/* ============================================
   XLITH THEME - MODERN CSS ARCHITECTURE
   ============================================ */

:root {
  /* ============================================
     COLOR SYSTEM
     ============================================ */

  /* Brand Colors - Primary Palette */
  --color-mint: #6fdcbf;
  --color-mint-dark: #2d7a67;
  --color-mint-light: rgba(111, 220, 191, 0.15);

  --color-lilac: #ae8fdb;
  --color-lilac-dark: #5e3d8f;
  --color-lilac-light: rgba(174, 143, 219, 0.15);

  --color-sea: #72cada;
  --color-sea-dark: #2d6c7a;
  --color-sea-light: rgba(114, 202, 218, 0.15);

  --color-peach: #f2c3c0;
  --color-peach-dark: #a05855;
  --color-peach-light: rgba(242, 195, 192, 0.15);

  --color-rose: #dc849b;
  --color-rose-dark: #8f3d52;
  --color-rose-light: rgba(220, 132, 155, 0.15);

  /* Accent Colors */
  --color-pink: #eb4888;
  --color-pink-dark: #a02d5c;
  --color-pink-light: rgba(235, 72, 136, 0.15);

  --color-green: #24d05a;
  --color-green-dark: #1a7a3e;
  --color-green-light: rgba(36, 208, 90, 0.15);

  --color-blue: #10a2f5;
  --color-blue-dark: #0d5e9e;
  --color-blue-light: rgba(16, 162, 245, 0.15);

  --color-yellow: #e9bc3f;
  --color-yellow-dark: #8f6d1f;
  --color-yellow-light: rgba(233, 188, 63, 0.15);

  --color-sherbet: #fef8b4;

  /* Neutral Colors */
  --color-text-primary: #404040;
  --color-text-secondary: #555;
  --color-text-tertiary: #666;
  --color-text-muted: #888;
  --color-text-disabled: #999;
  --color-text-inverse: #ffffff;

  --color-bg-primary: #f5f3f0;
  --color-bg-secondary: #faf8f5;
  --color-bg-tertiary: #e8e5e1;
  --color-bg-code-inline: #f0ede8;
  --color-bg-code-block: #1e1e1e;
  --color-bg-blockquote: #f7f5f2;

  --color-border-light: #ccc;
  --color-border-medium: #ddd;

  /* Semantic Colors */
  --color-primary: var(--color-mint);
  --color-primary-dark: var(--color-mint-dark);
  --color-primary-light: var(--color-mint-light);

  /* Code Syntax Highlighting (Accessible) */
  --color-syntax-bg: #1e1e1e;
  --color-syntax-text: #e0e0e0;
  --color-syntax-keyword: #7ec4ff;
  --color-syntax-function: #a3d9a5;
  --color-syntax-string: #f0c674;
  --color-syntax-number: #e6b673;
  --color-syntax-comment: #999999;
  --color-syntax-inline: #e83e8c;

  /* ============================================
     TYPOGRAPHY SYSTEM
     ============================================ */

  /* Font Families */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;

  /* Font Sizes - Fluid Typography */
  --font-size-xs: 0.6875rem;      /* 11px */
  --font-size-sm: 0.75rem;        /* 12px */
  --font-size-base: 0.875rem;     /* 14px */
  --font-size-md: 0.9rem;         /* 14.4px */
  --font-size-lg: 0.9375rem;      /* 15px */
  --font-size-body: 1rem;         /* 16px */
  --font-size-body-lg: 1.0625rem; /* 17px */
  --font-size-xl: 1.1rem;         /* 17.6px */
  --font-size-2xl: 1.2rem;        /* 19.2px */
  --font-size-3xl: 1.25rem;       /* 20px */
  --font-size-4xl: 1.5rem;        /* 24px */
  --font-size-5xl: 1.75rem;       /* 28px */
  --font-size-6xl: 1.875rem;      /* 30px */
  --font-size-7xl: 2rem;          /* 32px */
  --font-size-8xl: 2.5rem;        /* 40px */
  --font-size-9xl: 3.5rem;        /* 56px */

  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Line Heights */
  --line-height-tight: 1.1;
  --line-height-snug: 1.2;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.7;
  --line-height-loose: 1.75;
  --line-height-extra-loose: 1.8;

  /* Letter Spacing */
  --letter-spacing-tight: -0.02em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.03em;
  --letter-spacing-wider: 0.05em;
  --letter-spacing-widest: 1px;

  /* ============================================
     SPACING SYSTEM
     ============================================ */

  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.65rem;   /* 10.4px */
  --space-4: 0.75rem;   /* 12px */
  --space-5: 0.875rem;  /* 14px */
  --space-6: 1rem;      /* 16px */
  --space-7: 1.25rem;   /* 20px */
  --space-8: 1.5rem;    /* 24px */
  --space-9: 1.75rem;   /* 28px */
  --space-10: 2rem;     /* 32px */
  --space-12: 2.5rem;   /* 40px */
  --space-14: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */

  /* ============================================
     SIZING SYSTEM
     ============================================ */

  /* Container Sizes */
  --container-max-width: 720px;
  --container-wide-max-width: 1200px;

  /* Component Sizes */
  --size-icon-sm: 16px;
  --size-icon-md: 20px;
  --size-icon-base: 24px;
  --size-icon-lg: 48px;
  --size-icon-xl: 56px;

  --size-profile-sm: 150px;
  --size-profile-base: 180px;
  --size-profile-lg: 200px;
  --size-profile-xl: 240px;

  --size-sidebar: 280px;
  --size-sidebar-md: 350px;

  /* ============================================
     BORDER SYSTEM
     ============================================ */

  --border-width-thin: 1px;
  --border-width-base: 2px;
  --border-width-thick: 3px;
  --border-width-heavy: 4px;

  --border-radius-sm: 3px;
  --border-radius-base: 4px;
  --border-radius-md: 6px;
  --border-radius-lg: 8px;
  --border-radius-xl: 12px;
  --border-radius-2xl: 16px;
  --border-radius-3xl: 20px;
  --border-radius-round: 50%;
  --border-radius-pill: 10px;

  /* ============================================
     SHADOW SYSTEM
     ============================================ */

  --shadow-xs: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-base: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 6px 16px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 8px 30px rgba(0, 0, 0, 0.15);
  --shadow-3xl: 0 12px 32px rgba(0, 0, 0, 0.15);
  --shadow-mint: 0 4px 16px rgba(111, 220, 191, 0.4);
  --shadow-mint-lg: 0 6px 20px rgba(111, 220, 191, 0.5);
  --shadow-sidebar: 2px 0 16px rgba(0, 0, 0, 0.2);

  /* ============================================
     TRANSITION SYSTEM
     ============================================ */

  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;
  --transition-slower: 0.6s ease;

  /* ============================================
     Z-INDEX SYSTEM
     ============================================ */

  --z-index-base: 0;
  --z-index-dropdown: 1;
  --z-index-sticky: 10;
  --z-index-modal-backdrop: 100;
  --z-index-modal: 200;
  --z-index-toast: 1000;

  /* ============================================
     DECORATION SYSTEM
     ============================================ */

  --decoration-thickness: 0.3ex;
  --decoration-offset: 0.3ex;

  /* ============================================
     GRADIENT SYSTEM
     ============================================ */

  --gradient-brand: linear-gradient(135deg, var(--color-mint), var(--color-sea), var(--color-lilac), var(--color-peach));
  --gradient-mint-sea: linear-gradient(135deg, var(--color-mint), var(--color-sea));
  --gradient-sea-lilac: linear-gradient(135deg, var(--color-sea), var(--color-lilac));
  --gradient-lilac-peach: linear-gradient(135deg, var(--color-lilac), var(--color-peach));

  /* ============================================
     OPACITY SYSTEM
     ============================================ */

  --opacity-0: 0;
  --opacity-10: 0.1;
  --opacity-20: 0.2;
  --opacity-30: 0.3;
  --opacity-40: 0.4;
  --opacity-50: 0.5;
  --opacity-60: 0.6;
  --opacity-70: 0.7;
  --opacity-80: 0.8;
  --opacity-90: 0.9;
  --opacity-100: 1;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-body);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  min-block-size: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  inline-size: 100%;
}

img {
  max-inline-size: 100%;
  block-size: auto;
  display: block;
}

/* ============================================
   LAYOUT COMPONENTS
   ============================================ */

.page-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  inline-size: 100%;
  overflow-x: hidden;
}

.container {
  inline-size: 100%;
  max-inline-size: var(--container-max-width);
  margin-inline: auto;
  padding: var(--space-10) var(--space-6);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-snug);
  margin-block-end: var(--space-6);
  color: var(--color-text-primary);
}

h1 {
  font-size: var(--font-size-8xl);
  margin-block-end: var(--space-8);
}

h2 {
  font-size: var(--font-size-7xl);
  margin-block-start: var(--space-10);
}

h3 {
  font-size: var(--font-size-4xl);
}

p {
  margin-block-end: var(--space-6);
}

/* Decorative Underlines */
.underline-mint,
.underline-lilac,
.underline-sea,
.underline-peach,
.underline-pink,
.underline-green {
  text-decoration: underline;
  text-decoration-thickness: var(--decoration-thickness);
  text-underline-offset: var(--decoration-offset);
}

.underline-mint { text-decoration-color: var(--color-mint-dark); }
.underline-lilac { text-decoration-color: var(--color-lilac-dark); }
.underline-sea { text-decoration-color: var(--color-sea-dark); }
.underline-peach { text-decoration-color: var(--color-peach-dark); }
.underline-pink { text-decoration-color: var(--color-pink-dark); }
.underline-green { text-decoration-color: var(--color-green-dark); }

/* ============================================
   NAVIGATION
   ============================================ */

nav {
  inline-size: 100%;
  max-inline-size: var(--container-max-width);
  margin-inline: auto;
  padding: var(--space-10) var(--space-6) var(--space-8);
  display: flex;
  justify-content: center;
  gap: var(--space-10);
  flex-wrap: wrap;
}

nav a {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  position: relative;
  transition: all var(--transition-slow);
}

nav a:hover,
nav a.active {
  text-decoration: underline;
  text-decoration-thickness: var(--decoration-thickness);
  text-underline-offset: var(--decoration-offset);
}

nav a:nth-child(1):hover { text-decoration-color: var(--color-mint); }
nav a:nth-child(2):hover { text-decoration-color: var(--color-lilac); }
nav a:nth-child(3):hover { text-decoration-color: var(--color-sea); }

/* ============================================
   HERO SECTIONS
   ============================================ */

.hero {
  text-align: center;
  padding: var(--space-20) var(--space-10);
  margin: 0;
  inline-size: 100%;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: var(--opacity-10);
  z-index: var(--z-index-base);
  background-size: 400% 400%;
  animation: gradientMove 15s ease infinite;
}

.hero-content {
  position: relative;
  z-index: var(--z-index-dropdown);
  max-inline-size: var(--container-max-width);
  margin-inline: auto;
}

/* Hero Variants */
.hero-home {
  background: linear-gradient(135deg, #6fdcbf 0%, #72cada 50%, #ae8fdb 100%);
}

.hero-home::before {
  background: var(--gradient-brand);
}

.hero-tutorials {
  background: linear-gradient(135deg, rgba(111, 220, 191, 0.2) 0%, rgba(114, 202, 218, 0.2) 100%);
  border-block-end: var(--border-width-thick) solid var(--color-mint);
}

.hero-tutorials::before {
  background: var(--gradient-mint-sea);
}

.hero-about {
  background: linear-gradient(135deg, rgba(114, 202, 218, 0.2) 0%, rgba(174, 143, 219, 0.2) 100%);
  border-block-end: var(--border-width-thick) solid var(--color-sea);
}

.hero-about::before {
  background: var(--gradient-sea-lilac);
}

.hero-archive {
  background: linear-gradient(135deg, rgba(174, 143, 219, 0.2) 0%, rgba(242, 195, 192, 0.2) 100%);
  border-block-end: var(--border-width-thick) solid var(--color-lilac);
}

.hero-archive::before {
  background: var(--gradient-lilac-peach);
}

@keyframes gradientMove {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero h1 {
  font-size: var(--font-size-9xl);
  margin-block-end: var(--space-6);
}

.hero .subtitle {
  font-size: var(--font-size-4xl);
  color: var(--color-text-secondary);
  margin-block-end: 0;
}

/* Profile Image */
.profile-image-container {
  margin-block-end: var(--space-10);
  display: flex;
  justify-content: center;
}

.profile-image {
  inline-size: var(--size-profile-base);
  block-size: var(--size-profile-base);
  border-radius: var(--border-radius-round);
  object-fit: cover;
  border: var(--border-width-heavy) solid var(--color-bg-secondary);
  box-shadow: var(--shadow-xl);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
  position: relative;
}

.profile-image::before {
  content: '';
  position: absolute;
  inset: calc(var(--border-width-heavy) * -1);
  border-radius: var(--border-radius-round);
  background: var(--gradient-brand);
  z-index: -1;
  opacity: var(--opacity-0);
  transition: opacity var(--transition-slow);
}

.profile-image:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-3xl);
}

/* ============================================
   SOCIAL LINKS
   Developer-focused social platforms
   ============================================ */

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin-block-start: var(--space-10);
  flex-wrap: wrap;
  max-inline-size: 600px;
  margin-inline: auto;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  inline-size: var(--size-icon-lg);
  block-size: var(--size-icon-lg);
  border-radius: var(--border-radius-round);
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  transition: all var(--transition-slow);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  position: relative;
}

.social-link:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.social-link svg {
  inline-size: var(--size-icon-base);
  block-size: var(--size-icon-base);
  position: relative;
  z-index: 1;
}

/* Platform-specific hover colors */

/* GitHub - #181717 */
.social-link[href*="github.com"]:hover {
  background: #181717;
  color: var(--color-text-inverse);
}

/* GitLab - #FC6D26 */
.social-link[href*="gitlab.com"]:hover {
  background: #FC6D26;
  color: var(--color-text-inverse);
}

/* LinkedIn - #0A66C2 */
.social-link[href*="linkedin.com"]:hover {
  background: #0A66C2;
  color: var(--color-text-inverse);
}

/* Twitter/X - #000000 */
.social-link[href*="twitter.com"]:hover,
.social-link[href*="x.com"]:hover {
  background: #000000;
  color: var(--color-text-inverse);
}

/* Mastodon - #6364FF */
.social-link[href*="mastodon"]:hover {
  background: #6364FF;
  color: var(--color-text-inverse);
}

/* Stack Overflow - #F48024 */
.social-link[href*="stackoverflow.com"]:hover {
  background: #F48024;
  color: var(--color-text-inverse);
}

/* Dev.to - #0A0A0A */
.social-link[href*="dev.to"]:hover {
  background: #0A0A0A;
  color: var(--color-text-inverse);
}

/* Medium - #000000 */
.social-link[href*="medium.com"]:hover {
  background: #000000;
  color: var(--color-text-inverse);
}

/* Hashnode - #2962FF */
.social-link[href*="hashnode"]:hover {
  background: #2962FF;
  color: var(--color-text-inverse);
}

/* CodePen - #000000 */
.social-link[href*="codepen.io"]:hover {
  background: #000000;
  color: var(--color-text-inverse);
}

/* Dribbble - #EA4C89 */
.social-link[href*="dribbble.com"]:hover {
  background: #EA4C89;
  color: var(--color-text-inverse);
}

/* Behance - #1769FF */
.social-link[href*="behance.net"]:hover {
  background: #1769FF;
  color: var(--color-text-inverse);
}

/* YouTube - #FF0000 */
.social-link[href*="youtube.com"]:hover {
  background: #FF0000;
  color: var(--color-text-inverse);
}

/* Twitch - #9146FF */
.social-link[href*="twitch.tv"]:hover {
  background: #9146FF;
  color: var(--color-text-inverse);
}

/* Discord - #5865F2 */
.social-link[href*="discord"]:hover {
  background: #5865F2;
  color: var(--color-text-inverse);
}

/* Slack - #4A154B */
.social-link[href*="slack.com"]:hover {
  background: #4A154B;
  color: var(--color-text-inverse);
}

/* Reddit - #FF4500 */
.social-link[href*="reddit.com"]:hover {
  background: #FF4500;
  color: var(--color-text-inverse);
}

/* Hacker News - #FF6600 */
.social-link[href*="news.ycombinator.com"]:hover {
  background: #FF6600;
  color: var(--color-text-inverse);
}

/* Product Hunt - #DA552F */
.social-link[href*="producthunt.com"]:hover {
  background: #DA552F;
  color: var(--color-text-inverse);
}

/* Indie Hackers - #0E2439 */
.social-link[href*="indiehackers.com"]:hover {
  background: #0E2439;
  color: var(--color-text-inverse);
}

/* npm - #CB3837 */
.social-link[href*="npmjs.com"]:hover {
  background: #CB3837;
  color: var(--color-text-inverse);
}

/* Docker Hub - #2496ED */
.social-link[href*="hub.docker.com"]:hover {
  background: #2496ED;
  color: var(--color-text-inverse);
}

/* Bitbucket - #0052CC */
.social-link[href*="bitbucket.org"]:hover {
  background: #0052CC;
  color: var(--color-text-inverse);
}

/* Figma - #F24E1E */
.social-link[href*="figma.com"]:hover {
  background: #F24E1E;
  color: var(--color-text-inverse);
}

/* Notion - #000000 */
.social-link[href*="notion.so"]:hover {
  background: #000000;
  color: var(--color-text-inverse);
}

/* Substack - #FF6719 */
.social-link[href*="substack.com"]:hover {
  background: #FF6719;
  color: var(--color-text-inverse);
}

/* Email - Brand color */
.social-link[href^="mailto:"]:hover {
  background: var(--color-mint);
  color: var(--color-text-inverse);
}

/* Website/Blog - Brand color */
.social-link[href*="blog"]:hover,
.social-link[rel="me"]:hover {
  background: var(--color-lilac);
  color: var(--color-text-inverse);
}

/* Bluesky - #1285FE */
.social-link[href*="bsky.app"]:hover {
  background: #1285FE;
  color: var(--color-text-inverse);
}

/* Threads - #000000 */
.social-link[href*="threads.net"]:hover {
  background: #000000;
  color: var(--color-text-inverse);
}

/* Polywork - #6C4AF7 */
.social-link[href*="polywork.com"]:hover {
  background: #6C4AF7;
  color: var(--color-text-inverse);
}

/* Ko-fi - #FF5E5B */
.social-link[href*="ko-fi.com"]:hover {
  background: #FF5E5B;
  color: var(--color-text-inverse);
}

/* Patreon - #FF424D */
.social-link[href*="patreon.com"]:hover {
  background: #FF424D;
  color: var(--color-text-inverse);
}

/* Buy Me a Coffee - #FFDD00 */
.social-link[href*="buymeacoffee.com"]:hover {
  background: #FFDD00;
  color: #000000;
}

/* Spotify - #1DB954 */
.social-link[href*="spotify.com"]:hover {
  background: #1DB954;
  color: var(--color-text-inverse);
}

/* Apple Podcasts - #9933CC */
.social-link[href*="podcasts.apple.com"]:hover {
  background: #9933CC;
  color: var(--color-text-inverse);
}

/* Instagram - Gradient effect */
.social-link[href*="instagram.com"]:hover {
  background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
  color: var(--color-text-inverse);
}

/* Facebook - #1877F2 */
.social-link[href*="facebook.com"]:hover {
  background: #1877F2;
  color: var(--color-text-inverse);
}

/* TikTok - #000000 */
.social-link[href*="tiktok.com"]:hover {
  background: #000000;
  color: var(--color-text-inverse);
}

/* ResearchGate - #00D0AF */
.social-link[href*="researchgate.net"]:hover {
  background: #00D0AF;
  color: var(--color-text-inverse);
}

/* ORCID - #A6CE39 */
.social-link[href*="orcid.org"]:hover {
  background: #A6CE39;
  color: var(--color-text-inverse);
}

/* Google Scholar - #4285F4 */
.social-link[href*="scholar.google"]:hover {
  background: #4285F4;
  color: var(--color-text-inverse);
}

/* Fallback for any other links - use theme colors */
.social-link:not([href*="github"]):not([href*="gitlab"]):not([href*="linkedin"]):not([href*="twitter"]):not([href*="x.com"]):not([href*="mastodon"]):not([href*="stackoverflow"]):not([href*="dev.to"]):not([href*="medium"]):not([href*="hashnode"]):not([href*="codepen"]):not([href*="dribbble"]):not([href*="behance"]):not([href*="youtube"]):not([href*="twitch"]):not([href*="discord"]):not([href*="slack"]):not([href*="reddit"]):not([href*="news.ycombinator"]):not([href*="producthunt"]):not([href*="indiehackers"]):not([href*="npmjs"]):not([href*="hub.docker"]):not([href*="bitbucket"]):not([href*="figma"]):not([href*="notion"]):not([href*="substack"]):not([href^="mailto:"]):not([href*="blog"]):not([rel="me"]):not([href*="bsky.app"]):not([href*="threads.net"]):not([href*="polywork"]):not([href*="ko-fi"]):not([href*="patreon"]):not([href*="buymeacoffee"]):not([href*="spotify"]):not([href*="podcasts.apple"]):not([href*="instagram"]):not([href*="facebook"]):not([href*="tiktok"]):not([href*="researchgate"]):not([href*="orcid"]):not([href*="scholar.google"]):hover {
  background: var(--color-sea);
  color: var(--color-text-inverse);
}

/* ============================================
   ARTICLE CARDS
   ============================================ */

.articles-grid {
  display: grid;
  gap: var(--space-10);
  margin: var(--space-14) 0;
}

.article-card {
  padding: var(--space-10);
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius-lg);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
  border-inline-start: var(--border-width-heavy) solid var(--color-mint);
}

.article-card:nth-child(2) { border-inline-start-color: var(--color-lilac); }
.article-card:nth-child(3) { border-inline-start-color: var(--color-sea); }
.article-card:nth-child(4) { border-inline-start-color: var(--color-peach); }

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.article-card h2 {
  margin-block-start: 0;
  font-size: var(--font-size-5xl);
}

.article-card h2 a {
  color: var(--color-text-primary);
  text-decoration: none;
}

.article-card h2 a:hover {
  text-decoration: underline;
  text-decoration-thickness: var(--decoration-thickness);
  text-underline-offset: var(--decoration-offset);
}

.article-meta {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  margin-block-end: var(--space-6);
}

.article-excerpt {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ============================================
   TAGS
   ============================================ */

.tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-block-start: var(--space-6);
}

.tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: var(--color-bg-tertiary);
  border-radius: var(--border-radius-3xl);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  color: var(--color-text-tertiary);
  transition: all var(--transition-base);
  border: 1.5px solid transparent;
}

.tag:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-xs);
}

/* Tag Color Variants */
.tag.tag-mint {
  background: var(--color-mint-light);
  border-color: var(--color-mint);
  color: var(--color-mint-dark);
}

.tag.tag-lilac {
  background: var(--color-lilac-light);
  border-color: var(--color-lilac);
  color: var(--color-lilac-dark);
}

.tag.tag-sea {
  background: var(--color-sea-light);
  border-color: var(--color-sea);
  color: var(--color-sea-dark);
}

.tag.tag-peach {
  background: var(--color-peach-light);
  border-color: var(--color-peach);
  color: var(--color-peach-dark);
}

.tag.tag-rose {
  background: var(--color-rose-light);
  border-color: var(--color-rose);
  color: var(--color-rose-dark);
}

.tag.tag-green {
  background: var(--color-green-light);
  border-color: var(--color-green);
  color: var(--color-green-dark);
}

.tag.tag-pink {
  background: var(--color-pink-light);
  border-color: var(--color-pink);
  color: var(--color-pink-dark);
}

.tag.tag-blue {
  background: var(--color-blue-light);
  border-color: var(--color-blue);
  color: var(--color-blue-dark);
}

.tag.tag-yellow {
  background: var(--color-yellow-light);
  border-color: var(--color-yellow);
  color: var(--color-yellow-dark);
}

.tag--small {
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-3);
}

/* ============================================
   ARTICLE LAYOUT
   ============================================ */

.article {
  inline-size: 100%;
  overflow-x: hidden;
}

.article-blog,
.article-tutorial {
  background: var(--color-bg-secondary);
}

/* Article Header */
.article-header {
  text-align: center;
  margin-block-end: var(--space-14);
  padding-block-end: var(--space-10);
  border-block-end: var(--border-width-base) solid var(--color-bg-tertiary);
}

.article-header .tags {
  justify-content: center;
  margin-block-start: var(--space-8);
}

/* Article Hero Section */
.article-hero {
  inline-size: 100%;
  position: relative;
  border-block-end: var(--border-width-thin) solid var(--color-bg-tertiary);
}

.article-hero--simple {
  background: linear-gradient(135deg, rgba(111, 220, 191, 0.08), rgba(114, 202, 218, 0.08));
  padding: var(--space-20) var(--space-10) var(--space-14);
}

.article-hero--simple .article-hero__content {
  max-inline-size: var(--container-max-width);
  margin-inline: auto;
}

.article-hero--tutorial {
  position: relative;
  padding: var(--space-20) var(--space-10) var(--space-14);
  overflow: hidden;
}

.article-hero--tutorial .article-hero__background {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: var(--z-index-base);
}

.article-hero--tutorial .article-hero__image {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  opacity: 0.12;
  filter: blur(8px) brightness(1.1);
}

.article-hero--tutorial .article-hero__content {
  position: relative;
  z-index: var(--z-index-dropdown);
  max-inline-size: var(--container-max-width);
  margin-inline: auto;
}

/* Article Title */
.article-title {
  font-size: clamp(var(--font-size-7xl), 5vw, var(--font-size-9xl));
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  margin: 0;
  color: var(--color-text-primary);
}

/* Article Meta */
.article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  margin-block-end: var(--space-8);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  font-weight: var(--font-weight-medium);
  flex-wrap: wrap;
}

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

.article-meta__reading-time {
  color: var(--color-mint);
}

.article-meta--inline {
  margin-block-end: var(--space-10);
  padding-block-end: var(--space-10);
  border-block-end: var(--border-width-thin) solid var(--color-bg-tertiary);
}

.article-meta__item {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-size: var(--font-size-base);
}

.article-meta__label {
  color: var(--color-text-disabled);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  font-weight: var(--font-weight-semibold);
}

.article-meta__value {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

/* Article Badge */
.article-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-5);
  background: var(--gradient-mint-sea);
  color: var(--color-text-inverse);
  border-radius: var(--border-radius-3xl);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-wide);
}

/* Article Tags */
.article-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-block-start: var(--space-8);
}

.article-tags--inline {
  margin-block-start: 0;
}

.article-tags--footer {
  margin-block-start: 0;
  margin-block-end: var(--space-10);
}

.article-tags__label {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-tertiary);
  margin-inline-end: var(--space-1);
}

/* Article Body */
.article-body {
  inline-size: 100%;
  padding: var(--space-14) var(--space-10);
}

.article-body > * {
  max-inline-size: var(--container-max-width);
  margin-inline: auto;
}

/* Article Content */
.article-content {
  font-size: var(--font-size-body-lg);
  line-height: var(--line-height-loose);
  color: #2d2d2d;
}

.article-content p {
  margin-block-end: var(--space-8);
}

.article-content h2 {
  font-size: var(--font-size-6xl);
  margin-block-start: var(--space-14);
  margin-block-end: var(--space-6);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  line-height: var(--line-height-snug);
}

.article-content h3 {
  font-size: var(--font-size-4xl);
  margin-block-start: var(--space-12);
  margin-block-end: var(--space-5);
  font-weight: var(--font-weight-semibold);
  color: #333;
}

.article-content h4 {
  font-size: var(--font-size-3xl);
  margin-block-start: var(--space-10);
  margin-block-end: var(--space-4);
  font-weight: var(--font-weight-semibold);
  color: #444;
}

.article-content code {
  font-family: var(--font-mono);
  background: var(--color-bg-code-inline);
  padding: 0.2em 0.5em;
  border-radius: var(--border-radius-base);
  font-size: 0.9em;
  color: var(--color-syntax-inline);
}

.article-content pre {
  background: var(--color-syntax-bg);
  color: var(--color-syntax-text);
  padding: var(--space-8);
  border-radius: var(--border-radius-xl);
  overflow-x: auto;
  margin: var(--space-10) 0;
}

.article-content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* Syntax Highlighting - Accessible Colors */
.article-content pre.hljs {
  background: var(--color-syntax-bg);
  color: var(--color-syntax-text);
}

.article-content pre .hljs-keyword,
.article-content pre .hljs-selector-tag,
.article-content pre .hljs-literal,
.article-content pre .hljs-section,
.article-content pre .hljs-link {
  color: var(--color-syntax-keyword);
}

.article-content pre .hljs-title,
.article-content pre .hljs-title.function_,
.article-content pre .hljs-title.class_,
.article-content pre .hljs-type {
  color: var(--color-syntax-function);
}

.article-content pre .hljs-string,
.article-content pre .hljs-meta .hljs-string {
  color: var(--color-syntax-string);
}

.article-content pre .hljs-attr,
.article-content pre .hljs-attribute,
.article-content pre .hljs-variable {
  color: var(--color-syntax-text);
}

.article-content pre .hljs-number,
.article-content pre .hljs-built_in {
  color: var(--color-syntax-number);
}

.article-content pre .hljs-comment,
.article-content pre .hljs-quote {
  color: var(--color-syntax-comment);
  font-style: italic;
}

/* Lists */
.article-content ol,
.article-content ul {
  margin: var(--space-8) 0;
  padding-inline-start: var(--space-9);
}

.article-content li {
  margin-block-end: var(--space-4);
  line-height: var(--line-height-loose);
}

/* Blockquotes */
.article-content blockquote {
  border-inline-start: var(--border-width-heavy) solid var(--color-mint);
  background: var(--color-bg-blockquote);
  padding: var(--space-7) var(--space-8);
  margin: var(--space-10) 0;
  border-radius: 0 var(--border-radius-lg) var(--border-radius-lg) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

/* Tutorial Specific */
.article-tutorial .article-content h2 {
  border-block-end: var(--border-width-thick) solid var(--color-mint);
  padding-block-end: var(--space-2);
}

/* Article Footer */
.article-footer {
  margin-block-start: var(--space-16);
  padding-block-start: var(--space-12);
  border-block-start: var(--border-width-thin) solid var(--color-bg-tertiary);
}

/* Article Navigation */
.article-nav {
  text-align: center;
  margin-block-start: var(--space-10);
}

.article-nav__link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-5) var(--space-9);
  color: var(--color-mint-dark);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-lg);
  transition: all var(--transition-base);
  border-radius: var(--border-radius-lg);
  border: var(--border-width-base) solid var(--color-mint-dark);
}

.article-nav__link:hover {
  background: var(--color-mint-dark);
  color: var(--color-text-inverse);
  transform: translateX(-4px);
}

/* ============================================
   ABOUT PAGE
   ============================================ */

.about-content {
  font-size: var(--font-size-2xl);
  line-height: var(--line-height-extra-loose);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(var(--size-profile-lg), 1fr));
  gap: var(--space-8);
  margin: var(--space-10) 0;
}

.skill-category h3 {
  font-size: var(--font-size-2xl);
  margin-block-end: var(--space-2);
}

.skill-category ul {
  list-style: none;
}

.skill-category li {
  padding: var(--space-2) 0;
  border-block-end: var(--border-width-thin) solid var(--color-bg-tertiary);
}

.skill-category li:last-child {
  border-block-end: none;
}

/* ============================================
   ARCHIVE PAGE
   ============================================ */

.archive-list {
  list-style: none;
  margin-block-start: var(--space-10);
}

.archive-item {
  padding: var(--space-8) 0;
  border-block-end: var(--border-width-thin) solid var(--color-bg-tertiary);
  display: flex;
  gap: var(--space-10);
  align-items: flex-start;
}

.archive-item:last-child {
  border-block-end: none;
}

.archive-item h3 {
  margin-block-end: var(--space-2);
}

.archive-item h3 a {
  color: var(--color-text-primary);
  text-decoration: none;
}

.archive-item h3 a:hover {
  text-decoration: underline;
  text-decoration-thickness: var(--decoration-thickness);
  text-underline-offset: var(--decoration-offset);
}

/* ============================================
   TUTORIAL LAYOUT WITH SIDEBAR
   ============================================ */

.tutorial-layout {
  display: flex;
  gap: 0;
  align-items: flex-start;
  inline-size: 100%;
  min-block-size: 60vh;
  flex: 1;
}

.tutorial-layout.no-sidebar {
  justify-content: center;
}

.tutorial-layout.no-sidebar .tutorial-main {
  max-inline-size: var(--container-max-width);
  padding: var(--space-10) var(--space-6);
}

/* Sidebar */
.tutorial-sidebar {
  position: sticky;
  inset-block-start: 0;
  inline-size: var(--size-sidebar-md);
  flex-shrink: 0;
  background: transparent;
  border-inline-end: none;
  max-block-size: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.sidebar-toggle {
  display: none;
  position: fixed;
  inset-block-end: var(--space-10);
  inset-inline-end: var(--space-10);
  inline-size: var(--size-icon-xl);
  block-size: var(--size-icon-xl);
  border-radius: var(--border-radius-round);
  background: var(--gradient-mint-sea);
  color: var(--color-text-inverse);
  border: none;
  box-shadow: var(--shadow-mint);
  cursor: pointer;
  z-index: var(--z-index-modal-backdrop);
  align-items: center;
  justify-content: center;
  transition: all var(--transition-slow);
}

.sidebar-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-mint-lg);
}

.sidebar-content {
  display: flex;
  flex-direction: column;
  block-size: 100%;
  overflow: hidden;
}

.sidebar-header {
  padding: var(--space-12) var(--space-10) var(--space-8);
  border-block-end: none;
  background: transparent;
}

.sidebar-header h3 {
  margin: 0;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-disabled);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-widest);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0;
  inline-size: 100%;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Scrollbar Styling */
.sidebar-nav::-webkit-scrollbar {
  inline-size: 6px;
}

.sidebar-nav::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
  background: var(--color-bg-tertiary);
  border-radius: var(--border-radius-sm);
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-medium);
}

/* Tree Structure */
.tree-node {
  margin: 0;
  inline-size: 100%;
}

.tree-node:first-of-type {
  margin-block-start: 0;
}

.tree-children {
  display: none;
  overflow: hidden;
  inline-size: 100%;
}

.tree-node.expanded > .tree-children {
  display: block;
  animation: slideDown 0.2s ease;
  inline-size: 100%;
}

@keyframes slideDown {
  from {
    opacity: var(--opacity-0);
    max-block-size: 0;
  }
  to {
    opacity: var(--opacity-100);
    max-block-size: 1000px;
  }
}

/* Tree Items */
.tree-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  inline-size: 100%;
  padding: var(--space-4) var(--space-8) var(--space-4) var(--space-10);
  background: transparent;
  border: none;
  border-inline-start: var(--border-width-base) solid transparent;
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-normal);
  color: var(--color-text-tertiary);
  text-align: start;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  box-sizing: border-box;
}

.tree-item:hover {
  color: var(--color-mint);
  border-inline-start-color: rgba(111, 220, 191, var(--opacity-30));
  background: rgba(111, 220, 191, 0.03);
}

.tree-item.active {
  color: var(--color-mint);
  border-inline-start-color: var(--color-mint);
  font-weight: var(--font-weight-medium);
  background: rgba(111, 220, 191, 0.06);
}

.tree-item-all {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-lg);
  padding: var(--space-5) var(--space-10);
  border-block-end: none;
  margin-block-end: var(--space-2);
  background: transparent;
}

.tree-parent {
  font-weight: var(--font-weight-medium);
}

.tree-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  inline-size: var(--size-icon-sm);
  block-size: var(--size-icon-sm);
  flex-shrink: 0;
  color: var(--color-text-disabled);
  transition: transform var(--transition-base);
}

.tree-item-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tree-item-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-inline-size: var(--space-8);
  block-size: var(--space-8);
  padding: 0 var(--space-2);
  background: transparent;
  border-radius: var(--border-radius-pill);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-disabled);
  flex-shrink: 0;
}

.tree-item.active .tree-item-count {
  background: var(--color-mint-light);
  color: var(--color-mint);
}

/* Main Content Area */
.tutorial-main {
  flex: 1;
  min-inline-size: 0;
  inline-size: 100%;
  padding: var(--space-10) var(--space-14);
  background: var(--color-bg-primary);
}

.tutorial-main section {
  max-inline-size: var(--container-wide-max-width);
  margin-inline: auto;
}

.tutorial-main .archive-list {
  inline-size: 100%;
}

/* No Results Message */
.no-results {
  text-align: center;
  padding: var(--space-14) var(--space-10);
  color: var(--color-text-disabled);
  font-size: var(--font-size-xl);
}

.no-results p {
  margin: 0;
}

/* Filter Animations */
@keyframes fadeInSlide {
  from {
    opacity: var(--opacity-0);
    transform: translateY(10px);
  }
  to {
    opacity: var(--opacity-100);
    transform: translateY(0);
  }
}

/* Tutorial Items with Hero Images */
.tutorial-item {
  display: flex;
  gap: var(--space-10);
  align-items: flex-start;
}

.tutorial-hero-link {
  flex-shrink: 0;
  display: block;
  inline-size: var(--size-profile-lg);
  block-size: var(--size-profile-lg);
  text-decoration: none;
}

.tutorial-hero-image {
  inline-size: 100%;
  block-size: 100%;
  border-radius: var(--border-radius-2xl);
  overflow: hidden;
  position: relative;
  background: var(--gradient-brand);
  background-size: 300% 300%;
  animation: gradientShift 8s ease infinite;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-slow);
}

.tutorial-hero-image:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-2xl);
}

.tutorial-hero-image img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.tutorial-hero-image:hover img {
  transform: scale(1.05);
}

.tutorial-content-wrapper {
  flex: 1;
  min-inline-size: 0;
}

/* ============================================
   BLOG FILTER
   ============================================ */

.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-12) 0 var(--space-14);
  padding: 0;
  background: transparent;
  border-radius: 0;
  border: none;
  justify-content: flex-start;
}

.filter-tag {
  padding: var(--space-2) var(--space-6);
  border: none;
  background: transparent;
  color: var(--color-text-tertiary);
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-normal);
  white-space: nowrap;
  border-block-end: var(--border-width-base) solid transparent;
}

.filter-tag:hover {
  color: var(--color-mint);
  background: rgba(111, 220, 191, 0.06);
}

.filter-tag.active {
  color: var(--color-mint);
  font-weight: var(--font-weight-medium);
  background: rgba(111, 220, 191, var(--opacity-10));
  border-block-end-color: var(--color-mint);
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  inline-size: 100%;
  max-inline-size: var(--container-max-width);
  margin-inline: auto;
  margin-block-start: auto;
  padding: var(--space-14) var(--space-6) var(--space-10);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-md);
  border-block-start: var(--border-width-thin) solid var(--color-bg-tertiary);
}

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

footer a:hover {
  text-decoration: underline;
}

/* ============================================
   ACCENT BAR
   ============================================ */

.bg-accent {
  position: fixed;
  inset-block-start: 0;
  inset-inline-start: 0;
  inset-inline-end: 0;
  block-size: 4px;
  background: linear-gradient(
    90deg,
    var(--color-mint),
    var(--color-lilac),
    var(--color-sea),
    var(--color-peach),
    var(--color-mint)
  );
  background-size: 200% 100%;
  animation: gradient 15s ease infinite;
  z-index: var(--z-index-toast);
}

@keyframes gradient {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet and Mobile */
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  /* Hero Adjustments */
  .article-hero--simple,
  .article-hero--tutorial {
    padding: var(--space-14) var(--space-8) var(--space-10);
  }

  .article-title {
    font-size: clamp(var(--font-size-5xl), 4vw, var(--font-size-8xl));
  }

  .article-body {
    padding: var(--space-10) var(--space-8);
    display: block;
    visibility: visible;
    opacity: 1;
  }

  .article-meta--inline {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
  }

  .article-content {
    font-size: var(--font-size-body);
    display: block;
    visibility: visible;
    opacity: 1;
  }

  .article-content > * {
    display: block;
    visibility: visible;
  }

  /* Ensure article structure is visible on mobile */
  .article {
    display: block;
    visibility: visible;
  }

  .article-blog,
  .article-tutorial {
    display: block;
    visibility: visible;
  }

  /* Profile Image */
  .profile-image {
    inline-size: var(--size-profile-sm);
    block-size: var(--size-profile-sm);
  }

  /* Hero Text */
  .hero h1 {
    font-size: var(--font-size-8xl);
  }

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

  /* Social Links */
  .social-links {
    gap: var(--space-6);
  }

  .social-link {
    inline-size: 44px;
    block-size: 44px;
  }

  .social-link svg {
    inline-size: var(--size-icon-md);
    block-size: var(--size-icon-md);
  }

  /* Navigation */
  nav {
    gap: var(--space-6);
  }

  /* Skills Grid */
  .skills-grid {
    grid-template-columns: 1fr;
  }

  /* Tutorial Sidebar */
  .tutorial-layout {
    flex-direction: column;
  }

  .tutorial-sidebar {
    position: fixed;
    inset-block-start: 0;
    inset-inline-start: -100%;
    inline-size: var(--size-sidebar);
    block-size: 100vh;
    max-block-size: 100vh;
    z-index: var(--z-index-modal);
    border-inline-end: none;
    transition: inset-inline-start var(--transition-slow);
    box-shadow: var(--shadow-sidebar);
    background: var(--color-bg-secondary);
  }

  .tutorial-sidebar.open {
    inset-inline-start: 0;
  }

  .sidebar-content {
    background: var(--color-bg-secondary);
  }

  .sidebar-header {
    background: var(--color-bg-primary);
    border-block-end: var(--border-width-thin) solid var(--color-bg-tertiary);
  }

  .sidebar-toggle {
    display: flex;
    opacity: 1;
  }

  /* Improve sidebar tree items visibility on mobile */
  .tree-item {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.8);
    padding: var(--space-5) var(--space-8);
    margin-block-end: var(--space-1);
    border-radius: var(--border-radius-base);
  }

  .tree-item:hover {
    background: var(--color-mint-light);
    color: var(--color-mint-dark);
  }

  .tree-item.active {
    background: var(--color-mint-light);
    color: var(--color-mint-dark);
    border-inline-start-color: var(--color-mint);
  }

  .tree-item-all {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    font-weight: var(--font-weight-bold);
  }

  .tutorial-main {
    inline-size: 100%;
    padding: var(--space-8) var(--space-6);
  }

  .tutorial-main section {
    max-inline-size: 100%;
  }

  /* Tutorial Items & Archive Items */
  .tutorial-item,
  .archive-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
  }

  .tutorial-hero-link {
    inline-size: 100%;
    block-size: var(--size-profile-xl);
  }

  .tutorial-content-wrapper {
    display: block;
    visibility: visible;
    opacity: 1;
    inline-size: 100%;
  }

  .archive-item h3,
  .archive-item .article-meta,
  .archive-item .article-excerpt,
  .archive-item .tags {
    display: block;
    visibility: visible;
    opacity: 1;
  }

  .archive-item h3 {
    font-size: var(--font-size-4xl);
    margin-block-end: var(--space-4);
  }

  .archive-item .article-meta {
    margin-block-end: var(--space-3);
    font-size: var(--font-size-base);
  }

  .archive-item .tags {
    margin-block-start: var(--space-4);
  }
}

/* Tablet Specific */
@media (max-width: 1024px) {
  .tutorial-main {
    padding: var(--space-10) var(--space-8);
  }
}