/* ================================================================
   AI Chat Widget — Floating Chatbot (Intercom/Drift-style)
   Prefix: ghw- (Grand Holding Widget)
   Z-index: 10000 (above HTMX progress bar 9999, navbar 1040)
   ================================================================ */

/* ── Floating Action Button ─────────────────────────────────── */

.ghw-fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: #fff;
    border: none;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
    cursor: pointer;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.2s ease;
}

.ghw-fab:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

.ghw-fab:active {
    transform: scale(0.95);
}

.ghw-fab i {
    font-size: 24px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Icon toggle: chat-dots when closed, X when open */
.ghw-fab.ghw-open .ghw-icon-chat { display: none; }
.ghw-fab.ghw-open .ghw-icon-close { display: inline; }
.ghw-fab:not(.ghw-open) .ghw-icon-close { display: none; }
.ghw-fab:not(.ghw-open) .ghw-icon-chat { display: inline; }

/* ── Unread Badge ───────────────────────────────────────────── */

.ghw-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 20px;
    height: 20px;
    border-radius: 10px;
    background: #ef4444;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    display: none;
    align-items: center;
    justify-content: center;
    border: 2px solid #fff;
    padding: 0 4px;
    line-height: 1;
}

.ghw-badge.ghw-visible {
    display: flex;
    animation: ghwBadgePop 0.35s ease;
}

@keyframes ghwBadgePop {
    0% { transform: scale(0); }
    60% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* ── Chat Popup ─────────────────────────────────────────────── */

.ghw-popup {
    position: fixed;
    bottom: 88px;
    right: 20px;
    width: 384px;
    height: 560px;
    max-height: calc(100vh - 120px);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15),
                0 4px 12px rgba(0, 0, 0, 0.08);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    /* Hidden by default */
    opacity: 0;
    transform: translateY(16px) scale(0.96);
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.ghw-popup.ghw-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* ── Header ─────────────────────────────────────────────────── */

.ghw-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: linear-gradient(135deg, #1e293b, #334155);
    color: #fff;
    flex-shrink: 0;
}

.ghw-header-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ghw-header-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.ghw-header-info h6 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
}

.ghw-header-info small {
    font-size: 11px;
    opacity: 0.7;
}

.ghw-header-actions {
    display: flex;
    gap: 4px;
}

.ghw-header-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: background 0.15s ease;
}

.ghw-header-btn:hover {
    background: rgba(255, 255, 255, 0.22);
}

/* ── Messages Area ──────────────────────────────────────────── */

.ghw-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    scroll-behavior: smooth;
}

/* ── Welcome Screen ─────────────────────────────────────────── */

.ghw-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 24px 12px 12px;
}

.ghw-welcome-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.ghw-welcome-icon i {
    font-size: 20px;
    color: #fff;
}

.ghw-welcome h6 {
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 4px;
    font-size: 15px;
}

.ghw-welcome p {
    color: #64748b;
    font-size: 12px;
    margin-bottom: 16px;
    line-height: 1.5;
}

/* ── Suggestion Chips ───────────────────────────────────────── */

.ghw-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
    max-width: 340px;
}

.ghw-chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    background: #fff;
    color: #475569;
    font-size: 11.5px;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
    line-height: 1.3;
}

.ghw-chip:hover {
    background: #f1f5f9;
    border-color: #3b82f6;
    color: #3b82f6;
}

.ghw-chip i {
    margin-right: 4px;
    font-size: 12px;
}

/* ── Message Bubbles ────────────────────────────────────────── */

.ghw-msg {
    display: flex;
    margin-bottom: 10px;
    animation: ghwFadeIn 0.2s ease;
}

@keyframes ghwFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.ghw-msg-user { justify-content: flex-end; }
.ghw-msg-assistant { justify-content: flex-start; }

.ghw-bubble {
    max-width: 82%;
    padding: 10px 12px;
    line-height: 1.5;
    font-size: 13px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.ghw-msg-user .ghw-bubble {
    background: #3b82f6;
    color: #fff;
    border-radius: 16px 16px 4px 16px;
}

.ghw-msg-assistant .ghw-bubble {
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    border-radius: 16px 16px 16px 4px;
    color: #1e293b;
}

/* ── Markdown in assistant bubbles ──────────────────────────── */

.ghw-msg-assistant .ghw-bubble h1,
.ghw-msg-assistant .ghw-bubble h2,
.ghw-msg-assistant .ghw-bubble h3,
.ghw-msg-assistant .ghw-bubble h4 {
    font-size: 13px;
    font-weight: 700;
    margin: 8px 0 4px 0;
    color: #1e293b;
}

.ghw-msg-assistant .ghw-bubble h1:first-child,
.ghw-msg-assistant .ghw-bubble h2:first-child,
.ghw-msg-assistant .ghw-bubble h3:first-child {
    margin-top: 0;
}

.ghw-msg-assistant .ghw-bubble p { margin: 0 0 6px 0; }
.ghw-msg-assistant .ghw-bubble p:last-child { margin-bottom: 0; }

.ghw-msg-assistant .ghw-bubble ul,
.ghw-msg-assistant .ghw-bubble ol {
    margin: 4px 0 6px 0;
    padding-left: 18px;
}

.ghw-msg-assistant .ghw-bubble li { margin-bottom: 2px; }

.ghw-msg-assistant .ghw-bubble table {
    width: 100%;
    border-collapse: collapse;
    margin: 6px 0;
    font-size: 11.5px;
}

.ghw-msg-assistant .ghw-bubble th,
.ghw-msg-assistant .ghw-bubble td {
    padding: 4px 6px;
    border: 1px solid #cbd5e1;
    text-align: left;
}

.ghw-msg-assistant .ghw-bubble th {
    background: #e2e8f0;
    font-weight: 600;
}

.ghw-msg-assistant .ghw-bubble code {
    background: #e2e8f0;
    padding: 1px 4px;
    border-radius: 3px;
    font-size: 12px;
}

.ghw-msg-assistant .ghw-bubble pre {
    background: #1e293b;
    color: #e2e8f0;
    padding: 8px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 6px 0;
    font-size: 11.5px;
}

.ghw-msg-assistant .ghw-bubble pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

.ghw-msg-assistant .ghw-bubble strong { font-weight: 600; }

/* ── Typing Indicator ───────────────────────────────────────── */

.ghw-typing {
    display: flex;
    align-items: center;
    gap: 3px;
    padding: 6px 0;
}

.ghw-typing-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #94a3b8;
    animation: ghwBounce 1.2s infinite;
}

.ghw-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.ghw-typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes ghwBounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-5px); }
}

/* ── Error Message ──────────────────────────────────────────── */

.ghw-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
    border-radius: 10px;
    padding: 8px 10px;
    max-width: 82%;
    font-size: 12.5px;
}

/* ── Tool Status Bar ────────────────────────────────────────── */

.ghw-tool-status {
    padding: 6px 16px;
    background: #eff6ff;
    border-top: 1px solid #dbeafe;
    color: #3b82f6;
    font-size: 12px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

/* ── Input Area ─────────────────────────────────────────────── */

.ghw-input-area {
    border-top: 1px solid #e2e8f0;
    padding: 10px 12px;
    background: #fff;
    flex-shrink: 0;
}

.ghw-input-group {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 4px 4px 4px 12px;
    transition: border-color 0.15s ease;
}

.ghw-input-group:focus-within {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.ghw-input {
    flex: 1;
    border: none;
    background: transparent;
    resize: none;
    padding: 4px 0;
    font-size: 13px;
    line-height: 1.4;
    max-height: 80px;
    overflow-y: auto;
    outline: none;
    font-family: inherit;
}

.ghw-input::placeholder { color: #94a3b8; }

.ghw-send-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    background: #3b82f6;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
    flex-shrink: 0;
    font-size: 13px;
}

.ghw-send-btn:hover:not(:disabled) { background: #2563eb; }
.ghw-send-btn:disabled { background: #cbd5e1; cursor: not-allowed; }

/* ── Footer ─────────────────────────────────────────────────── */

.ghw-footer {
    text-align: center;
    padding: 4px 0 6px;
    font-size: 10px;
    color: #94a3b8;
    background: #fff;
    border-top: 1px solid #f1f5f9;
    flex-shrink: 0;
}

/* ── Scroll-to-Top Conflict ─────────────────────────────────── */

body.ghw-chat-visible .gh-scroll-top {
    right: 84px;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body.ghw-chat-open .gh-scroll-top {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

/* ── Mobile ─────────────────────────────────────────────────── */

@media (max-width: 480px) {
    .ghw-popup {
        bottom: 0;
        right: 0;
        left: 0;
        width: 100%;
        height: 85vh;
        max-height: 85vh;
        border-radius: 16px 16px 0 0;
    }

    .ghw-fab {
        bottom: 16px;
        right: 16px;
    }

    body.ghw-chat-open .ghw-fab {
        display: none;
    }

    body.ghw-chat-open .gh-scroll-top {
        display: none;
    }
}