/* ═══════════════════════════════════════════════
   Chat Page & Site Navigation — OLYMP КДЛ
   ═══════════════════════════════════════════════ */

/* ── Touch & A11y — global ── */
.cp-send-btn, .toolbar-btn, .audience-card,
.quick-chip, .nav-tab, .cp-msg-copy-btn {
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    user-select: none;
}

.cp-messages {
    overscroll-behavior: contain;
}

/* ── Site Navigation Tabs (shared: index + chat) ── */

.site-nav {
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 90;
}

.site-nav .nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 18px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast);
    white-space: nowrap;
    font-family: var(--font-family);
}

.nav-tab:hover { color: var(--color-primary); }

.nav-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    font-weight: 600;
}

.nav-tab-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-success);
    animation: pulse-dot 2.5s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}

/* ── Chat Page Body ── */

body.chat-page {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* ── Workspace Layout ── */

.chat-workspace {
    display: flex;
    flex: 1;
    overflow: hidden;
    background: var(--color-surface);
}

/* ── Sidebar ── */

.chat-sidebar {
    width: 252px;
    min-width: 252px;
    background: #fff;
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 20px 14px;
    gap: 24px;
}

.sidebar-section-title {
    font-size: 10.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--color-text-subtle);
    margin-bottom: 10px;
}

/* Audience cards */
.audience-cards {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.audience-card {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 11px;
    border-radius: var(--radius-md);
    border: 1.5px solid var(--color-border);
    background: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    text-align: left;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    font-family: var(--font-family);
}

.audience-card:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: #f0f7ff;
}

.audience-card.active {
    border-color: var(--color-primary);
    background: #e8f3fc;
    color: var(--color-primary);
    font-weight: 600;
}

.aud-icon { font-size: 17px; line-height: 1; flex-shrink: 0; }

/* Quick chips */
.quick-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.quick-chip {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    border: 1.5px solid var(--color-border);
    background: white;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-text-muted);
    font-family: var(--font-family);
    white-space: nowrap;
}

.quick-chip:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: #f0f7ff;
}

.quick-chip:active { transform: scale(0.96); }

/* Keyboard hint */
.sidebar-hint {
    margin-top: auto;
    padding: 10px 12px;
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    font-size: 11px;
    color: var(--color-text-subtle);
    text-align: center;
    line-height: 1.8;
}

.sidebar-hint kbd {
    display: inline-flex;
    align-items: center;
    padding: 1px 5px;
    border-radius: 3px;
    border: 1px solid var(--color-border);
    background: white;
    font-family: monospace;
    font-size: 10px;
    color: var(--color-text-muted);
    box-shadow: 0 1px 0 var(--color-border);
}

/* ── Chat Main Area ── */

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: #fff;
}

/* Toolbar */
.chat-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 24px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface);
    flex-shrink: 0;
    min-height: 48px;
}

.toolbar-audience-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 4px 12px 4px 9px;
    border-radius: var(--radius-pill);
    background: #e8f3fc;
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 600;
    font-family: var(--font-family);
}

.toolbar-audience-badge::before {
    content: "";
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--color-primary);
    flex-shrink: 0;
}

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

.toolbar-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: white;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
}

.toolbar-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: #f0f7ff;
}

/* ── Messages area ── */

.cp-messages {
    flex: 1;
    overflow-y: auto;
    padding: 28px 40px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    scroll-behavior: smooth;
}

/* Welcome state */
.cp-welcome {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-text-muted);
    padding: 40px;
    gap: 14px;
    animation: fadeUp 300ms ease;
}

.cp-welcome-icon {
    font-size: 52px;
    line-height: 1;
    opacity: 0.6;
}

.cp-welcome h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.cp-welcome p {
    font-size: 14px;
    margin: 0;
    max-width: 320px;
    line-height: 1.6;
}

/* Message rows */
.cp-msg {
    display: flex;
    flex-direction: column;
    max-width: 78%;
    gap: 4px;
    animation: fadeUp 180ms ease;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(5px); }
    to   { opacity: 1; transform: translateY(0); }
}

.cp-msg.user { align-self: flex-end; }
.cp-msg.bot  { align-self: flex-start; }

.cp-msg-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0 4px;
}

.cp-msg.user .cp-msg-label { text-align: right; }

.cp-msg-bubble {
    padding: 11px 15px;
    border-radius: var(--radius-lg);
    font-size: 14px;
    line-height: 1.65;
    word-break: break-word;
}

.cp-msg.user .cp-msg-bubble {
    background: var(--color-primary);
    color: white;
    border-bottom-right-radius: var(--radius-sm);
}

.cp-msg.bot .cp-msg-bubble {
    background: var(--color-surface);
    color: var(--color-text);
    border-bottom-left-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

/* Markdown inside bot bubble */
.cp-msg.bot .cp-msg-bubble h2,
.cp-msg.bot .cp-msg-bubble h3 {
    font-size: 14px;
    font-weight: 700;
    margin: 14px 0 5px;
    color: var(--color-primary);
}

.cp-msg.bot .cp-msg-bubble h2:first-child,
.cp-msg.bot .cp-msg-bubble h3:first-child { margin-top: 0; }

.cp-msg.bot .cp-msg-bubble p  { margin: 6px 0; }
.cp-msg.bot .cp-msg-bubble p:first-child { margin-top: 0; }
.cp-msg.bot .cp-msg-bubble p:last-child  { margin-bottom: 0; }

.cp-msg.bot .cp-msg-bubble ul,
.cp-msg.bot .cp-msg-bubble ol { margin: 5px 0 5px 18px; }

.cp-msg.bot .cp-msg-bubble li { margin: 3px 0; }

.cp-msg.bot .cp-msg-bubble strong { font-weight: 600; }

.cp-msg.bot .cp-msg-bubble hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 10px 0;
}

.cp-msg.bot .cp-msg-bubble blockquote {
    border-left: 3px solid var(--color-secondary);
    padding: 6px 12px;
    color: var(--color-text-muted);
    margin: 8px 0;
    font-style: italic;
    background: rgba(43,168,160,0.05);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Per-message copy button (appears on hover) */
.cp-msg-actions {
    display: flex;
    gap: 5px;
    margin-top: 3px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.cp-msg:hover .cp-msg-actions { opacity: 1; }

.cp-msg-copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: white;
    font-size: 11px;
    color: var(--color-text-subtle);
    cursor: pointer;
    font-family: var(--font-family);
    transition: all var(--transition-fast);
}

.cp-msg-copy-btn:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: #f0f7ff;
}

/* Typing indicator */
.cp-typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 13px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    border-bottom-left-radius: var(--radius-sm);
    align-self: flex-start;
    width: fit-content;
}

.cp-typing-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--color-text-subtle);
    animation: typeBounce 1.4s infinite ease-in-out;
}

.cp-typing-dot:nth-child(2) { animation-delay: 0.16s; }
.cp-typing-dot:nth-child(3) { animation-delay: 0.32s; }

@keyframes typeBounce {
    0%, 80%, 100% { transform: translateY(0);   opacity: 0.35; }
    40%           { transform: translateY(-7px); opacity: 1; }
}

/* ── Mobile chips strip (hidden on desktop, visible on mobile) ── */

.cp-chips-mobile {
    display: none;
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
    padding: 10px 16px;
    gap: 8px;
    border-bottom: 1px solid var(--color-border);
    background: #fff;
    flex-shrink: 0;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    scroll-snap-type: x proximity;
}

.cp-chips-mobile::-webkit-scrollbar { display: none; }

.cp-chips-mobile .quick-chip {
    display: inline-flex;
    scroll-snap-align: start;
    flex-shrink: 0;
    padding: 6px 14px;
    min-height: 36px;
}

/* Chip skeleton loader */
.chip-skeleton {
    display: inline-flex;
    width: 64px;
    height: 30px;
    border-radius: var(--radius-pill);
    background: linear-gradient(
        90deg,
        var(--color-border) 25%,
        #f0f4f8 50%,
        var(--color-border) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    flex-shrink: 0;
}

.chip-skeleton:nth-child(2) { width: 48px; }
.chip-skeleton:nth-child(3) { width: 72px; }
.chip-skeleton:nth-child(4) { width: 56px; }
.chip-skeleton:nth-child(5) { width: 80px; }

@keyframes shimmer {
    from { background-position: 200% 0; }
    to   { background-position: -200% 0; }
}

/* ── Input Area ── */

.cp-input-area {
    border-top: 1px solid var(--color-border);
    padding: 14px 24px;
    padding-bottom: max(14px, calc(env(safe-area-inset-bottom) + 8px));
    background: #fff;
    flex-shrink: 0;
}

.cp-disclaimer {
    font-size: 11px;
    color: var(--color-text-subtle);
    margin-bottom: 10px;
    padding: 7px 12px;
    background: #fffbeb;
    border-radius: var(--radius-sm);
    border: 1px solid #fde68a;
    line-height: 1.5;
}

.cp-input-row {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.cp-input {
    flex: 1;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    border: 1.5px solid var(--color-border);
    font-size: 14px;
    font-family: var(--font-family);
    resize: none;
    line-height: 1.55;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    max-height: 120px;
    overflow-y: auto;
    color: var(--color-text);
    background: white;
}

.cp-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 119, 200, 0.08);
}

.cp-input::placeholder { color: var(--color-text-subtle); }

.cp-send-btn {
    width: 40px; height: 40px;
    border-radius: var(--radius-md);
    border: none;
    background: var(--color-primary);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.cp-send-btn:hover:not(:disabled) { background: var(--color-primary-hover); }
.cp-send-btn:active:not(:disabled) { transform: scale(0.95); }

.cp-send-btn:disabled {
    background: var(--color-border);
    cursor: not-allowed;
}

/* ── Responsive ── */

@media (max-width: 860px) {
    .chat-sidebar { display: none; }
    .cp-messages  { padding: 20px; }
    .cp-msg       { max-width: 90%; }
    .cp-input-area {
        padding: 12px 16px;
        padding-bottom: max(12px, calc(env(safe-area-inset-bottom) + 8px));
    }
    .chat-toolbar  { padding: 10px 16px; }

    /* Show mobile chips strip */
    .cp-chips-mobile { display: flex; }

    /* Toolbar tap targets */
    .toolbar-btn {
        padding: 8px 12px;
        min-height: 40px;
    }

    /* Slightly larger quick chips */
    .quick-chip {
        padding: 7px 12px;
        min-height: 36px;
    }
}

@media (max-width: 480px) {
    /* iOS zoom fix */
    .cp-input { font-size: 16px; }

    /* Full-width nav tabs */
    .site-nav .nav-container { padding: 0 12px; }
    .nav-tab { padding: 11px 14px; font-size: 13px; }

    /* Chat layout */
    .cp-messages { padding: 14px 12px; gap: 14px; }
    .cp-msg      { max-width: 93%; }

    /* Toolbar compact */
    .chat-toolbar  { padding: 8px 12px; min-height: 44px; flex-wrap: wrap; gap: 6px; }
    .toolbar-audience-badge { font-size: 12px; padding: 3px 10px 3px 8px; }
    .toolbar-actions { gap: 4px; }
    .toolbar-btn { padding: 6px 10px; font-size: 11px; min-height: 36px; }

    /* Input area */
    .cp-input-area { padding: 10px 12px; padding-bottom: max(10px, calc(env(safe-area-inset-bottom) + 6px)); }
    .cp-disclaimer { font-size: 10.5px; padding: 6px 10px; }
    .cp-send-btn   { width: 44px; height: 44px; }

    /* Messages */
    .cp-msg-bubble { padding: 10px 12px; font-size: 13.5px; }
    .cp-msg-label  { font-size: 10px; }

    /* Mobile chips strip */
    .cp-chips-mobile { padding: 8px 12px; }
    .cp-chips-mobile .quick-chip { font-size: 12px; padding: 6px 12px; }
}