/* =========================================================
   CarePilot AI — marketing site styles
   Design system: native CSS, brand tokens from apps/mobile/src/theme/brand.ts
   Theme: light default, dark via prefers-color-scheme (Section 6.C)
   Radius scale: buttons = full pill, cards = 16px, inputs = 10px
   ========================================================= */

@font-face {
  font-family: "Plus Jakarta Sans";
  src: url("../fonts/PlusJakartaSans-Variable.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Brand hue (packages/../brand.ts is 190° cyan) reproduced here at a
     calmer saturation for web surfaces. The original brand.ts value
     (#0bbbdf, 91% saturation) reads as neon/"AI glow" at UI scale, so the
     site uses a deepened, desaturated interpretation of the same hue
     instead of the literal token — recognisably CarePilot, not neon. */
  --color-primary: #1e9fb8;
  --color-primary-dark: #13849a;
  /* AA/AAA-safe variant for small/body TEXT on light surfaces (5.7:1+). */
  --color-primary-text: #0e6d81;
  --color-secondary: #0b3c5d;
  --color-accent: #df9a2a;

  /* Fixed navy used for the security band — intentionally constant across
     light/dark so the one "color block" section reads the same in both. */
  --color-navy-band: #0b3c5d;
  --color-navy-band-item: #0a2f49;

  /* True neutrals (zinc scale, ~0-4% saturation) for backgrounds, surfaces,
     borders and body text. Colour is reserved for --color-primary/-accent
     so it reads as one deliberate accent, not a blue tint on everything. */
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-surface-alt: #f4f4f5;

  --color-text: #18181b;
  --color-text-secondary: #52525b;
  --color-text-tertiary: #5f5f68;

  --color-border: #e4e4e7;
  --color-divider: #f0f0f1;

  --color-success: #16a34a;
  --color-success-bg: #ecfdf3;
  --color-warning-bg: #fef3c7;
  --color-danger: #dc2626;

  --shadow-sm: 0 1px 2px rgba(24, 24, 27, 0.06);
  --shadow-md: 0 8px 24px rgba(24, 24, 27, 0.10);
  --shadow-lg: 0 24px 60px rgba(24, 24, 27, 0.16);

  --radius-card: 16px;
  --radius-input: 10px;
  --radius-pill: 999px;

  --nav-height: 72px;
  --container: 1200px;

  --font-sans: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system,
    "Segoe UI", Roboto, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #3abfd9;
    --color-primary-dark: #1fa6c1;
    --color-primary-text: #55cfe7;
    --color-accent: #e2ae5a;

    /* True neutral near-black (zinc), not navy, so the dark theme doesn't
       read as a "blue glow" dashboard. */
    --color-bg: #09090b;
    --color-surface: #18181b;
    --color-surface-alt: #232326;

    --color-text: #f4f4f5;
    --color-text-secondary: #a1a1aa;
    --color-text-tertiary: #94949c;

    --color-border: #2a2a2e;
    --color-divider: #1f1f22;

    --color-success: #34d399;
    --color-success-bg: #0f2c22;
    --color-warning-bg: #2c2410;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.5);
  }
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }
input, textarea { font: inherit; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

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

.icon { width: 1em; height: 1em; stroke: currentColor; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out),
    background 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-primary {
  background: var(--color-primary);
  color: #04222c;
}
.btn-primary:hover { background: var(--color-primary-dark); box-shadow: var(--shadow-md); }
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary-text); }
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-secondary);
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover { border-color: var(--color-primary); }
.btn-block { width: 100%; }

/* ---------- Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid var(--color-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.brand-mark { width: 34px; height: 34px; flex-shrink: 0; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color 0.15s var(--ease-out);
}
.nav-links a:hover { color: var(--color-primary-text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

.mobile-nav {
  position: fixed;
  inset: var(--nav-height) 0 0 0;
  background: var(--color-bg);
  z-index: 49;
  padding: 32px 24px;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s var(--ease-out), opacity 0.25s var(--ease-out);
}
.mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-nav ul { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav a {
  display: block;
  padding: 14px 4px;
  font-size: 1.1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--color-divider);
}
.mobile-nav .btn { margin-top: 24px; }

/* ---------- Hero ---------- */
.hero {
  padding: 72px 0 96px;
}
.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero-copy h1 {
  font-size: clamp(2.25rem, 4.4vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--color-secondary);
}
@media (prefers-color-scheme: dark) {
  .hero-copy h1 { color: var(--color-text); }
}
.hero-copy h1 em {
  font-style: normal;
  color: var(--color-primary-text);
}
.hero-copy p {
  margin-top: 20px;
  max-width: 46ch;
  font-size: 1.1rem;
  color: var(--color-text-secondary);
}
.hero-actions {
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* Hero interactive demo card */
.demo-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.demo-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface-alt);
}
.demo-card-head .icon { color: var(--color-primary-dark); width: 20px; height: 20px; }
.demo-card-head strong { font-size: 0.92rem; }
.demo-card-head span {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-success);
  background: var(--color-success-bg);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}
.demo-body {
  padding: 20px;
  min-height: 258px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.demo-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.demo-chip {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  transition: border-color 0.15s var(--ease-out), color 0.15s var(--ease-out), background 0.15s var(--ease-out);
}
.demo-chip:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary-text);
}
.demo-chip:disabled { opacity: 0.45; cursor: default; }

.demo-answer { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; gap: 12px; }
.demo-bubble {
  background: var(--color-surface-alt);
  border-radius: var(--radius-card);
  border-top-left-radius: 4px;
  padding: 14px 16px;
  font-size: 0.88rem;
  color: var(--color-text);
  min-height: 1.4em;
}
.demo-bubble .caret {
  display: inline-block;
  width: 2px; height: 1em;
  background: var(--color-primary);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 0.9s step-end infinite;
}
@media (prefers-reduced-motion: reduce) { .demo-bubble .caret { animation: none; } }
@keyframes blink { 50% { opacity: 0; } }

.demo-source {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--color-text-tertiary);
  padding-left: 4px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}
.demo-source.is-visible { opacity: 1; transform: translateY(0); }
.demo-source .icon { width: 14px; height: 14px; color: var(--color-text-tertiary); }

/* ---------- Pillars strip ---------- */
.pillars {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}
.pillars .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.pillar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 20px;
  border-left: 1px solid var(--color-divider);
}
.pillar:first-child { border-left: none; }
.pillar .icon { width: 22px; height: 22px; color: var(--color-text-tertiary); flex-shrink: 0; }
.pillar span { font-size: 0.86rem; font-weight: 600; color: var(--color-text-secondary); }

/* ---------- Section shell ---------- */
section { padding: 96px 0; }
.section-head { max-width: 640px; margin-bottom: 48px; }
.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary-text);
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(1.7rem, 2.8vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--color-secondary);
}
@media (prefers-color-scheme: dark) { .section-head h2 { color: var(--color-text); } }
.section-head p {
  margin-top: 14px;
  font-size: 1.02rem;
  color: var(--color-text-secondary);
  max-width: 60ch;
}

/* ---------- Feature explorer (tabs) ---------- */
.explorer .container {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: start;
}
.tab-list { display: flex; flex-direction: column; gap: 2px; }
.tab-btn {
  position: relative;
  text-align: left;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px 18px 24px;
  border-radius: var(--radius-card);
  border: 1px solid transparent;
  background: transparent;
  transition: background 0.2s var(--ease-out);
}
.tab-btn::before {
  content: "";
  position: absolute;
  left: 0; top: 10px; bottom: 10px;
  width: 3px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  transform: scaleY(0);
  transform-origin: center;
  transition: transform 0.25s var(--ease-out);
}
.tab-btn:hover { background: var(--color-surface); }
.tab-btn .icon {
  width: 22px; height: 22px;
  color: var(--color-text-tertiary);
  flex-shrink: 0;
  margin-top: 2px;
  transition: color 0.2s var(--ease-out);
}
.tab-btn strong { display: block; font-size: 1rem; margin-bottom: 4px; }
.tab-btn p { font-size: 0.86rem; color: var(--color-text-tertiary); }
.tab-btn[aria-selected="true"] {
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}
.tab-btn[aria-selected="true"]::before { transform: scaleY(1); }
.tab-btn[aria-selected="true"] .icon { color: var(--color-primary-dark); }

.tab-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.tab-panel[hidden] { display: none; }
.tab-panel h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 12px;
}
@media (prefers-color-scheme: dark) { .tab-panel h3 { color: var(--color-text); } }
.tab-panel > p { color: var(--color-text-secondary); margin-bottom: 24px; max-width: 56ch; }
.tab-feature-list { display: grid; gap: 18px; }
.tab-feature-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.92rem;
  color: var(--color-text);
}
.tab-feature-list .icon {
  width: 18px; height: 18px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ---------- How it works (step flow) ---------- */
.flow { background: var(--color-surface-alt); }
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.flow-step {
  position: relative;
  padding: 0 20px 0 0;
}
.flow-step::before {
  content: "";
  position: absolute;
  top: 27px;
  left: calc(27px + 4px);
  right: -20px;
  height: 2px;
  background: var(--color-border);
}
.flow-step::after {
  content: "";
  position: absolute;
  top: 27px;
  left: calc(27px + 4px);
  right: -20px;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.7s var(--ease-out);
  transition-delay: 0.15s;
}
.flow-step.is-visible::after { transform: scaleX(1); }
.flow-step:last-child::before,
.flow-step:last-child::after { display: none; }
.flow-step:nth-child(2)::after { transition-delay: 0.35s; }
.flow-step:nth-child(3)::after { transition-delay: 0.55s; }
.flow-step-num {
  width: 54px; height: 54px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-sm);
}
.flow-step-num .icon { width: 24px; height: 24px; color: var(--color-primary-dark); }
.flow-step h3 { font-size: 1.02rem; font-weight: 700; margin-bottom: 8px; }
.flow-step p { font-size: 0.88rem; color: var(--color-text-secondary); }

/* ---------- Security grid ---------- */
.security { background: var(--color-navy-band); color: #eef4f8; }
.security .eyebrow { color: var(--color-accent); }
.security .section-head h2, .security .section-head p { color: #eef4f8; }
.security .section-head p { color: #b9cddc; }
.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.security-item {
  background: #0a2f49;
  padding: 28px 30px;
  display: flex;
  gap: 16px;
  transition: background 0.2s var(--ease-out);
}
.security-item:hover { background: #0c3654; }
.security-item .icon {
  width: 22px; height: 22px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.security-item h3 { font-size: 0.98rem; font-weight: 700; margin-bottom: 6px; }
.security-item p { font-size: 0.86rem; color: #b9cddc; }

/* ---------- FAQ ---------- */
.faq-list { border-top: 1px solid var(--color-border); max-width: 760px; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 4px;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--color-text);
}
.faq-q .icon {
  width: 18px; height: 18px;
  color: var(--color-text-tertiary);
  flex-shrink: 0;
  transition: transform 0.25s var(--ease-out);
}
.faq-item.is-open .faq-q .icon { transform: rotate(180deg); }
.faq-a {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s var(--ease-out);
}
.faq-item.is-open .faq-a { max-height: 220px; }
.faq-a p { padding: 0 4px 22px; color: var(--color-text-secondary); max-width: 62ch; font-size: 0.94rem; }

/* ---------- Contact ---------- */
.contact .container {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}
.contact-info-list { margin-top: 28px; display: grid; gap: 18px; }
.contact-info-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-info-item .icon {
  width: 20px; height: 20px;
  color: var(--color-text-tertiary);
  flex-shrink: 0;
  margin-top: 2px;
}
.contact-info-item strong { display: block; font-size: 0.92rem; }
.contact-info-item span, .contact-info-item a { font-size: 0.88rem; color: var(--color-text-secondary); }
.contact-info-item a:hover { color: var(--color-primary-text); }

.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 6px; margin-bottom: 18px; }
.field label { font-size: 0.84rem; font-weight: 600; color: var(--color-text); }
.field input, .field textarea {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  padding: 12px 14px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.94rem;
  transition: border-color 0.15s var(--ease-out), box-shadow 0.15s var(--ease-out);
}
.field input::placeholder, .field textarea::placeholder { color: var(--color-text-tertiary); }
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 25%, transparent);
}
.field textarea { resize: vertical; min-height: 110px; }
.field-error {
  font-size: 0.8rem;
  color: var(--color-danger);
  display: none;
}
.field.has-error input, .field.has-error textarea { border-color: var(--color-danger); }
.field.has-error .field-error { display: block; }

.form-status {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius-input);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 18px;
}
.form-status.is-visible { display: flex; }
.form-status.success { background: var(--color-success-bg); color: var(--color-success); }
.form-status.error { background: var(--color-warning-bg); color: #92400e; }
.form-status .icon { width: 18px; height: 18px; flex-shrink: 0; }

.form-submit { position: relative; }
.form-submit .spinner {
  display: none;
  width: 16px; height: 16px;
  border: 2px solid rgba(4, 34, 44, 0.3);
  border-top-color: #04222c;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.is-submitting .form-submit .spinner { display: inline-block; }
.is-submitting .form-submit .btn-label { opacity: 0.7; }

/* ---------- Final CTA ---------- */
.final-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-card);
  margin-inline: 24px;
  padding: 64px 40px;
  text-align: center;
}
.final-cta h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 800;
  color: #04222c;
  max-width: 44ch;
  margin-inline: auto;
}
.final-cta p { margin-top: 12px; color: rgba(4, 34, 44, 0.75); font-size: 1rem; }
.final-cta .btn { margin-top: 28px; }
.final-cta .btn-secondary { background: #04222c; color: #fff; border-color: transparent; }
.final-cta .btn-secondary:hover { background: #06303e; }

/* ---------- Footer ---------- */
.site-footer { padding-top: 72px; }
.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
}
.footer-brand p { margin-top: 14px; color: var(--color-text-secondary); font-size: 0.9rem; max-width: 32ch; }
.footer-col h4 { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-tertiary); margin-bottom: 16px; }
.footer-col ul { display: grid; gap: 12px; }
.footer-col a { font-size: 0.9rem; color: var(--color-text-secondary); }
.footer-col a:hover { color: var(--color-primary-text); }
.footer-bottom {
  padding: 24px 0 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--color-text-tertiary);
}

/* ---------- Reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .pillars .container { grid-template-columns: repeat(2, 1fr); }
  .pillar:nth-child(3) { border-left: none; }
  .pillar:nth-child(1), .pillar:nth-child(2) { border-bottom: 1px solid var(--color-divider); }
  .flow-steps { grid-template-columns: repeat(2, 1fr); gap: 40px 20px; }
  .flow-step::before { display: none; }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .hero .container { grid-template-columns: 1fr; }
  .hero { padding: 40px 0 64px; }
  .explorer .container { grid-template-columns: 1fr; }
  .security-grid { grid-template-columns: 1fr; }
  .contact .container { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .container { padding-inline: 18px; }
  section { padding: 64px 0; }
  .flow-steps { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .final-cta { margin-inline: 12px; padding: 48px 24px; }
}