:root {
    --bg-color: #ffffff;
    --text-color: #000000;
    --secondary-color: #666666;
    --link-color: #000000;
    --active-link-color: #000000;
    --date-color: #999999;
    --button-bg: #000000;
    --button-text: #ffffff;
    --modal-bg: rgba(0, 0, 0, 0.4);
    --close-icon-bg: #f1f1f1;
    --card-border: rgba(0, 0, 0, 0.1);
    --card-hover: rgba(0, 0, 0, 0.02);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px 40px 20px;
    padding-top: 80px;
}

header {
    display: flex;
    flex-direction: column;
}

h1.bookshelf-title {
    font-size: var(--title-font-size);
    color: var(--title-color);
    margin: 0;
    text-align: left;
}

header p {
    font-size: 14px;
    color: var(--secondary-color);
    margin: 0;
}

h2 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.blog-intro {
    font-size: 16px;
    color: var(--secondary-color);
    margin: 10px 0 40px 0;
}

.blog-card {
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.blog-card:hover {
    background-color: var(--card-hover);
    transform: translateY(-2px);
}

.blog-content {
    flex: 1;
}

.blog-excerpt {
    color: var(--secondary-color);
    margin: 12px 0;
    line-height: 1.6;
}

.post-meta {
    display: flex;
    gap: 16px;
    color: var(--date-color);
    font-size: 13px;
}

.post-meta i {
    margin-right: 4px;
}

.blog-posts article {
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.blog-posts h3 {
    font-size: 14px;
    font-weight: 600;
    margin: 0 0 5px 0;
}

.blog-posts p {
    font-size: 14px;
    margin: 0 0 5px 0;
    color: var(--secondary-color);
}

.blog-posts .date {
    font-size: 14px;
    color: var(--date-color);
}

.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: var(--bg-color);
    transition: background-color 0.3s ease;
}

.back-button {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 16px;
    padding: 8px 16px;
    border-radius: 30px;
    background: transparent;
    border: 1px solid var(--text-color);
    transition: all 0.3s ease;
}

.back-button:hover {
    background: var(--text-color);
    color: var(--bg-color);
    transform: translateX(-5px);
}

.back-button i {
    transition: transform 0.3s ease;
}

.back-button:hover i {
    transform: translateX(-3px);
}

.dark-mode-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--text-color);
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.dark-mode-toggle:hover {
    background: var(--text-color);
    color: var(--bg-color);
    transform: rotate(360deg);
}

.read-button {
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 20px;
    padding: 8px 20px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: flex-start;
    font-weight: 500;
}

.read-button:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: var(--modal-bg);
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-content {
    background-color: var(--bg-color);
    margin: 15% auto;
    padding: 20px;
    border: none;
    width: 80%;
    max-width: 800px;
    border-radius: 15px;
    font-size: 14px;
    font-family: inherit;
    transform: scale(0.7);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.modal.show {
    opacity: 1;
}

.modal.show .modal-content {
    transform: scale(1);
    opacity: 1;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.close:hover {
    background-color: var(--close-icon-bg);
}

.post-title {
    margin-bottom: 5px;
}

.post-meta {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--secondary-color);
}

.post-meta .author-icon {
    margin-right: 5px;
}

.post-meta .author {
    margin-right: 10px;
}

body.dark-mode {
    --bg-color: #1a1a1a;
    --text-color: #ffffff;
    --secondary-color: #b3b3b3;
    --link-color: #ffffff;
    --active-link-color: #ffffff;
    --date-color: #999999;
    --button-bg: #ffffff;
    --button-text: #000000;
    --modal-bg: rgba(0, 0, 0, 0.7);
    --card-border: rgba(255, 255, 255, 0.1);
    --card-hover: rgba(255, 255, 255, 0.05);
}

body.dark-mode .dark-mode-toggle {
    background: var(--bg-color);
    color: var(--text-color);
    border-color: var(--text-color);
}

body.dark-mode .dark-mode-toggle:hover {
    background: var(--text-color);
    color: var(--bg-color);
}

body.dark-mode .modal-content {
    background-color: var(--bg-color);
    color: var(--text-color);
}

.theme-button {
    background-color: var(--button-bg, #000000);
    color: var(--button-text, #ffffff);
    border: none;
    border-radius: 10px; /* Updated border-radius to 10px */
    padding: 10px 30px; /* Increased padding for a larger button */
    font-size: 12px; /* Keeping the font size the same */
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, opacity 0.3s ease;
    
    /* Centering styles */
    display: block;
    margin: 20px auto; /* Adjust top and bottom margin as needed */
    width: fit-content;
}

.theme-button .home-icon {
    margin-right: 8px; /* Spacing between the icon and the text */
}

.theme-button:hover {
    opacity: 0.8;
}

body.dark-mode .theme-button {
    background-color: var(--button-bg, #ffffff);
    color: var(--button-text, #000000);
}

.blog-header {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.blog-header h3 {
    margin: 0;
}

.tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.tag {
    font-size: 9px;
    padding: 2px 5px;
    border-radius: 4px;
    font-weight: 500;
    letter-spacing: 0.2px;
}

.tag.entertainment {
    background-color: rgba(146, 83, 161, 0.08);
    color: #9253a1;
}

.tag.review {
    background-color: rgba(49, 130, 206, 0.08);
    color: #3182ce;
}

.tag.design {
    background-color: rgba(214, 158, 46, 0.08);
    color: #d69e2e;
}

.tag.tech {
    background-color: rgba(72, 187, 120, 0.08);
    color: #48bb78;
}

body.dark-mode .tag.entertainment {
    background-color: rgba(146, 83, 161, 0.15);
    color: #d6bcdb;
}

body.dark-mode .tag.review {
    background-color: rgba(49, 130, 206, 0.15);
    color: #bde0ff;
}

body.dark-mode .tag.design {
    background-color: rgba(214, 158, 46, 0.15);
    color: #f0dba5;
}

body.dark-mode .tag.tech {
    background-color: rgba(72, 187, 120, 0.15);
    color: #b7ebd1;
}