/* The Isolation Index — app styles */

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  min-height: 100%;
}

* { box-sizing: border-box; }

a { color: inherit; }

button {
  font-family: var(--font-sans);
  cursor: pointer;
}

/* ---------- App shell ---------- */
.app {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.app__bg {
  position: fixed; inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.18;
  z-index: 0;
  pointer-events: none;
  transition: opacity var(--dur-3) var(--ease-standard), background-image var(--dur-3) var(--ease-standard);
}
.app__bg::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(18,15,41,0.55) 0%, rgba(18,15,41,0.92) 70%, rgba(18,15,41,1) 100%);
}

.app__inner {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- Header ---------- */
.hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 40px;
  border-bottom: 1px solid var(--border);
}
.hdr__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.hdr__brand img { height: 22px; display: block; }
.hdr__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

@media (max-width: 720px) {
  .hdr { padding: 16px 20px; }
  .hdr__meta { display: none; }
}

/* ---------- Main / container ---------- */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 40px 40px 80px;
}
@media (max-width: 720px) {
  .main { padding: 24px 20px 60px; }
}

.wrap {
  width: 100%;
  max-width: 920px;
  margin: 0 auto;
}
.wrap--narrow { max-width: 720px; }
.wrap--wide { max-width: 1040px; }

/* ---------- Intro ---------- */
.intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: calc(100vh - 220px);
  padding: 40px 0;
}
.intro__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
}
.intro__h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(48px, 7vw, 104px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin: 0 0 28px;
  text-wrap: balance;
}
.intro__h1 em {
  font-style: italic;
  color: var(--accent);
}
.intro__sub {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.2vw, 28px);
  line-height: 1.35;
  color: var(--fg-muted);
  max-width: 32ch;
  margin: 0 0 48px;
  font-style: italic;
}
.intro__small {
  font-size: 13px;
  color: var(--fg-subtle);
  letter-spacing: 0.02em;
  max-width: 60ch;
  margin: 0 0 40px;
  border-left: 1px solid var(--border);
  padding: 10px 0 10px 20px;
}
.intro__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.intro__meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 60px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
  max-width: 540px;
}
.intro__meta-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-subtle);
  text-transform: uppercase;
}
.intro__meta-row span:last-child { color: var(--fg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 16px 28px;
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  color: var(--fg);
  text-decoration: none;
  transition: all var(--dur-2) var(--ease-standard);
  cursor: pointer;
}
.btn--primary {
  background: var(--accent);
  color: var(--accent-fg);
  font-weight: 600;
}
.btn--primary:hover { background: var(--accent-hover); }
.btn--secondary {
  background: transparent;
  color: var(--fg);
  border-color: var(--border-strong);
}
.btn--secondary:hover { border-color: var(--fg); background: rgba(255,255,255,0.04); }
.btn--ghost {
  background: transparent;
  color: var(--fg-muted);
  padding: 10px 0;
}
.btn--ghost:hover { color: var(--fg); }
.btn--lg { padding: 20px 36px; font-size: 16px; }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }

.btn .arrow { transition: transform var(--dur-2) var(--ease-standard); }
.btn:hover:not(:disabled) .arrow { transform: translateX(3px); }

/* ---------- Progress ---------- */
.progress {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 64px;
}
.progress__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.progress__bar {
  height: 1px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}
.progress__bar::after {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  background: var(--accent);
  width: var(--p, 0%);
  transition: width 600ms var(--ease-standard);
}
.progress--ticks {
  display: flex;
  gap: 4px;
}
.progress--ticks .tick {
  flex: 1;
  height: 2px;
  background: var(--border);
  transition: background 400ms var(--ease-standard);
}
.progress--ticks .tick.done { background: var(--accent); }
.progress--ticks .tick.current { background: var(--fg); }

/* ---------- Question ---------- */
.q {
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 220px);
  padding: 20px 0 40px;
}
.q__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}
.q__text {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 2.6vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--fg);
  margin: 0 0 48px;
  max-width: 36ch;
  text-wrap: balance;
}
.q__scale {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 48px;
}
.q__scale--horizontal {
  flex-direction: row;
  gap: 8px;
}
.q__scale--horizontal .opt {
  flex: 1;
  flex-direction: column;
  text-align: center;
  padding: 24px 16px;
  min-height: 120px;
  justify-content: center;
}
.q__scale--horizontal .opt__num {
  margin-bottom: 12px;
}
.q__scale--horizontal .opt__label {
  text-align: center;
}

.opt {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: rgba(255,255,255,0.015);
  text-align: left;
  color: var(--fg);
  cursor: pointer;
  transition: all var(--dur-2) var(--ease-standard);
  width: 100%;
  font-family: var(--font-sans);
  position: relative;
}
.opt:hover {
  border-color: var(--border-strong);
  background: rgba(255,255,255,0.04);
}
.opt:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(10, 191, 219, 0.15);
}
.opt.selected {
  border-color: var(--accent);
  background: rgba(10, 191, 219, 0.08);
}
.opt__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--fg-subtle);
  width: 24px;
  flex-shrink: 0;
}
.opt.selected .opt__num { color: var(--accent); }
.opt__label {
  flex: 1;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.005em;
}

.q__nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: auto;
}
.q__nav-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-subtle);
}

/* ---------- Result ---------- */
.result {
  padding: 20px 0;
}

.result-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.result-card__inner {
  padding: 56px;
}
.result-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}
.result-card__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.result-card__brand img { height: 18px; }
.result-card__brand .pipe {
  width: 1px;
  height: 14px;
  background: var(--border-strong);
}
.result-card__brand .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.result-card__date {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-subtle);
}

.result-card__hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 48px;
}
@media (max-width: 720px) {
  .result-card__inner { padding: 32px 24px; }
  .result-card__hero { grid-template-columns: 1fr; gap: 24px; }
}

.score {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.score__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.score__num {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(120px, 18vw, 240px);
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: var(--fg);
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.score__num .of {
  font-size: 0.22em;
  color: var(--fg-subtle);
  font-family: var(--font-mono);
  letter-spacing: 0;
  margin-left: 8px;
}
.score__band {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.15;
  color: var(--accent);
  letter-spacing: -0.01em;
  margin-top: 12px;
}
.score__blurb {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.55;
  margin-top: 16px;
  max-width: 38ch;
}

.score__visual {
  position: relative;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Avatar block */
.avatar {
  border-top: 1px solid var(--border);
  padding-top: 40px;
  margin-bottom: 40px;
}
.avatar__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 16px;
}
.avatar__name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin: 0 0 20px;
  text-wrap: balance;
}
.avatar__desc {
  font-size: 17px;
  line-height: 1.55;
  color: var(--fg-muted);
  max-width: 64ch;
  margin: 0;
}

/* Practical bullets */
.bullets {
  border-top: 1px solid var(--border);
  padding-top: 40px;
  margin-bottom: 40px;
}
.bullets__h {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 22px;
  margin: 0 0 24px;
  letter-spacing: -0.01em;
}
.bullets__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.bullets__list li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 16px;
  font-size: 16px;
  line-height: 1.5;
  color: var(--fg);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.bullets__list li:last-child { border-bottom: 0; padding-bottom: 0; }
.bullets__list li::before {
  content: counter(bn, decimal-leading-zero);
  counter-increment: bn;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
  padding-top: 4px;
}
.bullets__list { counter-reset: bn; }

/* Testimonial */
.testimonial {
  border-top: 1px solid var(--border);
  padding-top: 40px;
  margin-bottom: 40px;
}
.testimonial__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 20px;
}
.testimonial__quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(20px, 2.2vw, 28px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin: 0 0 20px;
  text-wrap: pretty;
}
.testimonial__attr {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.testimonial__attr strong { color: var(--fg); font-weight: 500; }

/* CTA at bottom of result */
.result-cta {
  border-top: 1px solid var(--border-strong);
  padding-top: 40px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}
@media (max-width: 720px) {
  .result-cta { grid-template-columns: 1fr; }
}
.result-cta__copy {
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.3;
  color: var(--fg);
  margin: 0;
  max-width: 38ch;
}
.result-cta__copy em { color: var(--accent); font-style: italic; }

/* Action row */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  align-items: center;
}
.actions__note {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  margin-left: auto;
}

/* Toast for "copied" */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-raised);
  color: var(--fg);
  border: 1px solid var(--border-strong);
  padding: 14px 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 100;
  animation: toastIn 200ms var(--ease-standard);
}
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 8px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* Score visual variants */
.dial {
  width: 100%;
  max-width: 360px;
  aspect-ratio: 1;
}
.dial__ring {
  fill: none;
  stroke: var(--border);
  stroke-width: 1;
}
.dial__arc {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.5;
  transition: stroke-dashoffset 1500ms var(--ease-standard);
}
.dial__tick {
  stroke: var(--fg-subtle);
  stroke-width: 1;
}
.dial__label {
  font-family: var(--font-mono);
  font-size: 9px;
  fill: var(--fg-subtle);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 100%;
  width: 100%;
  padding: 20px 0;
}
.bars__bar {
  flex: 1;
  background: var(--border);
  transition: background 600ms var(--ease-standard), height 800ms var(--ease-standard);
  min-height: 4px;
}
.bars__bar.fill { background: var(--accent); }

/* Footer note */
.foot-note {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  margin-top: 60px;
}

/* utility */
.text-accent { color: var(--accent); }
.fade-in { animation: fadeIn 600ms var(--ease-standard); }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Tweak control overrides — keep panel readable on dark */
:root[data-tweak-skin="dark"] {
  --tweak-bg: var(--bg-elevated);
}

/* Light mode for share preview */
[data-skin="light"] {
  background: var(--igl-mist);
  color: var(--igl-ink);
}
[data-skin="light"] .result-card {
  background: #fff;
  border-color: rgba(18,15,41,0.10);
  color: var(--igl-ink);
}
[data-skin="light"] .result-card .score__num,
[data-skin="light"] .result-card .avatar__name,
[data-skin="light"] .result-card .testimonial__quote,
[data-skin="light"] .result-card .result-cta__copy,
[data-skin="light"] .result-card .bullets__h,
[data-skin="light"] .result-card .bullets__list li {
  color: var(--igl-ink);
}
[data-skin="light"] .result-card .score__blurb,
[data-skin="light"] .result-card .avatar__desc {
  color: var(--igl-n-500);
}
[data-skin="light"] .result-card .result-cta__copy em,
[data-skin="light"] .result-card .score__band {
  color: var(--igl-navy);
}
[data-skin="light"] .result-card .testimonial__attr,
[data-skin="light"] .result-card .testimonial__attr strong,
[data-skin="light"] .result-card .avatar__eyebrow,
[data-skin="light"] .result-card .testimonial__eyebrow,
[data-skin="light"] .result-card .score__eyebrow,
[data-skin="light"] .result-card .result-card__brand .label,
[data-skin="light"] .result-card .result-card__date {
  color: var(--igl-n-500);
}
[data-skin="light"] .result-card .dial__ring { stroke: rgba(18,15,41,0.12); }
[data-skin="light"] .result-card .dial__arc { stroke: var(--igl-navy); }
[data-skin="light"] .result-card .bullets__list li { border-color: rgba(18,15,41,0.10); }
[data-skin="light"] .result-card,
[data-skin="light"] .result-card * { border-color: rgba(18,15,41,0.10); }

/* Section variant: full-bleed feature image */
.feature-bg {
  position: relative;
  background-size: cover;
  background-position: center;
}

/* Tweaks-aware body class control via inline style */
body.no-anim *, body.no-anim *::before, body.no-anim *::after {
  transition: none !important;
  animation: none !important;
}