@media (prefers-color-scheme:light) {
	:root {
		--bg-primary: #f4f6f9;
		--bg-secondary: #ffffff;
		--card-bg: #ffffff;
		--text-primary: #333333;
		--text-secondary: #666666;
		--border: #dddddd;
		--progress-bg: #ecf0f1;
		--progress-bar: #2ecc71;
		--input-bg: #ffffff;
		--checkbox-bg: #f0f0f0;
		--accent: #3498db;
		--accent-hover: #2980b9
	}

body,
.week,
.day,
input,
.progress-bar {
		transition: all 0.3s ease
	}
}

:root {
	--bg-primary: #121212;
	--bg-secondary: #1e1e1e;
	--text-primary: #e0e0e0;
	--text-secondary: #aaaaaa;
	--accent: #bb86fc;
	--accent-hover: #9b6cf7;
	--card-bg: #252525;
	--border: #333333;
	--progress-bg: #2d2d2d;
	--progress-bar: #03dac6;
	--input-bg: #2c2c2c;
	--checkbox-bg: #3a3a3a
}

body {
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
	background: var(--bg-primary);
	color: var(--text-primary);
	line-height: 1.6;
	margin: 0;
	padding: 20px;
	transition: background 0.3s, color 0.3s
}

h1,
h2,
h3 {
	color: var(--accent);
	margin-top: 0
}

h1 {
	text-align: center;
	border-bottom: 2px solid var(--accent);
	padding-bottom: 10px;
	font-weight: 500
}

h2 {
	background: var(--bg-secondary);
	color: var(--accent);
	padding: 12px 15px;
	border-radius: 6px;
	margin-top: 25px;
	border-left: 4px solid var(--accent)
}

.week {
	background: var(--card-bg);
	margin: 20px 0;
	padding: 20px;
	border-radius: 12px;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
	border: 1px solid var(--border)
}

.day {
	margin: 16px 0;
	padding: 16px;
	background: var(--bg-secondary);
	border-radius: 8px;
	border-left: 4px solid var(--accent)
}

ul {
	padding-left: 20px;
	margin: 15px 0
}

li {
	margin: 12px 0;
	padding: 8px 0
}

input[type="checkbox"] {
	transform: scale(1.3);
	margin-right: 12px;
	accent-color: var(--accent);
	background: var(--checkbox-bg);
	border-radius: 4px
}

label {
	color: var(--text-primary);
	cursor: pointer;
	transition: color 0.2s
}

label:hover {
	color: var(--accent-hover)
}

input[type="number"] {
	background: var(--input-bg);
	color: var(--text-primary);
	border: 1px solid var(--border);
	padding: 4px 8px;
	border-radius: 4px;
	width: 60px
}

input[type="number"]:focus {
	outline: none;
	border-color: var(--accent);
	box-shadow: 0 0 0 2px rgba(187, 134, 252, 0.2)
}

.summary {
	text-align: center;
	font-weight: bold;
	margin: 15px 0;
	color: var(--text-secondary);
	font-size: 1.1em
}

.progress-bar {
	width: 100%;
	background: var(--progress-bg);
	height: 16px;
	border-radius: 8px;
	margin: 20px 0;
	overflow: hidden;
	box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3)
}

.progress {
	height: 100%;
	background: var(--progress-bar);
	width: 0%;
	transition: width 0.4s ease;
	border-radius: 8px;
	box-shadow: 0 0 5px rgba(3, 218, 198, 0.4)
}
.today-plan-card {
	background: var(--bg-secondary);
	margin-top:10px;
	padding:10px;
	border-radius:5px;
	font-size:0.95em;
}
footer {
	text-align: center;
	margin-top: 40px;
	color: var(--text-secondary);
	font-size: 0.9em;
	padding: 20px 0;
	border-top: 1px solid var(--border)
}

@media (prefers-color-scheme:dark) {
	body {
		-webkit-font-smoothing: antialiased
	}
}

header {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: .4rem 2rem;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    top: 0;
    z-index: 100;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

header .container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: .5rem;
}

header .logo {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

header .logo:hover {
    color: var(--text-secondary);
}

header nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: .8rem;
}

header li {
    margin: 0;
    padding: 0;
}

header nav a {
    color: var(--accent);
    text-decoration: none;
    font-size: .8rem;
    transition: color 0.2s ease;
}

header nav a:hover {
    color: var(--accent-hover);
}

/* 响应式：小屏幕下堆叠布局 */
@media (max-width: 768px) {
    header {
        padding: .5rem;
    }

    header .container {
        flex-direction: column;
        align-items: flex-start;
    }

    header nav ul {
        flex-direction: column;
        width: 100%;
        gap: .25rem;
    }

    header nav a {
        padding: 0.1rem 0;
    }
}