* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS Variables for themes */
:root {
    /* Light theme variables (default) */
    --bg-color: #ffffff;
    --text-color: #333333;
    --calendar-bg: rgba(255, 255, 255, 0.9);
    --footer-bg: rgba(240, 240, 240, 0.85);
    --day-header-bg: rgba(240, 240, 240, 0.85);
    --calendar-day-bg: rgba(255, 255, 255, 0.9);
    --calendar-day-empty-bg: rgba(249, 249, 249, 0.7);
    --weekend-day-bg: rgba(240, 248, 255, 0.8);
    --border-color: #ccc;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --tooltip-bg: rgba(255, 255, 255, 0.95);
    --info-color: #666;
    --link-color: #eb7ea3;
    --link-hover-color: #d65c8a;
    --capsule-bg: rgba(255, 255, 255, 0.9);
    --capsule-shadow: rgba(0, 0, 0, 0.15);
    --day-text-color: #333;
    --header-text-color: #333;
    --stat-text-color: #666;
    --current-theme-color: #8A2B3B; /* 默认主题色，由JavaScript设置 */
}

/* Add transition for theme switching */
body {
    transition: background-color 0.5s ease, color 0.5s ease;
}

.calendar-container {
    transition: background 0.5s ease, box-shadow 0.5s ease;
}

.footer {
    transition: background 0.5s ease, color 0.5s ease;
}

#currentMonthYear {
    transition: color 0.5s ease;
}

.nav-btn {
    transition: background 0.5s ease, opacity 0.2s ease;
}

.capsule-content {
    transition: background 0.5s ease, color 0.5s ease;
}

.info-tooltip {
    transition: background 0.5s ease, color 0.5s ease;
}

/* Transitions for theme switching */
[data-theme="dark"] body,
[data-theme="dark"] .calendar-container,
[data-theme="dark"] .footer,
[data-theme="dark"] .capsule-content,
[data-theme="dark"] .info-tooltip {
    transition: background-color 0.5s ease, color 0.5s ease;
}

/* Animation class for transitions */
.calendar-container.animating,
.capsule-footer.animating {
    transition: opacity 0.5s ease, transform 0.5s ease;
}

/* Dark theme variables */
[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #f0f0f0;
    --calendar-bg: rgba(30, 30, 30, 0.9);
    --footer-bg: rgba(40, 40, 40, 0.85);
    --day-header-bg: rgba(50, 50, 50, 0.85);
    --calendar-day-bg: rgba(40, 40, 40, 0.9);
    --calendar-day-empty-bg: rgba(45, 45, 45, 0.7);
    --weekend-day-bg: rgba(60, 60, 80, 0.8);
    --border-color: #555;
    --shadow-color: rgba(0, 0, 0, 0.7);
    --tooltip-bg: rgba(40, 40, 40, 0.95);
    --info-color: #aaa;
    --link-color: #ff9eb3;
    --link-hover-color: #ff7a9d;
    --capsule-bg: rgba(40, 40, 40, 0.9);
    --capsule-shadow: rgba(0, 0, 0, 0.4);
    --day-text-color: #f0f0f0;
    --header-text-color: #f0f0f0;
    --stat-text-color: #aaa;
    --nav-btn-color: #ff9eb3; /* Use link color for better visibility in dark mode */
    --nav-btn-text-color: #f0f0f0;
}

/* Make sure theme toggle icon is visible in both themes */
.theme-toggle-icon {
    width: 24px;
    height: 24px;
    fill: white;
}

[data-theme="dark"] .theme-toggle-icon {
    fill: white;
}

body {
    font-family: Arial, sans-serif;
    background-image: url('/img/amphoreus.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-color: var(--bg-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow: auto; /* Allow scrolling when needed */
    position: relative;
}

/* Landscape mode (default) */
.calendar-container {
    width: 100%;
    max-width: 1200px;
    height: 85vh; /* Reduced to account for fixed footer stats */
    background: var(--calendar-bg); /* Slightly transparent white for better visibility */
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow-color);
    display: grid;
    grid-template-columns: 1fr 1fr; /* 图片和日历各占一半 */
    grid-template-rows: 1fr 50px; /* Fixed footer height, rest for content */
    grid-template-areas:
        "image calendar"
        "footer footer";
    transition: opacity 0.5s ease, transform 0.5s ease; /* Add transition for toggle animation */
}

.image-section {
    grid-area: image;
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    position: relative;
    border-radius: 15px 0 0 15px;
    min-height: 0;
    min-width: 0;
    /* Ensure the element fills its grid cell */
    height: 100%;
    width: 100%;
    box-sizing: border-box;
    padding: 20px;
    overflow: hidden; /* Ensure background extends to all edges */
}

.month-display {
    position: absolute;
    left: 20px;
    bottom: 20px;
    z-index: 2;
    padding: 10px;
}

.month-text-group {
    display: flex;
    flex-direction: row;
    align-items: flex-end; /* Align items to bottom */
    color: white; /* Keep white for readability over background images */
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
}

.month-text {
    font-size: 3em; /* 增大字体 */
    font-weight: bold;
    color: white; /* Keep white for readability over background images */
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
    text-align: center; /* 确保文字居中 */
    margin: 0; /* Remove margin to better control alignment */
    align-self: flex-end; /* Align to bottom of flex container */
    line-height: 1; /* Tighter line height */
}

/* For dark mode, we keep the same styling for readability over background */
[data-theme="dark"] .month-text-group,
[data-theme="dark"] .month-text {
    color: white; /* Still white to maintain readability over background image */
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
}


.month-title {
    position: absolute;
    right: 20px;  /* Align to right with same margin as month text on left */
    top: 20px;
    color: white; /* Keep white for readability over background images */
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
    z-index: 2;
    text-align: right;
    padding: 10px;
    max-width: calc(100% - 120px); /* Ensure it doesn't go beyond the container and leaves room for the toggle button */
}

/* For dark mode, we keep the same styling for readability over background */
[data-theme="dark"] .month-title {
    color: white; /* Still white to maintain readability over background image */
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
}

.toggle-calendar-btn {
    position: fixed;
    right: 20px;
    top: 20px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    cursor: pointer;
    z-index: 1000;
    padding: 8px;
    border-radius: 50%;
    transition: background 0.3s;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.toggle-calendar-btn:hover {
    background: rgba(0, 0, 0, 0.7);
}

.toggle-icon {
    width: 20px;
    height: 20px;
    display: block;
    margin: auto;
}

/* Home button - matches the style of other fixed buttons */
.home-btn {
    position: fixed;
    left: 20px; /* Positioned on the left side */
    top: 20px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    cursor: pointer;
    z-index: 1000;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    transition: background 0.3s;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0; /* Remove any default padding */
    text-decoration: none;
}

.home-btn:hover {
    background: rgba(0, 0, 0, 0.7);
}

/* 深色模式切换按钮 */
.theme-toggle-btn {
    position: fixed;
    right: 65px; /* Positioned to the left of the calendar toggle button, with more spacing */
    top: 20px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    cursor: pointer;
    z-index: 1000;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    transition: background 0.3s;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0; /* Remove any default padding */
}

.theme-toggle-btn:hover {
    background: rgba(0, 0, 0, 0.7);
}

.theme-toggle-icon {
    width: 24px;
    height: 24px;
    min-width: 16px;
    min-height: 16px;
    display: block;
    margin: auto;
    transform: translate(-1px, 2px); /* Move 1px left and 2px down (net result: 1px right from original, 2px down) */
}

/* 胶囊底部样式 */
.capsule-footer {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 999;
    width: 90%;
    max-width: 600px;
    transition: opacity 0.5s ease, transform 0.5s ease; /* Add transition for toggle animation */
    opacity: 0;
    visibility: hidden;
}

.capsule-footer.show {
    opacity: 1;
    visibility: visible;
}

.capsule-content {
    background: var(--capsule-bg);
    border-radius: 30px;
    padding: 12px 20px; /* Reduced padding to minimize blank space */
    box-shadow: 0 4px 20px var(--capsule-shadow);
    border: 1px solid var(--border-color);
    font-size: 0.9em;
    line-height: 1.4;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0;
    text-align: center;
    color: var(--stat-text-color);
}

.capsule-separator {
    margin: 0 8px;
    color: var(--stat-text-color);
    flex-shrink: 0;
}

.blog-link, .cyrene-link, .email-link {
    color: var(--link-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.blog-link:hover, .cyrene-link:hover, .email-link:hover {
    color: var(--link-hover-color);
    text-decoration: underline;
}

.month-title-large {
    font-size: 1.5em;
    margin-bottom: 10px;
}

.month-title-message {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.month-title-line1,
.month-title-line2 {
    font-size: 0.9em;
    line-height: 1.4;
    margin-bottom: 3px;
}

.lucky-flower-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-left: 10px; /* Add some space from the month text */
    color: white;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
}

.lucky-flower-name {
    font-size: 1.5em; /* Larger font for flower name */
    margin-bottom: 2px;
}

.lucky-flower-label {
    font-size: 0.8em; /* Smaller font for "本月幸运花" */
}

.calendar-section {
    grid-area: calendar;
    padding: 20px;
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
}

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

.nav-btn {
    color: white; /* Keep white text for better contrast with background */
    border: none;
    padding: 10px 15px;
    font-size: 1.2em;
    cursor: pointer;
    border-radius: 5px;
    transition: background 0.3s;
    box-shadow: 0 2px 5px var(--shadow-color);
    background: var(--current-theme-color); /* 默认使用当前月份主题色 */
}

.nav-btn:hover {
    opacity: 0.8;
}

/* 在暗色模式下，导航按钮使用当前月份的主题色并增加亮度以提高可见性 */
[data-theme="dark"] .nav-btn {
    background: var(--current-theme-color); /* 使用当前月份主题色 */
    opacity: 0.9; /* 提高可见性 */
}

#currentMonthYear {
    font-size: 1.5em;
    color: var(--current-theme-color); /* 默认使用当前月份主题色 */
    text-shadow: 0 0 2px rgba(255, 255, 255, 0.7);
}

/* 在暗色模式下，月份标题使用当前月份的主题色 */
[data-theme="dark"] #currentMonthYear {
    color: var(--current-theme-color); /* 使用当前月份主题色 */
    text-shadow: 0 0 3px rgba(0, 0, 0, 0.5); /* 确保文字在暗色背景下清晰可见 */
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-template-rows: 40px 1fr;  /* 明确指定行高，第二行占剩余空间 */
    gap: 2px;
    background: var(--calendar-day-bg);  /* Slightly transparent for better theme integration */
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    height: 100%;
    overflow: hidden; /* Prevent overflow in the grid itself */
}

.day-header {
    background: var(--day-header-bg);
    padding: 10px;
    text-align: center;
    font-weight: bold;
    border-top: 1px solid var(--border-color);
    border-left: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--header-text-color);
}

.day-header:first-child {
    border-left: none;
}

#calendarDays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-template-rows: repeat(6, 1fr);  /* 6行日期 */
    gap: 2px;
    /* 定位在网格的第2行，横跨所有列 */
    grid-row: 2;
    grid-column: 1 / -1;
    overflow-y: auto; /* Allow scrolling for calendar days if needed */
    max-height: none; /* Reset max-height for landscape mode */
}

.calendar-day {
    background: var(--calendar-day-bg);
    padding: 10px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    border-left: 1px solid var(--border-color);
    color: var(--day-text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    /* 确保元素在网格中的行为 */
    overflow: hidden;
}

.calendar-day:first-child {
    border-left: none;
}

.calendar-day.empty {
    background: var(--calendar-day-empty-bg);
}

.calendar-day.weekend {
    /* This will be overridden by JavaScript */
    background: var(--weekend-day-bg);
}

.infinity-day {
    font-weight: bold;
    font-size: 1.2em;
}

/* 月份切换动画 */
.calendar-section {
    position: relative;
    overflow: hidden;
}

.slide-left {
    animation: slideLeft 0.3s ease-in-out;
}

.slide-right {
    animation: slideRight 0.3s ease-in-out;
}

@keyframes slideLeft {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50px);
    }
}

@keyframes slideRight {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(50px);
    }
}

/* Calendar fade in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.calendar-fade-in {
    animation: fadeIn 0.5s ease-in forwards;
}

.footer {
    grid-area: footer;
    padding: 10px 20px;
    background: var(--footer-bg);
    font-size: 0.9em;
    color: var(--info-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    width: 100%;
}

.info-container {
    display: flex;
    gap: 0;
    align-items: center;
}

.footer-separator {
    margin: 0 8px;
    color: var(--info-color);
    flex-shrink: 0;
}

.info-item {
    position: relative;
    display: inline-block;
}

.info-label {
    cursor: pointer;
    color: var(--text-color);
    font-weight: 600;
    text-decoration: underline;
    text-decoration-style: dotted;
}

.info-label:hover {
    color: var(--link-color);
}

.info-tooltip {
    position: absolute;
    bottom: 100%;
    left: 0;
    background: var(--tooltip-bg);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 8px 12px; /* Reduced padding to minimize blank space */
    box-shadow: 0 2px 8px var(--shadow-color);
    z-index: 10;
    width: max-content; /* Only as wide as the content */
    max-width: 300px; /* But with a reasonable max width */
    font-size: 0.9em;
    line-height: 1.4;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s, transform 0.3s, visibility 0.3s;
}

.info-item:hover .info-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Adjust tooltip for capsule footer */
.capsule-content .info-tooltip {
    width: max-content; /* Only as wide as the content */
    max-width: 250px; /* Reasonable max width for capsule tooltips */
    padding: 6px 10px; /* Slightly smaller padding */
}

.links {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    align-items: center;
    flex-wrap: wrap; /* Allow wrapping on small screens */
    min-width: 0; /* Allow shrinking */
}

.links a {
    white-space: nowrap; /* Prevent text wrapping within links */
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Responsive layout for portrait mode */
@media screen and (max-width: 768px) {
    .footer {
        flex-direction: column;
        gap: 5px;
        align-items: stretch;
    }

    .copyright {
        text-align: center;
        order: 2;
    }

    .links {
        justify-content: center;
        order: 1;
    }

    .calendar-container {
        height: 85vh; /* Adjust height to account for footer stats */
    }
}

.blog-link, .cyrene-link, .email-link {
    color: #eb7ea3;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.blog-link:hover, .cyrene-link:hover, .email-link:hover {
    color: #d65c8a;
    text-decoration: underline;
}

.footer_stat {
    text-align: center;
    color: #666;
    font-size: 0.9em;
    padding: 10px 20px;
    background: rgba(240, 240, 240, 0.9);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    margin: 0;
    box-sizing: border-box;
}

/* Adjust body padding to prevent content from being hidden behind fixed footer stat */
body {
    padding-bottom: 50px; /* Adjust based on footer_stat height */
    font-family: Arial, sans-serif;
    background-image: url('/img/amphoreus.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.stats, .copyright, .usage {
    margin: 0;
}

/* Portrait mode - when height is much greater than width */
@media screen and (max-height: 600px), screen and (max-width: 767px) {
    .calendar-container {
        height: auto;
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        min-height: 100vh;
        max-height: none;
        grid-template-areas:
            "image"
            "calendar"
            "footer";
        overflow-y: auto; /* Allow scrolling in portrait mode */
    }

    .image-section {
        border-radius: 15px 15px 0 0;
        min-height: 200px;
        height: 40vh; /* Use viewport height to ensure proper sizing */
        max-height: 300px;
    }

    .month-display {
        bottom: 15px;
    }

    .month-text {
        font-size: 2em;
    }

    .month-title {
        top: 15px;
    }

    .calendar-grid {
        grid-template-rows: 30px 1fr; /* Ensure calendar fills available space */
        height: auto; /* Allow auto height in portrait */
    }

    #calendarDays {
        max-height: 250px; /* Limit max height in portrait mode */
    }

    .footer {
        display: none; /* Hide footer in portrait mode */
        flex-direction: column;
        gap: 5px;
        padding: 10px 20px;
    }

    .info-container {
        display: flex;
        justify-content: center;
        gap: 8px; /* Use separator spacing */
        order: 1; /* Put info container first */
        margin-bottom: 5px;
    }

    .footer-separator {
        margin: 0 4px; /* Reduce margin in portrait */
    }

    .links {
        display: flex;
        justify-content: center;
        gap: 10px;
        order: 2; /* Put links second */
        flex-wrap: wrap;
    }

    body {
        align-items: flex-start; /* Align to top in portrait mode to allow scrolling */
        padding: 10px; /* Reduce padding in portrait */
    }
}

/* Specific portrait mode style for 400px width */
@media screen and (max-width: 400px) and (orientation: portrait) {
    .calendar-container {
        height: auto;
        grid-template-rows: 35vh 1fr auto;
        grid-template-areas:
            "image"
            "calendar"
            "footer";
        border-radius: 15px;
    }

    .image-section {
        height: 35vh;
        max-height: none;
    }

    .calendar-grid {
        height: 100%;
    }

    #calendarDays {
        max-height: none;
        height: 100%;
    }

    /* Hide footer information and links in portrait mode on small screens */
    .footer {
        display: none;
    }
}