/* 引入字体 */
@import url('https://fonts.googleapis.com/css2?family=Rubik:ital,wght@0,300..900;1,300..900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@200..900&display=swap');
:root {
    /* 浅色模式 */
    --bg-color: #f4f7f6;
    --app-bg-color: #fff;
    --text-color: #333;
    --header-bg-color: #ffffff;
    --border-color: #e0e0e0;
    --border-color-light: #eee;
    --header-text-color: #2c3e50;
    --secondary-text-color: #7f8c8d;
    --interactive-bg-color: #f8f9fa;
    --modal-bg-rgb: #ffffff;
    --tooltip-bg: 255, 255, 255;
    --modal-text-color: #000000;
    --primary-color: #425aef;
    --primary-text-color: white;
    --current-week-bg: #ebeeff;
    --today-bg: #ebeeff;
    --modal-bg: white;
    --modal-shadow: rgba(0,0,0,0.1);
    --app-shadow: rgba(0,0,0,0.05);
    --course-text-color: #333;
    --tooltip-strong-shadow: rgba(0, 0, 0, 0.4);
}

/* 自动或手动切换到深色模式 */
html[data-theme="dark"] {
        --bg-color: #1a1a1a;
        --app-bg-color: #252525;
        --text-color: #e0e0e0;
        --header-bg-color: #2c2c2c;
        --border-color: #444;
        --border-color-light: #383838;
        --header-text-color: #f1f1f1;
        --secondary-text-color: #999;
        --interactive-bg-color: #333;
        --modal-bg-rgb: #2c2c2c;
        --tooltip-bg: 23,23,23;
        --modal-text-color: #ffffff;
        --primary-color: #ffc848;
        --primary-text-color: #121212;
        --current-week-bg: #4d4d1a;
        --today-bg: #33331a;
        --modal-bg: #171717;
        --modal-shadow: rgba(0,0,0,0.4);
        --app-shadow: rgba(0,0,0,0.2);
        --course-text-color: #fff;
        --tooltip-strong-shadow: rgba(255, 255, 255, 0.6);
}

body {
    font-family: 'Noto Serif SC', serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 10px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 18px; /* 全局基础字号 */
    transition: background-color 0.3s, color 0.3s;
}

#app-container {
    max-width: 1400px;
    margin: 0 auto;
    background-color: var(--app-bg-color);
    border-radius: 12px;
    box-shadow: 0 8px 30px var(--app-shadow);
    overflow: hidden;
    transition: background-color 0.3s;
}

/* 顶部控制栏 */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    background-color: var(--header-bg-color);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    transition: background-color 0.3s, border-bottom-color 0.3s;
}

.title-container {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.title-container h1 {
    font-size: 1.5em; /* 使用em相对单位 */
    color: var(--header-text-color);
    margin: 0;
    font-variation-settings: 'wght' 700;
}

.week-switcher {
    display: flex;
    align-items: center;
    background-color: var(--interactive-bg-color);
    border-radius: 20px;
    padding: 2px;
}

.week-switcher button {
    border: none;
    background-color: transparent;
    color: var(--primary-color);
    font-size: 1.2em;
    cursor: pointer;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    line-height: 32px;
    text-align: center;
    transition: font-variation-settings 0.3s ease, background-color 0.2s;
}
.week-switcher button:hover {
    background-color: var(--interactive-hover-bg-color);
    /* font-variation-settings: 'wght' 800; */
}

#current-week-display {
    margin: 0 10px;
    font-size: 1em;
    color: var(--header-text-color);
    padding: 4px 10px;
    border-radius: 20px;
    user-select: none;
    font-variation-settings: 'wght' 600;
}
#current-week-display.is-current {
    color: var(--primary-color);
    background-color: var(--current-week-bg);
}

.controls {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.controls button, .controls select, #course-day, #load-local-json-btn {
    padding: 0 16px; /* 调整内边距以控制内容 */
    height: 38px; /* 统一高度 */
    line-height: 38px; /* 垂直居中文本 */
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--interactive-bg-color);
    font-family: inherit;
    font-size: 0.9em;
    cursor: pointer;
    transition: all 0.8s ease, font-variation-settings 0.8s ease;
    box-sizing: border-box; /* 确保padding和border不影响总高度 */
}

.controls select {
    padding-right: 30px; /* 为下拉箭头留出空间 */
}


.controls button:hover, .controls select:hover, .danger-btn:hover, .primary-btn:hover, #load-local-json-btn:hover {
    background-color: var(--interactive-hover-bg-color);
    border-color: #aaa;
    /* font-variation-settings: 'wght' 700; */
    transform: translateY(-1px);
}

/* 新增：刷新按钮和手机端专用按钮样式 */
#force-refresh-btn {
    font-size: 1em;
    padding: 0;
    width: 38px; /* 与其他按钮高度一致，形成正方形 */
    font-variation-settings: 'wght' 400;
}
#add-course-mobile-btn {
    display: none; /* 默认隐藏 */
}

#add-schedule-btn {
    background-color: var(--primary-color);
    color: var(--primary-text-color);
    border-color: var(--primary-color);
}
#add-schedule-btn:hover {
    background-color: var(--primary-color);
}

#schedule-selector {
    background-color: var(--interactive-bg-color);
    color: var(--text-color);
}

#course-day {
    background-color: var(--interactive-bg-color);
    color: var(--text-color);
}

/* 课程表网格 */
#timetable-wrapper {
    padding: 15px;
    overflow-x: auto;
}

#timetable-grid {
    display: grid;
    position: relative;
    min-width: 900px;
}

.day-header {
    text-align: center;
    padding: 10px 0;
    border-bottom: 2px solid var(--border-color);
    color: var(--header-text-color);
    position: sticky;
    top: 0;
    background: var(--app-bg-color); /* 使用 app-bg-color 以确保与背景融合 */
    z-index: 10;
    font-variation-settings: 'wght' 700;
}

.day-header .date {
    font-size: 0.7em;
    font-variation-settings: 'wght' 400;
    color: var(--secondary-text-color);
    margin-top: 4px;
    line-height: 130%;
}

.day-header.today {
    color: var(--primary-color);
    background-color: var(--today-bg);
    border-bottom-color: var(--primary-color);
}

#timeline {
    grid-column: 1 / 2;
    grid-row: 2 / -1;
    display: flex;
    flex-direction: column;
}

.time-slot {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-right: 1px solid var(--border-color-light);
    border-bottom: 1px solid var(--border-color-light);
    color: var(--secondary-text-color);
    font-size: 0.8em;
    min-height: 80px;
    background-color: var(--interactive-bg-color);
    padding-bottom: 8px;
}

.time-slot .period {
    font-size: 1.2em;
    margin-bottom: 4px;
    color: var(--text-color);
    font-variation-settings: 'wght' 700;
}

.time-slot .time {
    font-variation-settings: 'wght' 400;
    line-height: 130%;
}

.day-column {
    display: grid;
    grid-template-rows: repeat(var(--class-periods, 12), 1fr);
    grid-auto-columns: 1fr;
    border-right: 1px solid var(--border-color-light);
    grid-row: 2 / -1;
}
.day-column:last-child {
    border-right: none;
}


.grid-cell {
    border-bottom: 1px solid var(--border-color-light);
    cursor: pointer;
}
.grid-cell:hover {
    background-color: rgba(120, 120, 120, 0.05);
}

.course-item {
    grid-column: 1;
    margin: 4px 4px;
    z-index: 5;
    height: auto; 
    border-radius: 8px;
    padding: 8px;
    box-sizing: border-box;
    color: var(--course-text-color);
    font-size: 0.8em;
    cursor: pointer;
    transition: all 0.2s ease, font-variation-settings 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.course-item:hover {
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    transform: translateY(-2px);
    z-index: 6;
    /* font-variation-settings: 'wght' 700; */
}

/* 新增：正在进行的课程高亮描边 */
.course-item.is-ongoing {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    transform: translateY(-1px);
    z-index: 7;
}

.course-item .course-name {
    font-variation-settings: 'wght' 800;
    margin-bottom: 4px;
    font-size: 1.5em;
    line-height: 140%;
}

.course-item .course-location, .course-item .course-teacher, .course-item .course-weeks {
    opacity: 0.9;
    white-space: normal;
    word-break: break-all;
    line-height: 140%;
}

.course-item .course-location::before{
    content: '@ ';
}


/* 弹窗样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--modal-bg-rgb);
    border-radius: 12px;
    box-shadow: 0 10px 40px var(--modal-shadow);
    width: 90%;
    max-width: 500px;
    animation: fadeIn 0.3s ease-out;
    transition: background-color 0.3s;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 { margin: 0; font-size: 1.1em; color: var(--header-text-color); }

.close-btn {
    border: none; background: none; font-size: 1.5em;
    cursor: pointer; color: #888;
}
.close-btn:hover { color: var(--text-color); }

.modal-body { padding: 25px; max-height: 60vh; overflow-y: auto; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-variation-settings: 'wght' 600; font-size: 0.9em; color: var(--text-color); }
.form-group input, .form-group textarea {
    width: 100%; padding: 10px; border: 1px solid var(--border-color); border-radius: 8px;
    box-sizing: border-box; font-family: inherit; font-size: 0.9em;
    background-color: var(--app-bg-color);
    color: var(--text-color);
}
.form-group input[type="checkbox"] { width: auto; }
textarea#json-input { height: 150px; resize: vertical; }

.feedback-msg { margin-top: 15px; padding: 10px; border-radius: 8px; font-variation-settings: 'wght' 600; }
.feedback-msg.success { background-color: #eafaf1; color: #2ecc71; }
.feedback-msg.error { background-color: #fbebee; color: #e74c3c; }


.modal-footer {
    padding: 15px 25px; border-top: 1px solid var(--border-color); text-align: right;
}
.modal-footer button {
    padding: 10px 20px; border: none; border-radius: 8px; font-family: inherit;
    font-size: 0.9em; cursor: pointer; margin-left: 10px;
}

/* 新增：时间设置的触发器样式 */
.time-display-trigger {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--interactive-bg-color);
    cursor: pointer;
    text-align: center;
    font-family: "Rubik", sans-serif;
    transition: background-color 0.2s;
}
.time-display-trigger:hover {
    background-color: var(--interactive-hover-bg-color);
}

.primary-btn { background-color: var(--primary-color); color: var(--primary-text-color); }
.primary-btn:hover { background-color: var(--primary-color) }
.danger-btn { background-color: #e74c3c; color: var(--text-color); }
.danger-btn:hover { background-color: #c0392b; }

/* 仅在浅色模式下生效 */
html:not([data-theme="dark"]) .danger-btn:hover {
    color: white;
}

/* 新增：时间轮盘选择器样式 */
.time-picker-container {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    align-items: center;
    justify-content: center;
}
.time-picker-container span {
    font-size: 24px;
    font-variation-settings: 'wght' 700;
    color: var(--secondary-text-color);
}
.wheel-container {
    width: 80px;
    height: 150px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    background-color: var(--interactive-bg-color);
}
.selection-indicator {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 30px; /* 与 item-height 保持一致 */
    transform: translateY(-50%);
    /* 修改：使用 primary-color */
    background-color: var(--primary-color-translucent, rgba(66, 90, 239, 0.1));
    border-top: 1px solid var(--primary-color);
    border-bottom: 1px solid var(--primary-color);
    z-index: 1;
    pointer-events: none;
}
.number-wheel {
    width: 100%;
    height: 100%;
    overflow-y: scroll;
    scroll-snap-type: y mandatory;
    padding: 60px 0; /* (容器高度 - 项目高度) / 2 */
    box-sizing: border-box;
    z-index: 2;
    position: relative;
    font-family: "Rubik", sans-serif; /* 引入一个支持字重变化的数字字体 */
}
.number-wheel::-webkit-scrollbar { display: none; }
.number-wheel { -ms-overflow-style: none; scrollbar-width: none; }
.number-item {
    height: 30px; /* 项目高度 */
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    color: var(--text-color);
    scroll-snap-align: center;
    /* 修改：增加 font-variation-settings 和 opacity 的过渡效果 */
    transition: font-variation-settings 0.2s ease-out, opacity 0.2s ease-out;
    font-variation-settings: 'wght' 100;
    opacity: 0.5;
    cursor: pointer; /* 增加手型光标，提示可以点击 */
}

/* 悬浮提示框 */
#tooltip {
    position: fixed; 
    /* 使用变量，适配深/浅色模式，并增加透明度 */
    background-color: rgba(var(--tooltip-bg, 255, 255, 255), 0.65); 
    /* 增加背景模糊效果 */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); /* 兼容 Safari */
    color: var(--tooltip-text-color, var(--text-color));
    padding: 10px 15px; 
    border-radius: 16px; 
    font-size: 1em; 
    z-index: 2000;
    pointer-events: none; 
    white-space: pre-wrap; 
    max-width: 300px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2); 
    transform: translate(-50%, -110%);
    /* 修改：增加 visibility 过渡，并调整 transform 初始状态 */
    transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
    border: 1px solid var(--border-color);
    /* 新增：默认隐藏 */
    opacity: 0;
    visibility: hidden;
}

#tooltip.visible {
    /* 新增：显示时的状态 */
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -120%); /* 动画效果，轻微上移 */
}

#tooltipp {
    margin: 3px 0;
    font-size: 0.9em;
    color: var(--modal-text-color);
}

#tooltip strong {
    font-variation-settings: 'wght' 800;
    font-size: 1.1em;
    color: var(--course-text-color);
    /* 新增：为颜色变化增加过渡效果 */
    transition: color 0.2s ease, background-color 0.2s ease;
    /* 修改：移除文本阴影，增加内边距和圆角 */
    padding: 2px 8px;
    border-radius: 4px;
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* 响应式布局 - 移动设备 */
@media (max-width: 768px) {
    body { padding: 0; }
    #app-container { border-radius: 0}
    .top-bar { flex-direction: column; align-items: flex-start; gap: 15px; }
    #timetable-wrapper { padding: 10px; }
    #timetable-grid { display: block; min-width: 0; }
    
    /* 新增：在手机端显示特定按钮 */
    #add-course-mobile-btn {
        display: inline-block;
    }

    #page {
        padding: 0;
    }

    .day-header, #timeline { display: none; }

    .day-column {
        display: block;
        border-right: none;
        margin-bottom: 25px;
    }
    .day-column::before {
        content: attr(data-day-name) " " attr(data-date); /* 加上日期 */
        font-size: 1.1em;
        font-variation-settings: 'wght' 700;
        display: block;
        padding: 10px;
        border-bottom: 2px solid var(--primary-color);
        margin-bottom: 10px;
    }
    .day-column.today::before {
        color: var(--primary-color);
        background-color: var(--today-bg);
        border-radius: 8px 8px 0 0;
    }

    .grid-cell {
        min-height: auto;
        border: none;
        /* 移除固定的底部内边距 */
    }
    
    .course-item {
        position: relative;
        left: 0;
        top: 0;
        margin-bottom: 10px;
        transform: none !important;
        box-shadow: 0 2px 8px rgba(0,0,0,0.08) !important;
        grid-row: auto !important;
    }
    .course-item::before {
        content: attr(data-period-text); /* 修改：使用新的 data 属性 */
        font-variation-settings: 'wght' 600;
        display: block;
        margin-bottom: 2px;
        opacity: 0.8;
    }
}