/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
body {
    font-family: 'Arial', sans-serif;
    min-height: 100vh;
    color: #333;
    transition: background 0.3s ease;
}

/* 容器样式 */
.container {
    max-width: 100%;
    margin: 0;
    padding: 10px 40px;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    transition: all 0.3s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部样式 */
header {
    text-align: center;
    margin-bottom: 10px;
    color: #333;
    transition: color 0.3s ease;
}

header h1 {
    font-size: 3rem;
    margin-bottom: 5px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    transition: text-shadow 0.3s ease;
}

/* 当前时间样式 */
.current-time {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 25px;
    color: #666;
    transition: color 0.3s ease;
}

/* 主要内容区域 */
.main-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 50px;
    margin-bottom: 60px;
    flex: 1;
}

/* 倒计时添加部分 */
.countdown-section {
    background: #ffffff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.countdown-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #444;
    text-align: center;
    transition: color 0.3s ease;
}

.countdown-input {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.input-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.input-row label {
    min-width: 80px;
    font-weight: bold;
    color: #555;
    transition: color 0.3s ease;
}

.input-row input[type="text"],
.input-row input[type="datetime-local"],
.input-row select {
    flex: 1;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.input-row input:focus,
.input-row select:focus {
    border-color: #8a9aff;
    outline: none;
    box-shadow: 0 0 0 3px rgba(138, 154, 255, 0.1);
}

.input-row button {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    background: #8a9aff;
    color: white;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.input-row button:hover {
    background: #7a89ff;
    transform: scale(1.05);
    box-shadow: 0 5px 10px rgba(138, 154, 255, 0.3);
}

/* 日期快捷选择按钮样式 */
.date-shortcuts {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.date-shortcut {
    padding: 6px 12px;
    border: 1px solid #ddd;
    border-radius: 20px;
    background: #f8f9fa;
    color: #333;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.date-shortcut:hover {
    background: #e9ecef;
    border-color: #8a9aff;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(138, 154, 255, 0.2);
}

.date-shortcut:active {
    transform: translateY(0);
}

/* 日历部分 */
.calendar-section {
    background: #ffffff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.calendar-title {
    font-size: 1.3rem;
    font-weight: bold;
    color: #444;
    transition: color 0.3s ease;
}

.calendar-nav {
    display: flex;
    gap: 10px;
}

.nav-btn {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 5px;
    background: #f0f0f0;
    color: #333;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    background: #e0e0e0;
    transform: scale(1.1);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
}

.weekday {
    text-align: center;
    font-weight: bold;
    color: #666;
    padding: 10px;
    border-radius: 5px;
    transition: color 0.3s ease;
}

.day {
    text-align: center;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.day:hover {
    background: rgba(138, 154, 255, 0.1);
    transform: scale(1.1);
}

.day.today {
    background: #8a9aff;
    color: white;
    font-weight: bold;
}

.day.other-month {
    color: #ccc;
    opacity: 0.6;
}

/* 统计面板部分 */
.stats-section {
    background: #ffffff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

/* 设置板块部分 */
.settings-section {
    background: #ffffff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.settings-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 云同步设置样式 */
.sync-settings {
    font-size: 1rem;
}

.sync-settings h3 {
    font-size: 1.1rem;
    font-weight: bold;
    color: #444;
    margin-bottom: 15px;
}

.sync-settings .input-row {
    margin-bottom: 12px;
    align-items: center;
}

.sync-settings label {
    min-width: 120px;
    font-weight: normal;
    color: #555;
}

.sync-settings select {
    flex: 1;
    padding: 8px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.sync-settings button {
    padding: 8px 16px;
    border: none;
    border-radius: 5px;
    background: #8a9aff;
    color: white;
    font-size: 0.9rem;
    cursor: pointer;
    margin-right: 10px;
    transition: all 0.3s ease;
}

.sync-settings button:hover {
    background: #7a89ff;
    transform: scale(1.05);
}

.sync-status {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #666;
}

/* 提醒设置样式 */
.reminder-settings {
    font-size: 1rem;
}

.reminder-settings h3 {
    font-size: 1.1rem;
    font-weight: bold;
    color: #444;
    margin-bottom: 15px;
}

.reminder-settings .input-row {
    margin-bottom: 12px;
    align-items: center;
}

.reminder-settings label {
    min-width: 120px;
    font-weight: normal;
    color: #555;
}

.reminder-rules {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-left: 120px;
    margin-top: -12px;
    margin-bottom: 12px;
}

.rule-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.third-party-reminders {
    margin-left: 120px;
    margin-top: -12px;
}

/* 暗黑模式下的提醒设置 */
body.dark-mode .reminder-settings h3 {
    color: #ccc;
}

body.dark-mode .reminder-settings label {
    color: #ccc;
}

body.dark-mode .rule-item label {
    color: #ccc;
}

body.dark-mode .third-party-reminders button {
    background: #667eea;
}

body.dark-mode .third-party-reminders button:hover {
    background: #5a6cd8;
}

/* 暗黑模式下的云同步设置 */
body.dark-mode .sync-settings h3 {
    color: #ccc;
}

body.dark-mode .sync-settings label {
    color: #ccc;
}

body.dark-mode .sync-settings select {
    background: rgba(60, 60, 60, 0.9);
    color: #f0f0f0;
    border: 2px solid #555;
}

body.dark-mode .sync-settings button {
    background: #667eea;
}

body.dark-mode .sync-settings button:hover {
    background: #5a6cd8;
}

body.dark-mode .sync-status {
    color: #999;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.stat-item {
    background: rgba(138, 154, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(138, 154, 255, 0.3);
}

.stat-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(138, 154, 255, 0.2);
    border-color: #8a9aff;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: #8a9aff;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
    transition: color 0.3s ease;
}

/* 倒计时列表部分 */
.countdowns-container {
    background: #ffffff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

#countdownsList {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.countdown-item {
    background: #ffffff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
    position: relative;
    overflow: hidden;
}

.countdown-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: #8a9aff;
    transition: all 0.3s ease;
}

.countdown-item:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transform: translateY(-3px);
    border-color: #8a9aff;
}

.countdown-item:hover::before {
    width: 8px;
    background: #7a89ff;
}

.countdown-item.countdown-ended {
    background: #f8f8f8;
    border-color: #e0e0e0;
    opacity: 0.8;
}

.countdown-item.countdown-ended::before {
    background: #999;
}

.countdown-item.countdown-ended .time-value {
    color: #999;
}

.countdown-item.countdown-ended .countdown-message {
    color: #999;
    font-style: italic;
}

.countdown-item h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #444;
    transition: color 0.3s ease;
}

.countdown-timer {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.time-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(240, 240, 240, 0.8);
    border-radius: 5px;
    padding: 15px 10px;
    transition: all 0.3s ease;
    min-width: 80px;
    text-align: center;
}

.time-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 3px;
    padding: 5px 10px;
    min-width: 60px;
    text-align: center;
    transition: all 0.3s ease;
}

.time-label {
    font-size: 0.9rem;
    color: #666;
    margin-top: 5px;
    transition: color 0.3s ease;
}

.countdown-message {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 15px;
    text-align: center;
    transition: color 0.3s ease;
}

.countdown-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.countdown-actions button {
    padding: 8px 16px;
    border: none;
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.countdown-actions button.edit-btn {
    background: #4CAF50;
    color: white;
}

.countdown-actions button.edit-btn:hover {
    background: #45a049;
    transform: scale(1.05);
}

.countdown-actions button.share-btn {
    background: #2196F3;
    color: white;
}

.countdown-actions button.share-btn:hover {
    background: #0b7dda;
    transform: scale(1.05);
}

.countdown-actions button.delete-btn {
    background: #f44336;
    color: white;
}

.countdown-actions button.delete-btn:hover {
    background: #da190b;
    transform: scale(1.05);
}

/* 空列表消息 */
#emptyMessage {
    text-align: center;
    color: #666;
    padding: 40px 20px;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

/* 页脚样式 */
footer {
    position: relative;
    margin-top: 60px;
    padding: 30px;
    background: #ffffff;
    border-radius: 0;
    box-shadow: none;
    text-align: center;
    font-size: 0.9rem;
    color: #666;
    transition: all 0.3s ease;
    margin-bottom: 0;
}

/* 暗黑模式样式 */
body.dark-mode {
    color: #f0f0f0;
    background: linear-gradient(45deg, #2a2a2a, #1a1a1a);
}

body.dark-mode .container {
    background: transparent;
    box-shadow: none;
}

body.dark-mode header {
    color: #f0f0f0;
}

body.dark-mode header h1 {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

body.dark-mode .current-time {
    color: #ccc;
}

body.dark-mode .countdown-section,
body.dark-mode .calendar-section,
body.dark-mode .settings-section,
body.dark-mode .stats-section,
body.dark-mode .countdowns-container {
    background: rgba(40, 40, 40, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

body.dark-mode .stat-item {
    background: rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.4);
}

body.dark-mode .stat-item:hover {
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
    border-color: #667eea;
}

body.dark-mode .stat-value {
    color: #667eea;
}

body.dark-mode .stat-label {
    color: #ccc;
}

body.dark-mode .countdown-title {
    color: #ccc;
}

body.dark-mode .input-row label {
    color: #ccc;
}

body.dark-mode .input-row input[type="text"],
body.dark-mode .input-row input[type="datetime-local"],
body.dark-mode .input-row select {
    background: rgba(60, 60, 60, 0.9);
    color: #f0f0f0;
    border: 2px solid #555;
}

body.dark-mode .input-row input:focus,
body.dark-mode .input-row select:focus {
    border-color: #8a9aff;
    box-shadow: 0 0 0 3px rgba(138, 154, 255, 0.2);
}

body.dark-mode .input-row button {
    background: #667eea;
}

body.dark-mode .input-row button:hover {
    background: #5a6cd8;
    box-shadow: 0 5px 10px rgba(102, 126, 234, 0.3);
}

/* 暗黑模式下的日期快捷选择按钮 */
body.dark-mode .date-shortcut {
    background: rgba(70, 70, 70, 0.9);
    border-color: #555;
    color: #f0f0f0;
}

body.dark-mode .date-shortcut:hover {
    background: rgba(80, 80, 80, 0.9);
    border-color: #667eea;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2);
}

body.dark-mode .calendar-title {
    color: #ccc;
}

body.dark-mode .nav-btn {
    background: rgba(60, 60, 60, 0.9);
    color: #f0f0f0;
}

body.dark-mode .nav-btn:hover {
    background: rgba(70, 70, 70, 0.9);
}

body.dark-mode .weekday {
    color: #ccc;
}

body.dark-mode .day {
    color: #f0f0f0;
}

body.dark-mode .day:hover {
    background: rgba(102, 126, 234, 0.2);
}

body.dark-mode .day.today {
    background: #667eea;
    color: white;
}

body.dark-mode .day.other-month {
    color: #666;
}

body.dark-mode .countdown-item {
    background: rgba(50, 50, 50, 0.9);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    border-color: #333;
}

body.dark-mode .countdown-item:hover {
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    border-color: #667eea;
}

body.dark-mode .countdown-item::before {
    background: #667eea;
}

body.dark-mode .countdown-item:hover::before {
    background: #5a6cd8;
}

body.dark-mode .countdown-item.countdown-ended {
    background: rgba(60, 60, 60, 0.9);
    border-color: #444;
}

body.dark-mode .countdown-item.countdown-ended::before {
    background: #777;
}

body.dark-mode .countdown-item.countdown-ended .time-value {
    color: #999;
}

body.dark-mode .countdown-item.countdown-ended .countdown-message {
    color: #999;
}

body.dark-mode .countdown-item h3 {
    color: #8a9aff;
}

body.dark-mode .time-box {
    background: rgba(60, 60, 60, 0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

body.dark-mode .time-value {
    color: #f0f0f0;
    background: rgba(70, 70, 70, 0.8);
}

body.dark-mode .time-label {
    color: #ccc;
}

body.dark-mode .countdown-message {
    color: #ccc;
}

body.dark-mode .countdown-actions button.edit-btn {
    background: #45a049;
}

body.dark-mode .countdown-actions button.edit-btn:hover {
    background: #3d8b40;
}

body.dark-mode .countdown-actions button.delete-btn {
    background: #e55a5a;
}

body.dark-mode .countdown-actions button.delete-btn:hover {
    background: #d54a4a;
}

body.dark-mode #emptyMessage {
    color: #999;
}

body.dark-mode footer {
    background: rgba(30, 30, 30, 0.95);
    color: #ccc;
    box-shadow: none;
}

/* 触摸反馈样式 */
* {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    -webkit-tap-highlight-color: transparent;
}

button, .nav-btn, .day, .date-shortcut {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    touch-action: manipulation;
}

/* 移动端日期选择器适配 */
input[type="datetime-local"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border-radius: 5px;
    width: 100%;
}

/* 移动端优化 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
        min-height: 100vh;
    }

    header h1 {
        font-size: 2rem;
    }

    .main-content {
        grid-template-columns: 1fr;
        gap: 25px;
        margin-bottom: 30px;
    }

    .countdown-timer {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }

    .time-box {
        min-width: 70px;
        padding: 10px 8px;
    }

    .input-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .input-row label {
        min-width: auto;
        font-size: 0.9rem;
    }

    .input-row input,
    .input-row select {
        width: 100%;
        padding: 12px;
        font-size: 1rem;
    }

    /* 移动端底部操作栏优化 */
    .countdown-actions {
        flex-wrap: wrap;
        gap: 8px;
    }

    .countdown-actions button {
        flex: 1;
        min-width: 100px;
        padding: 10px 12px;
        font-size: 0.85rem;
    }

    /* 日期快捷选择按钮优化 */
    .date-shortcuts {
        justify-content: space-between;
    }

    .date-shortcut {
        flex: 1;
        text-align: center;
    }

    footer {
        margin-top: 30px;
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    header h1 {
        font-size: 1.6rem;
    }

    .current-time {
        font-size: 0.9rem;
    }

    .main-content {
        gap: 15px;
        margin-bottom: 20px;
    }

    .countdown-section,
    .calendar-section,
    .countdowns-container {
        padding: 15px;
    }

    .time-value {
        font-size: 1.1rem;
        min-width: 50px;
        padding: 4px 8px;
    }

    .time-label {
        font-size: 0.75rem;
    }

    /* 进一步优化移动端操作栏 */
    .countdown-actions {
        flex-direction: column;
    }

    .countdown-actions button {
        width: 100%;
        margin-bottom: 5px;
    }

    /* 导出/导入/清空按钮适配 */
    .countdown-actions {
        flex-wrap: wrap;
        gap: 5px;
    }

    .countdown-actions button {
        flex: 1 1 calc(33.333% - 5px);
        min-width: 80px;
        font-size: 0.75rem;
        padding: 6px 8px;
    }

    footer {
        margin-top: 20px;
        padding: 10px;
        font-size: 0.8rem;
    }
}

/* 触摸动效 */
@media (hover: none) and (pointer: coarse) {
    button:active,
    .nav-btn:active,
    .date-shortcut:active,
    .day:active {
        transform: scale(0.95);
        transition: transform 0.1s ease;
    }

    .countdown-item:active {
        transform: translateY(-1px);
        transition: transform 0.1s ease;
    }
}