:root {
    --bg-main: #212121; --bg-panel: #171717; --bg-input: #2f2f2f;
    --text-main: #ececec; --text-muted: #b4b4b4; --border: #424242;
    --accent: #10b981; --accent-hover: #059669; --danger: #ef4444;
    --msg-user: #2f2f2f; --msg-ai: transparent; --hover-bg: #2f2f2f;
    --code-bg: #1e293b; --code-text: #e2e8f0;
    --inline-code-bg: rgba(255,255,255,0.1); --inline-code-text: #38bdf8;
    --chat-font-size: 15px; --chat-line-height: 1.6;
}
[data-theme="light"] {
    --bg-main: #ffffff; --bg-panel: #f9f9f9; --bg-input: #f4f4f4;
    --text-main: #0d0d0d; --text-muted: #666666; --border: #e5e5e5;
    --accent: #10b981; --accent-hover: #059669; --danger: #ef4444;
    --msg-user: #f4f4f4; --msg-ai: transparent; --hover-bg: #e5e5e5;
    --code-bg: #f1f5f9; --code-text: #0f172a;
    --inline-code-bg: rgba(0,0,0,0.05); --inline-code-text: #0284c7;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100dvh; font-family: 'Inter', sans-serif; background: var(--bg-main); color: var(--text-main); overflow: hidden; transition: background 0.3s, color 0.3s; }
.app-container { display: flex; height: 100dvh; width: 100vw; overflow: hidden; }

.sidebar { width: 280px; background: var(--bg-panel); display: flex; flex-direction: column; border-right: 1px solid var(--border); transition: transform 0.3s ease, background 0.3s; z-index: 100; flex-shrink: 0; }
.sidebar-header { padding: 20px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 18px; font-weight: 600; color: var(--text-main); display: flex; align-items: center; gap: 10px; }

.nav-menu { padding: 0 15px 15px 15px; display: flex; flex-direction: column; gap: 5px; }
.nav-btn { background: transparent; border: none; color: var(--text-main); padding: 10px 12px; border-radius: 8px; cursor: pointer; text-align: left; font-size: 14px; display: flex; align-items: center; gap: 10px; transition: 0.2s; text-decoration: none; font-weight: 500; }
.nav-btn:hover { background: var(--hover-bg); }
.nav-btn svg { width: 18px; height: 18px; fill: currentColor; }

.history-container { flex: 1; overflow-y: auto; padding: 10px 15px; border-top: 1px solid var(--border); }
.history-title { font-size: 12px; font-weight: 600; color: var(--text-muted); margin-bottom: 10px; padding-left: 5px; text-transform: uppercase; letter-spacing: 0.5px; }
.history-item { display: flex; justify-content: space-between; align-items: center; padding: 10px; border-radius: 8px; cursor: pointer; transition: 0.2s; font-size: 13px; color: var(--text-main); margin-bottom: 2px; }
.history-item:hover { background: var(--hover-bg); }
.history-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; margin-right: 10px; }
.history-del { background: none; border: none; color: var(--text-muted); cursor: pointer; opacity: 0; transition: 0.2s; padding: 5px; }
.history-item:hover .history-del { opacity: 1; }
.history-del:hover { color: var(--danger); }

.main-area { flex: 1; display: flex; flex-direction: column; position: relative; min-width: 0; background: var(--bg-main); }
.chat-header { padding: 10px 20px; display: flex; justify-content: space-between; align-items: center; z-index: 10; border-bottom: 1px solid var(--border); background: var(--bg-main); }
.header-left { display: flex; align-items: center; gap: 15px; }
.model-selector select { background: var(--bg-input); color: var(--text-main); border: 1px solid var(--border); padding: 6px 10px; border-radius: 6px; font-size: 14px; font-weight: 600; outline: none; cursor: pointer; }

.text-settings { display: flex; align-items: center; gap: 4px; background: var(--bg-input); padding: 4px 8px; border-radius: 8px; border: 1px solid var(--border); }
.text-settings button { background: none; border: none; color: var(--text-muted); font-size: 13px; font-weight: 600; cursor: pointer; padding: 2px 6px; border-radius: 4px; transition: 0.2s; }
.text-settings button:hover { color: var(--text-main); background: var(--hover-bg); }
.text-settings .divider { width: 1px; height: 14px; background: var(--border); margin: 0 4px; }

.chat-box { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; scroll-behavior: smooth; }
.chat-content-wrapper { max-width: 800px; margin: 0 auto; width: 100%; display: flex; flex-direction: column; gap: 24px; padding-bottom: 20px; }

.message { font-size: var(--chat-font-size); line-height: var(--chat-line-height); position: relative; word-wrap: break-word; display: flex; flex-direction: column; }
.user-msg { align-self: flex-end; background: var(--msg-user); padding: 12px 20px; border-radius: 20px; max-width: 80%; }
.ai-msg { align-self: flex-start; background: var(--msg-ai); padding: 10px 0; width: 100%; }

.msg-header { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 13px; font-weight: 600; color: var(--text-main); }
.msg-delete { background: none; border: none; color: var(--text-muted); cursor: pointer; transition: 0.2s; padding: 0 5px; opacity: 0; }
.message:hover .msg-delete { opacity: 1; }
.msg-delete:hover { color: var(--danger); }
.chat-img { max-width: 100%; max-height: 300px; border-radius: 8px; margin-top: 10px; display: block; }

.markdown-content { font-size: var(--chat-font-size); line-height: var(--chat-line-height); color: var(--text-main); }
.markdown-content p { margin-bottom: 0.8em; }
.markdown-content p:last-child { margin-bottom: 0; }
.markdown-content h1, .markdown-content h2, .markdown-content h3 { margin-top: 1.2em; margin-bottom: 0.5em; font-weight: 600; color: var(--text-main); }
.markdown-content ul, .markdown-content ol { margin-left: 20px; margin-bottom: 0.8em; }
.markdown-content li { margin-bottom: 0.3em; }
.markdown-content strong { font-weight: 600; color: var(--text-main); }
.markdown-content em { font-style: italic; }
.markdown-content blockquote { border-left: 4px solid var(--accent); padding-left: 12px; margin: 0.8em 0; color: var(--text-muted); }
.markdown-content code { font-family: monospace; background: var(--inline-code-bg); color: var(--inline-code-text); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }
.markdown-content pre { background: var(--code-bg); padding: 12px; border-radius: 8px; overflow-x: auto; margin: 0.8em 0; border: 1px solid var(--border); }
.markdown-content pre code { background: transparent; padding: 0; color: var(--code-text); }
.markdown-content a { color: var(--accent); text-decoration: none; font-weight: 500; transition: 0.2s; }
.markdown-content a:hover { text-decoration: underline; }

.input-container { padding: 0 20px 30px 20px; background: transparent; flex-shrink: 0; }
.input-wrapper { max-width: 800px; margin: 0 auto; display: flex; align-items: flex-end; gap: 10px; background: var(--bg-input); padding: 12px 15px; border-radius: 24px; border: 1px solid var(--border); transition: 0.3s; box-shadow: 0 5px 20px rgba(0,0,0,0.05); }
.input-wrapper:focus-within { border-color: var(--text-muted); }
.input-wrapper.dragover { border-color: var(--accent); background: var(--hover-bg); box-shadow: 0 0 15px rgba(16, 185, 129, 0.2); }

.attach-btn { background: none; border: none; color: var(--text-muted); cursor: pointer; padding: 8px; border-radius: 50%; transition: 0.2s; display: flex; align-items: center; justify-content: center; }
.attach-btn:hover { color: var(--text-main); background: var(--hover-bg); }

textarea { flex: 1; background: transparent; border: none; color: var(--text-main); font-family: inherit; font-size: 16px; resize: none; outline: none; height: 24px; min-height: 24px; max-height: 200px; padding: 0; line-height: 24px; overflow-y: auto; }

.send-btn { background: var(--text-main); color: var(--bg-main); border: none; width: 36px; height: 36px; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: 0.2s; flex-shrink: 0; }
.send-btn:hover { opacity: 0.8; transform: scale(1.05); }
.send-btn:disabled { background: var(--border); color: var(--text-muted); cursor: not-allowed; transform: none; }

.file-badge { display: flex; align-items: center; gap: 8px; padding: 6px 12px; background: var(--bg-input); border: 1px solid var(--border); border-radius: 8px; font-size: 13px; color: var(--accent); position: relative; }
.file-badge img { height: 24px; width: 24px; object-fit: cover; border-radius: 4px; }
.file-badge .remove-btn { background: var(--danger); color: white; border: none; border-radius: 50%; width: 18px; height: 18px; cursor: pointer; font-size: 10px; display: flex; align-items: center; justify-content: center; margin-left: 5px; transition: 0.2s; }
.file-badge .remove-btn:hover { transform: scale(1.1); }

.modal-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); backdrop-filter: blur(3px); z-index: 1000; align-items: center; justify-content: center; }
.modal { background: var(--bg-panel); width: 90%; max-width: 500px; border-radius: 16px; border: 1px solid var(--border); overflow: hidden; display: flex; flex-direction: column; max-height: 90vh; box-shadow: 0 20px 50px rgba(0,0,0,0.3); }
.modal-header { padding: 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.modal-header h3 { font-weight: 600; }
.close-modal { background: none; border: none; color: var(--text-muted); font-size: 24px; cursor: pointer; }
.close-modal:hover { color: var(--text-main); }
.modal-body { padding: 20px; overflow-y: auto; }

.form-group { margin-bottom: 15px; }
.form-control { width: 100%; background: var(--bg-input); border: 1px solid var(--border); color: var(--text-main); padding: 12px; border-radius: 8px; outline: none; font-family: inherit; }
.form-control:focus { border-color: var(--accent); }
textarea.form-control { min-height: 150px; resize: vertical; }

.btn-primary { background: var(--accent); color: white; border: none; padding: 12px 20px; border-radius: 8px; cursor: pointer; font-weight: 500; width: 100%; transition: 0.2s; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); padding: 10px; border-radius: 8px; cursor: pointer; width: 100%; transition: 0.2s; }
.btn-danger:hover { background: var(--danger); color: white; }

.model-item { display: flex; justify-content: space-between; align-items: center; background: var(--bg-input); padding: 10px 15px; border-radius: 8px; margin-bottom: 8px; }
.k-item { background: var(--bg-input); border-radius: 8px; margin-bottom: 10px; overflow: hidden; }
.k-header { padding: 15px; display: flex; justify-content: space-between; cursor: pointer; font-weight: 500; }
.k-header:hover { background: var(--hover-bg); }
.k-body { padding: 15px; display: none; border-top: 1px solid var(--border); }

.typing-indicator { color: var(--text-muted); font-size: 13px; display: none; padding: 0 20px 10px 20px; max-width: 800px; margin: 0 auto; width: 100%; }

.mobile-menu-btn { display: none; background: none; border: none; color: var(--text-main); font-size: 24px; cursor: pointer; margin-right: 15px; }
.sidebar-overlay { display: none; position: fixed; top:0; left:0; width:100%; height:100%; background: rgba(0,0,0,0.5); z-index: 90; }

@media (max-width: 768px) {
    .sidebar { position: absolute; transform: translateX(-100%); height: 100dvh; }
    .sidebar.active { transform: translateX(0); }
    .sidebar-overlay.active { display: block; }
    .mobile-menu-btn { display: block; }
    .user-msg { max-width: 95%; }
    .input-container { padding: 10px; padding-bottom: max(10px, env(safe-area-inset-bottom)); }
    .input-wrapper { border-radius: 16px; }
    .history-del { opacity: 1; } 
    .msg-delete { opacity: 1; }
    .text-settings { display: none; } 
}
/* === ТАБЛИЦЫ В ОТВЕТАХ МОДЕЛИ === */

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1em 0;
    font-size: 0.95em;
    border: 1px solid var(--border);
}

.markdown-content th,
.markdown-content td {
    border: 1px solid var(--border);
    padding: 8px 10px;
    text-align: left;
    vertical-align: top;
}

.markdown-content th {
    background: var(--bg-input);
    font-weight: 600;
}

.markdown-content tr:nth-child(even) td {
    background: rgba(255, 255, 255, 0.03);
}

[data-theme="light"] .markdown-content tr:nth-child(even) td {
    background: rgba(0, 0, 0, 0.03);
}

/* Чтобы широкие таблицы не ломали мобильный экран */
.markdown-content {
    overflow-x: auto;
}

.markdown-content table code {
    white-space: nowrap;
}