/* ==========================================================================
   SHATTERPROMPTS — design system
   Dark, editorial, restrained. Mobile-first (min-width queries only).
   No frameworks, no webfonts, no external requests.
   ========================================================================== */

:root {
  /* Surfaces — near-black, never harsh pure black */
  --bg:        #0C0C0D;
  --bg-raise:  #121214;
  --bg-sink:   #08080A;

  /* Warm off-white type */
  --fg:        #F0EBE2;
  --fg-dim:    #AFA89E;   /* 8.2:1 on --bg */
  --fg-faint:  #726D66;   /* decorative / large only */

  /* Deep red. Rules, marks, large type, focus. Never body text. */
  --accent:      #CE2029;
  --accent-soft: rgba(206, 32, 41, .16);
  --accent-text: #EF5058;   /* 5.5:1 — the only red allowed on small text */

  --line:      #232326;
  --line-soft: #18191B;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "Helvetica Neue", Arial, sans-serif;

  --wrap: 40rem;        /* editorial reading column */
  --wrap-wide: 64rem;
  --pad: 1.5rem;

  --section: 3.75rem;
  --rhythm: 1.5rem;
}

@media (min-width: 48em) { :root { --pad: 2.5rem; --section: 6rem; } }
@media (min-width: 64em) { :root { --section: 7rem; } }

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, h4, p, ul, ol, li, figure, blockquote { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img, svg { display: block; max-width: 100%; }
button, input, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; }

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 70% 50% at 15% -5%, rgba(206,32,41,.055), transparent 70%),
    radial-gradient(ellipse 60% 40% at 95% 105%, rgba(206,32,41,.03), transparent 70%);
  background-attachment: fixed;
}

/* ---------- layout ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--pad); }
.wrap-wide { width: 100%; max-width: var(--wrap-wide); margin-inline: auto; padding-inline: var(--pad); }
.section { padding-block: var(--section); }
.section--tight { padding-block: calc(var(--section) * .6); }
.rule { height: 1px; background: var(--line); border: 0; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: .5rem; top: -4rem; z-index: 200;
  background: var(--fg); color: var(--bg); padding: .75rem 1.125rem;
  font-size: .875rem; font-weight: 600; transition: top .15s ease;
}
.skip:focus { top: .5rem; }

:where(a, button, input, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 3px;
}

/* ---------- typography ----------
   Tighter tracking as size increases — the thing that separates editorial
   type from default-browser type. */
.eyebrow {
  font-size: .75rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--fg-dim);
  font-weight: 600;
}
.eyebrow--accent { color: var(--fg); display: flex; align-items: center; gap: .75rem; }
.eyebrow--accent::before {
  content: ""; width: 1.75rem; height: 2px; background: var(--accent); flex: 0 0 auto;
}

h1, .h1 {
  font-size: clamp(2.125rem, 8.5vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: -.038em;
  font-weight: 700;
  text-wrap: balance;
}
h2, .h2 {
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  line-height: 1.1;
  letter-spacing: -.028em;
  font-weight: 700;
  text-wrap: balance;
}
h3, .h3 {
  font-size: 1.0625rem;
  line-height: 1.32;
  letter-spacing: -.014em;
  font-weight: 640;
}
.lead {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--fg-dim);
  max-width: 33rem;
  text-wrap: pretty;
}
@media (min-width: 48em) { .lead { font-size: 1.1875rem; line-height: 1.55; } }

.dim { color: var(--fg-dim); }
.small { font-size: .8125rem; line-height: 1.55; color: var(--fg-dim); }
p + p { margin-top: 1rem; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(12,12,13,.72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background-color .25s ease;
}
.topbar.is-scrolled { border-bottom-color: var(--line); background: rgba(12,12,13,.94); }
.topbar__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  min-height: 3.5rem;
}
.wordmark {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .8125rem; font-weight: 700; letter-spacing: .15em;
  text-transform: uppercase; text-decoration: none; white-space: nowrap;
}
.wordmark::before {
  content: ""; width: .375rem; height: .375rem; background: var(--accent); flex: 0 0 auto;
}
.topbar__link {
  font-size: .8125rem; color: var(--fg-dim); text-decoration: none;
  display: inline-flex; align-items: center; min-height: 2.75rem;
  padding-inline: .25rem; transition: color .15s ease;
}
.topbar__link:hover { color: var(--fg); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 3.375rem; padding: .875rem 1.75rem;
  background: var(--fg); color: var(--bg);
  font-size: 1rem; font-weight: 640; letter-spacing: -.008em;
  text-decoration: none; text-align: center;
  border: 1px solid var(--fg);
  transition: background-color .18s ease, border-color .18s ease, transform .12s ease;
}
.btn:hover { background: #fff; border-color: #fff; }
.btn:active { transform: translateY(1px); }
.btn--full { width: 100%; }
.btn--ghost { background: transparent; color: var(--fg); border-color: var(--line); }
.btn--ghost:hover { background: transparent; border-color: var(--fg-dim); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn[disabled]:hover { background: var(--fg); border-color: var(--fg); }

.tlink {
  display: inline-flex; align-items: center; gap: .5rem;
  min-height: 2.75rem;
  color: var(--fg); text-decoration: none;
  border-bottom: 1px solid var(--line);
  font-size: .9375rem;
  transition: border-color .18s ease;
}
.tlink:hover { border-bottom-color: var(--accent); }
.tlink__arrow { color: var(--accent-text); transition: transform .18s ease; }
.tlink:hover .tlink__arrow { transform: translateX(3px); }

/* ---------- hero ---------- */
.hero { padding-block: 3.25rem var(--section); position: relative; }
@media (min-width: 48em) { .hero { padding-block: 5rem var(--section); } }
.hero__eyebrow { margin-bottom: 1.75rem; }
.hero h1 { margin-bottom: 1.375rem; }
.hero__support { margin-bottom: 2.25rem; }
.hero__support p + p { margin-top: .75rem; }
.hero__cta { display: flex; flex-direction: column; gap: .75rem; align-items: stretch; }
@media (min-width: 30em) { .hero__cta { flex-direction: row; align-items: center; flex-wrap: wrap; } }
.hero__note { margin-top: 1rem; }

/* Pack index numeral — a quiet motif, never competing with the headline */
.hero__index {
  position: absolute; top: 2rem; right: var(--pad);
  font-size: clamp(4rem, 16vw, 7rem);
  font-weight: 700; letter-spacing: -.06em; line-height: 1;
  color: var(--fg);
  opacity: .045;
  pointer-events: none; user-select: none;
}
@media (min-width: 48em) { .hero__index { top: 3.5rem; } }

/* ---------- editorial pack list ---------- */
.packlist { border-top: 1px solid var(--line); }
.packrow {
  display: grid;
  grid-template-columns: 2.25rem 1fr auto;
  align-items: baseline;
  gap: .5rem 1rem;
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: background-color .18s ease, padding-inline .18s ease;
}
.packrow:hover { background: var(--bg-raise); }
@media (min-width: 48em) {
  .packrow { padding-inline: 0; }
  .packrow:hover { padding-inline: .875rem; }
}
.packrow:hover .packrow__name { color: #fff; }
.packrow:hover .packrow__arrow { color: var(--accent-text); transform: translateX(3px); }
.packrow__n {
  font-size: .75rem; font-weight: 700; color: var(--fg-faint);
  font-variant-numeric: tabular-nums; letter-spacing: .1em;
  transition: color .18s ease;
}
.packrow:hover .packrow__n { color: var(--accent-text); }
.packrow__body { min-width: 0; }
.packrow__name {
  font-size: 1.1875rem; font-weight: 640; letter-spacing: -.022em;
  line-height: 1.25; display: block; transition: color .18s ease;
}
.packrow__outcome {
  font-size: .9375rem; color: var(--fg-dim); line-height: 1.5; margin-top: .3125rem;
}
.packrow__arrow {
  color: var(--fg-faint); font-size: 1rem; align-self: center;
  transition: transform .18s ease, color .18s ease;
}

/* ---------- steps ---------- */
.steps { display: grid; gap: 2rem; }
@media (min-width: 48em) { .steps { grid-template-columns: repeat(3, 1fr); gap: 2.5rem; } }
.step { border-top: 2px solid var(--line); padding-top: 1.125rem; }
.step__n {
  font-size: .75rem; font-weight: 700; letter-spacing: .16em;
  color: var(--accent-text); margin-bottom: .75rem;
}
.step h3 { margin-bottom: .4375rem; }
.step p { font-size: .9375rem; color: var(--fg-dim); }

/* ---------- statement ---------- */
.statement {
  font-size: 1.3125rem; line-height: 1.38; letter-spacing: -.024em;
  font-weight: 620; max-width: 30rem; text-wrap: pretty;
}
@media (min-width: 48em) { .statement { font-size: 1.5rem; } }
.statement em { font-style: normal; color: var(--fg-dim); }

/* ---------- inside list ---------- */
.inside { display: grid; gap: .875rem; }
.inside li {
  display: grid; grid-template-columns: auto 1fr; gap: .875rem;
  font-size: .9375rem; line-height: 1.5; align-items: start;
}
.inside li::before {
  content: ""; width: .5rem; height: 2px; background: var(--accent); margin-top: .6875rem;
}

/* ---------- sequence ---------- */
.seq { counter-reset: seq; }
.seq li {
  counter-increment: seq;
  display: grid; grid-template-columns: 2.25rem 1fr; gap: .875rem;
  align-items: baseline;
  padding-block: .9375rem;
  border-bottom: 1px solid var(--line-soft);
  font-size: .9375rem;
}
.seq li:first-child { border-top: 1px solid var(--line-soft); }
.seq li::before {
  content: counter(seq, decimal-leading-zero);
  font-size: .75rem; font-weight: 700; color: var(--accent-text);
  font-variant-numeric: tabular-nums; letter-spacing: .08em;
}

/* ---------- prompt block ---------- */
.prompt { border-top: 1px solid var(--line); padding-top: 1.25rem; margin-top: 2rem; }
.prompt:first-of-type { margin-top: 0; }
.prompt__head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; margin-bottom: 1rem;
}
.prompt__title {
  font-size: .75rem; font-weight: 700; letter-spacing: .15em;
  text-transform: uppercase; color: var(--fg-dim);
  display: flex; align-items: baseline; gap: .625rem;
}
.prompt__title .n {
  color: var(--accent-text); font-variant-numeric: tabular-nums; letter-spacing: .08em;
}
.prompt__body {
  font-size: .9375rem; line-height: 1.7; color: var(--fg);
  white-space: pre-wrap; word-break: break-word;
  padding-left: 1.125rem;
  border-left: 2px solid var(--accent-soft);
}
@media (min-width: 48em) { .prompt__body { font-size: 1rem; } }
.prompt__body .ph { color: var(--accent-text); }

.copy {
  display: inline-flex; align-items: center; gap: .4rem;
  min-height: 2.75rem; padding: .4rem .875rem;
  font-size: .8125rem; font-weight: 600; letter-spacing: .02em;
  color: var(--fg-dim); border: 1px solid var(--line);
  white-space: nowrap; flex: 0 0 auto;
  transition: color .18s ease, border-color .18s ease;
}
.copy:hover { color: var(--fg); border-color: var(--fg-dim); }
.copy[data-copied="true"] { color: var(--accent-text); border-color: var(--accent); }

/* ---------- form ---------- */
.form { display: grid; gap: 1.125rem; }
.field label {
  display: block; font-size: .8125rem; font-weight: 640;
  margin-bottom: .5rem; color: var(--fg);
}
.input {
  width: 100%; min-height: 3.375rem; padding: .9375rem 1.0625rem;
  background: var(--bg-sink); color: var(--fg);
  border: 1px solid var(--line);
  font-size: 1rem; /* 16px — stops iOS zooming on focus */
  transition: border-color .18s ease;
}
.input::placeholder { color: var(--fg-faint); }
.input:hover { border-color: #2E2E32; }
.input:focus { outline: 2px solid var(--accent-text); outline-offset: 2px; border-color: transparent; }
.input[aria-invalid="true"] { border-color: var(--accent); }

.error {
  display: block; font-size: .8125rem; font-weight: 640;
  color: var(--accent-text); margin-top: .5rem;
}
.error[hidden] { display: none; }

.consent {
  display: grid; grid-template-columns: auto 1fr; gap: .875rem;
  align-items: start; cursor: pointer;
  padding-block: .5rem; min-height: 2.75rem;
}
.consent input {
  width: 1.125rem; height: 1.125rem; margin-top: .3125rem;
  accent-color: var(--accent); flex: 0 0 auto;
}
.consent span { font-size: .875rem; line-height: 1.55; color: var(--fg-dim); }

.spinner {
  width: .875rem; height: .875rem; border: 2px solid currentColor;
  border-top-color: transparent; border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- notice ---------- */
.notice {
  border-left: 2px solid var(--accent);
  padding: .875rem 0 .875rem 1.125rem;
  font-size: .875rem; line-height: 1.6; color: var(--fg-dim);
}
.notice strong { color: var(--fg); font-weight: 640; }

/* ---------- upgrade ---------- */
.upgrade { border-top: 1px solid var(--line); padding-top: 2rem; }
.upgrade h2 { margin-bottom: .875rem; }
.upgrade p { color: var(--fg-dim); font-size: .9375rem; max-width: 32rem; }
.upgrade__status {
  display: inline-block; margin-top: 1.375rem;
  font-size: .8125rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--fg-dim);
  border: 1px solid var(--line); padding: .5625rem .875rem;
}

/* ---------- access page ---------- */
.success__badge {
  display: inline-flex; align-items: center; gap: .5625rem;
  font-size: .75rem; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; color: var(--fg);
  margin-bottom: 1.375rem;
}
.success__badge::before {
  content: ""; width: .5rem; height: .5rem; background: var(--accent);
}

/* Two-column document on desktop: sticky index beside the prompts */
.doc { display: block; }
@media (min-width: 64em) {
  .doc {
    display: grid;
    grid-template-columns: 13rem minmax(0, 1fr);
    gap: 4rem;
    align-items: start;
  }
  .doc__aside { position: sticky; top: 5.5rem; }
}
.doc__label {
  font-size: .75rem; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; color: var(--fg-faint);
  padding-bottom: .75rem; border-bottom: 1px solid var(--line);
  margin-bottom: .25rem;
}

.toc { display: grid; }
.toc a {
  display: grid; grid-template-columns: 1.75rem 1fr; gap: .75rem;
  padding-block: .75rem; border-bottom: 1px solid var(--line-soft);
  text-decoration: none; font-size: .9375rem; align-items: baseline;
  color: var(--fg-dim); transition: color .15s ease;
}
.toc a:hover { color: var(--fg); }
.toc a .n {
  font-size: .75rem; font-weight: 700; color: var(--accent-text);
  font-variant-numeric: tabular-nums;
}
@media (min-width: 64em) {
  .toc a { padding-block: .5rem; border-bottom: 0; font-size: .875rem; }
}

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding-block: 3rem 3.5rem; font-size: .875rem; }
.footer__nav { display: flex; flex-wrap: wrap; gap: .25rem 1.75rem; margin-bottom: 1.75rem; }
.footer__nav a {
  color: var(--fg-dim); text-decoration: none;
  display: inline-flex; align-items: center; min-height: 2.75rem;
  transition: color .15s ease;
}
.footer__nav a:hover { color: var(--fg); }
.footer__legal { color: var(--fg-faint); font-size: .8125rem; line-height: 1.6; max-width: 34rem; }
.footer__legal a { color: var(--fg-dim); }

/* ---------- toast ---------- */
.toasts {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: 1.25rem; z-index: 150;
  width: min(24rem, calc(100vw - 2rem));
  display: grid; gap: .5rem; pointer-events: none;
}
.toast {
  background: var(--fg); color: var(--bg);
  padding: .8125rem 1.0625rem; font-size: .875rem; font-weight: 620;
  border-left: 3px solid var(--accent);
  animation: rise .22s ease both;
}
@keyframes rise { from { opacity: 0; transform: translateY(.5rem); } to { opacity: 1; transform: none; } }

/* ---------- legal prose ---------- */
.prose h2 { font-size: 1.25rem; margin-top: 2.5rem; margin-bottom: .875rem; }
.prose h2:first-of-type { margin-top: 1.5rem; }
.prose p, .prose li { font-size: .9375rem; line-height: 1.7; color: var(--fg-dim); }
.prose p + p { margin-top: .875rem; }
.prose ul { display: grid; gap: .5625rem; margin-top: .875rem; }
.prose li { display: grid; grid-template-columns: auto 1fr; gap: .875rem; }
.prose li::before { content: ""; width: .5rem; height: 2px; background: var(--accent); margin-top: .75rem; }
.prose a { color: var(--fg); }
.prose code {
  font-size: .875em; background: var(--bg-raise);
  border: 1px solid var(--line); padding: .0625rem .3125rem;
}

/* ---------- utilities ---------- */
.mt-s { margin-top: .875rem; }
.mt-m { margin-top: 1.75rem; }
.mt-l { margin-top: 2.5rem; }
.mb-m { margin-bottom: 1.75rem; }