:root {
  /* Brand (fixed) */
  --indigo-900: #312E81;
  --indigo-600: #4F46E5;
  --indigo-300: #A5B4FC;
  --indigo-100: #E0E7FF;
  --yellow: #FBBF24;

  /* Themed (default = light) */
  --bg: #FEFBF2;
  --surface: #FFFFFF;
  --surface-2: #F7F3E7;
  --ink: #312E81;
  --ink-soft: #6B6896;
  --border: #ECE8DA;
  --accent: #312E81;
  --accent-2: #4F46E5;
  --accent-fg: #FEFBF2;
  --cta-bg: #312E81;
  --cta-fg: #FEFBF2;
  --cta-hover: #4F46E5;

  /* Shared */
  --cream: #FEFBF2;
  --danger: #B91C1C;
  --success: #15803D;
  --radius: 14px;
  --radius-lg: 22px;
  --max: 1120px;
  --pad: clamp(16px, 4vw, 32px);
  --font-stack: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: var(--font-stack);
  --base-size: 16px;
}

/* --- Dark theme --- */
:root[data-theme="dark"] {
  --bg: #0E0E14;
  --surface: #1A1830;
  --surface-2: #221F3F;
  --ink: #F5F3FF;
  --ink-soft: #B4AEDA;
  --border: #2D2A4A;
  --accent: #A5B4FC;
  --accent-2: #C4B5FD;
  --accent-fg: #0E0E14;
  --cta-bg: #FBBF24;
  --cta-fg: #312E81;
  --cta-hover: #FCD34D;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    --bg: #0E0E14;
    --surface: #1A1830;
    --surface-2: #221F3F;
    --ink: #F5F3FF;
    --ink-soft: #B4AEDA;
    --border: #2D2A4A;
    --accent: #A5B4FC;
    --accent-2: #C4B5FD;
    --accent-fg: #0E0E14;
    --cta-bg: #FBBF24;
    --cta-fg: #312E81;
    --cta-hover: #FCD34D;
  }
}

/* --- High contrast --- */
:root[data-contrast="high"] {
  --bg: #FFFFFF;
  --surface: #FFFFFF;
  --surface-2: #FFFFFF;
  --ink: #000000;
  --ink-soft: #000000;
  --border: #000000;
  --accent: #000000;
  --accent-2: #0000CC;
  --accent-fg: #FFFFFF;
  --cta-bg: #000000;
  --cta-fg: #FFFFFF;
  --cta-hover: #0000CC;
  --indigo-100: #FFFF00;
  --yellow: #FFEE00;
}
:root[data-contrast="high"][data-theme="dark"] {
  --bg: #000000;
  --surface: #000000;
  --surface-2: #000000;
  --ink: #FFFFFF;
  --ink-soft: #FFFFFF;
  --border: #FFFFFF;
  --accent: #FFFFFF;
  --accent-2: #FFFF00;
  --accent-fg: #000000;
  --cta-bg: #FFFF00;
  --cta-fg: #000000;
  --cta-hover: #FFFFFF;
}

/* --- Easy-read font (Lexend, scientifically backed for reading proficiency) --- */
/* Loaded on demand via @import — browsers only fetch when the rule becomes active */
:root[data-font="dyslexic"] body,
:root[data-font="dyslexic"] button,
:root[data-font="dyslexic"] input,
:root[data-font="dyslexic"] textarea {
  font-family: 'Lexend', 'Inter', system-ui, sans-serif !important;
  letter-spacing: 0.01em;
  word-spacing: 0.08em;
}
:root[data-font="dyslexic"] {
  --font-body: 'OpenDyslexic', 'Inter', system-ui, sans-serif;
}

/* --- Larger text sizes --- */
:root[data-size="large"] { --base-size: 18px; }
:root[data-size="xlarge"] { --base-size: 21px; }

/* --- Reduced motion --- */
:root[data-motion="reduce"] *,
:root[data-motion="reduce"] *::before,
:root[data-motion="reduce"] *::after {
  animation-duration: 0.001ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.001ms !important;
  scroll-behavior: auto !important;
}
@media (prefers-reduced-motion: reduce) {
  :root:not([data-motion]) *,
  :root:not([data-motion]) *::before,
  :root:not([data-motion]) *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

* { box-sizing: border-box; }

html { font-size: var(--base-size); }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Visible focus for keyboard users — brightly colored, high-contrast */
:focus-visible {
  outline: 3px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Signature touch: in H1 headings, the dot on lowercase i becomes a sparkle. */
.i-sparkle {
  position: relative;
  display: inline-block;
  color: inherit;
  line-height: 1;
}
.i-sparkle::after {
  content: "✦";
  position: absolute;
  color: var(--yellow);
  font-size: 0.45em;
  top: -0.05em;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
  font-weight: 400;
}
:root[data-contrast="high"] .i-sparkle::after { display: none; }
:root[data-contrast="high"] .i-sparkle { }
:root[data-contrast="high"] .i-sparkle::before { content: "i"; position: absolute; left: 0; top: 0; width: 100%; text-align: center; }

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

a { color: var(--indigo-600); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { color: var(--ink); font-weight: 500; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2rem, 5.5vw, 3.5rem); line-height: 1.1; font-weight: 700; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 1em; }
h3 { font-size: 1.125rem; }
p { margin: 0 0 1em; color: var(--ink-soft); }

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

/* -------- Header -------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px var(--pad);
  max-width: var(--max);
  margin: 0 auto;
}
.logo img { height: 36px; width: auto; }
:root[data-theme="dark"] .logo img { filter: brightness(0) invert(1); opacity: 0.95; }

.header-controls {
  display: inline-flex;
  gap: 8px;
  align-items: center;
}
.lang-switch {
  display: inline-flex;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
}
.lang-btn {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--ink-soft);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.lang-btn:hover { color: var(--ink); }
.lang-btn[aria-pressed="true"] {
  background: var(--indigo-900);
  color: var(--cream);
}

/* -------- Hero -------- */
.hero {
  max-width: var(--max);
  margin: 24px auto 64px;
  padding: 0 var(--pad);
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
@media (min-width: 820px) {
  .hero { grid-template-columns: 1.3fr 1fr; gap: 48px; margin-top: 48px; margin-bottom: 96px; }
}
.hero-inner { max-width: 580px; }
.tagline {
  display: inline-block;
  background: var(--indigo-100);
  color: var(--indigo-900);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero-title { color: var(--ink); }
:root[data-theme="dark"] .hero-title { color: #F5F3FF; }
:root[data-theme="dark"] h2 { color: #F5F3FF; }
:root[data-theme="dark"] h3 { color: #E7E4F5; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) .hero-title,
  :root:not([data-theme="light"]):not([data-theme="dark"]) h2 { color: #F5F3FF; }
  :root:not([data-theme="light"]):not([data-theme="dark"]) h3 { color: #E7E4F5; }
}
.hero-sub { font-size: 1.125rem; max-width: 540px; }
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-visual img {
  width: min(100%, 280px);
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* -------- Signup form -------- */
.signup {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 10px;
  max-width: 480px;
}
.signup input[type="email"] {
  flex: 1 1 220px;
  min-width: 0;
  padding: 14px 16px;
  font: inherit;
  font-size: 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.signup input[type="email"]:focus {
  outline: none;
  border-color: var(--indigo-600);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
}
.signup button {
  padding: 14px 22px;
  font: inherit;
  font-size: 15px;
  font-weight: 500;
  background: var(--indigo-900);
  color: var(--cream);
  border: 0;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
  white-space: nowrap;
}
.signup button:hover { background: var(--indigo-600); }
.signup button:active { transform: scale(0.98); }
.signup button[disabled] { opacity: 0.6; cursor: wait; }

.signup.big input[type="email"] { padding: 16px 20px; font-size: 17px; }
.signup.big button { padding: 16px 28px; font-size: 16px; }

.hint { font-size: 13px; color: var(--ink-soft); max-width: 480px; }

.form-msg { font-size: 14px; margin-top: 12px; min-height: 1.5em; }
.form-msg.success { color: var(--success); }
.form-msg.error { color: var(--danger); }

/* -------- Grid of cards -------- */
.features, .how, .whom {
  max-width: var(--max);
  margin: 0 auto 72px;
  padding: 0 var(--pad);
}
.grid-3 {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); gap: 24px; }
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  color: var(--ink);
}
.card h3 { color: var(--ink); }
.card p { color: var(--ink-soft); }
.card .icon { font-size: 32px; margin-bottom: 14px; }
.card p { margin: 0; }

/* -------- Steps -------- */
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
  counter-reset: step;
}
@media (min-width: 720px) {
  .steps { grid-template-columns: repeat(3, 1fr); gap: 24px; }
}
.steps li {
  background: var(--indigo-100);
  color: var(--indigo-900);
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  position: relative;
}
.steps li h3 { color: var(--indigo-900); }
.steps li p { color: var(--indigo-900); opacity: 0.78; margin: 0; }
:root[data-theme="dark"] .steps li,
:root[data-theme="dark"] .steps li h3,
:root[data-theme="dark"] .steps li p {
  background: var(--surface-2);
  color: var(--ink);
}
:root[data-theme="dark"] .steps li p { opacity: 0.85; }

/* -------- Waitlist bottom section -------- */
.waitlist {
  background: var(--indigo-900);
  color: var(--cream);
  padding: 72px var(--pad);
  margin: 0;
}
.waitlist-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.waitlist h2 { color: var(--cream); }
.waitlist p { color: var(--indigo-300); }
.waitlist .signup {
  margin: 32px auto 0;
  max-width: 460px;
  justify-content: center;
}
.waitlist .signup input[type="email"] {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--cream);
}
.waitlist .signup input[type="email"]::placeholder { color: rgba(254, 251, 242, 0.5); }
.waitlist .signup input[type="email"]:focus {
  border-color: var(--yellow);
  box-shadow: 0 0 0 4px rgba(251, 191, 36, 0.2);
  background: rgba(255, 255, 255, 0.12);
}
.waitlist .signup button {
  background: var(--yellow);
  color: var(--indigo-900);
}
.waitlist .signup button:hover { background: #F59E0B; }
.waitlist .form-msg { text-align: center; color: var(--indigo-300); }
.waitlist .form-msg.success { color: var(--yellow); }
.waitlist .form-msg.error { color: #FCA5A5; }

/* -------- Footer -------- */
.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px var(--pad);
  text-align: center;
  font-size: 13px;
}
.site-footer img { margin: 0 auto 12px; }
.site-footer p { margin: 2px 0; color: var(--ink-soft); }

/* -------- Accessibility FAB + Panel -------- */
.a11y-fab {
  position: fixed;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-fg);
  border: 2px solid var(--accent-fg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(49, 46, 129, 0.25);
  cursor: pointer;
  z-index: 90;
  transition: transform 0.15s, background 0.15s;
}
.a11y-fab:hover { transform: scale(1.05); background: var(--accent-2); }
.a11y-fab:active { transform: scale(0.95); }
.a11y-fab svg { width: 28px; height: 28px; }
.a11y-fab i { font-size: 28px; line-height: 1; }

.a11y-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(14, 14, 20, 0.55);
  z-index: 95;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.a11y-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.a11y-panel {
  position: fixed;
  right: max(16px, env(safe-area-inset-right));
  bottom: 84px;
  width: min(380px, calc(100vw - 32px));
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 20px 60px rgba(14, 14, 20, 0.3);
  z-index: 100;
  transform: translateY(16px) scale(0.98);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.2s, opacity 0.2s;
}
.a11y-panel.open {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: auto;
}
.a11y-panel h2 {
  font-size: 1.125rem;
  margin: 0 0 4px;
  color: var(--ink);
}
.a11y-panel .panel-sub {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0 0 20px;
}
.a11y-panel section { margin-bottom: 18px; }
.a11y-panel section:last-of-type { margin-bottom: 8px; }
.a11y-panel .section-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.a11y-panel .opts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
  gap: 6px;
}
.a11y-panel .opt {
  appearance: none;
  background: var(--surface-2);
  color: var(--ink);
  border: 2px solid transparent;
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  min-height: 44px;
  transition: background 0.1s, border-color 0.1s;
}
.a11y-panel .opt:hover { background: var(--border); }
.a11y-panel .opt[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}
.a11y-panel .hint {
  font-size: 12px;
  color: var(--ink-soft);
  margin: 6px 0 0;
}
.a11y-panel .reset {
  width: 100%;
  margin-top: 8px;
  padding: 10px;
  background: transparent;
  color: var(--ink-soft);
  border: 1px dashed var(--border);
  border-radius: 10px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.a11y-panel .reset:hover { color: var(--ink); border-color: var(--ink-soft); }
.a11y-panel .close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: transparent;
  border: 0;
  color: var(--ink-soft);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.a11y-panel .close:hover { background: var(--surface-2); color: var(--ink); }

@media (max-width: 480px) {
  .a11y-panel {
    right: 8px;
    left: 8px;
    width: auto;
  }
}