/* ========================================
   Pico Blog Theme - Custom Styles
   Built on Pico CSS v2
   ======================================== */

/* --- Theme Toggle --- */
.theme-toggle-wrapper {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 1000;
}

.theme-toggle-wrapper button {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--card-box-shadow);
    backdrop-filter: blur(8px);
    background: var(--card-background-color);
    border: 1px solid var(--muted-border-color);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.theme-toggle-wrapper button:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.theme-toggle-wrapper button i {
    font-size: 1.2rem;
    color: var(--primary);
}

/* --- Header / Brand --- */
.site-header {
    padding-top: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--muted-border-color);
    margin-bottom: 2rem;
}

.site-brand {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
    text-decoration: none;
}

.site-brand small {
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--muted-color);
    margin-top: -2px;
}

.site-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links li {
    margin: 0;
}

.nav-links a {
    text-decoration: none;
    padding: 0.4rem 0.75rem;
    border-radius: var(--border-radius);
    transition: background 0.2s;
    font-size: 0.95rem;
}

.nav-links a:hover {
    background: var(--primary-focus);
}

.search-toggle-li a {
    font-size: 1rem;
    padding: 0.4rem 0.5rem;
}

/* --- Search Bar --- */
.search-bar {
    padding: 1rem 0;
}

.search-bar form {
    display: flex;
    gap: 0.5rem;
}

.search-bar input[type="search"] {
    flex: 1;
}

/* --- Main Layout Grid --- */
.main-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2.5rem;
    align-items: start;
}

@media (max-width: 768px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
    .sidebar {
        order: -1;
    }
}

/* --- Breadcrumb --- */
nav[aria-label="breadcrumb"] {
    margin-bottom: 1.5rem;
    padding: 0.5rem 0;
    font-size: 0.9rem;
    color: var(--muted-color);
}

nav[aria-label="breadcrumb"] a {
    text-decoration: none;
}

/* --- Post Cards (Listing) --- */
.post-card {
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    border-radius: var(--card-border-radius);
    background: var(--card-background-color);
    box-shadow: var(--card-box-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.post-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
}

.post-featured {
    margin: -1.5rem -1.5rem 1.5rem;
    border-radius: var(--card-border-radius) var(--card-border-radius) 0 0;
    overflow: hidden;
    max-height: 400px;
}

.post-featured img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

.post-video {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}

.post-video iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.post-audio iframe {
    width: 100%;
    height: 166px;
    border: none;
}

.post-quote {
    margin: 0 0 1rem;
    padding: 1rem 1.5rem;
    font-style: italic;
    font-size: 1.2rem;
    border-left: 4px solid var(--primary);
    color: var(--muted-color);
}

.post-quote i {
    color: var(--primary);
    font-size: 0.9rem;
}

.post-title {
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.post-title a {
    text-decoration: none;
    color: var(--h1-color);
}

.post-title a:hover {
    color: var(--primary);
}

.post-title i.fa-external-link-alt {
    font-size: 0.7em;
    vertical-align: super;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;
    font-size: 0.875rem;
    color: var(--muted-color);
    margin-bottom: 1rem;
}

.post-meta a {
    text-decoration: none;
    color: var(--muted-color);
}

.post-meta a:hover {
    color: var(--primary);
}

.post-meta i {
    margin-right: 0.3rem;
}

.post-content {
    line-height: 1.8;
    color: var(--color);
}

.post-content p {
    margin-bottom: 1rem;
}

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: 1rem 0;
}

.post-tags {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--muted-color);
}

.post-tags a {
    text-decoration: none;
    display: inline-block;
    padding: 0.2rem 0.6rem;
    margin: 0.2rem;
    border-radius: var(--border-radius);
    background: var(--primary-focus);
    color: var(--primary);
    font-size: 0.85rem;
}

.post-tags a:hover {
    background: var(--primary);
    color: var(--primary-inverse);
}

.post-footer {
    margin-top: 1.5rem;
}

.post-footer a {
    text-decoration: none;
}

/* --- Category Header --- */
.category-header {
    position: relative;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--card-background-color);
    border-radius: var(--card-border-radius);
    box-shadow: var(--card-box-shadow);
}

.category-header .feed-link {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.2rem;
    color: var(--primary);
}

/* --- Single Post --- */
.post-single {
    background: var(--card-background-color);
    border-radius: var(--card-border-radius);
    box-shadow: var(--card-box-shadow);
    padding: 2rem;
    margin-bottom: 2rem;
}

.post-single .post-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--muted-border-color);
}

.post-single .post-title {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.admin-tab {
    margin-bottom: 1rem;
}

/* --- Post Navigation --- */
.post-nav-footer {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--muted-border-color);
}

.post-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.post-nav a {
    flex: 1;
    text-decoration: none;
    padding: 1rem;
    border-radius: var(--border-radius);
    background: var(--card-background-color);
    border: 1px solid var(--muted-border-color);
    transition: background 0.2s;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.post-nav a:hover {
    background: var(--primary-focus);
    border-color: var(--primary);
}

.post-nav a small {
    color: var(--muted-color);
    font-size: 0.8rem;
}

.post-nav a span {
    font-weight: 600;
    color: var(--h3-color);
}

.next-post {
    text-align: right;
}

/* --- Comments --- */
.post-comments {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--muted-border-color);
}

/* --- Static Page --- */
.static-page {
    background: var(--card-background-color);
    border-radius: var(--card-border-radius);
    box-shadow: var(--card-box-shadow);
    padding: 2rem;
}

/* --- Profile Page --- */
.profile-page {
    background: var(--card-background-color);
    border-radius: var(--card-border-radius);
    box-shadow: var(--card-box-shadow);
    padding: 2rem;
}

.profile-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--muted-border-color);
}

.post-list-item {
    padding: 1rem 0;
    border-bottom: 1px solid var(--muted-border-color);
}

.post-list-item:last-child {
    border-bottom: none;
}

.post-list-item h4 {
    margin-bottom: 0.25rem;
}

.post-list-item h4 a {
    text-decoration: none;
}

/* --- Error Page --- */
.error-page {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--card-background-color);
    border-radius: var(--card-border-radius);
    box-shadow: var(--card-box-shadow);
}

.error-page h1 {
    font-size: 6rem;
    color: var(--primary);
    margin-bottom: 0;
    line-height: 1;
}

.error-page h2 {
    margin-top: 0.5rem;
}

.error-page form {
    max-width: 400px;
    margin: 2rem auto;
}

.back-home {
    margin-top: 1.5rem;
}

.back-home a {
    text-decoration: none;
}

/* --- No Posts --- */
.no-posts {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--card-background-color);
    border-radius: var(--card-border-radius);
    box-shadow: var(--card-box-shadow);
}

/* --- Pagination --- */
.pagination-nav {
    margin: 2rem 0;
    text-align: center;
}

.pagination-nav ul {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.pagination-nav li {
    margin: 0;
}

.pagination-nav a,
.pagination-nav span {
    display: inline-block;
    padding: 0.5rem 0.85rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    border: 1px solid var(--muted-border-color);
    color: var(--color);
    font-size: 0.9rem;
    transition: all 0.2s;
}

.pagination-nav a:hover {
    background: var(--primary-focus);
    border-color: var(--primary);
    color: var(--primary);
}

.pagination-nav .active span,
.pagination-nav .current {
    background: var(--primary);
    color: var(--primary-inverse);
    border-color: var(--primary);
}

.pagination-nav .disabled span {
    opacity: 0.4;
    cursor: not-allowed;
}

/* --- Sidebar --- */
.sidebar {
    position: sticky;
    top: 1.5rem;
}

.sidebar-inner {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-card {
    padding: 1.25rem;
    background: var(--card-background-color);
    border-radius: var(--card-border-radius);
    box-shadow: var(--card-box-shadow);
}

.sidebar-card hgroup {
    margin-bottom: 0.75rem;
}

.sidebar-card h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.sidebar-card p {
    font-size: 0.875rem;
    color: var(--muted-color);
    margin: 0;
}

.sidebar-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-list li {
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--muted-border-color);
}

.sidebar-list li:last-child {
    border-bottom: none;
}

.sidebar-list a {
    text-decoration: none;
    font-size: 0.9rem;
    color: var(--color);
    transition: color 0.2s;
    display: block;
}

.sidebar-list a:hover {
    color: var(--primary);
}

.social-links {
    margin-top: 0.5rem;
}

.social-links a {
    display: inline-block;
    margin-right: 0.5rem;
    font-size: 1.1rem;
    color: var(--muted-color);
    transition: color 0.2s;
}

.social-links a:hover {
    color: var(--primary);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.tag-cloud a {
    text-decoration: none;
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: var(--border-radius);
    background: var(--primary-focus);
    color: var(--primary);
    font-size: 0.85rem;
    transition: all 0.2s;
}

.tag-cloud a:hover {
    background: var(--primary);
    color: var(--primary-inverse);
}

/* --- Footer --- */
.site-footer {
    margin-top: 3rem;
    padding: 3rem 0 1.5rem;
    background: var(--card-background-color);
    border-top: 1px solid var(--muted-border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-grid h5 {
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.footer-grid p {
    font-size: 0.9rem;
    color: var(--muted-color);
}

.footer-grid ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-grid li {
    margin-bottom: 0.4rem;
}

.footer-grid a {
    text-decoration: none;
    font-size: 0.9rem;
    color: var(--muted-color);
    transition: color 0.2s;
}

.footer-grid a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--muted-border-color);
    font-size: 0.85rem;
    color: var(--muted-color);
}

.footer-bottom p {
    margin: 0.25rem 0;
}

.powered-by a {
    text-decoration: none;
    color: var(--primary);
}

/* --- Responsive tweaks --- */
@media (max-width: 576px) {
    .site-header {
        padding-top: 1rem;
    }
    
    .site-nav {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .post-single {
        padding: 1.25rem;
    }
    
    .post-card {
        padding: 1.25rem;
    }
    
    .post-featured {
        margin: -1.25rem -1.25rem 1rem;
    }
    
    .post-single .post-title {
        font-size: 1.5rem;
    }
    
    .post-nav {
        flex-direction: column;
    }
    
    .next-post {
        text-align: left;
    }
    
    .sidebar {
        position: static;
    }
}

/* --- Print --- */
@media print {
    .theme-toggle-wrapper,
    .search-bar,
    .sidebar,
    .site-footer {
        display: none;
    }
    
    .main-grid {
        display: block;
    }
}