:root {
  --bg: #0a1020;
  --bg-soft: #101935;
  --panel: rgba(17, 25, 50, 0.82);
  --panel-strong: #162346;
  --line: rgba(163, 184, 255, 0.16);
  --text: #ecf1ff;
  --muted: #a9b5d6;
  --accent: #8b7cff;
  --accent-strong: #6d5cff;
  --accent-soft: rgba(139, 124, 255, 0.16);
  --mint: #68e4c8;
  --danger-soft: rgba(255, 125, 125, 0.12);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --radius-sm: 16px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(104, 228, 200, 0.14), transparent 34%),
    radial-gradient(circle at top right, rgba(139, 124, 255, 0.24), transparent 36%),
    linear-gradient(180deg, #09101f 0%, #0c1327 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent 90%);
  pointer-events: none;
}

body:has(.modal[open]) {
  overflow: hidden;
}

.page-shell {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  padding: 24px 0 64px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 8px 0 24px;
}

.brand {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.header-link,
.button,
summary {
  -webkit-tap-highlight-color: transparent;
}

.header-link {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
}

.hero,
.section,
.cta-band {
  position: relative;
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
  padding: 36px 0 52px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--mint);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 700;
}

h1,
h2,
h3,
p,
ul {
  margin-top: 0;
}

h1 {
  font-size: clamp(2.6rem, 5vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  max-width: 12ch;
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(1.9rem, 3.4vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

p,
li,
summary,
label span,
.modal-text {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.hero-text {
  max-width: 62ch;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0;
}

.button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover,
.button:focus-visible,
.header-link:hover,
.header-link:focus-visible,
summary:hover,
summary:focus-visible {
  outline: none;
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent), var(--mint));
  color: #07101e;
  box-shadow: 0 18px 40px rgba(104, 228, 200, 0.16);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border: 1px solid var(--line);
}

.button-large {
  min-width: 184px;
}

.button-full {
  width: 100%;
}

.proof-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.proof-list li {
  position: relative;
  padding-left: 28px;
}

.proof-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--mint), var(--accent));
  box-shadow: 0 0 0 6px rgba(104, 228, 200, 0.08);
}

.hero-panel {
  background: linear-gradient(180deg, rgba(17, 25, 50, 0.96), rgba(10, 15, 30, 0.92));
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.panel-card,
.mini-card,
.info-card,
.contrast-card,
.step-card,
.metric-card,
.modal-card {
  backdrop-filter: blur(20px);
}

.panel-top {
  padding: 22px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(139, 124, 255, 0.22), rgba(104, 228, 200, 0.1));
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 16px;
}

.panel-label,
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.panel-top strong,
.mini-card strong,
.metric-card strong {
  display: block;
  margin: 10px 0 8px;
  font-size: 1.35rem;
  color: var(--text);
}

.panel-grid,
.pain-grid,
.credibility-grid {
  display: grid;
  gap: 16px;
}

.panel-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mini-card {
  min-height: 130px;
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.mini-card.accent {
  background: linear-gradient(180deg, rgba(139, 124, 255, 0.2), rgba(109, 92, 255, 0.08));
}

.section {
  padding: 34px 0;
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
}

.section-heading.narrow {
  max-width: 760px;
}

.pain-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.info-card,
.metric-card,
.step-card,
.contrast-card,
.cta-band,
.modal-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.info-card,
.metric-card,
.step-card,
.contrast-card {
  padding: 24px;
}

.contrast-grid,
.steps,
.faq-list {
  display: grid;
  gap: 18px;
}

.contrast-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.contrast-card ul {
  margin: 0;
  padding-left: 18px;
}

.contrast-old {
  background: linear-gradient(180deg, rgba(255, 125, 125, 0.08), rgba(255, 255, 255, 0.03));
}

.contrast-new {
  background: linear-gradient(180deg, rgba(104, 228, 200, 0.09), rgba(255, 255, 255, 0.03));
}

.steps {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.step-card {
  min-height: 100%;
}

.step-number {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--text);
  margin-bottom: 18px;
}

.credibility-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 30px;
  margin: 34px 0;
  background: linear-gradient(135deg, rgba(139, 124, 255, 0.22), rgba(104, 228, 200, 0.12), rgba(255, 255, 255, 0.04));
}

.cta-band-content {
  max-width: 700px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  padding: 0 20px;
}

summary {
  list-style: none;
  cursor: pointer;
  color: var(--text);
  font-weight: 700;
  padding: 20px 0;
}

summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  padding: 0 0 20px;
  margin: 0;
}

.modal {
  width: min(100% - 24px, 560px);
  border: 0;
  padding: 0;
  background: transparent;
}

.modal::backdrop {
  background: rgba(3, 7, 18, 0.75);
  backdrop-filter: blur(6px);
}

.modal-card {
  position: relative;
  padding: 28px;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 1.6rem;
  cursor: pointer;
}

.waitlist-form {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

label {
  display: grid;
  gap: 8px;
}

label span {
  color: var(--text);
  font-weight: 600;
}

label em {
  color: var(--muted);
  font-style: normal;
  font-weight: 500;
}

input {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  background: rgba(8, 13, 28, 0.92);
  color: var(--text);
  padding: 14px 16px;
  font: inherit;
}

input:focus-visible,
.button:focus-visible,
.modal-close:focus-visible {
  outline: 2px solid rgba(104, 228, 200, 0.9);
  outline-offset: 2px;
}

.landai-waitlist-success,
.landai-waitlist-error {
  border-radius: 16px;
  padding: 12px 14px;
  font-weight: 600;
}

.landai-waitlist-success {
  background: rgba(104, 228, 200, 0.12);
  color: #b6fff0;
}

.landai-waitlist-error {
  background: var(--danger-soft);
  color: #ffd0d0;
}

@media (max-width: 1040px) {
  .hero,
  .contrast-grid,
  .steps,
  .pain-grid,
  .credibility-grid,
  .cta-band {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 24px;
  }

  .cta-band {
    display: grid;
    justify-items: start;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--max));
    padding-top: 16px;
  }

  .site-header {
    padding-bottom: 16px;
  }

  h1 {
    max-width: none;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .panel-grid {
    grid-template-columns: 1fr;
  }

  .info-card,
  .metric-card,
  .step-card,
  .contrast-card,
  .cta-band,
  .modal-card {
    padding: 20px;
    border-radius: 20px;
  }

  .modal-card {
    padding-top: 48px;
  }
}