/* ========================================
   BitTek - CSS Styles
   Dark theme, typography-driven, mobile-first
   ======================================== */

/* CSS Custom Properties */
:root {
  --color-bg: #0d0d0f;
  --color-bg-elevated: #16161a;
  --color-bg-card: #1a1a1f;
  --color-text: #e8e8e8;
  --color-text-muted: #888899;
  --color-text-subtle: #5a5a6e;
  --color-text-aside: #a8a8b8;
  --color-accent: #00d4aa;
  --color-accent-dim: #00a080;
  --color-accent-subtle: rgba(0, 212, 170, 0.15);
  --color-border: #2a2a35;
  --color-aside-border: #4a4a5a;
  --color-border-light: #3a3a45;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  --max-width: 1100px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.75rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul, ol {
  padding-left: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

li {
  margin-bottom: var(--spacing-xs);
}

blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--spacing-md);
  margin: var(--spacing-md) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.stack-lg {
  gap: var(--spacing-lg);
}

.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 {
  grid-template-columns: 1fr;
}

.grid-3 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

/* Header & Navigation */
.site-header {
  background-color: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: transform 0.3s ease, box-shadow 0.3s ease, padding 0.25s ease, background-color 0.25s ease;
}

/* Mobile header auto-hide behavior - Portrait orientation */
@media (max-width: 639px) and (orientation: portrait) {
  .site-header {
    will-change: transform;
  }
  
  .site-header.header-hidden {
    transform: translateY(-100%);
  }
  
  /* Compact header: minimal height, transparency, and backdrop blur when scrolled */
  .site-header.header-compact {
    padding: 0.5rem 0;
    background-color: rgba(22, 22, 26, 0.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
    border-bottom-color: rgba(42, 42, 53, 0.5);
  }
  
  /* Hide nav links in compact mode - show only brand name */
  .site-header.header-compact .nav-links {
    display: none;
  }
  
  /* Center brand in compact mode for cleaner single-line look */
  .site-header.header-compact .nav-wrapper {
    flex-direction: row;
    justify-content: center;
    gap: 0;
  }
  
  /* Slightly reduce brand size in compact mode */
  .site-header.header-compact .brand {
    font-size: 1.2rem;
    transition: font-size 0.25s ease;
  }
  
  /* Full nav at page top - ensure smooth transition */
  .site-header:not(.header-compact) .nav-links {
    display: flex;
    transition: opacity 0.25s ease;
  }
  
  .site-header:not(.header-compact) .nav-wrapper {
    transition: gap 0.25s ease;
  }
}

/* Mobile header auto-hide behavior - Landscape orientation */
@media (max-width: 900px) and (orientation: landscape) {
  .site-header {
    will-change: transform;
    /* Always use reduced height in landscape to preserve screen real estate */
    padding: 0.4rem 0;
  }
  
  .site-header.header-hidden {
    transform: translateY(-100%);
  }
  
  /* More transparent header in landscape for less visual weight */
  .site-header.header-compact {
    background-color: rgba(22, 22, 26, 0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.2);
    border-bottom-color: rgba(42, 42, 53, 0.4);
  }
  
  /* Compact brand in landscape */
  .site-header .brand {
    font-size: 1.2rem;
  }
  
  /* Compact nav links in landscape */
  .site-header .nav-links a {
    padding: 0.4rem 0;
    font-size: 0.85rem;
  }
}

.nav-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: center;
}

@media (max-width: 639px) {
  .nav-wrapper {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .nav-links {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 0;
    padding-top: var(--spacing-xs);
    border-top: 1px solid rgba(42, 42, 53, 0.5);
  }
  
  .nav-links li {
    margin: 0;
  }
  
  .nav-links a {
    display: block;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid rgba(42, 42, 53, 0.5);
    font-size: 0.9rem;
  }
  
  .nav-links li:last-child a {
    border-bottom: none;
  }
  
  /* Reduce header visual weight on mobile */
  .site-header {
    padding: var(--spacing-xs) 0;
    border-bottom-color: rgba(42, 42, 53, 0.5);
  }
  
  /* Increase horizontal breathing room for content */
  .container {
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
  }
}

@media (min-width: 640px) {
  .nav-wrapper {
    flex-direction: row;
    justify-content: space-between;
  }
  
  .nav-links {
    display: flex !important;
  }
}

.brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-xs) var(--spacing-md);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  padding: var(--spacing-xs) 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

/* Main Content */
main {
  flex: 1;
  padding: var(--spacing-xl) 0;
}

.section {
  margin-bottom: var(--spacing-xl);
}

.section:last-child {
  margin-bottom: 0;
}

/* Mobile main content adjustments */
@media (max-width: 639px) {
  main {
    padding: var(--spacing-lg) 0;
  }
  
  .section {
    margin-bottom: var(--spacing-lg);
  }
  
  /* Reduce brand size on mobile for lighter header feel */
  .brand {
    font-size: 1.35rem;
  }
}

.page-title {
  font-size: 2.25rem;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--spacing-xl) 0;
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent-dim);
  margin-bottom: var(--spacing-sm);
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-xs);
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h2 {
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.hero-category {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.01em;
}

.hero-lead {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
  color: var(--color-text);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.microcopy {
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  font-style: italic;
}

/* Buttons */
.button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  text-align: center;
}

.button-primary {
  background-color: var(--color-accent);
  color: var(--color-bg);
}

.button-primary:hover {
  background-color: var(--color-text);
  color: var(--color-bg);
}

.button-secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border-light);
}

.button-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Cards */
.card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-2px);
}

.card h3 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

/* Card Joke Lines - Editorial Asides */
.card-joke {
  font-size: 0.925rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
  font-weight: 450;
  color: var(--color-text-aside);
  font-style: italic;
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  padding-left: calc(var(--spacing-sm) + 2px);
  border-top: 1px solid var(--color-border);
  border-left: 2px solid var(--color-accent-dim);
  background: linear-gradient(90deg, rgba(0, 212, 170, 0.06) 0%, transparent 60%);
  border-radius: 0 4px 4px 0;
}

/* Callout Box */
.callout {
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-accent-dim);
  border-left-width: 4px;
  border-radius: var(--radius);
  padding: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

.callout-creepy {
  border-left-color: var(--color-accent);
  font-style: italic;
}

/* Letter Styling */
.letter {
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
  max-width: 800px;
}

.letter p {
  margin-bottom: var(--spacing-sm);
}

.letter ul {
  margin: var(--spacing-sm) 0;
}

.letter-signature {
  margin-top: var(--spacing-lg);
  font-style: italic;
  color: var(--color-text-muted);
}

.letter-legal {
  font-size: 0.85rem;
  color: var(--color-text-subtle);
}

/* Principles */
.principle {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.principle:last-child {
  border-bottom: none;
}

.principle h3 {
  color: var(--color-accent);
}

/* Principle Footnotes - Knowing Asides */
.principle-footnote {
  font-size: 0.9rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
  font-weight: 450;
  color: var(--color-text-aside);
  font-style: italic;
  margin-top: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  padding-left: calc(var(--spacing-sm) + 2px);
  border-left: 2px solid var(--color-accent-dim);
  background: linear-gradient(90deg, rgba(0, 212, 170, 0.06) 0%, transparent 60%);
  border-radius: 0 4px 4px 0;
  display: block;
}

/* Editorial Aside - Unified Utility Class */
.aside {
  font-size: 0.9rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
  font-weight: 450;
  color: var(--color-text-aside);
  font-style: italic;
  margin-top: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  padding-left: calc(var(--spacing-sm) + 2px);
  border-left: 2px solid var(--color-accent-dim);
  background: linear-gradient(90deg, rgba(0, 212, 170, 0.06) 0%, transparent 60%);
  border-radius: 0 4px 4px 0;
  display: block;
}

/* Steps */
.steps {
  counter-reset: step;
}

.step {
  position: relative;
  padding-left: 3rem;
  margin-bottom: var(--spacing-md);
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
}

.step h4 {
  margin-bottom: var(--spacing-xs);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: var(--font-sans);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xs);
}

.form-checkbox input[type="checkbox"] {
  width: auto;
  margin-top: 0.25rem;
  accent-color: var(--color-accent);
}

.form-checkbox label {
  margin-bottom: 0;
  font-weight: 400;
}

.form-error {
  font-size: 0.875rem;
  color: #ff6b6b;
  margin-top: var(--spacing-xs);
  margin-bottom: 0;
}

.form-helper {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-sm);
  margin-bottom: 0;
}

.form-note {
  font-size: 0.9rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
  font-weight: 450;
  color: var(--color-text-aside);
  font-style: italic;
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm);
  padding-left: calc(var(--spacing-sm) + 2px);
  border-left: 2px solid var(--color-accent-dim);
  background: linear-gradient(90deg, rgba(0, 212, 170, 0.06) 0%, transparent 60%);
  border-radius: 0 4px 4px 0;
}

.form-note p {
  margin-bottom: 0.25rem;
}

.form-note p:last-child {
  margin-bottom: 0;
}

/* Contact Info */
.contact-info {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.contact-info p {
  color: var(--color-text-muted);
}

/* Footer */
.site-footer {
  background-color: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  margin-top: auto;
  text-align: center;
}

.footer-tagline {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.footer-disclaimer {
  font-size: 0.8rem;
  color: var(--color-text-subtle);
  margin-bottom: var(--spacing-xs);
}

.footer-copyright {
  font-size: 0.8rem;
  color: var(--color-text-subtle);
}

/* Utility Classes */
.subtle {
  color: var(--color-text-muted);
}

.tiny {
  font-size: 0.8rem;
}

.accent {
  color: var(--color-accent);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

/* Responsive Typography */
@media (min-width: 640px) {
  h1 {
    font-size: 3rem;
  }
  
  .hero h1 {
    font-size: 4.5rem;
  }
  
  .hero h2 {
    font-size: 1.5rem;
  }
}

/* Mobile typography refinements - smaller screens */
@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
    line-height: 1.2;
  }
  
  .hero h2 {
    font-size: 1.1rem;
    line-height: 1.5;
  }
  
  .hero-lead {
    font-size: 0.95rem;
  }
  
  .page-title {
    font-size: 1.75rem;
  }
}

/* Mobile typography refinements - mid-size phones */
@media (min-width: 481px) and (max-width: 639px) {
  .hero h1 {
    font-size: 2.5rem;
    line-height: 1.2;
  }
  
  .hero h2 {
    font-size: 1.2rem;
  }
}

@media (min-width: 900px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}

/* ========================================
   PWA Install Banner
   Subtle, non-intrusive install affordance
   ======================================== */

.pwa-install-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-md);
  pointer-events: none;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.pwa-install-banner.pwa-install-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.pwa-install-banner.pwa-install-hiding {
  opacity: 0;
  transform: translateY(20px);
}

.pwa-install-content {
  max-width: 420px;
  margin: 0 auto;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.5);
}

.pwa-install-text h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
}

.pwa-install-text p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
  line-height: 1.5;
}

.pwa-install-micro {
  font-size: 0.75rem !important;
  color: var(--color-text-subtle) !important;
  font-style: italic;
  margin-top: var(--spacing-sm);
  margin-bottom: var(--spacing-md) !important;
}

.pwa-install-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.pwa-install-btn {
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: var(--font-sans);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  text-align: center;
}

.pwa-install-primary {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}

.pwa-install-primary:hover {
  background-color: var(--color-text);
  border-color: var(--color-text);
}

.pwa-install-secondary {
  background-color: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.pwa-install-secondary:hover {
  color: var(--color-text);
  border-color: var(--color-border-light);
}

/* Desktop: horizontal button layout */
@media (min-width: 480px) {
  .pwa-install-actions {
    flex-direction: row;
    justify-content: flex-end;
  }
  
  .pwa-install-btn {
    flex: 0 0 auto;
  }
}

/* Ensure banner doesn't overlap with other fixed elements */
@media (max-width: 639px) {
  .pwa-install-banner {
    padding: var(--spacing-sm);
  }
  
  .pwa-install-content {
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

/* ========================================
   PWA Update Notice
   Non-blocking version update notification
   ======================================== */

.pwa-update-notice {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-accent);
  color: var(--color-bg);
  opacity: 0;
  transform: translateY(-100%);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.pwa-update-notice.pwa-update-visible {
  opacity: 1;
  transform: translateY(0);
}

.pwa-update-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.pwa-update-text {
  font-size: 0.9rem;
  font-weight: 500;
}

.pwa-update-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.pwa-update-btn {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: var(--font-sans);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.pwa-update-reload {
  background-color: var(--color-bg);
  color: var(--color-accent);
  border-color: var(--color-bg);
}

.pwa-update-reload:hover {
  background-color: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

.pwa-update-dismiss {
  background-color: transparent;
  color: var(--color-bg);
  border-color: transparent;
  padding: 0.4rem 0.6rem;
  font-size: 1rem;
  line-height: 1;
}

.pwa-update-dismiss:hover {
  background-color: rgba(0, 0, 0, 0.1);
}

/* iOS Share icon styling */
.pwa-icon-share {
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 1.1em;
  vertical-align: middle;
}

/* Mobile adjustments for update notice */
@media (max-width: 480px) {
  .pwa-update-content {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
  }
  
  .pwa-update-text {
    font-size: 0.85rem;
  }
}

/* ========================================
   Install Button Instructions Panel
   ======================================== */

/* Installed state for the button */
.button-installed {
  opacity: 0.7;
  cursor: default;
  background-color: var(--color-bg-card);
  border-color: var(--color-accent-dim);
  color: var(--color-accent);
}

.button-installed:hover {
  background-color: var(--color-bg-card);
  border-color: var(--color-accent-dim);
  color: var(--color-accent);
  transform: none;
}

/* Install available state - highlight the button */
.button-install-available {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
  animation: pulse-install 2s ease-in-out infinite;
}

.button-install-available:hover {
  background-color: var(--color-accent-bright);
  border-color: var(--color-accent-bright);
  color: var(--color-bg);
}

@keyframes pulse-install {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 255, 170, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(0, 255, 170, 0); }
}

/* Instructions panel */
.install-instructions-panel {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  max-width: 100%;
}

.install-instructions-panel.install-instructions-visible {
  opacity: 1;
  transform: translateY(0);
}

.install-instructions-text {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.5;
}

.install-instructions-text strong {
  color: var(--color-accent);
}

.install-instructions-close {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
  transition: color 0.2s ease;
  flex-shrink: 0;
}

.install-instructions-close:hover {
  color: var(--color-text);
}

/* Desktop reload helper (shown when SW not yet controlling) */
.desktop-reload-helper {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: var(--spacing-xs);
  padding: 0.4rem 0.75rem;
  background-color: rgba(255, 170, 0, 0.1);
  border: 1px solid rgba(255, 170, 0, 0.3);
  border-radius: var(--radius);
  font-size: 0.85rem;
}

.desktop-reload-text {
  color: #ffaa00;
}

.desktop-reload-btn {
  background: rgba(255, 170, 0, 0.2);
  border: 1px solid rgba(255, 170, 0, 0.4);
  color: #ffaa00;
  font-size: 0.8rem;
  padding: 0.25rem 0.6rem;
  border-radius: calc(var(--radius) - 2px);
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.desktop-reload-btn:hover {
  background: rgba(255, 170, 0, 0.3);
  border-color: rgba(255, 170, 0, 0.6);
}

/* Hide desktop reload helper on mobile/tablet */
@media (max-width: 1024px) {
  .desktop-reload-helper {
    display: none !important;
  }
}

/* Mobile adjustments for instructions panel */
@media (max-width: 480px) {
  .install-instructions-panel {
    flex-direction: column;
    text-align: center;
    padding: var(--spacing-sm);
  }

  .install-instructions-text {
    font-size: 0.9rem;
  }

  .install-instructions-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
  }

  .install-instructions-panel {
    position: relative;
    padding-top: var(--spacing-md);
  }
}

/* ========================================
   Install Section - Installed State
   ======================================== */

/* Section in installed state - compact and unobtrusive */
.install-section.is-installed {
  padding-top: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}

/* Hide the prompt when installed */
.install-section.is-installed .install-prompt {
  display: none;
}

/* Compact confirmation state */
.install-confirmed {
  padding: var(--spacing-xs) 0;
}

.install-confirmed-text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.install-confirmed-subtext {
  margin: 0.25rem 0 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}