/* ============================================================
   LEON — mid-century sleeve palette
   ============================================================ */
:root {
  --ink:      #14110f;
  --paper:    #efe7d6;
  --paper-2:  #e3d8c2;
  --hot:      #d8542a;   /* burnt orange */
  --gold:     #e0a325;
  --teal:     #2e6b6b;
  --rule:     4px;

  /* -- PHOTO TREATMENT ------------------------------------------------
     Dial the duotone/halftone back by lowering --photo-duotone toward 0
     (0 = untreated original frame, 1 = full sleeve treatment).
     Everything below keys off this one number.                        */
  --photo-duotone: 1;
  --photo-contrast: calc(100% + 55% * var(--photo-duotone));
  --photo-grain: calc(0.42 * var(--photo-duotone));
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 16px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

/* paper grain over the whole page */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: .5;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='4'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='.34'/%3E%3C/svg%3E");
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 28px; }

h1, h2, h3, .display {
  font-family: "Oswald", "Archivo Narrow", Impact, sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .01em;
  line-height: .92;
  margin: 0;
}

a { color: var(--hot); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: var(--ink);
  color: var(--paper);
  padding: 74px 0 0;
  border-bottom: var(--rule) solid var(--ink);
  overflow: hidden;
}

.kicker {
  font-size: 12px;
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 26px;
}

.hero h1 {
  font-size: clamp(58px, 15.5vw, 188px);
  color: var(--paper);
  position: relative;
}

/* offset-print misregistration */
.hero h1 .mis {
  position: relative;
  display: inline-block;
}
.hero h1 .mis::before {
  content: attr(data-t);
  position: absolute;
  left: -5px; top: 3px;
  color: var(--hot);
  mix-blend-mode: screen;
  opacity: .92;
  z-index: -1;
}

.hero .sub {
  font-family: "Oswald", sans-serif;
  font-size: clamp(19px, 3.6vw, 33px);
  text-transform: uppercase;
  color: var(--gold);
  margin: 16px 0 0;
  letter-spacing: .015em;
}

.story {
  max-width: 62ch;
  margin: 38px 0 0;
  font-size: 17px;
  color: #d9cfbb;
  padding-bottom: 66px;
}
.story strong { color: var(--paper); font-weight: 500; }

/* ============================================================
   SECTIONS
   ============================================================ */
section { padding: 78px 0; border-bottom: var(--rule) solid var(--ink); }
section:last-of-type { border-bottom: 0; }

.sec-head {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 12px;
}
.num {
  font-family: "Oswald", sans-serif;
  font-size: clamp(52px, 9vw, 104px);
  line-height: .8;
  color: var(--hot);
  font-weight: 700;
}
.sec-head h2 { font-size: clamp(28px, 5.4vw, 56px); }

.lede { max-width: 66ch; margin: 20px 0 42px; font-size: 16.5px; }
.note { max-width: 66ch; margin: 22px 0 0; font-size: 14.5px; opacity: .78; }

/* ============================================================
   FILMSTRIP
   ============================================================ */
.strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: var(--rule) solid var(--ink);
  background: var(--ink);
}
.frame { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.frame + .frame { border-left: var(--rule) solid var(--ink); }

.frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 32% 62%;      /* bias toward hands on the keys */
  display: block;
  filter:
    grayscale(1)
    contrast(var(--photo-contrast))
    brightness(calc(100% - 6% * var(--photo-duotone)));
}
/* duotone wash */
.frame::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, var(--teal), var(--hot));
  mix-blend-mode: color;
  opacity: var(--photo-duotone);
}
/* halftone dots */
.frame::before {
  content: "";
  position: absolute; inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: var(--photo-grain);
  mix-blend-mode: overlay;
  background-image: radial-gradient(circle at 50% 50%, #000 1.1px, transparent 1.4px);
  background-size: 4px 4px;
}
.frame .tc {
  position: absolute;
  left: 0; bottom: 0;
  z-index: 3;
  background: var(--gold);
  color: var(--ink);
  font-size: 11px;
  letter-spacing: .16em;
  padding: 5px 10px;
  font-weight: 700;
}

/* ============================================================
   AUDIO STEPS
   ============================================================ */
.steps { display: grid; gap: 26px; }

.step {
  border: var(--rule) solid var(--ink);
  background: var(--paper-2);
  padding: 26px 28px 24px;
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 4px 22px;
}
.step .n {
  font-family: "Oswald", sans-serif;
  font-size: 46px;
  line-height: .82;
  color: var(--hot);
  font-weight: 700;
}
.step h3 { font-size: 25px; margin-bottom: 7px; }
.step p { margin: 0 0 16px; font-size: 15px; max-width: 60ch; }
.step .player { grid-column: 2; }
.step audio { width: 100%; max-width: 560px; display: block; }

/* the payoff */
.step.final {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: 9px 9px 0 var(--hot);
}
.step.final h3 { color: var(--gold); font-size: 34px; }
.step.final .n { color: var(--gold); }
.step.final p { color: #d9cfbb; }

.hp {
  display: inline-block;
  background: var(--ink);
  color: var(--gold);
  font-size: 11px;
  letter-spacing: .17em;
  padding: 4px 9px;
  margin-bottom: 13px;
  font-weight: 700;
}

/* ============================================================
   DATA / FACTS
   ============================================================ */
.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(178px, 1fr));
  gap: 0;
  border: var(--rule) solid var(--ink);
  margin: 8px 0 40px;
}
.fact { padding: 22px 20px; border-right: var(--rule) solid var(--ink); }
.fact:last-child { border-right: 0; }
.fact .v {
  font-family: "Oswald", sans-serif;
  font-size: 38px;
  font-weight: 700;
  color: var(--hot);
  line-height: 1;
}
.fact .k {
  font-size: 11.5px;
  letter-spacing: .15em;
  text-transform: uppercase;
  margin-top: 9px;
  opacity: .75;
}

/* pitch-set bars */
.bars { margin: 34px 0 0; max-width: 620px; }
.bar { display: grid; grid-template-columns: 40px 1fr 58px; align-items: center; gap: 14px; margin-bottom: 9px; }
.bar .lbl { font-weight: 700; font-size: 17px; }
.bar .track { background: var(--paper-2); height: 21px; border: 2px solid var(--ink); }
.bar .fill { background: var(--hot); height: 100%; }
.bar.blue .fill { background: var(--teal); }
.bar .pct { font-size: 13px; text-align: right; opacity: .8; }

/* ============================================================
   TABLES
   ============================================================ */
table { border-collapse: collapse; width: 100%; max-width: 620px; margin: 26px 0 0; font-size: 15px; }
th, td { border: 2px solid var(--ink); padding: 10px 13px; text-align: left; }
thead th { background: var(--ink); color: var(--paper); font-family: "Oswald", sans-serif; text-transform: uppercase; letter-spacing: .07em; }
tbody th { background: var(--paper-2); font-weight: 700; width: 78px; }

/* ============================================================
   NOTATION
   ============================================================ */
.chart {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: var(--rule) solid var(--ink);
  margin: 6px 0 44px;
  background: var(--paper-2);
}
.chart .cell { padding: 30px 18px; border-right: var(--rule) solid var(--ink); text-align: center; }
.chart .cell:last-child { border-right: 0; }
.chart .chd {
  font-family: "Oswald", sans-serif;
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700;
}
.chart .slash { margin-top: 10px; font-size: 20px; letter-spacing: .34em; opacity: .5; }
.chart .bar-n { font-size: 11px; letter-spacing: .18em; opacity: .6; margin-bottom: 12px; }

.score {
  border: var(--rule) solid var(--ink);
  background: var(--paper-2);
  padding: 22px 10px;
  overflow-x: auto;
}
.score svg { display: block; margin: 0 auto; }

.voicings { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; margin-top: 40px; }
.vc { border: 3px solid var(--ink); padding: 18px 20px; }
.vc h4 { margin: 0 0 12px; font-family: "Oswald", sans-serif; font-size: 21px; text-transform: uppercase; }
.vc dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 7px 14px; font-size: 14px; }
.vc dt { font-weight: 700; color: var(--hot); }
.vc dd { margin: 0; letter-spacing: .06em; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--ink);
  color: var(--paper);
  padding: 82px 0 66px;
  text-align: center;
}
footer .credit {
  font-family: "Oswald", sans-serif;
  font-size: clamp(28px, 6vw, 60px);
  text-transform: uppercase;
  color: var(--gold);
  line-height: 1;
}
footer .sm { font-size: 13.5px; color: #a99e8c; margin-top: 26px; max-width: 54ch; margin-inline: auto; }
footer .sm a { color: var(--gold); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 780px) {
  .strip { grid-template-columns: 1fr; }
  .frame + .frame { border-left: 0; border-top: var(--rule) solid var(--ink); }
  .frame { aspect-ratio: 16/9; }
  .step { grid-template-columns: 1fr; }
  .step .player { grid-column: 1; }
  .step .n { font-size: 34px; }
  .chart { grid-template-columns: repeat(2, 1fr); }
  .chart .cell:nth-child(2) { border-right: 0; }
  .chart .cell:nth-child(1), .chart .cell:nth-child(2) { border-bottom: var(--rule) solid var(--ink); }
  .fact { border-right: 0; border-bottom: var(--rule) solid var(--ink); }
  .fact:last-child { border-bottom: 0; }
}

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