/* Practice pages — generated by scripts/build_practice.py. Ink from brand.css. */
* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-primary);
  font-weight: var(--font-weight-book);
  color: var(--ink);
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg) 70%, #ffffff) 0%, var(--bg) 60%);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.site-banner {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.75rem 1.5rem;
  padding: 0.5rem clamp(1rem, 3vw, 1.5rem);
  background: color-mix(in srgb, var(--bg) 88%, #ffffff);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.brand-mark { line-height: 0; }
.brand-mark img { display: block; height: 3.6rem; width: auto; }

.practice-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 1.6rem;
}

.practice-nav a,
.login,
.kicker,
.crumbs,
.section-label,
.siblings a {
  font-family: var(--font-secondary);
  font-weight: var(--font-weight-light);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.practice-nav a { font-size: 0.74rem; color: var(--muted); padding-bottom: 0.15rem; border-bottom: 1px solid transparent; }
.practice-nav a:hover,
.practice-nav a[aria-current="page"] { color: var(--color-heading-primary); border-color: var(--line); }

.login { font-size: 0.68rem; color: var(--quiet); opacity: 0.5; }
.login:hover { opacity: 0.95; }

.sheet {
  flex: 1;
  width: 100%;
  max-width: 68rem;
  margin: 0 auto;
  padding: clamp(2rem, 6vh, 4rem) clamp(1rem, 4vw, 3.5rem) clamp(3rem, 8vh, 5rem);
}

.crumbs { font-size: 0.68rem; color: var(--quiet); margin-bottom: 2.5rem; }
.crumbs span { margin: 0 0.4rem; opacity: 0.5; }
.crumbs a:hover { color: var(--color-heading-primary); }

.lead { max-width: 40rem; margin-bottom: clamp(2.5rem, 7vh, 4.5rem); }
.kicker { margin: 0 0 0.9rem; font-size: 0.72rem; color: var(--color-heading-tertiary); }
.lead h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.3rem, 6vw, 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
}
.summary { margin: 0 0 1rem; font-size: clamp(1.05rem, 2.2vw, 1.22rem); line-height: 1.5; color: var(--color-heading-secondary); }
.body { margin: 0; font-size: 1rem; line-height: 1.65; color: var(--muted); }

.grid { display: grid; gap: 2.25rem 2.5rem; grid-template-columns: 1fr; }
@media (min-width: 680px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) {
  .grid.three { grid-template-columns: repeat(3, 1fr); }
  .grid.four { grid-template-columns: repeat(4, 1fr); }
}

.col { padding-top: 1.1rem; border-top: 1px solid var(--line); }
.col h2 { margin: 0 0 0.55rem; font-size: 1.3rem; letter-spacing: 0.01em; }
.col h2 a:hover { color: var(--color-heading-primary); }
.col p { margin: 0 0 0.9rem; font-size: 0.92rem; line-height: 1.55; color: var(--muted); }

.quiet-list { list-style: none; margin: 0; padding: 0; }
.quiet-list li { padding: 0.32rem 0; font-size: 0.86rem; line-height: 1.4; color: var(--color-heading-tertiary); }
.quiet-list a { border-bottom: 1px solid transparent; transition: border-color 0.2s ease; }
.quiet-list a:hover { border-color: var(--color-heading-tertiary); }
.quiet-list.plain li { color: var(--quiet); }

.section-label { margin: 0 0 1.25rem; font-size: 0.74rem; color: var(--color-heading-tertiary); }

.examples { list-style: none; margin: 0 0 3.5rem; padding: 0; max-width: 44rem; counter-reset: ex; }
.examples li { position: relative; padding: 1.2rem 0 1.2rem 2.6rem; border-top: 1px solid var(--line); counter-increment: ex; }
.examples li::before {
  content: counter(ex, decimal-leading-zero);
  position: absolute; left: 0; top: 1.35rem;
  font-family: var(--font-secondary); font-size: 0.75rem; letter-spacing: 0.1em; color: var(--quiet);
}
.examples h3 { margin: 0 0 0.4rem; font-size: 1.12rem; }
.examples p { margin: 0; font-size: 0.95rem; line-height: 1.6; color: var(--muted); }

.siblings { display: flex; flex-wrap: wrap; gap: 0.5rem 1.4rem; margin-top: 3.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.siblings a { font-size: 0.7rem; color: var(--quiet); }
.siblings a:hover,
.siblings a[aria-current="page"] { color: var(--color-heading-primary); }

footer {
  padding: 1.25rem clamp(1rem, 4vw, 3.5rem) 1.75rem;
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  font-size: 0.72rem; letter-spacing: 0.04em; color: var(--quiet);
  border-top: 1px solid var(--line);
}

@media (max-width: 640px) {
  .site-banner { grid-template-columns: auto 1fr; }
  .practice-nav { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; gap: 0.4rem 1rem; }
  .login { justify-self: end; }
  .brand-mark img { height: 2.8rem; }
}