/* Dollars and Dragon — site styles (Direction C "Twin Session").
   Depends on tokens.css (--cd-* variables) and fonts.css (self-hosted Space Grotesk + Inter). */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--cd-font-body);
  font-size: var(--cd-text-md);
  line-height: var(--cd-leading-body);
  color: var(--cd-night);
  background: var(--cd-white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--cd-cobalt);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-thickness: 2px;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--cd-night);
  outline-offset: 3px;
  box-shadow: var(--cd-focus);
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--cd-accent);
  color: var(--cd-night);
  font-weight: 700;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* ——— Site header (cobalt, 84 px) ——— */
.site-header {
  position: relative;
  z-index: 50;
  background: var(--cd-cobalt);
  color: var(--cd-white);
  padding: 0 var(--cd-gutter);
}

.site-header__inner {
  max-width: var(--cd-page-max);
  height: 84px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand__lockup {
  width: auto;
  height: 46px;
}

.site-header a:focus-visible,
.site-header button:focus-visible,
.hero a:focus-visible {
  outline: none;
  box-shadow: var(--cd-focus);
}

.nav-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  padding: 0 1rem;
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--cd-radius-pill);
  color: var(--cd-white);
  font-family: var(--cd-font-body);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

.nav-toggle:hover {
  border-color: var(--cd-white);
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0 28px;
}

.site-nav a {
  display: inline-block;
  padding: 6px 0;
  color: var(--cd-on-cobalt-muted);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--cd-white);
}

.site-nav a[aria-current="page"] {
  color: var(--cd-white);
  box-shadow: inset 0 -3px 0 var(--cd-accent);
}

/* ——— Main ——— */
main {
  flex: 1;
  width: min(100% - 2 * var(--cd-gutter), 52rem);
  margin: 0 auto;
  padding: var(--cd-space-8) 0 var(--cd-space-9);
}

main.page-narrow {
  width: min(100% - 2 * var(--cd-gutter), 44rem);
}

main.home {
  width: 100%;
  padding-top: 0;
}

.home > .lanes,
.home > .featured {
  width: min(100% - 2 * var(--cd-gutter), var(--cd-page-max));
  margin-left: auto;
  margin-right: auto;
}

/* ——— Home hero (cobalt band) ——— */
.hero {
  background: var(--cd-cobalt);
  color: var(--cd-white);
  padding: 52px var(--cd-gutter) 84px;
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 520px;
  gap: 56px;
  align-items: center;
  max-width: var(--cd-page-max);
  margin: 0 auto;
}

.hero h1 {
  margin: 0 0 20px;
  font-family: var(--cd-font-head);
  font-weight: var(--cd-weight-head);
  font-size: clamp(40px, 3.9vw, 56px);
  line-height: var(--cd-leading-head);
  letter-spacing: var(--cd-tracking-head);
  text-wrap: balance;
  color: var(--cd-white);
}

.hero__lead {
  margin: 0 0 30px;
  max-width: 600px;
  font-size: var(--cd-text-lg);
  line-height: 1.5;
  color: var(--cd-on-cobalt-muted);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 26px;
  font-family: var(--cd-font-body);
  font-size: 17px;
  font-weight: 700;
  color: var(--cd-night);
  background: var(--cd-accent);
  border: 2px solid var(--cd-accent);
  border-radius: var(--cd-radius-pill);
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
  filter: brightness(1.05);
}

.btn--ghost {
  color: var(--cd-white);
  background: transparent;
  border-color: rgba(255, 255, 255, 0.4);
  font-weight: 600;
}

.btn--ghost:hover {
  border-color: var(--cd-white);
}

.hero__card {
  margin: 0;
  background: var(--cd-white);
  border-radius: var(--cd-radius-lg);
  box-shadow: var(--cd-shadow-card);
  overflow: hidden;
}

.hero__card img {
  width: 100%;
}

/* ——— Lane cards (three mist cards below the band) ——— */
.lanes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 28px;
  margin-bottom: var(--cd-space-7);
}

.lane-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 22px 22px;
  min-height: 44px;
  background: var(--cd-mist);
  border-radius: var(--cd-radius-md);
  color: var(--cd-night);
  text-decoration: none;
  border: 2px solid transparent;
}

.lane-card:hover {
  border-color: var(--cd-rule);
}

.lane-card:focus-visible {
  border-radius: var(--cd-radius-md);
}

.lane-card__label {
  font-size: var(--cd-text-xs);
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cd-cobalt);
}

.lane-card__title {
  font-family: var(--cd-font-head);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--cd-night);
}

.lane-card__blurb {
  margin-top: 2px;
  font-size: var(--cd-text-sm);
  line-height: 1.45;
  color: var(--cd-slate);
}

/* ——— Featured note card ——— */
.featured {
  margin-bottom: var(--cd-space-4);
  padding: 28px 30px 30px;
  background: var(--cd-white);
  border: 1px solid var(--cd-rule);
  border-radius: var(--cd-radius-md);
  box-shadow: var(--cd-shadow-sm);
}

.featured__label {
  margin: 0 0 10px;
  font-size: var(--cd-text-xs);
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cd-cobalt);
}

.featured h2 {
  margin: 0 0 8px;
  font-family: var(--cd-font-head);
  font-size: var(--cd-text-xl);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.featured h2 a {
  color: var(--cd-night);
  text-decoration: none;
}

.featured h2 a:hover {
  color: var(--cd-cobalt);
}

.featured__meta {
  margin: 0 0 12px;
  font-size: var(--cd-text-xs);
  color: var(--cd-slate);
  font-variant-numeric: var(--cd-numeric);
}

.featured__deck {
  margin: 0 0 16px;
  max-width: 40rem;
  color: var(--cd-night);
}

.featured__link {
  font-weight: 600;
}

.featured__link::after {
  content: " →";
}

/* ——— Inner pages ——— */
.page-header {
  margin-bottom: var(--cd-space-7);
  padding-bottom: var(--cd-space-6);
  border-bottom: 1px solid var(--cd-rule);
}

.page-header h1 {
  margin: 0 0 12px;
  font-family: var(--cd-font-head);
  font-weight: 700;
  font-size: var(--cd-text-2xl);
  line-height: 1.05;
  letter-spacing: var(--cd-tracking-head);
  text-wrap: balance;
}

.page-header .lede {
  margin: 0;
  font-size: var(--cd-text-lg);
  line-height: 1.5;
  color: var(--cd-slate);
}

.prose h2 {
  margin: var(--cd-space-7) 0 var(--cd-space-3);
  font-family: var(--cd-font-head);
  font-weight: 700;
  font-size: var(--cd-text-xl);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.prose h3 {
  margin: var(--cd-space-6) 0 var(--cd-space-2);
  font-family: var(--cd-font-head);
  font-weight: 700;
  font-size: var(--cd-text-lg);
  letter-spacing: -0.01em;
}

.prose p {
  margin: 0 0 1.1em;
}

.prose ul,
.prose ol {
  margin: 0 0 1.25em;
  padding-left: 1.25em;
}

.prose li {
  margin-bottom: 0.4em;
}

.prose blockquote {
  margin: var(--cd-space-6) 0;
  padding: var(--cd-space-4) var(--cd-space-5);
  border-left: 4px solid var(--cd-cobalt);
  background: var(--cd-mist);
  border-radius: 0 var(--cd-radius-sm) var(--cd-radius-sm) 0;
  font-family: var(--cd-font-head);
  font-size: var(--cd-text-lg);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

/* Thesis framework */
.prose .framework {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  counter-reset: framework;
}

.framework li {
  counter-increment: framework;
  margin: 0;
  padding: 20px 22px;
  background: var(--cd-mist);
  border-radius: var(--cd-radius-md);
  font-size: var(--cd-text-sm);
  line-height: 1.5;
  color: var(--cd-slate);
}

.framework li strong {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 6px;
  font-family: var(--cd-font-head);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cd-night);
}

.framework li strong::before {
  content: counter(framework, decimal-leading-zero);
  font-family: var(--cd-font-body);
  font-size: var(--cd-text-xs);
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--cd-cobalt);
  font-variant-numeric: var(--cd-numeric);
}

/* Notes list */
.note-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.note-list li {
  border-bottom: 1px solid var(--cd-rule);
}

.note-list li:first-child {
  border-top: 1px solid var(--cd-rule);
}

.note-list a {
  display: grid;
  grid-template-columns: 7rem 1fr;
  column-gap: 1.25rem;
  row-gap: 0.35rem;
  align-items: baseline;
  padding: 1.25rem 0.85rem;
  margin: 0 -0.85rem;
  border-radius: var(--cd-radius-sm);
  color: inherit;
  text-decoration: none;
}

.note-list a:hover {
  background: var(--cd-mist);
}

.note-list a:hover .note-list__title {
  color: var(--cd-cobalt);
}

.note-list__date {
  grid-column: 1;
  grid-row: 1;
  font-size: var(--cd-text-xs);
  color: var(--cd-slate);
  font-variant-numeric: var(--cd-numeric);
}

.note-list__title {
  grid-column: 2;
  grid-row: 1;
  font-family: var(--cd-font-head);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--cd-night);
}

.note-list__excerpt {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  font-size: var(--cd-text-sm);
  color: var(--cd-slate);
  line-height: 1.45;
}

/* Article */
.article-meta {
  margin: 0;
  font-size: var(--cd-text-xs);
  color: var(--cd-slate);
  font-variant-numeric: var(--cd-numeric);
}

.page-header .article-title {
  font-size: clamp(2rem, 4.5vw, var(--cd-text-2xl));
}

.template-badge {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cd-night);
  background: var(--cd-accent);
  border-radius: var(--cd-radius-pill);
}

.callout {
  margin: 1.5rem 0;
  padding: 18px 22px;
  background: var(--cd-mist);
  border-left: 4px solid var(--cd-cobalt);
  border-radius: 0 var(--cd-radius-md) var(--cd-radius-md) 0;
  font-size: var(--cd-text-sm);
  color: var(--cd-night);
}

.callout--spaced {
  margin-top: 2rem;
}

.prose--spaced {
  margin-top: 2rem;
}

/* Contact */
.contact-card {
  margin: 0;
  padding: 24px 26px;
  background: var(--cd-mist);
  border-radius: var(--cd-radius-md);
}

.contact-card dt {
  margin: 0 0 4px;
  font-size: var(--cd-text-xs);
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cd-cobalt);
}

.contact-card dd {
  margin: 0 0 1.25rem;
  font-size: var(--cd-text-lg);
  font-weight: 600;
}

.contact-card dd:last-child {
  margin-bottom: 0;
}

.contact-muted {
  color: var(--cd-slate);
  font-weight: 400;
}

/* Disclaimer */
.prose .disclaimer-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  background: var(--cd-mist);
  border-radius: var(--cd-radius-md);
  overflow: hidden;
}

.disclaimer-list li {
  margin: 0;
  padding: 16px 22px;
  border-bottom: 1px solid var(--cd-rule);
  font-size: var(--cd-text-sm);
  line-height: 1.55;
}

.disclaimer-list li:last-child {
  border-bottom: none;
}

.disclaimer-list li strong {
  display: block;
  margin-bottom: 2px;
  font-family: var(--cd-font-head);
  font-size: var(--cd-text-md);
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* ——— Footer (night) ——— */
.site-footer {
  margin-top: auto;
  background: var(--cd-night);
  color: var(--cd-on-dark-muted);
  padding: 0 var(--cd-gutter);
}

.site-footer__inner {
  max-width: var(--cd-page-max);
  margin: 0 auto;
  padding: 32px 0 36px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-footer__mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.site-footer__tagline {
  margin: 0;
  font-size: var(--cd-text-sm);
  color: var(--cd-on-dark-muted);
  max-width: 34rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
}

.site-footer a {
  display: inline-block;
  padding: 6px 0;
  font-size: var(--cd-text-sm);
  color: var(--cd-white);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.site-footer a:focus-visible {
  outline: none;
  box-shadow: var(--cd-focus);
}

.site-footer__copy {
  flex-basis: 100%;
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: var(--cd-text-xs);
  color: var(--cd-on-dark-muted);
}

/* ——— Responsive ——— */
@media (max-width: 1100px) {
  .hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 440px);
    gap: 40px;
  }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
  }

  .brand__lockup {
    height: 40px;
  }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--cd-cobalt);
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    padding: 8px var(--cd-gutter) 16px;
    box-shadow: 0 12px 24px rgba(10, 14, 42, 0.2);
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav a {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 0;
  }

  .site-nav a[aria-current="page"] {
    box-shadow: none;
    text-decoration: underline;
    text-decoration-color: var(--cd-accent);
    text-decoration-thickness: 3px;
    text-underline-offset: 8px;
  }
}

@media (max-width: 767px) {
  .site-header__inner {
    height: 72px;
  }

  .brand__lockup {
    height: 34px;
  }

  .hero {
    padding: 28px var(--cd-gutter) 48px;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero__lead {
    font-size: 18px;
  }

  .lanes {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .prose .framework {
    grid-template-columns: 1fr;
  }

  .page-header h1 {
    font-size: 34px;
  }

  .note-list a {
    grid-template-columns: 1fr;
    row-gap: 0.25rem;
  }

  .note-list__date,
  .note-list__title,
  .note-list__excerpt {
    grid-column: 1;
  }

  .note-list__date { grid-row: 1; }
  .note-list__title { grid-row: 2; }
  .note-list__excerpt { grid-row: 3; }

  .featured {
    padding: 22px 20px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}