* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; }
img { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }

.skip-link {
  position: fixed;
  z-index: 200;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: #fff;
  background: var(--mi-focus);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.page-shell {
  min-height: 100vh;
  color: var(--mi-text);
  background: var(--mi-bg);
  font-family: var(--mi-font-body);
  font-size: 16px;
  line-height: 1.6;
}

.container {
  width: min(100% - (2 * var(--mi-gutter)), var(--mi-content-max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 60;
  top: 0;
  border-bottom: 1px solid rgb(59 68 87 / 34%);
  background: rgb(8 10 15 / 86%);
  backdrop-filter: blur(18px);
}
.site-header__inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand {
  flex: none;
  color: var(--mi-text);
  font-family: var(--mi-font-display);
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.035em;
  text-decoration: none;
  text-transform: uppercase;
}
.brand span { color: var(--mi-fire-500); }
.desktop-nav { display: flex; align-items: center; gap: 28px; }
.desktop-nav a {
  color: var(--mi-text-muted);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--mi-duration-fast) var(--mi-ease);
}
.desktop-nav a:hover, .desktop-nav a:focus-visible { color: var(--mi-flame-400); }
.menu-toggle {
  width: 46px;
  height: 46px;
  display: none;
  place-items: center;
  border: 1px solid var(--mi-border);
  border-radius: var(--mi-radius-sm);
  color: var(--mi-text);
  background: transparent;
  cursor: pointer;
}
.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after { content: ""; width: 20px; height: 2px; display: block; background: currentColor; }
.menu-toggle span { margin-block: 4px; }
.mobile-menu {
  padding: 12px var(--mi-gutter) 22px;
  border-top: 1px solid var(--mi-border);
  background: var(--mi-bg);
}
.mobile-menu a { min-height: 44px; display: flex; align-items: center; color: var(--mi-text-muted); font-weight: 600; text-decoration: none; }

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.78rem 1.3rem;
  border: 1px solid transparent;
  border-radius: var(--mi-radius-sm);
  color: #fff;
  background: var(--mi-primary);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--mi-duration-fast) var(--mi-ease), transform var(--mi-duration-fast) var(--mi-ease), box-shadow var(--mi-duration-fast) var(--mi-ease);
}
.button:hover { background: var(--mi-primary-hover); box-shadow: var(--mi-glow-ember); transform: translateY(-1px); }
.button:active { transform: translateY(0); }
.button--secondary { color: var(--mi-text); background: transparent; border-color: var(--mi-steel-500); box-shadow: none; }
.button--secondary:hover { color: var(--mi-heat-300); background: var(--mi-surface); border-color: var(--mi-flame-400); }
.button--small { min-height: 38px; padding: 0.6rem 0.95rem; font-size: 0.78rem; }
.button:focus-visible, .tab-button:focus-visible, .faq-button:focus-visible, .menu-toggle:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid var(--mi-focus);
  outline-offset: 3px;
}

.kicker { color: var(--mi-flame-400); font: 600 0.75rem/1 var(--mi-font-mono); letter-spacing: 0.16em; text-transform: uppercase; }
.display-title {
  margin: 0;
  font-family: var(--mi-font-display);
  font-size: clamp(3.7rem, 8vw, 7.6rem);
  font-weight: 800;
  line-height: 0.84;
  letter-spacing: -0.035em;
  text-transform: uppercase;
  text-wrap: balance;
}
.section { padding-block: clamp(72px, 9vw, 128px); border-top: 1px solid var(--mi-border); }
.section--raised { background: var(--mi-bg-raised); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 48px; }
.section-head h2 { margin: 0; font-family: var(--mi-font-display); font-size: clamp(2.6rem, 5vw, 4.6rem); font-weight: 800; line-height: 0.9; text-transform: uppercase; text-wrap: balance; }
.section-head p { max-width: 34rem; margin: 0; color: var(--mi-text-muted); }

.tab-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.tab-button {
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--mi-border);
  border-radius: var(--mi-radius-sm);
  color: var(--mi-text-muted);
  background: var(--mi-bg);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}
.tab-button[aria-selected="true"] { color: #fff; background: var(--mi-fire-500); border-color: var(--mi-fire-500); }

.placeholder-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.placeholder-card {
  min-height: 230px;
  display: flex;
  flex-direction: column;
  justify-content: end;
  padding: 20px;
  border: 1px solid var(--mi-border);
  border-radius: var(--mi-radius-md);
  background: var(--mi-bg);
  transition: border-color var(--mi-duration-fast) var(--mi-ease), transform var(--mi-duration-fast) var(--mi-ease), background var(--mi-duration-fast) var(--mi-ease);
}
.placeholder-card:hover { border-color: var(--mi-fire-500); transform: translateY(-3px); background: rgb(90 75 209 / 8%); }
.placeholder-card small { color: var(--mi-steel-400); font: 500 0.69rem/1.35 var(--mi-font-mono); letter-spacing: 0.06em; text-transform: uppercase; }
.placeholder-card strong { margin-top: 10px; font-family: var(--mi-font-display); font-size: 1.65rem; line-height: 0.95; text-transform: uppercase; }
.placeholder-card .asset-note { margin-top: auto; margin-bottom: 54px; color: var(--mi-steel-500); font: 500 0.68rem/1.3 var(--mi-font-mono); text-align: center; }

.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.plan {
  position: relative;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  padding: 30px;
  border: 1px solid var(--mi-border);
  border-radius: var(--mi-radius-md);
  background: var(--mi-bg);
}
.plan--featured { border-color: var(--mi-fire-500); box-shadow: var(--mi-glow-ember); }
.plan h3 { margin: 0; font-family: var(--mi-font-display); font-size: 2rem; text-transform: uppercase; }
.plan-price { margin: 28px 0 8px; font-family: var(--mi-font-display); font-size: 2.7rem; font-weight: 800; line-height: 1; text-transform: uppercase; }
.plan-cycle { color: var(--mi-steel-400); font-size: 0.8rem; }
.plan ul { margin: 30px 0; padding: 0; list-style: none; color: var(--mi-text-muted); }
.plan li { padding: 10px 0; border-top: 1px solid var(--mi-border); }
.plan .button { margin-top: auto; }
.billing-toggle { display: inline-flex; gap: 4px; padding: 4px; border: 1px solid var(--mi-border); border-radius: var(--mi-radius-md); background: var(--mi-bg); }
.billing-toggle button { min-height: 38px; padding: 0 14px; border: 0; border-radius: var(--mi-radius-sm); color: var(--mi-text-muted); background: transparent; font-size: 0.8rem; font-weight: 700; cursor: pointer; }
.billing-toggle button[aria-pressed="true"] { color: #fff; background: var(--mi-fire-500); }

.faq-list { border-top: 1px solid var(--mi-border); }
.faq-item { border-bottom: 1px solid var(--mi-border); }
.faq-button {
  width: 100%;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
  border: 0;
  color: var(--mi-text);
  background: transparent;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}
.faq-button::after { content: "+"; color: var(--mi-fire-500); font: 600 1.5rem/1 var(--mi-font-mono); }
.faq-button[aria-expanded="true"]::after { content: "−"; }
.faq-panel { max-width: 52rem; padding: 0 48px 22px 0; color: var(--mi-text-muted); }

.site-footer { padding-block: 48px; border-top: 1px solid var(--mi-border); background: #080a0f; }
.footer-grid { display: grid; grid-template-columns: 1.2fr repeat(3, 0.7fr); gap: 32px; }
.footer-grid h3 { margin: 0 0 14px; color: var(--mi-text); font-family: var(--mi-font-display); font-size: 1.25rem; text-transform: uppercase; }
.footer-grid p, .footer-grid a { color: var(--mi-steel-400); font-size: 0.86rem; text-decoration: none; }
.footer-grid a { display: block; min-height: 34px; }
.footer-note { max-width: 28rem; }

.prototype-switcher {
  position: fixed;
  z-index: 100;
  right: 18px;
  bottom: 18px;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px;
  border: 1px solid var(--mi-steel-500);
  border-radius: 6px;
  background: rgb(8 10 15 / 92%);
  box-shadow: 0 16px 44px rgb(0 0 0 / 54%);
  backdrop-filter: blur(14px);
}
.prototype-switcher span { padding: 0 8px; color: var(--mi-steel-400); font: 600 10px/1 var(--mi-font-mono); text-transform: uppercase; }
.prototype-switcher a { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid transparent; border-radius: 3px; color: var(--mi-text-muted); font: 700 12px/1 var(--mi-font-mono); text-decoration: none; }
.prototype-switcher a:hover, .prototype-switcher a[aria-current="page"] { color: #fff; background: var(--mi-fire-500); }

dialog {
  width: min(92vw, 620px);
  padding: 0;
  border: 1px solid var(--mi-steel-500);
  border-radius: var(--mi-radius-md);
  color: var(--mi-text);
  background: var(--mi-bg-raised);
  box-shadow: 0 30px 100px rgb(0 0 0 / 72%);
}
dialog::backdrop { background: rgb(0 0 0 / 78%); backdrop-filter: blur(8px); }
.dialog-body { padding: clamp(28px, 6vw, 52px); }
.dialog-body h2 { margin: 0; font-family: var(--mi-font-display); font-size: 3rem; line-height: 0.9; text-transform: uppercase; }
.dialog-body p { color: var(--mi-text-muted); }
.dialog-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }

.toast {
  position: fixed;
  z-index: 120;
  left: 50%;
  bottom: 22px;
  min-width: 240px;
  padding: 13px 16px;
  border: 1px solid var(--mi-fire-500);
  border-radius: var(--mi-radius-sm);
  color: var(--mi-text);
  background: var(--mi-bg-raised);
  box-shadow: var(--mi-glow-ember);
  font-size: 0.85rem;
  text-align: center;
  transform: translate(-50%, 160%);
  transition: transform 220ms var(--mi-ease);
}
.toast.is-visible { transform: translate(-50%, 0); }

@media (max-width: 900px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: grid; }
  .section-head { align-items: start; flex-direction: column; }
  .placeholder-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plans { grid-template-columns: 1fr; }
  .plan { min-height: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 580px) {
  .placeholder-grid { grid-template-columns: 1fr; }
  .display-title { font-size: clamp(3.4rem, 18vw, 5.4rem); }
  .section { padding-block: 64px; }
  .section-head { margin-bottom: 32px; }
  .footer-grid { grid-template-columns: 1fr; }
  .prototype-switcher span { display: none; }
}

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