/* =========================================================
   ZERIO — Digital Bastion design system
   Implements docs/specs/design.md: tonal architecture,
   editorial typography, no-border rule, round-four corners.
   ========================================================= */

:root {
  /* Surface hierarchy (light mode) */
  --surface:                    #fbf8fe;
  --surface-container-low:      #f6f2f8;
  --surface-container:          #f0ecf2;
  --surface-container-high:     #eae7ed;
  --surface-container-highest:  #e4e1e7;
  --surface-container-lowest:   #ffffff;

  /* Primary / secondary palette */
  --primary:                    #00193c;
  --primary-container:          #002d62;
  --secondary:                  #005ab7;
  --secondary-container:        #0072e5;
  --secondary-fixed:            #d7e2ff;
  --on-secondary-fixed:         #001b3f;
  --on-secondary-container:     #fefcff;

  /* On-colors */
  --on-background:              #1b1b1f;
  --on-surface:                 #1b1b1f;
  --on-surface-variant:         #43474f;

  /* Signals */
  --error:                      #ba1a1a;
  --error-container:            #ffdad6;
  --outline-variant:            #c4c6d1;
  --surface-tint:               #3e5e95;

  /* Dark-surface palette (hero / transformation) */
  --dark-bg:                    #00193c;
  --dark-bg-2:                  #002d62;
  --dark-surface:               #0b2350;
  --dark-on-bg:                 #ffffff;
  --dark-on-bg-variant:         #9fb4d8;

  /* Radii — Round Four */
  --radius:        0.5rem;
  --radius-lg:     0.75rem;
  --radius-xl:     1rem;

  /* Shadows — tinted with primary, never black */
  --shadow-modal: 0 24px 48px rgba(0, 25, 60, 0.08);
  --shadow-card:  0 12px 32px rgba(0, 25, 60, 0.06);
  --shadow-soft:  0 4px 16px  rgba(0, 25, 60, 0.04);

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* Type scale */
  --font-sans: 'Manrope', system-ui, -apple-system, Segoe UI, Roboto, Inter, sans-serif;
  --fs-display-lg: clamp(1.875rem, 4.2vw + 0.75rem, 5rem);
  --fs-display-md: clamp(2.25rem, 4vw + 0.75rem, 3.75rem);
  --fs-display-sm: clamp(1.75rem, 2.5vw + 0.75rem, 2.75rem);
  --fs-headline:   clamp(1.5rem, 1.2vw + 1rem, 2rem);
  --fs-title:      1.25rem;
  --fs-body-lg:    1.0625rem;
  --fs-body:       1rem;
  --fs-small:      0.875rem;
  --fs-label:      0.75rem;

  --container:     76rem;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.55;
  color: var(--on-background);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--secondary); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font: inherit; }
:focus-visible { outline: 2px solid var(--secondary-container); outline-offset: 3px; border-radius: var(--radius); }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 clamp(1rem, 3vw, 2rem); }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { margin: 0; letter-spacing: -0.02em; color: var(--primary); font-weight: 700; line-height: 1.08; }
p { margin: 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: var(--fs-label); font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--secondary);
}
.eyebrow--bright { color: #6ea8ff; }
.eyebrow--secondary { color: var(--secondary); }
.eyebrow-dot {
  width: 8px; height: 8px; border-radius: 999px;
  background: #6ea8ff; box-shadow: 0 0 0 4px rgba(110,168,255,0.18);
}

/* ---------- Buttons ---------- */
.btn {
  --btn-pad-y: 0.875rem;
  --btn-pad-x: 1.5rem;
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem;
  padding: var(--btn-pad-y) var(--btn-pad-x);
  border-radius: var(--radius);
  font-weight: 700;
  font-size: var(--fs-body);
  letter-spacing: -0.01em;
  cursor: pointer;
  border: 0;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
  color: #ffffff;
}
.btn--primary:hover { box-shadow: var(--shadow-card); }
.btn--primary.is-active { box-shadow: 0 0 0 3px rgba(0, 90, 183, 0.35); }
.btn--ghost {
  background: transparent;
  color: var(--secondary);
  box-shadow: inset 0 0 0 2px rgba(196, 198, 209, 0.15);
}
.btn--ghost:hover { background: rgba(62, 94, 149, 0.05); }
.page--landing .btn--ghost,
.page--register .btn--ghost,
.page--confirmation .btn--ghost,
.page--status .btn--ghost,
.hero .btn--ghost,
.transform .btn--ghost { color: #ffffff; box-shadow: inset 0 0 0 2px rgba(255,255,255,0.22); }
.section--light .btn--ghost { color: var(--secondary); box-shadow: inset 0 0 0 2px rgba(196, 198, 209, 0.3); }
.btn--compact { --btn-pad-y: 0.625rem; --btn-pad-x: 1rem; font-size: var(--fs-small); }
.btn--large { --btn-pad-y: 1.0625rem; --btn-pad-x: 1.75rem; font-size: var(--fs-body-lg); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(0, 25, 60, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-5);
  min-height: 72px;
}
.brand { display: inline-flex; align-items: center; gap: 0.625rem; color: #ffffff; font-weight: 800; letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.brand__logo {
  height: 42px;
  width: auto;
  display: block;
}
.brand__logo--footer { height: 38px; }
.site-nav { display: none; gap: var(--space-6); }
.site-nav__link { color: rgba(255,255,255,0.78); font-weight: 500; font-size: var(--fs-small); letter-spacing: 0.01em; }
.site-nav__link:hover { color: #ffffff; text-decoration: none; }
@media (min-width: 860px) { .site-nav { display: inline-flex; } }

/* Actions group: language toggle + primary CTA. */
.site-header__actions { display: inline-flex; align-items: center; gap: var(--space-3); }

/* Language toggle — current locale highlighted, other locale links to ?lang=. */
.lang-toggle {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.5rem 0.75rem;
  background: rgba(255,255,255,0.08);
  border-radius: 999px;
  color: rgba(255,255,255,0.7);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: background 0.15s ease, color 0.15s ease;
  min-height: 32px;
}
.lang-toggle:hover { text-decoration: none; background: rgba(255,255,255,0.16); color: #ffffff; }
.lang-toggle__current { color: #ffffff; }
.lang-toggle__sep { color: rgba(255,255,255,0.35); font-weight: 400; }
.lang-toggle__other { color: rgba(255,255,255,0.55); }
.lang-toggle:hover .lang-toggle__other { color: #ffffff; }
@media (max-width: 480px) {
  .lang-toggle { padding: 0.5rem 0.625rem; font-size: 0.6875rem; letter-spacing: 0.12em; }
}

/* ---------- Sections ---------- */
.section { padding: var(--space-9) 0; }
.section--light { background: var(--surface); }
.section--surface { background: var(--surface-container-low); }
.section--dark { background: var(--dark-bg); color: #ffffff; position: relative; overflow: hidden; }
.section--dark h1, .section--dark h2, .section--dark h3 { color: #ffffff; }
.section__head { max-width: 48rem; margin-bottom: var(--space-7); display: grid; gap: var(--space-3); }
.section__head--center { margin-left: auto; margin-right: auto; text-align: center; justify-items: center; }
.section__title { font-size: var(--fs-display-sm); }
.section__lead { color: var(--on-surface-variant); font-size: var(--fs-body-lg); max-width: 42rem; }
.section__head--center .section__lead { margin-left: auto; margin-right: auto; }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  color: #ffffff;
  background: radial-gradient(1200px 600px at 20% -10%, var(--primary-container) 0%, transparent 60%),
              linear-gradient(180deg, var(--primary) 0%, #001229 100%);
  overflow: hidden;
  padding: clamp(4rem, 9vw, 7rem) 0 clamp(4rem, 8vw, 6rem);
}
.hero--full { padding: clamp(1rem, 2vw, 1.75rem) 0 clamp(4rem, 8vw, 6rem); min-height: clamp(36rem, 78vh, 48rem); }
.hero__bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hero__supply-chain {
  /* Full-bleed light-stream illustration. Low opacity keeps the
     hero text dominant per the design brief. */
  position: absolute; inset: 0;
  background-image: url('/static/img/hero-supply-chain.svg');
  background-repeat: no-repeat;
  background-position: center 60%;
  background-size: cover;
  opacity: 0.22;
  mask-image: linear-gradient(180deg, transparent 0%, #000 18%, #000 88%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 18%, #000 88%, transparent 100%);
}
.hero__veil {
  /* A soft directional darkening behind the headline so the type
     stays high-contrast without flattening the illustration. */
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(0, 18, 41, 0.55) 0%, rgba(0, 18, 41, 0.15) 55%, rgba(0, 18, 41, 0) 100%),
    linear-gradient(180deg, rgba(0, 18, 41, 0.0) 30%, rgba(0, 18, 41, 0.4) 100%);
}
.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(110,168,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(110,168,255,0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 40%, transparent 80%);
  opacity: 0.6;
}
.hero__orb { position: absolute; border-radius: 999px; filter: blur(60px); opacity: 0.4; }
.hero__orb--a { top: -120px; right: -80px;  width: 420px; height: 420px; background: radial-gradient(circle, #0072e5 0%, transparent 70%); }
.hero__orb--b { bottom: -160px; left: -120px; width: 480px; height: 480px; background: radial-gradient(circle, #002d62 0%, transparent 70%); }
.hero__inner { position: relative; max-width: 64rem; }
.hero__copy { min-width: 0; max-width: 44rem; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 0.625rem;
  padding: 0.5rem 0.875rem;
  background: rgba(255,255,255,0.06);
  border-radius: 999px;
  color: #c8d7ef;
  font-size: var(--fs-label); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
}
.hero__title {
  display: grid; gap: 0.125em;
  margin: var(--space-5) 0 var(--space-5);
  font-size: var(--fs-display-lg);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 800;
  color: #ffffff;
}
.hero__title > span { display: block; white-space: nowrap; }
.hero__title--accent { color: #6ea8ff; }
.hero__sub {
  max-width: 38rem;
  font-size: var(--fs-body-lg);
  color: rgba(255,255,255,0.78);
  margin-bottom: var(--space-6);
}
.hero__ctas { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.hero__stats {
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr));
  gap: var(--space-5);
  margin: var(--space-8) 0 0;
  padding-top: var(--space-6);
  position: relative;
}
@media (max-width: 860px) { .hero__stats { grid-template-columns: repeat(2, minmax(0,1fr)); } }
.hero__stats::before {
  /* Tonal shift in lieu of a top border (No-Line Rule). */
  content: ''; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: rgba(196, 198, 209, 0.15);
}
.hero__stats dt { color: rgba(255,255,255,0.6); font-size: var(--fs-label); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; }
.hero__stats dd { margin: 0.25rem 0 0; color: #ffffff; font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; }
@media (max-width: 480px) { .hero__stats { grid-template-columns: 1fr; } }

/* ---------- VALUE PROPOSITION ---------- */
.value__points {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: var(--space-5);
  grid-template-columns: repeat(2, minmax(0,1fr));
}
@media (max-width: 860px) { .value__points { grid-template-columns: 1fr; } }
.value__point {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-soft);
  display: grid; grid-template-columns: auto 1fr; gap: var(--space-5);
}
.value__num {
  font-size: 1.75rem; font-weight: 800; letter-spacing: -0.02em;
  color: var(--secondary); font-feature-settings: 'tnum';
}
.value__copy h3 { color: var(--primary); font-size: var(--fs-title); margin-bottom: var(--space-2); }
.value__copy p { color: var(--on-surface-variant); }

/* ---------- PLATFORM ---------- */
.platform__grid {
  display: grid; gap: var(--space-5);
  grid-template-columns: repeat(6, minmax(0,1fr));
}
.module {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-soft);
  color: var(--primary);
  grid-column: span 2;
  display: flex; flex-direction: column; gap: var(--space-3);
}
.module--large { grid-column: span 3; }
.module__icon { color: var(--secondary); }
.module__label { font-size: var(--fs-label); font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--secondary); }
.module h3 { font-size: var(--fs-title); }
.module p { color: var(--on-surface-variant); font-size: var(--fs-body); }
@media (max-width: 960px) { .module, .module--large { grid-column: span 3; } }
@media (max-width: 620px) { .module, .module--large { grid-column: span 6; } }

/* ---------- TRANSFORMATION ---------- */
.transform { padding: clamp(5rem, 9vw, 8rem) 0; text-align: center; }
.transform__bg { position: absolute; inset: 0; pointer-events: none; }
.transform__orb {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 720px; height: 720px; border-radius: 999px; filter: blur(80px);
  background: radial-gradient(circle, rgba(0,114,229,0.35) 0%, transparent 60%);
}
.transform__inner { position: relative; max-width: 60rem; margin: 0 auto; }
.transform__title {
  margin: var(--space-4) 0 var(--space-5);
  font-size: var(--fs-display-md);
  letter-spacing: -0.03em; line-height: 1.02; font-weight: 800;
  display: grid; gap: 0.05em;
}
.transform__from { color: rgba(255,255,255,0.55); }
.transform__to   { color: #ffffff; }
.transform__lead {
  max-width: 46rem; margin: 0 auto var(--space-6);
  color: rgba(255,255,255,0.78); font-size: var(--fs-body-lg);
}

/* ---------- REGISTER ---------- */
.register__hero {
  position: relative;
  color: #ffffff;
  background: radial-gradient(900px 500px at 80% -20%, var(--primary-container) 0%, transparent 65%),
              linear-gradient(180deg, var(--primary) 0%, #001229 100%);
  padding: clamp(3rem, 6vw, 5rem) 0;
  overflow: hidden;
}
.register__hero-bg { position: absolute; inset: 0; background-image: linear-gradient(rgba(110,168,255,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(110,168,255,0.05) 1px, transparent 1px); background-size: 48px 48px; opacity: 0.7; mask-image: radial-gradient(ellipse at 70% 20%, #000 30%, transparent 80%); -webkit-mask-image: radial-gradient(ellipse at 70% 20%, #000 30%, transparent 80%); }
.register__hero-inner { position: relative; max-width: 56rem; }
.register__title { color: #ffffff; font-size: var(--fs-display-sm); font-weight: 800; letter-spacing: -0.03em; margin: var(--space-4) 0 var(--space-4); }
.register__lead { color: rgba(255,255,255,0.78); font-size: var(--fs-body-lg); max-width: 42rem; }

.register__body { background: var(--surface-container-low); padding: var(--space-8) 0 var(--space-9); }
.register__layout {
  display: grid; gap: var(--space-6);
  grid-template-columns: minmax(0, 20rem) 1fr;
  align-items: start;
}
@media (max-width: 900px) { .register__layout { grid-template-columns: 1fr; } }

.intro-card {
  position: sticky; top: calc(72px + var(--space-5));
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-soft);
  display: grid; gap: var(--space-3);
}
.intro-card h2 { color: var(--primary); font-size: var(--fs-headline); }
.intro-card > p { color: var(--on-surface-variant); }
.intro-card__list { list-style: none; margin: var(--space-3) 0 0; padding: 0; display: grid; gap: var(--space-2); }
.intro-card__list li {
  display: grid; grid-template-columns: auto 1fr; gap: var(--space-3); align-items: center;
  padding: var(--space-3);
  border-radius: var(--radius);
  background: var(--surface-container-low);
  transition: background 0.2s ease;
}
.intro-card__list li.is-active { background: var(--surface-container-high); }
.intro-card__list li.is-done { background: var(--secondary-fixed); color: var(--on-secondary-fixed); }
.intro-card__list li.is-done .intro-card__num { color: var(--on-secondary-fixed); }
.intro-card__num { font-size: 0.875rem; font-weight: 700; color: var(--secondary); font-feature-settings: 'tnum'; min-width: 1.5rem; }
.intro-card__name { font-weight: 600; color: var(--primary); font-size: var(--fs-small); }
.intro-card__hint { font-size: 0.8rem; color: var(--on-surface-variant); }

.register__main { min-width: 0; }
.wizard {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  box-shadow: var(--shadow-card);
  display: grid; gap: var(--space-6);
}
.wizard__progress { display: flex; gap: 0.375rem; scroll-margin-top: 88px; }
.wizard__tick { flex: 1; height: 4px; border-radius: 999px; background: var(--surface-container-high); transition: background 0.25s ease; }
.wizard__tick.is-active { background: var(--secondary-container); }
.wizard__tick.is-done { background: var(--secondary); }

.wizard__step { border: 0; margin: 0; padding: 0; display: grid; gap: var(--space-6); }
.wizard__step[hidden] { display: none !important; }
.wizard__step-head { display: grid; gap: var(--space-2); }
.wizard__heading { color: var(--primary); font-size: var(--fs-headline); }
.wizard__sub { color: var(--on-surface-variant); }
.wizard__fields { display: grid; gap: var(--space-5); }
.wizard__fields[data-cols="2"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: var(--space-5);
  row-gap: var(--space-5);
  /* Each field sizes to its own content and pins to the top of its
     cell so inputs across a row stay on the same baseline even when
     one side has a hint line and the other doesn't. */
  align-items: start;
}
@media (max-width: 720px) {
  .wizard__fields[data-cols="2"] { grid-template-columns: 1fr; }
}
.field--full { grid-column: 1 / -1; }
.field__hint {
  color: var(--on-surface-variant);
  font-size: var(--fs-small);
  margin-top: 0.125rem;
}
.wizard__actions { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); }

/* Inputs — no border, background-fill per design.md */
.field { display: grid; gap: 0.5rem; }
.field__label {
  font-weight: 700;
  color: var(--secondary);
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.field__required { color: var(--secondary); margin-left: 0.2rem; }
.input {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--surface-container-highest);
  border: 0;
  border-radius: var(--radius);
  font: inherit;
  color: var(--on-background);
  transition: background 0.2s ease, box-shadow 0.2s ease;
  box-shadow: inset 0 0 0 2px transparent;
  -webkit-appearance: none; appearance: none;
}
.input:focus { outline: none; background: var(--surface-container-lowest); box-shadow: inset 0 0 0 2px var(--secondary); }
.input--select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'><path d='M1 1 L6 7 L11 1' stroke='%2343474f' stroke-width='2' fill='none' stroke-linecap='square' stroke-linejoin='miter'/></svg>");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 12px 8px;
  padding-right: 2.5rem;
}
.field--error .input { background: var(--error-container); box-shadow: inset 0 0 0 2px var(--error); }
.field__error { color: var(--error); font-size: var(--fs-small); min-height: 1rem; }

/* Radio / checkbox options */
.field__options { display: grid; gap: var(--space-2); }
.option {
  display: grid; grid-template-columns: auto 1fr; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--surface-container-low);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s ease, box-shadow 0.15s ease;
}
.option:hover { background: var(--surface-container-high); }
.option input { position: absolute; opacity: 0; pointer-events: none; }
.option__check {
  width: 20px; height: 20px; border-radius: 6px;
  background: var(--surface-container-highest);
  box-shadow: inset 0 0 0 2px transparent;
  display: inline-grid; place-items: center;
  transition: background 0.15s ease, box-shadow 0.15s ease;
  flex: none;
}
.option input[type="radio"] + .option__check { border-radius: 999px; }
/* Checked-state styling — progressive enhancement.
   Modern browsers use :has() on the parent. As a fallback for Firefox
   < 121 and Safari < 15.4, the sibling-selector rule below applies
   the same visual state (input is a sibling of .option__check in the
   label markup). */
.option input:checked ~ .option__check {
  background: var(--secondary-container);
  box-shadow: inset 0 0 0 4px var(--secondary-fixed);
}
.option:has(input:checked) { background: var(--secondary-fixed); }
.option:has(input:checked) .option__check { background: var(--secondary-container); box-shadow: inset 0 0 0 4px var(--secondary-fixed); }
.option:has(input:focus-visible) { box-shadow: 0 0 0 3px rgba(0, 90, 183, 0.25); }
.option input:focus-visible ~ .option__check { box-shadow: inset 0 0 0 2px var(--secondary); }
.option__label { color: var(--primary); font-weight: 500; }

.form-status {
  padding: var(--space-4);
  border-radius: var(--radius);
  background: var(--surface-container-high);
  color: var(--on-surface-variant);
}
.form-status[data-tone="error"] { background: var(--error-container); color: var(--error); }
.form-status[data-tone="success"] { background: var(--secondary-fixed); color: var(--on-secondary-fixed); }

/* ---------- CONFIRMATION ---------- */
.confirmation__hero {
  position: relative;
  color: #ffffff;
  background: radial-gradient(900px 500px at 50% -20%, var(--secondary-container) 0%, transparent 60%),
              linear-gradient(180deg, var(--primary) 0%, #001229 100%);
  padding: clamp(4rem, 8vw, 6rem) 0;
  overflow: hidden;
  text-align: center;
}
.confirmation__bg { position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(ellipse at 50% 0%, rgba(110,168,255,0.2) 0%, transparent 50%);
}
.confirmation__inner { position: relative; max-width: 52rem; margin: 0 auto; }
.confirmation__seal { color: #6ea8ff; margin: 0 auto var(--space-4); width: 64px; height: 64px; }
.confirmation__title { color: #ffffff; font-size: var(--fs-display-sm); font-weight: 800; letter-spacing: -0.03em; margin: var(--space-4) 0; }
.confirmation__company { color: rgba(255,255,255,0.7); font-weight: 600; letter-spacing: 0.04em; margin-bottom: var(--space-4); }
.confirmation__badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  border-radius: 999px;
  font-size: var(--fs-label); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
}
.confirmation__badge--potentially_qualified { background: rgba(255,255,255,0.1); color: #c8d7ef; }
.confirmation__badge--not_qualified { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.7); }
.confirmation__badge-dot { width: 8px; height: 8px; border-radius: 999px; background: currentColor; }
.confirmation__lead { color: rgba(255,255,255,0.85); font-size: var(--fs-body-lg); max-width: 38rem; margin: var(--space-4) auto 0; }

.confirmation__body { background: var(--surface-container-low); padding: var(--space-8) 0 var(--space-9); }
.confirmation__layout {
  display: grid; gap: var(--space-5);
  grid-template-columns: 1.4fr 1fr;
}
@media (max-width: 860px) { .confirmation__layout { grid-template-columns: 1fr; } }
.confirmation__card { background: var(--surface-container-lowest); border-radius: var(--radius-lg); padding: var(--space-7); box-shadow: var(--shadow-soft); }
.confirmation__card h2 { color: var(--primary); font-size: var(--fs-headline); margin-bottom: var(--space-4); }
.confirmation__card p { color: var(--on-surface-variant); margin-bottom: var(--space-3); }
.confirmation__list { list-style: none; margin: 0 0 var(--space-3); padding: 0; display: grid; gap: var(--space-2); }
.confirmation__list li {
  padding: var(--space-3) var(--space-4);
  background: var(--surface-container-low);
  border-radius: var(--radius);
  color: var(--primary); font-weight: 500;
}
.confirmation__ref { margin-top: var(--space-5); padding: var(--space-4); background: var(--surface-container-low); border-radius: var(--radius); }
.confirmation__ref code { display: block; margin-top: 0.25rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--primary); font-size: var(--fs-small); word-break: break-all; }
.confirmation__aside { background: var(--surface-container-lowest); border-radius: var(--radius-lg); padding: var(--space-7); box-shadow: var(--shadow-soft); display: grid; gap: var(--space-3); align-content: start; }
.confirmation__aside h3 { color: var(--primary); font-size: var(--fs-title); }
.confirmation__aside p { color: var(--on-surface-variant); }

/* ---------- STATUS (404/500) ---------- */
.status { background: var(--dark-bg); color: #ffffff; min-height: calc(100vh - 72px); display: grid; place-items: center; padding: var(--space-9) 0; }
.status__inner { text-align: center; max-width: 42rem; margin: 0 auto; display: grid; gap: var(--space-4); }
.status__title { color: #ffffff; font-size: var(--fs-display-sm); }
.status__lead { color: rgba(255,255,255,0.75); font-size: var(--fs-body-lg); }
.status__ctas { display: flex; gap: var(--space-3); justify-content: center; flex-wrap: wrap; }

/* ---------- FOOTER ---------- */
.site-footer { background: var(--primary); color: rgba(255,255,255,0.75); padding: var(--space-7) 0 var(--space-6); }
.site-footer__brand { display: grid; gap: var(--space-3); align-content: start; }
.site-footer__inner { display: grid; gap: var(--space-6); grid-template-columns: 1.4fr 1fr; }
@media (max-width: 760px) { .site-footer__inner { grid-template-columns: 1fr; } }
.site-footer__tagline { color: rgba(255,255,255,0.65); max-width: 28rem; }
.site-footer__meta { display: grid; gap: var(--space-4); align-content: start; }
.site-footer__legal { color: rgba(255,255,255,0.55); font-size: var(--fs-small); }
.site-footer__links { display: flex; gap: var(--space-5); flex-wrap: wrap; }
.site-footer__links a { color: rgba(255,255,255,0.8); font-size: var(--fs-small); }
.site-footer__links a:hover { color: #ffffff; }

/* ---------- PLATFORM IN ACTION ---------- */
.showcase__grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--space-6);
}
.showcase__item {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: var(--space-4);
  align-content: start;
}
/* Layout variants */
.showcase__item--wide  { grid-column: span 6; grid-template-columns: 1.2fr 1fr; align-items: center; gap: var(--space-6); }
.showcase__item--third { grid-column: span 2; }
.showcase__item--wide .showcase__figure { margin: 0; }

@media (max-width: 1100px) {
  .showcase__item--third { grid-column: span 3; }
}
@media (max-width: 760px) {
  .showcase__grid { grid-template-columns: 1fr; }
  .showcase__item, .showcase__item--wide, .showcase__item--third {
    grid-column: 1 / -1;
    grid-template-columns: 1fr;
  }
}

.showcase__figure {
  margin: 0;
  padding: var(--space-5);
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  place-items: center;
  min-height: 220px;
}
.showcase__figure img {
  width: 100%;
  max-width: 620px;
  height: auto;
  display: block;
  border-radius: var(--radius);
  /* Soft tonal lift, never a border. */
  filter: drop-shadow(0 14px 32px rgba(0, 25, 60, 0.08));
}
.showcase__body h3 {
  color: var(--primary);
  font-size: var(--fs-title);
  margin-top: var(--space-2);
}
.showcase__body p { color: var(--on-surface-variant); }

/* Feature card — paper → digital */
.showcase__item--feature .showcase__figure--feature {
  background: linear-gradient(135deg, var(--surface-container-low) 0%, var(--secondary-fixed) 100%);
  min-height: 320px;
}
.showcase__item--feature h3 {
  font-size: var(--fs-headline);
}
.showcase__benefits {
  list-style: none; padding: 0; margin: var(--space-3) 0 0;
  display: grid; gap: var(--space-2);
}
.showcase__benefits li {
  display: grid; grid-template-columns: auto 1fr; gap: var(--space-3); align-items: start;
  padding: var(--space-3) var(--space-4);
  background: var(--surface-container-low);
  border-radius: var(--radius);
  color: var(--primary);
  font-weight: 500;
  font-size: var(--fs-body);
}
.showcase__benefit-mark {
  display: inline-grid; place-items: center;
  width: 22px; height: 22px;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 800;
  flex: none;
}

/* ---------- EXPO CAMPAIGN PAGE ---------- */
.expo__hero {
  position: relative;
  color: #ffffff;
  background: radial-gradient(1200px 600px at 20% -10%, var(--primary-container) 0%, transparent 60%),
              linear-gradient(180deg, var(--primary) 0%, #001229 100%);
  overflow: hidden;
  padding: clamp(1rem, 2vw, 1.75rem) 0 clamp(3rem, 6vw, 5rem);
}
.expo__hero-bg { position: absolute; inset: 0; pointer-events: none; }
.expo__hero-bg .hero__grid,
.expo__hero-bg .hero__orb--a,
.expo__hero-bg .hero__orb--b { position: absolute; }
.expo__hero-bg .hero__grid {
  inset: 0;
  background-image:
    linear-gradient(rgba(110,168,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(110,168,255,0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 40%, transparent 80%);
}
.expo__hero-bg .hero__orb { border-radius: 999px; filter: blur(60px); opacity: 0.55; }
.expo__hero-bg .hero__orb--a { top: -120px; right: -80px; width: 420px; height: 420px; background: radial-gradient(circle, #0072e5 0%, transparent 70%); }
.expo__hero-bg .hero__orb--b { bottom: -160px; left: -120px; width: 480px; height: 480px; background: radial-gradient(circle, #002d62 0%, transparent 70%); }
.expo__hero-inner { position: relative; max-width: 64rem; }
.expo__eyebrow {
  display: inline-flex; align-items: center; gap: 0.625rem;
  padding: 0.5rem 0.875rem;
  background: rgba(255,255,255,0.06);
  border-radius: 999px;
  color: #c8d7ef;
  font-size: var(--fs-label); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
}
.expo__title {
  display: grid; gap: 0.05em;
  margin: var(--space-5) 0 var(--space-5);
  font-size: var(--fs-display-lg);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 800;
  color: #ffffff;
}
.expo__title > span { display: block; }
.expo__title--accent { color: #6ea8ff; }
.expo__lead {
  max-width: 40rem;
  color: rgba(255,255,255,0.8);
  font-size: var(--fs-body-lg);
  margin: 0 0 var(--space-6);
}
.expo__ctas { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-top: var(--space-6); }

/* Promo card on expo landing */
.promo-card {
  display: grid;
  grid-template-columns: minmax(0, 22rem) 1fr;
  gap: 0;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 54rem;
  box-shadow: var(--shadow-modal);
}
@media (max-width: 760px) { .promo-card { grid-template-columns: 1fr; } }
.promo-card__col { padding: var(--space-6); }
.promo-card__col--code {
  background: linear-gradient(135deg, var(--secondary-container) 0%, var(--secondary) 100%);
  color: #ffffff;
  display: grid; align-content: center; gap: var(--space-3);
}
.promo-card__col--detail { color: #ffffff; }
.promo-card__eyebrow {
  font-size: var(--fs-label); font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: rgba(255,255,255,0.8);
}
.promo-card__code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800; letter-spacing: 0.02em;
  color: #ffffff;
  line-height: 1;
}
.promo-card__copy {
  justify-self: start;
  padding: 0.75rem 1.25rem;
  background: rgba(255,255,255,0.16);
  color: #ffffff;
  border: 0;
  border-radius: var(--radius);
  font-weight: 700; font-size: var(--fs-small);
  min-height: 44px;
  cursor: pointer;
  transition: background 0.15s ease;
}
.promo-card__copy:hover { background: rgba(255,255,255,0.28); }
.promo-card__copy.is-copied { background: #ffffff; color: var(--secondary); }
.promo-card__discount {
  font-size: clamp(1.75rem, 2.5vw, 2.25rem);
  font-weight: 800; letter-spacing: -0.02em;
  color: #6ea8ff;
}
.promo-card__label {
  font-size: var(--fs-title);
  color: #ffffff;
  margin-top: var(--space-1);
  font-weight: 600;
}
.promo-card__terms {
  margin-top: var(--space-3);
  color: #ffffff;
  font-size: var(--fs-small);
  max-width: 32rem;
}
.promo-card__expires {
  grid-column: 1 / -1;
  display: flex; align-items: center; gap: 0.625rem;
  padding: var(--space-3) var(--space-6);
  background: rgba(255,255,255,0.06);
  color: #ffffff;
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.promo-card__expires strong { font-weight: 800; color: #ffffff; }
.promo-card__expires-dot {
  width: 8px; height: 8px; border-radius: 999px;
  background: #ffcf5c;
  box-shadow: 0 0 0 4px rgba(255, 207, 92, 0.2);
  animation: pulse-warn 2.2s ease-in-out infinite;
  flex: none;
}
@keyframes pulse-warn {
  0%, 100% { box-shadow: 0 0 0 4px rgba(255, 207, 92, 0.2); }
  50%      { box-shadow: 0 0 0 8px rgba(255, 207, 92, 0.05); }
}

.promo-banner__expires {
  margin-top: 0.25rem;
  font-size: var(--fs-label);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffcf5c;
}

.promo-saved__expires {
  display: inline-block;
  margin-top: var(--space-2);
  padding: 0.25rem 0.625rem;
  background: rgba(255,255,255,0.14);
  border-radius: 999px;
  color: #ffffff;
  font-size: var(--fs-label);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Proof points + steps on expo */
.expo__points { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-3); }
.expo__points li {
  padding: var(--space-4) var(--space-5);
  background: var(--surface-container-lowest);
  border-radius: var(--radius);
  color: var(--primary);
  font-size: var(--fs-body-lg);
  box-shadow: var(--shadow-soft);
}
.expo__steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: var(--space-5); }
@media (max-width: 860px) { .expo__steps { grid-template-columns: 1fr; } }
.expo__steps li {
  background: var(--surface-container-lowest);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  display: grid; gap: var(--space-2);
}
.expo__step-num { font-size: 1.75rem; font-weight: 800; color: var(--secondary); letter-spacing: -0.02em; }
.expo__steps h3 { color: var(--primary); font-size: var(--fs-title); }
.expo__steps p { color: var(--on-surface-variant); }

/* Promo banner on pre-register */
.promo-banner {
  display: inline-grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4) var(--space-5);
  margin-top: var(--space-5);
  background: linear-gradient(135deg, var(--secondary-container) 0%, var(--secondary) 100%);
  border-radius: var(--radius-lg);
  color: #ffffff;
  box-shadow: var(--shadow-card);
  max-width: 36rem;
}
.promo-banner__mark {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 999px;
  background: rgba(255,255,255,0.18);
  color: #ffffff;
}
.promo-banner__eyebrow { font-size: var(--fs-label); font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: rgba(255,255,255,0.85); }
.promo-banner__code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 1.375rem; font-weight: 800; letter-spacing: 0.02em; }
.promo-banner__label { color: rgba(255,255,255,0.85); font-size: var(--fs-small); }

/* Promo card on confirmation */
.promo-saved {
  margin-top: var(--space-5);
  padding: var(--space-5);
  background: linear-gradient(135deg, var(--secondary-container) 0%, var(--secondary) 100%);
  border-radius: var(--radius-lg);
  color: #ffffff;
}
.promo-saved .eyebrow { color: rgba(255,255,255,0.85); }
.promo-saved__code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 1.75rem; font-weight: 800; margin-top: 0.25rem; }
.promo-saved__label { font-size: var(--fs-title); font-weight: 600; margin-top: 0.25rem; }
.promo-saved__terms { margin-top: var(--space-3); color: rgba(255,255,255,0.82); font-size: var(--fs-small); }

/* ---------- REVIEW STEP ---------- */
.wizard__tick--review { background: var(--secondary-fixed); }
.wizard__tick--review.is-active { background: var(--secondary-container); }

.review { display: grid; gap: var(--space-4); }
.review__group {
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-4);
}
.review__group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.review__group-head > div {
  display: flex; align-items: center; gap: var(--space-3);
  min-width: 0;
}
.review__group-num {
  display: inline-grid; place-items: center;
  width: 32px; height: 32px;
  background: var(--secondary-container);
  color: #ffffff;
  border-radius: 999px;
  font-weight: 800; font-size: 0.8125rem;
  font-feature-settings: 'tnum';
  flex: none;
}
.review__group-title {
  color: var(--primary);
  font-size: var(--fs-title);
  margin: 0;
}
.review__edit {
  background: var(--surface-container-lowest);
  color: var(--secondary);
  border: 0;
  padding: 0.625rem 1rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: var(--fs-small);
  cursor: pointer;
  min-height: 44px;
  min-width: 72px;
  transition: background 0.15s ease, color 0.15s ease;
}
.review__edit:hover { background: var(--secondary); color: #ffffff; }

.review__list { margin: 0; padding: 0; display: grid; gap: var(--space-2); }
.review__item {
  display: grid;
  grid-template-columns: minmax(10rem, 16rem) 1fr;
  gap: var(--space-3) var(--space-4);
  padding: var(--space-3);
  background: var(--surface-container-lowest);
  border-radius: var(--radius);
  align-items: baseline;
}
.review__item dt {
  color: var(--secondary);
  font-size: var(--fs-label);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.review__item dd {
  margin: 0;
  color: var(--primary);
  font-weight: 500;
  word-break: break-word;
}
.review__empty { color: var(--on-surface-variant); font-style: italic; font-weight: 400; }

@media (max-width: 620px) {
  .review__item { grid-template-columns: 1fr; gap: var(--space-1); }
  .review__item dt { font-size: 0.6875rem; }
}

/* ---------- RESPONSIVE PASS ---------- */

/* Narrower headers on small screens. */
@media (max-width: 480px) {
  .site-header__inner { min-height: 64px; gap: var(--space-3); }
  .brand__logo { height: 32px; }
  .btn--compact { --btn-pad-y: 0.625rem; --btn-pad-x: 0.875rem; font-size: 0.8125rem; min-height: 44px; }
}

/* Tighter hero on phones — keep the art atmospheric, give the text room. */
@media (max-width: 720px) {
  .hero--full { min-height: clamp(24rem, 64vh, 36rem); padding-bottom: clamp(3rem, 7vw, 5rem); }
  .hero__supply-chain { opacity: 0.14; background-position: center bottom; }
  .hero__title { margin-top: var(--space-4); }
  .hero__stats { margin-top: var(--space-6); padding-top: var(--space-5); }
}
/* Allow the hero title to wrap on the narrowest phones — nowrap looks
   great on tablet+ but "CTPAT + AEO compliance." overflows at 320px. */
@media (max-width: 480px) {
  .hero__title > span { white-space: normal; }
}

/* Sections — reduce vertical rhythm on mobile so more fits above the fold. */
@media (max-width: 720px) {
  .section { padding: clamp(3rem, 11vw, 6rem) 0; }
  .section__head { margin-bottom: var(--space-6); }
  .value__point { padding: var(--space-5); }
  .showcase__figure { min-height: 180px; padding: var(--space-4); }
  .showcase__item, .showcase__item--wide, .showcase__item--third { padding: var(--space-5); }
}

/* Register page — intro card shouldn't stick when stacked. */
@media (max-width: 900px) {
  .intro-card { position: static; }
  .register__body { padding: var(--space-6) 0 var(--space-7); }
}

/* Wizard actions — stack and full-width on very narrow screens. */
@media (max-width: 480px) {
  .wizard__actions { flex-wrap: wrap; gap: var(--space-3); }
  .wizard__actions .btn { flex: 1 1 100%; }
  /* The empty spacer on step 0 shouldn't take a line. */
  .wizard__actions > span:empty { display: none; }
  .wizard { padding: var(--space-5); }
  .wizard__step { gap: var(--space-5); }
}

/* Expo page stacks cleanly on mobile. */
@media (max-width: 620px) {
  .promo-card__code { font-size: 2rem; }
  .promo-card__col { padding: var(--space-5); }
  .expo__ctas .btn { flex: 1 1 100%; }
}

/* Transformation section — title stays readable on narrow widths. */
@media (max-width: 480px) {
  .transform__title { font-size: clamp(1.75rem, 7vw, 2.5rem); }
}

/* Confirmation page — keep the promo card readable on mobile. */
@media (max-width: 620px) {
  .confirmation__title { font-size: clamp(1.75rem, 7vw, 2.5rem); }
  .confirmation__card, .confirmation__aside { padding: var(--space-5); }
}

/* Footer — nav links wrap cleanly, maintain breathing room. */
@media (max-width: 480px) {
  .site-footer { padding: var(--space-6) 0; }
  .site-footer__links { gap: var(--space-3); }
}

/* Prevent horizontal overflow without breaking `position: sticky`.
   `overflow-x: hidden` on <html> disables sticky on iOS Safari. `clip`
   is equivalent visually but keeps sticky working; applied to body
   only so html remains the scrolling ancestor the sticky header needs. */
body { overflow-x: clip; }
/* Fallback for browsers without `overflow: clip` support (Safari < 16). */
@supports not (overflow: clip) {
  body { overflow-x: hidden; }
}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}