/* bluebrazelton.com — shared styles */

:root {
  --bg: oklch(0.97 0.008 80);
  --bg-soft: oklch(0.945 0.008 80);
  --ink: oklch(0.20 0.01 60);
  --ink-soft: oklch(0.40 0.01 60);
  --ink-muted: oklch(0.55 0.01 60);
  --rule: oklch(0.86 0.008 80);
  --rule-soft: oklch(0.92 0.008 80);
  --accent: oklch(0.62 0.105 215);
  --accent-soft: oklch(0.62 0.105 215 / 0.12);
  --accent-deep: oklch(0.32 0.10 250);
  --accent-tint: oklch(0.92 0.05 215);
  --accent-tint-soft: oklch(0.955 0.028 215);

  --serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --measure: 36rem;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-variant-numeric: oldstyle-nums;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  background:
    /* left rail */
    linear-gradient(to right, var(--accent-deep) 0, var(--accent-deep) 6px, transparent 6px) left top / 100% 100% no-repeat,
    linear-gradient(to right, oklch(0.78 0.10 190) 8px, oklch(0.78 0.10 190) 9px, transparent 9px) left top / 100% 100% no-repeat,
    /* right rail */
    linear-gradient(to left, var(--accent-deep) 0, var(--accent-deep) 6px, transparent 6px) right top / 100% 100% no-repeat,
    linear-gradient(to left, oklch(0.78 0.10 190) 8px, oklch(0.78 0.10 190) 9px, transparent 9px) right top / 100% 100% no-repeat,
    var(--bg);
}

@media (max-width: 720px) {
  body { background: var(--bg); }
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--rule);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: text-decoration-color 0.15s, color 0.15s;
}
a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

::selection {
  background: var(--accent);
  color: var(--bg);
}

/* Layout shell ----------------------------------------------------- */

.shell {
  width: 100%;
  max-width: 56rem;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.shell--narrow {
  max-width: 44rem;
}

main {
  flex: 1;
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(4rem, 8vw, 7rem);
  position: relative;
}

/* Decorative side panels framing the content column */
main::before,
main::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: clamp(0px, calc((100vw - 64rem) / 2), 9rem);
  background:
    repeating-linear-gradient(
      135deg,
      transparent 0 14px,
      oklch(0.85 0.04 245 / 0.35) 14px 15px
    ),
    var(--accent-tint-soft);
  border-left: 1px solid oklch(0.82 0.05 245);
  border-right: 1px solid oklch(0.82 0.05 245);
  pointer-events: none;
  z-index: -1;
}
main::before {
  left: 9px;
}
main::after {
  right: 9px;
}
@media (max-width: 1024px) {
  main::before, main::after { display: none; }
}

/* Site header ------------------------------------------------------ */

.site-header {
  border-bottom: 1px solid oklch(0.78 0.05 245);
  background: var(--accent-deep);
  color: oklch(0.96 0.02 245);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(1.1);
}

.site-header__inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.25rem 0 1.1rem;
  flex-wrap: wrap;
}

.brand {
  font-family: var(--serif);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  text-decoration: none;
  color: oklch(0.97 0.015 245);
}
.brand .brand__dot {
  color: oklch(0.78 0.10 215);
}

.nav {
  display: flex;
  gap: 1.5rem;
  font-family: var(--sans);
  font-size: 0.8125rem;
  letter-spacing: 0.01em;
}
.nav a {
  text-decoration: none;
  color: oklch(0.82 0.04 245);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}
.nav a:hover { color: oklch(0.97 0.02 245); }
.nav a[aria-current="page"] {
  color: oklch(0.97 0.02 245);
  border-bottom-color: oklch(0.78 0.10 215);
  border-bottom-width: 2px;
}

/* Site footer ------------------------------------------------------ */

.site-footer {
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 0.8125rem;
  color: var(--ink-muted);
  padding: 2rem 0 2.5rem;
}
.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.site-footer a {
  color: var(--ink-muted);
  text-decoration-color: var(--rule);
}
.site-footer a:hover { color: var(--accent); }

/* Typography ------------------------------------------------------- */

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.012em;
  color: var(--ink);
  line-height: 1.18;
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 4.5vw, 2.875rem);
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 1.08;
}

h2 {
  font-size: 1.4rem;
  font-weight: 500;
  margin: 2.75rem 0 0.85rem;
}

h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 1.5rem 0 0.4rem;
}

p {
  margin: 0 0 1.1em;
  max-width: var(--measure);
  text-wrap: pretty;
}

.lead {
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--ink);
  font-weight: 400;
  max-width: 32rem;
}

.eyebrow {
  font-family: var(--sans);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin: 0 0 0.6rem;
  display: block;
}

.dateline {
  font-family: var(--sans);
  font-size: 0.75rem;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.rule {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 3rem 0;
}

/* Page header ------------------------------------------------------ */

.page-head {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--accent);
}
.page-head h1 { margin-bottom: 0.6rem; }
.page-head .page-head__sub {
  font-family: var(--sans);
  font-size: 0.875rem;
  color: var(--ink-muted);
  letter-spacing: 0.01em;
}

/* Lists with structure -------------------------------------------- */

.entry-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--rule-soft);
}
.entry-list > li {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 1.5rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--rule-soft);
  align-items: baseline;
}
.entry-list .entry-meta {
  font-family: var(--sans);
  font-size: 0.75rem;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  padding-top: 0.15rem;
}
.entry-list .entry-body {
  max-width: 36rem;
}
.entry-list .entry-body__title {
  font-family: var(--serif);
  font-size: 1.0625rem;
  font-weight: 500;
  line-height: 1.35;
  margin: 0 0 0.25rem;
}
.entry-list .entry-body__cite {
  font-family: var(--sans);
  font-size: 0.8125rem;
  color: var(--ink-soft);
  font-style: normal;
}
.entry-list .entry-body__note {
  font-family: var(--sans);
  font-size: 0.8125rem;
  color: var(--ink-muted);
  margin-top: 0.4rem;
}

@media (max-width: 640px) {
  .entry-list > li {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
}

/* Featured / card -------------------------------------------------- */

.feature {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  padding: 1.5rem;
  border: 1px solid oklch(0.82 0.05 245);
  background: var(--accent-tint-soft);
  border-left: 3px solid var(--accent);
}
.feature__tag {
  font-family: var(--sans);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  white-space: nowrap;
}
.feature__title {
  font-family: var(--serif);
  font-size: 1.0625rem;
  font-weight: 500;
  margin: 0 0 0.3rem;
}
.feature__body {
  font-family: var(--sans);
  font-size: 0.875rem;
  color: var(--ink-soft);
  margin: 0;
}
.feature__link {
  font-family: var(--sans);
  font-size: 0.8125rem;
  margin-top: 0.6rem;
  display: inline-block;
}

@media (max-width: 640px) {
  .feature {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

/* Image placeholder ------------------------------------------------ */

.placeholder {
  background:
    repeating-linear-gradient(
      135deg,
      var(--rule-soft) 0 1px,
      transparent 1px 9px
    ),
    var(--bg-soft);
  border: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
  aspect-ratio: 4 / 5;
}
.placeholder__inner {
  background: var(--bg);
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--rule);
}

/* Two-column layouts ---------------------------------------------- */

.two-col {
  display: grid;
  grid-template-columns: 14rem 1fr;
  gap: 3rem;
  align-items: start;
}
@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; gap: 1.25rem; }
}

.aside-label {
  font-family: var(--sans);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  position: sticky;
  top: 5rem;
}

/* Buttons / inline links ------------------------------------------ */

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--sans);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  text-decoration: none;
  transition: all 0.15s;
}
.button:hover {
  background: var(--ink);
  color: var(--bg);
}
.button--accent {
  border-color: var(--accent);
  color: var(--accent);
}
.button--accent:hover {
  background: var(--accent);
  color: var(--bg);
}

.arrow::after {
  content: " →";
  color: var(--ink-muted);
}

/* Definitions / metadata strips ----------------------------------- */

.dl {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 0.5rem 1.5rem;
  font-family: var(--sans);
  font-size: 0.875rem;
  margin: 0;
}
.dl dt {
  color: var(--ink-muted);
  font-weight: 500;
  letter-spacing: 0.01em;
}
.dl dd {
  margin: 0;
  color: var(--ink);
}

/* Mono terminal block (Aegis) ------------------------------------- */

.terminal {
  font-family: var(--mono);
  font-size: 0.8125rem;
  background: var(--bg-soft);
  border: 1px solid var(--rule);
  padding: 1rem 1.25rem;
  color: var(--ink-soft);
  line-height: 1.7;
  white-space: pre-wrap;
}
.terminal .term-prompt { color: var(--accent); user-select: none; }
.terminal .term-dim { color: var(--ink-muted); }

/* Misc ------------------------------------------------------------- */

.muted { color: var(--ink-muted); }
.small { font-size: 0.875rem; }
.smallest { font-size: 0.75rem; }
.sans { font-family: var(--sans); }
.mono { font-family: var(--mono); }

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-family: var(--sans);
  font-size: 0.75rem;
  margin: 0.6rem 0 0;
}
.tag {
  border: 1px solid var(--rule);
  padding: 0.15rem 0.5rem;
  color: var(--ink-soft);
  letter-spacing: 0.01em;
}

/* Pull quote ------------------------------------------------------- */

.pullquote {
  font-family: var(--serif);
  font-size: 1.375rem;
  line-height: 1.4;
  font-style: italic;
  color: var(--ink);
  border-left: 2px solid var(--accent);
  padding: 0.25rem 0 0.25rem 1.25rem;
  margin: 2rem 0;
  max-width: 32rem;
}

/* Tweaks panel toggleable -------------------------------------- */
[data-theme="warm"] {
  --bg: oklch(0.97 0.008 80);
  --bg-soft: oklch(0.945 0.008 80);
  --rule: oklch(0.86 0.008 80);
  --rule-soft: oklch(0.92 0.008 80);
}
[data-theme="cool"] {
  --bg: oklch(0.975 0.005 240);
  --bg-soft: oklch(0.95 0.006 240);
  --rule: oklch(0.86 0.005 240);
  --rule-soft: oklch(0.92 0.005 240);
}
[data-theme="paper"] {
  --bg: oklch(0.96 0.012 85);
  --bg-soft: oklch(0.935 0.014 85);
  --rule: oklch(0.84 0.014 85);
  --rule-soft: oklch(0.91 0.014 85);
}

[data-accent="warmblue"] { --accent: oklch(0.62 0.105 215); --accent-soft: oklch(0.62 0.105 215 / 0.12); --accent-deep: oklch(0.32 0.10 250); --accent-tint: oklch(0.92 0.05 215); --accent-tint-soft: oklch(0.955 0.028 215); }
[data-accent="dusk"]     { --accent: oklch(0.45 0.11 255); --accent-soft: oklch(0.45 0.11 255 / 0.10); --accent-deep: oklch(0.28 0.08 260); --accent-tint: oklch(0.92 0.03 255); --accent-tint-soft: oklch(0.955 0.018 255); }
[data-accent="oxblood"]  { --accent: oklch(0.48 0.13 25); --accent-soft: oklch(0.48 0.13 25 / 0.10); --accent-deep: oklch(0.30 0.09 25); --accent-tint: oklch(0.93 0.035 25); --accent-tint-soft: oklch(0.955 0.022 25); }
[data-accent="forest"]   { --accent: oklch(0.46 0.10 150); --accent-soft: oklch(0.46 0.10 150 / 0.10); --accent-deep: oklch(0.28 0.07 150); --accent-tint: oklch(0.93 0.035 150); --accent-tint-soft: oklch(0.955 0.022 150); }
[data-accent="none"]     { --accent: oklch(0.20 0.01 60); --accent-soft: oklch(0.20 0.01 60 / 0.06); --accent-deep: oklch(0.20 0.01 60); --accent-tint: oklch(0.92 0 0); --accent-tint-soft: oklch(0.955 0 0); }

[data-type="editorial"] { --serif: "Source Serif 4", Georgia, serif; --sans: "Inter", system-ui, sans-serif; }
[data-type="literary"]  { --serif: "EB Garamond", Georgia, serif; --sans: "Inter", system-ui, sans-serif; }
[data-type="modern"]    { --serif: "Newsreader", Georgia, serif; --sans: "Inter", system-ui, sans-serif; }