/* =============================================
   APEX DARKMODE GHOST THEME — screen.css
   Design System + Component Styles
   ============================================= */

/* -----------------------------------------
   Design Tokens
   ----------------------------------------- */
:root {
    /* Colors — DARK MODE INVERTED */
    --color-primary:        #EEEEEE;
    --color-secondary:      #9CA3AF;
    --color-bg:             #111111;
    --color-bg-alt:         #1A1A1A;
    --color-border:         #2D2D2D;
    --color-input-bg:       #1F1F1F;
    --color-button-text:    #111111;

    /* Typography */
    --font-sans:            system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    --font-serif:           Georgia, 'Times New Roman', serif;
    --font-mono:            'SF Mono', 'Fira Code', monospace;
    --weight-normal: 400;
    --weight-medium: 500;
    --weight-semibold: 600;
    --weight-bold: 700;
    --size-xs: 0.75rem;
    --size-sm: 0.875rem;
    --size-base: 1rem;
    --size-lg: 1.125rem;
    --size-xl: 1.25rem;
    --size-2xl: 1.5rem;
    --size-3xl: 1.875rem;
    --size-4xl: 2.25rem;
    --size-5xl: 3rem;
    --leading-tight: 1.2;
    --leading-snug: 1.4;
    --leading-normal: 1.6;
    --leading-relaxed: 1.75;

    /* Spacing (8px grid) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Layout */
    --max-width:        1200px;
    --sidebar-width:    320px;
    --content-width:    calc(var(--max-width) - var(--sidebar-width) - var(--space-6));
    --grid-gap:         var(--space-6);

    /* Borders & Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows — lighter for dark backgrounds */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.5);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-reveal: 600ms ease;

    /* Z-Index */
    --z-header: 100;
    --z-dropdown: 200;
    --z-modal: 300;
    --z-toast: 400;
}

/* -----------------------------------------
   Reset & Base
   ----------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: var(--size-base);
    font-weight: var(--weight-normal);
    line-height: var(--leading-normal);
    color: var(--color-primary);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--weight-bold);
    line-height: var(--leading-tight);
}

/* -----------------------------------------
   Site Layout
   ----------------------------------------- */
.site-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-main {
    flex: 1;
}

/* Container — centers content at max-width */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
    width: 100%;
}

/* Two-column layout — used only where sidebar is needed */
.content-with-sidebar {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: var(--grid-gap);
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
}

.content-area {
    min-width: 0;
}

.sidebar {
    min-width: 0;
}

/* -----------------------------------------
   Header / Navigation
   ----------------------------------------- */
.gh-head {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition-base);
}

.gh-head.scrolled {
    box-shadow: var(--shadow-md);
}

.gh-head-inner {
    display: flex;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-4) var(--space-6);
}

.gh-head-brand {
    display: flex;
    align-items: center;
    margin-right: var(--space-8);
}

.gh-head-logo {
    font-size: var(--size-xl);
    font-weight: var(--weight-bold);
    color: var(--color-primary);
}

.gh-head-logo img {
    max-height: 40px;
    width: auto;
}

.gh-head-menu {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    margin-right: auto;
}

.gh-head-menu .nav {
    display: flex;
    list-style: none;
    gap: var(--space-6);
}

.gh-head-menu .nav li a {
    font-size: var(--size-sm);
    font-weight: var(--weight-medium);
    color: var(--color-secondary);
    transition: color var(--transition-fast);
}

.gh-head-menu .nav li a:hover {
    color: var(--color-primary);
}

.gh-head-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.gh-icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    color: var(--color-primary);
    display: flex;
    align-items: center;
}

.gh-head-link {
    font-size: var(--size-sm);
    font-weight: var(--weight-medium);
    color: var(--color-secondary);
}

.gh-head-link:hover {
    color: var(--color-primary);
}

.gh-head-btn {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-5);
    background-color: transparent;
    color: var(--color-primary);
    font-size: var(--size-sm);
    font-weight: var(--weight-semibold);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.gh-head-btn:hover {
    background-color: var(--color-bg-alt);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Hamburger (mobile) */
.gh-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.gh-burger-bar {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

/* -----------------------------------------
   Hero Signup Section
   ----------------------------------------- */
.hero-signup {
    text-align: center;
    padding: var(--space-16) var(--space-6);
    margin-bottom: var(--space-12);
}

.hero-signup-inner {
    max-width: 600px;
    margin: 0 auto;
}

.hero-signup-title {
    font-size: var(--size-5xl);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-4);
}

.hero-signup-description {
    font-size: var(--size-lg);
    color: var(--color-secondary);
    margin-bottom: var(--space-8);
    line-height: var(--leading-relaxed);
}

.hero-signup-input-group {
    display: flex;
    gap: var(--space-2);
    max-width: 440px;
    margin: 0 auto;
}

.hero-signup-input {
    flex: 1;
    padding: var(--space-3) var(--space-5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background-color: var(--color-input-bg);
    font-size: var(--size-base);
    font-family: var(--font-sans);
    outline: none;
    color: var(--color-primary);
    transition: border-color var(--transition-fast);
}

.hero-signup-input:focus {
    border-color: var(--color-primary);
}

.hero-signup-input::placeholder {
    color: var(--color-secondary);
}

.hero-signup-button {
    padding: var(--space-2) var(--space-6);
    background-color: var(--color-primary);
    color: var(--color-button-text);
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--size-sm);
    font-weight: var(--weight-semibold);
    cursor: pointer;
    transition: opacity var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.hero-signup-button:hover {
    opacity: 0.85;
}

.hero-signup-message,
.hero-signup-success {
    margin-top: var(--space-4);
    font-size: var(--size-sm);
}

/* -----------------------------------------
   Hero Posts (50/50 Split)
   ----------------------------------------- */
.hero-posts-section {
    margin-bottom: var(--space-12);
}

.hero-posts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--grid-gap);
}

.hero-post-large {
    display: flex;
    flex-direction: column;
}

.hero-post-image {
    display: block;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.hero-post-image img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.hero-post-image:hover img {
    transform: scale(1.02);
}

.hero-post-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--size-xs);
    font-weight: var(--weight-medium);
    color: var(--color-secondary);
    margin-bottom: var(--space-2);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.hero-post-tag:hover {
    background-color: var(--color-border);
    color: var(--color-primary);
}

.hero-post-title {
    font-size: var(--size-3xl);
    margin-bottom: var(--space-3);
}

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

.hero-post-title a:hover {
    opacity: 0.75;
}

.hero-post-excerpt {
    font-size: var(--size-base);
    color: var(--color-secondary);
    line-height: var(--leading-normal);
    margin-bottom: var(--space-4);
}

.hero-post-readmore {
    font-size: var(--size-sm);
    font-weight: var(--weight-medium);
    color: var(--color-secondary);
}

.hero-post-readmore:hover {
    color: var(--color-primary);
}

/* Hero Card Grid (right side) */
.hero-post-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.hero-card {
    display: flex;
    flex-direction: column;
}

.hero-card-image {
    display: block;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--space-3);
}

.hero-card-image img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.hero-card-image:hover img {
    transform: scale(1.02);
}

.hero-card-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--size-xs);
    font-weight: var(--weight-medium);
    color: var(--color-secondary);
    margin-bottom: var(--space-1);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.hero-card-tag:hover {
    background-color: var(--color-border);
    color: var(--color-primary);
}

.hero-card-title {
    font-size: var(--size-base);
    font-weight: var(--weight-semibold);
    margin-bottom: var(--space-2);
    line-height: var(--leading-snug);
}

.hero-card-title a {
    color: var(--color-primary);
}

.hero-card-readmore {
    font-size: var(--size-sm);
    font-weight: var(--weight-medium);
    color: var(--color-secondary);
}

.hero-card-readmore:hover {
    color: var(--color-primary);
}

/* -----------------------------------------
   Card Author Avatars (overlay on images)
   Shared across hero posts, hero cards, carousel, post-card
   ----------------------------------------- */
.hero-post-image-wrap,
.hero-card-image-wrap,
.carousel-card-image-wrap,
.post-card-image-wrap {
    position: relative;
}

.hero-post-image-wrap .hero-post-image,
.hero-card-image-wrap .hero-card-image,
.carousel-card-image-wrap .carousel-card-image,
.post-card-image-wrap .post-card-image {
    margin-bottom: 0;
}

.hero-post-image-wrap {
    margin-bottom: var(--space-4);
}

.hero-card-image-wrap {
    margin-bottom: var(--space-3);
}

.carousel-card-image-wrap {
    margin-bottom: var(--space-3);
}

.post-card-image-wrap {
    margin-bottom: var(--space-4);
}

.card-avatars {
    position: absolute;
    bottom: var(--space-3);
    left: var(--space-3);
    display: flex;
    z-index: 2;
}

/* Large avatars — hero post (big card) */
.card-avatars-lg .card-avatar {
    display: block;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

/* Small avatars — hero cards, carousel, post-card */
.card-avatars-sm .card-avatar {
    display: block;
    width: 26px;
    height: 26px;
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.card-avatars-lg .card-avatar + .card-avatar,
.card-avatars-sm .card-avatar + .card-avatar {
    margin-left: var(--space-1);
}

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

.card-avatar-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-alt);
    color: var(--color-secondary);
    font-weight: var(--weight-semibold);
}

.card-avatars-lg .card-avatar-fallback {
    font-size: var(--size-sm);
}

.card-avatars-sm .card-avatar-fallback {
    font-size: var(--size-xs);
}

/* -----------------------------------------
   Post Feed (Date + Title)
   ----------------------------------------- */
.post-feed-section {
    margin-bottom: var(--space-12);
}

.section-title {
    font-size: var(--size-2xl);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.post-feed-item {
    display: flex;
    align-items: baseline;
    gap: var(--space-6);
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border);
}

.post-feed-date {
    font-size: var(--size-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-secondary);
    text-transform: uppercase;
    white-space: nowrap;
    min-width: 60px;
}

.post-feed-title {
    font-size: var(--size-lg);
    font-weight: var(--weight-semibold);
    line-height: var(--leading-snug);
}

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

.post-feed-title a:hover {
    opacity: 0.75;
}

/* -----------------------------------------
   Pagination / Load More
   ----------------------------------------- */
.pagination {
    text-align: center;
    margin-top: var(--space-8);
}

.load-more-btn {
    display: inline-flex;
    align-items: center;
    padding: var(--space-3) var(--space-8);
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--size-sm);
    font-weight: var(--weight-semibold);
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.load-more-btn:hover {
    background-color: var(--color-bg-alt);
    border-color: var(--color-primary);
}

/* -----------------------------------------
   Carousel
   ----------------------------------------- */
.carousel-section {
    margin-bottom: var(--space-12);
}

.carousel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.carousel-title {
    font-size: var(--size-2xl);
    font-weight: var(--weight-bold);
}

.carousel-arrows {
    display: flex;
    gap: var(--space-2);
}

.carousel-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
    color: var(--color-primary);
}

.carousel-arrow:hover {
    background-color: var(--color-bg-alt);
    border-color: var(--color-primary);
}

.carousel-track {
    display: flex;
    gap: var(--space-6);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: var(--space-4);
}

.carousel-track::-webkit-scrollbar {
    display: none;
}

.carousel-card {
    flex: 0 0 250px;
    scroll-snap-align: start;
}

.carousel-card-image {
    display: block;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--space-3);
}

.carousel-card-image img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.carousel-card-image:hover img {
    transform: scale(1.02);
}

.carousel-card-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--size-xs);
    font-weight: var(--weight-medium);
    color: var(--color-secondary);
    margin-bottom: var(--space-1);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.carousel-card-tag:hover {
    background-color: var(--color-border);
    color: var(--color-primary);
}

.carousel-card-title {
    font-size: var(--size-base);
    font-weight: var(--weight-semibold);
    line-height: var(--leading-snug);
}

.carousel-card-title a {
    color: var(--color-primary);
}

.carousel-card-readmore {
    font-size: var(--size-sm);
    font-weight: var(--weight-medium);
    color: var(--color-secondary);
}

.carousel-card-readmore:hover {
    color: var(--color-primary);
}

/* -----------------------------------------
   CTA Signup Card
   ----------------------------------------- */
.cta-card {
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-xl);
    padding: var(--space-12) var(--space-8);
    text-align: center;
    margin-bottom: var(--space-12);
}

.cta-card-inner {
    max-width: 500px;
    margin: 0 auto;
}

.cta-card-title {
    font-size: var(--size-3xl);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-3);
}

.cta-card-description {
    font-size: var(--size-lg);
    color: var(--color-secondary);
    margin-bottom: var(--space-6);
    line-height: var(--leading-relaxed);
}

.cta-card-input-group {
    display: flex;
    gap: var(--space-2);
}

.cta-card-input {
    flex: 1;
    padding: var(--space-3) var(--space-5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background-color: var(--color-bg);
    font-size: var(--size-base);
    font-family: var(--font-sans);
    outline: none;
    color: var(--color-primary);
    transition: border-color var(--transition-fast);
}

.cta-card-input:focus {
    border-color: var(--color-primary);
}

.cta-card-button {
    padding: var(--space-3) var(--space-6);
    background-color: var(--color-primary);
    color: var(--color-button-text);
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--size-base);
    font-weight: var(--weight-semibold);
    cursor: pointer;
    transition: opacity var(--transition-fast);
    white-space: nowrap;
}

.cta-card-button:hover {
    opacity: 0.85;
}

.cta-card-error,
.cta-card-success {
    margin-top: var(--space-4);
    font-size: var(--size-sm);
}

/* -----------------------------------------
   Sidebar
   ----------------------------------------- */
.sidebar-inner {
    position: sticky;
    top: calc(60px + var(--space-8));
}

.sidebar-about {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.sidebar-logo {
    width: 40px;
    height: auto;
    border-radius: var(--radius-md);
    flex-shrink: 0;
    object-fit: contain;
}

.sidebar-title {
    font-size: var(--size-lg);
    font-weight: var(--weight-bold);
    margin: 0;
}

.sidebar-description {
    font-size: var(--size-sm);
    color: var(--color-secondary);
    line-height: var(--leading-normal);
    margin-bottom: var(--space-4);
}

.sidebar-signup-field {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background-color: var(--color-bg);
    padding: var(--space-1);
    padding-left: var(--space-4);
    transition: border-color var(--transition-fast);
}

.sidebar-signup-field:focus-within {
    border-color: var(--color-primary);
}

.sidebar-signup-input {
    flex: 1;
    min-width: 0;
    padding: var(--space-1) 0;
    border: none;
    background: transparent;
    font-size: var(--size-sm);
    font-family: var(--font-sans);
    outline: none;
    color: var(--color-primary);
}

.sidebar-signup-input::placeholder {
    color: var(--color-secondary);
}

.sidebar-signup-button {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--size-xs);
    font-weight: var(--weight-semibold);
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.sidebar-signup-button:hover {
    background-color: var(--color-bg-alt);
    border-color: var(--color-primary);
}

.sidebar-signup-error {
    width: 100%;
    margin-top: var(--space-1);
    font-size: var(--size-xs);
    color: var(--color-secondary);
}

.sidebar-heading {
    font-size: var(--size-sm);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-secondary);
    margin-bottom: var(--space-4);
}

/* Sidebar Tag Cloud — pill format matching article footer tags */
.sidebar-tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.sidebar-tag-pill {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-bg-alt);
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    font-size: var(--size-sm);
    color: var(--color-secondary);
    font-weight: var(--weight-medium);
    transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
    white-space: nowrap;
}

.sidebar-tag-pill:hover {
    background-color: var(--color-border);
    color: var(--color-primary);
}

/* Active state — highlights tags belonging to the current post */
.sidebar-tag-pill.active {
    background-color: var(--color-primary);
    color: var(--color-button-text);
    border-color: var(--color-primary);
}

.sidebar-tag-pill.active:hover {
    opacity: 0.9;
    color: var(--color-button-text);
}

/* -----------------------------------------
   Post Card (shared component)
   ----------------------------------------- */
.post-card {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--space-8);
}

.post-card-image {
    display: block;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.post-card-image img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform var(--transition-base);
}

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

.post-card-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--size-xs);
    font-weight: var(--weight-medium);
    color: var(--color-secondary);
    margin-bottom: var(--space-2);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.post-card-tag:hover {
    background-color: var(--color-border);
    color: var(--color-primary);
}

.post-card-title {
    font-size: var(--size-xl);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-2);
    line-height: var(--leading-snug);
}

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

.post-card-title a:hover {
    opacity: 0.75;
}

.post-card-excerpt {
    font-size: var(--size-sm);
    color: var(--color-secondary);
    line-height: var(--leading-normal);
    margin-bottom: var(--space-3);
}

.post-card-meta {
    font-size: var(--size-xs);
    color: var(--color-secondary);
    display: flex;
    gap: var(--space-3);
}

/* -----------------------------------------
   Tag & Author Archive Feeds
   ----------------------------------------- */
.tag-header,
.author-header {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.tag-title,
.author-name {
    font-size: var(--size-4xl);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-3);
}

.tag-description,
.author-bio {
    font-size: var(--size-lg);
    color: var(--color-secondary);
    line-height: var(--leading-relaxed);
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.tag-feed,
.author-feed {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--grid-gap);
}

/* -----------------------------------------
   Single Post (post.hbs)
   ----------------------------------------- */
.gh-article {
    margin-bottom: var(--space-12);
}

.gh-article-image {
    margin-bottom: var(--space-6);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.gh-article-image img {
    width: 100%;
}

.gh-article-image figcaption {
    margin-top: var(--space-3);
    font-size: var(--size-sm);
    color: var(--color-secondary);
    text-align: center;
}

.gh-article-tag {
    display: inline-block;
    font-size: var(--size-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-secondary);
    margin-bottom: var(--space-3);
}

.gh-article-title {
    font-size: var(--size-4xl);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-4);
    line-height: var(--leading-tight);
}

.gh-article-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

/* Overlapping author avatars */
.gh-article-avatars {
    display: flex;
    flex-shrink: 0;
}

.gh-article-avatar {
    display: block;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    overflow: hidden;
    border: 2px solid var(--color-bg);
    position: relative;
}

.gh-article-avatar:not(:first-child) {
    margin-left: -12px;
}

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

.gh-article-avatar-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-alt);
    color: var(--color-secondary);
    font-size: var(--size-lg);
    font-weight: var(--weight-semibold);
}

/* Author name + date/reading time */
.gh-article-meta-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.gh-article-author-name {
    font-size: var(--size-base);
    font-weight: var(--weight-semibold);
    color: var(--color-primary);
    letter-spacing: -0.01em;
}

.gh-article-author-name a {
    color: var(--color-primary);
}

.gh-article-author-name a:hover {
    opacity: 0.75;
}

.gh-article-meta-details {
    font-size: var(--size-sm);
    color: var(--color-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.gh-article-meta-sep {
    color: var(--color-border);
}

/* Summary + Share Buttons (pills in meta bar) */
.gh-article-summary-btn,
.gh-article-share-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--size-sm);
    font-weight: var(--weight-semibold);
    font-family: var(--font-sans);
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.gh-article-summary-btn {
    margin-left: auto;
}

.gh-article-summary-btn:hover,
.gh-article-share-btn:hover {
    background-color: var(--color-bg-alt);
    border-color: var(--color-primary);
}

.gh-article-summary-btn.is-active {
    background-color: var(--color-primary);
    color: var(--color-button-text);
    border-color: var(--color-primary);
}

.gh-article-summary-btn svg,
.gh-article-share-btn svg {
    flex-shrink: 0;
}

/* -----------------------------------------
   Summary Panel (slide reveal)
   ----------------------------------------- */
.summary-panel {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 400ms cubic-bezier(0.4, 0, 0.2, 1),
                opacity 300ms ease,
                margin 400ms cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: 0;
}

.summary-panel.is-open {
    max-height: 600px;
    opacity: 1;
    margin-top: var(--space-6);
}

.summary-panel-inner {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-6);
    padding: var(--space-6);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.summary-section-title {
    font-size: var(--size-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-secondary);
    margin-bottom: var(--space-3);
}

.summary-toc-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.summary-toc-list li a {
    font-size: var(--size-sm);
    color: var(--color-primary);
    font-weight: var(--weight-medium);
    line-height: var(--leading-snug);
    transition: opacity var(--transition-fast);
}

.summary-toc-list li a:hover {
    opacity: 0.6;
}

.summary-excerpt {
    font-size: var(--size-sm);
    color: var(--color-secondary);
    line-height: var(--leading-normal);
}

/* Hide summary panel if no TOC items generated */
.summary-panel.is-empty {
    display: none;
}

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

/* -----------------------------------------
   Share Modal
   ----------------------------------------- */
.share-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background-color: rgba(0, 0, 0, 0.6);
    justify-content: center;
    align-items: center;
    padding: var(--space-6);
}

.share-modal-overlay.is-open {
    display: flex;
}

.share-modal {
    background-color: var(--color-bg);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 400px;
    padding: var(--space-6);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    animation: share-modal-in 200ms ease;
}

@keyframes share-modal-in {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.share-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.share-modal-title {
    font-size: var(--size-lg);
    font-weight: var(--weight-bold);
}

.share-modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-secondary);
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.share-modal-close:hover {
    background-color: var(--color-bg-alt);
    color: var(--color-primary);
}

.share-modal-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.share-modal-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-primary);
    font-family: var(--font-sans);
    text-decoration: none;
    transition: opacity var(--transition-fast);
    padding: var(--space-2);
    border-radius: var(--radius-md);
}

.share-modal-option:hover {
    opacity: 0.75;
}

.share-modal-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    color: #FFFFFF;
}

.share-icon-facebook { background-color: #1877F2; }
.share-icon-x { background-color: #EEEEEE; color: #111111; }
.share-icon-linkedin { background-color: #0A66C2; }
.share-icon-email { background-color: #9CA3AF; color: #FFFFFF; }
.share-icon-whatsapp { background-color: #25D366; }
.share-icon-telegram { background-color: #26A5E4; }
.share-icon-threads { background-color: #EEEEEE; color: #111111; }
.share-icon-more { background-color: var(--color-bg-alt); color: var(--color-primary); }

.share-modal-label {
    font-size: var(--size-xs);
    font-weight: var(--weight-medium);
    color: var(--color-secondary);
}

/* Copy link bar */
.share-modal-copy {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background-color: var(--color-bg);
    padding: var(--space-1);
    padding-left: var(--space-4);
}

.share-modal-copy-input {
    flex: 1;
    min-width: 0;
    padding: var(--space-1) 0;
    border: none;
    background: transparent;
    font-size: var(--size-sm);
    font-family: var(--font-sans);
    outline: none;
    color: var(--color-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.share-modal-copy-btn {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-primary);
    color: var(--color-button-text);
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--size-xs);
    font-weight: var(--weight-semibold);
    font-family: var(--font-sans);
    cursor: pointer;
    transition: opacity var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.share-modal-copy-btn:hover {
    opacity: 0.85;
}

/* Koenig Editor Width Classes */
.kg-width-wide {
    margin-left: calc(-1 * var(--space-8));
    margin-right: calc(-1 * var(--space-8));
    max-width: none;
}

.kg-width-full {
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    max-width: none;
    width: 100vw;
}

.kg-width-wide img,
.kg-width-full img {
    width: 100%;
}

/* Ghost Content Styles */
.gh-content {
    font-size: var(--size-lg);
    line-height: var(--leading-relaxed);
}

.gh-content > * + * {
    margin-top: var(--space-6);
}

.gh-content h2 {
    font-size: var(--size-3xl);
    margin-top: var(--space-12);
}

.gh-content h3 {
    font-size: var(--size-2xl);
    margin-top: var(--space-10);
}

.gh-content h4 {
    font-size: var(--size-xl);
    margin-top: var(--space-8);
}

.gh-content blockquote {
    border-left: 3px solid var(--color-primary);
    padding-left: var(--space-6);
    font-style: italic;
    color: var(--color-secondary);
}

.gh-content pre {
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: var(--space-6);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: var(--size-sm);
}

.gh-content code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background-color: var(--color-bg-alt);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
}

.gh-content pre code {
    background: none;
    padding: 0;
}

.gh-content ul,
.gh-content ol {
    padding-left: var(--space-6);
}

.gh-content li + li {
    margin-top: var(--space-2);
}

.gh-content img {
    border-radius: var(--radius-md);
}

.gh-content figcaption {
    margin-top: var(--space-3);
    font-size: var(--size-sm);
    color: var(--color-secondary);
    text-align: center;
}

/* Article Footer / Tags */
.gh-article-footer {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

.gh-article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.gh-article-tags a {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-full);
    font-size: var(--size-sm);
    color: var(--color-secondary);
    font-weight: var(--weight-medium);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.gh-article-tags a:hover {
    background-color: var(--color-border);
    color: var(--color-primary);
}

/* -----------------------------------------
   Static Page (page.hbs)
   ----------------------------------------- */
/* Uses .gh-article styles — no extra rules needed */

/* -----------------------------------------
   Error Page
   ----------------------------------------- */
.error-page {
    text-align: center;
    padding: var(--space-20) var(--space-6);
}

.error-code {
    font-size: 6rem;
    font-weight: var(--weight-bold);
    color: var(--color-border);
    margin-bottom: var(--space-4);
}

.error-message {
    font-size: var(--size-xl);
    color: var(--color-secondary);
    margin-bottom: var(--space-8);
}

.error-link {
    display: inline-block;
    padding: var(--space-3) var(--space-6);
    background-color: var(--color-primary);
    color: var(--color-button-text);
    border-radius: var(--radius-full);
    font-weight: var(--weight-semibold);
    transition: opacity var(--transition-fast);
}

.error-link:hover {
    opacity: 0.85;
    color: var(--color-button-text);
}

/* -----------------------------------------
   Footer
   ----------------------------------------- */
.gh-foot {
    border-top: 1px solid var(--color-border);
    padding: var(--space-8) var(--space-6);
    margin-top: auto;
}

.gh-foot-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
    max-width: var(--max-width);
    margin: 0 auto;
}

.gh-copyright {
    font-size: var(--size-sm);
    color: var(--color-secondary);
}

.gh-foot-menu .nav {
    display: flex;
    list-style: none;
    gap: var(--space-4);
}

.gh-foot-menu .nav li a {
    font-size: var(--size-sm);
    color: var(--color-secondary);
}

.gh-foot-menu .nav li a:hover {
    color: var(--color-primary);
}

.gh-powered-by {
    font-size: var(--size-xs);
    color: var(--color-secondary);
}

.gh-powered-by a {
    color: var(--color-secondary);
}

.gh-powered-by a:hover {
    color: var(--color-primary);
}

/* -----------------------------------------
   Scroll Reveal Animations
   ----------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* -----------------------------------------
   Ghost Portal Button Override — force white for dark mode
   Ghost injects inline accent-color styles on these elements
   ----------------------------------------- */
.gh-portal-triggerbtn-container,
[data-testid="portal-trigger-button"] {
    background: #EEEEEE !important;
    background-color: #EEEEEE !important;
}

/* -----------------------------------------
   Responsive — Tablet (768px–1024px)
   ----------------------------------------- */
@media (max-width: 1024px) {
    .content-with-sidebar {
        grid-template-columns: 1fr;
        padding-top: var(--space-6);
        padding-bottom: var(--space-6);
    }

    .container {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    .sidebar {
        order: 2;
    }

    .sidebar-inner {
        position: static;
    }

    .hero-posts {
        grid-template-columns: 1fr;
    }

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

    .carousel-card {
        flex: 0 0 220px;
    }

    .gh-head-menu {
        display: none;
    }

    .gh-burger {
        display: flex;
    }

    /* Mobile nav open state */
    .gh-head.is-open .gh-head-menu {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-6);
        box-shadow: var(--shadow-lg);
    }

    .gh-head.is-open .gh-head-menu .nav {
        flex-direction: column;
        gap: var(--space-4);
    }
}

/* -----------------------------------------
   Responsive — Mobile (<768px)
   ----------------------------------------- */
@media (max-width: 768px) {
    .container {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    .hero-signup {
        padding: var(--space-10) var(--space-4);
    }

    .hero-signup-title {
        font-size: var(--size-3xl);
    }

    .hero-signup-input-group {
        flex-direction: column;
    }

    .hero-posts {
        grid-template-columns: 1fr;
    }

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

    .hero-post-title {
        font-size: var(--size-2xl);
    }

    .carousel-card {
        flex: 0 0 200px;
    }

    .cta-card {
        padding: var(--space-8) var(--space-4);
    }

    .cta-card-title {
        font-size: var(--size-2xl);
    }

    .cta-card-input-group {
        flex-direction: column;
    }

    .tag-feed,
    .author-feed {
        grid-template-columns: 1fr;
    }

    .gh-article-title {
        font-size: var(--size-3xl);
    }

    .gh-foot-inner {
        flex-direction: column;
        text-align: center;
    }

    .gh-head-actions .gh-head-link {
        display: none;
    }
}