалог */
.scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
}
.thread {
  max-width: var(--column);
  margin: 0 auto;
  padding: 0.5rem 1.25rem 2rem;
}

.msg { margin-bottom: 1.75rem; }

/* сообщение пользователя — «пузырь» (вложения над текстом, всё по правому краю) */
.msg.user {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}
.msg.user .bubble {
  max-width: 85%;
  padding: 0.6875rem 1rem;
  background: var(--bg-bubble);
  border-radius: 1.125rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* ответ ассистента — без «пузыря» */
.msg.assistant .body { overflow-wrap: anywhere; }

.msg .attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
  margin-bottom: 0.5rem;
}
.msg .attachments img {
  max-width: 14rem;
  max-height: 14rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
}

.file-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  max-width: 14rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0.625rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.file-chip .fname {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* размышления */
.thinking {
  margin-bottom: 0.875rem;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  background: color-mix(in srgb, var(--bg-sidebar) 70%, transparent);
  overflow: hidden;
}
.thinking > summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  list-style: none;
}
.thinking > summary::-webkit-details-marker { display: none; }
.thinking > summary:hover { color: var(--text); }
.thinking > summary .chev { transition: transform 0.15s var(--ease); }
.thinking[open] > summary .chev { transform: rotate(90deg); }
.thinking .inner {
  padding: 0 0.75rem 0.75rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  border-top: 1px solid var(--border);
  padding-top: 0.625rem;
  max-height: 24rem;
  overflow-y: auto;
}

/* индикатор работы инструмента */
.tool-note {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  background: var(--bg-hover);
  border-radius: 0.5rem;
}

/* «дышащая» точка ожидания и каретка */
.pulse {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.1s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.25; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1); }
}
.caret {
  display: inline-block;
  width: 0.5rem;
  height: 1rem;
  margin-left: 0.125rem;
  vertical-align: text-bottom;
  background: var(--text);
  border-radius: 1px;
  animation: blink 1s steps(2, start) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* действия под ответом */
.actions {
  display: flex;
  gap: 0.125rem;
  margin-top: 0.375rem;
  opacity: 0;
  transition: opacity 0.15s;
}
.msg:hover .actions, .actions:focus-within { opacity: 1; }
.act {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.3125rem 0.5rem;
  border-radius: 0.5rem;
  color: var(--text-tertiary);
  font-size: 0.75rem;
  transition: background 0.12s, color 0.12s;
}
.act:hover { background: var(--bg-hover); color: var(--text); }
.act svg { width: 0.875rem; height: 0.875rem; }

/* ошибка */
.error-box {
  margin: 0.5rem 0 0;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(192, 57, 43, 0.35);
  border-radius: 0.75rem;
  background: rgba(192, 57, 43, 0.06);
  color: #a5352a;
  font-size: 0.8125rem;
}
:root[data-theme="dark"] .error-box { color: #f0a094; }

/* ======================================================== пустой экран */
.welcome {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 1.25rem 1.25rem 3rem;
  min-height: 0;
}
.welcome-inner { width: 100%; max-width: var(--column); }
.greeting {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4.5vw, 2.375rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text);
}
.greeting .glyph { color: var(--accent); }

.suggestions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4375rem;
  padding: 0.4375rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}
.chip:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
  color: var(--text);
}
.chip svg { width: 0.875rem; height: 0.875rem; color: var(--accent); }

/* ========================================================== композитор */
.composer-wrap {
  padding: 0 1.25rem 1rem;
  background: linear-gradient(to bottom, transparent, var(--bg) 35%);
}
.composer-wrap.docked { position: sticky; bottom: 0; padding-top: 0.5rem; }
.composer {
  max-width: var(--column);
  margin: 0 auto;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.composer:focus-within {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border-strong));
  box-shadow: var(--shadow-lg);
}

.attach-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 0.75rem 0;
}
.attach-preview:empty { display: none; }
.attach-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1.75rem 0.375rem 0.5rem;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 0.625rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  max-width: 12rem;
}
.attach-item img {
  width: 1.75rem; height: 1.75rem; object-fit: cover; border-radius: 0.375rem;
}
.attach-item .fname { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.attach-item .x {
  position: absolute;
  top: 50%;
  right: 0.25rem;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  color: var(--text-tertiary);
}
.attach-item .x:hover { background: var(--bg-active); color: var(--text); }

.composer textarea {
  display: block;
  width: 100%;
  max-height: 22rem;
  padding: 0.9375rem 1rem 0.5rem;
  font: inherit;
  color: var(--text);
  background: transparent;
  border: 0;
  outline: none;
  resize: none;
  overflow-y: auto;
}
.composer textarea::placeholder { color: var(--text-tertiary); }

.composer-foot {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.375rem 0.5rem 0.5rem;
}
.composer-foot .spacer { flex: 1; }

.tool-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  height: 2rem;
  padding: 0 0.5625rem;
  border-radius: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  transition: background 0.12s, color 0.12s;
}
.tool-toggle:hover { background: var(--bg-hover); color: var(--text); }
.tool-toggle.on { background: var(--accent-soft); color: var(--accent); }
.tool-toggle svg { width: 1rem; height: 1rem; }
.tool-toggle .label { display: none; }
.tool-toggle.on .label { display: inline; }
@media (min-width: 48rem) {
  .tool-toggle .label { display: inline; }
}

.send {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  flex: none;
  border-radius: 0.5rem;
  background: var(--accent);
  color: #fff;
  transition: background 0.12s, opacity 0.12s, transform 0.08s;
}
.send:hover:not(:disabled) { background: var(--accent-hover); }
.send:active:not(:disabled) { transform: scale(0.94); }
.send:disabled {
  background: var(--bg-active);
  color: var(--text-tertiary);
  cursor: default;
}
.send.stop { background: var(--text); color: var(--bg); }

.hint {
  max-width: var(--column);
  margin: 0.5rem auto 0;
  text-align: center;
  font-size: 0.6875rem;
  color: var(--text-tertiary);
}

/* ============================================================ markdown */
.md > *:first-child { margin-top: 0; }
.md > *:last-child { margin-bottom: 0; }
.md p { margin: 0 0 1rem; }
.md h1, .md h2, .md h3, .md h4 {
  margin: 1.75rem 0 0.75rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.md h1 { font-size: 1.5rem; font-family: var(--font-serif); font-weight: 500; }
.md h2 { font-size: 1.25rem; }
.md h3 { font-size: 1.0625rem; }
.md h4 { font-size: 0.9375rem; }
.md ul, .md ol { margin: 0 0 1rem; padding-left: 1.5rem; }
.md li { margin: 0.25rem 0; }
.md li > ul, .md li > ol { margin: 0.25rem 0; }
.md blockquote {
  margin: 0 0 1rem;
  padding: 0.125rem 0 0.125rem 1rem;
  border-left: 2px solid var(--border-strong);
  color: var(--text-secondary);
}
.md hr { margin: 1.5rem 0; border: 0; border-top: 1px solid var(--border); }
.md strong { font-weight: 600; }

.md :not(pre) > code {
  padding: 0.125rem 0.3125rem;
  font-family: var(--font-mono);
  font-size: 0.8125em;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 0.3125rem;
}

.md table {
  width: 100%;
  margin: 0 0 1rem;
  border-collapse: collapse;
  font-size: 0.875rem;
  display: block;
  overflow-x: auto;
}
.md th, .md td {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  text-align: left;
}
.md th { background: var(--bg-code); font-weight: 600; }

/* блок кода */
.code-block {
  margin: 0 0 1rem;
  border: 1px solid var(--border);
  border-radius: 0.625rem;
  overflow: hidden;
  background: var(--bg-code);
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.3125rem 0.5rem 0.3125rem 0.75rem;
  background: var(--bg-code-head);
  border-bottom: 1px solid var(--border);
  font-size: 0.6875rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}
.code-block pre {
  margin: 0;
  padding: 0.875rem 1rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.6;
}
.code-block code { font-family: inherit; background: none; border: 0; padding: 0; }

/* подсветка синтаксиса */
.hljs-comment, .hljs-quote { color: #8d8b83; font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-literal, .hljs-doctag { color: #a54b9c; }
.hljs-string, .hljs-regexp, .hljs-addition, .hljs-attribute { color: #3f7f4f; }
.hljs-number, .hljs-symbol, .hljs-bullet, .hljs-meta { color: #b06020; }
.hljs-title, .hljs-section, .hljs-name, .hljs-selector-id { color: #2f6fb0; }
.hljs-type, .hljs-class .hljs-title, .hljs-built_in { color: #c2603f; }
.hljs-variable, .hljs-template-variable, .hljs-attr { color: #7a5cb8; }
.hljs-deletion { color: #c0392b; }
.hljs-emphasis { font-style: italic; }
.hljs-strong { font-weight: 600; }

:root[data-theme="dark"] .hljs-comment,
:root[data-theme="dark"] .hljs-quote { color: #7c7a73; }
:root[data-theme="dark"] .hljs-keyword,
:root[data-theme="dark"] .hljs-selector-tag,
:root[data-theme="dark"] .hljs-literal { color: #e08fd4; }
:root[data-theme="dark"] .hljs-string,
:root[data-theme="dark"] .hljs-regexp,
:root[data-theme="dark"] .hljs-attribute { color: #9ed49a; }
:root[data-theme="dark"] .hljs-number,
:root[data-theme="dark"] .hljs-symbol,
:root[data-theme="dark"] .hljs-meta { color: #f0b06a; }
:root[data-theme="dark"] .hljs-title,
:root[data-theme="dark"] .hljs-section,
:root[data-theme="dark"] .hljs-name { color: #8ab8e8; }
:root[data-theme="dark"] .hljs-type,
:root[data-theme="dark"] .hljs-built_in { color: #f0a184; }
:root[data-theme="dark"] .hljs-variable,
:root[data-theme="dark"] .hljs-attr { color: #b9a2ea; }

/* ============================================================ всплывашка */
.toast {
  position: fixed;
  left: 50%;
  bottom: 1.75rem;
  transform: translate(-50%, 1rem);
  z-index: 90;
  padding: 0.5rem 0.875rem;
  background: var(--text);
  color: var(--bg);
  border-radius: 0.625rem;
  font-size: 0.8125rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s, transform 0.18s var(--ease);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ================================================================ логин */
.login-page {
  display: grid;
  place-items: center;
  height: 100dvh;
  padding: 1.5rem;
  overflow: auto;
}
.login-card {
  width: 100%;
  max-width: 23rem;
  text-align: center;
}
.login-card .logo { justify-content: center; font-size: 1.625rem; }
.login-card h1 {
  margin: 1.5rem 0 0.375rem;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}
.login-card p { margin: 0 0 1.75rem; color: var(--text-secondary); font-size: 0.875rem; }
.login-card form { display: flex; flex-direction: column; gap: 0.625rem; }
.login-card input {
  width: 100%;
  padding: 0.6875rem 0.875rem;
  font: inherit;
  color: var(--text);
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 0.625rem;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.login-card input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.login-card button[type="submit"] {
  padding: 0.6875rem 0.875rem;
  background: var(--accent);
  color: #fff;
  font-weight: 500;
  border-radius: 0.625rem;
  transition: background 0.12s;
}
.login-card button[type="submit"]:hover { background: var(--accent-hover); }
.login-card button[type="submit"]:disabled { opacity: 0.6; cursor: default; }
.login-error {
  min-height: 1.25rem;
  font-size: 0.8125rem;
  color: #c0392b;
}
:root[data-theme="dark"] .login-error { color: #f0806b; }

/* ============================================================ мобильные */
.scrim {
  position: fixed;
  inset: 0;
  z-index: 25;
  background: rgba(0, 0, 0, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

@media (max-width: 47.99rem) {
  :root { --sidebar-w: 16rem; }
  .sidebar {
    position: fixed;
    z-index: 30;
    top: 0;
    bottom: 0;
    left: 0;
    box-shadow: var(--shadow-lg);
  }
  .app:not(.mobile-open) .sidebar { margin-left: calc(-1 * var(--sidebar-w)); }
  .app:not(.collapsed) #expand { display: inline-flex; }
  .app.mobile-open .scrim { opacity: 1; pointer-events: auto; }
  .thread { padding-left: 0.875rem; padding-right: 0.875rem; }
  .composer-wrap { padding-left: 0.75rem; padding-right: 0.75rem; }
  .msg.user .bubble { max-width: 92%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}