:root {
    --radius: 18px;
    --ink: #0c1523;
    --ink-soft: #4b5668;
    --brand: #1c8cff;
    --brand-strong: #0f6ad1;
    --accent: #f6b351;
    --surface: #fcfdff;
    --surface-2: #f3f6fb;
    --bg: #f4f8ff;
    --border: rgba(12, 21, 35, 0.12);
    --border-strong: rgba(28, 140, 255, 0.26);
    --shadow: 0 16px 32px rgba(12, 18, 28, 0.1);
    --nav-bg: rgba(255, 255, 255, 0.92);
    --nav-shadow: 0 10px 24px rgba(8, 16, 26, 0.06);
    --grid-line: rgba(27, 123, 255, 0.07);
    --chip-bg: rgba(27, 123, 255, 0.08);
    --badge-bg: rgba(27, 123, 255, 0.08);
    --title-size: clamp(2.2rem, 3vw + 1.4rem, 3.6rem);
    --h2-size: clamp(1.5rem, 1.6vw + 1rem, 2.1rem);
    --body-size: 1rem;
    --body-line: 1.7;
}

[data-bs-theme="dark"] {
    --ink: #e9eef5;
    --ink-soft: #aeb9c8;
    --surface: #0c1019;
    --surface-2: #111827;
    --bg: #080d14;
    --border: rgba(233, 238, 245, 0.14);
    --border-strong: rgba(28, 140, 255, 0.36);
    --shadow: 0 22px 50px rgba(0, 0, 0, 0.65);
    --nav-bg: rgba(8, 13, 20, 0.92);
    --nav-shadow: 0 14px 30px rgba(0, 0, 0, 0.55);
    --grid-line: rgba(28, 140, 255, 0.16);
    --chip-bg: rgba(28, 140, 255, 0.15);
    --badge-bg: rgba(28, 140, 255, 0.18);
}

html {
    scroll-behavior: smooth;
    scrollbar-gutter: stable;
}

body {
    font-family: "Open Sans", system-ui, -apple-system, Segoe UI, sans-serif;
    color: var(--ink);
    font-size: var(--body-size);
    line-height: var(--body-line);
}

input.form-control,
textarea.form-control,
select.form-select {
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: none;
    background: var(--surface);
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

input.form-control:focus,
textarea.form-control:focus,
select.form-select:focus {
    border-color: var(--border-strong);
    box-shadow: 0 0 0 3px rgba(27, 123, 255, 0.16);
    transform: translateY(-1px);
}

.form-label {
    font-weight: 600;
    color: var(--ink);
}

[data-bs-theme="dark"] input.form-control,
[data-bs-theme="dark"] textarea.form-control,
[data-bs-theme="dark"] select.form-select {
    background: #0f141c;
    border-color: var(--border);
    color: var(--ink);
}

[data-bs-theme="dark"] input.form-control:focus,
[data-bs-theme="dark"] textarea.form-control:focus,
[data-bs-theme="dark"] select.form-select:focus {
    border-color: var(--border-strong);
    box-shadow: 0 0 0 3px rgba(27, 123, 255, 0.28);
}

*:focus-visible {
    outline: 3px solid rgba(0, 163, 255, 0.35);
    outline-offset: 2px;
}

h1,
h2,
h3,
.display-6 {
    font-family: "Lora", Georgia, serif;
    letter-spacing: 0;
}

.page-bg {
    background: var(--bg);
    min-height: 100vh;
    position: relative;
}

.page-bg::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 48px 48px;
    opacity: 0.35;
    pointer-events: none;
    z-index: 0;
}

.site-layer {
    position: relative;
    z-index: 1;
}

/* Navigation */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 1020;
    background: var(--nav-bg);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--nav-shadow);
}

.nav-shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0;
    font-weight: 600;
    color: var(--ink);
    text-decoration: none;
    padding: 0.15rem 0;
    mix-blend-mode: normal;
}

.brand-logo {
    height: 44px;
    width: auto;
    display: block;
    filter: drop-shadow(0 4px 14px rgba(28, 140, 255, 0.22));
    transition: none;
}

[data-bs-theme="dark"] .brand-logo {
    filter: invert(1) brightness(1.2) drop-shadow(0 6px 16px rgba(28, 140, 255, 0.28));
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links .nav-link {
    color: var(--ink);
    font-weight: 500;
    padding: 0.4rem 0.55rem;
    border-radius: 999px;
    position: relative;
    text-decoration: none;
    transition: color 0.15s ease, background 0.15s ease;
}

.nav-links .nav-link:hover,
.nav-links .nav-link:focus-visible {
    color: var(--brand);
    background: var(--chip-bg);
}

.nav-links .nav-link.active {
    color: var(--brand);
}

.nav-links .nav-link::after {
    content: "";
    position: absolute;
    left: 0.55rem;
    right: 0.55rem;
    bottom: -0.28rem;
    height: 2px;
    background: var(--brand);
    border-radius: 999px;
    transform: scaleX(0);
    transform-origin: center;
    opacity: 0.85;
    pointer-events: none;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.nav-links .nav-link:hover::after,
.nav-links .nav-link:focus-visible::after {
    transform: scaleX(0.6);
}

.nav-links .nav-link.active::after {
    transform: scaleX(1);
    opacity: 1;
}

.nav-links .dropdown-toggle::after {
    display: none;
}

.nav-links .dropdown-toggle[aria-expanded="true"] .nav-user-caret {
    transform: translateY(1px) rotate(180deg);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-theme-btn {
    gap: 0.45rem;
    padding: 0 0.85rem;
}

.nav-theme-label {
    font-weight: 600;
}

.site-nav .navbar-toggler {
    border-radius: 999px;
    border: 1px solid var(--border);
    padding: 0.35rem 0.6rem;
}

.site-nav .navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(0, 163, 255, 0.22);
}

.site-nav .navbar-toggler-icon {
    width: 1.25rem;
    height: 1.25rem;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(13,22,36,0.72)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-bs-theme="dark"] .site-nav .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(237,242,247,0.86)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.site-nav .btn.btn-sm {
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.site-nav .btn-brand.btn-sm {
    padding: 0 0.95rem;
}

.site-nav .btn-ghost.btn-sm {
    padding: 0 0.85rem;
}

.site-nav .icon-btn {
    width: 34px;
    padding: 0;
}

.btn-brand {
    background: var(--brand);
    color: #fff;
    border-radius: 999px;
    padding: 0.6rem 1.2rem;
    border: 1px solid transparent;
    transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.2s ease;
}

.btn-brand:hover {
    background: var(--brand-strong);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(28, 140, 255, 0.24);
}

.btn-ghost {
    border-radius: 999px;
    border: 1px solid var(--border);
    color: var(--ink);
    padding: 0.55rem 1.1rem;
    background: transparent;
    transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}

.btn-ghost:hover {
    border-color: var(--border-strong);
    color: var(--brand);
    background: var(--chip-bg);
    transform: translateY(-1px);
}

/* Layout sections */
.section {
    padding: 3.5rem 0;
}

.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: var(--h2-size);
    margin: 0;
}

.hero {
    padding: 3.5rem 0 2.5rem;
}

.hero-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    align-items: center;
}

.hero-title {
    font-size: var(--title-size);
    line-height: 1.05;
}

.hero-sub {
    color: var(--ink-soft);
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.hero-btn {
    min-width: 190px;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 46px;
}

.hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--brand);
}

.hero-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.home {
    --shadow: 0 14px 30px rgba(12, 18, 28, 0.09);
}

[data-bs-theme="dark"] .home {
    --shadow: 0 20px 46px rgba(0, 0, 0, 0.55);
}

.home-focus-card {
    box-shadow: 0 12px 22px rgba(12, 20, 30, 0.08);
}

.home-focus-title {
    font-weight: 600;
    margin-bottom: 0.6rem;
    display: inline-flex;
    align-items: center;
}

.home-cta {
    box-shadow: 0 14px 28px rgba(12, 20, 30, 0.1);
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--chip-bg);
    font-size: 0.9rem;
    white-space: nowrap;
}

.chip-link {
    text-decoration: none;
    color: var(--ink);
}

.chip-link:hover {
    color: var(--brand);
    border-color: var(--border-strong);
    box-shadow: 0 8px 18px rgba(28, 140, 255, 0.16);
}

.chip.active,
.chip-link.active {
    background: var(--badge-bg);
    border-color: var(--border-strong);
    color: var(--brand);
}

.chip-count {
    font-size: 0.75rem;
    color: var(--ink-soft);
}

.panel {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: clamp(1.25rem, 1.5vw + 1rem, 2rem);
}

.panel-ghost {
    background: var(--surface-2);
    border-radius: var(--radius);
    border: 1px solid var(--border-strong);
    padding: clamp(1.05rem, 1.2vw + 0.9rem, 1.6rem);
}

.card {
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: 0 12px 26px rgba(12, 20, 30, 0.08);
}

.post-thumb {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
    border-top-left-radius: var(--radius);
    border-top-right-radius: var(--radius);
    background: var(--surface-2);
}

.post-thumb-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.post-thumb img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    transition: transform 0.25s ease;
}

.post-card:hover .post-thumb img {
    transform: scale(1.02);
}

.post-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.25;
    min-height: calc(1.25em * 2);
}

.post-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.55;
    min-height: calc(1.55em * 3);
}

.post-tags .badge {
    white-space: nowrap;
}

.post-tags--empty {
    min-height: 28px;
}

.post-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.post-meta__sep {
    opacity: 0.6;
}

.pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.pager__meta {
    color: var(--ink-soft);
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: 999px;
    padding: 0.45rem 0.9rem;
    font-size: 0.9rem;
}

.btn.disabled,
.btn:disabled {
    opacity: 0.55;
    pointer-events: none;
}

.nav-user-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0 0.35rem;
    border-radius: 999px;
    background: transparent !important;
    border-color: transparent !important;
    box-shadow: none !important;
}

.nav-user-btn.dropdown-toggle::after {
    display: none;
}

.nav-user-btn:hover,
.nav-user-btn:focus-visible {
    background: transparent !important;
    border-color: transparent !important;
}

.nav-user-caret {
    display: inline-block;
    font-size: 0.9rem;
    color: var(--ink-soft);
    margin-left: 0.1rem;
    transform: translateY(1px);
    transition: transform 0.15s ease;
}

.nav-user-btn[aria-expanded="true"] .nav-user-caret {
    transform: translateY(1px) rotate(180deg);
}

.nav-user-btn:hover .avatar-circle,
.nav-user-btn:focus-visible .avatar-circle {
    border-color: rgba(0, 163, 255, 0.55);
    box-shadow: 0 0 0 3px rgba(0, 163, 255, 0.12);
}

.avatar-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.avatar-circle {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    color: var(--brand);
    border: 1px solid var(--border-strong);
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.22), rgba(27, 123, 255, 0.04));
}

[data-bs-theme="dark"] .avatar-circle {
    background: rgba(27, 123, 255, 0.14);
}

.avatar-dot {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: #ff4d6d;
    box-shadow: 0 0 0 3px var(--surface);
}

[data-bs-theme="dark"] .avatar-dot {
    box-shadow: 0 0 0 3px var(--surface);
}

.count-badge {
    min-width: 22px;
    height: 20px;
    padding: 0 0.4rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 700;
    color: #fff;
    background: #ff4d6d;
}

.chip-badge {
    margin-left: 0.35rem;
    min-width: 18px;
    height: 18px;
    padding: 0 0.35rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 700;
    color: #fff;
    background: #ff4d6d;
}

.nav-user-menu {
    min-width: 240px;
}

.nav-user-header {
    padding: 0.75rem 1rem 0.4rem;
}

.nav-user-header__name {
    font-weight: 600;
    color: var(--ink);
}

.nav-user-header__role {
    font-size: 0.85rem;
    color: var(--ink-soft);
}

.nav-user-menu .dropdown-item i {
    width: 1.1rem;
}

.owner-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.search-form {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.search-form .form-control {
    min-width: 200px;
    flex: 1;
}

.post-list-hero__top {
    display: grid;
    gap: 1rem;
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
}

.search-form--hero .form-control {
    min-width: 240px;
}

.chip-row {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.featured-image {
    position: relative;
    overflow: hidden;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--surface-2);
}

.featured-image img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    display: block;
}

.hero-portrait {
    border-radius: 20px;
    background: var(--surface);
    box-shadow: var(--shadow);
    padding: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 640px;
    margin-left: auto;
    position: relative;
    overflow: hidden;
}

.hero-portrait img {
    width: 100%;
    max-height: 640px;
    height: auto;
    object-fit: contain;
    display: block;
}

.about-grid {
    align-items: start;
}

.about-media {
    display: grid;
    gap: 1rem;
    width: 100%;
    align-self: start;
    order: -1;
}

.about-media__card {
    border-radius: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 0.75rem;
    overflow: hidden;
}

[data-bs-theme="dark"] .about-media__card {
    background: rgba(15, 20, 28, 0.85);
    border: 1px solid rgba(27, 123, 255, 0.22);
    box-shadow: 0 20px 46px rgba(0, 0, 0, 0.55), 0 0 26px rgba(0, 163, 255, 0.14);
}

.about-media__card img {
    width: 100%;
    height: auto;
    max-height: none;
    object-fit: cover;
    object-position: center;
    border-radius: 14px;
    display: block;
}

.about-media__card--primary img {
    aspect-ratio: 4 / 3;
}


.about-hero {
    display: grid;
    gap: 2rem;
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
}

.about-profile {
    max-width: 640px;
}

.about-hero .about-profile {
    max-width: none;
}

.about-prose {
    font-size: 1.05rem;
    line-height: 1.8;
    max-width: 64ch;
    letter-spacing: 0.01em;
    white-space: pre-line;
    position: relative;
    padding-left: 1rem;
    color: var(--ink-soft);
}

.about-prose::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.4rem;
    bottom: 0.4rem;
    width: 3px;
    border-radius: 999px;
    background: linear-gradient(180deg, var(--brand), rgba(27, 123, 255, 0.35));
    opacity: 0.75;
}

.about-prose a {
    color: var(--brand);
    text-decoration: underline;
}

.about-prose a:hover {
    color: var(--brand-strong);
}

.about-prose strong,
.about-prose b {
    color: var(--ink);
}

[data-bs-theme="dark"] .about-prose {
    color: rgba(237, 242, 247, 0.84);
}

[data-bs-theme="dark"] .about-prose::before {
    background: linear-gradient(180deg, rgba(27, 123, 255, 0.9), rgba(27, 123, 255, 0.4));
}

.about-list {
    margin: 0;
    padding-left: 1.1rem;
    color: var(--ink-soft);
    display: grid;
    gap: 0.6rem;
}

[data-bs-theme="dark"] .hero-portrait {
    background: #0f141c;
    box-shadow: 0 18px 36px rgba(0, 0, 0, 0.6), 0 0 24px rgba(0, 163, 255, 0.2);
}

@media (min-width: 992px) {
    .hero-grid {
        grid-template-columns: minmax(320px, 1.1fr) minmax(360px, 1.3fr);
    }

    .post-layout {
        grid-template-columns: minmax(0, 1fr) 280px;
    }

    .post-aside {
        display: block;
    }

    .toc-summary-hint {
        display: none;
    }

    .about-hero {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
        gap: 2.5rem;
    }

    .about-media {
        padding-top: clamp(2.5rem, 3.5vw, 5rem);
        position: sticky;
        top: calc(var(--nav-h, 72px) + 2.25rem);
        order: 0;
    }
}

.card-hover {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 30px rgba(10, 20, 22, 0.14);
}

.post-layout {
    display: grid;
    gap: 2rem;
    grid-template-columns: minmax(0, 1fr);
}

.reading-progress {
    position: fixed;
    left: 0;
    right: 0;
    top: var(--nav-h, 72px);
    z-index: 1019;
    height: 6px;
    margin: 0;
    background: rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    border-radius: 0;
    overflow: hidden;
}

[data-bs-theme="dark"] .reading-progress {
    background: rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.reading-progress__bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, rgba(0, 163, 255, 0.35), rgba(0, 163, 255, 1));
    border-radius: 0;
    transition: width 0.08s linear;
}

.post-main {
    min-width: 0;
}

.post-aside {
    display: block;
}

.post-main .panel {
    padding: 1.75rem;
}

.post-aside .panel {
    padding: 1.4rem;
}

.sticky-panel {
    position: sticky;
    top: 100px;
}

.toc-panel {
    padding: 0;
}

.toc-details {
    padding: 1.4rem;
}

.toc-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    cursor: pointer;
    list-style: none;
}

.toc-summary::-webkit-details-marker {
    display: none;
}

.toc-summary::after {
    content: "▾";
    color: var(--ink-soft);
    transition: transform 0.15s ease;
}

.toc-details[open] .toc-summary::after {
    transform: rotate(180deg);
}

.toc-body {
    margin-top: 0.9rem;
    border-top: 1px solid var(--border);
    padding-top: 0.9rem;
    max-height: calc(100vh - 260px);
    overflow: auto;
    padding-right: 0.25rem;
}

.toc-details:not([open]) .toc-body {
    display: none;
}

.toc-summary-hint {
    opacity: 0.85;
}

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

.toc-list li {
    margin-bottom: 0.15rem;
}

.toc-list a {
    text-decoration: none;
    color: var(--ink);
    display: block;
    padding: 0.35rem 0.5rem;
    border-radius: 12px;
    border: 1px solid transparent;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.toc-list a:hover {
    color: var(--brand);
    background: var(--chip-bg);
    border-color: var(--border-strong);
}

.toc-list a.active {
    color: var(--brand);
    font-weight: 600;
    background: rgba(0, 163, 255, 0.12);
    border-color: rgba(0, 163, 255, 0.35);
}

.toc-sub {
    padding-left: 0.75rem;
    font-size: 0.92rem;
}

.toc-sub a {
    color: var(--ink-soft);
}

.toc-sub a.active {
    color: var(--brand);
}

.post-head .display-6 {
    line-height: 1.15;
}

.post-topics__label {
    font-size: 0.75rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin-bottom: 0.5rem;
}

.icon-btn {
    width: 38px;
    height: 34px;
    padding: 0;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
}

.icon-btn i {
    font-size: 1.05rem;
}

.icon-btn.is-success {
    border-color: rgba(0, 163, 255, 0.55);
    box-shadow: 0 0 0 3px rgba(0, 163, 255, 0.15);
}

.icon-btn.is-failed {
    border-color: rgba(220, 53, 69, 0.55);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.14);
}

.owner-editor-textarea {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.95rem;
    line-height: 1.6;
    min-height: 420px;
}

.owner-editor-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.owner-editor-tabs .btn.is-active {
    border-color: var(--border-strong);
    color: var(--brand);
    background: var(--chip-bg);
}

.post-hero-image img {
    width: 100%;
    max-height: 520px;
    object-fit: cover;
}

.post-bottom {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

.related-grid {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: 1fr;
}

.post-nav {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.post-nav-card {
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1rem 1.1rem;
    background: var(--surface);
    box-shadow: 0 12px 22px rgba(12, 20, 30, 0.06);
    color: var(--ink);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.post-nav-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-strong);
    box-shadow: 0 16px 28px rgba(12, 20, 30, 0.12);
    color: var(--ink);
}

.post-nav-label {
    font-size: 0.75rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin-bottom: 0.35rem;
}

.comment-list {
    display: grid;
    gap: 1rem;
}

.comment-item {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.8rem 1rem;
    background: var(--surface-2);
}

.comment-form .form-control {
    background: var(--surface);
}

.author-box {
    display: flex;
    align-items: center;
}

.author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--border-strong);
}

.author-card {
    text-align: left;
}

.author-compact {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
}

.author-card--compact .author-avatar {
    width: 64px;
    height: 64px;
    flex: 0 0 auto;
}

.author-card--compact p {
    margin-bottom: 0.6rem;
}

.author-card--compact .author-card-title {
    margin-bottom: 0.6rem;
}

.author-card-title {
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.75rem;
    margin-bottom: 0.75rem;
}

.author-photo {
    width: 100%;
    height: auto;
    border-radius: 14px;
    border: 1px solid var(--border);
    margin-bottom: 0.75rem;
    display: block;
}

.related-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.7rem 0.8rem;
    background: var(--surface-2);
    transition: border-color 0.2s ease, transform 0.2s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.related-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-2px);
}

.related-grid a {
    display: block;
    height: 100%;
}

.related-title {
    font-weight: 600;
    color: var(--ink);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-excerpt {
    color: var(--ink-soft);
    font-size: 0.92rem;
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.dropdown-menu {
    border-radius: 14px;
    border: 1px solid var(--border-strong);
    box-shadow: 0 12px 24px rgba(10, 20, 30, 0.1);
    background: var(--surface);
}

.dropdown-item.active,
.dropdown-item:active {
    background: var(--chip-bg);
    color: var(--ink);
}

.stat-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stat-card {
    background: var(--surface);
    border-radius: 16px;
    border: 1px solid var(--border-strong);
    padding: 1rem 1.2rem;
}

.stat-link {
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.stat-link:hover {
    transform: translateY(-2px);
    border-color: var(--border-strong);
    box-shadow: 0 12px 20px rgba(12, 20, 30, 0.12);
}

.stat-label {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--brand);
}

.stat-value {
    font-size: 1.4rem;
    font-weight: 600;
}

.badge-soft {
    border-radius: 999px;
    border: 1px solid var(--border-strong);
    background: var(--badge-bg);
    color: inherit;
}

.tile-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.category-grid .tile-card {
    display: grid;
    grid-template-columns: 56px 1fr;
    align-items: center;
    justify-content: start;
    gap: 1rem;
    border-style: solid;
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.04), rgba(255, 255, 255, 0));
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.home-category-card {
    align-items: center;
    gap: 1rem;
    padding: 1.15rem 1.3rem;
}

.tile-card .text-muted.small {
    line-height: 1.4;
    min-height: 2.8em;
}

.category-grid .icon-pill {
    width: 44px;
    height: 44px;
    justify-self: center;
    align-self: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.category-grid .tile-card .tile-content,
.category-grid .tile-card > div:not(.icon-pill) {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.35rem;
    min-width: 0;
}

.category-grid .tile-card:hover .icon-pill {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(27, 123, 255, 0.2);
}

.category-grid .tile-card:hover {
    border-color: rgba(0, 163, 255, 0.45);
    box-shadow: 0 16px 28px rgba(12, 20, 30, 0.12);
    background: linear-gradient(135deg, rgba(0, 163, 255, 0.08), rgba(255, 255, 255, 0));
}

.home-category-card .icon-pill {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    font-size: 1.2rem;
}


@media (min-width: 992px) {
    .category-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (min-width: 992px) {
    .home-category-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.tile-card {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
    padding: 1.2rem 1.3rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: 0 12px 22px rgba(12, 20, 30, 0.06);
    text-decoration: none;
    color: var(--ink);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.tile-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-strong);
    box-shadow: 0 16px 28px rgba(12, 20, 30, 0.12);
    color: var(--ink);
}

.icon-pill {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--chip-bg);
    border: 1px solid var(--border-strong);
    color: var(--brand);
    font-size: 1.1rem;
}

.footer {
    border-top: 1px solid var(--border-strong);
    padding: 2.9rem 0;
    background: linear-gradient(135deg, #f5f7fb 0%, #e9f1ff 55%, #f5f7fb 100%);
    color: var(--ink-soft);
}

.footer-layout {
    position: relative;
}

.footer-heading {
    font-weight: 700;
    letter-spacing: 0.01em;
    margin-bottom: 0.75rem;
    color: var(--ink);
}

.footer-brand__name {
    font-weight: 700;
    font-size: 1.08rem;
    margin-bottom: 0.35rem;
    color: var(--ink);
}

.footer-tagline {
    color: var(--ink-soft);
    margin-bottom: 0;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.5rem;
}

.footer-links li {
    line-height: 1.5;
}

.footer a {
    color: var(--ink-soft);
    text-decoration: none;
    transition: color 0.15s ease;
}

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

.footer-backtop {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    text-decoration: none;
    font-weight: 600;
    color: var(--ink);
}

.footer-backtop:hover {
    color: var(--brand);
}

.footer-meta {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-top: 1.8rem;
    padding-top: 1.2rem;
    border-top: 1px solid var(--border);
    color: var(--ink-soft);
    font-size: 0.95rem;
}

@media (min-width: 768px) {
    .footer-meta {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

[data-bs-theme="dark"] .footer {
    background: linear-gradient(135deg, #05070e 0%, #0a1325 55%, #05070e 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(233, 238, 245, 0.9);
}

.visually-hidden-focusable:focus {
    position: absolute;
    top: 1rem;
    left: 1rem;
    z-index: 1050;
    padding: 0.5rem 0.8rem;
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: 8px;
}

[data-bs-theme="dark"] .dropdown-item {
    color: var(--ink);
}

[data-bs-theme="dark"] .dropdown-item:hover,
[data-bs-theme="dark"] .dropdown-item:focus {
    background: rgba(0, 163, 255, 0.12);
    color: var(--ink);
}

/* Typography helpers */
.prose {
    font-size: 0.98rem;
}

.prose p {
    margin-bottom: 1rem;
    line-height: 1.75;
}

.prose ol {
    margin: 1rem 0 1.2rem;
    padding-left: 1.25rem;
    color: var(--ink-soft);
    display: grid;
    gap: 0.5rem;
}

.prose ul {
    margin: 1rem 0 1.2rem;
    padding-left: 1.25rem;
    color: var(--ink-soft);
    display: grid;
    gap: 0.5rem;
}

.prose li {
    line-height: 1.65;
}

.prose h2,
.prose h3 {
    margin-top: 1.75rem;
    margin-bottom: 0.75rem;
    scroll-margin-top: 110px;
}

.prose h2 {
    font-size: 1.35rem;
}

.prose h3 {
    font-size: 1.12rem;
}

.prose .post-figure {
    margin: 1.25rem 0;
}

.prose .post-figure img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: 0 14px 26px rgba(12, 20, 30, 0.08);
}

.prose .post-figure figcaption {
    margin-top: 0.6rem;
    font-size: 0.9rem;
    color: var(--ink-soft);
}

.prose .code-block {
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    margin: 1.25rem 0;
    background: #f6f9fc;
}

[data-bs-theme="dark"] .prose .code-block {
    background: #0f1624;
    border-color: var(--border-strong);
}

.prose .code-block__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.7rem 0.85rem;
    border-bottom: 1px solid var(--border);
    background: rgba(0, 163, 255, 0.08);
}

[data-bs-theme="dark"] .prose .code-block__head {
    background: rgba(0, 163, 255, 0.18);
}

.prose .code-block__lang {
    font-size: 0.8rem;
    color: var(--ink-soft);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.prose .code-block__pre {
    margin: 0;
    padding: 1rem;
    overflow: auto;
    background: transparent;
}

.prose .code-block__code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.92rem;
    line-height: 1.6;
    color: var(--ink);
    white-space: pre;
    display: block;
}

.prose .code-block__code .token.comment,
.prose .code-block__code .token.prolog,
.prose .code-block__code .token.doctype,
.prose .code-block__code .token.cdata {
    color: #6b7280;
}

.prose .code-block__code .token.punctuation {
    color: #94a3b8;
}

.prose .code-block__code .token.property,
.prose .code-block__code .token.tag,
.prose .code-block__code .token.boolean,
.prose .code-block__code .token.number,
.prose .code-block__code .token.constant,
.prose .code-block__code .token.symbol,
.prose .code-block__code .token.deleted {
    color: #1b7bff;
}

.prose .code-block__code .token.selector,
.prose .code-block__code .token.attr-name,
.prose .code-block__code .token.string,
.prose .code-block__code .token.char,
.prose .code-block__code .token.builtin,
.prose .code-block__code .token.inserted {
    color: #10b981;
}

.prose .code-block__code .token.operator,
.prose .code-block__code .token.entity,
.prose .code-block__code .token.url,
.prose .code-block__code .language-css .token.string,
.prose .code-block__code .style .token.string {
    color: #fb923c;
}

.prose .code-block__code .token.atrule,
.prose .code-block__code .token.attr-value,
.prose .code-block__code .token.keyword {
    color: #a855f7;
}

.prose .code-block__code .token.function,
.prose .code-block__code .token.class-name {
    color: #0ea5e9;
}

.prose .code-block__code .token.regex,
.prose .code-block__code .token.important,
.prose .code-block__code .token.variable {
    color: #ef4444;
}

.prose .code-block__code .token.important,
.prose .code-block__code .token.bold {
    font-weight: 700;
}

.prose .code-block__code .token.italic {
    font-style: italic;
}

.prose :not(pre) > code {
    padding: 0.15rem 0.35rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: rgba(28, 140, 255, 0.1);
    color: var(--ink);
}

@media (max-width: 991px) {
    .nav-shell {
        align-items: center;
    }

    .nav-links {
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem 0;
    }

    .nav-links .nav-link {
        width: 100%;
        padding: 0.55rem 0.75rem;
    }

    .nav-links .nav-link::after {
        display: none;
    }

    .nav-links .nav-link.active {
        background: var(--chip-bg);
    }

    .nav-actions {
        padding-bottom: 1rem;
    }

    .post-main .panel {
        padding: 1.5rem;
    }

    .reading-progress {
        top: var(--nav-h, 64px);
    }
}

@media (max-width: 575px) {
    .section-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .section {
        padding: 2.5rem 0;
    }

    .hero {
        padding: 2.75rem 0 2rem;
    }

    .hero-btn {
        min-width: 0;
        width: auto;
        flex: 1 1 auto;
    }

    .hero-portrait img {
        max-height: 420px;
    }
}

@media (min-width: 992px) {
    .post-layout {
        grid-template-columns: minmax(0, 1fr) 320px;
    }

    .post-aside {
        display: block;
    }

    .related-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}