/* ==========================================================================
   TheUX AI Readiness Check: the look
   Same colours and fonts as the Drive Foundation landing page (setup.theux.ai):
   warm paper + blueprint cobalt, Fraunces for headlines, Instrument Sans for text.
   Dark mode uses the landing page's "night" chapter colours.
   Built phone first (works down to 360px wide), then widens a little on desktop.
   ========================================================================== */

/* ---------------------------------------------------------------- tokens */
:root {
  --canvas:     #F3F1EC;   /* warm paper */
  --surface:    #FBFAF7;   /* cards */
  --deep:       #E8E4DB;   /* tracks, quiet fills */
  --ink:        #1B232C;
  --ink-soft:   #535D67;
  --accent:     #2A45B5;   /* blueprint cobalt */
  --accent-ink: #F7F6F2;   /* text on cobalt */
  --line:       color-mix(in oklab, var(--ink) 13%, transparent);
  --line-strong: color-mix(in oklab, var(--ink) 24%, transparent);
  --good:       #2F7A55;
  --mid:        #9A6A12;
  --weak:       #B23B2E;
  --plate:      #2A45B5;   /* the closing cobalt plate */
  --plate-ink:  #F7F6F2;
  --plate-soft: #D6DDF6;
  --shadow: 215 30% 18%;

  --font-display: "Fraunces", Georgia, serif;
  --font-text: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --radius: 10px;

  --t-xs:   0.8rem;
  --t-sm:   0.9rem;
  --t-base: 1.0625rem;
  --t-lg:   clamp(1.125rem, 1.05rem + 0.4vw, 1.3rem);

  color-scheme: light;
}

/* Dark mode: follows the phone's setting, unless data-theme="light" forces light. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --canvas:     #122030;
    --surface:    #182A3D;
    --deep:       #22364C;
    --ink:        #EEF1F4;
    --ink-soft:   #A9B7C6;
    --accent:     #9DB1FF;
    --accent-ink: #122030;
    --good:       #6FCB9C;
    --mid:        #E6B45A;
    --weak:       #F08A7C;
    --plate:      #2A45B5;
    --shadow: 215 60% 4%;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --canvas: #122030; --surface: #182A3D; --deep: #22364C;
  --ink: #EEF1F4; --ink-soft: #A9B7C6; --accent: #9DB1FF; --accent-ink: #122030;
  --good: #6FCB9C; --mid: #E6B45A; --weak: #F08A7C; --plate: #2A45B5;
  --shadow: 215 60% 4%;
  color-scheme: dark;
}

/* ---------------------------------------------------------------- base */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 400 var(--t-base)/1.55 var(--font-text);
  font-feature-settings: "ss01";
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
::selection { background: #2A45B5; color: #F7F6F2; }
[hidden] { display: none !important; }
a { color: var(--accent); }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* One narrow column, centred. 16px side gutter on phones. */
.shell {
  max-width: 34rem;
  min-height: 100vh;
  min-height: 100dvh;
  margin-inline: auto;
  padding: 0 1rem calc(1.25rem + env(safe-area-inset-bottom));
  display: flex; flex-direction: column;
}
main { flex: 1; }

/* ---------------------------------------------------------------- top bar */
.top {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 3.5rem;
  padding-top: env(safe-area-inset-top);
}
.brand {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font: 600 1rem/1 var(--font-text); letter-spacing: 0.01em;
}
.brand__mark {
  width: 1.15rem; height: 1.15rem; border-radius: 4px; background: var(--accent);
  box-shadow: inset 0 -0.3rem 0 color-mix(in oklab, var(--canvas) 85%, transparent);
}
.back {
  order: -1;
  display: inline-flex; align-items: center; gap: 0.25rem;
  min-height: 2.75rem; padding: 0 0.75rem 0 0.35rem; margin-left: -0.35rem;
  background: none; border: 0; border-radius: 8px;
  color: var(--ink-soft); font-weight: 500; cursor: pointer;
}
.back svg { width: 1.2rem; height: 1.2rem; }
.back:active { background: var(--deep); }

/* ---------------------------------------------------------------- progress */
.progress { padding: 0.25rem 0 0.5rem; }
.progress__bar { height: 6px; border-radius: 99px; background: var(--deep); overflow: hidden; }
.progress__bar span {
  display: block; height: 100%; width: 0; border-radius: inherit;
  background: var(--accent);
  transition: width 360ms var(--ease-out);
}

/* ---------------------------------------------------------------- screens */
.screen { padding: 1.25rem 0 1.5rem; animation: rise 380ms var(--ease-out) both; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.eyebrow {
  display: flex; align-items: center; gap: 0.55rem; flex-wrap: wrap;
  margin: 0 0 0.9rem;
  font-size: var(--t-xs); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-soft);
}
.eyebrow__dot { width: 4px; height: 4px; border-radius: 50%; background: currentColor; opacity: 0.6; }

.display {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-variation-settings: "SOFT" 50, "opsz" 120;
  letter-spacing: -0.02em;
  line-height: 1.08;
  text-wrap: balance;
}
.display em { font-style: italic; font-weight: 350; color: var(--accent); }
.display--xl { font-size: clamp(2.5rem, 1.6rem + 4.6vw, 3.6rem); line-height: 1.02; }
.display--md { font-size: clamp(1.6rem, 1.3rem + 1.5vw, 2.15rem); }
.display--sm { font-size: 1.45rem; letter-spacing: -0.01em; }
.display:focus { outline: none; }

.lede { margin: 1rem 0 0; font-size: var(--t-lg); line-height: 1.45; text-wrap: pretty; }
.lede--center { text-align: center; }
.soft { color: var(--ink-soft); }
.fine { margin: 0.9rem 0 0; font-size: var(--t-sm); color: var(--ink-soft); text-align: center; text-wrap: pretty; }
.hint { margin: 0.75rem 0 0; color: var(--ink-soft); }

/* ---------------------------------------------------------------- cards */
.card {
  margin-top: 1.5rem;
  padding: 1.15rem 1.15rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 1px 2px hsl(var(--shadow) / 0.06), 0 6px 18px hsl(var(--shadow) / 0.05);
}
.card p { margin: 0; }
.card__label {
  font-size: var(--t-xs); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent);
}
/* intro: the 'before you start' note */
.intro-note { margin: 0.5rem 0 0.4rem !important; font-size: var(--t-lg); line-height: 1.45; }
.steps { margin: 0.6rem 0 0.9rem; padding-left: 1.3rem; }
.steps li { padding: 0.15rem 0; }
.steps li::marker { color: var(--accent); font-weight: 600; }

/* ---------------------------------------------------------------- buttons */
.cta {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.6em;
  min-height: 3.5rem; padding: 0.9rem 1.5rem;
  background: var(--accent); color: var(--accent-ink);
  border: 0; border-radius: 8px;
  font: 600 var(--t-base)/1.2 var(--font-text);
  text-decoration: none; text-align: center; cursor: pointer;
  box-shadow: 0 2px 4px hsl(var(--shadow) / 0.18), inset 0 1px 0 rgb(255 255 255 / 0.18);
  transition: transform 140ms var(--ease-out), box-shadow 160ms var(--ease-out), opacity 160ms;
}
.cta svg { width: 1.1em; height: 1.1em; flex: none; }
.cta:active { transform: translateY(1px) scale(0.985); }
.cta[disabled] { opacity: 0.6; cursor: progress; }
.cta--block { display: flex; width: 100%; margin-top: 1.5rem; }
.cta--light { background: var(--plate-ink); color: #1D2F80; }
@media (hover: hover) and (pointer: fine) {
  .cta:hover { transform: translateY(-1px); box-shadow: 0 6px 14px hsl(var(--shadow) / 0.22), inset 0 1px 0 rgb(255 255 255 / 0.18); }
}

.link-btn {
  display: inline-flex; align-items: center; gap: 0.35rem;
  min-height: 2.75rem;
  background: none; border: 0; padding: 0;
  color: var(--accent); font-weight: 600; text-decoration: none; cursor: pointer;
}
.link-btn svg { width: 1rem; height: 1rem; }
.link-btn--quiet { display: flex; margin: 1.5rem auto 0; color: var(--ink-soft); font-weight: 500; text-decoration: underline; text-underline-offset: 3px; }

/* ---------------------------------------------------------------- answer options */
.options { display: grid; gap: 0.7rem; margin-top: 1.5rem; }
.option {
  display: flex; align-items: center; gap: 0.85rem;
  width: 100%; min-height: 3.75rem;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius);
  text-align: left; font-size: var(--t-base); line-height: 1.35; font-weight: 500;
  cursor: pointer;
  transition: border-color 140ms, background-color 140ms, transform 120ms var(--ease-out);
}
.option__dot {
  flex: none; width: 1.3rem; height: 1.3rem; border-radius: 50%;
  border: 1.5px solid var(--line-strong);
  display: grid; place-items: center;
  transition: border-color 140ms, background-color 140ms;
}
.option__dot::after { content: ""; width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--accent-ink); transform: scale(0); transition: transform 160ms var(--ease-out); }
.option:active { transform: scale(0.985); }
.option[aria-pressed="true"] { border-color: var(--accent); background: color-mix(in oklab, var(--accent) 9%, var(--surface)); }
.option[aria-pressed="true"] .option__dot { border-color: var(--accent); background: var(--accent); }
.option[aria-pressed="true"] .option__dot::after { transform: scale(1); }
@media (hover: hover) and (pointer: fine) { .option:hover { border-color: var(--accent); } }

/* ---------------------------------------------------------------- result dial */
#screen-result { text-align: center; }
#screen-result .eyebrow { justify-content: center; }
.dial { position: relative; width: min(13rem, 62vw); margin: 0.5rem auto 1.25rem; aspect-ratio: 1; }
.dial svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.dial circle { fill: none; stroke-width: 9; }
.dial__track { stroke: var(--deep); }
.dial__arc { stroke: var(--accent); stroke-linecap: round; transition: stroke-dashoffset 1100ms var(--ease-out); }
.dial[data-tone="weak"] .dial__arc { stroke: var(--weak); }
.dial[data-tone="mid"] .dial__arc { stroke: var(--mid); }
.dial__num {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font: 400 clamp(3.2rem, 2.4rem + 4vw, 4rem)/1 var(--font-display);
  font-variation-settings: "SOFT" 50, "opsz" 144;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.dial__num small { margin-top: 0.35rem; font: 500 var(--t-xs)/1 var(--font-text); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); }

.card--weak { text-align: left; border-left: 4px solid var(--weak); }
.weak__name { margin: 0.35rem 0 0.4rem !important; font: 400 1.4rem/1.2 var(--font-display); }

/* ---------------------------------------------------------------- email form */
.card--form { text-align: left; }
.card--form .soft { margin-top: 0.35rem; }
.field { display: block; margin-top: 1rem; }
.field span { display: block; margin-bottom: 0.35rem; font-size: var(--t-sm); font-weight: 600; }
.field input {
  width: 100%; min-height: 3.25rem; padding: 0.75rem 0.9rem;
  background: var(--canvas); color: var(--ink);
  border: 1.5px solid var(--line-strong); border-radius: 8px;
  font: 400 1.0625rem/1.2 var(--font-text);   /* 17px: stops iPhone zooming in on tap */
}
.field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 22%, transparent); }
.field input[aria-invalid="true"] { border-color: var(--weak); }
.check { display: flex; gap: 0.7rem; align-items: flex-start; margin-top: 1.1rem; font-size: var(--t-sm); line-height: 1.45; cursor: pointer; }
.check input { flex: none; width: 1.3rem; height: 1.3rem; margin: 0.05rem 0 0; accent-color: var(--accent); }
.form-error { margin-top: 1rem !important; color: var(--weak); font-weight: 600; font-size: var(--t-sm); }
.card--form .fine { text-align: left; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------------------------------------------------------------- full report */
.report-sent { margin: 0.75rem 0 0; font-size: var(--t-sm); }
.areas { display: grid; gap: 1rem; margin-top: 1.5rem; }
.area { margin: 0; }
.area__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.area__name { margin: 0; font: 400 1.4rem/1.2 var(--font-display); }
.area__score { flex: none; font: 600 var(--t-base)/1 var(--font-text); font-variant-numeric: tabular-nums; }
.area__score small { color: var(--ink-soft); font-weight: 500; }
.area__q { margin-top: 0.15rem !important; color: var(--ink-soft); font-size: var(--t-sm); }
.area__bar { height: 6px; margin: 0.8rem 0 0.6rem; border-radius: 99px; background: var(--deep); overflow: hidden; }
.area__bar span { display: block; height: 100%; border-radius: inherit; background: var(--good); }
.area[data-tone="mid"] .area__bar span { background: var(--mid); }
.area[data-tone="weak"] .area__bar span { background: var(--weak); }
.tag {
  display: inline-block; margin-bottom: 0.6rem; padding: 0.2rem 0.55rem;
  border-radius: 99px; font-size: var(--t-xs); font-weight: 600; letter-spacing: 0.04em;
  background: color-mix(in oklab, var(--good) 14%, transparent); color: var(--good);
}
.area[data-tone="mid"] .tag { background: color-mix(in oklab, var(--mid) 16%, transparent); color: var(--mid); }
.area[data-tone="weak"] .tag { background: color-mix(in oklab, var(--weak) 14%, transparent); color: var(--weak); }
.tag--start { margin-left: 0.35rem; background: var(--accent) !important; color: var(--accent-ink) !important; }
.area__means { margin-top: 0.2rem !important; }
.fix {
  margin-top: 1rem; padding: 0.95rem 1rem 1rem;
  background: var(--canvas); border-radius: 8px; border: 1px dashed var(--line-strong);
}
.fix__label { font-size: var(--t-xs); font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.fix__title { margin: 0.3rem 0 0.5rem !important; font-weight: 600; }
.fix ol { margin: 0; padding-left: 1.25rem; }
.fix li { padding: 0.2rem 0; font-size: var(--t-sm); line-height: 1.5; }
.fix li::marker { color: var(--accent); font-weight: 600; }

/* the cobalt closing plate (same as the landing page's last chapter) */
.plate {
  margin-top: 2rem; padding: 1.5rem 1.25rem 1.4rem;
  background: var(--plate); color: var(--plate-ink);
  border-radius: 14px;
  box-shadow: 0 10px 30px hsl(228 70% 12% / 0.25);
}
.plate p { margin: 0.75rem 0 0; color: var(--plate-soft); }
.plate .display { margin-top: 0.3rem; }
.plate__eyebrow { margin: 0 !important; font-size: var(--t-xs); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; }
.plate__price { font-weight: 600; color: var(--plate-ink) !important; }
.plate .cta { margin-top: 1.25rem; }
.plate .cta:focus-visible { outline-color: var(--plate-ink); }

/* ---------------------------------------------------------------- footer */
.foot {
  display: flex; justify-content: space-between; gap: 1rem;
  padding-top: 1.25rem; border-top: 1px solid var(--line);
  font-size: var(--t-xs); color: var(--ink-soft);
}
.foot a { color: inherit; }

/* ---------------------------------------------------------------- wider screens */
@media (min-width: 640px) {
  .shell { padding-inline: 1.5rem; }
  .screen { padding-top: 2.5rem; }
  .card, .plate { padding: 1.5rem 1.6rem; }
}

/* ---------------------------------------------------------------- calm motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}