/* musictheoryandthefretboard.com: home page and app pages.
   Self-contained on purpose. These pages load nothing from other sites,
   which the privacy page states. Colors match the book (web/css/styles.css). */

:root {
  --paper: #FBF7EF;
  --paper-dark: #F4EEE0;
  --paper-darker: #E8DEC8;
  --ink: #241F1A;
  --ink-muted: #5A4E42;
  --ink-faint: #8C7B6A;
  --amber: #B8741A;
  --amber-dark: #96600F;
  --amber-light: #F5E6C8;
  --wood: #201C18;
  --wood-text: #EDE5D8;
  --wood-muted: #A09080;
  --navy: #0C1C3D;
  --font-display: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  --font-body: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  --font-ui: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.65;
}

a { color: var(--amber-dark); }
a:hover { color: var(--ink); }

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

/* Top bar */
.site-bar {
  background: var(--wood);
  color: var(--wood-text);
  font-family: var(--font-ui);
  font-size: 0.9375rem;
}
.site-bar-inner {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0.875rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: baseline;
  justify-content: space-between;
}
.site-bar a { color: var(--wood-text); text-decoration: none; }
.site-bar a:hover { color: #fff; text-decoration: underline; }
.site-name { font-family: var(--font-display); font-size: 1.0625rem; letter-spacing: 0.01em; }
.site-nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; }
.site-nav a[aria-current="page"] { color: #F5D68A; }

/* Hero */
.hero {
  background: var(--wood);
  color: var(--wood-text);
  border-top: 1px solid #3A3028;
}
.hero-inner {
  max-width: 60rem;
  margin: 0 auto;
  padding: 3rem 1.25rem 3.25rem;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 6vw, 3.25rem);
  line-height: 1.1;
  margin: 0 0 0.75rem;
  color: #fff;
  text-wrap: balance;
}
.hero .eyebrow {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #F5D68A;
  margin: 0 0 0.75rem;
}
.hero .tagline {
  font-size: 1.25rem;
  color: var(--wood-text);
  margin: 0;
  max-width: 34rem;
}
.hero .byline {
  font-family: var(--font-ui);
  font-size: 0.9375rem;
  color: var(--wood-muted);
  margin: 1.25rem 0 0;
}

/* App hero: icon beside the title */
.app-hero .hero-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
  align-items: center;
}
.app-icon {
  width: 7.5rem;
  height: 7.5rem;
  border-radius: 1.65rem;
  flex: none;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.45);
}
.app-hero-text { flex: 1 1 18rem; }

/* Main column */
.page {
  max-width: 60rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}
.prose { max-width: 40rem; }
.prose h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  line-height: 1.25;
  margin: 2.5rem 0 0.75rem;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1875rem;
  margin: 1.75rem 0 0.5rem;
}
.prose p { margin: 0 0 1rem; }
.prose ul, .prose ol { margin: 0 0 1rem; padding-left: 1.4rem; }
.prose li { margin-bottom: 0.4rem; }
.prose .meta {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--ink-faint);
}

/* Two-column layout on the app page */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
}
@media (min-width: 52rem) {
  .split { grid-template-columns: minmax(0, 1fr) 17rem; gap: 3.5rem; align-items: start; }
}
.shot {
  margin: 0;
  max-width: 17rem;
}
.shot img {
  display: block;
  border-radius: 1.5rem;
  border: 1px solid var(--paper-darker);
  box-shadow: 0 10px 30px rgba(36, 31, 26, 0.16);
}
.shot figcaption {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--ink-faint);
  margin-top: 0.75rem;
}

/* Level list */
.levels {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  border-top: 1px solid var(--paper-darker);
}
.levels li {
  display: flex;
  gap: 1rem;
  padding: 0.7rem 0;
  margin: 0;
  border-bottom: 1px solid var(--paper-darker);
}
.levels .lv {
  flex: none;
  width: 6.5rem;
  white-space: nowrap;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber-dark);
  padding-top: 0.3rem;
}

/* Cards and callouts */
.card {
  background: var(--paper-dark);
  border: 1px solid var(--paper-darker);
  border-radius: 0.75rem;
  padding: 1.25rem 1.4rem;
  margin: 0 0 1.5rem;
}
.card > :last-child { margin-bottom: 0; }
.card h2, .card h3 { margin-top: 0; }

.home-app {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 1.5rem;
  align-items: center;
  max-width: 40rem;
}
.home-app img { width: 5rem; height: 5rem; border-radius: 1.1rem; flex: none; }
.home-app div { flex: 1 1 16rem; }
.home-app h2 { font-family: var(--font-display); font-size: 1.375rem; margin: 0 0 0.35rem; }
.home-app p { margin: 0 0 0.5rem; }

.button {
  display: inline-block;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.7rem 1.25rem;
  border-radius: 0.5rem;
  background: var(--amber);
  color: #fff;
  text-decoration: none;
}
.button:hover { background: var(--amber-dark); color: #fff; }

/* Tables on the privacy page */
.table-wrap { overflow-x: auto; margin: 0 0 1.25rem; }
table { border-collapse: collapse; width: 100%; font-size: 1rem; }
th, td {
  text-align: left;
  vertical-align: top;
  padding: 0.6rem 0.75rem 0.6rem 0;
  border-bottom: 1px solid var(--paper-darker);
}
th {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--paper-darker);
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--ink-muted);
}
.site-footer-inner {
  max-width: 60rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; }
.site-footer a { color: var(--ink-muted); }