/* ============================================================
   VendeeX Conversational Product Refinement
   Chat panel for refining search results without new search
   ============================================================ */

.refinement-chat {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    margin-bottom: 24px;
    overflow: hidden;
    transition: box-shadow 0.2s ease;
}

.refinement-chat:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* ============================================================
   Header
   ============================================================ */
.refinement-chat__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-bottom: 1px solid #bae6fd;
    cursor: pointer;
    user-select: none;
}

.refinement-chat__header-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.refinement-chat__icon {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, #215274, #2BB673);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.refinement-chat__title {
    font-size: 15px;
    font-weight: 700;
    color: #0c4a6e;
}

.refinement-chat__count {
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    background: #dbeafe;
    color: #1d4ed8;
}

.refinement-chat__header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.refinement-chat__reset {
    padding: 4px 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: white;
    font-size: 12px;
    font-weight: 600;
    color: #6b7280;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s ease;
    display: none; /* hidden until a refinement is made */
}

.refinement-chat__reset--visible {
    display: inline-flex;
}

.refinement-chat__reset:hover {
    border-color: #215274;
    color: #215274;
}

.refinement-chat__toggle {
    background: none;
    border: none;
    color: #0369a1;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.refinement-chat--collapsed .refinement-chat__toggle {
    transform: rotate(-90deg);
}

/* ============================================================
   Body (collapsible)
   ============================================================ */
.refinement-chat__body {
    max-height: 600px;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.refinement-chat--collapsed .refinement-chat__body {
    max-height: 0;
}

/* ============================================================
   Messages Feed
   ============================================================ */
.refinement-chat__messages {
    max-height: 300px;
    overflow-y: auto;
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.refinement-chat__messages:empty {
    display: none;
}

/* User message — right-aligned, gradient bubble */
.refinement-msg--user {
    display: flex;
    justify-content: flex-end;
}

.refinement-msg--user .refinement-msg__bubble {
    background: linear-gradient(135deg, #215274, #2BB673);
    color: #ffffff;
    padding: 10px 16px;
    border-radius: 14px;
    border-bottom-right-radius: 4px;
    max-width: 80%;
    font-size: 14px;
    line-height: 1.5;
}

/* AI message — left-aligned with avatar */
.refinement-msg--ai {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.refinement-msg__avatar {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #215274, #2BB673);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 12px;
    flex-shrink: 0;
}

.refinement-msg--ai .refinement-msg__bubble {
    background: #f3f4f6;
    color: #374151;
    padding: 10px 16px;
    border-radius: 14px;
    border-bottom-left-radius: 4px;
    max-width: 85%;
    font-size: 14px;
    line-height: 1.5;
}

/* Typing indicator */
.refinement-msg__typing {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 10px 16px;
    background: #f3f4f6;
    border-radius: 14px;
    border-bottom-left-radius: 4px;
}

.refinement-msg__typing span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #215274;
    animation: refinementTypingDot 1.2s infinite ease-in-out;
}

.refinement-msg__typing span:nth-child(2) { animation-delay: 0.2s; }
.refinement-msg__typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes refinementTypingDot {
    0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
    40% { opacity: 1; transform: scale(1); }
}

/* ============================================================
   Suggestion Chips
   ============================================================ */
.refinement-chat__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 18px 14px;
}

.refinement-chat__chips:empty {
    display: none;
}

.refinement-chat__chip {
    padding: 6px 14px;
    border: 1px solid #2BB673;
    border-radius: 20px;
    background: transparent;
    color: #2BB673;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    font-family: inherit;
}

.refinement-chat__chip:hover {
    background: #2BB673;
    color: white;
}

/* ============================================================
   Input Area
   ============================================================ */
.refinement-chat__input-area {
    display: flex;
    gap: 8px;
    padding: 12px 18px;
    border-top: 1px solid #e5e7eb;
    background: #f9fafb;
    border-radius: 0 0 14px 14px;
}

.refinement-chat__input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.refinement-chat__input:focus {
    border-color: #2BB673;
    box-shadow: 0 0 0 2px rgba(43, 182, 115, 0.15);
}

.refinement-chat__input:disabled {
    background: #f3f4f6;
    color: #9ca3af;
}

.refinement-chat__send {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #215274, #2BB673);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.15s ease, transform 0.1s ease;
    flex-shrink: 0;
}

.refinement-chat__send:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

.refinement-chat__send:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.refinement-chat__send svg {
    width: 18px;
    height: 18px;
}

/* ============================================================
   Welcome state (before any refinement)
   ============================================================ */
.refinement-chat__welcome {
    padding: 16px 18px 8px;
    font-size: 13px;
    color: #6b7280;
    line-height: 1.5;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
    .refinement-chat__header {
        padding: 12px 14px;
    }

    .refinement-chat__header-left {
        gap: 8px;
    }

    .refinement-chat__title {
        font-size: 14px;
    }

    .refinement-chat__messages {
        padding: 12px 14px;
        max-height: 250px;
    }

    .refinement-chat__chips {
        padding: 0 14px 10px;
    }

    .refinement-chat__input-area {
        padding: 10px 14px;
    }

    .refinement-msg--user .refinement-msg__bubble,
    .refinement-msg--ai .refinement-msg__bubble {
        max-width: 90%;
    }
}