/* ==========================================================================
   iClaude Ghost Theme — screen.css
   Version: 1.0.0
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Custom Properties
   -------------------------------------------------------------------------- */

:root {
    /* Colors */
    --color-bg:          #09090f;
    --color-surface:     #0e0e1a;
    --color-surface-2:   #13131f;
    --color-border:      rgba(255, 255, 255, 0.07);
    --color-border-soft: rgba(255, 255, 255, 0.04);
    --color-text:        #c4c1d4;
    --color-heading:     #f0eef8;
    --color-muted:       #6b6882;
    --color-accent:      #8b6fff;
    --color-accent-teal: #34d4b0;
    --color-accent-glow: rgba(139, 111, 255, 0.15);
    --color-teal-glow:   rgba(52, 212, 176, 0.12);
    --color-white:       #ffffff;

    /* Fonts */
    --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Newsreader', Georgia, 'Times New Roman', serif;
    --font-mono:  'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

    /* Font sizes */
    --text-xs:   0.6875rem;   /* 11px */
    --text-sm:   0.8125rem;   /* 13px */
    --text-base: 1rem;        /* 16px */
    --text-md:   1.0625rem;   /* 17px */
    --text-lg:   1.125rem;    /* 18px */
    --text-xl:   1.25rem;     /* 20px */
    --text-2xl:  1.5rem;      /* 24px */
    --text-3xl:  2rem;        /* 32px */
    --text-4xl:  2.5rem;      /* 40px */
    --text-5xl:  clamp(2.5rem, 6vw, 4.5rem);
    --text-hero: clamp(3rem, 8vw, 6rem);

    /* Spacing */
    --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;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Layout */
    --container-max: 1200px;
    --container-pad: clamp(1.25rem, 4vw, 2.5rem);
    --content-max:   720px;
    --header-max:    760px;

    /* Effects */
    --radius-sm:  6px;
    --radius-md:  12px;
    --radius-lg:  16px;
    --radius-xl:  24px;
    --radius-full: 9999px;

    --shadow-sm:   0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md:   0 4px 16px rgba(0, 0, 0, 0.5);
    --shadow-lg:   0 8px 32px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px rgba(139, 111, 255, 0.15);

    --transition-fast:   150ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-base:   250ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow:   400ms cubic-bezier(0.16, 1, 0.3, 1);

    /* Nav */
    --nav-height: 64px;
}

/* --------------------------------------------------------------------------
   2. Reset & Base
   -------------------------------------------------------------------------- */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

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

h1, h2, h3, h4, h5, h6 {
    color: var(--color-heading);
    font-family: var(--font-sans);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* --------------------------------------------------------------------------
   3. Layout — Container
   -------------------------------------------------------------------------- */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad);
}

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

.site-main {
    flex: 1;
}

/* --------------------------------------------------------------------------
   4. Navigation
   -------------------------------------------------------------------------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    background-color: rgba(9, 9, 15, 0.8);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--color-border);
}

.site-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    width: 100%;
}

/* Logo */
.site-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    flex-shrink: 0;
    transition: opacity var(--transition-fast);
}

.site-logo:hover {
    opacity: 0.8;
}

.logo-glyph {
    font-size: 1.4rem;
    color: var(--color-accent);
    line-height: 1;
}

.logo-name {
    font-family: var(--font-sans);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-heading);
    letter-spacing: -0.03em;
}

/* Nav center — Ghost's {{navigation}} outputs:
   <ul role="list">
     <li class="nav-[label]"><a href="...">Label</a></li>
   </ul>
*/

.nav-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-center ul[role="list"] {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-center ul[role="list"] li {
    display: inline-flex;
}

.nav-center ul[role="list"] li a {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-3);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-muted);
    letter-spacing: 0.01em;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
    text-decoration: none;
}

.nav-center ul[role="list"] li a:hover {
    color: var(--color-heading);
    background-color: var(--color-border);
}

.nav-center ul[role="list"] li.nav-current a,
.nav-center ul[role="list"] li a[aria-current="page"] {
    color: var(--color-heading);
    background-color: var(--color-border);
}

/* Nav right */
.nav-right {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

/* Burger button */
.burger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 9px;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    flex-shrink: 0;
    transition: background var(--transition-fast);
}

.burger-btn:hover {
    background: var(--color-border);
}

.burger-line {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-heading);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-base);
    transform-origin: center;
}

.burger-btn[aria-expanded="true"] .burger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.burger-btn[aria-expanded="true"] .burger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.burger-btn[aria-expanded="true"] .burger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu overlay */
.mobile-menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    background: rgba(9, 9, 15, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-8) var(--container-pad);
    flex-direction: column;
    gap: var(--space-6);
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity var(--transition-base), transform var(--transition-base);
    pointer-events: none;
}

.mobile-menu.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    padding: var(--space-5) 0;
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-heading);
    text-decoration: none;
    border-bottom: 1px solid var(--color-border);
    letter-spacing: -0.02em;
    transition: color var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--color-accent);
}

.mobile-nav-cta {
    padding-top: var(--space-2);
}

/* --------------------------------------------------------------------------
   5. Buttons
   -------------------------------------------------------------------------- */

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.625rem 1.25rem;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-white);
    background: var(--color-accent);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    letter-spacing: 0.01em;
    text-decoration: none;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    white-space: nowrap;
}

.btn-primary:hover {
    background: #9d82ff;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(139, 111, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.625rem 1.25rem;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    letter-spacing: 0.01em;
    text-decoration: none;
    transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
    white-space: nowrap;
}

.btn-ghost:hover {
    color: var(--color-heading);
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-1px);
}

.btn-subscribe {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-white);
    background: var(--color-accent);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    letter-spacing: 0.01em;
    text-decoration: none;
    transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
    white-space: nowrap;
}

.btn-subscribe:hover {
    background: #9d82ff;
    box-shadow: 0 0 20px rgba(139, 111, 255, 0.35);
}

/* --------------------------------------------------------------------------
   6. Hero Section
   -------------------------------------------------------------------------- */

.hero {
    position: relative;
    overflow: hidden;
    padding-block: clamp(5rem, 14vw, 10rem);
    display: flex;
    align-items: center;
}

/* Subtle dot grid overlay */
.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
    pointer-events: none;
    z-index: 0;
}

/* Purple radial glow */
.hero-glow {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.hero-glow::before {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: min(800px, 100%);
    height: 600px;
    background: radial-gradient(ellipse at center top, rgba(139, 111, 255, 0.18) 0%, rgba(52, 212, 176, 0.06) 45%, transparent 70%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin-inline: auto;
    text-align: center;
}

/* Hero badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.375rem 0.875rem;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-accent-teal);
    background: rgba(52, 212, 176, 0.08);
    border: 1px solid rgba(52, 212, 176, 0.2);
    border-radius: var(--radius-full);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: var(--space-8);
    animation: evFadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent-teal);
    flex-shrink: 0;
    animation: badgePulse 2s ease-in-out infinite;
}

.badge-glyph {
    font-size: 0.9em;
}

@keyframes badgePulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(52, 212, 176, 0.5); }
    50%       { opacity: 0.7; box-shadow: 0 0 0 4px rgba(52, 212, 176, 0); }
}

/* Hero title */
.hero-title {
    font-family: var(--font-sans);
    font-size: var(--text-hero);
    font-weight: 800;
    color: var(--color-heading);
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: var(--space-6);
    animation: evFadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
}

.hero-title em {
    font-style: italic;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-teal) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hero subtitle */
.hero-subtitle {
    font-family: var(--font-sans);
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 400;
    color: var(--color-muted);
    line-height: 1.7;
    max-width: 520px;
    margin-inline: auto;
    margin-bottom: var(--space-10);
    animation: evFadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

/* Hero CTA buttons */
.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    animation: evFadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

.hero-actions .btn-primary,
.hero-actions .btn-ghost {
    padding: 0.75rem 1.5rem;
    font-size: var(--text-base);
}

@keyframes evFadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --------------------------------------------------------------------------
   7. Posts Section
   -------------------------------------------------------------------------- */

.posts-section {
    padding-block: var(--space-16) var(--space-24);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    margin-bottom: var(--space-10);
}

.section-label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    white-space: nowrap;
}

.section-rule {
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

/* --------------------------------------------------------------------------
   8. Post Cards Grid
   -------------------------------------------------------------------------- */

.posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* --------------------------------------------------------------------------
   9. Post Card
   -------------------------------------------------------------------------- */

.post-card {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition:
        transform var(--transition-base),
        border-color var(--transition-base),
        box-shadow var(--transition-base);
    /* Initial state for fade-in animation */
    opacity: 0;
    transform: translateY(16px);
}

.post-card.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition:
        opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
        border-color var(--transition-base),
        box-shadow var(--transition-base);
}

.post-card:hover {
    transform: translateY(-3px);
    border-color: rgba(139, 111, 255, 0.3);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(139, 111, 255, 0.1);
}

.post-card-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

/* Top accent gradient bar */
.card-accent-bar {
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-teal) 100%);
    flex-shrink: 0;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.post-card:hover .card-accent-bar {
    opacity: 1;
}

/* Card image */
.card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    flex-shrink: 0;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

/* Card content */
.card-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: var(--space-6);
    gap: var(--space-3);
}

/* Tag chip */
.tag-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    color: var(--color-muted);
    text-decoration: none;
    transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.tag-pill:hover {
    color: var(--color-text);
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.08);
}

.tag-pill--accent {
    color: var(--color-accent);
    background: rgba(139, 111, 255, 0.1);
    border-color: rgba(139, 111, 255, 0.2);
}

.tag-pill--accent:hover {
    color: #b49fff;
    background: rgba(139, 111, 255, 0.15);
    border-color: rgba(139, 111, 255, 0.35);
}

.card-tag {
    display: flex;
    align-items: center;
}

/* Card title */
.card-title {
    font-family: var(--font-sans);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-heading);
    line-height: 1.3;
    letter-spacing: -0.02em;
    transition: color var(--transition-fast);
}

.post-card:hover .card-title {
    color: var(--color-white);
}

/* Card excerpt */
.card-excerpt {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--color-muted);
    line-height: 1.65;
    flex: 1;

    /* 2-line clamp */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card meta */
.card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--color-muted);
    letter-spacing: 0.04em;
    margin-top: auto;
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border-soft);
}

.card-meta-dot {
    opacity: 0.4;
}

/* --------------------------------------------------------------------------
   10. Pagination
   -------------------------------------------------------------------------- */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-16);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
}

.pagination a {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.5rem 1rem;
    color: var(--color-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), border-color var(--transition-fast);
    text-decoration: none;
}

.pagination a:hover {
    color: var(--color-heading);
    border-color: rgba(255, 255, 255, 0.15);
}

.pagination .page-number {
    color: var(--color-muted);
    letter-spacing: 0.06em;
}

/* --------------------------------------------------------------------------
   11. Single Post — Header
   -------------------------------------------------------------------------- */

.post-single {
    padding-bottom: var(--space-24);
}

.post-header {
    padding-block: clamp(3rem, 8vw, 6rem) var(--space-12);
    border-bottom: 1px solid var(--color-border);
}

.post-header-inner {
    max-width: var(--header-max);
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    text-align: center;
}

.post-tag-row {
    display: flex;
    justify-content: center;
}

.post-title {
    font-family: var(--font-sans);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--color-heading);
    letter-spacing: -0.035em;
    line-height: 1.1;
}

.post-excerpt {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    font-weight: 400;
    color: var(--color-muted);
    line-height: 1.7;
    font-style: italic;
}

.post-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.post-meta-dot {
    opacity: 0.4;
}

/* --------------------------------------------------------------------------
   12. Feature Image
   -------------------------------------------------------------------------- */

.post-feature-image {
    padding-block: var(--space-10);
}

.post-feature-figure {
    position: relative;
}

.post-feature-figure img {
    width: 100%;
    height: clamp(300px, 50vw, 520px);
    object-fit: cover;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.post-feature-caption {
    margin-top: var(--space-3);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-muted);
    text-align: center;
    letter-spacing: 0.04em;
}

/* --------------------------------------------------------------------------
   13. Article Content — gh-content
   -------------------------------------------------------------------------- */

.post-body {
    padding-top: var(--space-12);
}

.gh-content {
    max-width: var(--content-max);
    margin-inline: auto;
}

/* Typography */
.gh-content p {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    line-height: 1.85;
    color: var(--color-text);
    margin-bottom: var(--space-6);
}

.gh-content h2 {
    font-family: var(--font-sans);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-heading);
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-top: var(--space-16);
    margin-bottom: var(--space-6);
}

.gh-content h3 {
    font-family: var(--font-sans);
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--color-heading);
    letter-spacing: -0.025em;
    line-height: 1.25;
    margin-top: var(--space-12);
    margin-bottom: var(--space-4);
}

.gh-content h4 {
    font-family: var(--font-sans);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-heading);
    letter-spacing: -0.02em;
    margin-top: var(--space-10);
    margin-bottom: var(--space-3);
}

.gh-content h5,
.gh-content h6 {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

/* Links */
.gh-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-color: rgba(139, 111, 255, 0.4);
    text-underline-offset: 3px;
    transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}

.gh-content a:hover {
    color: #b49fff;
    text-decoration-color: rgba(180, 159, 255, 0.7);
}

/* Lists */
.gh-content ul,
.gh-content ol {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--space-6);
    padding-left: var(--space-6);
}

.gh-content ul {
    list-style: disc;
}

.gh-content ol {
    list-style: decimal;
}

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

.gh-content li::marker {
    color: var(--color-accent);
}

/* Blockquote */
.gh-content blockquote {
    position: relative;
    margin-block: var(--space-10);
    padding: var(--space-6) var(--space-8);
    background: var(--color-surface);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.gh-content blockquote p {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    font-style: italic;
    color: var(--color-heading);
    line-height: 1.7;
    margin-bottom: 0;
}

/* Code — inline */
.gh-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    color: var(--color-accent-teal);
    background: rgba(52, 212, 176, 0.08);
    border: 1px solid rgba(52, 212, 176, 0.15);
    border-radius: var(--radius-sm);
    padding: 0.15em 0.4em;
}

/* Code — block */
.gh-content pre {
    margin-block: var(--space-8);
    padding: var(--space-6);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

.gh-content pre code {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-text);
    background: transparent;
    border: none;
    padding: 0;
    line-height: 1.7;
}

/* Horizontal rule */
.gh-content hr {
    border: none;
    height: 1px;
    background: var(--color-border);
    margin-block: var(--space-12);
}

/* Images in content */
.gh-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    margin-block: var(--space-8);
}

/* Tables */
.gh-content table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    margin-block: var(--space-8);
}

.gh-content thead {
    border-bottom: 1px solid rgba(139, 111, 255, 0.3);
}

.gh-content th {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-size: var(--text-xs);
}

.gh-content td {
    padding: var(--space-3) var(--space-4);
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-soft);
}

.gh-content tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* --------------------------------------------------------------------------
   14. Ghost Koenig Card Styles
   -------------------------------------------------------------------------- */

.gh-content .kg-image-card {
    margin-block: var(--space-10);
}

.gh-content .kg-image-card img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    margin-block: 0;
}

.gh-content .kg-image-card figcaption {
    margin-top: var(--space-3);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-muted);
    text-align: center;
    letter-spacing: 0.04em;
}

/* Wide image */
.gh-content .kg-width-wide {
    position: relative;
    width: min(1000px, calc(100% + 6rem));
    margin-inline: calc(min(1000px, calc(100% + 6rem)) / -2 + 50%);
}

/* Full-width image */
.gh-content .kg-width-full {
    position: relative;
    width: 100vw;
    margin-inline: calc(50% - 50vw);
}

.gh-content .kg-width-full img {
    border-radius: 0;
    border-left: none;
    border-right: none;
}

/* Embed card */
.gh-content .kg-embed-card {
    margin-block: var(--space-10);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.gh-content .kg-embed-card iframe {
    display: block;
    width: 100%;
    border: none;
}

/* Gallery card */
.gh-content .kg-gallery-card {
    margin-block: var(--space-10);
}

.gh-content .kg-gallery-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.gh-content .kg-gallery-row {
    display: flex;
    gap: var(--space-2);
    width: 100%;
}

.gh-content .kg-gallery-image {
    flex: 1;
    overflow: hidden;
    border-radius: var(--radius-sm);
}

.gh-content .kg-gallery-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    margin-block: 0;
    border: none;
}

/* Callout card */
.gh-content .kg-callout-card {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-block: var(--space-8);
}

.gh-content .kg-callout-emoji {
    font-size: 1.5rem;
    flex-shrink: 0;
    line-height: 1.4;
}

.gh-content .kg-callout-text {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--color-text);
    line-height: 1.65;
}

/* Toggle card */
.gh-content .kg-toggle-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-block: var(--space-6);
    overflow: hidden;
}

.gh-content .kg-toggle-heading-text {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-heading);
}

/* Video card */
.gh-content .kg-video-card {
    margin-block: var(--space-10);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

/* Bookmark card */
.gh-content .kg-bookmark-card {
    margin-block: var(--space-8);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-surface);
    transition: border-color var(--transition-fast);
}

.gh-content .kg-bookmark-card:hover {
    border-color: rgba(139, 111, 255, 0.3);
}

.gh-content .kg-bookmark-container {
    display: flex;
    text-decoration: none;
    color: inherit;
}

.gh-content .kg-bookmark-content {
    flex: 1;
    padding: var(--space-5);
}

.gh-content .kg-bookmark-title {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-heading);
    margin-bottom: var(--space-2);
}

.gh-content .kg-bookmark-description {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--color-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.gh-content .kg-bookmark-metadata {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-3);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--color-muted);
}

.gh-content .kg-bookmark-icon {
    width: 16px;
    height: 16px;
    border-radius: 2px;
}

.gh-content .kg-bookmark-thumbnail {
    width: 140px;
    flex-shrink: 0;
}

.gh-content .kg-bookmark-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    border: none;
    margin-block: 0;
}

/* --------------------------------------------------------------------------
   15. Post Footer — Tags & Navigation
   -------------------------------------------------------------------------- */

.post-footer {
    margin-top: var(--space-20);
    padding-top: var(--space-10);
    border-top: 1px solid var(--color-border);
}

.post-tags {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-12);
    flex-wrap: wrap;
}

.post-tags-label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
}

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

/* Post navigation */
.post-nav {
    display: flex;
    gap: var(--space-4);
}

.post-nav-link {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-5);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.post-nav-link:hover {
    border-color: rgba(139, 111, 255, 0.3);
    background: var(--color-surface-2);
}

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

.post-nav-direction {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.post-nav-link--next .post-nav-direction {
    justify-content: flex-end;
}

.post-nav-title {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-heading);
    line-height: 1.4;

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* --------------------------------------------------------------------------
   16. Page (Static)
   -------------------------------------------------------------------------- */

.page-single {
    padding-bottom: var(--space-24);
}

.page-header {
    padding-block: clamp(3rem, 8vw, 6rem) var(--space-12);
    border-bottom: 1px solid var(--color-border);
}

.page-header-inner {
    max-width: var(--header-max);
    margin-inline: auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.page-title {
    font-family: var(--font-sans);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--color-heading);
    letter-spacing: -0.035em;
    line-height: 1.1;
}

.page-excerpt {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    color: var(--color-muted);
    line-height: 1.7;
    font-style: italic;
}

.page-feature-image {
    padding-block: var(--space-10);
}

.page-feature-image img {
    width: 100%;
    max-height: 480px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.page-body {
    padding-top: var(--space-12);
}

/* --------------------------------------------------------------------------
   17. Tag Archive
   -------------------------------------------------------------------------- */

.tag-archive {
    padding-bottom: var(--space-24);
}

.archive-header {
    padding-block: clamp(3rem, 8vw, 5rem) var(--space-10);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-16);
}

.archive-header-inner {
    max-width: var(--header-max);
    margin-inline: auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.archive-label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.archive-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    font-family: var(--font-sans);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--color-heading);
    letter-spacing: -0.03em;
}

.archive-tag-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.archive-description {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    color: var(--color-muted);
    line-height: 1.7;
    font-style: italic;
}

.archive-meta {
    display: flex;
    justify-content: center;
}

.archive-count {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-muted);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 0.25rem 0.75rem;
    letter-spacing: 0.06em;
}

/* --------------------------------------------------------------------------
   18. Error / 404 Page
   -------------------------------------------------------------------------- */

.error-page {
    padding-block: clamp(5rem, 15vw, 10rem);
}

.error-inner {
    max-width: 520px;
    margin-inline: auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-5);
}

.error-glyph {
    font-size: 3rem;
    color: var(--color-accent);
    opacity: 0.3;
    margin-bottom: var(--space-2);
}

.error-code {
    font-family: var(--font-mono);
    font-size: clamp(4rem, 12vw, 7rem);
    font-weight: 700;
    color: var(--color-heading);
    letter-spacing: -0.05em;
    line-height: 1;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-teal) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.error-title {
    font-family: var(--font-sans);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-heading);
    letter-spacing: -0.03em;
}

.error-message {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    color: var(--color-muted);
    line-height: 1.65;
    font-style: italic;
}

.error-actions {
    margin-top: var(--space-4);
}

/* --------------------------------------------------------------------------
   19. Footer
   -------------------------------------------------------------------------- */

.site-footer {
    margin-top: auto;
    border-top: 1px solid var(--color-border);
    padding-block: var(--space-10) var(--space-8);
}

.footer-inner {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-logo .logo-glyph {
    font-size: 1.2rem;
}

.footer-logo .logo-name {
    font-size: var(--text-base);
}

.footer-tagline {
    font-family: var(--font-serif);
    font-size: var(--text-sm);
    color: var(--color-muted);
    font-style: italic;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.footer-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-muted);
    letter-spacing: 0.06em;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-text);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-soft);
    flex-wrap: wrap;
}

.footer-credit {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-muted);
    letter-spacing: 0.04em;
}

.footer-credit a {
    color: var(--color-muted);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--transition-fast);
}

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

.footer-copy {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-muted);
    letter-spacing: 0.04em;
    opacity: 0.6;
}

/* --------------------------------------------------------------------------
   20. Fade-in Animation — JS-driven
   -------------------------------------------------------------------------- */

.fade-in-up {
    opacity: 0;
    transform: translateY(16px);
    transition:
        opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* --------------------------------------------------------------------------
   21. Responsive — 1024px
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .nav-center {
        display: none;
    }

    .nav-right {
        display: none;
    }

    .burger-btn {
        display: flex;
    }

    .mobile-menu {
        display: flex;
    }
}

/* --------------------------------------------------------------------------
   22. Responsive — 768px
   -------------------------------------------------------------------------- */

@media (max-width: 768px) {
    :root {
        --nav-height: 56px;
    }

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

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions .btn-primary,
    .hero-actions .btn-ghost {
        justify-content: center;
    }

    .gh-content .kg-width-wide {
        width: 100%;
        margin-inline: 0;
    }

    .post-nav {
        flex-direction: column;
    }

    .footer-inner {
        flex-direction: column;
        gap: var(--space-6);
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }

    .gh-content blockquote {
        padding: var(--space-5) var(--space-5);
        margin-inline: 0;
    }

    .post-feature-figure img {
        border-radius: var(--radius-md);
    }
}

/* --------------------------------------------------------------------------
   23. Responsive — 480px
   -------------------------------------------------------------------------- */

@media (max-width: 480px) {
    .hero-badge {
        font-size: 0.6rem;
    }

    .logo-name {
        font-size: var(--text-base);
    }

    .btn-subscribe {
        font-size: 0.7rem;
        padding: 0.4rem 0.75rem;
    }

    .card-content {
        padding: var(--space-5);
    }

    .error-glyph {
        font-size: 2rem;
    }

    .gh-content .kg-bookmark-thumbnail {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   24. Utilities & Misc
   -------------------------------------------------------------------------- */

/* Ghost portal triggers */
[data-portal] {
    cursor: pointer;
}

/* Selection */
::selection {
    background: rgba(139, 111, 255, 0.25);
    color: var(--color-heading);
}

/* Scrollbar (webkit) */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Focus ring */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Ghost member portal styles */
.gh-portal-popup-wrapper {
    font-family: var(--font-sans) !important;
}