:root {
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #1f2937;
    --link-color: #0d6efd;
    --header-bg: #ffffff;
    --tag-bg: #e7f1ff;
    --tag-hover-shadow: rgba(0, 0, 0, 0.12);
    --code-bg: #f6f8fa;
    --border-color: #d0d7de;
    --bs-body-bg: var(--bg-color);
    --bs-body-color: var(--text-color);
    --bs-secondary-color: #4b5563;
    --bs-tertiary-color: #6b7280;
    --bs-border-color: var(--border-color);
}

[data-theme="dark"] {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --text-color: #e6edf3;
    --link-color: #58a6ff;
    --header-bg: #161b22;
    --tag-bg: #1f6feb20;
    --tag-hover-shadow: rgba(255, 255, 255, 0.1);
    --code-bg: #161b22;
    --border-color: #30363d;
    --bs-body-bg: var(--bg-color);
    --bs-body-color: var(--text-color);
    --bs-secondary-color: #c1cad4;
    --bs-tertiary-color: #a5b1bf;
    --bs-border-color: var(--border-color);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.text-body-secondary,
.post-meta {
    color: var(--bs-secondary-color) !important;
}

a {
    color: var(--link-color);
}

.site-header {
    background: var(--header-bg);
    border-color: var(--border-color) !important;
    z-index: 1030;
    backdrop-filter: saturate(1.1) blur(0.25rem);
}

.navbar-brand,
.nav-link {
    color: var(--text-color);
}

.nav-link:hover,
.nav-link:focus,
.nav-link.active {
    color: var(--link-color) !important;
}

.nav-link.active {
    font-weight: 600;
}

.navbar-toggler {
    border-color: var(--border-color);
    color: var(--text-color);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

@media (min-width: 992px) {
    .navbar > .container-lg {
        position: relative;
    }

    .navbar-desktop-center {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        width: auto;
        display: flex !important;
    }

    .navbar-desktop-center .navbar-nav {
        flex-direction: row;
    }
}

.card {
    background: var(--card-bg);
    border: 0.0625rem solid var(--border-color) !important;
}

.badge.text-bg-secondary {
    background: var(--tag-bg) !important;
    color: var(--link-color) !important;
    border: 0.0625rem solid var(--border-color);
}

.form-select,
.form-control {
    background: var(--card-bg);
    color: var(--text-color);
    border-color: var(--border-color);
}

.form-select:focus,
.form-control:focus {
    border-color: var(--link-color);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.2);
}

.theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1050;
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--tag-bg);
    border: 0.0625rem solid var(--border-color);
    color: var(--text-color);
}

.theme-toggle:hover {
    box-shadow: 0 0.125rem 0.5rem var(--tag-hover-shadow);
}

.avatar-wrapper {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    border: 0.0625rem solid var(--border-color);
    overflow: hidden;
    display: inline-flex;
}

.avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

html[data-theme="dark"] .avatar {
    filter: invert(1);
}

.post-content {
    max-width: 54rem;
}

.post-body {
    line-height: 1.7;
}

.post-body h1,
.post-body h2,
.post-body h3 {
    margin-top: 1.75rem;
    margin-bottom: 0.75rem;
}

.post-body img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
}

.post-body pre {
    background: var(--code-bg);
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
}

.post-body code {
    background: var(--code-bg);
    padding: 0.1rem 0.35rem;
    border-radius: 0.25rem;
}

.post-body pre code {
    padding: 0;
    background: transparent;
}

.technologies,
.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

@media (max-width: 991.98px) {
    .theme-toggle {
        top: 4.5rem;
        right: 0.75rem;
    }
}

.tech-tag,
.social-tag {
    background: var(--tag-bg);
    color: var(--text-color);
    border-color: var(--border-color) !important;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.tech-tag:hover {
    transform: translateY(-0.125rem);
    box-shadow: 0 0.125rem 0.3125rem var(--tag-hover-shadow);
    color: var(--link-color);
}

.social-tag:hover {
    transform: translateY(-0.125rem);
    box-shadow: 0 0.125rem 0.3125rem var(--tag-hover-shadow);
    opacity: 0.85;
}

.tech-tag i,
.social-tag i {
    color: var(--link-color);
}

/* Site logo */
.site-logo {
    width: 6rem;
    height: 6rem;
    object-fit: contain;
}

.nav-logo {
    width: 4rem;
    height: 4rem;
    object-fit: contain;
}

/* Documentation layout */
.doc-layout {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.doc-sidebar {
    width: 14rem;
    flex-shrink: 0;
    position: sticky;
    top: 5rem;
}

.doc-nav-heading {
    letter-spacing: 0.05em;
}

.doc-nav-link {
    display: block;
    padding: 0.3rem 0.5rem;
    border-radius: 0.375rem;
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: background 0.15s ease, color 0.15s ease;
}

.doc-nav-link:hover {
    background: var(--tag-bg);
    color: var(--link-color);
}

.doc-nav-link.active {
    background: var(--tag-bg);
    color: var(--link-color);
    font-weight: 600;
}

.doc-content {
    flex: 1;
    min-width: 0;
}

.doc-card {
    transition: box-shadow 0.15s ease;
}

.doc-card:hover {
    box-shadow: 0 0.25rem 0.75rem var(--tag-hover-shadow) !important;
}


.feature-item {
    border-radius: 12px;
    transition: all 0.2s ease-in-out;
}

.feature-item:hover {
    background-color: rgba(0, 0, 0, 0.03);
    transform: translateY(-4px);
}