/* Calibration worksheet world — desk + ruled paper instrument */

:root {
  --desk: #141414;
  --paper: #E7E2D6;
  --paper-line: rgba(28, 35, 40, 0.1);
  --ink: #1C2328;
  --ink-soft: #3D4A52;
  --ink-faint: #6A767E;
  --teal: #0B6E6B;
  --teal-deep: #085552;
  --ochre: #C45C26;
  --lead: #2F5F8A;
  --ok: #1F7A4C;
  --danger: #A83232;
  --radius-sheet: 2px;
  --font-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body: "Source Serif 4", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --shadow-sheet: 0 18px 48px rgba(0, 0, 0, 0.45), 0 2px 0 rgba(255, 255, 255, 0.04);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--desk);
  color: var(--ink);
  min-height: 100vh;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: rgba(11, 110, 107, 0.28);
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.hidden { display: none !important; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.desk {
  min-height: 100vh;
  padding: 28px 16px 40px;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(255,255,255,0.04), transparent 55%),
    var(--desk);
}

.desk-credit {
  max-width: 820px;
  margin: 20px auto 0;
  text-align: center;
  color: rgba(231, 226, 214, 0.45);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  line-height: 1.5;
}

/* ===== Name gate ===== */
.sheet-name { max-width: 560px; }
.name-title {
  font-size: clamp(40px, 10vw, 64px);
  margin-bottom: 16px;
}
.name-lead { margin-bottom: 24px; }
.name-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 8px;
}
.name-input {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid rgba(28, 35, 40, 0.35);
  background: rgba(255, 255, 255, 0.45);
  font-family: var(--font-body);
  font-size: 18px;
  color: var(--ink);
  margin-bottom: 18px;
}
.name-input:focus {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}
.consent-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.4;
  margin-bottom: 22px;
  cursor: pointer;
}
.consent-row input {
  margin-top: 3px;
  accent-color: var(--teal);
  flex-shrink: 0;
}
.privacy-line {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  line-height: 1.45;
  margin-top: -8px;
}
.sheet-name .btn-stamp { margin-left: 0; margin-right: auto; }

/* ===== Screens ===== */
.screen { display: none; }
.screen.active { display: block; }

.sheet {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--paper-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--paper-line) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: -1px -1px;
  border-radius: var(--radius-sheet);
  box-shadow: var(--shadow-sheet);
  padding: clamp(28px, 5vw, 48px);
  color: var(--ink);
}

.sheet::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at 20% 0%, rgba(255,255,255,0.35), transparent 45%);
  mix-blend-mode: soft-light;
  opacity: 0.7;
}

/* ===== Cover ===== */
.sheet-cover { padding-bottom: 36px; }

.sheet-top {
  display: grid;
  grid-template-columns: 1fr minmax(0, 2.2fr) auto;
  gap: 16px;
  align-items: start;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1.5px solid var(--ink);
}

.sheet-top-left {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.micro-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.head-mark, .target-mark {
  width: 52px;
  height: auto;
  color: var(--ink);
}

.field-lines {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
}

.field-lines .uline {
  display: inline-block;
  min-width: 72px;
  border-bottom: 1px solid var(--ink-faint);
  margin-left: 6px;
  padding: 0 2px 1px;
  color: var(--ink);
}

.sheet-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  color: var(--ink-soft);
  align-self: center;
  line-height: 1.4;
  padding: 0 8px;
}

.sheet-top-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.sheet-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

h1 {
  position: relative;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(42px, 9vw, 72px);
  line-height: 0.92;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin: 8px 0 22px;
  color: var(--ink);
}

.lead {
  position: relative;
  font-size: clamp(16px, 2.2vw, 19px);
  color: var(--lead);
  max-width: 38em;
  margin-bottom: 28px;
}

.lead em {
  font-style: italic;
  color: var(--ink);
}

.stat-rule {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  margin: 0 0 32px;
}

.stat-rule > div {
  padding: 14px 12px;
  text-align: center;
}

.stat-rule > div + div {
  border-left: 1px solid rgba(28, 35, 40, 0.35);
}

.stat-rule b {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 36px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
}

.stat-rule span {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* Stamp CTA */
.btn-stamp {
  position: relative;
  display: block;
  margin: 8px auto 36px;
  padding: 16px 36px;
  border: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.5vw, 26px);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #F4F1EA;
  background: var(--teal);
  transform: rotate(-1.2deg);
  box-shadow: inset 0 0 0 2px rgba(244, 241, 234, 0.25);
  filter: url(#stamp-noise);
  transition: transform 0.15s ease, background 0.15s ease;
  /* ink texture without SVG filter dependency */
  background-image:
    radial-gradient(circle at 12% 28%, rgba(255,255,255,0.12) 0 1px, transparent 2px),
    radial-gradient(circle at 78% 64%, rgba(0,0,0,0.12) 0 1.2px, transparent 2px),
    radial-gradient(circle at 40% 80%, rgba(255,255,255,0.08) 0 1px, transparent 2px),
    linear-gradient(180deg, rgba(255,255,255,0.08), transparent 40%),
    var(--teal);
  background-size: 18px 18px, 22px 22px, 16px 16px, 100% 100%, 100% 100%;
  clip-path: polygon(
    0.5% 4%, 2% 0.5%, 98% 1%, 99.5% 6%, 100% 94%, 98% 99%, 3% 100%, 0% 95%
  );
}

.btn-stamp:hover {
  background-color: var(--teal-deep);
  transform: rotate(-0.4deg) translateY(-1px);
}

.btn-stamp:active {
  transform: rotate(-1.8deg) scale(0.99);
}

.sheet-foot {
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-end;
  padding-top: 18px;
  border-top: 1px solid rgba(28, 35, 40, 0.25);
}

.note {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.45;
  color: var(--ochre);
  max-width: 26em;
}

.meta-foot {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  text-align: right;
}

/* ===== Buttons (work / result) ===== */
.btn {
  border: none;
  border-radius: 2px;
  padding: 11px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-display);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--teal);
  color: #F4F1EA;
}

.btn-primary:hover:not(:disabled) {
  background: var(--teal-deep);
}

.btn-ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid rgba(28, 35, 40, 0.35);
}

.btn-ghost:hover:not(:disabled) {
  color: var(--ink);
  border-color: var(--ink);
}

/* ===== Test sheet ===== */
.work-head {
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1.5px solid var(--ink);
}

.progress-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.progress-bar {
  flex: 1;
  height: 4px;
  background: rgba(28, 35, 40, 0.12);
  overflow: hidden;
}

#progress-fill {
  height: 100%;
  width: 100%;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

#progress-text {
  font-size: 12px;
  color: var(--ink-faint);
  white-space: nowrap;
}

.q-block-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
}

.scenario {
  font-size: 17px;
  margin-bottom: 16px;
  color: var(--ink);
}

.prompt {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: 16px;
  color: var(--ink);
}

.option {
  display: block;
  width: 100%;
  text-align: left;
  background: rgba(255, 255, 255, 0.35);
  border: 1.5px solid rgba(28, 35, 40, 0.22);
  border-radius: 1px;
  padding: 13px 16px;
  margin-bottom: 8px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.45;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

.option:hover {
  border-color: var(--teal);
}

.option.selected {
  border-color: var(--teal);
  background: rgba(11, 110, 107, 0.12);
  box-shadow: inset 3px 0 0 var(--teal);
}

.intensity { margin-top: 18px; }
.intensity-label {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
  font-size: 14px;
}

#q-slider {
  width: 100%;
  accent-color: var(--teal);
  cursor: pointer;
}

.slider-scale {
  display: flex;
  justify-content: space-between;
  color: var(--ink-faint);
  font-size: 12px;
  margin-top: 4px;
}

.q-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid rgba(28, 35, 40, 0.2);
}

/* ===== Results ===== */
.result-top {
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 1.5px solid var(--ink);
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1;
  margin-top: 6px;
}

.score-hero {
  text-align: center;
  margin: 28px 0 32px;
}

.score-circle {
  width: 176px;
  height: 176px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: conic-gradient(var(--teal) 0deg, rgba(28, 35, 40, 0.12) 0deg);
  position: relative;
  border: 1.5px solid var(--ink);
}

.score-circle::before {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid rgba(28, 35, 40, 0.15);
}

.score-num {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 800;
  position: relative;
  z-index: 1;
  line-height: 1;
}

.score-denum {
  color: var(--ink-faint);
  position: relative;
  z-index: 1;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.score-level {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.score-desc {
  color: var(--ink-soft);
  max-width: 34em;
  margin: 0 auto;
  font-size: 16px;
}

.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

.chart-panel, .insight, .ai-panel {
  background: rgba(255, 255, 255, 0.28);
  border: 1px solid rgba(28, 35, 40, 0.18);
  padding: 20px;
}

.chart-panel h3, .insight h3, .ai-panel-head h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.bar-item { margin-bottom: 12px; }
.bar-head {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 4px;
  font-family: var(--font-mono);
}
.bar-track {
  height: 8px;
  background: rgba(28, 35, 40, 0.12);
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.insights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.insight.strength h3 { color: var(--ok); }
.insight.growth h3 { color: var(--ochre); }
.insight-item { margin-bottom: 12px; }
.insight-item b {
  display: block;
  font-family: var(--font-display);
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.insight-item p {
  color: var(--ink-soft);
  font-size: 14px;
  margin-top: 4px;
}

.results-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
}

/* ===== AI panel ===== */
.ai-panel {
  margin-top: 8px;
  border-color: rgba(11, 110, 107, 0.35);
}

.ai-status {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 12px;
  min-height: 1.2em;
  margin-top: 4px;
}

.ai-summary {
  font-size: 17px;
  line-height: 1.55;
  margin: 16px 0 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(28, 35, 40, 0.2);
}

.ai-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 16px;
}

.ai-col h4 {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 10px;
  color: var(--teal);
}

.ai-practice, .ai-trigger {
  margin-top: 6px;
  font-size: 13px;
  color: var(--ink-soft);
}

.ai-practice span, .ai-trigger span {
  color: var(--ink);
  font-weight: 600;
}

.ai-blind {
  background: rgba(11, 110, 107, 0.08);
  border: 1px dashed rgba(11, 110, 107, 0.4);
  padding: 14px;
  margin-bottom: 14px;
}

.ai-blind b {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ai-blind p { color: var(--ink-soft); font-size: 14px; }
.ai-disclaimer {
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 11px;
}
.ai-empty { color: var(--ink-faint); font-size: 14px; }

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--teal);
  color: #F4F1EA;
  padding: 12px 22px;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: transform 0.3s;
  z-index: 100;
}

.toast.show { transform: translateX(-50%) translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 720px) {
  .sheet-top {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .sheet-kicker {
    grid-column: 1 / -1;
    order: -1;
    text-align: left;
    padding: 0;
  }
  .charts-row, .insights, .ai-columns {
    grid-template-columns: 1fr;
  }
  .sheet-foot {
    flex-direction: column;
    align-items: flex-start;
  }
  .meta-foot { align-items: flex-start; text-align: left; }
  h1 { font-size: clamp(36px, 12vw, 52px); }
}

@media (max-width: 480px) {
  .stat-rule { grid-template-columns: 1fr; }
  .stat-rule > div + div {
    border-left: none;
    border-top: 1px solid rgba(28, 35, 40, 0.25);
  }
  .desk { padding: 16px 10px 28px; }
}