:root {
  --chalk: #e9ecee;
  --card: #f8f9fa;
  --ink: #15181b;
  --steel: #5f676f;
  --rule: #cdd2d6;
  --platform: #1a1d20;
  --platform-ink: #f3f4f5;
  --accent: #1e4fa0;
  --accent-soft: #dbe4f3;
  --good: #ffffff;
  --no: #e0202e;
  --plate-red: #d22630;
  --plate-blue: #1e4fa0;
  --plate-yellow: #f2be22;
  --plate-green: #2f8a4c;
  --plate-white: #f1f1ee;
  --plate-black: #2a2d31;
  --plate-chrome: #c3c9cf;
  --display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --body: "Archivo", system-ui, sans-serif;
  --mono: "Martian Mono", ui-monospace, monospace;
  --radius: 10px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --chalk: #111315;
    --card: #1a1d20;
    --ink: #e8eaec;
    --steel: #9aa3ab;
    --rule: #2e3338;
    --platform: #0a0b0c;
    --accent: #7ea6ec;
    --accent-soft: #1d2a40;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--chalk);
  color: var(--ink);
  font: 400 16px/1.5 var(--body);
}

a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible, [role="option"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Masthead */
.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 20px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 800 22px/1 var(--display);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}
.lights { display: inline-flex; gap: 4px; padding: 4px 6px; background: var(--platform); border-radius: 99px; }
.lights i { width: 9px; height: 9px; border-radius: 50%; background: var(--good); box-shadow: 0 0 6px rgba(255, 255, 255, 0.7); }
.lights i:nth-child(3) { background: var(--no); box-shadow: 0 0 6px rgba(224, 32, 46, 0.8); }
.masthead nav { display: flex; gap: 18px; font-weight: 500; }
.masthead nav a { color: var(--ink); text-decoration: none; }
.masthead nav a:hover { color: var(--accent); }

main { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Intro */
.intro { padding: 28px 0 32px; max-width: 760px; }
.intro h1 {
  margin: 0 0 14px;
  font: 800 clamp(40px, 6.4vw, 76px)/0.94 var(--display);
  text-transform: uppercase;
  letter-spacing: 0.005em;
}
.intro p { margin: 0; font-size: 18px; color: var(--steel); max-width: 600px; }

/* Tool grid */
.tool {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  grid-template-areas:
    "today platform"
    "lifter options";
  gap: 16px;
  align-items: start;
}
.today { grid-area: today; }
.platform { grid-area: platform; }
.options { grid-area: options; }
.lifter { grid-area: lifter; }

.panel {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 18px;
}
.panel-title {
  margin: 0;
  font: 800 22px/1 var(--display);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Today: attempt cards */
.attempts { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 10px; }
.attempt {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--chalk);
}
.attempt-no { font: 900 30px/1 var(--display); color: var(--steel); }
.attempt.is-next { grid-template-columns: 36px minmax(0, 1fr); border-color: var(--accent); background: var(--accent-soft); }
.attempt.is-next .attempt-actions { grid-column: 2; }
.attempt.is-next .judge { flex: 1; justify-content: center; }
.attempt.is-next .unit-input { margin-top: 6px; }
.attempt.is-next .attempt-no { color: var(--accent); }
.attempt.is-later { opacity: 0.55; }
.attempt-body { min-width: 0; }
.attempt-label { margin: 0; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--steel); }
.attempt-weight { margin: 0; font: 500 17px/1.3 var(--mono); }
.attempt-actions { display: flex; gap: 6px; }

.judge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 0 10px;
  border: 1px solid var(--rule);
  border-radius: 99px;
  background: var(--card);
  color: var(--ink);
  font: 600 13px/1 var(--body);
  cursor: pointer;
}
.judge .dot { width: 12px; height: 12px; border-radius: 50%; border: 1px solid var(--steel); background: var(--good); }
.judge.no .dot { background: var(--no); border-color: var(--no); }
.judge:hover { border-color: var(--ink); }
.result-lights { display: inline-flex; gap: 4px; padding: 5px 7px; border-radius: 99px; background: var(--platform); }
.result-lights i { width: 11px; height: 11px; border-radius: 50%; }
.result-lights.good i { background: var(--good); box-shadow: 0 0 6px rgba(255, 255, 255, 0.75); }
.result-lights.no i { background: var(--no); box-shadow: 0 0 6px rgba(224, 32, 46, 0.85); }
.link-btn {
  border: 0;
  background: none;
  padding: 4px;
  color: var(--steel);
  font: 500 13px/1 var(--body);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

/* Platform: the signature */
.platform {
  background: var(--platform);
  color: var(--platform-ink);
  border-radius: var(--radius);
  padding: 22px 24px 18px;
  overflow: hidden;
  background-image: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.025) 0 2px, transparent 2px 120px);
}
.platform-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; }
.eyebrow { margin: 0 0 4px; font: 500 12px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.12em; color: #9aa3ab; }
.big-weight, .big-odds { margin: 0; font: 900 clamp(56px, 9vw, 104px)/0.85 var(--display); font-variant-numeric: tabular-nums; }
.big-weight small { font-size: 0.32em; font-weight: 600; margin-left: 6px; color: #9aa3ab; }
.odds { text-align: right; }
.big-odds { color: var(--good); }
.big-weight.is-empty, .big-odds.is-empty { color: #4a5057; }
.platform-note em { display: block; margin-bottom: 4px; font-style: normal; color: var(--plate-yellow); font-size: 13px; }
.barbell { display: block; width: 100%; height: auto; margin: 14px 0 6px; }
.platform-note { margin: 0; min-height: 3em; color: #c9cfd4; font-size: 15px; max-width: 640px; }
.platform-note strong { color: var(--platform-ink); }

.plate { transform-box: fill-box; }
@media (prefers-reduced-motion: no-preference) {
  .plate { animation: load 420ms cubic-bezier(0.2, 0.8, 0.2, 1) both; }
  .plate.left { animation-name: load-left; }
  @keyframes load { from { transform: translateX(60px); opacity: 0; } }
  @keyframes load-left { from { transform: translateX(-60px); opacity: 0; } }
}

/* Options list */
.options-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }
.step { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--steel); }
.option-list { display: grid; gap: 4px; max-height: 560px; overflow-y: auto; padding-right: 2px; }
.option {
  display: grid;
  grid-template-columns: 96px 54px minmax(60px, 1fr) 56px minmax(84px, auto);
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: none;
  color: var(--ink);
  text-align: left;
  font: inherit;
  cursor: pointer;
}
.option:hover { background: var(--chalk); }
.option[aria-selected="true"] { border-color: var(--accent); background: var(--accent-soft); }
.opt-weight { font: 800 24px/1 var(--display); font-variant-numeric: tabular-nums; }
.opt-weight small { font: 500 12px var(--body); color: var(--steel); margin-left: 3px; }
.opt-meta { font: 400 12px/1.2 var(--mono); color: var(--steel); }
.bar { position: relative; height: 10px; border-radius: 99px; background: var(--rule); overflow: hidden; }
.bar span { position: absolute; inset: 0 auto 0 0; border-radius: 99px; background: var(--ink); }
.opt-odds { font: 500 15px/1 var(--mono); text-align: right; font-variant-numeric: tabular-nums; }
.opt-extra { font: 400 12px/1.25 var(--mono); color: var(--steel); text-align: right; }
.tag {
  display: inline-block;
  margin-top: 3px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--plate-yellow);
  color: #1a1a1a;
  font: 600 10px/1.3 var(--body);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.option-head { display: grid; grid-template-columns: 96px 54px minmax(60px, 1fr) 56px minmax(84px, auto); gap: 12px; padding: 0 10px 6px; font: 500 11px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--steel); }
.option-head span:nth-child(4), .option-head span:nth-child(5) { text-align: right; }
.empty { margin: 0; padding: 18px 4px; color: var(--steel); }

/* Lifter form */
.lifter summary { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; list-style: none; cursor: pointer; }
.lifter summary::-webkit-details-marker { display: none; }
.lifter summary::after { content: "Edit"; font-size: 13px; color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.lifter[open] summary::after { content: "Hide"; }
.lifter-summary { flex: 1; font: 400 12px/1.3 var(--mono); color: var(--steel); text-align: right; }
.lifter-form { display: grid; gap: 14px; margin-top: 16px; }
.seg { display: flex; gap: 0; margin: 0; padding: 0; border: 0; flex-wrap: wrap; }
.seg legend { width: 100%; margin-bottom: 6px; font-size: 13px; font-weight: 600; }
.seg label {
  flex: 1;
  position: relative;
  padding: 9px 6px;
  border: 1px solid var(--rule);
  margin-left: -1px;
  text-align: center;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  background: var(--card);
}
.seg label:first-of-type { border-radius: 7px 0 0 7px; margin-left: 0; }
.seg label:last-of-type { border-radius: 0 7px 7px 0; }
.seg input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.seg label:has(input:checked) { background: var(--ink); color: var(--card); border-color: var(--ink); z-index: 1; }
.seg label:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; z-index: 2; }
.field { display: grid; gap: 6px; font-size: 13px; font-weight: 600; }
.field small { font-weight: 400; color: var(--steel); }
.opt { font-weight: 400; color: var(--steel); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
input[type="number"], select {
  width: 100%;
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid var(--rule);
  border-radius: 7px;
  background: var(--card);
  color: var(--ink);
  font: 500 15px var(--mono);
}
.step select { width: auto; min-height: 32px; padding: 4px 8px; font-size: 13px; }
.unit-input { display: flex; align-items: center; gap: 8px; }
.unit-input span { font-weight: 500; color: var(--steel); }
.best input { font-size: 18px; }
.checks { display: grid; gap: 8px; font-size: 14px; }
.checks label { display: flex; gap: 8px; align-items: center; cursor: pointer; }
.checks input { width: 18px; height: 18px; accent-color: var(--ink); }
.attempt-input { width: 140px; min-height: 40px; font-size: 18px; }

/* Reading + findings */
.reading, .findings { padding: 56px 0 0; }
.reading h2, .findings h2 {
  margin: 0 0 18px;
  font: 800 clamp(28px, 3.6vw, 40px)/1 var(--display);
  text-transform: uppercase;
}
.reading-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.reading-grid p { margin: 0; color: var(--steel); }
.reading-grid strong { display: block; margin-bottom: 4px; color: var(--ink); }
.finding-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.finding-grid article { padding: 18px; border-top: 4px solid var(--ink); background: var(--card); border-radius: 0 0 var(--radius) var(--radius); }
.finding-grid article:nth-child(1) { border-top-color: var(--plate-red); }
.finding-grid article:nth-child(2) { border-top-color: var(--plate-blue); }
.finding-grid article:nth-child(3) { border-top-color: var(--plate-yellow); }
.finding-grid article:nth-child(4) { border-top-color: var(--plate-green); }
.stat { margin: 0 0 6px; font: 900 52px/0.9 var(--display); }
.finding-grid h3 { margin: 0 0 6px; font-size: 16px; }
.finding-grid p:last-child { margin: 0; color: var(--steel); font-size: 15px; }
.paper-link { margin: 20px 0 0; font-size: 17px; }

.colophon { max-width: 1200px; margin: 56px auto 0; padding: 22px 20px 40px; border-top: 1px solid var(--rule); color: var(--steel); font-size: 14px; }
.colophon p { margin: 0 0 8px; max-width: 820px; }

/* Responsive */
@media (max-width: 900px) {
  .tool {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "platform" "today" "options" "lifter";
  }
  .reading-grid { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .finding-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .masthead { padding: 14px 16px; }
  .masthead nav { gap: 12px; font-size: 14px; }
  main { padding: 0 16px; }
  .intro { padding: 12px 0 22px; }
  .intro p { font-size: 16px; }
  .platform { padding: 18px 16px 14px; }
  .panel { padding: 14px; }
  .option, .option-head { grid-template-columns: 78px 44px minmax(40px, 1fr) 48px; gap: 8px; }
  .opt-extra, .option-head span:nth-child(5) { grid-column: 1 / -1; text-align: left; }
  .option-head span:nth-child(5) { display: none; }
  .opt-extra:empty { display: none; }
  .finding-grid { grid-template-columns: minmax(0, 1fr); }
  .wordmark { font-size: 19px; }
}