/* ===================================================
   ai_search.css — AI 症狀查詢聊天介面
   使用頁面：ai_search.html
=================================================== */

.chat_container {
    width: 100%;
    max-width: 820px;
    flex: 1;
    min-height: 320px;
    display: flex;
    flex-direction: column;
    border: 1px solid #dce7f7;
    border-radius: var(--radius-md);
    background: #fafcff;
    overflow: hidden;
    margin-bottom: 24px;
    box-shadow: var(--shadow-card);
}

.message_wrapper {
    display: flex;
    width: 100%;
    align-items: flex-end;
    margin: 5px 0;
}

.message_wrapper.left  { justify-content: flex-start; }
.message_wrapper.right { justify-content: flex-end; }

.chat_window {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 18px 16px;
    overflow-y: auto;
    background: #f5f9ff;
    scrollbar-width: thin;
    scrollbar-color: #b8d0ee #eef3fb;
}

.chat_window::-webkit-scrollbar { width: 5px; }
.chat_window::-webkit-scrollbar-track { background: #eef3fb; }
.chat_window::-webkit-scrollbar-thumb { background: #b8d0ee; border-radius: 4px; }

.message {
    display: inline-block;
    margin: 4px 0;
    padding: 10px 16px;
    border-radius: 12px;
    max-width: 72%;
    line-height: 1.6;
    font-size: 0.93rem;
    word-wrap: break-word;
}

.user_msg {
    background: linear-gradient(135deg, #0a74da, #1a9bff);
    color: #ffffff;
    margin-left: auto;
    text-align: right;
    display: block;
    border-radius: 12px 12px 2px 12px;
    box-shadow: 0 2px 10px rgba(10, 116, 218, 0.25);
}

.ai_msg {
    background: #ffffff;
    color: var(--text-primary);
    border: 1px solid #dce7f7;
    margin-right: auto;
    text-align: left;
    display: block;
    border-radius: 12px 12px 12px 2px;
    box-shadow: 0 1px 4px rgba(10, 116, 218, 0.06);
}

.msg_time {
    font-size: 0.72rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.chat_input {
    display: flex;
    border-top: 1px solid #dce7f7;
    background: #ffffff;
}

.chat_input input {
    flex: 1;
    padding: 14px 16px;
    border: none;
    outline: none;
    font-size: 0.93rem;
    background: transparent;
    color: var(--text-primary);
}

.chat_input input::placeholder { color: var(--text-muted); }

.chat_input button {
    padding: 14px 26px;
    border: none;
    background: linear-gradient(90deg, #0a74da, #1a9bff);
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.22s;
    font-size: 0.93rem;
    letter-spacing: 0.8px;
}

.chat_input button:hover { opacity: 0.85; }

/* ===================================================
   Search History Bar (ai_search.html)
=================================================== */
.search_history_bar {
    width: 100%;
    max-width: 820px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: #f0f7ff;
    border: 1px solid #dce7f7;
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.history_label {
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
    font-weight: 600;
}

#history_chips { display: flex; flex-wrap: wrap; gap: 6px; flex: 1; }

.history_chip {
    background: #fff;
    border: 1px solid #b8d0ee;
    border-radius: 20px;
    padding: 3px 12px;
    font-size: 0.78rem;
    color: var(--color-primary);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.history_chip:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

#clear_history_btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.76rem;
    cursor: pointer;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    transition: color 0.18s;
}

#clear_history_btn:hover { color: #d9534f; }

/* ===================================================
   緊急度橫幅（symptom_main.classify_urgency）
=================================================== */
.urgency_banner {
    align-self: flex-start;
    max-width: 90%;
    margin: 6px 0 4px;
    padding: 12px 16px;
    border-radius: 12px 12px 12px 2px;
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    font-size: 0.92rem;
    line-height: 1.55;
}

.urgency_banner .urgency_head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 4px;
}

.urgency_banner .urgency_advice {
    font-size: 0.86rem;
    opacity: 0.95;
}

.urgency_banner .urgency_call_btn {
    display: inline-block;
    margin-top: 8px;
    padding: 6px 14px;
    background: #ffffff;
    color: #dc2626;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.85rem;
    text-decoration: none;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.18);
}

.urgency_banner.level_emergency { background: #dc2626; }
.urgency_banner.level_same_day  { background: #f59e0b; }
.urgency_banner.level_routine   { background: #10b981; }

/* ===================================================
   就醫層級 badge（symptom_main.classify_care_level）
=================================================== */
.care_level_badge {
    align-self: flex-start;
    max-width: 90%;
    margin: 4px 0 6px;
    padding: 8px 14px;
    border-radius: 12px;
    border-left: 4px solid;
    font-size: 0.86rem;
    line-height: 1.5;
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}
.care_level_badge .care_head {
    font-weight: 700;
    font-size: 0.92rem;
    margin-bottom: 2px;
}
.care_level_badge .care_advice {
    font-size: 0.78rem;
    color: #4b5563;
}
.care_level_badge.care_clinic {
    border-left-color: #10b981;
    background: #f0fdf4;
}
.care_level_badge.care_clinic .care_head { color: #047857; }
.care_level_badge.care_hospital {
    border-left-color: #0d9488;
    background: #f0fdfa;
}
.care_level_badge.care_hospital .care_head { color: #0f766e; }
.care_level_badge.care_emergency {
    border-left-color: #dc2626;
    background: #fef2f2;
}
.care_level_badge.care_emergency .care_head { color: #b91c1c; }

/* ===================================================
   分級醫療：建議先看診所（symptom_main.recommend_clinic_first）
=================================================== */
.clinic_first_badge {
    align-self: flex-start;
    max-width: 90%;
    margin: 4px 0 6px;
    padding: 8px 14px;
    border-radius: 12px;
    border-left: 4px solid #f59e0b;
    background: #fffbeb;
    font-size: 0.86rem;
    line-height: 1.5;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}
.clinic_first_badge .clinic_first_head {
    font-weight: 700;
    font-size: 0.92rem;
    color: #b45309;
    margin-bottom: 2px;
}
.clinic_first_badge .clinic_first_advice {
    font-size: 0.78rem;
    color: #4b5563;
}

/* ===================================================
   癌症六階段指引卡（symptom_main.recommend_cancer_stages）
=================================================== */
.cancer_info_card {
    align-self: flex-start;
    max-width: 92%;
    margin: 4px 0 6px;
    padding: 10px 14px;
    border-radius: 12px;
    border-left: 4px solid #dc2626;
    background: #fef2f2;
    font-size: 0.86rem;
    line-height: 1.5;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}
.cancer_info_card .cancer_info_title {
    font-weight: 700;
    font-size: 0.95rem;
    color: #b91c1c;
    margin-bottom: 4px;
}
.cancer_info_card .cancer_info_subtitle {
    font-size: 0.78rem;
    color: #4b5563;
    margin-bottom: 8px;
}
.cancer_info_card .cancer_info_stages {
    display: flex;
    flex-direction: column;
    gap: 4px;
    border-top: 1px dashed #fca5a5;
    border-bottom: 1px dashed #fca5a5;
    padding: 6px 0;
    margin-bottom: 6px;
}
.cancer_info_card .cancer_info_row {
    display: flex;
    gap: 8px;
    align-items: baseline;
    font-size: 0.8rem;
}
.cancer_info_card .cancer_info_label {
    flex: 0 0 auto;
    min-width: 110px;
    color: #7f1d1d;
    font-weight: 700;
}
.cancer_info_card .cancer_info_dept {
    flex: 1;
    color: #374151;
}
.cancer_info_card .cancer_info_advice {
    font-size: 0.74rem;
    color: #7f1d1d;
    font-style: italic;
}

/* ===================================================
   AI 預測回饋 bar（/feedback API）
=================================================== */
.feedback_bar {
    align-self: flex-start;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 4px 0 10px;
    padding: 6px 10px;
    background: #f0f7ff;
    border: 1px solid #dce7f7;
    border-radius: 999px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.feedback_label {
    font-weight: 600;
    margin-right: 4px;
    white-space: nowrap;
}

.feedback_btn {
    border: 1px solid #b8d0ee;
    background: #ffffff;
    color: var(--color-primary);
    border-radius: 999px;
    padding: 3px 12px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.feedback_btn:hover:not(:disabled) {
    background: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

.feedback_btn.selected {
    background: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

.feedback_btn:disabled {
    cursor: default;
    opacity: 0.55;
}

.feedback_down.selected {
    background: #ef4444;
    border-color: #ef4444;
}

/* RWD */
@media (max-width: 768px) {
    .chat_container { min-height: 280px; }
}

@media (max-width: 600px) {
    .chat_container { min-height: 240px; }
}