/* ==========================================================================
   Kevin / Lanrenwen Studio — Handcrafted Paper & Ink Portfolio CSS (homebrew-apps)
   Inspired by Kevin's Hand-Drawn Indie Dev Avatar (avatar.jpg)
   ========================================================================== */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&family=Outfit:wght@500;600;700;800&display=swap');

/* Color Variables & Design Tokens */
:root,
html.theme-paper {
  --bg-primary: #FAF5EC;
  --bg-secondary: #F3EBDD;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FFFCF7;
  --bg-card-alt: #FFFBF2;
  
  --text-primary: #1F1C19;
  --text-secondary: #524C46;
  --text-muted: #7D756C;
  
  --accent-primary: #D96B27; /* Coffee & warm amber */
  --accent-primary-hover: #BF5615;
  --accent-secondary: #4A7C59; /* Olive green palm leaf */
  --accent-terracotta: #C0392B; /* Hand-drawn red badge */
  --accent-yellow: #E5A024; /* Sticky note warm yellow */
  --accent-cyan: #16A085; /* Soft teal badge */

  --border-ink: #1F1C19;
  --border-subtle: #E2D7C5;
  --border-dashed: #C8BAA5;
  
  --shadow-craft-sm: 2px 2px 0px #1F1C19;
  --shadow-craft: 4px 4px 0px #1F1C19;
  --shadow-craft-lg: 7px 7px 0px #1F1C19;
  --shadow-craft-hover: 8px 8px 0px #D96B27;
  
  --badge-bg: #F2E7D5;
  --terminal-bg: #272421;
  --terminal-text: #F5EFE6;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-hand: 'Caveat', cursive, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark Theme (Late-Night Coffee Mode) */
html.theme-dark,
html.dark {
  --bg-primary: #181512;
  --bg-secondary: #24201C;
  --bg-card: #2D2824;
  --bg-card-hover: #36302B;
  --bg-card-alt: #282420;
  
  --text-primary: #F5EFE6;
  --text-secondary: #D4C9B8;
  --text-muted: #9E9283;
  
  --accent-primary: #F97316;
  --accent-primary-hover: #EA580C;
  --accent-secondary: #84CC16;
  --accent-terracotta: #F87171;
  --accent-yellow: #FBBF24;
  --accent-cyan: #2DD4BF;

  --border-ink: #4A433B;
  --border-subtle: #3A342D;
  --border-dashed: #544C43;
  
  --shadow-craft-sm: 2px 2px 0px #0D0B0A;
  --shadow-craft: 4px 4px 0px #0D0B0A;
  --shadow-craft-lg: 7px 7px 0px #0D0B0A;
  --shadow-craft-hover: 8px 8px 0px #F97316;
  
  --badge-bg: #36302B;
  --terminal-bg: #12100E;
  --terminal-text: #F5EFE6;
}

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

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image: radial-gradient(var(--border-subtle) 1px, transparent 1px);
  background-size: 24px 24px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border: 2px solid var(--bg-primary);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary);
}

/* Base Container */
.content-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation Bar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(250, 245, 236, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--border-ink);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

html.theme-dark .site-header,
html.dark .site-header {
  background-color: rgba(24, 21, 18, 0.88);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  height: 72px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  white-space: nowrap;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
  white-space: nowrap;
}

.brand-avatar-img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-ink);
  box-shadow: var(--shadow-craft-sm);
  transition: transform var(--transition-fast), opacity 0.3s ease-out;
  opacity: 0;
}

.brand-avatar-img.is-loaded {
  opacity: 1;
}

.nav-brand:hover .brand-avatar-img {
  transform: rotate(-6deg) scale(1.08);
}

.brand-name {
  font-family: var(--font-heading);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.brand-badge {
  font-family: var(--font-hand);
  font-size: 1.05rem;
  color: var(--accent-primary);
  font-weight: 700;
  white-space: nowrap;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 600;
  white-space: nowrap;
  font-size: 0.95rem;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 10px;
  right: 10px;
  height: 3px;
  background-color: var(--accent-primary);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme Switcher Button */
.btn-theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 38px;
  box-sizing: border-box;
  background: var(--bg-card);
  border: 2px solid var(--border-ink);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  box-shadow: var(--shadow-craft-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.btn-theme-toggle:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-craft);
  background: var(--bg-card-hover);
}

/* Language Selector */
.lang-selector-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.lang-badge-icon {
  display: none;
}

.select-lang {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  display: inline-flex;
  align-items: center;
  height: 38px;
  box-sizing: border-box;
  background: var(--bg-card);
  border: 2px solid var(--border-ink);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0 30px 0 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  box-shadow: var(--shadow-craft-sm);
  outline: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.lang-selector-wrapper .lang-arrow-icon {
  position: absolute;
  right: 12px;
  pointer-events: none;
  color: var(--text-primary);
  transition: transform var(--transition-fast);
}

.lang-selector-wrapper:hover .lang-arrow-icon {
  transform: translateY(1px);
}

.select-lang:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-craft);
}

/* Buttons System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-ink);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-craft);
}

.btn-primary:hover {
  background-color: var(--accent-primary-hover);
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-craft-hover);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-primary);
  box-shadow: var(--shadow-craft);
}

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-craft-hover);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-copy-cmd {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  box-shadow: var(--shadow-craft-sm);
}

.btn-copy-cmd:hover {
  background-color: var(--accent-yellow);
  color: #1F1C19;
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-craft);
}

/* Hero Section */
.hero-section {
  padding: 64px 0 48px 0;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

@media (max-width: 960px) {
  .hero-section {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 40px 0;
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bg-card);
  border: 2px solid var(--border-ink);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  box-shadow: var(--shadow-craft-sm);
  margin-bottom: 20px;
}

.status-pulse {
  width: 9px;
  height: 9px;
  background-color: var(--accent-primary);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(217, 107, 39, 0.25);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.7; }
  100% { transform: scale(0.95); opacity: 1; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  line-height: 1.25;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.1rem;
  }
}

/* Sketch Highlights */
.sketch-highlight {
  position: relative;
  display: inline-block;
  z-index: 1;
  padding: 0 4px;
}

.sketch-highlight::before {
  content: '';
  position: absolute;
  inset: 55% -4px 5% -4px;
  background-color: var(--accent-yellow);
  opacity: 0.6;
  z-index: -1;
  border-radius: 4px;
  transform: rotate(-1deg);
}

.sketch-highlight.macos::before {
  background-color: #F39C12;
}

.sketch-highlight.extension::before {
  background-color: var(--accent-secondary);
  opacity: 0.5;
}

.sketch-highlight.ai::before {
  background-color: #9B59B6;
  opacity: 0.5;
}

.hero-bio {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 580px;
  line-height: 1.7;
}

/* Homebrew Terminal Box */
.hero-terminal {
  background-color: var(--terminal-bg);
  color: var(--terminal-text);
  border: 2px solid var(--border-ink);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-craft);
  overflow: hidden;
  margin-bottom: 24px;
}

.terminal-bar {
  background-color: rgba(255, 255, 255, 0.08);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.terminal-dots i:nth-child(1) { background-color: #FF5F56; }
.terminal-dots i:nth-child(2) { background-color: #FFBD2E; }
.terminal-dots i:nth-child(3) { background-color: #27C93F; }

.term-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #A8A095;
}

.terminal-body {
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.terminal-body .prompt {
  color: var(--accent-primary);
  font-weight: 700;
  margin-right: 8px;
}

/* Tech Stack Pills */
.tech-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.tech-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--bg-card);
  border: 2px solid var(--border-ink);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  box-shadow: var(--shadow-craft-sm);
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.pill-dot.swift { background-color: #F05138; }
.pill-dot.swiftui { background-color: #007ACC; }
.pill-dot.ts { background-color: #3178C6; }
.pill-dot.react { background-color: #61DAFB; }
.pill-dot.node { background-color: #5FA04E; }
.pill-dot.electron { background-color: #47ABE8; }
.pill-dot.tauri { background-color: #FFC131; }
.pill-dot.git { background-color: #F05032; }

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Right Column: Hero Avatar Illustration & Floating Doodles */
.hero-avatar-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.hero-avatar-frame {
  position: relative;
  width: 320px;
  height: 320px;
  background-color: var(--bg-card);
  border: 3px solid var(--border-ink);
  border-radius: 50%;
  box-shadow: var(--shadow-craft-lg);
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: visible;
  transition: transform 0.3s ease;
}

.avatar-image-main {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.avatar-layer-base,
.avatar-layer-top {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  transform: scale(1.04);
  pointer-events: none;
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, z-index;
}

/* Floating Doodle Badges (Matching Avatar Elements!) */
.floating-doodle {
  position: absolute;
  background-color: var(--bg-card);
  border: 2px solid var(--border-ink);
  box-shadow: var(--shadow-craft-sm);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  font-family: var(--font-hand);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  z-index: 10;
  pointer-events: none;
  animation: float-doodle 4s ease-in-out infinite alternate;
}

@keyframes float-doodle {
  0% { transform: translateY(0px) rotate(var(--base-rot, 0deg)); }
  100% { transform: translateY(-8px) rotate(calc(var(--base-rot, 0deg) + 3deg)); }
}

.doodle-speech {
  top: -15px;
  left: 15px;
  background-color: #FFFFFF;
  color: #1F1C19;
  border-radius: 18px 18px 18px 2px;
  --base-rot: -7deg;
  transform: rotate(var(--base-rot));
  animation-delay: 0s;
}

.doodle-terminal {
  top: 85px;
  left: -45px;
  background-color: var(--terminal-bg);
  color: #00FF66;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  --base-rot: -9deg;
  transform: rotate(var(--base-rot));
  animation-delay: 0.8s;
}

.doodle-terminal span {
  display: inline-block;
  width: 0;
  overflow: hidden;
  white-space: nowrap;
  border-right: 2px solid currentColor;
  animation: terminal-typing 1.25s steps(8, end) 0.35s forwards,
    terminal-caret 0.75s step-end infinite;
}

@keyframes terminal-typing {
  to { width: 9ch; }
}

@keyframes terminal-caret {
  50% { border-color: transparent; }
}

@media (prefers-reduced-motion: reduce) {
  .doodle-terminal span {
    width: 9ch;
    animation: none;
  }
}

.doodle-todo {
  top: -22px;
  right: -30px;
  background-color: var(--accent-yellow);
  color: #1F1C19;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 10px 14px;
  --base-rot: 8deg;
  transform: rotate(var(--base-rot));
  border-radius: 4px;
  animation-delay: 1.5s;
}

.doodle-todo ul {
  list-style: none;
  margin-top: 4px;
}

.doodle-todo li {
  display: flex;
  align-items: center;
  gap: 4px;
}

.doodle-binary {
  bottom: 35px;
  left: -25px;
  background-color: var(--bg-secondary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  --base-rot: -6deg;
  transform: rotate(var(--base-rot));
  animation-delay: 2.2s;
}

.doodle-coffee {
  bottom: 15px;
  right: 15px;
  background-color: #FF6B4A;
  color: #FFFFFF;
  border: 2px solid var(--border-ink);
  box-shadow: var(--shadow-craft-sm);
  border-radius: 50%;
  padding: 0;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  --base-rot: 9deg;
  transform: rotate(var(--base-rot));
  animation-delay: 3s;
  transition: background-color 0.35s ease, color 0.35s ease;
}

.emoji-cycle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.2s ease;
  user-select: none;
  transform-origin: center center;
}

.emoji-cycle.switching {
  opacity: 0;
  transform: scale(0.4) rotate(-180deg);
}

@media (max-width: 640px) {
  .hero-avatar-wrapper {
    overflow: visible;
  }

  .hero-avatar-frame {
    width: 260px;
    height: 260px;
  }

  .floating-doodle {
    display: inline-flex;
    font-size: 0.82rem;
    padding: 5px 8px;
    border-width: 1.5px;
    box-shadow: var(--shadow-craft-sm);
  }

  .doodle-speech {
    top: -12px;
    left: 8px;
    padding: 4px 8px;
    font-size: 0.85rem;
  }

  .doodle-terminal {
    top: 65px;
    left: -28px;
    font-size: 0.72rem;
    padding: 4px 7px;
  }

  .doodle-todo {
    top: -12px;
    right: -10px;
    font-size: 0.65rem;
    padding: 5px 8px;
  }

  .doodle-todo ul {
    margin-top: 2px;
  }

  .doodle-todo li {
    gap: 2px;
  }

  .doodle-binary {
    bottom: 25px;
    left: -22px;
    font-size: 0.68rem;
    padding: 4px 7px;
  }

  .doodle-coffee {
    bottom: 10px;
    right: 5px;
    width: 34px;
    height: 34px;
  }

  .doodle-coffee svg {
    width: 16px;
    height: 16px;
  }
}

/* Sections Header */
.section-header {
  margin-bottom: 40px;
}

.section-header.center {
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-hand);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* App Showcase Filter Tabs */
.apps-section {
  padding: 64px 0;
}

.filter-bar {
  display: flex;
  justify-content: center;
  margin-bottom: 36px;
  padding: 0 16px;
}

.filter-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 100%;
}

.filter-tab {
  background-color: var(--bg-card);
  border: 2px solid var(--border-ink);
  padding: 8px 18px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-craft-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.filter-tab:hover {
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-craft);
}

.filter-tab.active {
  background-color: var(--accent-primary);
  color: #FFFFFF;
  border-color: var(--border-ink);
  box-shadow: var(--shadow-craft-sm);
}

/* App Cards Grid */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 28px;
}

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

  .app-card {
    order: 3;
  }

  .app-card[data-category~="mini"] {
    order: 2;
  }

  .app-card[data-category~="ios"] {
    order: 1;
  }
}

.app-card {
  background-color: var(--bg-card);
  border: 2px solid var(--border-ink);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-craft);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color 0.3s ease;
}

.app-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-craft-hover);
  background-color: var(--bg-card-hover);
}

.app-card.hidden {
  display: none;
}

.app-card-header {
  display: flex;
  gap: 16px;
  margin-bottom: 18px;
  align-items: flex-start;
}

.app-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  object-fit: cover;
  border: 2px solid var(--border-ink);
  box-shadow: var(--shadow-craft-sm);
  background-color: var(--bg-secondary);
  flex-shrink: 0;
}

.app-icon-placeholder {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-ink);
  box-shadow: var(--shadow-craft-sm);
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  flex-shrink: 0;
}

.app-icon-image {
  object-fit: cover;
  padding: 0;
}

.app-meta {
  flex-grow: 1;
}

.app-badge-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-ink);
  text-transform: uppercase;
}

.badge-macos { background-color: #EBF5FB; color: #2980B9; }
.badge-extension { background-color: #EAFAF1; color: #27AE60; }
.badge-ai { background-color: #F5EEF8; color: #8E44AD; }
.badge-dev { background-color: #FEF9E7; color: #D35400; }
.badge-tech { background-color: var(--badge-bg); color: var(--text-primary); }

html.theme-dark .badge-macos { background-color: #1B3A4B; color: #64B5F6; }
html.theme-dark .badge-extension { background-color: #1C3B2B; color: #81C784; }
html.theme-dark .badge-ai { background-color: #381E47; color: #BA68C8; }
html.theme-dark .badge-dev { background-color: #3D2612; color: #FFB74D; }

.app-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
}

.app-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.app-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
}

.app-features {
  list-style: none;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.app-features li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-actions {
  display: flex;
  gap: 10px;
  flex-wrap: nowrap;
  align-items: center;
  margin-top: auto;
}

.app-actions > .btn {
  flex: 1 1 0;
  min-width: 0;
  padding: 8px 10px;
  font-size: 0.85rem;
  white-space: nowrap;
}

.focus-chip {
  font-family: var(--font-hand);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-primary);
  border: 1.5px dashed var(--border-dashed);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

/* Homebrew Guide & FAQ */
.guide-section {
  padding: 48px 0 64px 0;
}

.guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

@media (max-width: 860px) {
  .guide-grid {
    grid-template-columns: 1fr;
  }
}

.guide-card {
  background-color: var(--bg-card);
  border: 2px solid var(--border-ink);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-craft);
}

.guide-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.guide-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.code-block {
  background-color: var(--terminal-bg);
  color: var(--terminal-text);
  border: 2px solid var(--border-ink);
  border-radius: var(--radius-md);
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  box-shadow: var(--shadow-craft-sm);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.code-block pre {
  white-space: pre-wrap;
  word-break: break-all;
}

.code-block .cmd {
  color: #00FF66;
  font-weight: 600;
}

/* Contact Section */
.contact-section {
  padding: 36px 0 72px 0;
}

.contact-card {
  background-color: var(--bg-card);
  border: 3px solid var(--border-ink);
  border-radius: var(--radius-xl);
  padding: 44px;
  box-shadow: var(--shadow-craft-lg);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.contact-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.contact-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
}

.contact-email {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-decoration: none;
}

.contact-value-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.contact-links-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-ink);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: var(--shadow-craft-sm);
  transition: all var(--transition-fast);
}

.contact-chip:hover {
  background-color: var(--accent-primary);
  color: #FFF;
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-craft);
}

/* Footer */
.site-footer {
  border-top: 2px solid var(--border-ink);
  background-color: var(--bg-secondary);
  padding: 32px 24px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-sub {
  margin-top: 6px;
  font-family: var(--font-hand);
  font-size: 1.15rem;
  color: var(--accent-primary);
  font-weight: 700;
}

.footer-version {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  opacity: 0.55;
  margin-left: 8px;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-ink);
  vertical-align: middle;
  letter-spacing: 0.03em;
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background-color: var(--border-ink);
  color: #FFFFFF;
  border: 2px solid var(--accent-yellow);
  padding: 12px 22px;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: var(--shadow-craft-lg);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 999;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Mobile & Responsive Layout Enhancements
   ========================================================================== */

@media (max-width: 1280px) {
  .brand-badge {
    display: none;
  }

  .nav-menu {
    gap: 16px;
  }

  .nav-link {
    font-size: 0.9rem;
    padding: 4px 8px;
  }

  .nav-actions {
    gap: 8px;
  }
}

@media (max-width: 980px) {
  .nav-container {
    padding: 0 16px;
    gap: 12px;
  }

  .nav-menu {
    display: none;
  }

  .brand-badge {
    display: none;
  }

  .hero-section {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 24px 0 36px 0;
  }

  .hero-avatar-wrapper {
    order: -1;
    padding: 10px 0;
  }
}

@media (max-width: 768px) {
  .nav-container {
    height: 64px;
    padding: 0 12px;
    gap: 8px;
  }

  .nav-brand {
    gap: 8px;
  }

  .nav-actions {
    gap: 6px;
  }

  .btn-theme-toggle {
    height: 36px;
    padding: 0 12px;
    font-size: 0.85rem;
  }

  .select-lang {
    height: 36px;
    padding: 0 28px 0 10px;
    font-size: 0.85rem;
  }

  .lang-selector-wrapper .lang-arrow-icon {
    right: 9px;
    width: 10px;
    height: 10px;
  }

  .hero-title {
    font-size: 1.95rem;
    line-height: 1.3;
  }

  .hero-bio {
    font-size: 0.98rem;
    margin-bottom: 20px;
  }

  .hero-cta {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .hero-cta .btn {
    width: 100%;
    justify-content: center;
  }

  .filter-bar {
    justify-content: center;
    overflow-x: visible;
    padding: 0 10px;
    width: 100%;
  }

  .filter-tabs {
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 6px;
    width: 100%;
  }

  .filter-tab {
    padding: 6px 12px;
    font-size: 0.82rem;
  }

  .apps-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .app-card {
    padding: 20px 16px;
  }

  .guide-card {
    padding: 20px 16px;
  }

  .contact-card {
    padding: 28px 16px;
    border-radius: var(--radius-lg);
  }

  .contact-title {
    font-size: 1.6rem;
  }

  .contact-desc {
    font-size: 0.95rem;
    margin-bottom: 24px;
  }

  .contact-value-row {
    flex-direction: column;
    width: 100%;
  }

  .contact-value-row .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .brand-badge {
    display: none;
  }

  #themeToggleText {
    display: none;
  }

  .btn-theme-toggle {
    height: 34px;
    width: 34px;
    padding: 0;
    justify-content: center;
  }

  #copy-email-btn span {
    display: none;
  }

  #copy-email-btn {
    height: 34px;
    width: 34px;
    padding: 0;
    justify-content: center;
  }

  /* GitHub Button: Icon-only on small screens */
  .btn-github-nav .btn-text {
    display: none;
  }

  .btn-github-nav {
    height: 34px;
    width: 34px;
    padding: 0;
    justify-content: center;
  }

  /* Language Selector: Icon-only (Globe) on small screens */
  .lang-selector-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    padding: 0;
    background: var(--bg-card);
    border: 2px solid var(--border-ink);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-craft-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
  }

  .lang-selector-wrapper:hover {
    transform: translate(-2px, -2px);
    box-shadow: var(--shadow-craft);
  }

  .lang-selector-wrapper .lang-badge-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    font-size: 0.85rem;
    font-weight: 800;
    font-family: var(--font-sans);
    color: var(--text-primary);
    line-height: 1;
    user-select: none;
  }

  .lang-selector-wrapper .lang-arrow-icon {
    display: none;
  }

  .select-lang {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    padding: 0;
    margin: 0;
    cursor: pointer;
    z-index: 2;
    background: transparent;
    border: none;
    box-shadow: none;
  }
}

@media (max-width: 520px) {
  .hero-title {
    font-size: 1.65rem;
  }

  .hero-terminal {
    width: 100%;
  }

  .terminal-bar {
    flex-wrap: wrap;
    gap: 8px;
  }

  .terminal-body {
    padding: 12px;
    font-size: 0.8rem;
  }

  .tech-pills-row {
    gap: 6px;
  }

  .tech-pill {
    padding: 3px 8px;
    font-size: 0.75rem;
  }

  .toast {
    left: 16px;
    right: 16px;
    bottom: 16px;
    text-align: center;
    font-size: 0.82rem;
    padding: 10px 16px;
  }
}