/* ==========================================================================
   Neva Timber Review — glulamspb.com
   Design system: imperial granite of St. Petersburg + warm glulam timber.
   Display: Fraunces · Body/UI: IBM Plex Sans · Utility/data: IBM Plex Mono
   Signature: "lamella rule" — stacked layers like a glulam cross-section.
   ========================================================================== */

:root {
  /* Stone / paper (cool, granite city) */
  --bg:          #f5f5f2;
  --paper:       #fbfbf9;
  --panel:       #eceae3;
  --panel-2:     #e4e2da;

  /* Ink (cool near-black, granite) */
  --ink:         #15191c;
  --ink-soft:    #4d555b;
  --ink-faint:   #767d82;

  /* Neva slate (secondary structural colour) */
  --slate:       #243640;
  --slate-deep:  #1a272e;

  /* Timber amber (the single warm accent — glulam wood) */
  --amber:       #b06a2c;
  --amber-deep:  #8c5320;
  --amber-soft:  #d9a368;

  /* Lines */
  --line:        #d8d6cc;
  --line-strong: #bdb9aa;

  /* Type */
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:  "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono:  "IBM Plex Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;

  /* Measure */
  --measure: 40rem;
  --maxw: 75rem;
  --radius: 3px;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--amber-deep); text-decoration: none; }
a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 2px; }
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ---------- Lamella rule (signature) ---------- */
/* Three stacked layers like the glued lamellae of a glulam beam. */
.lamella {
  height: 6px;
  border: 0;
  margin: 0;
  background:
    linear-gradient(var(--amber), var(--amber)) 0 0 / 100% 2px no-repeat,
    linear-gradient(var(--line-strong), var(--line-strong)) 0 3px / 100% 1px no-repeat,
    linear-gradient(var(--line), var(--line)) 0 5px / 100% 1px no-repeat;
}
.lamella--quiet {
  background:
    linear-gradient(var(--line-strong), var(--line-strong)) 0 0 / 100% 1px no-repeat,
    linear-gradient(var(--line), var(--line)) 0 2px / 100% 1px no-repeat,
    linear-gradient(var(--line), var(--line)) 0 4px / 100% 1px no-repeat;
}

/* ---------- Layout shell ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }

.eyebrow {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber-deep);
  font-weight: 500;
}

/* ---------- Top strip ---------- */
.topstrip {
  background: var(--slate-deep);
  color: #cdd6da;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.topstrip .wrap {
  display: flex; justify-content: space-between; gap: 1rem;
  padding-top: .5rem; padding-bottom: .5rem; flex-wrap: wrap;
}
.topstrip span { white-space: nowrap; }
.topstrip .dim { color: #8a979d; }

/* ---------- Masthead ---------- */
.masthead {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  text-align: center;
  padding: 2.1rem 1.5rem 1.6rem;
}
.masthead .brand {
  display: inline-block;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  letter-spacing: -.01em;
  line-height: 1;
  color: var(--ink);
}
.masthead .brand:hover { text-decoration: none; color: var(--ink); }
.masthead .brand .amp { color: var(--amber); font-style: italic; }
.masthead .tagline {
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: .85rem;
}
.masthead .tagline b { color: var(--ink-soft); font-weight: 500; }

/* ---------- Nav ---------- */
.nav {
  background: var(--slate);
  position: sticky; top: 0; z-index: 40;
  border-bottom: 2px solid var(--amber);
}
.nav .wrap {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: .2rem .1rem; padding: 0;
}
.nav a {
  display: inline-block;
  font-family: var(--mono);
  font-size: .76rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #d7dee2;
  padding: .85rem .95rem;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
}
.nav a:hover { color: #fff; background: rgba(255,255,255,.05); text-decoration: none; }
.nav a[aria-current="page"] { color: #fff; border-bottom-color: var(--amber); }

/* ---------- Disclosure banner ---------- */
.disclosure {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  font-size: .82rem;
  color: var(--ink-soft);
  line-height: 1.5;
}
.disclosure .wrap { padding-top: .7rem; padding-bottom: .7rem; }
.disclosure b {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--amber-deep); font-weight: 500;
  margin-right: .4rem;
}

/* ---------- Breadcrumb ---------- */
.crumbs {
  font-family: var(--mono);
  font-size: .72rem; letter-spacing: .06em;
  color: var(--ink-faint);
  padding: 1rem 0 0;
}
.crumbs a { color: var(--ink-soft); }
.crumbs .sep { color: var(--line-strong); margin: 0 .4rem; }

/* ---------- Main layout grids ---------- */
main { display: block; padding-bottom: 3.5rem; }

.layout {
  display: grid;
  grid-template-columns: minmax(0,1fr) 17.5rem;
  gap: 3rem;
  align-items: start;
  margin-top: 1.4rem;
}
.article { min-width: 0; max-width: 46rem; }
.sidebar { position: sticky; top: 4.2rem; }

@media (max-width: 60rem) {
  .layout { grid-template-columns: 1fr; gap: 2rem; }
  .sidebar { position: static; }
}

/* ---------- Article header ---------- */
.kicker {
  font-family: var(--mono);
  font-size: .72rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--amber-deep);
  margin: 1.6rem 0 1rem;
  display: flex; align-items: center; gap: .7rem;
}
.kicker::before {
  content: ""; width: 2.2rem; height: 6px; flex: none;
  background:
    linear-gradient(var(--amber), var(--amber)) 0 0 / 100% 2px no-repeat,
    linear-gradient(var(--line-strong), var(--line-strong)) 0 3px / 100% 1px no-repeat,
    linear-gradient(var(--line), var(--line)) 0 5px / 100% 1px no-repeat;
}

h1, h2, h3, h4 { font-family: var(--serif); color: var(--ink); font-weight: 600; }

h1 {
  font-size: clamp(2.1rem, 5.2vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -.015em;
  margin: 0 0 1rem;
}
.article h2 {
  font-size: clamp(1.5rem, 3vw, 1.95rem);
  line-height: 1.15;
  letter-spacing: -.01em;
  margin: 2.6rem 0 .9rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}
.article h3 {
  font-size: 1.24rem;
  line-height: 1.25;
  margin: 1.8rem 0 .5rem;
  font-weight: 600;
}
.article h4 {
  font-family: var(--mono);
  font-size: .8rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-soft); font-weight: 500;
  margin: 1.6rem 0 .6rem;
}

.deck {
  font-family: var(--serif);
  font-size: clamp(1.18rem, 2.4vw, 1.45rem);
  line-height: 1.45;
  font-weight: 400;
  color: var(--ink-soft);
  margin: 0 0 1.5rem;
}

.byline {
  font-family: var(--mono);
  font-size: .76rem; letter-spacing: .04em;
  color: var(--ink-faint);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: .8rem 0;
  margin: 0 0 1.8rem;
}
.byline b { color: var(--ink); font-weight: 600; }

.article p { margin: 0 0 1.15rem; }
.article > p:first-of-type { font-size: 1.09rem; }
.article ul, .article ol { margin: 0 0 1.3rem; padding-left: 1.2rem; }
.article li { margin: 0 0 .55rem; }
.article li::marker { color: var(--amber); }
.article strong { font-weight: 600; color: var(--ink); }

.lede-cap::first-letter {
  font-family: var(--serif);
  font-weight: 600;
  float: left;
  font-size: 3.6rem;
  line-height: .82;
  padding: .35rem .55rem 0 0;
  color: var(--amber);
}

/* ---------- Stat band ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 1.8rem 0 2.2rem;
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: var(--radius);
  overflow: hidden;
}
.stats .stat { padding: 1.1rem 1.15rem; border-left: 1px solid var(--line); }
.stats .stat:first-child { border-left: 0; }
.stat .num {
  font-family: var(--serif); font-weight: 600;
  font-size: 2.1rem; line-height: 1; color: var(--ink);
  display: block;
}
.stat .num .u { color: var(--amber); }
.stat .lbl {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--ink-faint);
  margin-top: .5rem; line-height: 1.4;
}
.stat .lbl a { color: var(--ink-faint); }
@media (max-width: 38rem) {
  .stats { grid-template-columns: repeat(2,1fr); }
  .stats .stat:nth-child(3) { border-left: 0; }
  .stats .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
}

/* ---------- Pull quote ---------- */
blockquote {
  margin: 1.8rem 0;
  padding: .2rem 0 .2rem 1.5rem;
  border-left: 4px solid var(--amber);
  font-family: var(--serif);
  font-size: 1.3rem; line-height: 1.4; font-style: italic;
  color: var(--ink);
}

/* ---------- Featured #1 card ---------- */
.featured {
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 1.6rem 1.6rem 1.4rem;
  margin: 1.6rem 0 2rem;
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.3rem;
}
.featured .rankbadge {
  font-family: var(--serif); font-weight: 600;
  width: 3.4rem; text-align: center;
}
.featured .rankbadge .hash {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .1em;
  color: var(--amber-deep); display:block;
}
.featured .rankbadge .n {
  font-size: 3.2rem; line-height: .9; color: var(--ink);
  display:block;
  border-left: 5px solid var(--amber);
  padding-left: .5rem;
  /* layered timber edge */
  box-shadow: -10px 0 0 -8px var(--amber-soft), -15px 0 0 -13px var(--line-strong);
}
.featured h3 { margin: 0 0 .4rem; font-size: 1.4rem; }
.featured .meta {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .06em;
  text-transform: uppercase; color: var(--ink-faint); margin-bottom: .7rem;
}
.featured p { margin: 0 0 .7rem; font-size: .98rem; }
.featured p:last-child { margin-bottom: 0; }
@media (max-width: 38rem) {
  .featured { grid-template-columns: 1fr; gap: .8rem; }
}

/* ---------- Tables ---------- */
.tablewrap { overflow-x: auto; margin: 1.4rem 0 1.8rem; border: 1px solid var(--line); border-radius: var(--radius); }
table.rank {
  width: 100%; border-collapse: collapse; background: var(--paper);
  font-size: .92rem; min-width: 36rem;
}
table.rank th, table.rank td {
  text-align: left; padding: .8rem .9rem; border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.rank thead th {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-faint); font-weight: 500;
  background: var(--panel); border-bottom: 1px solid var(--line-strong);
}
table.rank td .co { font-weight: 600; color: var(--ink); }
table.rank tbody tr:last-child td { border-bottom: 0; }
table.rank tbody tr:first-child td { background: rgba(176,106,44,.05); }
.fit-strong { font-family: var(--mono); font-size: .7rem; letter-spacing: .05em; text-transform: uppercase; color: var(--amber-deep); font-weight: 500; }
.fit-mod { font-family: var(--mono); font-size: .7rem; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-faint); }
.rk { font-family: var(--serif); font-weight: 600; font-size: 1.1rem; color: var(--ink); }

/* ---------- Callout / note boxes ---------- */
.note {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  margin: 1.6rem 0;
  font-size: .94rem;
  border-left: 3px solid var(--line-strong);
}
.note h4 { margin-top: 0; }
.note--amber { border-left-color: var(--amber); background: rgba(176,106,44,.06); }

/* ---------- Sources ---------- */
.sources { counter-reset: src; margin: 1rem 0 0; padding: 0; list-style: none; font-size: .88rem; }
.sources li {
  position: relative; padding-left: 2rem; margin-bottom: .7rem; color: var(--ink-soft);
}
.sources li::before {
  counter-increment: src; content: counter(src);
  position: absolute; left: 0; top: .05rem;
  font-family: var(--mono); font-size: .72rem;
  width: 1.4rem; height: 1.4rem; line-height: 1.4rem; text-align: center;
  color: #fff; background: var(--slate); border-radius: 2px;
}
sup.ref a {
  font-family: var(--mono); font-size: .62rem; font-weight: 500;
  color: #fff; background: var(--amber); border-radius: 2px;
  padding: .04rem .26rem; margin-left: .12rem; text-decoration: none;
  vertical-align: super;
}
sup.ref a:hover { background: var(--amber-deep); }

/* ---------- Signoff ---------- */
.signoff {
  display: flex; align-items: center; gap: .9rem;
  border-top: 1px solid var(--line); margin-top: 2.2rem; padding-top: 1.3rem;
  font-size: .92rem; color: var(--ink-soft);
}
.signoff .mono-mark {
  font-family: var(--serif); font-weight: 600; font-size: 1.4rem;
  width: 2.6rem; height: 2.6rem; flex: none; border: 1px solid var(--line-strong);
  display: grid; place-items: center; color: var(--amber-deep); border-radius: 2px;
}
.signoff b { color: var(--ink); font-weight: 600; }

/* ---------- FAQ ---------- */
.faq { margin: 1.4rem 0; }
.faq details {
  border-bottom: 1px solid var(--line);
  padding: .2rem 0;
}
.faq summary {
  cursor: pointer; list-style: none;
  font-family: var(--serif); font-weight: 600; font-size: 1.12rem;
  color: var(--ink); padding: .95rem 2rem .95rem 0; position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: .2rem; top: .8rem;
  font-family: var(--mono); font-size: 1.3rem; color: var(--amber); font-weight: 400;
}
.faq details[open] summary::after { content: "\2212"; }
.faq .ans { padding: 0 0 1.1rem; color: var(--ink-soft); font-size: .98rem; }
.faq .ans p { margin: 0 0 .8rem; }
.faq .ans p:last-child { margin-bottom: 0; }

/* ---------- Sidebar cards ---------- */
.scard { margin-bottom: 1.8rem; }
.scard h4, .sidebar h4 {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink); font-weight: 600;
  margin: 0 0 .8rem; padding-bottom: .55rem;
  border-bottom: 6px solid transparent;
  background:
    linear-gradient(var(--amber), var(--amber)) 0 100% / 2.4rem 2px no-repeat,
    linear-gradient(var(--line), var(--line)) 0 100% / 100% 1px no-repeat;
}
.scard ul { list-style: none; margin: 0; padding: 0; font-size: .9rem; }
.scard li { margin-bottom: .5rem; line-height: 1.4; }
.scard li a { color: var(--ink-soft); }
.scard li a:hover { color: var(--amber-deep); }

.toc ol { list-style: none; margin: 0; padding: 0; counter-reset: toc; font-size: .88rem; }
.toc li { margin-bottom: .45rem; }
.toc li a { color: var(--ink-soft); display: block; }
.toc li a:hover { color: var(--amber-deep); text-decoration: none; }

.factbox {
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.1rem 1.2rem; font-size: .9rem;
}
.factbox dl { margin: 0; }
.factbox dt {
  font-family: var(--mono); font-size: .64rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-faint); margin-top: .8rem;
}
.factbox dt:first-child { margin-top: 0; }
.factbox dd { margin: .1rem 0 0; color: var(--ink); font-weight: 500; }

.ratecard {
  background: var(--slate); color: #e7edf0; border-radius: var(--radius);
  padding: 1.2rem 1.2rem 1.3rem; margin-bottom: 1.8rem;
}
.ratecard .v {
  font-family: var(--serif); font-size: 2.6rem; font-weight: 600; line-height: 1;
  color: #fff;
}
.ratecard .v small { font-size: 1.1rem; color: var(--amber-soft); }
.ratecard .lbl {
  font-family: var(--mono); font-size: .64rem; letter-spacing: .1em;
  text-transform: uppercase; color: #9fb0b8; margin-top: .5rem;
}
.ratecard .stars { color: var(--amber-soft); letter-spacing: .15em; margin-top: .6rem; font-size: 1rem; }

/* ---------- Company directory cards ---------- */
.colist { display: grid; gap: 1.1rem; margin: 1.6rem 0; }
.coitem {
  display: grid; grid-template-columns: 2.6rem 1fr auto; gap: 1rem;
  align-items: start;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--paper); padding: 1.1rem 1.2rem;
}
.coitem:hover { border-color: var(--line-strong); }
.coitem .rkn { font-family: var(--serif); font-weight: 600; font-size: 1.7rem; color: var(--amber); line-height: 1; }
.coitem h3 { margin: 0 0 .3rem; font-size: 1.18rem; }
.coitem h3 a { color: var(--ink); }
.coitem h3 a:hover { color: var(--amber-deep); text-decoration: none; }
.coitem p { margin: 0; font-size: .92rem; color: var(--ink-soft); }
.coitem .pill {
  font-family: var(--mono); font-size: .62rem; letter-spacing: .06em; text-transform: uppercase;
  padding: .25rem .5rem; border-radius: 2px; white-space: nowrap;
  background: var(--panel); color: var(--ink-soft);
}
.coitem .pill.s { background: rgba(176,106,44,.12); color: var(--amber-deep); }
@media (max-width: 38rem) {
  .coitem { grid-template-columns: 2.2rem 1fr; }
  .coitem .pill { grid-column: 2; justify-self: start; }
}

/* ---------- Beam cross-section SVG accent ---------- */
.beam { width: 100%; height: auto; }

/* ---------- Generic content blocks for guide pages ---------- */
.feature-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin: 1.6rem 0;
}
.feature-grid .fg {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--paper); padding: 1.1rem 1.2rem;
}
.feature-grid .fg h4 { margin: 0 0 .4rem; color: var(--ink); border: 0; padding: 0;
  font-family: var(--serif); font-size: 1.08rem; letter-spacing: 0; text-transform: none; }
.feature-grid .fg p { margin: 0; font-size: .92rem; color: var(--ink-soft); }
@media (max-width: 38rem) { .feature-grid { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.foot {
  background: var(--slate-deep);
  color: #b9c4ca;
  margin-top: 0;
  border-top: 2px solid var(--amber);
}
.foot .wrap { padding-top: 2.6rem; padding-bottom: 2.2rem; }
.foot .top {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem;
  padding-bottom: 1.8rem; border-bottom: 1px solid rgba(255,255,255,.1);
}
.foot .brand {
  font-family: var(--serif); font-weight: 600; font-size: 1.5rem; color: #fff;
  display: inline-block; line-height: 1;
}
.foot .brand .amp { color: var(--amber-soft); font-style: italic; }
.foot .blurb { font-size: .88rem; line-height: 1.55; margin: .9rem 0 0; max-width: 22rem; }
.foot h5 {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase;
  color: #fff; margin: 0 0 .9rem; font-weight: 500;
}
.foot ul { list-style: none; margin: 0; padding: 0; font-size: .88rem; }
.foot li { margin-bottom: .5rem; }
.foot a { color: #b9c4ca; }
.foot a:hover { color: #fff; }
.foot .legal {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding-top: 1.5rem; font-family: var(--mono); font-size: .68rem; letter-spacing: .06em;
  color: #7e8c93; text-transform: uppercase;
}
@media (max-width: 52rem) {
  .foot .top { grid-template-columns: 1fr 1fr; gap: 1.6rem; }
}
@media (max-width: 34rem) {
  .foot .top { grid-template-columns: 1fr; }
}

/* ---------- Utility ---------- */
.muted { color: var(--ink-faint); }
.center { text-align: center; }
.small { font-size: .86rem; }
hr.rule { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }
.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--ink); color: #fff; padding: .6rem 1rem; z-index: 100;
  font-family: var(--mono); font-size: .8rem;
}
.skip:focus { left: .5rem; top: .5rem; }

/* ---------- Language switcher (bilingual) ---------- */
.topstrip .ts-right { display: inline-flex; align-items: center; gap: .9rem; white-space: nowrap; }
.langsw {
  color: #e7edf0; border: 1px solid #3a4a52; border-radius: 3px;
  padding: .04rem .42rem; text-decoration: none; letter-spacing: .12em;
}
.langsw:hover, .langsw:focus { border-color: var(--amber-soft); color: #fff; }

/* --- header logo (glulam mark) --- */
.masthead .brand {
  display: inline-flex;
  align-items: center;
  gap: .62rem;
}
.masthead .brand-logo {
  width: clamp(2.1rem, 4vw, 2.7rem);
  height: auto;
  flex: none;
  border-radius: 7px;
}