/* ============================================================
   Nature Integrity Calculator — Field-Notebook System
   ============================================================ */

:root {
  --paper: oklch(0.96 0.012 82);
  --paper-deep: oklch(0.93 0.018 82);
  --paper-edge: oklch(0.88 0.025 78);
  --ink: oklch(0.22 0.05 250);
  --ink-soft: oklch(0.42 0.04 250);
  --ink-fade: oklch(0.65 0.025 250);
  --rule: oklch(0.82 0.02 82);
  --grid: oklch(0.85 0.025 82 / 0.55);

  --teal: oklch(0.62 0.115 200);
  --teal-deep: oklch(0.42 0.085 215);
  --coral: #ff7a92; /* Handprint pink — was orange-coral oklch(0.68 0.165 28) */
  --kelp: oklch(0.52 0.095 148);
  --sun: oklch(0.78 0.13 75);

  --ff-serif: "Newsreader", "Source Serif 4", Georgia, serif;
  --ff-sans: "Geist", "Inter", system-ui, sans-serif;
  --ff-mono: "JetBrains Mono", ui-monospace, monospace;

  --shadow-page: 0 24px 60px -28px oklch(0.2 0.04 250 / 0.35),
                 0 8px 18px -10px oklch(0.2 0.04 250 / 0.18);
}

[data-palette="kelp"] {
  --teal: oklch(0.58 0.105 158);
  --teal-deep: oklch(0.4 0.08 158);
  --kelp: oklch(0.52 0.1 148);
}
[data-palette="coral"] {
  --teal: oklch(0.68 0.155 32);
  --teal-deep: oklch(0.45 0.12 28);
  --coral: #ff5a78; /* deeper Handprint pink for coral palette variant */
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--ff-sans);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "cv11";
  overflow-x: hidden;
}

/* Paper texture: warm pulp with subtle fibers */
.paper-bg {
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(1200px 800px at 20% -10%, oklch(0.98 0.01 82) 0%, transparent 60%),
    radial-gradient(900px 700px at 110% 100%, oklch(0.92 0.02 75) 0%, transparent 55%),
    var(--paper);
}
.paper-bg::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 13% 22%, oklch(0.85 0.03 60 / 0.18) 0 1px, transparent 1.5px),
    radial-gradient(circle at 67% 48%, oklch(0.7 0.05 50 / 0.12) 0 1px, transparent 1.5px),
    radial-gradient(circle at 41% 81%, oklch(0.8 0.04 70 / 0.14) 0 1px, transparent 1.5px),
    radial-gradient(circle at 85% 12%, oklch(0.78 0.04 55 / 0.16) 0 1px, transparent 1.5px),
    radial-gradient(circle at 28% 65%, oklch(0.82 0.03 65 / 0.12) 0 1px, transparent 1.5px);
  background-size: 320px 320px, 280px 280px, 240px 240px, 360px 360px, 200px 200px;
  mix-blend-mode: multiply;
  opacity: .85;
  pointer-events: none;
}
.paper-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: .55;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 85%);
  pointer-events: none;
}

/* App layout: desktop canvas only */
.app-root {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 100vh;
  gap: 0;
}

/* ============================================================
   Desktop canvas
   ============================================================ */
.desktop-stage {
  position: relative;
  padding: 28px 40px 80px;
  min-height: 100vh;
  overflow: hidden;
  max-width: 1320px;
  margin: 0 auto;
  width: 100%;
}

.notebook-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 22px;
}
.brand-mark {
  display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.brand-mark__logo {
  display: block;
  height: 28px;
  width: auto;
  max-width: 100%;
}

.meta-strip {
  display: flex; gap: 24px;
  font-family: var(--ff-mono);
  font-size: 10.5px;
  color: var(--ink-fade);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
.meta-strip strong { color: var(--ink); font-weight: 500; }

/* Stamps + decorations */
.stamp {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid currentColor;
  padding: 4px 10px;
  border-radius: 2px;
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transform: rotate(-1.2deg);
  position: relative;
}
.stamp::before {
  content: ""; position: absolute; inset: -3px;
  border: 1px dashed currentColor;
  opacity: 0.35;
  border-radius: 2px;
}
.stamp--coral { color: var(--coral); }
.stamp--teal { color: var(--teal-deep); }
.stamp--kelp { color: var(--kelp); }

/* Hand-drawn callout arrow */
.callout {
  font-family: var(--ff-serif);
  font-style: italic;
  color: var(--ink-soft);
  font-size: 14px;
  position: relative;
}

/* ============================================================
   Screen container
   ============================================================ */
.screen {
  animation: screenIn 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}
@keyframes screenIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Progress ruler — segmented, with title above each step */
.progress-ruler {
  display: grid;
  grid-template-columns: repeat(var(--steps, 3), 1fr);
  gap: 12px;
  margin-bottom: 18px;
}
.progress-step {
  min-width: 0;
}
.progress-step__num {
  font-family: var(--ff-mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-fade);
  margin-bottom: 4px;
}
.progress-step__title {
  font-family: var(--ff-serif);
  font-size: 14.5px;
  color: var(--ink-fade);
  line-height: 1.2;
  margin-bottom: 8px;
  letter-spacing: 0;
}
.progress-step[data-status="active"] .progress-step__num { color: var(--teal-deep); }
.progress-step[data-status="active"] .progress-step__title { color: var(--ink); font-style: italic; }
.progress-step[data-status="done"]   .progress-step__num   { color: var(--ink-soft); }
.progress-step[data-status="done"]   .progress-step__title { color: var(--ink-soft); }
.progress-step__bar {
  height: 5px;
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  border-radius: 2px;
}
.progress-step[data-status="done"] .progress-step__bar {
  background: var(--teal-deep);
  border-color: var(--teal-deep);
}
.progress-step[data-status="active"] .progress-step__bar {
  background: repeating-linear-gradient(
    -45deg,
    var(--teal-deep) 0 4px,
    var(--teal) 4px 8px
  );
  border-color: var(--teal-deep);
}

/* Live equation bar */
.live-eq {
  margin: 0 0 22px;
  padding: 12px 16px 14px;
  border: 1px dashed var(--rule);
  border-radius: 4px;
  background: var(--paper);
}
.live-eq__head {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-fade);
  margin-bottom: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: baseline;
}
.live-eq__sep { color: var(--rule); }
.live-eq__head strong {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0;
  color: var(--ink);
  text-transform: none;
}
.live-eq__amount--partial { color: var(--ink-soft) !important; }
.live-eq__amount--ready   { color: var(--teal-deep) !important; }
.live-eq__hint {
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-fade);
  margin-left: 6px;
}
.live-eq__pills {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.live-eq__pill {
  font-family: var(--ff-mono);
  font-size: 11px;
  padding: 6px 10px;
  border-radius: 3px;
  border: 1px solid var(--rule);
  color: var(--ink-fade);
  background: var(--paper);
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  transition: background .25s ease, color .25s ease, border-color .25s ease;
}
.live-eq__pill[data-filled="false"] {
  border-style: dashed;
}
.live-eq__pill-label {
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.75;
}
.live-eq__pill-value { font-size: 12px; letter-spacing: 0.02em; }
.live-eq__pill[data-filled="true"][data-tone="ink"]   { background: var(--ink);    color: var(--paper); border-color: var(--ink); }
.live-eq__pill[data-filled="true"][data-tone="coral"] { background: var(--coral);  color: var(--paper); border-color: var(--coral); }
.live-eq__pill[data-filled="true"][data-tone="teal"]  { background: var(--teal);   color: var(--paper); border-color: var(--teal); }
.live-eq__pill[data-filled="true"][data-tone="kelp"]  { background: var(--kelp);   color: var(--paper); border-color: var(--kelp); }
.live-eq__op {
  font-family: var(--ff-mono);
  font-size: 13px;
  color: var(--ink-fade);
  padding: 0 2px;
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  padding: 24px 8px 40px;
}
.hero__eyebrow {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 20px;
}
.hero__eyebrow::before {
  content: ""; width: 28px; height: 1px; background: var(--ink);
}
.hero h1 {
  font-family: var(--ff-serif);
  font-weight: 400;
  font-size: clamp(48px, 5.4vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
  color: var(--ink);
}
.hero h1 em {
  font-style: italic;
  color: var(--teal-deep);
  position: relative;
}
.hero h1 em::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -4px;
  height: 6px;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 10'><path d='M2 6 Q 30 1, 60 5 T 120 5 T 200 4' stroke='%23d97757' stroke-width='1.4' fill='none' stroke-linecap='round'/></svg>") repeat-x;
  opacity: .8;
}
.hero__lede {
  font-family: var(--ff-serif);
  font-size: 19px;
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 0 0 32px;
}
.hero__cta-row { display: flex; align-items: center; gap: 18px; }

/* Buttons — inked stamp style */
.btn {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 14px 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  position: relative;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 16px -8px var(--ink); }
.btn--primary {
  background: var(--ink); color: var(--paper);
  border-color: var(--ink);
}
.btn--primary:hover { background: var(--teal-deep); border-color: var(--teal-deep); }
.btn--ghost { border-color: var(--ink-fade); color: var(--ink); }
.btn--coral { background: var(--coral); color: var(--paper); border-color: var(--coral); }
.btn--small { padding: 10px 16px; font-size: 10px; }
.btn--icon { display: inline-flex; align-items: center; gap: 8px; }

/* Hero right side: equation specimen */
.equation-specimen {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 4px;
  padding: 24px 26px 28px;
  box-shadow: var(--shadow-page);
  transform: rotate(0.4deg);
}
.equation-specimen::before {
  content: "Fig. 01 — Transparent Equation";
  position: absolute; top: -10px; left: 18px;
  background: var(--paper);
  padding: 0 10px;
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* Animated equation */
.equation {
  display: flex; align-items: stretch; gap: 14px;
  font-family: var(--ff-mono);
  font-size: 14px;
}
.eq-term {
  flex: 1;
  border: 1px solid var(--ink);
  background: var(--paper-deep);
  padding: 14px 12px;
  display: flex; flex-direction: column; gap: 6px;
  border-radius: 3px;
  position: relative;
  min-width: 0;
}
.eq-term__label {
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-fade);
}
.eq-term__value {
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: 22px;
  color: var(--ink);
  line-height: 1;
}
.eq-term__sub {
  font-size: 10.5px;
  color: var(--ink-soft);
}
.eq-term--accent { border-color: var(--teal-deep); background: oklch(from var(--teal) l c h / 0.12); }
.eq-term--accent .eq-term__value { color: var(--teal-deep); }
.eq-term--coral { border-color: var(--coral); background: oklch(from var(--coral) l c h / 0.1); }
.eq-term--coral .eq-term__value { color: var(--coral); }

.eq-op {
  display: grid; place-items: center;
  font-family: var(--ff-serif);
  font-size: 26px;
  color: var(--ink);
  width: 18px;
  flex-shrink: 0;
}
.eq-op--arrow { color: var(--teal-deep); }

.equation-specimen__caption {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--rule);
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--ink-fade);
  text-transform: uppercase;
}

/* Particle ocean canvas behind hero right */
.ocean-canvas {
  position: absolute;
  inset: -40px -40px -20px 40%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

/* Hero specimen tape */
.tape {
  position: absolute;
  width: 92px; height: 22px;
  background: oklch(0.85 0.06 80 / 0.7);
  border: 1px solid oklch(0.7 0.06 80 / 0.4);
  top: -12px;
  left: 50%; transform: translateX(-50%) rotate(-2deg);
  box-shadow: 0 2px 6px -2px oklch(0.3 0.05 80 / 0.3);
}
.tape::before, .tape::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 6px;
  background-image: radial-gradient(circle at 50% 50%, transparent 0 1.2px, oklch(0.85 0.06 80 / 0.7) 1.2px);
  background-size: 4px 4px;
}
.tape::before { left: -3px; }
.tape::after { right: -3px; }

/* ============================================================
   Specimen card (the page-level container)
   ============================================================ */
.specimen {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 28px 30px;
  box-shadow: var(--shadow-page);
  position: relative;
}
.specimen + .specimen { margin-top: 22px; }
.specimen__title {
  font-family: var(--ff-serif);
  font-size: 28px;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 4px;
}
.specimen__desc {
  font-family: var(--ff-serif);
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.55;
  margin: 0 0 24px;
  max-width: 64ch;
}

/* ============================================================
   Form fields
   ============================================================ */
.field { display: flex; flex-direction: column; gap: 8px; }
.field__label {
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: flex; justify-content: space-between; align-items: baseline;
}
.field__label small { color: var(--ink-fade); text-transform: none; letter-spacing: 0; font-family: var(--ff-serif); font-style: italic; font-size: 12px; }
.field__input,
.field__select {
  font-family: var(--ff-serif);
  font-size: 22px;
  background: transparent;
  border: 0;
  border-bottom: 1.5px solid var(--ink);
  padding: 10px 0 8px;
  outline: none;
  color: var(--ink);
  width: 100%;
  appearance: none;
}
.field__input::placeholder { color: var(--ink-fade); font-style: italic; }
.field__input:focus,
.field__select:focus { border-color: var(--teal-deep); }

.field__select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'><path d='M1 1 L6 6 L11 1' stroke='%231a2640' stroke-width='1.2' fill='none' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 4px center;
  background-size: 12px 8px;
  padding-right: 26px;
}

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }

/* Range slider — calibrated dial */
.range {
  -webkit-appearance: none;
  width: 100%;
  background: transparent;
  height: 32px;
  cursor: pointer;
}
.range::-webkit-slider-runnable-track {
  height: 2px; background: var(--ink); border-radius: 0;
  background-image: repeating-linear-gradient(
    90deg, var(--ink) 0 1px, transparent 1px 12px
  ), linear-gradient(var(--ink), var(--ink));
  background-size: 100% 2px;
}
.range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px; height: 22px;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  margin-top: -10px;
  box-shadow: 0 4px 10px -4px var(--ink);
  position: relative;
}
.range::-moz-range-thumb {
  width: 22px; height: 22px;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  border-radius: 50%;
}
.range__row { display: flex; align-items: center; gap: 18px; }
.range__value {
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: 30px;
  min-width: 140px;
  text-align: right;
  color: var(--teal-deep);
}

/* Industry pills (selectable cards) */
.option-grid { display: grid; gap: 14px; }
.option-grid--3 { grid-template-columns: repeat(3, 1fr); }
.option-grid--2 { grid-template-columns: repeat(2, 1fr); }

.option-card {
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 18px 18px 22px;
  background: var(--paper);
  cursor: pointer;
  transition: transform .15s ease, border-color .2s ease, box-shadow .2s ease;
  position: relative;
  text-align: left;
  font-family: inherit;
  color: inherit;
}
.option-card:hover { transform: translateY(-2px); border-color: var(--ink); box-shadow: 0 10px 24px -16px var(--ink); }
.option-card[data-selected="true"] {
  border-color: var(--ink);
  background: var(--paper-deep);
  box-shadow: 0 0 0 4px var(--paper), 0 0 0 5px var(--ink);
}
.option-card[data-selected="true"]::before {
  content: "✓";
  position: absolute; top: 10px; right: 12px;
  font-family: var(--ff-serif);
  color: var(--teal-deep);
  font-size: 18px;
}
.option-card__icon {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  margin-bottom: 14px;
  font-family: var(--ff-mono);
  font-size: 12px;
  color: var(--ink);
}
.option-card__title {
  font-family: var(--ff-serif);
  font-size: 19px;
  font-weight: 500;
  margin: 0 0 6px;
}
.option-card__desc {
  font-family: var(--ff-serif);
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.45;
  margin: 0;
}

/* Ambition (large hero cards with pyramid) */
.ambition-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.ambition-card {
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 28px 28px 32px;
  background: var(--paper);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  text-align: left;
  font-family: inherit; color: inherit;
  transition: border-color .2s ease, transform .2s ease, box-shadow .25s ease;
}
.ambition-card:hover { transform: translateY(-3px); box-shadow: 0 16px 36px -22px var(--ink); }
.ambition-card[data-selected="true"] { border-color: var(--ink); background: var(--paper-deep); }
.ambition-card[data-selected="true"]::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: repeating-linear-gradient(-45deg, var(--ink) 0 4px, var(--paper-deep) 4px 8px);
}
.ambition-card__tier {
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-fade);
  margin-bottom: 8px;
}
.ambition-card__name {
  font-family: var(--ff-serif);
  font-size: 32px;
  font-weight: 400;
  margin: 0 0 10px;
  line-height: 1;
}
.ambition-card__name em { font-style: italic; color: var(--teal-deep); }
.ambition-card__mult {
  font-family: var(--ff-mono);
  font-size: 13px;
  color: var(--ink);
  margin-bottom: 14px;
}
.ambition-card__body {
  font-family: var(--ff-serif);
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.55;
  margin: 0 0 18px;
}
.pyramid {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  margin-top: 14px;
}
.pyramid__row {
  display: flex; gap: 4px;
  font-family: var(--ff-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.pyramid__cell {
  width: 22px; height: 14px;
  background: var(--paper-deep);
  border: 1px solid var(--rule);
}
.pyramid__cell--filled { background: var(--ink); border-color: var(--ink); }
.pyramid__cell--accent { background: var(--coral); border-color: var(--coral); }
.pyramid__cell--teal { background: var(--teal); border-color: var(--teal); }

/* Gauges (Step 3) */
.gauge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.gauge {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 22px 22px 26px;
  position: relative;
}
.gauge__head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--rule);
}
.gauge__name {
  font-family: var(--ff-serif);
  font-size: 22px;
  margin: 0;
  font-weight: 400;
}
.gauge__unit {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--ink-fade);
  text-transform: uppercase;
}
.gauge__svg-wrap {
  position: relative;
  display: grid; place-items: center;
  margin: 6px 0 16px;
}
.gauge__readout {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px;
  pointer-events: none;
}
.gauge__readout strong {
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: 36px;
  font-weight: 400;
  color: var(--ink);
}
.gauge__readout small {
  font-family: var(--ff-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-fade);
}
.gauge__steps { display: flex; gap: 6px; }
.gauge__step {
  flex: 1; height: 28px;
  background: var(--paper);
  border: 1px solid var(--rule);
  font-family: var(--ff-mono);
  font-size: 10px;
  display: grid; place-items: center;
  cursor: pointer;
  transition: all .15s ease;
  color: var(--ink-soft);
}
.gauge__step:hover { border-color: var(--ink); }
.gauge__step[data-on="true"] {
  background: var(--ink); color: var(--paper); border-color: var(--ink);
}

/* ============================================================
   Loading screen
   ============================================================ */
.loading-screen {
  min-height: 580px;
  display: grid; place-items: center;
  position: relative;
}
.loading-card {
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 4px;
  padding: 60px 80px;
  text-align: center;
  position: relative;
  max-width: 640px;
  box-shadow: var(--shadow-page);
}
.loading-card__title {
  font-family: var(--ff-serif);
  font-size: 38px;
  font-weight: 400;
  margin: 0 0 8px;
}
.loading-card__title em { font-style: italic; color: var(--teal-deep); }
.loading-card__sub {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-fade);
  margin: 0 0 28px;
}
.loading-steps {
  text-align: left;
  display: flex; flex-direction: column; gap: 10px;
  margin: 24px 0 8px;
  font-family: var(--ff-mono);
  font-size: 12.5px;
}
.loading-steps li { display: flex; gap: 12px; align-items: center; opacity: 0.4; transition: opacity .4s ease, color .4s ease; }
.loading-steps li[data-active="true"] { opacity: 1; color: var(--teal-deep); }
.loading-steps li[data-done="true"] { opacity: 0.85; color: var(--ink); }
.loading-steps li::before {
  content: ""; width: 14px; height: 14px;
  border: 1px solid currentColor;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.loading-steps li[data-done="true"]::before { background: currentColor; }

/* ============================================================
   Results
   ============================================================ */
.contribution-hero {
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 4px;
  padding: 36px 40px;
  box-shadow: var(--shadow-page);
  position: relative;
  overflow: hidden;
}
.contribution-hero::after {
  content: "";
  position: absolute;
  top: 0; right: 0; width: 220px; height: 220px;
  background: radial-gradient(circle at 70% 30%, oklch(from var(--coral) l c h / 0.30) 0%, transparent 70%);
  pointer-events: none;
}
.contribution-hero__label {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.contribution-hero__amount {
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: clamp(36px, 4.5vw, 62px);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--coral);
  margin: 14px 0 6px;
  display: flex; align-items: baseline; gap: 8px;
}
.contribution-hero__amount sub {
  font-family: var(--ff-mono);
  font-style: normal;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--ink-fade);
  text-transform: uppercase;
  vertical-align: baseline;
}
.contribution-hero__sub {
  font-family: var(--ff-serif);
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 60ch;
  line-height: 1.5;
}
.contribution-hero__row {
  display: flex; gap: 28px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px dashed var(--rule);
  flex-wrap: wrap;
}

/* The transparent equation — full numeric chain inside contribution hero */
.transparent-eq {
  margin-top: 22px;
  padding: 18px 20px;
  background: var(--paper-deep);
  border: 1px dashed var(--rule);
  border-radius: 4px;
  position: relative;
  z-index: 1;
}
.transparent-eq__head {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-fade);
  margin-bottom: 14px;
}
.transparent-eq__chain {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 8px;
}
.transparent-eq__cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 14px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 3px;
  min-width: 92px;
}
.transparent-eq__cell-label {
  font-family: var(--ff-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-fade);
}
.transparent-eq__cell-value {
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--ink);
  line-height: 1;
}
.transparent-eq__cell[data-tone="coral"] { border-color: var(--coral); }
.transparent-eq__cell[data-tone="coral"] .transparent-eq__cell-value { color: var(--coral); }
.transparent-eq__cell[data-tone="teal"]  { border-color: var(--teal-deep); }
.transparent-eq__cell[data-tone="teal"]  .transparent-eq__cell-value { color: var(--teal-deep); }
.transparent-eq__cell--total {
  border-width: 2px;
}
.transparent-eq__cell[data-tone="coral-fill"] {
  background: var(--coral);
  border-color: var(--coral);
}
.transparent-eq__cell[data-tone="coral-fill"] .transparent-eq__cell-label { color: oklch(from var(--paper) l c h / 0.85); }
.transparent-eq__cell[data-tone="coral-fill"] .transparent-eq__cell-value { color: var(--paper); font-size: 22px; font-weight: 500; }
.transparent-eq__op {
  font-family: var(--ff-mono);
  font-size: 16px;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  padding: 0 2px;
}
.transparent-eq__op--eq {
  color: var(--coral);
  font-weight: 600;
}
.transparent-eq__foot {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--rule);
  font-family: var(--ff-serif);
  font-size: 13px;
  color: var(--ink-soft);
}
.transparent-eq__foot em {
  color: var(--teal-deep);
  font-style: italic;
}
@media (max-width: 720px) {
  .transparent-eq { padding: 14px 14px; }
  /* Stack vertically on mobile so values don't shrink to fit a horizontal row. */
  .transparent-eq__chain {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .transparent-eq__cell {
    padding: 10px 14px;
    min-width: 0;
    width: 100%;
    flex-direction: row;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
  }
  .transparent-eq__cell-value { font-size: 18px; }
  .transparent-eq__cell[data-tone="coral-fill"] .transparent-eq__cell-value { font-size: 22px; }
  .transparent-eq__op {
    font-size: 14px;
    align-self: center;
    padding: 2px 0;
  }
}
.kv {
  display: flex; flex-direction: column; gap: 4px;
}
.kv__label {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-fade);
}
.kv__value {
  font-family: var(--ff-serif);
  font-size: 19px;
  color: var(--ink);
}

/* Results equation animated trace */
.results-equation .eq-term { background: var(--paper); }
.results-equation .eq-term__value { font-size: 26px; }

/* Impact grid */
.impact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 18px;
}
.impact-card {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 22px;
  position: relative;
  overflow: hidden;
  min-height: 260px;
  display: flex; flex-direction: column;
}
.impact-card__photo {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  filter: saturate(0.9) contrast(1.05);
}
.impact-card__photo::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, oklch(0.2 0.04 240 / 0.05) 0%, oklch(0.2 0.04 240 / 0.65) 100%);
}
.impact-card--photo { color: var(--paper); border-color: var(--ink); }
.impact-card--photo > * { position: relative; z-index: 1; }
.impact-card__caption {
  font-family: var(--ff-mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-top: auto;
  opacity: 0.85;
}
.impact-card__metric {
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: 56px;
  line-height: 0.95;
  font-weight: 400;
}
.impact-card__metric small {
  font-family: var(--ff-mono);
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: block;
  margin-top: 6px;
  opacity: 0.85;
}
.impact-card__title {
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin: 0 0 8px;
  color: var(--ink-soft);
}
.impact-card--paper .impact-card__title { color: var(--ink-fade); }

/* Impact cards v2 — clean grid with color-coded accents */
.impact-specimen .impact-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 18px;
}
.impact-specimen__head { margin-bottom: 4px; }

.impact-card--v2 {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--rule);
  border-radius: 4px;
  padding: 22px 22px 20px;
  min-height: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.impact-card--v2:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -22px oklch(0.2 0.05 250 / 0.35);
}
.impact-card--v2[data-tone="coral"] { border-top-color: var(--coral); }
.impact-card--v2[data-tone="kelp"]  { border-top-color: var(--kelp); }
.impact-card--v2[data-tone="teal"]  { border-top-color: var(--teal-deep); }

.impact-card--v2 .impact-card__icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--paper-deep);
  color: var(--ink);
}
.impact-card--v2[data-tone="coral"] .impact-card__icon {
  background: oklch(from var(--coral) l c h / 0.12);
  color: var(--coral);
}
.impact-card--v2[data-tone="kelp"] .impact-card__icon {
  background: oklch(from var(--kelp) l c h / 0.14);
  color: var(--kelp);
}
.impact-card--v2[data-tone="teal"] .impact-card__icon {
  background: oklch(from var(--teal-deep) l c h / 0.12);
  color: var(--teal-deep);
}

.impact-card--v2 .impact-card__title {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0;
}
.impact-card--v2 .impact-card__metric {
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: 44px;
  line-height: 0.95;
  font-weight: 400;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.impact-card--v2[data-tone="coral"] .impact-card__metric { color: var(--coral); }
.impact-card--v2[data-tone="kelp"]  .impact-card__metric { color: var(--kelp); }
.impact-card--v2[data-tone="teal"]  .impact-card__metric { color: var(--teal-deep); }

.impact-card--v2 .impact-card__metric small {
  font-family: var(--ff-mono);
  font-style: normal;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-fade);
  margin-top: 0;
}
.impact-card--v2 .impact-card__caption {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--rule);
  font-family: var(--ff-serif);
  font-size: 12.5px;
  letter-spacing: 0;
  text-transform: none;
  font-style: italic;
  color: var(--ink-soft);
  opacity: 1;
}

@media (max-width: 1024px) {
  .impact-specimen .impact-grid { grid-template-columns: 1fr !important; }
}
@media (max-width: 720px) {
  .impact-card--v2 { padding: 18px 16px 16px; }
  .impact-card--v2 .impact-card__metric { font-size: 36px; }
  .impact-card--v2 .impact-card__icon { width: 40px; height: 40px; }
}

/* Projects carousel */
.projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.project-card {
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--paper);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease;
}
.project-card:hover { transform: translateY(-3px); box-shadow: 0 18px 36px -24px var(--ink); }
.project-card__photo {
  height: 160px;
  background-size: cover;
  background-position: center;
  position: relative;
  border-bottom: 1px solid var(--rule);
}
.project-card__pin {
  position: absolute;
  top: -10px; left: 50%; transform: translateX(-50%);
  width: 14px; height: 14px;
  background: var(--coral);
  border: 2px solid var(--paper);
  border-radius: 50%;
  box-shadow: 0 4px 8px -2px oklch(0.3 0.05 30 / 0.5);
}
.project-card__body {
  padding: 16px 18px 20px;
  display: flex; flex-direction: column; gap: 8px;
}
.project-card__loc {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-fade);
}
.project-card__name {
  font-family: var(--ff-serif);
  font-size: 19px;
  margin: 0;
  font-weight: 400;
  color: var(--ink);
}
.project-card__alloc {
  font-family: var(--ff-mono);
  font-size: 11.5px;
  color: var(--teal-deep);
  margin-top: 4px;
  display: flex; align-items: center; gap: 8px;
}
.project-card__bar {
  flex: 1;
  height: 4px;
  background: var(--paper-deep);
  border-radius: 0;
  position: relative;
  overflow: hidden;
}
.project-card__bar::after {
  content: "";
  position: absolute; top: 0; left: 0; bottom: 0;
  background: var(--teal-deep);
  width: var(--w, 50%);
}

/* Comparison table */
.compare {
  border: 1px solid var(--ink);
  border-radius: 4px;
  background: var(--paper);
  overflow: hidden;
}
.compare__row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
}
.compare__row > div {
  padding: 16px 20px;
  border-bottom: 1px solid var(--rule);
}
.compare__row:last-child > div { border-bottom: 0; }
.compare__row--head > div {
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--ink);
  background: var(--paper-deep);
}
.compare__feature {
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: 16px;
  color: var(--ink);
}
.compare__cell {
  font-family: var(--ff-serif);
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.45;
}
.compare__cell--strong { color: var(--ink); border-left: 1px solid var(--rule); background: oklch(from var(--teal) l c h / 0.07); }

/* dMRV² badge */
.dmrv-badge {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 8px 14px 8px 8px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--paper);
}
.dmrv-badge__seal {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  display: grid; place-items: center;
  font-family: var(--ff-mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.dmrv-badge__text {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
}

/* Modal */
.modal-overlay {
  position: fixed; inset: 0;
  background: oklch(0.2 0.04 240 / 0.55);
  backdrop-filter: blur(6px);
  display: grid; place-items: center;
  z-index: 100;
  animation: fadeIn .2s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 4px;
  padding: 36px 38px;
  width: min(520px, 90vw);
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 30px 80px -20px oklch(0.1 0.05 240 / 0.5);
  animation: modalIn .3s cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes modalIn { from { transform: translateY(12px) scale(.98); opacity: 0; } to { transform: none; opacity: 1; } }
.modal__close {
  position: absolute; top: 14px; right: 14px;
  background: none; border: 0; font-size: 20px; cursor: pointer;
  color: var(--ink-soft);
  width: 28px; height: 28px;
}
.modal h3 {
  font-family: var(--ff-serif);
  font-size: 26px;
  font-weight: 400;
  margin: 0 0 6px;
}
.modal p {
  font-family: var(--ff-serif);
  color: var(--ink-soft);
  margin: 0 0 22px;
  line-height: 1.5;
}
.modal-fields { display: flex; flex-direction: column; gap: 22px; margin-bottom: 24px; }

/* Thank-you screen */
.thanks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: stretch;
}
.thanks__copy h2 {
  font-family: var(--ff-serif);
  font-size: clamp(40px, 4.4vw, 64px);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin: 16px 0 14px;
  line-height: 1;
}
.thanks__copy h2 em { font-style: italic; color: var(--teal-deep); }
.thanks__copy p { font-family: var(--ff-serif); color: var(--ink-soft); font-size: 17px; line-height: 1.55; }
.pdf-preview {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 22px;
  box-shadow: var(--shadow-page);
  position: relative;
  transform: rotate(1deg);
  display: flex; flex-direction: column; gap: 12px;
  min-height: 460px;
}
.pdf-preview::before {
  content: "Nature_Integrity_Brief.pdf";
  position: absolute; top: -10px; left: 18px;
  background: var(--paper);
  padding: 0 10px;
  font-family: var(--ff-mono);
  font-size: 10px;
  color: var(--ink-soft);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.pdf-preview__page {
  border: 1px solid var(--rule);
  flex: 1;
  display: flex; flex-direction: column;
  padding: 22px 22px 18px;
  background:
    repeating-linear-gradient(transparent 0 28px, var(--rule) 28px 28.5px);
}
.pdf-preview__title {
  font-family: var(--ff-serif);
  font-size: 22px;
  font-weight: 400;
  margin: 0 0 10px;
}
.pdf-preview__lines {
  display: flex; flex-direction: column; gap: 8px;
  margin-top: 14px;
}
.pdf-preview__lines span {
  display: block;
  height: 6px;
  background: var(--paper-edge);
  border-radius: 1px;
}
.pdf-preview__lines span:nth-child(1) { width: 86%; }
.pdf-preview__lines span:nth-child(2) { width: 92%; }
.pdf-preview__lines span:nth-child(3) { width: 70%; }
.pdf-preview__lines span:nth-child(4) { width: 88%; }
.pdf-preview__lines span:nth-child(5) { width: 60%; }

/* ============================================================
   Mobile mirror
   ============================================================ */
.mobile-mirror {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 32px 20px;
  display: flex; align-items: center; justify-content: center;
  border-left: 1px dashed var(--rule);
  background: 
    radial-gradient(900px 700px at 50% 50%, oklch(0.94 0.02 80) 0%, transparent 70%);
  flex-direction: column;
  gap: 16px;
}
.mobile-mirror__label {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-fade);
}

/* ============================================================
   Ambition card details
   ============================================================ */
.ambition-card[data-tier="10x"] .ambition-card__name em { color: var(--coral); }

/* ============================================================
   Action footer
   ============================================================ */
.actions-bar {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px dashed var(--rule);
  display: flex; justify-content: space-between; align-items: center;
}

/* ============================================================
   Animated coral SVG (results)
   ============================================================ */
.coral-bloom {
  width: 100%; max-width: 240px;
  display: block;
}
.coral-bloom path,
.coral-bloom circle,
.coral-bloom line {
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  animation: drawIn 1.6s cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
}
.coral-bloom path:nth-child(2) { animation-delay: .15s; }
.coral-bloom path:nth-child(3) { animation-delay: .3s; }
.coral-bloom path:nth-child(4) { animation-delay: .45s; }
.coral-bloom path:nth-child(5) { animation-delay: .6s; }
.coral-bloom path:nth-child(6) { animation-delay: .75s; }
@keyframes drawIn { to { stroke-dashoffset: 0; } }

/* Equation arrow flow */
.eq-flow .eq-term { animation: termIn .55s cubic-bezier(.2,.7,.2,1) both; }
.eq-flow .eq-term:nth-child(1) { animation-delay: .05s; }
.eq-flow .eq-term:nth-child(3) { animation-delay: .25s; }
.eq-flow .eq-term:nth-child(5) { animation-delay: .45s; }
.eq-flow .eq-term:nth-child(7) { animation-delay: .65s; }
.eq-flow .eq-op { animation: opIn .35s ease both; }
.eq-flow .eq-op:nth-child(2) { animation-delay: .2s; }
.eq-flow .eq-op:nth-child(4) { animation-delay: .4s; }
.eq-flow .eq-op:nth-child(6) { animation-delay: .6s; }
@keyframes termIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes opIn { from { opacity: 0; transform: scale(.6); } to { opacity: 1; transform: scale(1); } }

/* Marginalia */
.margin-note {
  font-family: var(--ff-serif);
  font-style: italic;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.4;
  position: relative;
  padding-left: 18px;
}
.margin-note::before {
  content: ""; position: absolute; left: 0; top: 8px;
  width: 12px; height: 1px; background: var(--ink);
}

/* Splash chip rows */
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chip {
  padding: 6px 12px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-family: var(--ff-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  background: var(--paper);
}
.chip--strong { border-color: var(--ink); color: var(--ink); }

/* Hide native scrollbar polish */
.desktop-stage::-webkit-scrollbar { width: 0; }

/* ============================================================
   Layout grids for new question types
   ============================================================ */
.size-grid    { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.region-grid  { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.pillar-grid  { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 8px; }
.timing-grid  { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-top: 8px; }

/* ============================================================
   Mobile / tablet responsive pass
   ============================================================ */
@media (max-width: 1024px) {
  .desktop-stage { padding: 24px 28px !important; }
  .hero h1 { font-size: 44px !important; line-height: 1.05 !important; }
  .specimen { padding: 22px 22px !important; }
  .option-grid--3 { grid-template-columns: repeat(2, 1fr) !important; }
  .ambition-grid { grid-template-columns: 1fr !important; gap: 14px; }
  .gauge-grid    { grid-template-columns: 1fr !important; }
  .impact-grid   { grid-template-columns: 1fr !important; }
  .projects      { grid-template-columns: 1fr !important; }
  .compare__row  { grid-template-columns: 140px 1fr 1fr !important; }
  .results-equation .equation { flex-direction: column; align-items: stretch; gap: 10px; }
  .equation { flex-direction: column; align-items: stretch; gap: 10px; }
  .eq-op { transform: rotate(90deg); align-self: center; }
  .region-grid, .size-grid { grid-template-columns: repeat(2, 1fr); }
  .pillar-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .notebook-header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .meta-strip { flex-wrap: wrap; gap: 10px; font-size: 10px; }
  .desktop-stage { padding: 16px 16px !important; }
  .hero { padding: 24px 0 !important; }
  .hero h1 { font-size: 34px !important; }
  .hero__lede { font-size: 15px !important; }
  .hero__cta-row { flex-direction: column; align-items: stretch; }
  .hero__cta-row .btn { width: 100%; }
  .specimen { padding: 18px 16px !important; }
  .specimen__title { font-size: 22px !important; }
  .option-grid--3 { grid-template-columns: 1fr !important; }
  .option-card { padding: 14px 14px !important; }
  .field-row { grid-template-columns: 1fr !important; }
  .actions-bar { flex-direction: column-reverse; align-items: stretch; gap: 10px; }
  .actions-bar .btn { width: 100%; }
  .contribution-hero__amount { font-size: 28px !important; }
  .contribution-hero__row { grid-template-columns: 1fr 1fr !important; }
  .compare__row { grid-template-columns: 1fr !important; padding: 10px 12px; }
  .compare__row--head { display: none !important; }
  .compare__feature { font-weight: 600; }
  .compare__cell { padding: 4px 0; font-size: 13px; }
  .modal { width: calc(100vw - 24px) !important; max-width: 100% !important; padding: 22px 18px !important; max-height: calc(100vh - 32px) !important; }
  .pillar-grid, .timing-grid, .size-grid, .region-grid { grid-template-columns: 1fr !important; }
  .stamp { font-size: 9px; }
  /* tier ladder on small screens */
  .ambition-tiers, [class*="tier-ladder"] { grid-template-columns: repeat(2, 1fr) !important; }
}

/* Larger touch targets on mobile range inputs */
@media (max-width: 720px) {
  input[type="range"].range { height: 32px; }
  input[type="range"].range::-webkit-slider-thumb { width: 22px; height: 22px; }
}

/* ============================================================
   Allocation optimizer
   ============================================================ */
.optimizer {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 28px;
  margin-top: 18px;
}
.optimizer__controls {
  border: 1px dashed var(--rule);
  border-radius: 4px;
  padding: 18px 20px;
  background: var(--paper);
  align-self: start;
  position: sticky;
  top: 24px;
}
.optimizer__slider-row { margin-bottom: 14px; }
.optimizer__slider-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 6px;
}
.optimizer__list { display: flex; flex-direction: column; gap: 12px; }

.alloc-card {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  padding: 14px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--paper);
  transition: border-color .15s ease, transform .15s ease;
}
.alloc-card:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
}
.alloc-card__photo {
  width: 120px; height: 110px;
  background-size: cover;
  background-position: center;
  border-radius: 3px;
  border: 1px solid var(--rule);
}
.alloc-card__body { min-width: 0; display: flex; flex-direction: column; }

@media (max-width: 1024px) {
  .optimizer { grid-template-columns: 1fr; gap: 18px; }
  .optimizer__controls { position: static; }
}
@media (max-width: 720px) {
  .alloc-card { grid-template-columns: 1fr; }
  .alloc-card__photo { width: 100%; height: 140px; }
}

/* ============================================================
   Integrity Sieve — particles + reduced-motion + mobile
   ============================================================ */
.sieve { position: relative; }
.sieve__particle {
  animation: sieveFall 1.6s ease-in infinite;
  opacity: 0;
}
@keyframes sieveFall {
  0%   { transform: translateY(0);    opacity: 0; }
  10%  { opacity: 0.9; }
  60%  { opacity: 0.6; transform: translateY(180px); }
  85%  { opacity: 0;   transform: translateY(260px); }
  100% { transform: translateY(280px); opacity: 0; }
}

/* Hero balance scale layout */
.balance-scale { width: 100%; max-width: 620px; justify-self: end; }
.hero__gap { /* default desktop two-col already inline via style */ }

/* Step 3 pyramid layout fallback */
.step3-pyramid { display: flex; align-items: center; justify-content: center; }

/* Equation diagram sizing on small screens */
@media (max-width: 720px) {
  .eq-diagram { min-height: 240px; }
  .step3-preview { grid-template-columns: 1fr !important; }
  .step3-pyramid { max-width: 220px; margin: 0 auto; }
  .hero__gap { grid-template-columns: 1fr !important; gap: 22px !important; }
  .balance-scale { justify-self: center; max-width: 460px; }
  .sieve__particle { display: none; } /* skip particles on phones */
}

/* ============================================================
   Mobile pass — comprehensive small-screen fixes
   (Activated by viewport=device-width meta tag)
   ============================================================ */
@media (max-width: 720px) {
  /* Dev-tweaks panel: hide on mobile (it's an internal tool) */
  .twk-panel { display: none !important; }

  /* Progress ruler — keep 3 cols, shrink type */
  .progress-ruler { gap: 8px; margin-bottom: 14px; }
  .progress-step__num { font-size: 8.5px; letter-spacing: 0.14em; margin-bottom: 2px; }
  .progress-step__title { font-size: 11.5px; margin-bottom: 6px; }
  .progress-step__bar { height: 4px; }

  /* Live equation — wrap pills tightly */
  .live-eq { padding: 10px 12px 12px; }
  .live-eq__head { font-size: 9px; gap: 4px; margin-bottom: 8px; }
  .live-eq__head strong { font-size: 13px; }
  .live-eq__hint { display: block; margin-left: 0; margin-top: 2px; }
  .live-eq__pills { gap: 6px; }
  .live-eq__pill { padding: 5px 8px; font-size: 10.5px; gap: 4px; }
  .live-eq__pill-label { font-size: 8.5px; letter-spacing: 0.12em; }
  .live-eq__pill-value { font-size: 11px; }
  .live-eq__op { font-size: 11px; }

  /* Notebook header: condense brand block + meta strip */
  .notebook-header { padding-bottom: 14px; margin-bottom: 16px; }
  .brand-mark { gap: 4px; font-size: 10px; }
  .brand-mark__logo { height: 22px; }
  .brand-mark__product { font-size: 15px !important; }

  /* Hero: stack into a single column. Inner content already maxWidth:920. */
  .hero {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }
  .hero__eyebrow {
    font-size: 10px;
    letter-spacing: 0.16em;
    flex-wrap: wrap;
    gap: 8px;
  }
  .hero__eyebrow::before { display: none; }

  /* Ocean canvas behind hero — clamp to right side, don't bleed full width */
  .ocean-canvas { inset: -20px -20px auto 30%; height: 60%; opacity: 0.35; }

  /* Funding-gap explainer + balance scale stack */
  .balance-scale { max-width: 100%; }

  /* Specimen padding */
  .specimen { padding: 18px 16px !important; }
  .specimen + .specimen { margin-top: 14px; }

  /* Contribution hero (results headline) */
  .contribution-hero { padding: 22px 18px !important; }
  .contribution-hero__amount { font-size: clamp(28px, 7vw, 36px) !important; gap: 6px; flex-wrap: wrap; }
  .contribution-hero__sub { font-size: 15px; }
  .contribution-hero__row {
    flex-wrap: wrap;
    gap: 14px !important;
    margin-top: 18px;
  }
  .contribution-hero__row > * { flex: 1 1 140px; }

  /* Loading card: shrink generous padding */
  .loading-card { padding: 32px 22px !important; }
  .loading-card__title { font-size: 26px !important; }

  /* Optimizer: full-width alloc cards already handled; stack controls */
  .optimizer__controls { padding: 14px 14px; }

  /* Trusted-by footer logos */
  footer .brand-mark { font-size: 9px; }
  footer > div:last-child { gap: 18px !important; }
  footer img { height: 18px !important; max-width: 84px !important; }

  /* Modal lead form: tighter spacing */
  .modal-fields { gap: 14px !important; margin-bottom: 16px !important; }

  /* Field-row already stacks; ensure inputs don't overflow */
  .field__input, input.field__input { max-width: 100%; box-sizing: border-box; }

  /* Pyramid SVG containers — keep centered + shrunk */
  .step3-pyramid svg { max-width: 240px; }

  /* Equation diagram in results */
  .eq-diagram { max-height: 320px; }

  /* DMRV badge in results header — wrap below stamp */
  .dmrv-badge { font-size: 10px; }

  /* Chip rows */
  .chip-row { gap: 6px; }
  .chip { font-size: 9.5px; padding: 4px 9px; letter-spacing: 0.1em; }
}

/* Small phones */
@media (max-width: 480px) {
  .desktop-stage { padding: 12px 12px 60px !important; }
  /* Very tight phones — progress ruler titles can hide, leaving just the number bar */
  .progress-step__title { font-size: 10.5px; }
  .live-eq__pill { font-size: 10px; padding: 4px 7px; }
  .live-eq__pill-label { display: none; }
  .hero h1 { font-size: 28px !important; }
  .hero__lede { font-size: 14px !important; }
  .specimen { padding: 14px 12px !important; }
  .specimen__title { font-size: 19px !important; }
  .notebook-header { flex-direction: column; align-items: flex-start; gap: 8px; }
  .meta-strip { font-size: 9px; gap: 8px; }
  .brand-mark__product { font-size: 13px !important; }
  .brand-mark__logo { height: 18px; }
  .contribution-hero { padding: 18px 14px !important; }
  .contribution-hero__amount { font-size: clamp(24px, 6vw, 28px) !important; }
  .loading-card { padding: 24px 16px !important; }
  .loading-card__title { font-size: 22px !important; }
  .btn { font-size: 13px; padding: 10px 14px; }
  footer > div:last-child { gap: 14px !important; }
  footer img { height: 16px !important; max-width: 72px !important; }
}

/* Prevent overflow from media + long words on small screens */
@media (max-width: 720px) {
  .desktop-stage svg { max-width: 100%; height: auto; }
  .desktop-stage img { max-width: 100%; height: auto; }
  .desktop-stage { overflow-x: hidden; }
}

/* ============================================================
   Reduced-motion override — respect user accessibility preferences
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .sieve__particle { display: none; }
  /* Make stroke-dash reveals show their final state */
  .eq-diagram [style*="strokeDashoffset"] { stroke-dashoffset: 0 !important; }
}