/* =========================================
   Breath Hero — Site Styles
   Tokens from DESIGN.md
   ========================================= */

/* --- Tokens --- */
:root {
  --bg: #0D0D0D;
  --bg-secondary: #1D1D1D;
  --surface: #2A2929;
  --surface-high: #3D3C3C;
  --on-bg: #FFFFFF;
  --on-bg-muted: #D0BDAF;
  --sympathetic: #FFA464;
  --balance: #3F9FFF;
  --parasympathetic: #D864FF;
  --success: #0CD0A9;
  --danger: #FF6480;

  --font-heading: 'Google Sans Mono', 'SF Mono', 'Fira Code', monospace;
  --font-body: 'Google Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 48px;
  --space-xxxl: 64px;
  --content-h: 24px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

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

/* --- Base --- */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--on-bg-muted);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body::before {
  content: '';
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80%;
  background: url('/assets/default_pattern_man.jpg') no-repeat bottom left / contain;
  opacity: 0.15;
  z-index: 0;
  pointer-events: none;
}

/* --- Lissajous canvas --- */
#waveform {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.12;
}

/* --- Navigation --- */
.site-nav {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--content-h);
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

.nav-logo img {
  display: block;
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--on-bg-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--on-bg);
}

/* --- Main content --- */
.content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-xl) var(--content-h) var(--space-xxxl);
  width: 100%;
  flex: 1;
}

/* --- Typography --- */
h1 {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--on-bg);
  margin-bottom: var(--space-lg);
}

h2 {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--on-bg);
  margin-top: var(--space-xxl);
  margin-bottom: var(--space-md);
}

h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--on-bg);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

h4 {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--on-bg);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
}

strong {
  font-weight: 600;
  color: var(--on-bg);
}

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

a:hover {
  text-decoration: underline;
}

hr {
  border: none;
  border-top: 1px solid var(--surface);
  margin: var(--space-xxl) 0;
}

/* --- Lists --- */
ul, ol {
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

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

li::marker {
  color: var(--surface-high);
}

/* --- Tables --- */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-lg);
  font-size: 14px;
}

th {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--on-bg);
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--surface-high);
}

td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--surface);
  vertical-align: top;
}

/* --- Code --- */
code {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--on-bg);
  background: var(--surface);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

pre {
  background: var(--bg-secondary);
  border: 1px solid var(--surface);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
  overflow-x: auto;
}

pre code {
  background: none;
  padding: 0;
  font-size: 13px;
  line-height: 1.5;
}

/* --- Blockquotes --- */
blockquote {
  border-left: 3px solid var(--parasympathetic);
  padding-left: var(--space-md);
  margin: var(--space-lg) 0;
  color: var(--on-bg-muted);
  font-style: italic;
}

/* --- Home page --- */
.home-content h1 {
  font-size: 56px;
  line-height: 1.05;
  margin-bottom: var(--space-xl);
}

.home-content > p:first-of-type {
  font-size: 20px;
  line-height: 1.5;
  color: var(--on-bg-muted);
}

/* Category colors in lists */
.home-content li strong:first-child {
  font-family: var(--font-heading);
}

/* --- Blog index --- */
.blog-list {
  list-style: none;
  padding: 0;
}

.blog-item {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--surface);
}

.blog-item:last-child {
  border-bottom: none;
}

.blog-item a {
  color: inherit;
  text-decoration: none;
  display: block;
}

.blog-item a:hover h2 {
  color: var(--parasympathetic);
}

.blog-item time {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--surface-high);
}

.blog-item h2 {
  font-size: 24px;
  margin-top: var(--space-xs);
  margin-bottom: var(--space-sm);
  transition: color 0.15s;
}

.blog-item p {
  color: var(--on-bg-muted);
  margin: 0;
}

.empty-state {
  color: var(--surface-high);
  font-style: italic;
}

/* --- Legal pages --- */
.legal h1 {
  font-size: 32px;
}

.legal h2 {
  font-size: 20px;
}

.legal h3 {
  font-size: 17px;
}

/* --- Footer --- */
.site-footer {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-xxl) var(--content-h) var(--space-xl);
  width: 100%;
  border-top: 1px solid var(--surface);
}

.footer-cta {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--on-bg);
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
}

.footer-links a {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--on-bg-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--on-bg);
}

.footer-legal {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.footer-legal a {
  font-size: 12px;
  color: var(--surface-high);
  text-decoration: none;
}

.footer-legal a:hover {
  color: var(--on-bg-muted);
}

.footer-copy {
  font-size: 12px;
  color: var(--surface-high);
  margin: 0;
}

/* --- Responsive --- */
@media (max-width: 600px) {
  .home-content h1 {
    font-size: 36px;
  }

  h1 { font-size: 32px; }
  h2 { font-size: 20px; }

  table {
    font-size: 13px;
  }

  th, td {
    padding: var(--space-xs) var(--space-sm);
  }
}