/* =========================================================
   Typeset — the importance of typography in web design
   Rail + specimen layout — distinct from the editorial-almanac style
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,600;9..144,700;9..144,900&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --bg:      #FFFFFF;
  --bg-soft: #F5F4F1;
  --ink:     #111111;
  --ink-soft:#6E6A64;
  --line:    #E4E1D9;
  --accent:  #1F4FFF;
  --accent-warm: #E0562B;

  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

::selection{ background: var(--accent); color: #fff; }
:focus-visible{ outline: 2px solid var(--accent); outline-offset: 3px; }

/* -------------------- layout shell -------------------- */
.layout{
  display: grid;
  grid-template-columns: 72px 1fr;
  min-height: 100vh;
}

@media (max-width: 760px){
  .layout{ grid-template-columns: 1fr; }
}

.rail{
  position: sticky;
  top: 0;
  height: 100vh;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  background: var(--bg-soft);
}

@media (max-width: 760px){
  .rail{ display: none; }
}

.rail-mark{
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.4rem;
}

.rail-nav{
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.rail-nav a{
  writing-mode: vertical-rl;
  text-decoration: none;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  transition: color 0.15s ease;
}

.rail-nav a:hover{ color: var(--accent); }

.rail-foot{
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--ink-soft);
}

.stage{
  max-width: 980px;
  padding: 0 40px;
}

@media (max-width: 760px){
  .stage{ padding: 0 24px; }
}

/* -------------------- cover -------------------- */
.cover{
  padding: 100px 0 60px;
  position: relative;
}

.cover-eyebrow{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin: 0 0 24px;
}

.cover-title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.05;
  margin: 0 0 28px;
  display: flex;
  flex-direction: column;
  letter-spacing: -0.01em;
}

.cover-title-em{
  font-style: italic;
  font-weight: 400;
  color: var(--accent-warm);
}

.cover-sub{
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 0;
}

.cover-specimen{
  position: absolute;
  right: 0;
  top: 60px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 12rem;
  line-height: 1;
  color: var(--bg-soft);
  z-index: -1;
  user-select: none;
}

@media (max-width: 900px){
  .cover-specimen{ display: none; }
}

/* -------------------- stat bar -------------------- */
.stat-bar{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

@media (min-width: 700px){
  .stat-bar{ grid-template-columns: repeat(4, 1fr); }
}

.stat{
  background: var(--bg);
  padding: 26px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-num{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.7rem;
  color: var(--accent);
}

.stat-label{
  font-size: 0.85rem;
  color: var(--ink-soft);
  line-height: 1.4;
}

/* -------------------- feature sections -------------------- */
.feature{
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 24px;
  padding: 64px 0;
  border-top: 1px solid var(--line);
  align-items: start;
}

@media (min-width: 760px){
  .feature{ grid-template-columns: 60px 1fr 1fr; }
}

.feature-index{
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-soft);
  grid-row: 1;
}

.feature-body h2{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.65rem;
  line-height: 1.25;
  margin: 0 0 18px;
  max-width: 26ch;
}

.feature-body p{
  color: var(--ink-soft);
  max-width: 54ch;
  margin: 0 0 14px;
}

.feature-body p:last-child{ margin-bottom: 0; }

@media (min-width: 760px){
  .feature.reverse .feature-body{ order: 2; }
  .feature.reverse .feature-index{ order: 1; }
}

/* specimen blocks */
.feature-specimen{
  display: flex;
  align-items: baseline;
  gap: 24px;
  justify-content: center;
  padding: 20px 0;
  border-left: 1px solid var(--line);
  padding-left: 32px;
}

@media (max-width: 759px){
  .feature-specimen{ border-left: none; padding-left: 0; grid-column: 1 / -1; }
}

.spec-big{ font-family: var(--font-display); font-weight: 700; font-size: 5rem; }
.spec-mid{ font-family: var(--font-display); font-weight: 500; font-size: 3rem; color: var(--ink-soft); }
.spec-small{ font-family: var(--font-display); font-weight: 400; font-size: 1.6rem; color: var(--ink-soft); }

.feature-scale{
  border-left: 1px solid var(--line);
  padding-left: 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

@media (max-width: 759px){
  .feature-scale{ border-left: none; padding-left: 0; grid-column: 1 / -1; }
}

.scale-row{ font-family: var(--font-display); }

.feature-compare{
  display: flex;
  flex-direction: column;
  gap: 20px;
  border-left: 1px solid var(--line);
  padding-left: 32px;
}

@media (max-width: 759px){
  .feature-compare{ border-left: none; padding-left: 0; grid-column: 1 / -1; }
}

.compare-label{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin: 0 0 8px;
}

.compare-text-bad{
  font-size: 0.85rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: #B7B2A6;
  background: var(--bg-soft);
  padding: 16px;
  margin: 0;
  border-radius: 2px;
}

.compare-text-good{
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg-soft);
  padding: 16px;
  margin: 0;
  border-radius: 2px;
  border-left: 2px solid var(--accent);
}

.feature-voices{
  display: flex;
  flex-direction: column;
  gap: 18px;
  border-left: 1px solid var(--line);
  padding-left: 32px;
}

@media (max-width: 759px){
  .feature-voices{ border-left: none; padding-left: 0; grid-column: 1 / -1; }
}

.voice-sample{
  margin: 0;
  padding: 16px 18px;
  background: var(--bg-soft);
  font-size: 1.15rem;
}

.voice-modern{ font-family: var(--font-body); font-weight: 600; }
.voice-editorial{ font-family: var(--font-display); font-weight: 700; }
.voice-friendly{ font-family: var(--font-body); font-weight: 500; font-style: italic; border-radius: 12px; }

.feature-tokens{
  border-left: 1px solid var(--line);
  padding-left: 32px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

@media (max-width: 759px){
  .feature-tokens{ border-left: none; padding-left: 0; grid-column: 1 / -1; }
}

.token{
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 10px 12px;
  background: var(--bg-soft);
}

.token span:first-child{ color: var(--ink-soft); }
.token span:last-child{ color: var(--accent); }

/* -------------------- closing -------------------- */
.closing{
  border-top: 1px solid var(--line);
  padding: 70px 0 110px;
  text-align: center;
}

.closing-kicker{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-warm);
  margin: 0 0 20px;
}

.closing-line{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  line-height: 1.35;
  margin: 0 auto;
  max-width: 30ch;
}

/* -------------------- footer -------------------- */
.site-footer{
  border-top: 1px solid var(--line);
  padding: 22px 0 60px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}