/* Base Marketing: global styles. Swiss-grid skeleton, Bauhaus structural. */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.05;
  margin: 0 0 var(--sp-4);
  text-wrap: balance;
}

p { margin: 0 0 var(--sp-4); max-width: 68ch; }
a { color: inherit; }
img, svg { max-width: 100%; display: block; }

.visually-hidden {
  position: absolute; left: -10000px; top: -10000px;
  width: 1px; height: 1px; overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
}

.skip-link {
  position: absolute; left: var(--sp-4); top: -100px;
  background: var(--accent-fill); color: var(--on-accent);
  padding: var(--sp-3) var(--sp-4); z-index: 100;
  transition: top var(--dur-state) var(--ease-out-quart);
}
.skip-link:focus { top: var(--sp-4); }

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

/* ---------- Layout shell: the visible Swiss grid ---------- */

.shell {
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: var(--sp-6);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--sp-6);
}

.rule-top    { border-top: 1px solid var(--border); }
.rule-bottom { border-bottom: 1px solid var(--border); }

section { padding-block: var(--sp-24); }
@media (max-width: 720px) { section { padding-block: var(--sp-16); } }

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-ink);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
}
.eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  background: var(--accent-fill);
}

/* ---------- Intro splash (homepage only, once per session) ---------- */

.splash {
  display: none;
  position: fixed; inset: 0; z-index: 200;
  background: var(--bg);
  align-items: center; justify-content: center;
  flex-direction: column; gap: var(--sp-3);
  opacity: 1;
  transition: opacity 500ms var(--ease-out-quart);
}
.splash.is-active { display: flex; }
.splash.is-hiding { opacity: 0; pointer-events: none; }
.splash-mark {
  font-family: var(--font-display); font-weight: 800; font-size: 2.75rem;
  margin: 0; letter-spacing: -0.01em;
}
.splash-word {
  display: inline-block;
  opacity: 0; transform: translateY(14px) scale(0.92);
  animation: splash-word-in 600ms var(--ease-out-expo) forwards;
}
.splash-dot {
  display: inline-block;
  color: var(--accent-fill);
  opacity: 0; transform: scale(0.3);
  animation: splash-dot-in 380ms var(--ease-out-quart) 480ms forwards;
}
.splash-name {
  font-family: var(--font-mono); font-size: var(--text-xs);
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-muted);
  margin: 0;
  opacity: 0;
  animation: splash-name-in 500ms var(--ease-out-quart) 260ms forwards;
}
@keyframes splash-word-in { to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes splash-dot-in { to { opacity: 1; transform: scale(1); } }
@keyframes splash-name-in { to { opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  .splash-word, .splash-dot, .splash-name {
    animation: none; opacity: 1; transform: none;
  }
}

/* ---------- Header ---------- */

.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in oklch, var(--bg) 92%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}
.site-header .shell {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: var(--sp-4);
}
.wordmark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.wordmark span { color: var(--accent-fill); }

.nav-links {
  display: flex; gap: var(--sp-8);
  list-style: none; margin: 0; padding: 0;
}
.nav-links a {
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--sp-2) 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--dur-state) var(--ease-out-quart);
}
.nav-links a:hover,
.nav-links a[aria-current="page"] { border-color: var(--accent-fill); }

.nav-right { display: flex; align-items: center; gap: var(--sp-6); }

.nav-toggle {
  display: none;
  background: none; border: 1px solid var(--border-strong);
  width: 44px; height: 44px; padding: 0;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 18px; height: 2px;
  background: var(--fg); margin: 4px auto; transition: transform var(--dur-state) var(--ease-out-quart);
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  /* The header CTA wraps and collides with the wordmark at phone widths.
     Apply is still reachable via the hamburger menu (it's in .nav-links)
     and repeated in the hero, dark band, and footer. */
  .site-header .nav-right > .btn-primary { display: none; }
  .nav-links.is-open {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg); border-bottom: 1px solid var(--border);
    padding: var(--sp-4) var(--sp-6);
  }
  .nav-links.is-open a { padding: var(--sp-3) 0; border-bottom: 1px solid var(--border); }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  font-family: var(--font-body); font-weight: 700; font-size: var(--text-sm);
  padding: var(--sp-3) var(--sp-6);
  border-radius: var(--radius-control);
  text-decoration: none; cursor: pointer;
  border: 1px solid transparent;
  transition: transform var(--dur-feedback) var(--ease-out-quart),
              background-color var(--dur-state) var(--ease-out-quart),
              box-shadow var(--dur-state) var(--ease-out-quart);
}
.btn-primary { background: var(--accent-fill); color: var(--on-accent); }
.btn-primary:hover   { background: var(--accent-fill-hover); transform: translateY(-1px); }
.btn-primary:active  { transform: translateY(0); }
.btn-primary:disabled{ opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-outline {
  background: transparent; color: var(--fg); border-color: var(--border-strong);
}
.btn-outline:hover { border-color: var(--accent-fill); color: var(--accent-ink); }

.btn-arrow { transition: transform var(--dur-feedback) var(--ease-out-quart); }
.btn:hover .btn-arrow { transform: translate(2px, -2px); }

/* ---------- Hero ---------- */

.hero { padding-top: var(--sp-24); padding-bottom: var(--sp-24); }
.hero-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: var(--sp-12);
  align-items: end;
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}
.hero h1 { font-size: var(--text-3xl); max-width: 14ch; }
.hero .lede { font-size: var(--text-md); color: var(--fg-muted); max-width: 42ch; }

.hero-index {
  border-left: 1px solid var(--border);
  padding-left: var(--sp-6);
  display: grid; gap: var(--sp-6);
}
.hero-index dt {
  font-family: var(--font-mono); font-size: var(--text-xs);
  color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.08em;
}
.hero-index dd { margin: var(--sp-1) 0 0; font-weight: 700; }

.hero-actions { display: flex; gap: var(--sp-4); margin-top: var(--sp-8); flex-wrap: wrap; align-items: center; }
.hero-micro { font-size: var(--text-xs); color: var(--fg-muted); }

/* ---------- Numbered row list (replaces icon-tile feature cards) ---------- */

.row-list { border-top: 1px solid var(--border); }
.row-list-item {
  display: grid;
  grid-template-columns: 80px 1fr 1fr;
  gap: var(--sp-6);
  padding-block: var(--sp-8);
  border-bottom: 1px solid var(--border);
}
.row-list-item .idx {
  font-family: var(--font-mono); color: var(--accent-ink); font-size: var(--text-md); font-weight: 700;
}
.row-list-item h3 { font-size: var(--text-lg); margin: 0; }
.row-list-item p { color: var(--fg-muted); margin: 0; }
@media (max-width: 760px) {
  .row-list-item { grid-template-columns: 48px 1fr; }
  .row-list-item p { grid-column: 2; }
}

/* ---------- Accent band: the one drenched-lime moment (used once) ---------- */

.band-accent {
  background: var(--bg-inverse);
  color: var(--fg-inverse);
}
.band-accent .eyebrow { color: var(--fg-inverse); }
.band-accent .eyebrow::before { background: var(--fg-inverse); }
.band-accent h2 { color: var(--fg-inverse); }
.band-accent p { color: var(--fg-muted-inverse); }
.band-accent .btn-primary { background: var(--on-accent); color: var(--lime-90); }
.band-accent .btn-primary:hover { background: var(--bg-raised); }

/* ---------- FAQ (native disclosure, no modal) ---------- */

.faq-item {
  border-bottom: 1px solid var(--border);
  padding-block: var(--sp-4);
}
.faq-item summary {
  cursor: pointer; font-weight: 700; font-size: var(--text-md);
  list-style: none; display: flex; justify-content: space-between; gap: var(--sp-4);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--accent-fill); font-size: 1.4rem; line-height: 1; }
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p { margin-top: var(--sp-3); color: var(--fg-muted); }

/* ---------- Steps (Method page) ---------- */

.steps { counter-reset: step; }
.step {
  position: relative;
  padding-left: var(--sp-16);
  padding-bottom: var(--sp-16);
  border-left: 1px solid var(--border);
  margin-left: 24px;
}
.step:last-child { border-color: transparent; }
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute; left: -25px; top: 0;
  width: 48px; height: 48px;
  background: var(--bg); border: 1px solid var(--accent-fill);
  color: var(--accent-ink);
  font-family: var(--font-mono); font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.step h3 { font-size: var(--text-lg); }

/* ---------- Apply wizard (one question per screen) ---------- */

.reassure-badge {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  background: var(--accent-fill); color: var(--on-accent);
  font-family: var(--font-mono); font-size: var(--text-xs);
  font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  padding: var(--sp-2) var(--sp-4); border-radius: var(--radius-control);
  margin: var(--sp-4) 0;
}

.wizard-progress {
  display: flex; align-items: center; gap: var(--sp-4);
  margin-bottom: var(--sp-12);
}
.wizard-bar {
  flex: 1; height: 4px; background: var(--border);
  position: relative; overflow: hidden;
}
.wizard-bar-fill {
  position: absolute; inset: 0 auto 0 0; height: 100%;
  background: var(--accent-fill);
  transition: width var(--dur-state) var(--ease-out-quart);
}
.wizard-counter {
  font-family: var(--font-mono); font-size: var(--text-xs);
  color: var(--fg-muted); white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.wizard-back-link {
  display: inline-block; background: none; border: 0; padding: 0;
  margin-bottom: var(--sp-6);
  font-family: var(--font-body); font-size: var(--text-sm); font-weight: 600;
  color: var(--fg-muted); cursor: pointer;
}
.wizard-back-link:hover { color: var(--fg); }
.wizard-back-link[hidden] { display: none; }

.wizard-step { margin-bottom: var(--sp-8); }
.wizard-step .btn { margin-top: var(--sp-6); }
.q-group { margin-bottom: var(--sp-8); }
.q-label { font-weight: 700; font-size: var(--text-lg); margin: 0 0 var(--sp-6); }
.q-sub { font-weight: 400; font-size: var(--text-sm); color: var(--fg-muted); }

.choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-3); }
.choice-grid-1 { grid-template-columns: 1fr; }
@media (max-width: 600px) { .choice-grid { grid-template-columns: 1fr; } }

.choice {
  display: flex; align-items: center; gap: var(--sp-3);
  border: 1px solid var(--border-strong);
  padding: var(--sp-3) var(--sp-4);
  cursor: pointer;
  transition: border-color var(--dur-state) var(--ease-out-quart),
              background-color var(--dur-state) var(--ease-out-quart);
}
.choice input { accent-color: var(--accent-fill); width: 18px; height: 18px; flex: none; }
.choice:hover { border-color: var(--accent); }
.choice:has(input:checked) { border-color: var(--accent-fill); background: var(--accent-tint); }
.choice span { font-size: var(--text-sm); font-weight: 600; }

.wizard-actions { display: flex; gap: var(--sp-4); margin-top: var(--sp-6); }

/* ---------- Forms ---------- */

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-6); }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: var(--sp-2); margin-bottom: var(--sp-6); }
.field.full { grid-column: 1 / -1; }
.field label { font-size: var(--text-sm); font-weight: 700; }
.field input, .field select, .field textarea {
  font: inherit; padding: var(--sp-3);
  background: var(--bg-raised); color: var(--fg);
  border: 1px solid var(--border-strong); border-radius: var(--radius-control);
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--accent-fill);
}
.field-hint { font-size: var(--text-xs); color: var(--fg-muted); }
.form-status { margin-top: var(--sp-4); font-weight: 700; }
.form-status[data-state="ok"] { color: var(--accent-ink); }
.form-status[data-state="error"] { color: var(--destructive); }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--bg-raised-2); color: var(--fg-muted);
  padding-block: var(--sp-16) var(--sp-8);
}
.site-footer a { color: var(--fg); text-decoration: none; }
.site-footer a:hover { color: var(--accent); }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--sp-8);
  padding-bottom: var(--sp-12);
  border-bottom: 1px solid var(--border);
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h4 {
  font-family: var(--font-mono); font-size: var(--text-xs);
  text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-muted);
  margin-bottom: var(--sp-4);
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sp-2); }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--sp-4);
  padding-top: var(--sp-6); font-size: var(--text-xs);
}

/* ---------- Entrance motion (transform/opacity only, capped) ---------- */

/* Safe by default: fully visible with no JS. Only once main.js confirms it
   can actually run the reveal (adds .js-reveal to <html>) do elements start
   hidden and fade in via IntersectionObserver. This avoids ever shipping a
   blank section if a script fails to load. */
[data-reveal] { opacity: 1; transform: none; }
.js-reveal [data-reveal] {
  opacity: 0; transform: translateX(48px);
  transition: opacity var(--dur-entrance) var(--ease-out-expo),
              transform var(--dur-entrance) var(--ease-out-expo);
  transition-delay: var(--reveal-delay, 0ms);
}
.js-reveal [data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js-reveal [data-reveal] { opacity: 1; transform: none; transition-delay: 0ms; }
}

/* The hero headline gets its own, bigger entrance (kinetic personality: it
   should feel like it slides in and lands, not just fade). */
.hero h1[data-reveal] { transform: translateX(72px); transition-duration: 620ms; }

/* Stagger repeating groups so they cascade in rather than pop as a block.
   Kept to a short, capped budget (4 steps max), per the motion budget rule. */
.row-list-item:nth-child(1) { --reveal-delay: 0ms; }
.row-list-item:nth-child(2) { --reveal-delay: 90ms; }
.row-list-item:nth-child(3) { --reveal-delay: 180ms; }
.row-list-item:nth-child(4) { --reveal-delay: 270ms; }

.step:nth-child(1) { --reveal-delay: 0ms; }
.step:nth-child(2) { --reveal-delay: 90ms; }
.step:nth-child(3) { --reveal-delay: 180ms; }
.step:nth-child(4) { --reveal-delay: 270ms; }

.faq-item:nth-child(1) { --reveal-delay: 0ms; }
.faq-item:nth-child(2) { --reveal-delay: 70ms; }
.faq-item:nth-child(3) { --reveal-delay: 140ms; }
.faq-item:nth-child(4) { --reveal-delay: 210ms; }

.hero-index > div:nth-child(1) { --reveal-delay: 120ms; }
.hero-index > div:nth-child(2) { --reveal-delay: 200ms; }
.hero-index > div:nth-child(3) { --reveal-delay: 280ms; }
.hero-index > div:nth-child(4) { --reveal-delay: 360ms; }