:root {
  --bg: #FAFAF8;
  --surface: #FFFFFF;
  --ink: #1B1A23;
  --ink-2: #4A4956;
  --ink-3: #6E6D79;
  --line: rgba(27, 26, 35, 0.09);
  --line-strong: rgba(27, 26, 35, 0.16);

  --primary: #4F46E5;
  --primary-hover: #4338CA;
  --primary-active: #3730A3;
  --primary-soft: rgba(79, 70, 229, 0.08);
  --primary-line: rgba(79, 70, 229, 0.22);

  --success: #0D9488;
  --success-ink: #0F766E;
  --success-soft: rgba(13, 148, 136, 0.1);

  --danger: #DC2626;
  --danger-ink: #B91C1C;
  --danger-soft: rgba(220, 38, 38, 0.08);

  --radius-sm: 8px;
  --radius: 10px;
  --radius-lg: 16px;

  --shadow-1: 0 1px 2px rgba(27, 26, 35, 0.04);
  --shadow-2: 0 1px 2px rgba(27, 26, 35, 0.04), 0 6px 16px -8px rgba(27, 26, 35, 0.08);
  --shadow-3: 0 1px 2px rgba(27, 26, 35, 0.04), 0 16px 40px -20px rgba(49, 46, 129, 0.18);

  --focus-ring: 0 0 0 2px var(--bg), 0 0 0 4px var(--primary);

  --anim-duration: 200ms;
  --anim-duration-fast: 150ms;
  --anim-duration-slow: 250ms;
  --anim-easing: cubic-bezier(0.2, 0.8, 0.2, 1);
  --anim-easing-spring: cubic-bezier(0.25, 1.3, 0.5, 1);
  --anim-stagger: 40ms;

  --header-h: 64px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", sans-serif;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --anim-duration: 0.01ms;
    --anim-duration-fast: 0.01ms;
    --anim-duration-slow: 0.01ms;
    --anim-stagger: 0ms;
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}

h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; color: inherit; }
a, button, input { touch-action: manipulation; }
h1, h2, h3 { text-wrap: balance; }
p, li { text-wrap: pretty; }

svg.lucide { width: 1em; height: 1em; flex: none; stroke-width: 2; }

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding-left: max(24px, env(safe-area-inset-left));
  padding-right: max(24px, env(safe-area-inset-right));
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-sm);
}
.skip-link:focus-visible { top: 12px; outline: none; box-shadow: var(--focus-ring); }

/* ---------- Buttons: default / hover / focus-visible / active / disabled / loading ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition:
    background-color var(--anim-duration) var(--anim-easing),
    border-color var(--anim-duration) var(--anim-easing),
    color var(--anim-duration) var(--anim-easing),
    box-shadow var(--anim-duration) var(--anim-easing),
    transform var(--anim-duration-fast) var(--anim-easing),
    opacity var(--anim-duration) var(--anim-easing);
}
.btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.btn--sm { min-height: 44px; padding: 0 16px; font-size: 14px; }
.btn--lg { min-height: 48px; padding: 0 24px; font-size: 16px; }
.btn--block { width: 100%; }

.btn--primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-1), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}
.btn--primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px -6px rgba(79, 70, 229, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}
.btn--primary:focus-visible { box-shadow: var(--focus-ring); }
.btn--primary:active {
  background: var(--primary-active);
  transform: translateY(0) scale(0.98);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2);
}

.btn--secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-1);
}
.btn--secondary:hover {
  border-color: var(--primary-line);
  color: var(--primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
}
.btn--secondary:active {
  background: var(--primary-soft);
  border-color: var(--primary);
  transform: translateY(0) scale(0.98);
  box-shadow: none;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn--primary:disabled,
.btn--primary[aria-disabled="true"] { background: #A5A1EE; color: rgba(255, 255, 255, 0.9); }
.btn--secondary:disabled,
.btn--secondary[aria-disabled="true"] { background: var(--bg); color: var(--ink-3); border-color: var(--line); }

.btn[aria-busy="true"] { cursor: progress; pointer-events: none; transform: none; }
.btn--primary[aria-busy="true"] { background: var(--primary-hover); box-shadow: none; }

.btn__spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}
.btn[aria-busy="true"] .btn__spinner { display: inline-block; }

@keyframes spin { to { transform: rotate(360deg); } }

/* Submit button: loading → success / error */
.submit svg.lucide { display: none; width: 18px; height: 18px; }
.submit[data-state="success"],
.submit[data-state="success"]:disabled {
  background: var(--success);
  color: #fff;
  cursor: default;
  animation: pop var(--anim-duration-slow) var(--anim-easing-spring);
}
.submit[data-state="success"] .submit__check {
  display: inline-block;
  animation: check-in var(--anim-duration-slow) var(--anim-easing-spring);
}
.submit[data-state="error"] {
  background: var(--danger);
  color: #fff;
  animation: shake 400ms var(--anim-easing);
}
.submit[data-state="error"] .submit__cross { display: inline-block; }

@keyframes pop {
  0% { transform: scale(0.96); }
  60% { transform: scale(1.03); }
  100% { transform: scale(1); }
}
@keyframes check-in {
  0% { transform: scale(0.4); opacity: 0; }
  70% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); }
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-5px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

/* ---------- Header & nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 248, 0.82);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--anim-duration) var(--anim-easing);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  border-radius: var(--radius-sm);
}
.brand:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.brand__mark {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}
.brand__mark svg.lucide { transform: rotate(-45deg); }

.site-nav { display: flex; align-items: center; gap: 20px; }

.nav-list {
  position: relative;
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-link {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-2);
  transition: color var(--anim-duration) var(--anim-easing);
}
.nav-link:hover { color: var(--ink); }
.nav-link[aria-current="true"] { color: var(--primary); }
.nav-link:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.nav-indicator {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 0;
  width: 0;
  height: 0;
  border-radius: var(--radius-sm);
  background: var(--primary-soft);
  border: 1px solid rgba(79, 70, 229, 0.1);
  pointer-events: none;
  opacity: 0;
  will-change: transform, width, height;
}
.nav-indicator.is-ready {
  opacity: 1;
  transition:
    transform var(--anim-duration-slow) var(--anim-easing-spring),
    width var(--anim-duration-slow) var(--anim-easing-spring),
    height var(--anim-duration-slow) var(--anim-easing-spring),
    opacity var(--anim-duration-fast) var(--anim-easing);
}
.nav-indicator.no-anim { transition: none; }

.nav-toggle {
  display: none;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: transparent;
  font-size: 22px;
  cursor: pointer;
  transition:
    background-color var(--anim-duration) var(--anim-easing),
    border-color var(--anim-duration) var(--anim-easing);
}
.nav-toggle:hover { background: rgba(27, 26, 35, 0.04); }
.nav-toggle:active { background: rgba(27, 26, 35, 0.08); }
.nav-toggle:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.nav-toggle .nav-toggle__close,
.nav-toggle[aria-expanded="true"] .nav-toggle__open { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__close { display: block; }

@media (max-width: 767px) {
  .nav-toggle { display: grid; }

  .site-nav {
    position: absolute;
    top: calc(var(--header-h) - 4px);
    left: 12px;
    right: 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 10px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition:
      opacity var(--anim-duration) var(--anim-easing),
      transform var(--anim-duration) var(--anim-easing),
      visibility 0s linear var(--anim-duration);
  }
  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition:
      opacity var(--anim-duration) var(--anim-easing),
      transform var(--anim-duration) var(--anim-easing),
      visibility 0s;
  }
  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-link { width: 100%; min-height: 48px; padding: 0 14px; font-size: 16px; }
  .site-nav__cta { width: 100%; min-height: 48px; }
}

/* ---------- Hero ---------- */
.hero { padding: clamp(48px, 9vw, 112px) 0 clamp(64px, 9vw, 120px); }
.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  align-items: center;
  gap: clamp(40px, 6vw, 80px);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 13px;
  color: var(--ink-2);
  box-shadow: var(--shadow-1);
}
.hero__badge svg.lucide { color: var(--success); font-size: 15px; }

.hero__title {
  margin-top: 24px;
  font-size: clamp(34px, 2.6vw + 18px, 54px);
  line-height: 1.16;
  font-weight: 700;
  letter-spacing: -0.025em;
}
.hero__title .nobr { display: inline-block; white-space: nowrap; }
.hero__title .nobr:first-child { display: block; }
.hero__subtitle {
  margin-top: 20px;
  max-width: 34em;
  font-size: clamp(16px, 0.4vw + 14.5px, 18px);
  color: var(--ink-2);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.hero__note { margin-top: 16px; font-size: 13.5px; color: var(--ink-3); }

.hero__copy > *,
.roster {
  animation: rise var(--anim-duration-slow) var(--anim-easing) both;
}
.hero__copy > :nth-child(2) { animation-delay: 40ms; }
.hero__copy > :nth-child(3) { animation-delay: 80ms; }
.hero__copy > :nth-child(4),
.hero__copy > :nth-child(5) { animation-delay: 120ms; }
.roster { animation-delay: 160ms; }

@keyframes rise {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

/* Roster mock */
.roster {
  min-width: 0;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-3);
}
.roster__bar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 2px 2px 16px;
  border-bottom: 1px solid var(--line);
}
.roster__title { font-weight: 600; font-size: 15px; font-variant-numeric: tabular-nums; }
.roster__meta { font-size: 12.5px; color: var(--ink-3); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
}
.chip--success { background: var(--success-soft); color: var(--success-ink); }
.chip--primary { background: var(--primary-soft); color: var(--primary); }

.roster__grid {
  display: grid;
  grid-template-columns: 76px repeat(7, minmax(0, 1fr));
  grid-auto-rows: 44px;
  column-gap: 4px;
  row-gap: 6px;
  align-items: center;
  padding-top: 12px;
  font-size: 12px;
}
.roster__day {
  align-self: end;
  padding-bottom: 2px;
  text-align: center;
  color: var(--ink-3);
  font-size: 12px;
}
.roster__grid > .roster__corner,
.roster__grid > .roster__day { height: 24px; }
.roster__crew {
  grid-column: 1;
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  min-width: 0;
}
.roster__crew b { font-weight: 600; font-size: 12.5px; white-space: nowrap; }
.roster__crew small { color: var(--ink-3); font-size: 11px; letter-spacing: 0.02em; }

.duty {
  grid-column: calc(var(--s) + 1) / calc(var(--e) + 1);
  display: flex;
  align-items: center;
  height: 34px;
  padding: 0 8px;
  overflow: hidden;
  border-radius: 7px;
  background: var(--primary-soft);
  border: 1px solid rgba(79, 70, 229, 0.14);
  color: #3B33C4;
  font-weight: 600;
  font-size: 11.5px;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-variant-numeric: tabular-nums;
}
.duty--rest {
  justify-content: center;
  background: transparent;
  border: 1px dashed var(--line-strong);
  color: var(--ink-3);
  font-weight: 500;
}
.duty--standby {
  justify-content: center;
  background: rgba(27, 26, 35, 0.04);
  border-color: transparent;
  color: var(--ink-2);
  font-weight: 500;
}
.duty--moved {
  background: var(--success-soft);
  border-color: rgba(13, 148, 136, 0.35);
  color: var(--success-ink);
}
.roster__foot {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--ink-3);
}
.legend {
  width: 10px;
  height: 10px;
  flex: none;
  border-radius: 3px;
}
.legend--moved { background: var(--success-soft); border: 1px solid rgba(13, 148, 136, 0.5); }

/* ---------- Sections ---------- */
.section { padding: clamp(72px, 10vw, 128px) 0; border-top: 1px solid var(--line); }
.section-head { max-width: 560px; }
.section-head--center { margin: 0 auto; text-align: center; }
.section-title {
  font-size: clamp(28px, 1.6vw + 20px, 40px);
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.section-lead { margin-top: 14px; font-size: 16.5px; color: var(--ink-2); }

/* ---------- Features accordion ---------- */
.features__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
.features__head { position: sticky; top: calc(var(--header-h) + 40px); }

.accordion { display: grid; gap: 12px; }

.feature {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
  transition:
    border-color var(--anim-duration) var(--anim-easing),
    box-shadow var(--anim-duration) var(--anim-easing);
}
.feature:hover { border-color: var(--line-strong); }
.feature.is-open {
  border-color: var(--primary-line);
  box-shadow: var(--shadow-2);
}

.feature__heading { font-size: inherit; font-weight: inherit; }
.feature__trigger {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  min-height: 72px;
  padding: 18px 20px;
  border: 0;
  border-radius: var(--radius-lg);
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.feature__trigger:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.feature__icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: var(--radius);
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 19px;
}
.feature__text { display: flex; flex-direction: column; gap: 2px; min-width: 0; flex: 1; }
.feature__title { font-weight: 600; font-size: 16.5px; }
.feature__desc { font-size: 14px; color: var(--ink-3); }
.feature__chevron {
  font-size: 18px;
  color: var(--ink-3);
  transition:
    transform var(--anim-duration) var(--anim-easing),
    color var(--anim-duration) var(--anim-easing);
}
.feature__trigger:hover .feature__chevron { color: var(--ink); }
.feature__trigger[aria-expanded="true"] .feature__chevron { transform: rotate(90deg); color: var(--primary); }

.feature__panel {
  display: grid;
  grid-template-rows: 0fr;
  visibility: hidden;
  transition:
    grid-template-rows var(--anim-duration) var(--anim-easing),
    visibility 0s linear var(--anim-duration);
}
.feature__panel.is-open {
  grid-template-rows: 1fr;
  visibility: visible;
  transition: grid-template-rows var(--anim-duration) var(--anim-easing), visibility 0s;
}
.feature__body { min-height: 0; overflow: hidden; }
.feature__list {
  display: grid;
  gap: 10px;
  padding: 0 20px 20px 76px;
}
.feature__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14.5px;
  color: var(--ink-2);
  opacity: 0;
  transform: translateY(4px) scale(0.98);
  transition:
    opacity var(--anim-duration-fast) var(--anim-easing),
    transform var(--anim-duration-fast) var(--anim-easing);
}
.feature__list li svg.lucide { margin-top: 0.3em; color: var(--success); }
.feature__panel.is-open .feature__list li {
  opacity: 1;
  transform: none;
  transition:
    opacity var(--anim-duration) var(--anim-easing) calc(var(--i) * var(--anim-stagger) + 60ms),
    transform var(--anim-duration) var(--anim-easing-spring) calc(var(--i) * var(--anim-stagger) + 60ms);
}

/* ---------- Pricing ---------- */
.plans {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 56px;
  align-items: stretch;
}
.plan {
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}
.plan--featured {
  border-color: var(--primary-line);
  box-shadow: var(--shadow-3), 0 0 0 3px var(--primary-soft);
}
.plan__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.plan__name { font-size: 17px; font-weight: 600; }
.plan__fit { margin-top: 6px; font-size: 14px; color: var(--ink-3); }
.plan__price { display: flex; align-items: baseline; gap: 6px; margin-top: 24px; min-height: 48px; }
.plan__amount {
  font-size: 40px;
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.plan__amount--text { font-size: 32px; letter-spacing: -0.01em; }
.plan__unit { font-size: 14px; color: var(--ink-3); }
.plan__cta { margin-top: 24px; width: 100%; }
.plan__list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  color: var(--ink-2);
}
.plan__list li { display: flex; align-items: flex-start; gap: 10px; }
.plan__list svg.lucide { margin-top: 0.3em; color: var(--success); }

/* ---------- Demo form ---------- */
.demo__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
.demo__points { display: grid; gap: 12px; margin-top: 32px; color: var(--ink-2); }
.demo__points li { display: flex; align-items: flex-start; gap: 10px; }
.demo__points svg.lucide { margin-top: 0.32em; color: var(--success); }

.demo-form {
  display: grid;
  gap: 18px;
  padding: clamp(24px, 3vw, 32px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-3);
}
.field { display: grid; gap: 6px; }
.field__label { font-size: 14px; font-weight: 600; }
.field__input {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: 16px;
  transition:
    border-color var(--anim-duration-fast) var(--anim-easing),
    box-shadow var(--anim-duration-fast) var(--anim-easing);
}
.field__input::placeholder { color: #A3A2AC; }
.field__input:hover { border-color: rgba(27, 26, 35, 0.28); }
.field__input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.16); }
.field__input[aria-invalid="true"] { border-color: var(--danger); background: #FFFBFB; }
.field__input[aria-invalid="true"]:focus { box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.14); }

.field__error {
  display: none;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  color: var(--danger-ink);
}
.field__error.is-visible { display: flex; animation: rise var(--anim-duration-fast) var(--anim-easing); }

.submit { margin-top: 6px; }

.form-status { min-height: 1.65em; font-size: 14px; text-align: center; color: var(--ink-3); }
.form-status.is-success { color: var(--success-ink); }
.form-status.is-error { color: var(--danger-ink); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0 calc(40px + env(safe-area-inset-bottom)); }
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
}
.brand--sm { font-size: 15px; }
.brand--sm .brand__mark { width: 24px; height: 24px; font-size: 13px; border-radius: 7px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 4px 8px; }
.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--ink-2);
  transition: color var(--anim-duration) var(--anim-easing);
}
.footer-links a:hover { color: var(--primary); }
.footer-links a:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.site-footer__copy { width: 100%; font-size: 13px; color: var(--ink-3); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero__inner,
  .features__inner,
  .demo__inner { grid-template-columns: minmax(0, 1fr); }
  .features__head { position: static; }
  .plans { grid-template-columns: minmax(0, 1fr); max-width: 480px; margin-left: auto; margin-right: auto; }
  .plan--featured { order: -1; }
}

@media (max-width: 520px) {
  .container { padding-left: max(20px, env(safe-area-inset-left)); padding-right: max(20px, env(safe-area-inset-right)); }
  .hero__actions .btn { flex: 1 1 100%; }
  .roster { padding: 14px; }
  .roster__bar { flex-direction: column; }
  .roster__grid { grid-template-columns: 52px repeat(7, minmax(0, 1fr)); column-gap: 3px; }
  .roster__crew b { font-size: 11.5px; }
  .roster__crew small { display: none; }
  .duty { padding: 0 5px; font-size: 10px; }
  .feature__trigger { gap: 12px; padding: 16px; }
  .feature__list { padding: 0 16px 18px 68px; }
  .plan { padding: 24px; }
}