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

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --text-primary: #000000;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    --hover-bg: #f5f5f5;
    --accent: #000000;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
}

.container {
    display: flex;
    height: 100vh;
    width: 100%;
}

/* Sidebar Styles */
.sidebar {
    width: 350px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-primary);
}

.header-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.sidebar-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    letter-spacing: -0.5px;
}

.social-icons {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.social-icons a {
    color: var(--text-primary);
    transition: opacity 0.2s, transform 0.2s;
    display: flex;
    align-items: center;
}

.social-icons a:hover {
    opacity: 0.6;
    transform: translateY(-2px);
}

.social-icons svg {
    width: 20px;
    height: 20px;
}

.search-box {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s;
}

.search-box:focus {
    border-color: var(--accent);
}

.search-box::placeholder {
    color: var(--text-secondary);
}

/* Posts List */
.posts-list {
    overflow-y: auto;
    padding: 1.5rem 2rem;
}

.year-section {
    margin-bottom: 3rem;
}

.year-header {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.post-link {
    display: block;
    padding: 0.5rem 0;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s;
    cursor: pointer;
    line-height: 1.5;
    border-left: 2px solid transparent;
    padding-left: 0.75rem;
    margin-left: -0.75rem;
}

.post-link:hover {
    color: var(--text-secondary);
    border-left-color: var(--text-primary);
}

.post-link.active {
    color: var(--text-secondary);
    border-left-color: var(--text-primary);
}

.post-link.no-title {
    color: #999999;
    font-style: italic;
}

.post-link.no-title:hover {
    color: #666666;
}

/* Content Area */
.content {
    flex: 1;
    overflow-y: auto;
    padding: 3rem 4rem;
    max-width: 800px;
}

.welcome-message {
    margin-top: 4rem;
}

.welcome-message h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.welcome-message p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.welcome-social-icons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.welcome-social-icons a {
    color: var(--text-primary);
    transition: opacity 0.2s, transform 0.2s;
    display: flex;
    align-items: center;
}

.welcome-social-icons a:hover {
    opacity: 0.6;
    transform: translateY(-2px);
}

.welcome-social-icons svg {
    width: 24px;
    height: 24px;
}

/* Post Content */
.post-content time {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.post-content #postBody {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-primary);
}

.post-content #postBody p {
    margin-bottom: 1.5rem;
}

.post-content #postBody h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.post-content #postBody ul,
.post-content #postBody ol {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.post-content #postBody li {
    margin-bottom: 0.5rem;
}

.post-content #postBody a {
    color: var(--text-primary);
    text-decoration: underline;
}

.post-content #postBody a:hover {
    color: var(--text-secondary);
}

.post-content #postBody blockquote {
    border-left: 3px solid var(--border-color);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    color: var(--text-secondary);
    font-style: italic;
}

.post-content #postBody code {
    background-color: var(--bg-secondary);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.post-content #postBody pre {
    background-color: var(--bg-secondary);
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

.post-content #postBody pre code {
    background-color: transparent;
    padding: 0;
}

/* Post Images */
.post-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 2rem;
    display: block;
}

/* Scrollbar Styles */
.posts-list::-webkit-scrollbar,
.content::-webkit-scrollbar {
    width: 8px;
}

.posts-list::-webkit-scrollbar-track,
.content::-webkit-scrollbar-track {
    background: transparent;
}

.posts-list::-webkit-scrollbar-thumb,
.content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.posts-list::-webkit-scrollbar-thumb:hover,
.content::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* No Results Message */
.no-results {
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Search Highlighting */
mark {
    background-color: #ffeb3b;
    padding: 2px 4px;
    border-radius: 2px;
    font-weight: 500;
    color: #000;
}

/* Mobile Controls Container - Top Bar */
.mobile-controls {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1001;
    align-items: center;
    padding: 0 1rem;
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    transition: background-color 0.2s;
    border-radius: 8px;
}

.sidebar-toggle:hover {
    background-color: var(--hover-bg);
}

.sidebar-toggle:active {
    background-color: var(--border-color);
}

.sidebar-toggle svg {
    display: block;
    color: var(--text-primary);
}

/* Sidebar overlay for mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.show {
    display: block;
    opacity: 1;
}

/* Share Button */
.share-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
    padding: 0.75rem 1.25rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.share-button:hover {
    background-color: var(--hover-bg);
    border-color: var(--text-primary);
}

.share-button svg {
    color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        overflow: auto;
    }

    .container {
        flex-direction: column;
        height: auto;
        min-height: 100vh;
    }

    /* Show mobile top bar */
    .mobile-controls {
        display: flex;
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: 56px;
        width: 80%;
        max-width: 320px;
        height: calc(100vh - 56px);
        height: calc(100dvh - 56px); /* Dynamic viewport height for mobile */
        border-right: 1px solid var(--border-color);
        border-bottom: none;
        background-color: var(--bg-secondary);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 999;
        box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
        overflow-y: auto;
        overflow-x: hidden;
        display: flex;
        flex-direction: column;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-header {
        padding: 1.5rem !important;
        flex-shrink: 0 !important;
        position: sticky !important;
        top: 0 !important;
        z-index: 10 !important;
        background-color: var(--bg-primary) !important;
        border-bottom: 1px solid var(--border-color) !important;
    }

    .sidebar-header h1 {
        font-size: 1.4rem !important;
        color: var(--text-primary) !important;
        margin: 0 !important;
    }

    .header-title {
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
        margin-bottom: 1rem !important;
    }

    .social-icons {
        display: flex !important;
        gap: 0.75rem !important;
        align-items: center !important;
    }

    .social-icons a {
        display: flex !important;
        color: var(--text-primary) !important;
    }

    .social-icons svg {
        width: 20px !important;
        height: 20px !important;
        fill: currentColor !important;
    }

    .posts-list {
        padding: 1rem 1.5rem;
        max-height: calc(100vh - 200px);
    }

    .content {
        padding: calc(56px + 1rem) 1.5rem 2rem 1.5rem;
        max-width: 100%;
        height: auto;
        overflow-y: visible;
    }

    .post-content h2 {
        font-size: 1.75rem;
        line-height: 1.3;
    }

    .post-content #postBody {
        font-size: 1rem;
        line-height: 1.65;
    }

    .welcome-message {
        margin-top: 2rem;
    }

    .welcome-message h2 {
        font-size: 1.75rem;
    }

    .welcome-message p {
        font-size: 1rem;
    }

    .social-icons svg {
        width: 22px;
        height: 22px;
    }

    /* Make post links easier to tap on mobile */
    .post-link {
        padding: 0.75rem 0.75rem;
        font-size: 1rem;
    }

    .year-header {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .sidebar-header {
        padding: 1rem;
    }

    .sidebar-header h1 {
        font-size: 1.2rem;
    }

    .posts-list {
        padding: 1rem;
    }

    .post-content h2 {
        font-size: 1.5rem;
    }

    .post-content #postBody {
        font-size: 0.95rem;
    }

    .content {
        padding: calc(56px + 1rem) 1rem 1.5rem 1rem;
    }

    .search-box {
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .social-icons {
        gap: 0.5rem;
    }

    .social-icons svg {
        width: 20px;
        height: 20px;
    }
}