/* --- 全局与主题变量 --- */
:root {
    /* 浅色模式 (Light Mode) */
    --primary-color: #007bff;
    --background-color: #fff;
    --panel-background-color: #f8f9fa;
    --border-color: #dee2e6;
    --text-color: #212529;
    --text-color-muted: #6c757d;
    --active-item-bg: #e2eefe;
    --list-item-hover-bg: #f0f0f0;
    --popup-bg: white;
    --popup-border-color: #cccccc;
    --popup-text-color: #333;

    /* 震级颜色 (通用) */
    --magnitude-color-minor:  #999;
    --magnitude-color-notice: #000;
    --magnitude-color-yellow: #ffc107;
    --magnitude-color-red:    #dc3545;
    --magnitude-color-purple: #800080;
}

html[data-theme='dark'] {
    /* 深色模式 (Dark Mode) */
    --primary-color: #4dabf7;
    --background-color: #121212;
    --panel-background-color: #1e1e1e;
    --border-color: #333;
    --text-color: #e0e0e0;
    --text-color-muted: #888;
    --active-item-bg: #2a3a52;
    --list-item-hover-bg: #2c2c2c;
    --popup-bg: #2a2a2a;
    --popup-border-color: #444;
    --popup-text-color: #e0e0e0;
    --background-details-color: #888;
    
    /* 深色模式下部分震级颜色微调以提高对比度 */
    --magnitude-color-notice: #fff;

    /* 为深色模式下的版权信息设置更亮的颜色 */
    .ol-attribution ul,
    .ol-attribution li {
        color: var(--text-color); /* 使用主文本颜色，更清晰 */
    }
}


/* --- 全局样式重置与基础设定 --- */
body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    color: var(--text-color);
    background-color: var(--background-color); /* 应用背景色 */
    transition: background-color 0.3s ease, color 0.3s ease;
}

body.no-scroll {
    overflow: hidden;
}

/* --- 主布局容器 --- */
.main-container {
    display: flex;
    height: 100vh;
}

/* --- 左侧列表容器 --- */
.list-container {
    width: 380px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    background-color: var(--panel-background-color);
    border-right: 1px solid var(--border-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    transition: border-color 0.3s ease;
}

.list-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

#earthquake-list {
    list-style-type: none;
    padding: 0;
    margin: 0;
    overflow-y: auto;
    flex-grow: 1;
}

/* --- 列表项样式 --- */
#earthquake-list li {
    display: flex;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

#earthquake-list li:hover {
    background-color: var(--list-item-hover-bg);
}

#earthquake-list li.active {
    background-color: var(--active-item-bg);
    border-left: 4px solid var(--primary-color);
    padding-left: calc(1.25rem - 4px);
}

#earthquake-list .magnitude {
    flex-shrink: 0;
    width: 70px;
    margin-right: 1rem;
    text-align: center;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-color);
}

#earthquake-list .magnitude.mag-minor { color: var(--magnitude-color-minor); }
#earthquake-list .magnitude.mag-notice { color: var(--magnitude-color-notice); }
#earthquake-list .magnitude.mag-yellow { color: var(--magnitude-color-yellow); }
#earthquake-list .magnitude.mag-red { color: var(--magnitude-color-red); }
#earthquake-list .magnitude.mag-purple { color: var(--magnitude-color-purple); }

#earthquake-list .info { flex-grow: 1; }
#earthquake-list .location {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--text-color);
}
#earthquake-list .time {
    font-size: 0.8rem;
    color: var(--text-color-muted);
}

/* --- 加载动画 --- */
.list-container .loading-container {
    text-align: center;
    padding: 40px;
    color: var(--text-color-muted);
}
.spinner {
    border: 4px solid rgba(128, 128, 128, 0.2);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px auto;
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* --- 地图容器 --- */
#map {
    width: 100%;
    height: 100%;
    background-color: var(--panel-background-color);
}

/* --- OpenLayers 弹窗样式 --- */
.ol-popup {
    position: absolute;
    background-color: var(--popup-bg);
    color: var(--popup-text-color);
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
    padding: 15px;
    border-radius: 10px;
    border: 1px solid var(--popup-border-color);
    bottom: 12px;
    min-width: 280px;
    transform: translateX(-50%);
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}
.ol-popup:after, .ol-popup:before {
    top: 100%; border: solid transparent; content: " "; height: 0; width: 0; position: absolute; pointer-events: none;
}
.ol-popup:after {
    border-top-color: var(--popup-bg); border-width: 10px; left: 50%; margin-left: -10px; transition: border-top-color 0.3s ease;
}
.ol-popup:before {
    border-top-color: var(--popup-border-color); border-width: 11px; left: 50%; margin-left: -11px; transition: border-top-color 0.3s ease;
}
.ol-popup-closer {
    text-decoration: none; position: absolute; top: 2px; right: 8px; font-size: 1.2rem; color: var(--popup-text-color);
}
.ol-popup-closer:hover { color: var(--primary-color); }

/* --- 主题切换开关样式 (美化版) --- */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #87CEEB;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: all 0.4s cubic-bezier(.23,1,.32,1);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f39c12' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3ccircle cx='12' cy='12' r='5'/%3e%3cpath d='M12 1v2M12 21v2M4.22 4.22l1.42 1.42M18.36 18.36l1.42 1.42M1 12h2M21 12h2M4.22 19.78l1.42-1.42M18.36 5.64l1.42-1.42'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 18px 18px;
}

input:checked + .slider {
    background-color: #2c3e50;
}

input:checked + .slider:before {
    transform: translateX(26px);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23f1c40f' stroke='%23f1c40f' stroke-width='0.5'%3e%3cpath d='M21.64,13.24a1,1,0,0,0-1.12.33,9,9,0,0,1-11.45-11.45,1,1,0,0,0-.33-1.12A1,1,0,0,0,7.26,1.4,12,12,0,1,0,22.6,16.74,1,1,0,0,0,21.64,13.24Z'/%3e%3c/svg%3e");
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

/* --- OpenLayers 控件样式覆盖 (版权信息) --- */
.ol-attribution {
    background: transparent;
    border: none;
    bottom: 2px;
    right: 8px;
    padding: 2px;
}

.ol-attribution ul, .ol-attribution li {
    color: var(--text-color-muted);
    font-size: 11px;
    text-shadow: 1px 1px 2px var(--background-color);
    margin: 0;
    padding: 0;
    display: inline;
}

/* --- 自定义控件样式 (旋转与复位) --- */
.ol-rotate, .reset-view-control {
    right: .5em;
    padding: 0;
    background: none; 
}

.ol-rotate {
    top: .5em;
    border-radius: 4px 4px 0 0 !important;
}

.reset-view-control {
    top: calc(.5em + 1.375em); 
    border-radius: 0 0 4px 4px !important;
}

.ol-rotate button, .reset-view-control button {
    background-color: var(--panel-background-color);
    color: var(--text-color);
    width: 1.375em;
    height: 1.375em;
    font-size: 1.5em;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
}

.ol-rotate button {
    border-bottom: 1px solid var(--border-color);
}

.ol-rotate button:hover, .reset-view-control button:hover {
    background-color: var(--list-item-hover-bg);
    transform: scale(1.05);
}

/* --- 地图弹窗中CMT图片的样式 --- */
.popup-cmt-section {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

.popup-cmt-image {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin-top: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--background-secondary-color);
}

/* --- 弹窗中详细信息链接的样式 --- */
.popup-details-link-section {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.popup-details-link {
    display: inline-block;
    padding: 8px 16px;
    background-color: var(--background-details-color);
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-size: 0.9em;
    font-weight: bold;
    transition: background-color 0.2s ease;
}

.popup-details-link:hover {
    background-color: var(--magnitude-color-yellow);
}

/* =========== 开始：嵌入式筛选控件样式 =========== */

.filter-controls {
    padding: 1rem 0.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
}

.filter-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.filter-group h4 {
    margin: 0 0 0.75rem 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
    text-align: center;
}

.filter-group .radio-group {
    display: flex;
    justify-content: space-around;
    align-items: flex-start;
}

/* --- 自定义单选框核心样式 --- */
.filter-group .radio-group label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px; /* 单选框和文字的间距 */
    font-size: 0.8rem;
    color: var(--text-color-muted);
    cursor: pointer;
    text-align: center;
    width: 50px; /* 给定一个宽度让文字可以换行 */
}

.filter-group .radio-group input[type="radio"] {
    /* 隐藏原始单选框 */
    appearance: none;
    -webkit-appearance: none;
    margin: 0;
    /* 创建新的单选框外观 */
    width: 18px;
    height: 18px;
    border: 2px solid var(--text-color-muted);
    border-radius: 50%;
    display: grid;
    place-content: center;
    transition: border-color 0.2s ease;
}

.filter-group .radio-group input[type="radio"]::before {
    content: "";
    width: 10px;
    height: 10px;
    border-radius: 50%;
    transform: scale(0);
    transition: 120ms transform ease-in-out;
    background-color: var(--primary-color);
}

.filter-group .radio-group input[type="radio"]:checked {
    border-color: var(--primary-color);
}

.filter-group .radio-group input[type="radio"]:checked::before {
    transform: scale(1);
}

/* --- 隐藏和显示自定义输入框的逻辑 --- */
.filter-group .custom-fields {
    display: none;
    gap: 0.5rem;
    margin-top: 1rem; /* 自定义输入框出现时，与上方选项保持距离 */
    padding: 0 0.5rem;
}

.filter-group .custom-fields.vertical {
    flex-direction: column;
}

.filter-group .custom-fields:not(.vertical) {
    flex-direction: row;
    justify-content: space-between;
}

.filter-group .custom-field-item {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.filter-group .custom-field-item label {
    font-size: 0.8rem;
    color: var(--text-color-muted);
    margin-bottom: 0.25rem;
    /* 重置从 radio-group 继承的样式 */
    width: auto;
    gap: 0; 
}

.filter-group input[type="number"],
.filter-group input[type="text"] {
    width: 100%;
    box-sizing: border-box;
    padding: 5px 8px;
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 4px;
    font-size: 0.85rem;
}
/* =========== 结束：嵌入式筛选控件样式 =========== */