/* Zas! landing — style system from DESIGN.md (Firecrawl blueprint)
   Accent mapped: ember orange → brand gold #d4af37; Suisse → Inter. */

:root {
  --color-ember: #d4af37;
  --color-ember-glow: #f3e6c0;
  --color-gridline: #e5e7eb;
  --color-ink: #262626;
  --color-vellum: #f9f9f9;
  --color-slate: #727272;
  --color-graphite: #616161;
  --color-ash: #949494;
  --color-stone: #c7c7c7;
  --color-canvas: #ffffff;
  --color-navy: #0d1b3e;

  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --text-caption: 10px;
  --text-body: 14px;
  --text-heading-sm: 20px;
  --text-heading: 24px;
  --text-heading-lg: 40px;
  --text-display: 52px;
  --text-display-xl: 60px;

  --page-max: 1200px;
  --section-gap: 96px;
  --radius-pill: 999px;
  --radius-card: 16px;
  --radius-input: 8px;

  --shadow-subtle: rgb(249, 249, 249) 0 0 0 6px;
  --shadow-ember: 0 0 0 6px var(--color-ember-glow);
  --shadow-card: rgba(0, 0, 0, 0.02) 0 40px 48px -20px,
    rgba(0, 0, 0, 0.03) 0 32px 32px -20px,
    rgba(0, 0, 0, 0.03) 0 16px 24px -12px,
    rgba(0, 0, 0, 0.03) 0 0 0 1px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-ink);
  background: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

button {
  font: inherit;
  cursor: pointer;
  background: none;
  border: 0;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

::selection {
  background: var(--color-ember);
  color: var(--color-navy);
}

.zas-wrap {
  width: min(100% - 48px, var(--page-max));
  margin-inline: auto;
}

@media (max-width: 640px) {
  .zas-wrap {
    width: min(100% - 32px, var(--page-max));
  }
}

/* —— Announcement —— */
.zas-announce {
  background: var(--color-ember);
  color: #fff;
  text-align: center;
  font-size: var(--text-body);
  font-weight: 500;
  padding: 10px 16px;
}

.zas-announce a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* —— Nav —— */
.zas-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--color-gridline);
  height: 64px;
}

.zas-nav__inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.zas-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.zas-brand img {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.zas-brand__name {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}

.zas-brand__name span {
  color: var(--color-ember);
}

.zas-nav__links {
  display: none;
  align-items: center;
  gap: 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
}

.zas-nav__links a:hover {
  color: var(--color-slate);
}

.zas-nav__actions {
  display: none;
  align-items: center;
  gap: 8px;
}

.zas-nav__burger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-gridline);
  color: var(--color-ink);
  font-size: 16px;
}

@media (min-width: 768px) {
  .zas-nav__links,
  .zas-nav__actions {
    display: flex;
  }
  .zas-nav__burger {
    display: none;
  }
}

.zas-mobile {
  display: none;
  border-bottom: 1px solid var(--color-gridline);
  background: #fff;
  padding: 12px 16px 20px;
}

.zas-mobile.is-open {
  display: block;
}

.zas-mobile a {
  display: block;
  padding: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
  border-radius: 8px;
}

.zas-mobile a:hover {
  background: var(--color-vellum);
}

.zas-mobile .zas-btn {
  margin-top: 8px;
  width: 100%;
  text-align: center;
}

/* —— Buttons —— */
.zas-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.zas-btn--primary {
  background: var(--color-ember);
  color: #fff;
  box-shadow: var(--shadow-ember);
}

.zas-btn--primary:hover {
  filter: brightness(0.96);
}

.zas-btn--ghost {
  background: transparent;
  color: var(--color-ink);
  padding: 8px 12px;
}

.zas-btn--ghost:hover {
  background: var(--color-vellum);
}

.zas-btn--outline {
  background: #fff;
  color: var(--color-ink);
  border: 1px solid var(--color-gridline);
}

.zas-btn--outline:hover {
  background: var(--color-vellum);
}

.zas-btn--dark {
  background: var(--color-ink);
  color: #fff;
}

.zas-btn--dark:hover {
  background: #3a3a3a;
}

.zas-btn--sm {
  padding: 8px 14px;
  font-size: 13px;
}

/* —— Hero —— */
.zas-hero {
  position: relative;
  padding: 64px 0 72px;
  overflow: hidden;
  border-bottom: 1px solid var(--color-gridline);
}

.zas-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-gridline) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-gridline) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 35%, #000 15%, transparent 78%);
  pointer-events: none;
  opacity: 0.7;
}

.zas-hero__layout {
  position: relative;
  display: grid;
  gap: 40px;
  align-items: center;
}

@media (min-width: 960px) {
  .zas-hero__layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 56px;
  }
}

.zas-hero__copy {
  text-align: center;
}

@media (min-width: 960px) {
  .zas-hero__copy {
    text-align: left;
  }
}

.zas-hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.zas-hero__visual-glow {
  position: absolute;
  width: min(78%, 340px);
  height: min(78%, 340px);
  border-radius: 50%;
  background: var(--color-ember-glow);
  opacity: 0.55;
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}

.zas-hero__frame {
  position: relative;
  z-index: 1;
  width: min(100%, 440px);
  background: #fff;
  border: 1px solid var(--color-gridline);
  border-radius: 20px;
  padding: 14px;
  box-shadow: var(--shadow-card), var(--shadow-subtle);
}

.zas-hero__frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  border: 1px solid var(--color-gridline);
  background: var(--color-vellum);
}

.zas-hero__caption {
  margin: 12px 2px 2px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-ash);
}

.zas-hero__caption strong {
  color: var(--color-ink);
  font-weight: 500;
}

.zas-hero__inner {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.zas-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 2px 8px 2px 2px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-gridline);
  background: #fff;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-ink);
  letter-spacing: 0.01em;
  margin-bottom: 24px;
}

.zas-badge__dot {
  width: 8px;
  height: 8px;
  margin-left: 6px;
  border-radius: 50%;
  background: var(--color-ember);
}

.zas-badge__tag {
  background: var(--color-ember);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

.zas-hero h1 {
  margin: 0 0 20px;
  font-size: clamp(34px, 6vw, 52px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

.zas-hero h1 .accent {
  color: var(--color-ember);
}

.zas-hero__lead {
  margin: 0 0 28px;
  max-width: 540px;
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-slate);
}

@media (min-width: 960px) {
  .zas-hero__lead {
    margin-left: 0;
    margin-right: 0;
  }
}

@media (max-width: 959px) {
  .zas-hero__lead {
    margin-left: auto;
    margin-right: auto;
  }
}

.zas-hero__bar {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: stretch;
  background: #fff;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-pill);
  padding: 8px;
  box-shadow: var(--shadow-subtle);
  max-width: 640px;
  margin: 0 auto 24px;
}

@media (min-width: 960px) {
  .zas-hero__bar {
    margin-left: 0;
    margin-right: 0;
  }
}

@media (min-width: 640px) {
  .zas-hero__bar {
    flex-direction: row;
    align-items: center;
    padding: 8px 8px 8px 20px;
  }
}

.zas-hero__bar p {
  flex: 1;
  margin: 0;
  font-size: 14px;
  color: var(--color-stone);
  text-align: left;
  padding: 8px 4px;
}

.zas-hero__stores {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

@media (min-width: 960px) {
  .zas-hero__stores {
    justify-content: flex-start;
  }
}

.zas-store {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-gridline);
  background: #fff;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-ink);
}

.zas-store:hover {
  background: var(--color-vellum);
}

.zas-store small {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  color: var(--color-ash);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* —— Section chrome —— */
.zas-section {
  padding: var(--section-gap) 0;
}

.zas-section--vellum {
  background: var(--color-vellum);
  border-block: 1px solid var(--color-gridline);
}

.zas-section__label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-slate);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.zas-section__label::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-ember);
  flex-shrink: 0;
}

.zas-section__label--bar {
  border-left: 2px solid var(--color-ember);
  padding-left: 12px;
}

.zas-section__label--bar::before {
  display: none;
}

.zas-section h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 5vw, var(--text-heading-lg));
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.005em;
  color: var(--color-ink);
}

.zas-section h2 .accent {
  color: var(--color-ember);
}

.zas-section__lead {
  margin: 0 0 40px;
  max-width: 540px;
  font-size: 14px;
  color: var(--color-slate);
  line-height: 1.5;
}

.zas-section__head {
  text-align: center;
  max-width: 560px;
  margin: 0 auto 48px;
}

.zas-section__head .zas-section__lead {
  margin: 0 auto;
}

/* —— Feature cards —— */
.zas-cards {
  display: grid;
  gap: 24px;
}

@media (min-width: 640px) {
  .zas-cards--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .zas-cards--3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .zas-cards--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.zas-card {
  background: var(--color-vellum);
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.zas-card--elevated {
  background: #fff;
  box-shadow: var(--shadow-card);
  text-align: left;
  align-items: flex-start;
}

.zas-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-gridline);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ember);
  margin-bottom: 16px;
  flex-shrink: 0;
}

.zas-card__icon svg,
.zas-aud-card__icon svg,
.zas-val-panel__icon svg {
  width: 22px;
  height: 22px;
  display: block;
}

.zas-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-ink);
}

.zas-card p {
  margin: 0;
  font-size: 14px;
  color: var(--color-slate);
  line-height: 1.5;
  flex: 1;
}

.zas-card .zas-btn {
  margin-top: 20px;
  width: 100%;
}

.zas-card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-ember);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* —— Steps —— */
.zas-steps {
  display: grid;
  gap: 16px;
}

@media (min-width: 768px) {
  .zas-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

.zas-step {
  background: #fff;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  padding: 24px;
}

.zas-step__n {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-ember);
  margin-bottom: 12px;
}

.zas-step h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-ink);
}

.zas-step p {
  margin: 0;
  font-size: 14px;
  color: var(--color-slate);
}

.zas-checks {
  margin: 24px 0 0;
  display: grid;
  gap: 10px;
}

.zas-checks li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--color-graphite);
}

.zas-checks li::before {
  content: "✓";
  color: var(--color-ember);
  font-weight: 500;
  flex-shrink: 0;
}

/* —— FAQ —— */
.zas-faq {
  display: grid;
  gap: 12px;
  max-width: 720px;
  margin: 0 auto;
}

.zas-faq__item {
  background: #fff;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.zas-faq__item button {
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.zas-faq__item button:hover {
  background: var(--color-vellum);
}

.zas-faq__item button span:last-child {
  color: var(--color-ash);
  font-family: var(--font-mono);
  font-size: 14px;
}

.zas-faq__body {
  display: none;
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--color-slate);
  line-height: 1.5;
  border-top: 1px solid var(--color-gridline);
  padding-top: 14px;
}

.zas-faq__body.is-open {
  display: block;
}

.zas-faq__body a {
  color: var(--color-ink);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* —— Footer —— */
.zas-footer {
  border-top: 1px solid var(--color-gridline);
  background: var(--color-vellum);
  padding: 64px 0 32px;
}

.zas-footer__grid {
  display: grid;
  gap: 32px;
}

@media (min-width: 768px) {
  .zas-footer__grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}

.zas-footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.zas-footer__brand img {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.zas-footer__brand span {
  font-size: 15px;
  font-weight: 500;
}

.zas-footer__brand span em {
  font-style: normal;
  color: var(--color-ember);
}

.zas-footer p {
  margin: 0;
  font-size: 13px;
  color: var(--color-slate);
  line-height: 1.5;
  max-width: 280px;
}

.zas-footer h4 {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ash);
}

.zas-footer ul {
  display: grid;
  gap: 10px;
}

.zas-footer li a {
  font-size: 13px;
  color: var(--color-graphite);
}

.zas-footer li a:hover {
  color: var(--color-ink);
}

.zas-footer__copy {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-gridline);
  text-align: center;
  font-size: 12px;
  color: var(--color-ash);
  font-family: var(--font-mono);
}

/* —— About page extras —— */
.zas-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 48px;
  max-width: 900px;
  margin-inline: auto;
}

@media (min-width: 768px) {
  .zas-stat-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
}

.zas-stat {
  background: #fff;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  padding: 20px 16px;
  text-align: center;
}

.zas-stat__value {
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin-bottom: 4px;
}

.zas-stat__value.is-accent {
  color: var(--color-ember);
}

.zas-stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-slate);
}

.zas-stat__hint {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--color-ash);
  line-height: 1.4;
}

.zas-split {
  display: grid;
  gap: 24px;
}

@media (min-width: 900px) {
  .zas-split--values {
    grid-template-columns: 340px 1fr;
    gap: 32px;
    align-items: start;
  }
}

.zas-val-list {
  display: grid;
  gap: 8px;
}

.zas-val-btn {
  width: 100%;
  text-align: left;
  padding: 16px 18px;
  border-radius: var(--radius-card);
  border: 1px solid var(--color-gridline);
  background: var(--color-vellum);
  color: var(--color-ink);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.zas-val-btn:hover {
  background: #fff;
}

.zas-val-btn.is-active {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: #fff;
}

.zas-val-btn__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 15px;
  font-weight: 500;
}

.zas-val-btn p {
  margin: 6px 0 0;
  font-size: 12px;
  color: var(--color-slate);
}

.zas-val-btn.is-active p {
  color: rgba(255, 255, 255, 0.65);
}

.zas-val-panel {
  background: #fff;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
}

.zas-val-panel__icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-gridline);
  background: var(--color-vellum);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--color-ember);
  flex-shrink: 0;
}

.zas-val-btn__ico {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--color-gridline);
  background: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ember);
  flex-shrink: 0;
}

.zas-val-btn.is-active .zas-val-btn__ico {
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-ember);
}

.zas-val-btn__ico svg {
  width: 16px;
  height: 16px;
}

.zas-val-panel h4 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 500;
  color: var(--color-ink);
  line-height: 1.25;
}

.zas-val-panel > p,
.zas-val-panel .zas-val-desc {
  margin: 0 0 20px;
  font-size: 14px;
  color: var(--color-slate);
  line-height: 1.5;
}

.zas-val-checks {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.zas-val-checks li {
  display: flex;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-ink);
}

.zas-val-checks li::before {
  content: "✓";
  color: var(--color-ember);
  flex-shrink: 0;
}

.zas-val-panel__foot {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--color-gridline);
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-ash);
}

.zas-aud-tabs {
  display: inline-flex;
  width: 100%;
  max-width: 520px;
  margin: 0 auto 32px;
  padding: 4px;
  background: var(--color-vellum);
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-pill);
  gap: 2px;
}

.zas-aud-tabs {
  display: flex;
}

.zas-aud-tab {
  flex: 1;
  padding: 10px 8px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-slate);
  font-family: var(--font-mono);
}

.zas-aud-tab.is-active {
  background: var(--color-ink);
  color: #fff;
}

.zas-aud-panel {
  background: #fff;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
}

.zas-aud-panel h4 {
  margin: 0 0 8px;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 500;
  color: var(--color-ink);
  letter-spacing: -0.02em;
}

.zas-aud-panel > .zas-aud-lead {
  margin: 0 0 28px;
  max-width: 560px;
  font-size: 14px;
  color: var(--color-slate);
}

.zas-aud-grid {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

@media (min-width: 640px) {
  .zas-aud-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .zas-aud-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.zas-aud-card {
  background: var(--color-vellum);
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  padding: 20px 16px;
}

.zas-aud-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-gridline);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ember);
  margin-bottom: 12px;
  flex-shrink: 0;
}

.zas-aud-card h5 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-ink);
}

.zas-aud-card p {
  margin: 0;
  font-size: 13px;
  color: var(--color-slate);
  line-height: 1.4;
}

.zas-aud-foot {
  padding-top: 20px;
  border-top: 1px solid var(--color-gridline);
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
}

@media (min-width: 640px) {
  .zas-aud-foot {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.zas-aud-foot span {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
}

.zas-charts {
  display: grid;
  gap: 24px;
}

@media (min-width: 900px) {
  .zas-charts {
    grid-template-columns: 1fr 1fr;
  }
}

.zas-chart-card {
  background: var(--color-vellum);
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  padding: 24px;
}

.zas-chart-card h4 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-ink);
}

.zas-chart-card .zas-chart-sub {
  margin: 0 0 20px;
  font-size: 12px;
  color: var(--color-slate);
  font-family: var(--font-mono);
}

.zas-chart-card .chart-box {
  position: relative;
  width: 100%;
  height: 300px;
  max-width: 580px;
  margin: 0 auto;
}

.zas-chart-toggle {
  display: flex;
  gap: 4px;
}

.zas-chart-toggle button {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-gridline);
  background: #fff;
  color: var(--color-ink);
}

.zas-chart-toggle button.is-active {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: #fff;
}

.zas-chart-note {
  margin: 16px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--color-gridline);
  font-size: 12px;
  color: var(--color-slate);
  text-align: center;
}

.zas-sim {
  background: #fff;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: var(--shadow-card);
}

.zas-sim__modes {
  display: flex;
  justify-content: center;
  margin-bottom: 28px;
}

.zas-sim__modes-inner {
  display: inline-flex;
  padding: 4px;
  background: var(--color-vellum);
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-pill);
  gap: 2px;
}

.zas-sim__mode {
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-slate);
}

.zas-sim__mode.is-active {
  background: var(--color-ember);
  color: #fff;
  box-shadow: var(--shadow-ember);
}

.zas-sim__inputs {
  display: grid;
  gap: 24px;
}

@media (min-width: 640px) {
  .zas-sim__inputs {
    grid-template-columns: 1fr 1fr;
  }
}

.zas-sim__field span {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ash);
  margin-bottom: 10px;
}

.zas-sim__field input[type="range"] {
  width: 100%;
  accent-color: var(--color-ember);
  cursor: pointer;
}

.zas-sim__range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--color-ash);
  margin-top: 6px;
}

.zas-sim__range-labels strong {
  color: var(--color-ink);
  font-weight: 500;
}

.zas-sim__result {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--color-gridline);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (min-width: 640px) {
  .zas-sim__result {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.zas-sim__result-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ash);
}

.zas-sim__result-value {
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-ember);
  margin-top: 4px;
}

.zas-sim__result-sub {
  margin-top: 4px;
  font-size: 12px;
  color: var(--color-slate);
}

.zas-section__head-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

/* ——— Utilities used by JS / migrated pages ——— */
.hidden {
  display: none !important;
}

.zas-page-hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--color-gridline);
  background: linear-gradient(180deg, var(--color-vellum) 0%, #fff 100%);
}

.zas-page-hero__inner {
  max-width: 720px;
}

.zas-page-hero--center .zas-page-hero__inner {
  margin: 0 auto;
  text-align: center;
}

.zas-page-hero h1 {
  margin: 12px 0 12px;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--color-ink);
}

.zas-page-hero p {
  margin: 0;
  color: var(--color-slate);
  font-size: 16px;
  line-height: 1.55;
}

.zas-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.zas-meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-input);
  border: 1px solid var(--color-gridline);
  background: #fff;
  font-size: 12px;
  color: var(--color-slate);
}

.zas-meta-chip strong {
  color: var(--color-ink);
  font-weight: 500;
}

.zas-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 20px;
}

.zas-filter-btn {
  padding: 8px 14px;
  border-radius: var(--radius-input);
  border: 1px solid var(--color-gridline);
  background: #fff;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-ink);
}

.zas-filter-btn.is-active {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: #fff;
}

/* Legal / doc layout */
.zas-doc {
  padding: 40px 0 80px;
}

.zas-doc__layout {
  display: grid;
  gap: 28px;
  align-items: start;
}

@media (min-width: 960px) {
  .zas-doc__layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 36px;
  }
}

.zas-toc {
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  background: #fff;
  padding: 20px;
  box-shadow: var(--shadow-card);
}

@media (min-width: 960px) {
  .zas-toc {
    position: sticky;
    top: 88px;
  }
}

.zas-toc h2 {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ash);
}

.zas-toc nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 65vh;
  overflow-y: auto;
}

.zas-toc a {
  display: block;
  padding: 8px 10px;
  border-left: 2px solid transparent;
  border-radius: 0 8px 8px 0;
  font-size: 12px;
  color: var(--color-slate);
}

.zas-toc a:hover {
  background: var(--color-vellum);
  color: var(--color-ink);
}

.zas-toc a.is-active,
.zas-toc a.toc-active {
  border-left-color: var(--color-ember);
  background: var(--color-ember-glow);
  color: var(--color-ink);
  font-weight: 500;
}

.zas-toc-cta {
  margin-top: 16px;
  padding: 16px;
  border-radius: var(--radius-card);
  border: 1px solid rgba(212, 175, 55, 0.35);
  background: var(--color-ember-glow);
}

.zas-toc-cta p {
  margin: 6px 0 12px;
  font-size: 12px;
  color: var(--color-slate);
  line-height: 1.45;
}

.zas-toc-cta .zas-btn {
  width: 100%;
  justify-content: center;
  margin-bottom: 8px;
}

.zas-prose {
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  background: #fff;
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
}

@media (min-width: 640px) {
  .zas-prose {
    padding: 36px 40px;
  }
}

.zas-prose-section {
  padding-bottom: 28px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--color-gridline);
  scroll-margin-top: 96px;
}

.zas-prose-section:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.zas-prose-section__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.zas-prose-section__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ember);
}

.zas-prose-section h2 {
  margin: 0 0 12px;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.zas-prose-section h3 {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
}

.zas-prose-section p,
.zas-prose-section li {
  color: var(--color-slate);
  font-size: 14px;
  line-height: 1.6;
}

.zas-prose-section p {
  margin: 0 0 12px;
}

.zas-prose-section ul {
  margin: 0 0 12px;
  padding-left: 18px;
  list-style: disc;
}

.zas-prose-section ol,
.zas-card ol {
  margin: 0 0 12px;
  padding-left: 18px;
  list-style: decimal;
}

.zas-card ol li {
  margin-bottom: 6px;
  color: var(--color-slate);
  font-size: 14px;
  line-height: 1.55;
}

.zas-prose-section ol li,
.zas-prose-section ul li {
  margin-bottom: 6px;
}

.zas-page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.zas-page-actions .zas-btn {
  flex: 1 1 140px;
  justify-content: center;
}

.zas-toc summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ash);
  margin-bottom: 12px;
}

.zas-toc summary::-webkit-details-marker {
  display: none;
}

@media print {
  .no-print,
  .zas-nav,
  .zas-mobile,
  .zas-announce,
  .zas-footer,
  .zas-modal,
  .zas-toast {
    display: none !important;
  }
}

.zas-prose-section a {
  color: var(--color-ember);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.zas-prose-grid {
  display: grid;
  gap: 12px;
  margin: 12px 0;
}

@media (min-width: 640px) {
  .zas-prose-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.zas-prose-card {
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--color-gridline);
  background: var(--color-vellum);
}

.zas-prose-card p {
  margin: 0;
  font-size: 12px;
}

.zas-callout {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(212, 175, 55, 0.35);
  background: var(--color-ember-glow);
  margin: 12px 0;
}

.zas-callout--ink {
  background: var(--color-ink);
  border-color: rgba(212, 175, 55, 0.35);
  color: #fff;
}

.zas-callout--ink p,
.zas-callout--ink a {
  color: rgba(255, 255, 255, 0.85);
}

.zas-callout--ink .accent,
.zas-callout--ink strong {
  color: var(--color-ember);
}

.zas-search {
  position: relative;
  margin-top: 20px;
  max-width: 480px;
}

.zas-search input {
  width: 100%;
  padding: 12px 40px 12px 14px;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-input);
  background: #fff;
  font: inherit;
  color: var(--color-ink);
}

.zas-search input:focus {
  outline: none;
  box-shadow: var(--shadow-ember);
  border-color: var(--color-ember);
}

.zas-search__clear {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-ash);
  font-size: 14px;
  padding: 4px;
}

/* Forms */
.zas-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.zas-field label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ash);
}

.zas-field input,
.zas-field select,
.zas-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-input);
  background: var(--color-vellum);
  font: inherit;
  color: var(--color-ink);
}

.zas-field input:focus,
.zas-field select:focus,
.zas-field textarea:focus {
  outline: none;
  border-color: var(--color-ember);
  box-shadow: var(--shadow-ember);
  background: #fff;
}

.zas-field-row {
  display: grid;
  gap: 14px;
}

@media (min-width: 640px) {
  .zas-field-row {
    grid-template-columns: 1fr 1fr;
  }
}

.zas-form-error {
  padding: 10px 12px;
  border-radius: var(--radius-input);
  border: 1px solid #fecaca;
  background: #fef2f2;
  color: #b91c1c;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 12px;
}

/* Modal */
.zas-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(13, 27, 62, 0.72);
  backdrop-filter: blur(4px);
  overflow-y: auto;
}

.zas-modal__panel {
  width: 100%;
  max-width: 480px;
  margin: 24px auto;
  background: #fff;
  border-radius: var(--radius-card);
  border: 1px solid var(--color-gridline);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.zas-modal__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 22px;
  background: var(--color-ink);
  color: #fff;
}

.zas-modal__head h3 {
  margin: 4px 0 0;
  font-size: 18px;
  font-weight: 500;
}

.zas-modal__body {
  padding: 20px 22px 24px;
}

.zas-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  max-width: 320px;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--color-ink);
  color: #fff;
  border: 1px solid rgba(212, 175, 55, 0.4);
  box-shadow: var(--shadow-card);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
}

.zas-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.zas-toast p {
  margin: 0;
}

.zas-toast__title {
  font-size: 12px;
  font-weight: 500;
}

.zas-toast__msg {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 2px;
}

/* Support chat */
.zas-chat {
  display: flex;
  flex-direction: column;
  height: 540px;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  background: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.zas-chat__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  background: var(--color-ink);
  color: #fff;
}

.zas-chat__messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  background: var(--color-vellum);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.zas-chat__composer {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--color-gridline);
  background: #fff;
}

.zas-chat__composer input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-input);
  background: var(--color-vellum);
  font: inherit;
}

.msg {
  display: flex;
  flex-direction: column;
  max-width: 85%;
}

.msg-out {
  margin-left: auto;
  align-items: flex-end;
}

.msg-in {
  margin-right: auto;
  align-items: flex-start;
}

.msg-meta {
  font-size: 10px;
  color: var(--color-ash);
  font-weight: 500;
  margin-bottom: 4px;
  padding: 0 4px;
}

.msg-bubble {
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.5;
}

.msg-out .msg-bubble {
  background: var(--color-ink);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.msg-in .msg-bubble {
  background: #fff;
  color: var(--color-ink);
  border: 1px solid var(--color-gridline);
  border-bottom-left-radius: 4px;
}

.msg-empty {
  margin: auto;
  text-align: center;
  color: var(--color-ash);
  font-size: 12px;
  padding: 32px 16px;
}

.zas-split-2 {
  display: grid;
  gap: 28px;
  align-items: start;
}

@media (min-width: 960px) {
  .zas-split-2 {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.zas-error-hero {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 64px 0;
}

.zas-error-hero__code {
  font-size: clamp(72px, 14vw, 120px);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 1;
  color: var(--color-ink);
  margin: 0 0 16px;
}

.zas-error-hero__code span {
  color: var(--color-ember);
}

.zas-list-links {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

@media (min-width: 640px) {
  .zas-list-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

.zas-list-links a {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--color-gridline);
  border-radius: var(--radius-card);
  background: #fff;
  text-align: left;
}

.zas-list-links a strong {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-ink);
}

.zas-list-links a span {
  font-size: 12px;
  color: var(--color-slate);
}

.zas-article-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.zas-article-card .zas-card__meta {
  margin-bottom: 8px;
}

.zas-mobile-stack {
  max-width: 420px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.zas-mobile-stack h1 {
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 0 0 8px;
}

.zas-mobile-stack > p {
  color: var(--color-slate);
  margin: 0 0 20px;
}

.zas-mobile-stack .zas-card {
  margin-bottom: 10px;
}

.zas-mobile-stack .zas-card--dark {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: #fff;
}

.zas-mobile-stack .zas-card--dark h3,
.zas-mobile-stack .zas-card--dark p {
  color: #fff;
}

.zas-mobile-stack .zas-card--dark p {
  color: rgba(255, 255, 255, 0.7);
}

body.zas-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.zas-body > main {
  flex: 1;
}