/* ==========================================================================
   AI UNPACKING THEME - Main Stylesheet
   Swiss-Inspired Minimal Design System
   ========================================================================== */

/* ==========================================================================
   1. CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
    /* Colors */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-bg: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-tertiary: #f3f4f6;
    
    --color-text: #111827;
    --color-text-secondary: #4b5563;
    --color-text-muted: #6b7280;
    --color-text-light: #9ca3af;
    
    --color-primary: #0066cc;
    --color-primary-hover: #0052a3;
    --color-primary-light: #e0f2fe;
    
    --color-accent: #0066cc;
    --color-success: #059669;
    --color-warning: #d97706;
    --color-error: #dc2626;
    
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    
    /* Typography */
    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "JetBrains Mono", "Fira Code", "SF Mono", Monaco, "Andale Mono", monospace;
    
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-lg: 1.125rem;     /* 18px */
    --font-size-xl: 1.25rem;      /* 20px */
    --font-size-2xl: 1.5rem;      /* 24px */
    --font-size-3xl: 1.875rem;    /* 30px */
    --font-size-4xl: 2.25rem;     /* 36px */
    --font-size-5xl: 3rem;        /* 48px */
    --font-size-6xl: 3.75rem;     /* 60px */
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;
    
    --letter-spacing-tight: -0.025em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.025em;
    
    /* Spacing */
    --spacing-0: 0;
    --spacing-1: 0.25rem;   /* 4px */
    --spacing-2: 0.5rem;    /* 8px */
    --spacing-3: 0.75rem;   /* 12px */
    --spacing-4: 1rem;      /* 16px */
    --spacing-5: 1.25rem;   /* 20px */
    --spacing-6: 1.5rem;    /* 24px */
    --spacing-8: 2rem;      /* 32px */
    --spacing-10: 2.5rem;   /* 40px */
    --spacing-12: 3rem;     /* 48px */
    --spacing-16: 4rem;     /* 64px */
    --spacing-20: 5rem;     /* 80px */
    --spacing-24: 6rem;     /* 96px */
    --spacing-32: 8rem;     /* 128px */
    
    /* Layout */
    --container-max: 1200px;
    --container-narrow: 720px;
    --container-padding: var(--spacing-6);
    
    /* Borders */
    --border-width: 1px;
    --border-radius-sm: 0.25rem;
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-full: 9999px;
    
    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Transitions */
    --transition-fast: 150ms;
    --transition-base: 200ms;
    --transition-slow: 300ms;
    --transition-slower: 500ms;
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    
    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
}

/* ==========================================================================
   2. CSS Reset & Base Styles
   ========================================================================== */

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

* {
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-relaxed);
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: clip;
}

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

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

p, h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
}

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

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

ul, ol {
    list-style: none;
}

/* ==========================================================================
   3. Accessibility
   ========================================================================== */

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--spacing-4);
    z-index: 9999;
    padding: var(--spacing-3) var(--spacing-4);
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--border-radius);
    transition: top var(--transition-fast) var(--ease-out);
}

.skip-link:focus {
    top: var(--spacing-4);
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ==========================================================================
   4. Layout
   ========================================================================== */

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

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

.main {
    flex: 1;
}

/* ==========================================================================
   5. Typography
   ========================================================================== */

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

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

@media (min-width: 768px) {
    h1 { font-size: var(--font-size-5xl); }
    h2 { font-size: var(--font-size-4xl); }
    h3 { font-size: var(--font-size-3xl); }
}


/* ==========================================================================
   8. Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast) var(--ease-out);
    cursor: pointer;
}

.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn--primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn--secondary {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

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

.btn--outline {
    background-color: transparent;
    color: var(--color-text);
    border: var(--border-width) solid var(--color-border);
}

.btn--outline:hover {
    background-color: var(--color-bg-secondary);
    border-color: var(--color-text-muted);
}

.btn__icon {
    width: 16px;
    height: 16px;
}

/* ==========================================================================
   9. Section Styles
   ========================================================================== */

.section {
    padding: var(--spacing-16) 0;
}

.section--featured {
    background-color: var(--color-bg-secondary);
}

.section--reviews {
    background-color: var(--color-bg);
}

.section--categories {
    background-color: var(--color-bg-secondary);
}

.section__header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: var(--spacing-8);
}

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

.section__link {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    transition: color var(--transition-fast) var(--ease-out);
}

.section__link:hover {
    color: var(--color-primary-hover);
}

/* ==========================================================================
   10. Cards
   ========================================================================== */

.posts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

@media (min-width: 640px) {
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.posts-grid--compact {
    gap: var(--spacing-6);
}

@media (min-width: 640px) {
    .posts-grid--compact {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .posts-grid--compact {
        grid-template-columns: repeat(4, 1fr);
    }
}

.card {
    display: flex;
    flex-direction: column;
    background: var(--color-white);
    border-radius: 0;
    overflow: hidden;
    border: none;
    transition: none;
}

.card:hover {
    border: none;
    box-shadow: none;
    transform: none;
}

.card__image-link {
    display: block;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.3s ease;
}

.card:hover .card__image {
    opacity: 0.9;
    transform: none;
}

.card__body {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-5);
}

.card__categories {
    margin-bottom: var(--spacing-2);
}

.card__category {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

.card__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-snug);
    margin-bottom: var(--spacing-2);
}

.card__title a {
    color: var(--color-text);
    transition: color var(--transition-fast) var(--ease-out);
}

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

.card__excerpt {
    flex: 1;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-4);
}

.card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.card__date,
.card__reading-time {
    display: inline-flex;
    align-items: center;
}

/* Card Badges */
.card__badge {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-2);
}

.card__badge--review {
    background-color: #fef3c7;
    color: #d97706;
}

/* Card Header with Rating */
.card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-2);
}

.card__rating {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-warning);
}

.card__rating svg {
    color: var(--color-warning);
}

/* Featured Card */
.card--featured {
    grid-column: span 1;
}

@media (min-width: 1024px) {
    .featured-grid {
        display: grid;
        grid-template-columns: 2fr 1fr;
        grid-template-rows: repeat(2, 1fr);
        gap: var(--spacing-6);
    }
    
    .featured-grid .card--featured:first-child {
        grid-row: span 2;
    }
    
    .featured-grid .card--featured:first-child .card__title {
        font-size: var(--font-size-2xl);
    }
}

/* ==========================================================================
   11. Single Post Styles
   ========================================================================== */

.post-header,
.review-header,
.guide-header,
.about-header {
    padding: var(--spacing-12) 0;
    border-bottom: var(--border-width) solid var(--color-border-light);
}

.page-header {
    padding: var(--spacing-12) 0 var(--spacing-8);
}

.page-title,
.post-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-4);
}

@media (min-width: 768px) {
    .page-title,
    .post-title {
        font-size: var(--font-size-4xl);
    }
}

.page-description,
.post-excerpt {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-6);
}

.post-categories {
    margin-bottom: var(--spacing-4);
}

.category-tag {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    color: var(--color-primary);
    background-color: var(--color-primary-light);
    border-radius: var(--border-radius-full);
}

/* Post Meta */
.post-meta,
.meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.meta__separator {
    color: var(--color-border);
}

/* Hero Image */
.post-hero,
.review-hero,
.guide-hero {
    padding: var(--spacing-8) 0;
    background-color: var(--color-bg-secondary);
}

.post-hero__image,
.review-hero__image,
.guide-hero__image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: var(--border-radius-lg);
}

/* Post Body & Content */
.post-body {
    padding: var(--spacing-12) 0 var(--spacing-16);
}

.post-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
}

@media (min-width: 1024px) {
    .post-layout {
        grid-template-columns: 200px 1fr;
    }
}

/* Table of Contents */
.toc-sidebar {
    position: relative;
}

@media (min-width: 1024px) {
    .toc-sidebar {
        position: sticky;
        top: 100px;
        align-self: start;
    }
}

.toc {
    padding: var(--spacing-4);
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius);
    border: var(--border-width) solid var(--color-border-light);
}

.toc__title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-3);
}

.toc nav ul {
    font-size: var(--font-size-sm);
}

.toc nav ul li {
    margin-bottom: var(--spacing-2);
}

.toc nav ul li a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast) var(--ease-out);
}

.toc nav ul li a:hover {
    color: var(--color-primary);
}

.toc nav ul ul {
    margin-left: var(--spacing-4);
    margin-top: var(--spacing-2);
}

/* Post Content - Prose Styles */
.post-content {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
}

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

.post-content h2 {
    font-size: var(--font-size-2xl);
    margin-top: var(--spacing-12);
    margin-bottom: var(--spacing-4);
    padding-top: var(--spacing-4);
    border-top: var(--border-width) solid var(--color-border-light);
}

.post-content h3 {
    font-size: var(--font-size-xl);
    margin-top: var(--spacing-8);
    margin-bottom: var(--spacing-3);
}

.post-content h4 {
    font-size: var(--font-size-lg);
    margin-top: var(--spacing-6);
    margin-bottom: var(--spacing-2);
}

.post-content p {
    color: var(--color-text-secondary);
}

.post-content a {
    color: var(--color-primary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    transition: all var(--transition-fast) var(--ease-out);
}

.post-content a:hover {
    color: var(--color-primary-hover);
    text-decoration-thickness: 2px;
}

.post-content strong {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

.post-content em {
    font-style: italic;
}

.post-content ul,
.post-content ol {
    padding-left: var(--spacing-6);
    color: var(--color-text-secondary);
}

.post-content ul {
    list-style-type: disc;
}

.post-content ol {
    list-style-type: decimal;
}

.post-content li {
    margin-bottom: var(--spacing-2);
}

.post-content li::marker {
    color: var(--color-primary);
}

.post-content blockquote {
    padding: var(--spacing-4) var(--spacing-6);
    border-left: 4px solid var(--color-primary);
    background-color: var(--color-bg-secondary);
    font-style: italic;
    color: var(--color-text-secondary);
}

.post-content blockquote p {
    margin: 0;
}

.post-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    padding: 0.125em 0.375em;
    background-color: var(--color-bg-tertiary);
    border-radius: var(--border-radius-sm);
}

.post-content pre {
    padding: var(--spacing-4);
    background-color: #1f2937;
    border-radius: var(--border-radius);
    overflow-x: auto;
}

.post-content pre code {
    padding: 0;
    background: none;
    color: #e5e7eb;
    font-size: var(--font-size-sm);
}

.post-content img {
    border-radius: var(--border-radius);
    margin: var(--spacing-8) 0;
}

.post-content figure {
    margin: var(--spacing-8) 0;
}

.post-content figcaption {
    margin-top: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-align: center;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.post-content th,
.post-content td {
    padding: var(--spacing-3) var(--spacing-4);
    text-align: left;
    border-bottom: var(--border-width) solid var(--color-border);
}

.post-content th {
    font-weight: var(--font-weight-semibold);
    background-color: var(--color-bg-secondary);
}

.post-content hr {
    margin: var(--spacing-12) 0;
    border: none;
    border-top: var(--border-width) solid var(--color-border);
}

/* Post Footer */
.post-footer {
    margin-top: var(--spacing-12);
    padding-top: var(--spacing-8);
    border-top: var(--border-width) solid var(--color-border-light);
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-2);
}

.tags-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-muted);
    margin-right: var(--spacing-2);
}

.tag {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius-full);
    transition: all var(--transition-fast) var(--ease-out);
}

.tag:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

/* ==========================================================================
   12. Review-specific Styles
   ========================================================================== */

.review-badge,
.guide-badge {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    border-radius: var(--border-radius-full);
    margin-bottom: var(--spacing-4);
}

.review-badge {
    background-color: #fef3c7;
    color: #d97706;
}

.guide-badge {
    background-color: #d1fae5;
    color: #059669;
}

.review-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
}

.rating-value {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-text);
}

.rating-max {
    font-size: var(--font-size-xl);
    color: var(--color-text-muted);
}

.rating-stars {
    margin-left: var(--spacing-2);
}

.stars {
    display: flex;
    gap: var(--spacing-1);
}

.star {
    width: 20px;
    height: 20px;
}

.star--filled {
    color: #fbbf24;
}

/* Verdict Box */
.verdict-box {
    margin: var(--spacing-8) 0;
    padding: var(--spacing-6);
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    border: var(--border-width) solid var(--color-border-light);
}

.verdict-box__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-4);
}

.verdict-box__summary {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-6);
    border-bottom: var(--border-width) solid var(--color-border-light);
}

.verdict-box__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 640px) {
    .verdict-box__grid {
        grid-template-columns: 1fr 1fr;
    }
}

.verdict-box__heading {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-3);
}

.verdict-box__heading--pros {
    color: var(--color-success);
}

.verdict-box__heading--cons {
    color: var(--color-error);
}

.verdict-box__list {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.verdict-box__list li {
    margin-bottom: var(--spacing-2);
    padding-left: var(--spacing-4);
    position: relative;
}

.verdict-box__list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-text-muted);
}

/* Guide Meta */
.guide-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.guide-difficulty {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--border-radius-full);
}

.guide-difficulty--beginner {
    background-color: #d1fae5;
    color: #059669;
}

.guide-difficulty--intermediate {
    background-color: #fef3c7;
    color: #d97706;
}

.guide-difficulty--advanced {
    background-color: #fee2e2;
    color: #dc2626;
}

.guide-time {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ==========================================================================
   13. Related Posts
   ========================================================================== */

.related-posts {
    padding: var(--spacing-12) 0;
    background-color: var(--color-bg-secondary);
    border-top: var(--border-width) solid var(--color-border-light);
}

.related-posts__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-6);
}

.related-posts__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 640px) {
    .related-posts__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.related-card {
    display: flex;
    flex-direction: column;
    background: var(--color-white);
    border-radius: 0;
    overflow: hidden;
    border: none;
    transition: none;
}

.related-card:hover {
    border: none;
    box-shadow: none;
    transform: none;
}

.related-card__image-link {
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

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

.related-card__body {
    padding: var(--spacing-4);
}

.related-card__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-snug);
    margin-bottom: var(--spacing-2);
}

.related-card__title a {
    color: var(--color-text);
    transition: color var(--transition-fast) var(--ease-out);
}

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

.related-card__date {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* ==========================================================================
   14. Share Buttons
   ========================================================================== */

.share-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    margin-top: var(--spacing-8);
    padding-top: var(--spacing-8);
    border-top: var(--border-width) solid var(--color-border-light);
}

@media (min-width: 640px) {
    .share-buttons {
        flex-direction: row;
        align-items: center;
    }
}

.share-buttons__label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-muted);
}

.share-buttons__list {
    display: flex;
    gap: var(--spacing-2);
}

.share-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius);
    color: var(--color-text-secondary);
    background-color: var(--color-bg-secondary);
    transition: all var(--transition-fast) var(--ease-out);
}

.share-button:hover {
    color: var(--color-white);
}

.share-button--twitter:hover {
    background-color: #1da1f2;
}

.share-button--linkedin:hover {
    background-color: #0077b5;
}

.share-button--facebook:hover {
    background-color: #1877f2;
}

.share-button--copy:hover {
    background-color: var(--color-text);
}

/* ==========================================================================
   15. Newsletter Section
   ========================================================================== */

.newsletter {
    padding: var(--spacing-16) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: var(--color-white);
}

.newsletter__content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.newsletter__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-3);
    color: var(--color-white);
}

.newsletter__description {
    font-size: var(--font-size-base);
    opacity: 0.9;
    margin-bottom: var(--spacing-6);
}

.newsletter__form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.newsletter__input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

@media (min-width: 640px) {
    .newsletter__input-group {
        flex-direction: row;
    }
}

.newsletter__input {
    flex: 1;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    background-color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
}

.newsletter__input::placeholder {
    color: var(--color-text-muted);
}

.newsletter__input:focus {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
}

.newsletter__button {
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    background-color: var(--color-text);
    color: var(--color-white);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast) var(--ease-out);
    white-space: nowrap;
}

.newsletter__button:hover {
    background-color: var(--color-black);
    transform: translateY(-1px);
}

.newsletter__privacy {
    font-size: var(--font-size-xs);
    opacity: 0.8;
}

.newsletter__privacy a {
    text-decoration: underline;
}

.newsletter__privacy a:hover {
    opacity: 1;
}

/* ==========================================================================
   16. Categories Grid
   ========================================================================== */

.categories-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-4);
}

@media (min-width: 640px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.category-card {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-5);
    background-color: var(--color-white);
    border: none;
    border-radius: 0;
    transition: background-color 0.2s ease;
}

.category-card:hover {
    background-color: #F5F5F5;
    border: none;
    box-shadow: none;
    transform: none;
}

.category-card__name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--spacing-1);
}

.category-card__count {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ==========================================================================
   17. Pagination
   ========================================================================== */

.pagination {
    margin-top: var(--spacing-12);
    padding-top: var(--spacing-8);
    border-top: var(--border-width) solid var(--color-border-light);
}

.pagination__list {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
}

.pagination__link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast) var(--ease-out);
}

.pagination__link:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

.pagination__link--current {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.pagination__item--ellipsis span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    color: var(--color-text-muted);
}

.pagination__item--prev .pagination__link,
.pagination__item--next .pagination__link {
    gap: var(--spacing-2);
}

/* ==========================================================================
   18. Footer
   ========================================================================== */

.site-footer {
    background-color: var(--color-text);
    color: var(--color-white);
    padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-10);
    margin-bottom: var(--spacing-12);
}

@media (min-width: 768px) {
    .footer__grid {
        grid-template-columns: 2fr 3fr;
    }
}

.footer__brand {
    max-width: 300px;
}

.footer__logo {
    display: inline-block;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
    margin-bottom: var(--spacing-4);
}

.footer__tagline {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-6);
}

.footer__social {
    display: flex;
    gap: var(--spacing-3);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    color: var(--color-white);
    transition: all var(--transition-fast) var(--ease-out);
}

.social-link:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

.footer__nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-8);
}

@media (min-width: 640px) {
    .footer__nav {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer__heading {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: var(--spacing-4);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.footer__links a {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast) var(--ease-out);
}

.footer__links a:hover {
    color: var(--color-white);
}

.footer__bottom {
    padding-top: var(--spacing-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copyright {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
}

/* ==========================================================================
   19. List Page Styles
   ========================================================================== */

.list-page .page-header {
    background-color: var(--color-bg-secondary);
    border-bottom: var(--border-width) solid var(--color-border-light);
}

.list-page .page-content {
    margin-top: var(--spacing-4);
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.posts-section {
    padding: var(--spacing-12) 0 var(--spacing-16);
}

.no-posts {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    padding: var(--spacing-16) 0;
}

/* ==========================================================================
   20. Utility Classes
   ========================================================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--spacing-4); }
.mt-8 { margin-top: var(--spacing-8); }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-8 { margin-bottom: var(--spacing-8); }

.hidden { display: none; }

@media (max-width: 639px) {
    .sm\:hidden { display: none; }
}

@media (min-width: 640px) {
    .sm\:block { display: block; }
}

/* Add to main.css */

/* ==========================================================================
   21. Reading Progress Bar
   ========================================================================== */

.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    z-index: 9999;
    background-color: transparent;
}

.reading-progress__bar {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    transition: width 100ms linear;
}

/* ==========================================================================
   22. Author Card
   ========================================================================== */

.author-card {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    box-sizing: border-box;
}

.author-card__avatar {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    min-width: 60px;
    background: linear-gradient(135deg, #0066cc 0%, #0052a3 100%);
    border-radius: 50%;
    color: #ffffff;
    flex-shrink: 0;
}

.author-card__avatar svg {
    width: 32px;
    height: 32px;
}

.author-card__info {
    flex: 1 1 200px;
    min-width: 0;
}

.author-card__label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.author-card__name {
    display: block;
    font-size: 1.125rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.25rem;
}

.author-card__bio {
    display: block;
    font-size: 0.875rem;
    color: #4b5563;
}

.author-card__meta {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-left: auto;
}

@media (max-width: 768px) {
    .author-card {
        flex-direction: column !important;
        align-items: flex-start;
    }
    
    .author-card__meta {
        margin-left: 0;
        width: 100%;
    }
}

.author-card__stat {
    display: inline-flex !important;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #6b7280;
    padding: 0.5rem 0.75rem;
    background-color: #ffffff;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    white-space: nowrap;
}

.author-card__stat svg {
    color: #0066cc;
    flex-shrink: 0;
}

/* ==========================================================================
   23. Swiss AI Summary Box
   ========================================================================== */

.swiss-ai-summary {
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    background-color: var(--swiss-off-white, #F5F5F0);
    border: 2px solid var(--swiss-black, #111111);
}

.swiss-ai-summary__header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.swiss-ai-summary__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--swiss-black, #111111);
    color: #fff;
    flex-shrink: 0;
}

.swiss-ai-summary__text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.swiss-ai-summary__label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--swiss-red, #FF3B30);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.swiss-ai-summary__desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.swiss-ai-summary__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

@media (min-width: 640px) {
    .swiss-ai-summary__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.swiss-ai-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--swiss-black, #111111);
    background-color: #ffffff;
    border: 2px solid var(--swiss-black, #111111);
    text-decoration: none;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.swiss-ai-btn__logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.swiss-ai-btn__name {
    flex: 1;
    font-weight: 600;
}

.swiss-ai-btn__arrow {
    font-size: 1.125rem;
    opacity: 0;
    transform: translateX(-8px);
    transition: all 0.2s ease;
}

.swiss-ai-btn:hover {
    background-color: var(--swiss-black, #111111);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 4px 4px 0 rgba(0,0,0,0.2);
}

.swiss-ai-btn:hover .swiss-ai-btn__arrow {
    opacity: 1;
    transform: translateX(0);
}

.swiss-ai-btn:hover .swiss-ai-btn__logo {
    transform: scale(1.1);
}

/* AI Brand Colors */
.swiss-ai-btn--chatgpt:hover {
    background-color: #10a37f;
    border-color: #10a37f;
}

.swiss-ai-btn--claude:hover {
    background-color: #d97757;
    border-color: #d97757;
}

.swiss-ai-btn--gemini:hover {
    background: linear-gradient(135deg, #4285f4, #ea4335, #fbbc05, #34a853);
    border-color: #4285f4;
}

.swiss-ai-btn--perplexity:hover {
    background-color: #20808d;
    border-color: #20808d;
}

.swiss-ai-summary__footer {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.swiss-ai-summary__tip {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* Mobile adjustments for AI Summary */
@media (max-width: 480px) {
    .swiss-ai-summary {
        padding: 1rem;
    }

    .swiss-ai-summary__header {
        flex-direction: column;
        gap: 0.75rem;
    }

    .swiss-ai-summary__icon {
        width: 40px;
        height: 40px;
    }

    .swiss-ai-btn {
        padding: 0.875rem;
        gap: 0.5rem;
    }

    .swiss-ai-btn__logo {
        width: 24px;
        height: 24px;
    }

    .swiss-ai-btn__name {
        font-size: 0.8125rem;
    }
}

/* ==========================================================================
   24. Swiss Table of Contents - FIXED VERSION
   ========================================================================== */

/* Reading Progress Bar */
.reading-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--swiss-red, #FF3B30) 0%, #ff6b5b 100%);
    z-index: 9999;
    transition: width 0.1s ease-out;
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(255, 59, 48, 0.3);
}

/* Reading Info in Header */
.reading-progress-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.reading-progress-info__item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #666;
}

.reading-progress-info__item svg {
    color: var(--swiss-red, #FF3B30);
    flex-shrink: 0;
}

/* ==========================================================================
   25. Swiss Post Page Layout - Enhanced
   ========================================================================== */

.single-post {
    width: 100%;
}

.swiss-page-header--single {
    padding: var(--spacing-12) 0;
}

.swiss-page-header--single::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--swiss-red) 50%, transparent 100%);
    opacity: 0.3;
}

/* Reading Info in Header */
.reading-progress-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0,0,0,0.1);
}

.reading-progress-info__item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.reading-progress-info__item svg {
    color: var(--swiss-red, #FF3B30);
    flex-shrink: 0;
}

/* ==========================================================================
   Desktop TOC Sidebar - Sticky on Scroll
   ========================================================================== */

.swiss-toc-sidebar {
    display: none;
}

@media (min-width: 1024px) {
    .swiss-toc-sidebar {
        display: block;
        width: 280px;
        min-width: 280px;
        max-width: 280px;
        flex-shrink: 0;
    }
}

.swiss-toc-sticky {
    position: -webkit-sticky;
    position: sticky;
    top: 100px;
    max-height: calc(100vh - 120px);
    overflow: hidden;
}

.swiss-toc {
    padding: 1.25rem;
    background-color: var(--swiss-off-white, #F5F5F0);
    border: 2px solid var(--swiss-black, #111111);
    border-radius: 4px;
}

.swiss-toc__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.swiss-toc__label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--swiss-red, #FF3B30);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.swiss-toc__toggle {
    display: none;
}

.swiss-toc__progress {
    height: 3px;
    background-color: rgba(0,0,0,0.1);
    margin-bottom: 1rem;
    overflow: hidden;
    border-radius: 2px;
}

.swiss-toc__progress-bar {
    height: 100%;
    width: 0;
    background-color: var(--swiss-red, #FF3B30);
    transition: width 0.15s ease-out;
    border-radius: 2px;
}

.swiss-toc__content {
    font-size: 0.8125rem;
    max-height: calc(100vh - 380px);
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: #ccc transparent;
}

.swiss-toc__content::-webkit-scrollbar {
    width: 4px;
}

.swiss-toc__content::-webkit-scrollbar-track {
    background: transparent;
}

.swiss-toc__content::-webkit-scrollbar-thumb {
    background-color: #ccc;
    border-radius: 2px;
}

.swiss-toc__content #TableOfContents,
.swiss-toc__content nav {
    margin: 0;
    padding: 0;
}

.swiss-toc__content #TableOfContents > ul,
.swiss-toc__content nav > ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

.swiss-toc__content #TableOfContents ul,
.swiss-toc__content nav ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

.swiss-toc__content #TableOfContents li,
.swiss-toc__content nav li {
    margin-bottom: 0.125rem;
}

.swiss-toc__content #TableOfContents a,
.swiss-toc__content nav a {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--color-text-secondary, #666);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: all 0.15s ease;
    font-size: 0.8125rem;
    line-height: 1.4;
    word-wrap: break-word;
    overflow-wrap: break-word;
    border-radius: 0 4px 4px 0;
}

.swiss-toc__content #TableOfContents a:hover,
.swiss-toc__content nav a:hover {
    color: var(--swiss-black, #111111);
    background-color: rgba(0,0,0,0.03);
    border-left-color: var(--color-text-muted, #999);
}

.swiss-toc__content #TableOfContents a.active,
.swiss-toc__content #TableOfContents a.swiss-toc__link--active,
.swiss-toc__content nav a.active,
.swiss-toc__content nav a.swiss-toc__link--active {
    color: var(--swiss-red, #FF3B30);
    font-weight: 600;
    border-left-color: var(--swiss-red, #FF3B30);
    background-color: rgba(255, 59, 48, 0.05);
}

.swiss-toc__content #TableOfContents ul ul,
.swiss-toc__content nav ul ul {
    margin-left: 0;
    padding-left: 0.75rem;
}

.swiss-toc__content #TableOfContents ul ul a,
.swiss-toc__content nav ul ul a {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    color: var(--color-text-muted, #888);
}

/* Also support nav > ul structure */
.swiss-toc__content nav > ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

.swiss-toc__content nav ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

.swiss-toc__content nav ul li {
    margin-bottom: 0.125rem;
}

.swiss-toc__content nav ul li a {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--color-text-secondary, #666);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: all 0.15s ease;
    font-size: 0.8125rem;
    line-height: 1.4;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.swiss-toc__content nav ul li a:hover {
    color: var(--swiss-black, #111111);
    background-color: rgba(0,0,0,0.03);
    border-left-color: var(--color-text-muted, #999);
}

.swiss-toc__content nav ul li a.active,
.swiss-toc__content nav ul li a.swiss-toc__link--active {
    color: var(--swiss-red, #FF3B30);
    font-weight: 600;
    border-left-color: var(--swiss-red, #FF3B30);
    background-color: rgba(255, 59, 48, 0.05);
}

.swiss-toc__content nav ul ul {
    margin-left: 0;
    padding-left: 0.75rem;
}

.swiss-toc__content nav ul ul li a {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    color: var(--color-text-muted, #888);
}

/* TOC Quick Actions - Swiss Style */
.swiss-toc-actions {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: 1rem;
    border: 2px solid var(--swiss-black, #111111);
    background-color: #fff;
}

.swiss-toc-action {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--swiss-black);
    background: none;
    border: none;
    border-bottom: 1px solid rgba(0,0,0,0.1);
    text-align: left;
    cursor: pointer;
    transition: all 0.15s ease;
}

.swiss-toc-action:last-child {
    border-bottom: none;
}

.swiss-toc-action:hover {
    background-color: var(--swiss-black);
    color: #fff;
}

.swiss-toc-action svg {
    flex-shrink: 0;
}

/* ==========================================================================
   Mobile Table of Contents - Collapsible
   ========================================================================== */

.swiss-toc-mobile {
    display: block;
    margin-bottom: 2rem;
    border: 2px solid var(--swiss-black, #111111);
    background-color: var(--swiss-off-white, #F5F5F0);
    overflow: hidden;
    border-radius: 4px;
}

@media (min-width: 1024px) {
    .swiss-toc-mobile {
        display: none;
    }
}

.swiss-toc-mobile__trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 1rem 1.25rem;
    background: none;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.swiss-toc-mobile__trigger:hover {
    background-color: rgba(0,0,0,0.03);
}

.swiss-toc-mobile__trigger.is-open {
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.swiss-toc-mobile__label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--swiss-black);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.swiss-toc-mobile__label svg {
    flex-shrink: 0;
}

.swiss-toc-mobile__chevron {
    transition: transform 0.3s ease;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.swiss-toc-mobile__trigger.is-open .swiss-toc-mobile__chevron {
    transform: rotate(180deg);
}

.swiss-toc-mobile__content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.swiss-toc-mobile__content.is-open {
    max-height: 60vh;
    overflow-y: auto;
}

.swiss-toc-mobile__content #TableOfContents,
.swiss-toc-mobile__content nav {
    padding: 0.75rem 1.25rem 1.25rem;
}

.swiss-toc-mobile__content #TableOfContents > ul,
.swiss-toc-mobile__content nav > ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

.swiss-toc-mobile__content #TableOfContents ul,
.swiss-toc-mobile__content nav ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

.swiss-toc-mobile__content #TableOfContents li,
.swiss-toc-mobile__content nav ul li {
    margin-bottom: 0.25rem;
}

.swiss-toc-mobile__content #TableOfContents a,
.swiss-toc-mobile__content nav ul li a {
    display: block;
    padding: 0.625rem 0.75rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: all 0.15s ease;
    word-wrap: break-word;
    overflow-wrap: break-word;
    border-radius: 0 4px 4px 0;
}

.swiss-toc-mobile__content #TableOfContents a:hover,
.swiss-toc-mobile__content #TableOfContents a.active,
.swiss-toc-mobile__content #TableOfContents a.swiss-toc__link--active,
.swiss-toc-mobile__content nav ul li a:hover,
.swiss-toc-mobile__content nav ul li a.swiss-toc__link--active {
    color: var(--swiss-red);
    border-left-color: var(--swiss-red);
    background-color: rgba(255, 59, 48, 0.05);
}

.swiss-toc-mobile__content #TableOfContents ul ul,
.swiss-toc-mobile__content nav ul ul {
    margin-left: 0.75rem;
    padding-left: 0.75rem;
    border-left: 1px solid rgba(0,0,0,0.1);
}

.swiss-toc-mobile__content #TableOfContents ul ul a,
.swiss-toc-mobile__content nav ul ul li a {
    font-size: 0.8125rem;
    padding: 0.5rem 0.75rem;
}

/* ==========================================================================
   Author Box - Swiss Style
   ========================================================================== */

.swiss-author-box {
    margin-top: 3rem;
    padding: 1.5rem;
    background-color: var(--swiss-off-white, #F5F5F0);
    border: 2px solid var(--swiss-black, #111111);
}

.swiss-author-box__header {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--swiss-red, #FF3B30);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.swiss-author-box__content {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.swiss-author-box__avatar {
    width: 72px;
    height: 72px;
    flex-shrink: 0;
    border: 2px solid var(--swiss-black);
    overflow: hidden;
}

.swiss-author-box__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.swiss-author-box__info {
    flex: 1;
}

.swiss-author-box__name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--swiss-black);
    margin-bottom: 0.5rem;
}

.swiss-author-box__bio {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.swiss-author-box__social {
    display: flex;
    gap: 0.5rem;
}

.swiss-author-social {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--swiss-black);
    border: 2px solid var(--swiss-black);
    transition: all 0.2s ease;
}

.swiss-author-social:hover {
    background-color: var(--swiss-black);
    color: #fff;
}

@media (max-width: 480px) {
    .swiss-author-box__content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .swiss-author-box__social {
        justify-content: center;
    }
}

/* ==========================================================================
   25. Swiss Article Actions
   ========================================================================== */

.swiss-article-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--swiss-black, #111111);
}

.swiss-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.875rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--swiss-black, #111111);
    background-color: transparent;
    border: 2px solid var(--swiss-black, #111111);
    cursor: pointer;
    transition: all 0.2s ease;
}

.swiss-action-btn:hover {
    background-color: var(--swiss-black, #111111);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 4px 4px 0 rgba(0,0,0,0.15);
}

.swiss-action-btn:active {
    transform: translateY(0);
    box-shadow: none;
}

.swiss-action-btn__icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.swiss-action-btn__icon svg {
    transition: transform 0.2s ease;
}

.swiss-action-btn:hover .swiss-action-btn__icon svg {
    transform: scale(1.1);
}

@media (max-width: 640px) {
    .swiss-article-actions {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }

    .swiss-action-btn {
        justify-content: center;
        padding: 0.75rem 1rem;
        font-size: 0.8125rem;
    }
}

.article-actions__group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-3);
    justify-content: center;
}

.article-action-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    background-color: var(--color-bg-secondary);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: all var(--transition-fast) var(--ease-out);
}

/* ==========================================================================
   26. Swiss Post Layout - FIXED VERSION
   ========================================================================== */

.swiss-post-body {
    padding: 3rem 0 5rem;
    overflow-x: hidden;
}

@media (max-width: 767px) {
    .swiss-post-body {
        padding: 2rem 0 3rem;
    }
}

.swiss-post-layout {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    width: 100%;
    max-width: 100%;
    overflow: visible;
}

@media (min-width: 1024px) {
    .swiss-post-layout {
        display: flex;
        flex-direction: row;
        gap: 3rem;
        align-items: flex-start;
    }
}

.swiss-post-content {
    flex: 1;
    min-width: 0;
    max-width: 100%;
    font-size: 1.0625rem;
    line-height: 1.8;
    order: 2;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
    color: #374151;
}

@media (min-width: 1024px) {
    .swiss-post-content {
        order: unset;
        max-width: 680px;
    }
}

@media (max-width: 767px) {
    .swiss-post-content {
        font-size: 1rem;
        line-height: 1.75;
    }
}

.swiss-post-content > * + * {
    margin-top: 1.25rem;
}

.swiss-post-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 0.875rem;
    padding-top: 0;
    scroll-margin-top: 100px;
    color: #111111;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.swiss-post-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.625rem;
    scroll-margin-top: 100px;
    color: #111111;
    letter-spacing: -0.01em;
    line-height: 1.35;
}

.swiss-post-content h4 {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    scroll-margin-top: 100px;
    color: #111111;
}

.swiss-post-content p {
    color: #374151;
    margin-bottom: 0;
}

.swiss-post-content a {
    color: #FF3B30;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 59, 48, 0.3);
    transition: border-color 0.15s ease;
}

.swiss-post-content a:hover {
    border-bottom-color: #FF3B30;
}

.swiss-post-content strong {
    font-weight: 600;
    color: #111111;
}

.swiss-post-content ul,
.swiss-post-content ol {
    padding-left: 1.25rem;
    color: #374151;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.swiss-post-content ul {
    list-style-type: none;
}

.swiss-post-content ol {
    list-style-type: decimal;
}

.swiss-post-content li {
    margin-bottom: 0.5rem;
    padding-left: 0.75rem;
    position: relative;
}

.swiss-post-content ul > li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.625rem;
    width: 5px;
    height: 5px;
    background-color: #FF3B30;
}

.swiss-post-content ol > li::marker {
    color: #FF3B30;
    font-weight: 600;
}

.swiss-post-content blockquote {
    padding: 1.25rem 1.5rem;
    margin: 1.75rem 0;
    border-left: 3px solid #111111;
    background-color: #FAFAFA;
    font-style: normal;
    color: #4B5563;
}

.swiss-post-content blockquote p {
    margin: 0;
    font-size: 1rem;
    font-style: italic;
}

.swiss-post-content code {
    font-family: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
    font-size: 0.85em;
    padding: 0.15em 0.35em;
    background-color: #F3F4F6;
    border: none;
    color: #DC2626;
}

.swiss-post-content pre {
    padding: 1.25rem;
    margin: 1.5rem 0;
    background-color: #1F2937;
    border: none;
    overflow-x: auto;
    max-width: 100%;
}

.swiss-post-content pre code {
    padding: 0;
    background: none;
    border: none;
    color: #E5E7EB;
    font-size: 0.8125rem;
    white-space: pre;
    word-break: normal;
    line-height: 1.6;
}

.swiss-post-content img {
    margin: 1.75rem 0;
    border: none;
    max-width: 100%;
    height: auto;
}

.swiss-post-content hr {
    margin: 2.5rem 0;
    border: none;
    border-top: 1px solid #E5E7EB;
}

/* Tables in post content */
.swiss-post-content table {
    width: 100%;
    margin: 1.5rem 0;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.swiss-post-content th,
.swiss-post-content td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid #E5E7EB;
}

.swiss-post-content th {
    font-weight: 600;
    color: #111111;
    background-color: #FAFAFA;
}

.swiss-post-content td {
    color: #374151;
}

/* Definition lists */
.swiss-post-content dl {
    margin: 1.5rem 0;
}

.swiss-post-content dt {
    font-weight: 600;
    color: #111111;
    margin-top: 1rem;
}

.swiss-post-content dd {
    margin-left: 1.5rem;
    color: #4B5563;
}

/* ==========================================================================
   27. Swiss Post Footer & Tags
   ========================================================================== */

.swiss-post-footer {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #E5E7EB;
}

.swiss-post-footer__label {
    display: block;
    margin-bottom: 1rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--swiss-red, #FF3B30);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.swiss-post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.swiss-post-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--swiss-black, #111111);
    background-color: transparent;
    border: 2px solid var(--swiss-black, #111111);
    text-decoration: none;
    transition: all 0.15s ease;
}

.swiss-post-tag:hover {
    background-color: var(--swiss-black, #111111);
    color: #ffffff;
}

/* ==========================================================================
   28. Guide Learnings Box
   ========================================================================== */

.swiss-learnings-box {
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    background-color: #e8f5e9;
    border: 2px solid #2e7d32;
}

.swiss-learnings-box__header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(46, 125, 50, 0.2);
    font-weight: 700;
    color: #2e7d32;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.swiss-learnings-box__header svg {
    color: #2e7d32;
}

.swiss-learnings-box__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.swiss-learnings-box__list li {
    position: relative;
    padding: 0.5rem 0 0.5rem 1.75rem;
    font-size: 0.9375rem;
    color: #1b5e20;
}

.swiss-learnings-box__list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #2e7d32;
    font-weight: 700;
}

/* ==========================================================================
   29. Review Verdict Box Enhancements
   ========================================================================== */

.swiss-verdict-box {
    margin: 2rem 0;
    padding: 1.5rem;
    background-color: var(--swiss-off-white, #F5F5F0);
    border: 2px solid var(--swiss-black, #111111);
}

.swiss-verdict-box__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.swiss-verdict-box__title-wrap {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.swiss-verdict-box__title {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--swiss-black);
}

.swiss-verdict-box__rating {
    display: flex;
    align-items: baseline;
    padding: 0.5rem 1rem;
    background-color: var(--swiss-black);
    color: #fff;
}

.swiss-verdict-box__rating-value {
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1;
}

.swiss-verdict-box__rating-max {
    font-size: 0.875rem;
    opacity: 0.7;
}

.swiss-verdict-box__summary {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 1.25rem;
}

.swiss-verdict-box__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .swiss-verdict-box__grid {
        grid-template-columns: 1fr 1fr;
    }
}

.swiss-verdict-box__pros,
.swiss-verdict-box__cons {
    padding: 1rem;
    background-color: #fff;
    border: 1px solid rgba(0,0,0,0.1);
}

.swiss-verdict-box__heading {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid;
}

.swiss-verdict-box__heading--pros {
    color: #2e7d32;
    border-bottom-color: #2e7d32;
}

.swiss-verdict-box__heading--cons {
    color: #c62828;
    border-bottom-color: #c62828;
}

.swiss-verdict-box__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.swiss-verdict-box__list li {
    position: relative;
    padding: 0.375rem 0;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.swiss-verdict-box__pricing {
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.swiss-verdict-box__pricing-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.swiss-verdict-box__pricing-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--swiss-black);
}

/* ==========================================================================
   30. Reading Progress Bar (Fixed)
   ========================================================================== */

.reading-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--swiss-red, #FF3B30) 0%, #ff6b5b 100%);
    z-index: 9999;
    transition: width 0.1s ease-out;
}

.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.1);
}

.reading-progress__bar {
    height: 100%;
    width: 0;
    background-color: var(--swiss-red, #FF3B30);
    transition: width 100ms ease-out;
}

/* Print styles */
@media print {
    .swiss-toc-sidebar,
    .swiss-toc-mobile,
    .swiss-ai-summary,
    .swiss-article-actions,
    .reading-progress,
    .reading-progress-bar {
        display: none !important;
    }
    
    .swiss-post-content {
        max-width: 100%;
    }
}