/* ====================================================================
   AI.bakha.me — App styles (auth + chat)
   Используем дизайн-токены из css/style.css
   ==================================================================== */

/* Общие переменные приложения */
:root {
  --sidebar-w: 280px;
  --compose-max-w: 820px;
  --chat-max-w: 880px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

html, body { height: 100%; }

body.app-body {
  background:
    radial-gradient(1200px 600px at 90% -10%, rgba(139, 92, 246, 0.15), transparent 60%),
    radial-gradient(900px 600px at -10% 10%, rgba(41, 151, 255, 0.15), transparent 60%),
    var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
}

/* ============================================
   AUTH PAGES (login/register)
   ============================================ */
.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  overflow-y: auto;
  background:
    radial-gradient(1200px 600px at 90% -10%, rgba(139, 92, 246, 0.18), transparent 60%),
    radial-gradient(900px 600px at -10% 10%, rgba(41, 151, 255, 0.18), transparent 60%),
    var(--bg-primary);
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-lg);
}

.auth-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-weight: 800;
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}
.auth-logo .logo-dot { color: var(--accent-blue); }

.auth-card h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.auth-card .auth-sub {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.field {
  display: block;
  margin-bottom: 1rem;
}
.field label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  font-weight: 500;
}
.input,
.field input,
.field textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color var(--transition-base), background var(--transition-base);
}
.input:focus,
.field input:focus,
.field textarea:focus {
  border-color: var(--border-color-accent);
  background: rgba(255, 255, 255, 0.05);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background: var(--gradient-brand);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base);
  box-shadow: 0 8px 30px rgba(41, 151, 255, 0.25);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 40px rgba(41, 151, 255, 0.35); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.auth-foot {
  margin-top: 1.5rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.auth-foot a {
  color: var(--accent-blue);
  font-weight: 500;
}
.auth-foot a:hover { text-decoration: underline; }

.alert {
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  border: 1px solid;
}
.alert-error {
  background: rgba(236, 72, 153, 0.08);
  border-color: rgba(236, 72, 153, 0.3);
  color: #fbbed8;
}
.alert-success {
  background: rgba(52, 211, 153, 0.08);
  border-color: rgba(52, 211, 153, 0.3);
  color: #a7f3d0;
}
.alert.hidden { display: none; }

/* Поле для 6-значного кода */
.code-input {
  font-family: 'JetBrains Mono', 'SF Mono', Consolas, monospace !important;
  font-size: 1.5rem !important;
  letter-spacing: 0.5em !important;
  text-align: center !important;
  padding-left: 0.5em !important;
  font-weight: 600 !important;
}
.code-input::placeholder {
  letter-spacing: 0.5em;
  color: var(--text-tertiary);
  opacity: 0.5;
}

/* ============================================
   CHAT LAYOUT
   ============================================ */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  height: 100vh;
}

/* Sidebar */
.sidebar {
  background: rgba(10, 10, 18, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.sidebar-head {
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}
.sidebar-head .logo {
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: 1.05rem;
}
.sidebar-head .logo-dot { color: var(--accent-blue); }

.new-chat-btn {
  margin: 1rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-md);
  background: var(--gradient-brand);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: transform var(--transition-base);
}
.new-chat-btn:hover { transform: translateY(-1px); }

.conv-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}
.conv-list::-webkit-scrollbar { width: 6px; }
.conv-list::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.1); border-radius: 3px; }

.conv-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: background var(--transition-base), color var(--transition-base);
  margin-bottom: 0.15rem;
  position: relative;
}
.conv-item:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}
.conv-item.active {
  background: rgba(41, 151, 255, 0.1);
  color: var(--text-primary);
  border-left: 2px solid var(--accent-blue);
}
.conv-item .conv-title {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.conv-item .conv-del {
  opacity: 0;
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 0.2rem;
  border-radius: 4px;
  font-size: 1rem;
  line-height: 1;
}
.conv-item:hover .conv-del { opacity: 1; }
.conv-item .conv-del:hover { color: var(--accent-pink); background: rgba(236, 72, 153, 0.1); }

.sidebar-foot {
  padding: 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient-brand);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
}
.user-info {
  flex: 1;
  min-width: 0;
}
.user-info .user-email {
  font-size: 0.85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}
.user-info .user-quota {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}
.icon-btn {
  background: none;
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-sm);
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color var(--transition-base), background var(--transition-base);
}
.icon-btn:hover { color: var(--text-primary); background: var(--bg-card-hover); }

/* ============================================
   MAIN CHAT
   ============================================ */
.main {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.main-head {
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(5, 5, 7, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.main-head .conv-name {
  flex: 1;
  font-weight: 600;
  font-size: 1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.model-select {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.4rem 0.7rem;
  font-size: 0.85rem;
  cursor: pointer;
}
.model-select:focus { border-color: var(--border-color-accent); }

/* Messages area */
.messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 1rem 1rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}
.messages::-webkit-scrollbar { width: 8px; }
.messages::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.08); border-radius: 4px; }

.messages-inner {
  max-width: var(--chat-max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.empty-state {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--text-secondary);
}
.empty-state h2 {
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}
.empty-state p {
  max-width: 460px;
  margin: 0 auto 2rem;
}
.suggestions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
  max-width: 700px;
  margin: 0 auto;
}
.suggestion {
  padding: 1rem;
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  cursor: pointer;
  text-align: left;
  color: var(--text-primary);
  font-size: 0.88rem;
  transition: border-color var(--transition-base), background var(--transition-base), transform var(--transition-base);
}
.suggestion:hover {
  border-color: var(--border-color-accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}
.suggestion strong { display: block; margin-bottom: 0.2rem; font-weight: 600; }
.suggestion span { color: var(--text-secondary); font-size: 0.82rem; }

/* Message bubbles */
.msg {
  display: flex;
  gap: 0.85rem;
  animation: msgIn 200ms ease-out;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.msg-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.8rem;
}
.msg.user .msg-avatar {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color-light);
  color: var(--text-primary);
}
.msg.assistant .msg-avatar {
  background: var(--gradient-brand);
  color: #fff;
}
.msg-body {
  flex: 1;
  min-width: 0;
}
.msg-author {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.2rem;
}
.msg-content {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-primary);
  word-wrap: break-word;
}
.msg-content p { margin-bottom: 0.6rem; }
.msg-content p:last-child { margin-bottom: 0; }
.msg-content ul, .msg-content ol { margin: 0.5rem 0 0.75rem 1.5rem; }
.msg-content li { margin-bottom: 0.25rem; list-style: disc; }
.msg-content ol li { list-style: decimal; }
.msg-content a { color: var(--accent-blue); text-decoration: underline; }
.msg-content strong { font-weight: 700; }
.msg-content em { font-style: italic; }
.msg-content code:not(pre code) {
  background: rgba(255, 255, 255, 0.08);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  font-size: 0.88em;
}
/* ====== Код-блок: «как в редакторе» ====== */
.code-block {
  margin: 0.75rem 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color-light);
  background: #1a1b26;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.code-block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  border-bottom: 1px solid var(--border-color-light);
}

.code-block-lang {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: lowercase;
  letter-spacing: 0.02em;
}
.code-block-lang::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 8px rgba(41, 151, 255, 0.5);
}
.code-block[data-lang="python"]      .code-block-lang::before { background: #3776ab; box-shadow: 0 0 8px rgba(55, 118, 171, 0.5); }
.code-block[data-lang="javascript"]  .code-block-lang::before,
.code-block[data-lang="js"]          .code-block-lang::before { background: #f7df1e; box-shadow: 0 0 8px rgba(247, 223, 30, 0.5); }
.code-block[data-lang="typescript"]  .code-block-lang::before,
.code-block[data-lang="ts"]          .code-block-lang::before { background: #3178c6; box-shadow: 0 0 8px rgba(49, 120, 198, 0.5); }
.code-block[data-lang="php"]         .code-block-lang::before { background: #777bb4; box-shadow: 0 0 8px rgba(119, 123, 180, 0.5); }
.code-block[data-lang="html"]        .code-block-lang::before { background: #e34c26; box-shadow: 0 0 8px rgba(227, 76, 38, 0.5); }
.code-block[data-lang="css"]         .code-block-lang::before { background: #2965f1; box-shadow: 0 0 8px rgba(41, 101, 241, 0.5); }
.code-block[data-lang="sql"]         .code-block-lang::before { background: #f29111; box-shadow: 0 0 8px rgba(242, 145, 17, 0.5); }
.code-block[data-lang="bash"]        .code-block-lang::before,
.code-block[data-lang="sh"]          .code-block-lang::before { background: #4eaa25; box-shadow: 0 0 8px rgba(78, 170, 37, 0.5); }
.code-block[data-lang="rust"]        .code-block-lang::before { background: #dea584; box-shadow: 0 0 8px rgba(222, 165, 132, 0.5); }
.code-block[data-lang="go"]          .code-block-lang::before { background: #00add8; box-shadow: 0 0 8px rgba(0, 173, 216, 0.5); }
.code-block[data-lang="json"]        .code-block-lang::before { background: #cbcb41; box-shadow: 0 0 8px rgba(203, 203, 65, 0.5); }

.code-block-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.copy-code {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color-light);
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  padding: 0.3rem 0.55rem;
  border-radius: 6px;
  cursor: pointer;
  transition: color var(--transition-base), background var(--transition-base), border-color var(--transition-base);
}
.copy-code:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-color-accent);
}
.copy-code.copied {
  color: var(--accent-green);
  border-color: rgba(52, 211, 153, 0.4);
}
.copy-code svg { width: 12px; height: 12px; }

.code-block pre {
  margin: 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  background: transparent;
  border: none;
  border-radius: 0;
  font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  color: #c0caf5;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}
.code-block pre::-webkit-scrollbar { height: 8px; }
.code-block pre::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.12); border-radius: 4px; }
.code-block pre code {
  background: none;
  padding: 0;
  font: inherit;
  color: inherit;
  white-space: pre;
}

/* Подгоняем тему atom-one-dark из highlight.js под нашу палитру */
.hljs { background: transparent !important; padding: 0 !important; color: #c0caf5; }

.msg-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.msg-attachment {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.7rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.typing-dots {
  display: inline-flex;
  gap: 4px;
  padding: 0.3rem 0;
}
.typing-dots span {
  width: 6px;
  height: 6px;
  background: var(--text-secondary);
  border-radius: 50%;
  animation: typing 1.4s infinite ease-in-out;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
  0%, 60%, 100% { transform: scale(0.7); opacity: 0.4; }
  30%           { transform: scale(1);    opacity: 1; }
}

/* Compose area */
.compose-wrap {
  padding: 0.75rem 1rem 1.5rem;
  background: linear-gradient(180deg, transparent, var(--bg-primary) 30%);
}
.compose {
  max-width: var(--compose-max-w);
  margin: 0 auto;
  background: var(--bg-glass);
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: border-color var(--transition-base);
}
.compose:focus-within {
  border-color: var(--border-color-accent);
}

.compose-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
}
.compose-attachments:empty { display: none; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.5rem 0.35rem 0.7rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color-light);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--text-primary);
}
.chip .chip-x {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}
.chip .chip-x:hover { color: var(--accent-pink); }

.compose-row {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
}
.compose-textarea {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  resize: none;
  min-height: 40px;
  max-height: 240px;
  padding: 0.5rem;
  line-height: 1.5;
}
.compose-textarea::placeholder { color: var(--text-tertiary); }

.compose-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.compose-btn {
  background: none;
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-sm);
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color var(--transition-base), border-color var(--transition-base);
}
.compose-btn:hover { color: var(--text-primary); border-color: var(--border-color-accent); }

.send-btn {
  background: var(--gradient-brand);
  border: none;
  border-radius: var(--radius-sm);
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  cursor: pointer;
  color: #fff;
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.send-btn:hover { transform: translateY(-1px); }
.send-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.compose-foot {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-tertiary);
  margin-top: 0.6rem;
}

/* Mobile */
.menu-toggle-mobile { display: none; }

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--sidebar-w);
    z-index: 50;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
  }
  .sidebar.open { transform: translateX(0); }
  .menu-toggle-mobile {
    display: grid;
    place-items: center;
    background: none;
    border: 1px solid var(--border-color-light);
    border-radius: var(--radius-sm);
    width: 36px; height: 36px;
    color: var(--text-primary);
    cursor: pointer;
  }
  .sidebar-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 40;
    display: none;
  }
  .sidebar-overlay.open { display: block; }
}

/* Toast */
.toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color-light);
  color: var(--text-primary);
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  box-shadow: var(--shadow-md);
  z-index: 100;
  animation: toastIn 200ms ease-out;
}
.toast.error { border-color: rgba(236, 72, 153, 0.4); }
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to   { opacity: 1; transform: translate(-50%, 0);    }
}