/* Base + shared components (Navigation, Footer, Button, Section Intro, Metrics Strip,
   Before After, Closing CTA, Password Gate). Built on tokens.css. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
  margin: 0;
  background: var(--color-background-page);
  color: var(--color-text-primary);
  font-family: var(--font-family-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
}
body.is-locked { overflow: hidden; }

img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }
a { color: inherit; }
button { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--spacing-xs);
  z-index: 100;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-brand-primary);
  color: var(--color-brand-on-primary);
  border-radius: var(--radius-full);
}
.skip-link:focus { left: var(--spacing-xs); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: calc(var(--container-max) + 2 * var(--container-padding-x));
  margin-inline: auto;
  padding-inline: var(--container-padding-x);
}
.reading { max-width: var(--reading-max); }
.reading--center { margin-inline: auto; }

/* ---------- Type ---------- */
.heading {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-semibold);
  font-variation-settings: "SOFT" 0, "WONK" 1;
}
.heading em { font-style: italic; font-weight: var(--font-weight-regular); }

/* ---------- Button ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  min-height: 44px;
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  font-family: var(--font-family-body);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--motion-fast) ease-out, color var(--motion-fast) ease-out,
    border-color var(--motion-fast) ease-out;
}
.btn--md { padding: calc(var(--spacing-sm) - 2px) calc(var(--spacing-lg) - 2px); font-size: var(--font-size-base); line-height: var(--line-height-base); }
.btn--lg { padding: calc(var(--spacing-md) - 2px) calc(var(--spacing-xl) - 2px); font-size: var(--font-size-lg); line-height: var(--line-height-lg); }
.btn--primary { background: var(--color-brand-primary); color: var(--color-brand-on-primary); }
.btn--primary:hover { background: var(--color-brand-primary-hover); }
.btn--secondary { border-color: var(--color-text-primary); color: var(--color-text-primary); background: transparent; }
.btn--secondary:hover { background: var(--color-background-subtle); }
.btn--ghost { color: var(--color-text-link); background: transparent; }
.btn--ghost:hover { background: var(--color-background-subtle); }
.btn__icon { width: 20px; height: 20px; flex: none; }
.btn--lg .btn__icon { width: 24px; height: 24px; }

/* ---------- Navigation ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--color-background-page);
}
.site-nav__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--spacing-lg);
}
.wordmark {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  font-variation-settings: "SOFT" 0, "WONK" 1;
  font-size: var(--font-size-2xl);
  line-height: var(--line-height-2xl);
  text-decoration: none;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--spacing-xs) var(--spacing-md);
  border: 1.5px solid var(--color-text-primary);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  text-decoration: none;
  transition: background-color var(--motion-fast) ease-out, color var(--motion-fast) ease-out,
    border-color var(--motion-fast) ease-out;
}
/* Nav Link states (Figma): hover = lime; Active and Active Hover use the Primary button colours */
.nav-link:hover { background: var(--color-background-lime); }
.nav-link[aria-current="page"] { background: var(--color-brand-primary); border-color: var(--color-brand-primary); color: var(--color-brand-on-primary); }
.nav-link[aria-current="page"]:hover { background: var(--color-brand-primary-hover); border-color: var(--color-brand-primary-hover); }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}
.menu-toggle svg { display: block; margin: auto; }

/* ---------- Footer ---------- */
.site-footer {
  padding-block: var(--spacing-3xl);
  background: var(--color-background-subtle);
  border-top: 1px solid var(--color-border-subtle);
}
.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
}
.site-footer__brand { display: flex; flex-direction: column; gap: var(--spacing-xs); }
.site-footer .wordmark { font-size: var(--font-size-xl); line-height: var(--line-height-xl); }
.site-footer__copy { font-size: var(--font-size-sm); line-height: var(--line-height-sm); color: var(--color-text-muted); }

/* ---------- Section intro ---------- */
.section-intro {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-width: var(--reading-max);
  padding-top: var(--section-space);
  padding-bottom: var(--spacing-xl);
}
.section-intro__title { font-size: var(--font-size-5xl); line-height: var(--line-height-5xl); }
.section-intro__sub { font-size: var(--font-size-xl); line-height: var(--line-height-xl); color: var(--color-text-secondary); }

/* ---------- Metrics strip ---------- */
.metrics {
  display: grid;
  grid-auto-columns: 1fr;
  grid-auto-flow: column;
  margin: 0;
  padding: var(--spacing-xl) 0;
  list-style: none;
  border-block: 1px solid var(--color-border-subtle);
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding-inline: var(--spacing-sm);
  text-align: center;
}
.stat__value {
  font-size: var(--font-size-5xl);
  line-height: var(--line-height-5xl);
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.stat__label { font-size: var(--font-size-lg); line-height: var(--line-height-lg); color: var(--color-text-secondary); }

/* ---------- Before / After ---------- */
.before-after { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.before-after__label { font-size: var(--font-size-sm); line-height: var(--line-height-sm); font-weight: var(--font-weight-semibold); color: var(--color-text-secondary); }
.before-after__row { display: flex; align-items: center; gap: var(--spacing-lg); }
.before-after__value { display: flex; flex-direction: column; gap: var(--spacing-2xs); }
.before-after__num { font-size: var(--font-size-4xl); line-height: var(--line-height-4xl); letter-spacing: -0.02em; }
.before-after__cap { font-size: var(--font-size-sm); line-height: var(--line-height-sm); }
.before-after__value--before { color: var(--color-text-muted); }
.before-after__value--after { color: var(--color-olive-500); font-weight: var(--font-weight-semibold); }
.before-after__arrow { width: 32px; height: 24px; flex: none; }

/* ---------- Timeline + numbered List Item (shared) ---------- */
.timeline { margin: 0; padding: 0 0 var(--section-space); list-style: none; max-width: var(--reading-max); }
.timeline__item { display: flex; gap: var(--spacing-lg); }
.timeline__rail { display: flex; flex-direction: column; align-items: center; flex: 0 0 16px; }
.timeline__rail img { flex: none; }
.timeline__rail::after { content: ""; flex: 1; width: 2px; background: var(--color-border-default); }
.timeline__item:last-child .timeline__rail::after { display: none; }
.timeline__content { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: var(--spacing-2xs); padding-bottom: var(--spacing-2xl); }
.timeline__item:last-child .timeline__content { padding-bottom: 0; }
.timeline__date { font-size: var(--font-size-sm); line-height: var(--line-height-sm); font-weight: var(--font-weight-semibold); letter-spacing: 0.04em; color: var(--color-text-muted); }
.timeline__title { font-size: var(--font-size-2xl); line-height: var(--line-height-2xl); letter-spacing: -0.01em; }
.timeline__body { font-size: var(--font-size-lg); line-height: var(--line-height-lg); color: var(--color-text-secondary); }

.num-list { display: flex; flex-direction: column; gap: var(--spacing-lg); margin: 0; padding: 0 0 var(--section-space); list-style: none; max-width: var(--reading-max); }
.num-item { display: flex; gap: var(--spacing-lg); padding-block: var(--spacing-xl); border-top: 1px solid var(--color-border-subtle); }
.num-item__num { flex: 0 0 96px; font-size: var(--font-size-4xl); line-height: var(--line-height-4xl); letter-spacing: -0.02em; color: var(--color-brand-accent); }
.num-item__content { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: var(--spacing-xs); }
.num-item__title { font-size: var(--font-size-2xl); line-height: var(--line-height-2xl); letter-spacing: -0.01em; }
.num-item__body { font-size: var(--font-size-lg); line-height: var(--line-height-lg); color: var(--color-text-secondary); }


/* ---------- Closing CTA ---------- */
.closing-cta { padding-block: var(--section-space); }
.closing-cta__col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  max-width: var(--reading-max);
  margin-inline: auto;
  text-align: center;
}
.closing-cta__title { font-size: var(--font-size-5xl); line-height: var(--line-height-5xl); }
.closing-cta__text { font-size: var(--font-size-lg); line-height: var(--line-height-lg); color: var(--color-text-secondary); }

/* ---------- Password gate ---------- */
.gate {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: var(--container-padding-x);
  background: var(--color-scrim);
  opacity: 0;
  transition: opacity 250ms ease-out;
}
.gate[hidden] { display: none; }
.gate.is-open { opacity: 1; }
.gate-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  width: 100%;
  max-width: 520px;
  padding: var(--spacing-2xl);
  background: var(--color-background-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  text-align: center;
  transform: translateY(24px);
  transition: transform 250ms ease-out;
}
.gate.is-open .gate-card, .gate-card--page { transform: none; }
.gate-card__badge {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: var(--color-background-butter);
}
.gate-card__title { font-size: var(--font-size-2xl); line-height: var(--line-height-2xl); }
.gate-card__text { color: var(--color-text-secondary); }
.gate-card form { display: flex; flex-direction: column; gap: var(--spacing-lg); width: 100%; }
.gate-field {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-background-page);
  border: 2px solid var(--color-border-default);
  border-radius: var(--radius-md);
  text-align: left;
}
.gate-field:focus-within { border-color: var(--color-border-focus); }
.gate-field.is-error { border-color: var(--color-feedback-error); }
.gate-field input {
  flex: 1;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  font: inherit;
  color: var(--color-text-primary);
  outline: none;
}
.gate-field input::placeholder { color: var(--color-text-muted); }
.gate-field__toggle {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin: -10px -10px -10px 0;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}
.gate-error { margin-top: calc(-1 * var(--spacing-sm)); font-size: var(--font-size-sm); line-height: var(--line-height-sm); color: var(--color-feedback-error); text-align: left; }
.gate-error[hidden] { display: none; }
.gate-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--spacing-sm); }

/* ================= Tablet (768 to 1199) ================= */
@media (max-width: 1199px) {
  .site-nav__bar { padding-block: var(--spacing-md); }
  .section-intro { padding-bottom: var(--spacing-md); }
  .section-intro__title { font-size: var(--font-size-4xl); line-height: var(--line-height-4xl); }
  .stat__value { font-size: var(--font-size-4xl); line-height: var(--line-height-4xl); }
  .stat__label { font-size: var(--font-size-base); line-height: var(--line-height-base); }
  .closing-cta__title { font-size: var(--font-size-4xl); line-height: var(--line-height-4xl); }
}

/* ================= Mobile (under 768) ================= */
@media (max-width: 767px) {
  .site-nav__bar { padding-block: var(--spacing-sm); position: relative; }
  .wordmark { font-size: var(--font-size-xl); line-height: var(--line-height-xl); }
  .menu-toggle { display: block; }
  .site-nav .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--container-padding-x) var(--spacing-lg);
    background: var(--color-background-page);
    border-bottom: 1px solid var(--color-border-subtle);
  }
  .site-nav[data-open="true"] .nav-links { display: flex; }
  .site-nav .nav-link { width: 100%; font-size: var(--font-size-lg); }

  .site-footer { padding-block: var(--spacing-2xl); }
  .site-footer__inner { flex-direction: column; align-items: flex-start; gap: var(--spacing-lg); }
  .site-footer__brand { display: contents; }
  .site-footer .wordmark { order: 1; }
  .site-footer .nav-links { order: 2; }
  .site-footer__copy { order: 3; }
  .site-footer .nav-links { gap: var(--spacing-sm); }

  .section-intro__title { font-size: var(--font-size-3xl); line-height: var(--line-height-3xl); }
  .section-intro__sub { font-size: var(--font-size-lg); line-height: var(--line-height-lg); }

  .metrics { grid-auto-flow: row; grid-template-columns: repeat(2, 1fr); row-gap: var(--spacing-lg); }
  .before-after__num { font-size: var(--font-size-3xl); line-height: var(--line-height-3xl); }
  .before-after__row { gap: var(--spacing-md); }

  .closing-cta__title { font-size: var(--font-size-3xl); line-height: var(--line-height-3xl); }
  .closing-cta__text { font-size: var(--font-size-base); line-height: var(--line-height-base); }

  .gate-card { padding: var(--spacing-xl) var(--spacing-lg); }
}

/* ---------- Tap to zoom ---------- */
[data-zoom] { cursor: zoom-in; }
@media (min-width: 1200px) { [data-zoom] { cursor: default; } }
.zoom {
  width: 100vw;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: var(--spacing-md);
  border: 0;
  background: var(--color-background-inverse);
  overflow: auto;
}
.zoom::backdrop { background: var(--color-scrim); }
.zoom img { width: auto; max-width: none; min-width: 100%; height: auto; margin-top: 56px; }
.zoom__close {
  position: fixed;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: var(--radius-full);
  background: var(--color-background-page);
  font-size: var(--font-size-2xl);
  cursor: pointer;
}

@media (max-width: 767px) {
  .timeline__body, .num-item__body { font-size: var(--font-size-base); line-height: var(--line-height-base); }
  .num-item { flex-direction: column; gap: var(--spacing-sm); }
  .num-item__num { flex: none; }
}

/* Standalone gate page (served by the edge function) */
.gate-page { display: grid; place-items: center; min-height: calc(100dvh - 92px); padding-block: var(--spacing-2xl); }
@media (max-width: 767px) { .gate-page__links { display: none; } }

/* ---------- Motion ----------
   Everything below only applies once js/main.js adds .motion to <html>, which it skips when the
   visitor prefers reduced motion, so content is never hidden without JS. */

/* Scroll reveal: fade and rise, staggered by --i */
.motion [data-reveal] {
  opacity: 0;
  translate: 0 var(--motion-rise);
  transition: opacity var(--motion-slow) var(--ease-out), translate var(--motion-slow) var(--ease-out);
  transition-delay: calc(var(--i, 0) * var(--motion-stagger));
}
.motion [data-reveal="zoom"] { translate: 0; scale: 0.96; transition-property: opacity, scale; }
.motion [data-reveal].is-in { opacity: 1; translate: 0; scale: 1; }

/* Parallax: js writes --py (px) on [data-parallax]; `translate` stacks with any transform animation */
.motion [data-parallax] { translate: 0 calc(var(--py, 0) * 1px); will-change: translate; }

/* Timeline: the rail fills as you scroll and each dot pops when reached */
.motion .timeline__rail::after {
  background: linear-gradient(var(--color-border-focus), var(--color-border-focus)) top / 100% calc(var(--fill, 0) * 100%) no-repeat,
    var(--color-border-default);
}
.motion .timeline__rail img { transition: scale var(--motion-medium) var(--ease-out); }
.motion .timeline__item.is-reached .timeline__rail img { animation: dot-pop var(--motion-slow) var(--ease-out); }
@keyframes dot-pop { 40% { scale: 1.5; } }

/* Hover delights */
.btn__icon { transition: translate var(--motion-fast) var(--ease-out), rotate var(--motion-fast) var(--ease-out); }
.btn:hover .btn__icon[src*="arrow"] { translate: 3px 0; }
.btn:hover .btn__icon[src*="lock"] { animation: lock-jiggle 500ms var(--ease-in-out); }
@keyframes lock-jiggle { 25% { rotate: -14deg; } 50% { rotate: 10deg; } 75% { rotate: -6deg; } }
@media (prefers-reduced-motion: reduce) {
  .btn:hover .btn__icon { animation: none; translate: 0; }
}