:root {
  --bg: #0b0b0f;
  --bg-elev: #14141a;
  --bg-card: #1b1b24;
  --fg: #f5f5f7;
  --fg-dim: #9b9ba6;
  --border: #2a2a35;

  --neon-blue: #40c4ff;
  --neon-green: #76ff03;
  --neon-yellow: #ffff00;
  --neon-red: #ff1744;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --sp-xs: 4px;
  --sp-sm: 8px;
  --sp-md: 12px;
  --sp-lg: 16px;
  --sp-xl: 24px;
  --sp-xxl: 32px;
  --sp-3xl: 56px;
  --sp-4xl: 96px;

  --font: 'Syne', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --ease: cubic-bezier(0.65, 0, 0.35, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

img {
  display: block;
}

/* ===== animations ===== */

/* scroll reveal: hidden by default, JS flips .visible */
.animate-in {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.7s cubic-bezier(0.65, 0, 0.35, 1),
    transform 0.7s cubic-bezier(0.65, 0, 0.35, 1);
}

.animate-in.animate-scale {
  transform: scale(0.92) translateY(16px);
}

.animate-in.visible {
  opacity: 1;
  transform: none;
}

/* hero fade-in on load, staggered via inline --delay */
@keyframes heroFade {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-fade {
  opacity: 0;
  animation: heroFade 0.7s cubic-bezier(0.65, 0, 0.35, 1) var(--delay, 0ms) forwards;
}

/* ===== layout ===== */

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--sp-xl);
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--sp-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 28px;
  height: 28px;
  color: var(--neon-blue);
  transition: transform 0.4s var(--ease);
}

.brand:hover .brand-mark {
  transform: rotate(-12deg) scale(1.08);
}

.brand-name {
  font-size: 20px;
}

.nav-links {
  display: flex;
  gap: var(--sp-xl);
  font-size: 15px;
  color: var(--fg-dim);
}

.nav-links a {
  position: relative;
  transition: color 0.2s var(--ease);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: var(--neon-blue);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease);
}

.nav-links a:hover {
  color: var(--fg);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

/* ===== hero ===== */

.hero {
  padding: var(--sp-3xl) 0 var(--sp-4xl);
  text-align: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 12px;
  color: var(--fg-dim);
  margin: 0 0 var(--sp-lg);
  font-weight: 600;
}

.hero h1 {
  font-size: clamp(44px, 8vw, 88px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0 0 var(--sp-xl);
}

.lede {
  font-size: clamp(17px, 2.2vw, 21px);
  color: var(--fg-dim);
  max-width: 620px;
  margin: 0 auto var(--sp-xxl);
  line-height: 1.5;
}

.accent-blue { color: var(--neon-blue); }
.accent-green { color: var(--neon-green); }
.accent-yellow { color: var(--neon-yellow); }

.accent-blue-bg { background: var(--neon-blue); color: #000; }
.accent-green-bg { background: var(--neon-green); color: #000; }
.accent-yellow-bg { background: var(--neon-yellow); color: #000; }

.cta-row {
  display: flex;
  gap: var(--sp-md);
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 16px;
  border: 1px solid transparent;
  transition:
    transform 0.25s var(--ease),
    background 0.25s var(--ease),
    color 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.btn:hover {
  transform: translateY(-2px) scale(1.03);
}

.btn:active {
  transform: translateY(1px) scale(0.98);
}

.btn-primary {
  background: var(--neon-green);
  color: #000;
}

.btn-primary:hover {
  background: #8fff33;
}

.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}

.btn-ghost:hover {
  border-color: var(--fg-dim);
}

/* ===== hero preview cards ===== */

.hero-cards {
  margin-top: var(--sp-4xl);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-lg);
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.card {
  background: var(--card-color);
  color: rgba(0, 0, 0, 0.87);
  border-radius: 20px;
  padding: var(--sp-xl);
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 140px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.card:hover {
  transform: translateY(-6px) scale(1.02);
}

.card.card--lifted.visible {
  transform: translateY(-12px);
}

.card.card--lifted.visible:hover {
  transform: translateY(-18px) scale(1.02);
}

.card--overdue {
  box-shadow: inset 0 0 0 3px var(--neon-red);
}

.card-title {
  font-weight: 800;
  font-size: 26px;
  letter-spacing: -0.02em;
  line-height: 0.95;
  margin: 0 0 var(--sp-sm);
  color: inherit;
  text-transform: uppercase;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: inherit;
  opacity: 0.87;
}

.card-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* ===== sections ===== */

.section-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 var(--sp-xxl);
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.features,
.how,
.get {
  padding: var(--sp-4xl) 0;
  border-top: 1px solid var(--border);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-xl);
}

.feature {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--sp-xxl);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.feature:hover {
  transform: translateY(-4px);
  border-color: var(--fg-dim);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  margin-bottom: var(--sp-lg);
}

.feature h3 {
  margin: 0 0 var(--sp-sm);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.feature p {
  margin: 0;
  color: var(--fg-dim);
  font-size: 15px;
  line-height: 1.55;
}

/* ===== how ===== */

.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-xl);
}

.steps li {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--sp-xxl);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.steps li:hover {
  transform: translateY(-4px);
  border-color: var(--fg-dim);
}

.step-num {
  display: block;
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: var(--sp-lg);
}

.steps h3 {
  margin: 0 0 var(--sp-sm);
  font-size: 20px;
  font-weight: 700;
}

.steps p {
  margin: 0;
  color: var(--fg-dim);
  font-size: 15px;
}

/* ===== get ===== */

.get {
  text-align: center;
}

.get .lede {
  margin-bottom: var(--sp-xl);
}

.store-badges {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--sp-lg);
  flex-wrap: wrap;
}

.store-badge-link {
  display: inline-flex;
  transition: transform 0.25s var(--ease);
}

.store-badge-link:hover {
  transform: translateY(-2px) scale(1.04);
}

.store-badge-link:active {
  transform: translateY(1px) scale(0.98);
}

.store-badge {
  height: 52px;
  width: auto;
  display: block;
}

/* ===== legal pages ===== */

.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--sp-3xl) 0 var(--sp-4xl);
}

.legal h1 {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 var(--sp-md);
}

.legal h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: var(--sp-xxl) 0 var(--sp-md);
}

.legal p,
.legal li {
  color: var(--fg-dim);
  font-size: 16px;
  line-height: 1.6;
}

.legal p {
  margin: 0 0 var(--sp-md);
}

.legal ul {
  margin: 0 0 var(--sp-md);
  padding-left: var(--sp-xl);
}

.legal li {
  margin-bottom: var(--sp-sm);
}

.legal strong {
  color: var(--fg);
  font-weight: 600;
}

.legal a {
  color: var(--neon-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.2s var(--ease);
}

.legal a:hover {
  opacity: 0.75;
}

.legal-meta {
  color: var(--fg-dim);
  font-size: 13px;
  margin: 0 0 var(--sp-xl);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}

.legal-lede {
  font-size: 18px;
  color: var(--fg);
  margin-bottom: var(--sp-xl);
}

/* ===== footer ===== */

.footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--sp-xxl) var(--sp-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-lg);
  border-top: 1px solid var(--border);
  color: var(--fg-dim);
  font-size: 14px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  font-weight: 700;
  color: var(--fg);
}

.footer-brand .brand-mark {
  width: 20px;
  height: 20px;
}

.footer-links {
  display: flex;
  gap: var(--sp-xl);
  font-size: 14px;
}

.footer-links a {
  color: var(--fg-dim);
  transition: color 0.2s var(--ease);
}

.footer-links a:hover {
  color: var(--fg);
}

/* ===== responsive ===== */

@media (max-width: 820px) {
  .hero-cards,
  .feature-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .card.card--lifted.visible {
    transform: none;
  }

  .nav-links {
    display: none;
  }
}