/* =================================
   Taichiman Links — styles.css
   Linear rundown (no grid)
   ================================= */

/* Tokens */
:root {
  --bg: #f7f7f7;
  --text: #222222;
  --surface: #ffffff;

  --header-bg: #121212;
  --footer-bg: #121212;

  --brand: #0077B6;
  --brand-600: #005f8a;

  --h1-accent: #4CAF50;
  --h2-accent: #005f8a;

  --link: #0b59c7;
  --link-hover: #003d80;

  --gold: #FFD700;
  --gold-600: #FFC300;

  --border: rgba(0, 0, 0, 0.12);
  --border-dark: rgba(255, 255, 255, 0.2);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0c0c;
    --text: #f2f2f2;
    --surface: #141414;

    --header-bg: #0f0f0f;
    --footer-bg: #0f0f0f;

    /* Softer brand tones for dark */
    --brand: #0b3d5b;
    --brand-600: #0e567d;

    /* Headings switch to gold for contrast */
    --h1-accent: #FFD700;
    --h2-accent: #FFD700;

    --link: #9bd1ff;
    --link-hover: #c9e6ff;

    --border: rgba(255, 255, 255, 0.12);
  }
}

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

html, body { margin: 0; padding: 0; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}

img { max-width: 100%; height: auto; }

a {
  color: var(--link);
  text-decoration: underline; /* Links page: underline for clarity */
}
a:hover { color: var(--link-hover); }

a:focus,
button:focus,
input:focus,
label:focus {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* Optional helper if you swap input[hidden] */
.visually-hidden {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

/* Header */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: nowrap;
  padding: 10px;
  background-color: var(--header-bg);
  color: #ffffff;
}

.site-header a { color: var(--gold); }

.left-section,
.center-section,
.right-section {
  flex: 1;
  text-align: center;
  padding: 5px;
}

@media (min-width: 48em) {
  .left-section { text-align: left; }
  .right-section { text-align: right; }
}

#taijitu { width: 44px; height: 44px; }

.right-section a:first-child {
  display: inline-block;
  padding: 0.5rem;
  margin: 0 0.5rem;
}

.accessibility-link {
  font-weight: 700;
  border-radius: 4px;
}
.accessibility-link:hover,
.accessibility-link:focus {
  color: var(--gold-600);
}

/* Navigation */
nav {
  background-color: var(--brand);
  padding: 0.625em 1.25em;
}

.hamburger {
  display: block;
  font-size: 1.875em;
  cursor: pointer;
  text-align: center;
  padding: 0.5em;
  background: #333333;
  color: #ffffff;
  border-radius: 6px;
  user-select: none;
}

.menu {
  list-style: none;
  margin: 0;
  padding: 0;
  background: #333333;
  text-align: center;
  display: none;
}

#menu-toggle:checked + .hamburger + .menu { display: block; }

.menu li a {
  display: block;
  padding: 0.625em 1.25em;
  color: #ffffff;
  transition: background-color 0.2s ease, color 0.2s ease, border 0.2s ease;
  border-radius: 9999px;
  border: 2px solid transparent;
  margin: 0.25rem auto;
  max-width: 24rem;
  text-decoration: none; /* nav links are distinct buttons */
}

.menu li a:hover,
.menu li a:focus {
  background-color: var(--brand-600);
  color: var(--gold);
  border: 2px solid var(--gold);
  outline: none;
}

@media (min-width: 48em) {
  .hamburger { display: none; }
  .menu {
    display: flex;
    background: none;
    justify-content: center;
    gap: 0.25rem 0.5rem;
    flex-wrap: wrap;
  }
  .menu li { display: inline-block; }
  .menu li a { margin: 0.25rem 0.5rem; }
}

/* Main — linear rundown */
main {
  max-width: 72rem;   /* readable width but wide enough for long link rows */
  margin: 0 auto;
  padding: 1rem;
}

main > h1 {
  font-size: 2rem;
  color: var(--h1-accent);
  margin: 1rem 0 0.75rem 0;
  text-align: center;
}

main > p {
  max-width: 70ch;
  margin: 0 auto 1.25rem auto;
}

/* No grid: one column stack */
.categories {
  display: block;
}

/* Section blocks stack naturally; compact and readable */
.relaxation-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 6px solid var(--h2-accent); /* visual anchor without grid */
  border-radius: 8px;
  padding: 1rem;
  margin: 0 0 1rem 0; /* vertical rhythm */
}

.relaxation-section h2 {
  margin: 0 0 0.5rem 0;
  font-size: 1.25rem;
  color: var(--h2-accent);
}

.relaxation-section p { margin: 0.25rem 0 0.75rem 0; }

.relaxation-section ul {
  margin: 0.5rem 0 0 1.25rem;
  padding: 0;
}

.relaxation-section li {
  margin: 0.35rem 0;
}

/* Long URLs and titles should wrap, not overflow */
.relaxation-section li a {
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* Footer */
.site-footer {
  background-color: var(--footer-bg);
  color: #ffffff;
  padding: 1.5rem;
  text-align: center;
}

.site-footer a {
  color: var(--gold);
  text-decoration: none;
  transition: color 0.25s ease;
}
.site-footer a:hover,
.site-footer a:focus { color: var(--gold-600); }

/* Motion and print preferences */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  body {
    font-size: 12pt;
    color: black;
    background: none;
  }
  nav, .site-header, .site-footer { display: none; }
  main { max-width: none; }
  .relaxation-section { border-left: 0; border-radius: 0; }
}

/* Force nav bar and menu interior to the same blue at all sizes */
nav { background-color: #0077B6; }
.menu { background-color: #0077B6; }

/* Ensure desktop breakpoints do not reintroduce another background */
@media (min-width: 48.063em) { .menu { background-color: #0077B6; } }
@media (min-width: 64.063em) { .menu { background-color: #0077B6; } }
@media (min-width: 80.063em) { .menu { background-color: #0077B6; } }
@media (min-width: 90.063em) { .menu { background-color: #0077B6; } }
@media (min-width: 120.063em) { .menu { background-color: #0077B6; } }
@media (min-width: 160.063em) { .menu { background-color: #0077B6; } }