/* ═══════════════════════════════════════════════════════
   Provio — Design System & Landing Page Styles
   "Proof, sorted."

   Aesthetic: Refined precision. Confident infrastructure.
   Think Stripe's clarity, Linear's restraint, Wise's trust.
   ═══════════════════════════════════════════════════════ */


/* ── Tokens ─────────────────────────────────────────── */

:root {
  /* Indigo — brand primary */
  --indigo-50:  #F5F3FF;
  --indigo-100: #EDE9FE;
  --indigo-200: #DDD6FE;
  --indigo-400: #A78BFA;
  --indigo-500: #8B5CF6;
  --indigo-600: #6C5CE7;
  --indigo-700: #5B4BD4;
  --indigo-900: #3B2E8A;

  /* Text */
  --text-primary:   #1A1A2E;
  --text-secondary:  #555570;
  --text-tertiary:   #8888A0;

  /* Surfaces */
  --surface:        #FFFFFF;
  --surface-subtle: #FAFAFE;

  /* Borders */
  --border:       #E8E6F0;
  --border-light: #F0EEF5;

  /* Status — functional only, never brand */
  --green: #22C55E;
  --green-subtle: #F0FDF4;
  --amber: #F59E0B;
  --amber-subtle: #FFFBEB;
  --red:   #EF4444;

  /* Radius */
  --radius-sm:   6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-pill: 100px;

  /* Shadows — layered for depth */
  --shadow-xs:  0 1px 2px rgba(26, 26, 46, 0.04);
  --shadow-sm:  0 1px 3px rgba(26, 26, 46, 0.06), 0 1px 2px rgba(26, 26, 46, 0.04);
  --shadow-md:  0 4px 12px rgba(26, 26, 46, 0.06), 0 2px 4px rgba(26, 26, 46, 0.04);
  --shadow-lg:  0 8px 24px rgba(26, 26, 46, 0.08), 0 4px 8px rgba(26, 26, 46, 0.04);
  --shadow-btn: 0 4px 14px rgba(108, 92, 231, 0.3);

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Layout */
  --container-max: 1120px;
  --container-pad: 2rem;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-base: 200ms;
  --duration-slow: 350ms;
}


/* ── Reset ──────────────────────────────────────────── */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

button, input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  outline: none;
}

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

ul, ol { list-style: none; }


/* ── Accessibility ──────────────────────────────────── */

.skip-to-content {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--indigo-600);
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  z-index: 9999;
  transition: top var(--duration-fast) var(--ease-out);
}

.skip-to-content:focus {
  top: 1rem;
}

/* Focus ring — all interactive elements */
:focus-visible {
  outline: 2px solid var(--indigo-600);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Screen-reader only utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}


/* ── Layout ─────────────────────────────────────────── */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

section {
  padding: 6rem 0;
}


/* ── Typography ─────────────────────────────────────── */

h1, h2, h3, h4 {
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h2 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.25rem;
}

p {
  color: var(--text-secondary);
}

.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--indigo-600);
  margin-bottom: 1rem;
}


/* ── Buttons ────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease-in-out),
    color var(--duration-fast) var(--ease-in-out),
    border-color var(--duration-fast) var(--ease-in-out),
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out);
  white-space: nowrap;
}

.btn-primary {
  background: var(--indigo-600);
  color: white;
}

.btn-primary:hover {
  background: var(--indigo-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-btn);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--indigo-600);
  border: 1.5px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--indigo-200);
  background: var(--indigo-50);
}

.btn-secondary:active {
  background: var(--indigo-100);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
}


/* ── Nav ────────────────────────────────────────────── */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.nav-wordmark {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-logo {
  height: 5rem;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-in-out);
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
}

/* Hamburger (mobile) */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast);
}

.nav-hamburger:hover {
  background: var(--surface-subtle);
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition:
    transform var(--duration-base) var(--ease-out),
    opacity var(--duration-fast);
}

.nav-hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav panel */
.nav-mobile-panel {
  display: none;
  position: fixed;
  top: 6.5rem;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 99;
  padding: 2rem;
  flex-direction: column;
  gap: 1.5rem;
}

.nav-mobile-panel.open {
  display: flex;
}

.nav-mobile-panel a {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
  padding: 0.5rem 0;
}


/* ── Hero ───────────────────────────────────────────── */

.hero {
  padding: 2.5rem 0 4rem;
  min-height: calc(100vh - 4rem);
  display: flex;
  align-items: center;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-copy {
  max-width: 520px;
}

.motto {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
}

.tagline {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--indigo-600);
  margin-bottom: 2rem;
}

/* Scrolling headline */
.scroll-line {
  font-size: 1.4rem;
  line-height: 1.5;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0 0.3em;
}

.scroll-word {
  display: inline-block;
  position: relative;
  height: 1.5em;
  overflow: hidden;
  vertical-align: bottom;
  min-width: 20em;
}

.scroll-word-inner {
  display: block;
  font-weight: 600;
  color: var(--indigo-600);
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  transition:
    transform 0.4s var(--ease-out),
    opacity 0.4s var(--ease-out);
}

.scroll-word-inner.slide-out {
  transform: translateY(-100%);
  opacity: 0;
}

.scroll-word-inner.slide-in-prepare {
  transform: translateY(60%);
  opacity: 0;
  transition: none;
}

.descriptor-follow {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 2.5rem;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}


/* ── Interactive Widget ─────────────────────────────── */

.widget {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  width: 100%;
}

.widget-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 420px;
}

/* Input panel (left) */
.widget-input {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-light);
}

.widget-title {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.widget-subtitle {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  margin-bottom: 1.25rem;
  line-height: 1.4;
}

/* Widget steps */
.widget-step {
  display: none;
}

.widget-step.active {
  display: block;
  animation: widgetStepIn 0.25s var(--ease-out) forwards;
}

@keyframes widgetStepIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Chips */
.widget-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

.widget-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition:
    border-color var(--duration-fast) var(--ease-in-out),
    color var(--duration-fast) var(--ease-in-out),
    background var(--duration-fast) var(--ease-in-out);
  white-space: nowrap;
}

.widget-chip:hover {
  border-color: var(--indigo-400);
  color: var(--indigo-700);
  background: var(--indigo-50);
}

.widget-chip.selected {
  border-color: var(--indigo-400);
  color: var(--indigo-700);
  background: var(--indigo-50);
  font-weight: 600;
}

.widget-chip-icon {
  font-size: 0.85rem;
  line-height: 1;
}

/* Text inputs */
.widget-input-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.widget-text-input {
  width: 100%;
  padding: 0.65rem 0.8rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition:
    border-color var(--duration-fast) var(--ease-in-out),
    background var(--duration-fast) var(--ease-in-out),
    box-shadow var(--duration-fast) var(--ease-in-out);
}

.widget-text-input:focus {
  border-color: var(--indigo-400);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.08);
}

.widget-text-input::placeholder {
  color: var(--text-tertiary);
}

/* Selected category pill */
.widget-selected-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--indigo-700);
  background: var(--indigo-50);
  border: 1px solid var(--indigo-200);
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.6rem;
  margin-bottom: 0.85rem;
}

.widget-selected-pill .remove {
  cursor: pointer;
  opacity: 0.5;
  font-size: 0.85rem;
  line-height: 1;
  margin-left: 0.1rem;
  transition: opacity var(--duration-fast);
}

.widget-selected-pill .remove:hover {
  opacity: 1;
}

/* Jurisdiction hint */
.widget-jurisdiction-hint {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--green);
  margin-top: 0.45rem;
  opacity: 0;
  transition: opacity 0.3s var(--ease-in-out);
}

.widget-jurisdiction-hint.visible {
  opacity: 1;
}

.widget-address-hint {
  font-size: 0.72rem;
  color: var(--text-tertiary);
  margin-top: 0.4rem;
  line-height: 1.4;
}

.widget-address-hint kbd {
  display: inline-block;
  font-family: var(--font);
  font-size: 0.68rem;
  font-weight: 500;
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.05rem 0.3rem;
}

/* Back link */
.widget-back {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  cursor: pointer;
  margin-top: auto;
  padding-top: 1rem;
  transition: color var(--duration-fast);
}

.widget-back:hover {
  color: var(--text-secondary);
}

/* Dossier panel (right) */
.widget-dossier {
  padding: 1.75rem;
  background: var(--surface-subtle);
  display: flex;
  flex-direction: column;
}

/* Empty state */
.widget-dossier-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-tertiary);
  gap: 0.5rem;
}

.widget-dossier-empty svg {
  width: 48px;
  height: 48px;
  opacity: 0.3;
  margin-bottom: 0.25rem;
}

.widget-dossier-empty p {
  font-size: 0.8rem;
  line-height: 1.5;
  max-width: 180px;
  color: var(--text-tertiary);
}

/* Dossier card (populated) */
.widget-dossier-card {
  display: none;
  flex-direction: column;
  flex: 1;
}

.widget-dossier-card.visible {
  display: flex;
  animation: widgetStepIn 0.3s var(--ease-out) forwards;
}

.widget-dossier-header {
  margin-bottom: 1rem;
}

.widget-dossier-title {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.widget-dossier-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.widget-dossier-subject {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.widget-dossier-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--indigo-700);
  background: var(--indigo-50);
  border: 1px solid var(--indigo-200);
  border-radius: 4px;
  padding: 0.15rem 0.4rem;
}

/* Requirements list */
.widget-requirements {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.widget-requirement-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.7rem;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xs);
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.widget-requirement-row.visible {
  opacity: 1;
  transform: translateY(0);
}

.widget-requirement-status {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--border);
  flex-shrink: 0;
  background: var(--surface);
}

.widget-requirement-name {
  flex: 1;
  font-size: 0.8rem;
  font-weight: 450;
  color: var(--text-primary);
}

.widget-requirement-tag {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-tertiary);
}

/* Status bar */
.widget-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-light);
  opacity: 0;
  transition: opacity 0.4s var(--ease-in-out);
}

.widget-status-bar.visible {
  opacity: 1;
}

.widget-status-text {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

.widget-status-text strong {
  color: var(--text-secondary);
  font-weight: 600;
}

/* Widget CTA button */
.widget-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.45rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: white;
  background: var(--indigo-600);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease-in-out),
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out);
}

.widget-cta:hover {
  background: var(--indigo-700);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(108, 92, 231, 0.25);
}

/* Email capture (replaces CTA button) */
.widget-email-capture {
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-light);
  animation: widgetStepIn 0.3s var(--ease-out) forwards;
}

.widget-email-capture.visible {
  display: flex;
}

.widget-email-row {
  display: flex;
  gap: 0.4rem;
}

.widget-email-input {
  flex: 1;
  padding: 0.5rem 0.7rem;
  font-size: 0.8rem;
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition:
    border-color var(--duration-fast),
    box-shadow var(--duration-fast);
}

.widget-email-input:focus {
  border-color: var(--indigo-400);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.08);
}

.widget-email-input::placeholder {
  color: var(--text-tertiary);
}

.widget-email-confirm {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--green);
  padding: 0.25rem 0;
  animation: widgetStepIn 0.3s var(--ease-out) forwards;
}


/* ── Problem Section ────────────────────────────────── */

.problem-section {
  background: var(--surface-subtle);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.problem-section h2 {
  margin-bottom: 3rem;
}

.problem-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.problem-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition:
    box-shadow var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
}

.problem-card:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.problem-card-diagram {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.problem-diagram-img {
  width: 70%;
  height: auto;
  object-fit: contain;
}

.problem-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
  text-align: center;
}

.problem-card p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.problem-impact {
  margin-top: 0.75rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.55;
}


/* ── How It Works ───────────────────────────────────── */

.how-section h2 {
  margin-bottom: 3.5rem;
}

.steps {
  display: flex;
  align-items: stretch;
  gap: 0;
  position: relative;
}

.step-card {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  position: relative;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.step-card:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.07);
  transform: translateY(-2px);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 100px;
  background: var(--indigo-600);
  color: white;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.step-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.step-heading-sub {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--indigo-600);
  margin-bottom: 0.75rem;
}

.step-card > p:last-of-type {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 3rem;
  color: var(--indigo-400);
}

.step-arrow svg {
  width: 28px;
  height: 28px;
}



/* ── Step Micro-Animations ─────────────────────────── */

/* Container — fixed height, centred, overflow-hidden */
.step-anim {
  margin-top: 1.25rem;
  height: 186px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: opacity 0.4s var(--ease-in-out);
}

.step-anim.active {
  opacity: 1;
}

/* Slider — two side-by-side scenes */
.step-slider {
  display: flex;
  width: 200%;
  height: 100%;
  transition: transform 0.5s var(--ease-in-out);
}

.step-slider.shifted {
  transform: translateX(-50%);
}

/* Each scene fills half the slider = 100% of container */
.step-scene {
  width: 50%;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 0.25rem;
}


/* ── Step 1 Scene A — Template picker ────────────── */

.sa-list {
  width: 100%;
  max-width: 230px;
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0;
  box-shadow: var(--shadow-xs);
}

.sa-list-title {
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  padding: 0 0.65rem 0.4rem;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 0.2rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out);
}

.step-scene-a.active .sa-list-title {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.1s;
}

.sa-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 0.65rem;
  border-radius: 0;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out),
              background 0.3s var(--ease-in-out);
}

.step-scene-a.active .sa-list-item { opacity: 1; transform: translateY(0); }
.step-scene-a.active .sa-li-1 { transition-delay: 0.3s; }
.step-scene-a.active .sa-li-2 { transition-delay: 0.5s; }
.step-scene-a.active .sa-li-3 { transition-delay: 0.7s; }
.step-scene-a.active .sa-li-4 { transition-delay: 0.9s; }

.sa-li-name {
  font-size: 0.6rem;
  font-weight: 450;
  color: var(--text-secondary);
  transition: color 0.3s, font-weight 0.3s;
}

.sa-li-arrow {
  width: 10px;
  height: 10px;
  color: white;
  opacity: 0;
  transition: opacity 0.3s;
}

/* Highlight selected template */
.sa-li-selected {
  border-radius: 4px;
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out),
              background 0.35s var(--ease-in-out);
}

.step-scene-a.active-2 .sa-li-selected {
  background: var(--indigo-600);
}

.step-scene-a.active-2 .sa-li-selected .sa-li-name {
  color: white;
  font-weight: 600;
}

.step-scene-a.active-2 .sa-li-selected .sa-li-arrow {
  opacity: 1;
}


/* ── Step 1 Scene B — Dossier card fills in ──────── */

.sa-card {
  width: 100%;
  max-width: 230px;
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.65rem;
  box-shadow: var(--shadow-xs);
}

.sa-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.4rem;
  margin-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-light);
  opacity: 0;
  transform: translateY(5px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out);
}

.step-scene-b.active .sa-header {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.15s;
}

.sa-title {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.sa-badge {
  font-size: 0.5rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--indigo-700);
  background: var(--indigo-50);
  border: 1px solid var(--indigo-200);
  border-radius: 3px;
  padding: 0.1rem 0.3rem;
}

.sa-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.4rem;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  margin-bottom: 0.2rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out);
}

.step-scene-b.active .sa-row-1 { opacity: 1; transform: translateY(0); transition-delay: 0.35s; }
.step-scene-b.active .sa-row-2 { opacity: 1; transform: translateY(0); transition-delay: 0.55s; }
.step-scene-b.active .sa-row-3 { opacity: 1; transform: translateY(0); transition-delay: 0.75s; }
.step-scene-b.active .sa-row-4 { opacity: 1; transform: translateY(0); transition-delay: 0.95s; }

.sa-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  flex-shrink: 0;
  background: var(--surface);
}

.sa-name {
  flex: 1;
  font-size: 0.6rem;
  font-weight: 450;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sa-tag {
  font-size: 0.5rem;
  font-weight: 500;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.sa-footer {
  padding-top: 0.3rem;
  margin-top: 0.1rem;
  border-top: 1px solid var(--border-light);
  opacity: 0;
  transition: opacity 0.3s var(--ease-in-out);
}

.step-scene-b.active .sa-footer {
  opacity: 1;
  transition-delay: 1.15s;
}

.sa-count {
  font-size: 0.55rem;
  font-weight: 500;
  color: var(--text-tertiary);
}


/* ── Step 2 Scene A — Sending a link ─────────────── */

.sc-send {
  width: 100%;
  max-width: 230px;
}

.sc-persona {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.45rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out);
}

.step-scene-a.active .sc-persona { opacity: 1; transform: translateY(0); transition-delay: 0.1s; }
.step-scene-b.active .sc-persona { opacity: 1; transform: translateY(0); transition-delay: 0.15s; }

.sc-persona-left { justify-content: flex-start; }
.sc-persona-right { justify-content: flex-end; }

.sc-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--indigo-600);
  color: white;
  font-size: 0.45rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

.sc-avatar-alt {
  background: var(--green);
}

.sc-persona-name {
  font-size: 0.55rem;
  font-weight: 500;
  color: var(--text-tertiary);
}

.sc-send-card {
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.65rem;
  box-shadow: var(--shadow-xs);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out);
}

.step-scene-a.active .sc-send-card {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.3s;
}

.sc-send-label {
  font-size: 0.55rem;
  font-weight: 500;
  color: var(--text-tertiary);
  margin-bottom: 0.1rem;
}

.sc-send-name {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.sc-send-link {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.5rem;
  color: var(--indigo-600);
  font-weight: 500;
}

.sc-link-icon {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
}

.sc-send-confirm {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.45rem;
  font-size: 0.55rem;
  font-weight: 600;
  color: var(--green);
  opacity: 0;
  transition: opacity 0.3s var(--ease-in-out);
}

.step-scene-a.active-2 .sc-send-confirm {
  opacity: 1;
}

.sc-send-check {
  width: 10px;
  height: 10px;
}


/* ── Step 2 Scene B — Link received ──────────────── */

.sc-receive {
  width: 100%;
  max-width: 230px;
}

.sc-card {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out);
}

.step-scene-b.active .sc-card {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.3s;
}

.sc-bar {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.3rem 0.5rem;
  background: var(--surface-subtle);
  border-bottom: 1px solid var(--border-light);
}

.sc-bar-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--border);
}

.sc-bar-url {
  font-size: 0.48rem;
  color: var(--text-tertiary);
  margin-left: 0.3rem;
}

.sc-body {
  padding: 0.6rem;
  position: relative;
}

.sc-instruction {
  font-size: 0.55rem;
  font-weight: 500;
  color: var(--text-tertiary);
  margin-bottom: 0.15rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out);
}

.step-scene-b.active .sc-instruction {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.5s;
}

.sc-req-name {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out);
}

.step-scene-b.active .sc-req-name {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.6s;
}

.sc-dropzone {
  border: 1.5px dashed var(--border);
  border-radius: 4px;
  padding: 0.45rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  opacity: 0;
  transition: opacity 0.3s var(--ease-in-out);
}

.step-scene-b.active .sc-dropzone {
  opacity: 1;
  transition-delay: 0.7s;
}

.sc-doc {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.55rem;
  font-weight: 500;
  color: var(--text-secondary);
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out);
}

.step-scene-b.active .sc-doc {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 1s;
}

.sc-doc-icon {
  width: 14px;
  height: 14px;
  color: var(--indigo-600);
  flex-shrink: 0;
}

.sc-confirm {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.4rem;
  font-size: 0.55rem;
  font-weight: 600;
  color: var(--green);
  opacity: 0;
  transition: opacity 0.3s var(--ease-in-out);
}

.step-scene-b.active-2 .sc-confirm {
  opacity: 1;
}

.sc-confirm-icon {
  width: 10px;
  height: 10px;
}


/* ── Step 3 Scene A — Verification dots ──────────── */

.sv-card {
  width: 100%;
  max-width: 230px;
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.65rem;
  box-shadow: var(--shadow-xs);
}

.sv-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.4rem;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  margin-bottom: 0.2rem;
}

.sv-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  flex-shrink: 0;
  background: var(--surface);
  transition: border-color 0.25s var(--ease-in-out), background-color 0.25s var(--ease-in-out);
}

@keyframes dotPulse {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.45); }
  100% { transform: scale(1); }
}

.step-scene-a.active .sv-dot-1 {
  border-color: var(--green);
  background: var(--green);
  animation: dotPulse 0.35s ease-out 0.4s both;
  transition-delay: 0.4s;
}

.step-scene-a.active .sv-dot-2 {
  border-color: var(--green);
  background: var(--green);
  animation: dotPulse 0.35s ease-out 0.7s both;
  transition-delay: 0.7s;
}

.step-scene-a.active .sv-dot-3 {
  border-color: var(--amber);
  background: var(--amber);
  animation: dotPulse 0.35s ease-out 1s both;
  transition-delay: 1s;
}

.step-scene-a.active .sv-dot-4 {
  border-color: var(--green);
  background: var(--green);
  animation: dotPulse 0.35s ease-out 1.3s both;
  transition-delay: 1.3s;
}

.sv-name {
  flex: 1;
  font-size: 0.6rem;
  font-weight: 450;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sv-footer {
  padding-top: 0.3rem;
  margin-top: 0.1rem;
  border-top: 1px solid var(--border-light);
  opacity: 0;
  transition: opacity 0.3s var(--ease-in-out);
}

.step-scene-a.active .sv-footer {
  opacity: 1;
  transition-delay: 1.55s;
}

.sv-count {
  font-size: 0.55rem;
  font-weight: 500;
  color: var(--text-tertiary);
}


/* ── Step 3 Scene B — Flagged alert ──────────────── */

.sv-alert {
  width: 100%;
  max-width: 230px;
  background: var(--amber-subtle);
  border: 1px solid var(--amber);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.7rem;
  box-shadow: var(--shadow-xs);
}

.sv-alert-badge {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin-bottom: 0.5rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out);
}

.step-scene-b.active .sv-alert-badge {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.15s;
}

.sv-alert-icon {
  width: 14px;
  height: 14px;
  color: var(--amber);
}

.sv-alert-badge span {
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--amber);
}

.sv-alert-name {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out);
}

.step-scene-b.active .sv-alert-name {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.35s;
}

.sv-alert-detail {
  font-size: 0.55rem;
  color: var(--text-secondary);
  line-height: 1.5;
  padding: 0.35rem 0.5rem;
  background: rgba(255,255,255,0.6);
  border-radius: 4px;
  border: 1px solid var(--border-light);
  margin-bottom: 0.5rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s var(--ease-in-out), transform 0.3s var(--ease-in-out);
}

.step-scene-b.active .sv-alert-detail {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.55s;
}

.sv-alert-action {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.55rem;
  font-weight: 600;
  color: var(--green);
  opacity: 0;
  transition: opacity 0.3s var(--ease-in-out);
}

.step-scene-b.active-2 .sv-alert-action {
  opacity: 1;
}

.sv-alert-check {
  width: 10px;
  height: 10px;
}

/* ── Dossier Section ────────────────────────────────── */

.dossier-section {
  background: var(--surface-subtle);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.dossier-section h2 {
  margin-bottom: 0.5rem;
}

.dossier-intro {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 100%;
  margin-bottom: 3rem;
  line-height: 1.6;
}

/* Dossier grid — 2 columns on desktop, breaking the 3-3-3 pattern */
.dossier-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.dossier-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition:
    box-shadow var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-in-out);
}

.dossier-item:hover {
  box-shadow: var(--shadow-sm);
}

.dossier-item.open {
  border-color: var(--indigo-200);
}

/* Accordion header */
.dossier-item-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 1.15rem 1.25rem;
  cursor: pointer;
  text-align: left;
  background: none;
  border: none;
  transition: background var(--duration-fast) var(--ease-in-out);
}

.dossier-item-header:hover {
  background: var(--surface-subtle);
}

.dossier-item-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--indigo-50);
  border-radius: var(--radius-sm);
  color: var(--indigo-600);
  flex-shrink: 0;
}

.dossier-item-icon svg {
  width: 24px;
  height: 24px;
}

.dossier-item-title {
  flex: 1;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.dossier-item-chevron {
  width: 16px;
  height: 16px;
  color: var(--text-tertiary);
  flex-shrink: 0;
  transition: transform var(--duration-base) var(--ease-out);
}

.dossier-item.open .dossier-item-chevron {
  transform: rotate(180deg);
}

/* Accordion body */
.dossier-item-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-out);
}

.dossier-item.open .dossier-item-body {
  max-height: 120px;
}

.dossier-item-body p {
  padding: 0 1.25rem 1.25rem calc(48px + 0.75rem + 1.25rem);
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text-secondary);
}


/* ── Use Cases Section ──────────────────────────────── */

.usecases-section {
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  background: var(--surface-subtle);
}

.usecases-section h2 {
  margin-bottom: 3.5rem;
}

.usecase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 2.5rem 0;
  border-top: 1px solid var(--border-light);
}

.usecase-row:first-of-type {
  border-top: none;
}

.usecase-row-reverse {
  direction: rtl;
}

.usecase-row-reverse > * {
  direction: ltr;
}

.usecase-number {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--indigo-100);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.usecase-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.usecase-content p {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.usecase-accent {
  display: flex;
  align-items: center;
  justify-content: center;
}

.usecase-diagram-img {
  width: 100%;
  max-width: 320px;
  height: auto;
  border-radius: var(--radius-md);
}


/* ── Why This Is Different Section ─────────────────── */

.unique-section h2 {
  margin-bottom: 3rem;
  max-width: 640px;
}

.unique-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.unique-point h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.unique-point p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.unique-point-divider {
  width: 32px;
  height: 3px;
  background: var(--indigo-200);
  border-radius: 2px;
  margin-bottom: 1.25rem;
}


/* ── CTA / Contact Section ─────────────────────────── */

.cta-section {
  background: var(--surface-subtle);
  border-top: 1px solid var(--border-light);
}

.cta-section .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: start;
}

.cta-copy h2 {
  margin-bottom: 0.75rem;
}

.cta-copy p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.cta-copy .section-label {
  color: var(--indigo-600);
}

/* Contact form */
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.contact-field {
  margin-bottom: 1rem;
}

.contact-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.contact-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
}

.contact-required {
  color: var(--indigo-400);
}

.contact-input {
  width: 100%;
  padding: 0.6rem 0.8rem;
  font-size: 0.88rem;
  font-family: var(--font);
  color: var(--text-primary);
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition:
    border-color var(--duration-fast) var(--ease-in-out),
    background var(--duration-fast) var(--ease-in-out),
    box-shadow var(--duration-fast) var(--ease-in-out);
}

.contact-input:focus {
  border-color: var(--indigo-400);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.08);
  outline: none;
}

.contact-input::placeholder {
  color: var(--text-tertiary);
}

.contact-textarea {
  resize: vertical;
  min-height: 80px;
}

.contact-submit {
  width: 100%;
  margin-top: 0.25rem;
}

.contact-error {
  display: none;
  font-size: 0.75rem;
  color: var(--red);
  margin-top: 0.25rem;
}

.contact-field.invalid .contact-error {
  display: block;
}

.contact-field.invalid .contact-input {
  border-color: var(--red);
}

.contact-confirm {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--green);
  animation: widgetStepIn 0.3s var(--ease-out) forwards;
}


/* ── Footer ─────────────────────────────────────────── */

.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  height: 1.5rem;
  width: auto;
}

.footer-text {
  font-size: 0.8rem;
  color: var(--text-tertiary);
}


/* ── Scroll Reveal ──────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.6s var(--ease-out),
    transform 0.6s var(--ease-out);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal-stagger > .reveal {
  transition-delay: calc(var(--reveal-index, 0) * 80ms);
}


/* ── Reduced Motion ─────────────────────────────────── */

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

  .reveal {
    opacity: 1;
    transform: none;
  }

  .scroll-word-inner {
    transition: none;
  }

  .widget-requirement-row {
    opacity: 1;
    transform: none;
  }

  .step-anim {
    opacity: 1;
    height: auto;
  }

  .step-anim,
  .step-anim * {
    animation: none !important;
    transition: none !important;
  }

  .step-scene *,
  .sv-footer,
  .sa-footer {
    opacity: 1;
    transform: none;
  }
}


/* ── Responsive ─────────────────────────────────────── */

/* Tablet */
@media (max-width: 1023px) {
  section {
    padding: 4.5rem 0;
  }

  .hero {
    padding: 3.5rem 0;
    min-height: auto;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-copy {
    max-width: 100%;
  }

  .motto {
    font-size: 2.75rem;
  }

  h2 {
    font-size: 2rem;
  }

  .widget-inner {
    min-height: 380px;
  }

  .usecase-diagram-img {
    max-width: 240px;
  }
}

/* Mobile */
@media (max-width: 767px) {
  :root {
    --container-pad: 1.25rem;
  }

  section {
    padding: 3.5rem 0;
  }

  .hero {
    padding: 2.5rem 0;
  }

  .motto {
    font-size: 2.25rem;
  }

  .tagline {
    font-size: 0.78rem;
    margin-bottom: 1.5rem;
  }

  .descriptor,
  .scroll-line {
    font-size: 1.05rem;
  }

  .scroll-word {
    min-width: 18em;
  }

  h2 {
    font-size: 1.75rem;
  }

  /* Nav */
  .nav-logo {
    height: 3.5rem;
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  /* Widget */
  .widget-inner {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .widget-input {
    border-right: none;
    border-bottom: 1px solid var(--border-light);
  }

  .widget-dossier {
    min-height: 280px;
  }

  /* Cards */
  .problem-cards,
  .dossier-grid {
    grid-template-columns: 1fr;
  }

  .unique-points {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .usecase-row,
  .usecase-row-reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .usecase-accent {
    display: none;
  }

  /* Steps */
  .steps {
    flex-direction: column;
    gap: 0;
  }

  .step-arrow {
    width: 100%;
    height: 2.5rem;
    transform: rotate(90deg);
  }

  /* CTA / Contact */
  .cta-section .container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-field-row {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer .container {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}