/* ==========================================================================
   Bilio Theme — Main Stylesheet
   Design reference: demo.html (dark glass SaaS aesthetic)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens / CSS Variables
   -------------------------------------------------------------------------- */
:root {
    --bilio-primary: #3b82f6;
    --bilio-secondary: #8b5cf6;
    --bilio-accent: #06b6d4;
    --bilio-bg: #070b14;
    --bilio-surface: #0f172a;

    --c-text: #f1f5f9;
    --c-text-muted: #94a3b8;
    --c-text-dim: #64748b;
    --c-text-faint: #475569;
    --c-border: rgba(255, 255, 255, .08);
    --c-border-strong: rgba(255, 255, 255, .14);

    --glass-bg: rgba(15, 23, 42, .68);
    --glass-blur: blur(18px);

    --radius-sm: .5rem;
    --radius-md: .75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 1.75rem;
    --radius-full: 9999px;

    --shadow-glow: 0 0 0 1px rgba(96, 165, 250, .08), 0 25px 90px rgba(37, 99, 235, .14);
    --shadow-card: 0 10px 40px rgba(0, 0, 0, .35);

    --container: 80rem;      /* 1280px */
    --container-narrow: 56rem; /* 896px */
    --container-blog: 46rem;   /* 736px */

    --section-pad: clamp(3.5rem, 8vw, 6rem);
    --gutter: clamp(1.25rem, 4vw, 2rem);

    --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    --header-h: 4.5rem;
    --ease: cubic-bezier(.4, 0, .2, 1);
    --transition: .25s var(--ease);
}

/* --------------------------------------------------------------------------
   2. Reset & Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--c-text);
    background-color: var(--bilio-bg);
    background-image: radial-gradient(circle at 50% -10%, rgba(59, 130, 246, .16), transparent 32rem);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img,
svg,
video {
    display: block;
    max-width: 100%;
    height: auto;
}

img {
    border-style: none;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--bilio-primary);
}

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    background: none;
    border: 0;
    padding: 0;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 .75em;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -.02em;
    color: var(--c-text);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); }

p {
    margin: 0 0 1em;
}

p:last-child {
    margin-bottom: 0;
}

ul, ol {
    margin: 0 0 1em;
    padding-left: 1.25em;
}

::selection {
    background: rgba(59, 130, 246, .35);
    color: #fff;
}

/* Focus states — accessibility */
:focus-visible {
    outline: 2px solid var(--bilio-primary);
    outline-offset: 3px;
    border-radius: 4px;
}

/* Skip link */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 999;
    padding: .75rem 1.25rem;
    background: var(--bilio-primary);
    color: #fff;
    border-radius: 0 0 var(--radius-md) 0;
    font-weight: 600;
}

.skip-link:focus {
    left: 0;
    color: #fff;
}

.screen-reader-text {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Background grid */
.site-grid-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
    background-size: 42px 42px;
    -webkit-mask-image: linear-gradient(to bottom, black, transparent 88%);
    mask-image: linear-gradient(to bottom, black, transparent 88%);
}

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

/* --------------------------------------------------------------------------
   3. Layout Utilities
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.container--narrow {
    max-width: var(--container-narrow);
}

.section-pad {
    padding-block: var(--section-pad);
}

.section {
    padding-block: var(--section-pad);
}

.glass {
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--c-border);
}

.glass--pulse {
    animation: pulseSoft 3s ease-in-out infinite;
}

.gradient-text {
    background: linear-gradient(90deg, #60a5fa, #a78bfa, #22d3ee);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-glow {
    box-shadow: var(--shadow-glow);
}

.dot {
    width: .375rem;
    height: .375rem;
    border-radius: var(--radius-full);
    display: inline-block;
    flex-shrink: 0;
}

.dot--success { background: #34d399; }

.shine {
    position: relative;
    overflow: hidden;
}

.shine::after {
    content: "";
    position: absolute;
    top: 0;
    left: -130%;
    width: 55%;
    height: 100%;
    transform: skewX(-18deg);
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .16), transparent);
    transition: left .75s ease;
    pointer-events: none;
}

.shine:hover::after {
    left: 145%;
}

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .75rem 1.5rem;
    font-size: .9375rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    text-align: center;
    min-height: 44px;
    white-space: nowrap;
}

.btn:active {
    transform: translateY(1px);
}

.btn--primary {
    background: var(--bilio-primary);
    color: #fff;
    box-shadow: 0 10px 30px rgba(59, 130, 246, .25);
}

.btn--primary:hover {
    background: #60a5fa;
    color: #fff;
}

.btn--light {
    background: #fff;
    color: #0b1120;
}

.btn--light:hover {
    background: #e2e8f0;
    color: #0b1120;
}

.btn--ghost {
    background: transparent;
    border-color: var(--c-border-strong);
    color: var(--c-text);
}

.btn--ghost:hover {
    border-color: var(--bilio-primary);
    color: var(--bilio-primary);
}

.btn--sm {
    padding: .5rem 1rem;
    font-size: .875rem;
    min-height: 36px;
}

.btn--lg {
    height: 3.5rem;
    padding-inline: 1.75rem;
    font-size: 1rem;
    border-radius: var(--radius-xl);
}

.btn--block {
    width: 100%;
}

.btn:disabled,
.btn[aria-disabled="true"] {
    opacity: .7;
    cursor: wait;
    pointer-events: none;
}

/* Spinner */
.spinner {
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255, 255, 255, .25);
    border-top-color: #fff;
    border-radius: var(--radius-full);
    animation: spin .8s linear infinite;
    display: inline-block;
    flex-shrink: 0;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulseSoft {
    0%, 100% { opacity: .55; }
    50% { opacity: 1; }
}

/* --------------------------------------------------------------------------
   5. Header / Navigation
   -------------------------------------------------------------------------- */
.site-header {
    position: relative;
    z-index: 50;
}

.site-header.is-sticky {
    position: sticky;
    top: 0;
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    background: rgba(7, 11, 20, .75);
    border-bottom: 1px solid var(--c-border);
}

.site-header.is-transparent.is-sticky {
    background: rgba(7, 11, 20, .55);
}

.site-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: var(--header-h);
    padding-block: .75rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: .75rem;
    color: var(--c-text);
}

.brand:hover { color: var(--c-text); }

.brand__mark {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-lg);
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--bilio-primary), var(--bilio-accent));
    box-shadow: 0 8px 24px rgba(59, 130, 246, .28);
    transition: transform var(--transition);
    flex-shrink: 0;
}

.brand:hover .brand__mark { transform: scale(1.05); }

.brand__mark .icon {
    width: 1.25rem;
    height: 1.25rem;
    fill: #fff;
}

.brand__mark--sm {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: var(--radius-md);
}

.brand__mark--sm .icon { width: .875rem; height: .875rem; }

.brand__text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.brand__name {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -.02em;
}

.brand__tagline {
    font-size: .625rem;
    text-transform: uppercase;
    letter-spacing: .22em;
    color: var(--c-text-dim);
}

.custom-logo-link img {
    max-height: 40px;
    width: auto;
}

.site-nav__menu {
    display: none;
}

.menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.menu__link {
    position: relative;
    font-size: .875rem;
    color: var(--c-text-muted);
    padding-block: .375rem;
    transition: color var(--transition);
}

.menu__link:hover,
.menu__item.current-menu-item > .menu__link,
.menu__item.current_page_item > .menu__link {
    color: var(--c-text);
}

.menu__link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: var(--bilio-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition);
}

.menu__link:hover::after {
    width: 100%;
}

/* Dropdown (3rd level support) */
.menu__item {
    position: relative;
}

.menu--primary .menu__item .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 12rem;
    flex-direction: column;
    gap: 0;
    padding: .5rem;
    background: var(--bilio-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    z-index: 60;
}

.menu--primary .menu__item:hover > .sub-menu,
.menu--primary .menu__item:focus-within > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.menu--primary .sub-menu .menu__link {
    display: block;
    padding: .5rem .75rem;
    border-radius: var(--radius-md);
}

.menu--primary .sub-menu .menu__link:hover {
    background: rgba(255, 255, 255, .05);
}

.menu--primary .sub-menu .menu__item .sub-menu {
    top: 0;
    left: 100%;
}

.site-nav__actions {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.nav-search-toggle,
.nav-toggle {
    width: 2.5rem;
    height: 2.5rem;
    display: grid;
    place-items: center;
    border-radius: var(--radius-lg);
    background: var(--glass-bg);
    border: 1px solid var(--c-border);
    color: var(--c-text-muted);
    transition: color var(--transition), background var(--transition);
}

.nav-search-toggle:hover,
.nav-toggle:hover {
    color: var(--c-text);
    background: rgba(255, 255, 255, .07);
}

.nav-search-toggle .icon,
.nav-toggle .icon {
    width: 1.25rem;
    height: 1.25rem;
}

.nav-toggle__icon--close { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon--open { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon--close { display: block; }

.nav-cta { display: none; }

/* Search bar */
.nav-search {
    border-top: 1px solid var(--c-border);
    background: rgba(7, 11, 20, .9);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    padding-block: .875rem;
}

.nav-search[hidden] { display: none; }

/* Mobile menu */
.mobile-menu {
    position: fixed;
    inset: var(--header-h) 0 0;
    z-index: 49;
    background: rgba(4, 7, 14, .85);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    padding: 1rem var(--gutter) 2rem;
    overflow-y: auto;
}

.mobile-menu[hidden] { display: none; }

.mobile-menu__panel {
    background: var(--bilio-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    padding: 1rem;
}

.menu--mobile {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
}

.menu--mobile .menu__item {
    border-bottom: 1px solid var(--c-border);
}

.menu--mobile .menu__item:last-child { border-bottom: 0; }

.menu--mobile .menu__link {
    display: block;
    padding: .875rem .5rem;
    font-size: .9375rem;
}

.menu--mobile .sub-menu {
    padding-left: 1rem;
    flex-direction: column;
    gap: 0;
}

.menu--mobile .sub-menu .menu__link {
    padding: .625rem .5rem;
    font-size: .875rem;
    color: var(--c-text-muted);
}

.mobile-menu__search {
    padding-top: 1rem;
    margin-top: .5rem;
    border-top: 1px solid var(--c-border);
}

/* --------------------------------------------------------------------------
   6. Search form
   -------------------------------------------------------------------------- */
.search-form {
    display: flex;
    gap: .5rem;
    width: 100%;
}

.search-form__field {
    position: relative;
    flex: 1;
    min-width: 0;
}

.search-form .search-field {
    width: 100%;
    height: 2.75rem;
    padding: 0 1rem 0 2.75rem;
    background: rgba(2, 6, 16, .7);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    color: var(--c-text);
    font-size: .9375rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.search-form .search-field::placeholder {
    color: var(--c-text-faint);
}

.search-form .search-field:focus {
    outline: none;
    border-color: rgba(59, 130, 246, .5);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, .1);
}

.search-form__icon {
    position: absolute;
    left: .875rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1.125rem;
    height: 1.125rem;
    color: var(--c-text-dim);
    pointer-events: none;
}

.search-form .search-submit {
    height: 2.75rem;
    padding-inline: 1.25rem;
    background: var(--bilio-primary);
    color: #fff;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: .875rem;
    transition: background var(--transition);
    flex-shrink: 0;
}

.search-form .search-submit:hover {
    background: #60a5fa;
}

.search-form-wrap {
    padding: 1.25rem;
    border-radius: var(--radius-xl);
    margin-block: 1.5rem;
}

/* --------------------------------------------------------------------------
   7. Hero + Downloader
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    z-index: 1;
    padding-block: clamp(3rem, 10vw, 6rem) clamp(3.5rem, 9vw, 5.5rem);
    text-align: center;
}

.hero__inner {
    max-width: 72rem;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem .875rem;
    border-radius: var(--radius-full);
    font-size: .75rem;
    color: var(--c-text-muted);
    margin-bottom: 1.75rem;
}

.hero__title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 900;
    letter-spacing: -.04em;
    line-height: .98;
    max-width: 56rem;
    margin-inline: auto;
    margin-bottom: 1.25rem;
}

.hero__desc {
    color: var(--c-text-muted);
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.65;
    max-width: 42rem;
    margin-inline: auto;
    margin-bottom: 2.5rem;
}

/* Downloader component */
.downloader {
    max-width: 56rem;
    margin-inline: auto;
    padding: .875rem;
    border-radius: var(--radius-2xl);
    text-align: left;
}

.downloader__form {
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.downloader__field {
    position: relative;
    flex: 1;
    min-width: 0;
}

.downloader__field-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1.25rem;
    height: 1.25rem;
    color: var(--c-text-dim);
    pointer-events: none;
}

.downloader__input {
    width: 100%;
    height: 3.5rem;
    padding: 0 7rem 0 3rem;
    background: rgba(2, 6, 16, .7);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    color: var(--c-text);
    font-size: .9375rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.downloader__input::placeholder {
    color: var(--c-text-faint);
}

.downloader__input:focus {
    outline: none;
    border-color: rgba(59, 130, 246, .5);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, .1);
}

.downloader__clear {
    position: absolute;
    right: 3.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 2rem;
    height: 2rem;
    display: grid;
    place-items: center;
    border-radius: var(--radius-md);
    color: var(--c-text-dim);
    font-size: 1.25rem;
    line-height: 1;
    transition: background var(--transition), color var(--transition);
}

.downloader__clear[hidden] { display: none; }

.downloader__clear:hover {
    background: rgba(255, 255, 255, .06);
    color: var(--c-text);
}

.downloader__paste {
    position: absolute;
    right: .5rem;
    top: 50%;
    transform: translateY(-50%);
    height: 2.25rem;
    padding-inline: .75rem;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--c-border);
    color: var(--c-text-muted);
    font-size: .75rem;
    font-weight: 600;
    transition: background var(--transition), color var(--transition);
}

.downloader__paste:hover {
    background: rgba(255, 255, 255, .1);
    color: var(--c-text);
}

.downloader__submit {
    width: 100%;
    height: 3.5rem;
    border-radius: var(--radius-xl);
}

.downloader__submit-icon .icon {
    width: 1.25rem;
    height: 1.25rem;
}

.downloader__error {
    margin-top: .75rem;
    padding: .625rem .875rem;
    background: rgba(239, 68, 68, .1);
    border: 1px solid rgba(239, 68, 68, .3);
    border-radius: var(--radius-md);
    color: #fca5a5;
    font-size: .8125rem;
}

.downloader__error[hidden] { display: none; }

.downloader__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    padding: 1rem .5rem 0;
    font-size: .75rem;
    color: var(--c-text-dim);
}

.downloader__hint {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
}

/* Result */
.downloader-result {
    max-width: 56rem;
    margin: 1.5rem auto 0;
    text-align: left;
}

.downloader-result[hidden] { display: none; }

.downloader-result__card {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding: 1.25rem;
    border-radius: var(--radius-2xl);
}

.downloader-result__thumb {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: #0b1220;
    border: 1px solid var(--c-border);
}

.downloader-result__thumb-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, .3), rgba(99, 102, 241, .2), rgba(34, 211, 238, .2));
}

.downloader-result__thumb-play {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
}

.downloader-result__thumb-play .icon {
    width: 3rem;
    height: 3rem;
    fill: #fff;
    background: rgba(255, 255, 255, .12);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    padding: .875rem;
    border-radius: var(--radius-xl);
}

.downloader-result__badge {
    position: absolute;
    left: .75rem;
    bottom: .75rem;
    padding: .25rem .5rem;
    background: rgba(0, 0, 0, .6);
    border-radius: var(--radius-md);
    font-size: .6875rem;
    color: #fff;
}

.downloader-result__thumb img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.downloader-result__thumb img[hidden] { display: none; }

.downloader-result__status {
    font-size: .75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--bilio-primary);
    margin-bottom: .5rem;
}

.downloader-result__title {
    font-size: 1.25rem;
    margin-bottom: .5rem;
}

.downloader-result__url {
    font-size: .8125rem;
    color: var(--c-text-dim);
    word-break: break-all;
    margin-bottom: .25rem;
}

.downloader-result__duration {
    font-size: .8125rem;
    color: var(--c-text-muted);
}

.downloader-result__duration[hidden] { display: none; }

.downloader-result__options {
    display: grid;
    grid-template-columns: 1fr;
    gap: .75rem;
    margin-block: 1.25rem;
}

.downloader-result__label {
    display: flex;
    flex-direction: column;
    gap: .5rem;
    font-size: .75rem;
    color: var(--c-text-dim);
}

.select {
    height: 2.75rem;
    padding: 0 .75rem;
    background: rgba(2, 6, 16, .8);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    color: var(--c-text);
    font-size: .875rem;
    transition: border-color var(--transition);
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right .75rem center;
    padding-right: 2rem;
}

.select:focus {
    outline: none;
    border-color: rgba(59, 130, 246, .5);
}

.select option {
    background: var(--bilio-surface);
    color: var(--c-text);
}

.downloader-result__note {
    margin-top: .75rem;
    font-size: .6875rem;
    color: var(--c-text-faint);
    text-align: center;
}

/* Hero stats */
.hero__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: .75rem;
    max-width: 48rem;
    margin: 3rem auto 0;
}

.hero__stat {
    padding: 1rem;
    border-radius: var(--radius-xl);
    text-align: left;
}

.hero__stat-value {
    font-size: 1.25rem;
    font-weight: 700;
}

.hero__stat-label {
    font-size: .75rem;
    color: var(--c-text-dim);
    margin-top: .25rem;
}

/* --------------------------------------------------------------------------
   8. Sections / Cards
   -------------------------------------------------------------------------- */
.section-header {
    max-width: 42rem;
    margin-bottom: 2.5rem;
}

.section-header--center {
    text-align: center;
    margin-inline: auto;
}

.section-eyebrow {
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .2em;
    color: var(--bilio-primary);
    font-weight: 600;
    margin-bottom: .75rem;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -.03em;
    margin-bottom: .75rem;
}

.section-title--sm {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

.section-desc {
    color: var(--c-text-muted);
    line-height: 1.65;
    margin-bottom: 0;
}

.section--how {
    border-block: 1px solid var(--c-border);
    background: rgba(255, 255, 255, .015);
}

.card-grid {
    display: grid;
    gap: 1.25rem;
}

.card-grid--3 {
    grid-template-columns: 1fr;
}

/* Feature card */
.feature-card {
    padding: 1.75rem;
    border-radius: var(--radius-2xl);
    transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--c-border-strong);
}

.feature-card__icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-xl);
    display: grid;
    place-items: center;
    border: 1px solid transparent;
}

.feature-card__icon .icon {
    width: 1.5rem;
    height: 1.5rem;
}

.feature-card__icon--blue { background: rgba(59, 130, 246, .1); border-color: rgba(96, 165, 250, .1); color: #60a5fa; }
.feature-card__icon--cyan { background: rgba(6, 182, 212, .1); border-color: rgba(34, 211, 238, .1); color: #22d3ee; }
.feature-card__icon--violet { background: rgba(139, 92, 246, .1); border-color: rgba(167, 139, 250, .1); color: #a78bfa; }
.feature-card__icon--green { background: rgba(52, 211, 153, .1); border-color: rgba(52, 211, 153, .12); color: #34d399; }
.feature-card__icon--amber { background: rgba(251, 191, 36, .1); border-color: rgba(251, 191, 36, .12); color: #fbbf24; }

.feature-card__title {
    margin-top: 1.25rem;
    margin-bottom: .5rem;
    font-size: 1.125rem;
}

.feature-card__text {
    font-size: .875rem;
    color: var(--c-text-dim);
    line-height: 1.6;
    margin: 0;
}

/* Step card */
.step-card {
    position: relative;
    padding: 1.75rem;
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.step-card__watermark {
    position: absolute;
    right: 1.25rem;
    top: .75rem;
    font-size: 3.75rem;
    font-weight: 900;
    color: rgba(255, 255, 255, .05);
    line-height: 1;
    pointer-events: none;
}

.step-card__num {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-lg);
    background: var(--bilio-primary);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 700;
}

.step-card__title {
    margin-top: 1.25rem;
    margin-bottom: .5rem;
    font-size: 1.125rem;
}

.step-card__text {
    font-size: .875rem;
    color: var(--c-text-dim);
    line-height: 1.6;
    margin: 0;
}

/* --------------------------------------------------------------------------
   9. Tool cards / grid
   -------------------------------------------------------------------------- */
.tool-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

.tool-card {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.tool-card:hover {
    transform: translateY(-4px);
    border-color: rgba(96, 165, 250, .35);
}

.tool-card__link {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    color: inherit;
    height: 100%;
}

.tool-card__link:hover { color: inherit; }

.tool-card__icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, rgba(59, 130, 246, .18), rgba(6, 182, 212, .18));
    border: 1px solid var(--c-border);
    display: grid;
    place-items: center;
    flex-shrink: 0;
    overflow: hidden;
    color: #60a5fa;
}

.tool-card__icon .icon {
    width: 1.5rem;
    height: 1.5rem;
    fill: currentColor;
}

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

.tool-card__body {
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.tool-card__cat {
    font-size: .6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--bilio-primary);
    margin-bottom: .375rem;
}

.tool-card__title {
    font-size: 1.0625rem;
    margin-bottom: .375rem;
}

.tool-card__desc {
    font-size: .8125rem;
    color: var(--c-text-dim);
    line-height: 1.55;
    margin-bottom: .75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tool-card__cta {
    margin-top: auto;
    font-size: .8125rem;
    font-weight: 600;
    color: var(--bilio-primary);
    display: inline-flex;
    align-items: center;
    gap: .375rem;
}

/* --------------------------------------------------------------------------
   10. Blog / Post cards
   -------------------------------------------------------------------------- */
.post-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

.post-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.post-card:hover {
    transform: translateY(-4px);
    border-color: var(--c-border-strong);
}

.post-card__media {
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #0b1220;
}

.post-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s var(--ease);
}

.post-card:hover .post-card__media img {
    transform: scale(1.04);
}

.post-card__body {
    display: flex;
    flex-direction: column;
    padding: 1.25rem;
    flex: 1;
}

.post-card__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .625rem;
    font-size: .75rem;
    color: var(--c-text-dim);
    margin-bottom: .75rem;
}

.post-card__cat {
    color: var(--bilio-primary);
    font-weight: 600;
}

.post-card__title {
    font-size: 1.125rem;
    margin-bottom: .5rem;
    line-height: 1.35;
}

.post-card__title a {
    color: var(--c-text);
}

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

.post-card__excerpt {
    font-size: .875rem;
    color: var(--c-text-dim);
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-card__more {
    margin-top: auto;
    font-size: .8125rem;
    font-weight: 600;
    color: var(--bilio-primary);
    display: inline-flex;
    align-items: center;
    gap: .375rem;
}

/* --------------------------------------------------------------------------
   11. Single entry
   -------------------------------------------------------------------------- */
.entry-header {
    margin-bottom: 1.75rem;
}

.entry-title {
    font-size: clamp(1.875rem, 5vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -.03em;
    line-height: 1.15;
    margin-bottom: .875rem;
}

.entry-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .625rem;
    font-size: .8125rem;
    color: var(--c-text-dim);
}

.entry-meta--top { margin-bottom: .875rem; }

.entry-meta__cat {
    padding: .25rem .625rem;
    background: rgba(59, 130, 246, .12);
    border: 1px solid rgba(96, 165, 250, .2);
    border-radius: var(--radius-full);
    color: #93c5fd;
    font-weight: 600;
    font-size: .75rem;
}

.entry-meta__author {
    font-weight: 600;
    color: var(--c-text-muted);
}

.entry-meta__author:hover { color: var(--bilio-primary); }

.entry-thumb {
    margin: 0 0 1.75rem;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    border: 1px solid var(--c-border);
}

.entry-thumb img {
    width: 100%;
    height: auto;
}

.entry-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--c-border);
}

.entry-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .5rem;
    font-size: .8125rem;
}

.entry-tags__label { color: var(--c-text-dim); }

.entry-tag {
    padding: .25rem .625rem;
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-full);
    color: var(--c-text-muted);
    font-size: .75rem;
}

.entry-tag:hover {
    border-color: var(--bilio-primary);
    color: var(--bilio-primary);
}

/* Prose (long-form content) */
.prose {
    font-size: 1.0625rem;
    line-height: 1.75;
    color: #cbd5e1;
}

.prose > * + * {
    margin-top: 1.25em;
}

.prose h2 {
    margin-top: 2em;
    font-size: 1.625rem;
    color: var(--c-text);
}

.prose h3 {
    margin-top: 1.75em;
    font-size: 1.3125rem;
    color: var(--c-text);
}

.prose h4 {
    margin-top: 1.5em;
    font-size: 1.125rem;
    color: var(--c-text);
}

.prose a {
    color: #93c5fd;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.prose a:hover { color: var(--bilio-primary); }

.prose ul, .prose ol {
    padding-left: 1.5em;
}

.prose li + li { margin-top: .5em; }

.prose blockquote {
    margin: 1.75em 0;
    padding: 1rem 1.25rem;
    border-left: 3px solid var(--bilio-primary);
    background: rgba(59, 130, 246, .06);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    color: var(--c-text-muted);
    font-style: italic;
}

.prose code {
    font-family: var(--font-mono);
    font-size: .875em;
    background: rgba(255, 255, 255, .07);
    border: 1px solid var(--c-border);
    padding: .125em .375em;
    border-radius: var(--radius-sm);
}

.prose pre {
    background: #050810;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    overflow-x: auto;
    font-size: .875rem;
    line-height: 1.6;
}

.prose pre code {
    background: none;
    border: 0;
    padding: 0;
}

.prose img {
    border-radius: var(--radius-xl);
    border: 1px solid var(--c-border);
}

.prose table {
    width: 100%;
    border-collapse: collapse;
    font-size: .9375rem;
    display: block;
    overflow-x: auto;
}

.prose th, .prose td {
    padding: .625rem .875rem;
    border: 1px solid var(--c-border);
    text-align: left;
}

.prose th {
    background: rgba(255, 255, 255, .04);
    color: var(--c-text);
    font-weight: 600;
}

.prose hr {
    border: 0;
    border-top: 1px solid var(--c-border);
    margin: 2.5em 0;
}

/* --------------------------------------------------------------------------
   12. FAQ
   -------------------------------------------------------------------------- */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.faq-item {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.faq-item__summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.125rem 1.25rem;
    cursor: pointer;
    font-weight: 600;
    font-size: .9375rem;
    list-style: none;
    min-height: 44px;
    transition: color var(--transition);
}

.faq-item__summary::-webkit-details-marker { display: none; }

.faq-item__summary:hover { color: var(--bilio-primary); }

.faq-item__icon {
    font-size: 1.375rem;
    color: var(--c-text-dim);
    transition: transform var(--transition), color var(--transition);
    flex-shrink: 0;
    line-height: 1;
}

.faq-item[open] .faq-item__icon {
    transform: rotate(45deg);
    color: var(--bilio-primary);
}

.faq-item__answer {
    padding: 0 1.25rem 1.25rem;
    font-size: .875rem;
    color: var(--c-text-dim);
    line-height: 1.7;
}

.faq-section {
    margin-block: 3rem;
}

/* --------------------------------------------------------------------------
   13. Breadcrumbs
   -------------------------------------------------------------------------- */
.bilio-breadcrumbs {
    margin-bottom: 1.5rem;
    font-size: .8125rem;
}

.bilio-breadcrumbs__list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .375rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.bilio-breadcrumbs__item {
    display: inline-flex;
    align-items: center;
    gap: .375rem;
    color: var(--c-text-dim);
}

.bilio-breadcrumbs__item:not(:last-child)::after {
    content: "/";
    color: var(--c-text-faint);
}

.bilio-breadcrumbs__item a {
    color: var(--c-text-muted);
}

.bilio-breadcrumbs__item a:hover {
    color: var(--bilio-primary);
}

.bilio-breadcrumbs__item--current {
    color: var(--c-text);
}

/* --------------------------------------------------------------------------
   14. Pagination
   -------------------------------------------------------------------------- */
.pagination {
    margin-top: 2.5rem;
    display: flex;
    justify-content: center;
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    align-items: center;
}

.page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding-inline: .625rem;
    border-radius: var(--radius-lg);
    background: var(--glass-bg);
    border: 1px solid var(--c-border);
    font-size: .875rem;
    font-weight: 600;
    color: var(--c-text-muted);
    transition: all var(--transition);
}

.page-numbers:hover,
.page-numbers.current {
    background: var(--bilio-primary);
    border-color: var(--bilio-primary);
    color: #fff;
}

.page-numbers.dots {
    background: none;
    border: 0;
}

/* --------------------------------------------------------------------------
   15. Ads
   -------------------------------------------------------------------------- */
.ad-slot {
    position: relative;
    max-width: var(--container);
    margin: 2rem auto;
    padding: 1rem;
    text-align: center;
    border: 1px dashed var(--c-border);
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, .015);
    min-height: 0;
    overflow: hidden;
}

.ad-slot:empty { display: none; }

.ad-slot__label {
    display: block;
    font-size: .625rem;
    text-transform: uppercase;
    letter-spacing: .15em;
    color: var(--c-text-faint);
    margin-bottom: .5rem;
}

.ad-slot iframe,
.ad-slot ins {
    max-width: 100%;
}

/* --------------------------------------------------------------------------
   16. Footer
   -------------------------------------------------------------------------- */
.site-footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--c-border);
    margin-top: 3rem;
    padding-block: 2rem;
}

.site-footer__widgets {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--c-border);
}

.site-footer__bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    text-align: center;
}

.site-footer__copy {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .875rem;
    color: var(--c-text-dim);
}

.menu--footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: .75rem;
    color: var(--c-text-faint);
}

.menu--footer .menu__link {
    color: var(--c-text-faint);
    font-size: .75rem;
}

.menu--footer .menu__link:hover { color: var(--c-text-muted); }

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.social-links a {
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--c-border);
    color: var(--c-text-dim);
    transition: all var(--transition);
}

.social-links a:hover {
    background: var(--bilio-primary);
    border-color: var(--bilio-primary);
    color: #fff;
}

.social-links .icon {
    width: .875rem;
    height: .875rem;
}

.site-footer__text {
    margin-top: 1.25rem;
    text-align: center;
    font-size: .75rem;
    color: var(--c-text-faint);
}

/* --------------------------------------------------------------------------
   17. Toast
   -------------------------------------------------------------------------- */
.toast {
    position: fixed;
    bottom: 1.25rem;
    right: 1.25rem;
    z-index: 90;
    max-width: 22rem;
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-card);
    transform: translateY(18px);
    opacity: 0;
    pointer-events: none;
    transition: .3s ease;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.toast__inner {
    display: flex;
    align-items: flex-start;
    gap: .75rem;
}

.toast__icon {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-md);
    background: rgba(59, 130, 246, .15);
    color: #60a5fa;
    display: grid;
    place-items: center;
    font-size: .8125rem;
    font-weight: 700;
    flex-shrink: 0;
}

.toast__title {
    font-size: .875rem;
    font-weight: 600;
}

.toast__message {
    font-size: .75rem;
    color: var(--c-text-dim);
    margin-top: .125rem;
}

.toast__close {
    margin-left: auto;
    color: var(--c-text-faint);
    font-size: 1.125rem;
    line-height: 1;
    padding: .25rem;
    transition: color var(--transition);
    flex-shrink: 0;
}

.toast__close:hover { color: var(--c-text); }

/* --------------------------------------------------------------------------
   18. Archive / Page headers
   -------------------------------------------------------------------------- */
.archive-header {
    margin-bottom: 2rem;
}

.archive-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -.03em;
    margin-bottom: .5rem;
}

.archive-title .search-query {
    color: var(--bilio-primary);
}

.archive-description,
.section--blog .section-desc {
    color: var(--c-text-muted);
    font-size: .9375rem;
}

/* Term filter */
.term-filter {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 1.75rem;
}

.term-filter__link {
    padding: .4375rem .875rem;
    background: var(--glass-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-full);
    font-size: .8125rem;
    color: var(--c-text-muted);
    transition: all var(--transition);
    min-height: 36px;
    display: inline-flex;
    align-items: center;
}

.term-filter__link:hover,
.term-filter__link.is-active {
    background: var(--bilio-primary);
    border-color: var(--bilio-primary);
    color: #fff;
}

/* --------------------------------------------------------------------------
   19. Tool page
   -------------------------------------------------------------------------- */
.tool-hero {
    padding-block: clamp(2.5rem, 7vw, 4.5rem) clamp(2rem, 5vw, 3rem);
    text-align: center;
    background: radial-gradient(circle at 50% -20%, rgba(59, 130, 246, .14), transparent 34rem);
}

.tool-hero__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tool-hero__inner .bilio-breadcrumbs {
    align-self: flex-start;
}

.tool-hero__title {
    font-size: clamp(2rem, 6vw, 3.25rem);
    font-weight: 900;
    letter-spacing: -.035em;
    margin-bottom: .875rem;
    max-width: 46rem;
}

.tool-hero__desc {
    color: var(--c-text-muted);
    font-size: clamp(.9375rem, 2vw, 1.0625rem);
    max-width: 42rem;
    margin-bottom: 2.25rem;
    line-height: 1.65;
}

.tool-features {
    margin-block: 3rem;
}

/* Related sections */
.related-section {
    margin-block: 3rem;
}

/* Post navigation */
.post-nav {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-block: 3rem;
}

.post-nav__link {
    display: flex;
    flex-direction: column;
    gap: .375rem;
    padding: 1.125rem 1.25rem;
    border-radius: var(--radius-xl);
    transition: border-color var(--transition), transform var(--transition);
    height: 100%;
}

.post-nav__link:hover {
    border-color: rgba(96, 165, 250, .4);
    transform: translateY(-2px);
    color: inherit;
}

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

.post-nav__label {
    font-size: .75rem;
    color: var(--c-text-dim);
}

.post-nav__title {
    font-size: .9375rem;
    font-weight: 600;
    color: var(--c-text);
}

/* Disclaimer */
.disclaimer {
    padding: 1.125rem 1.25rem;
    border-radius: var(--radius-xl);
    font-size: .8125rem;
    line-height: 1.7;
    color: var(--c-text-muted);
    margin-top: 2.5rem;
    border-left: 3px solid #fbbf24;
}

.disclaimer strong {
    color: #fbbf24;
    display: block;
    margin-bottom: .25rem;
}

/* --------------------------------------------------------------------------
   20. 404
   -------------------------------------------------------------------------- */
.error-404 {
    text-align: center;
}

.error-404__code {
    font-size: clamp(6rem, 22vw, 13rem);
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(180deg, rgba(255, 255, 255, .14), rgba(255, 255, 255, .02));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
    letter-spacing: -.05em;
    user-select: none;
}

.error-404__tools,
.error-404__posts {
    margin-top: 3rem;
    text-align: left;
}

.error-404__actions {
    margin-top: 2.5rem;
}

.error-404 .search-form-wrap {
    max-width: 34rem;
    margin-inline: auto;
}

/* --------------------------------------------------------------------------
   21. Empty states
   -------------------------------------------------------------------------- */
.empty-state {
    padding: 3rem 1.75rem;
    border-radius: var(--radius-2xl);
    text-align: center;
}

.empty-state h2 { margin-bottom: .5rem; }

.empty-state p {
    color: var(--c-text-muted);
    margin-bottom: 1.25rem;
}

.empty-state .search-form {
    max-width: 26rem;
    margin-inline: auto;
}

.empty-state .tool-grid {
    margin-block: 1.5rem;
    text-align: left;
}

/* --------------------------------------------------------------------------
   22. Comments
   -------------------------------------------------------------------------- */
.comments-area {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--c-border);
}

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

.comment-list .comment-body {
    padding: 1.25rem;
    background: var(--glass-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    margin-bottom: 1rem;
}

.comment-list .children {
    list-style: none;
    margin: 1rem 0 0;
    padding: 0 0 0 1.5rem;
    border-left: 1px solid var(--c-border);
}

.comment-author .avatar {
    border-radius: var(--radius-full);
    margin-right: .625rem;
}

.comment-metadata {
    font-size: .75rem;
    color: var(--c-text-dim);
}

.comment-respond { margin-top: 1.5rem; }

.comment-form label {
    display: block;
    font-size: .8125rem;
    font-weight: 600;
    margin-bottom: .375rem;
    color: var(--c-text-muted);
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
    width: 100%;
    padding: .75rem .875rem;
    background: rgba(2, 6, 16, .7);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    color: var(--c-text);
    font-size: .9375rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    margin-bottom: 1rem;
}

.comment-form input:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: rgba(59, 130, 246, .5);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, .1);
}

.comment-form textarea { min-height: 8rem; resize: vertical; }

.comment-form .form-submit {
    display: inline-flex;
}

/* --------------------------------------------------------------------------
   23. Widgets
   -------------------------------------------------------------------------- */
.widget-area {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.widget {
    background: var(--glass-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-2xl);
    padding: 1.25rem;
}

.widget-title {
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: .75rem;
    border-bottom: 1px solid var(--c-border);
}

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

.widget ul li {
    padding-block: .5rem;
    border-bottom: 1px solid var(--c-border);
    font-size: .875rem;
    color: var(--c-text-muted);
}

.widget ul li:last-child { border-bottom: 0; }

.widget ul li a:hover { color: var(--bilio-primary); }

/* Layout with sidebar */
@media (min-width: 1024px) {
    .has-sidebar .section-pad > .post-grid {
        display: grid;
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   24. Contact form
   -------------------------------------------------------------------------- */
.contact-form {
    padding: 1.75rem;
    border-radius: var(--radius-2xl);
    margin-top: 1.75rem;
}

.form-row {
    margin-bottom: 1.125rem;
}

.form-row label {
    display: block;
    font-size: .8125rem;
    font-weight: 600;
    margin-bottom: .375rem;
    color: var(--c-text-muted);
}

.form-row .required { color: #f87171; }

.form-row input,
.form-row textarea {
    width: 100%;
    padding: .75rem .875rem;
    background: rgba(2, 6, 16, .7);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    color: var(--c-text);
    font-size: .9375rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-row input:focus,
.form-row textarea:focus {
    outline: none;
    border-color: rgba(59, 130, 246, .5);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, .1);
}

.form-row textarea { resize: vertical; min-height: 8rem; }

.form-note {
    font-size: .75rem;
    color: var(--c-text-faint);
    margin-bottom: 1.25rem;
}

/* --------------------------------------------------------------------------
   25. Accessibility: reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }

    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}

/* --------------------------------------------------------------------------
   26. Responsive
   -------------------------------------------------------------------------- */
@media (min-width: 480px) {
    .downloader-result__options {
        grid-template-columns: 1fr 1fr;
    }

    .hero__stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 640px) {
    .downloader__form {
        flex-direction: row;
        align-items: stretch;
    }

    .downloader__submit {
        width: auto;
        flex-shrink: 0;
    }

    .downloader-result__card {
        flex-direction: row;
        padding: 1.5rem;
        gap: 1.5rem;
    }

    .downloader-result__thumb {
        width: 16rem;
        flex-shrink: 0;
        aspect-ratio: 16 / 9;
    }

    .post-grid,
    .tool-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .card-grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .post-nav {
        grid-template-columns: 1fr 1fr;
    }

    .site-footer__bottom {
        flex-direction: row;
        text-align: left;
    }
}

@media (min-width: 768px) {
    .site-nav__menu {
        display: block;
    }

    .nav-toggle {
        display: none;
    }

    .nav-cta {
        display: inline-flex;
    }

    .nav-search-toggle {
        display: grid;
    }

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

    .mobile-menu { display: none !important; }
}

@media (min-width: 1024px) {
    .post-grid--3,
    .tool-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .tool-grid--compact {
        grid-template-columns: repeat(3, 1fr);
    }

    .site-footer__widgets {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }

    /* Sidebar layout */
    .has-sidebar .section-pad {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 20rem;
        gap: 2.5rem;
        align-items: start;
    }

    .has-sidebar .widget-area {
        position: sticky;
        top: calc(var(--header-h) + 1.5rem);
    }
}

@media (min-width: 1280px) {
    :root {
        --gutter: 2rem;
    }
}

/* Small phones: prevent horizontal scroll */
@media (max-width: 360px) {
    .downloader { padding: .625rem; }
    .downloader__input { padding-left: 2.5rem; font-size: .875rem; }
    .hero__title { font-size: 2.125rem; }
}