:root {
  --primary: #5b21b6;
  --primary-bright: #7c3aed;
  --teal: #0d9488;
  --teal-soft: #14b8a6;
  --surface: #f8f5ff;
  --surface-deep: #0f0a1a;
  --ink: #1a1028;
  --ink-muted: #5c4f72;
  --on-dark: #f5f0ff;
  --on-dark-muted: #c4b5e0;
  --error: #dc2626;
  --radius: 14px;
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;
  --max: 68rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--teal);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--primary);
}

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem clamp(1.25rem, 4vw, 2.5rem);
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--on-dark);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
}

.brand-lockup img {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.55rem;
}

.lang-switch {
  display: inline-flex;
  gap: 0.15rem;
  padding: 0.2rem;
  border-radius: 999px;
  background: rgba(15, 10, 26, 0.35);
  backdrop-filter: blur(8px);
}

.lang-switch button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--on-dark-muted);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}

.lang-switch button[aria-pressed="true"] {
  color: var(--surface-deep);
  background: var(--on-dark);
}

.lang-switch button:hover:not([aria-pressed="true"]) {
  color: var(--on-dark);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  padding: clamp(6.5rem, 14vh, 8rem) clamp(1.25rem, 4vw, 2.5rem)
    clamp(2.5rem, 6vh, 4rem);
  color: var(--on-dark);
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 55% at 88% 35%, rgba(124, 58, 237, 0.55), transparent 58%),
    radial-gradient(ellipse 55% 45% at 70% 70%, rgba(13, 148, 136, 0.28), transparent 55%),
    radial-gradient(ellipse 60% 50% at 8% 85%, rgba(91, 33, 182, 0.4), transparent 50%),
    linear-gradient(155deg, #1a0b33 0%, var(--surface-deep) 45%, #071816 100%);
}

.hero-mark {
  position: absolute;
  right: clamp(-4%, 2vw, 6%);
  top: 50%;
  width: min(48vw, 26rem);
  height: auto;
  transform: translateY(-46%);
  border-radius: 1.75rem;
  box-shadow:
    0 0 0 1px rgba(245, 240, 255, 0.08),
    0 28px 80px rgba(91, 33, 182, 0.45),
    0 0 120px rgba(13, 148, 136, 0.18);
  pointer-events: none;
  z-index: 0;
  animation: heroGlow 8s ease-in-out infinite alternate;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
  animation: fadeUp 0.85s ease both;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 12vw, 6.5rem);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.2vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
  max-width: 22ch;
  margin: 0 0 0.85rem;
}

.hero-lead {
  max-width: 38ch;
  color: var(--on-dark-muted);
  margin: 0 0 1.75rem;
  font-size: 1.1rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.85rem;
  padding: 0.65rem 1.15rem;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 650;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease,
    color 0.2s ease;
}

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

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--teal);
  color: #fff;
}

.btn-primary:hover {
  background: var(--teal-soft);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--on-dark);
  border-color: rgba(245, 240, 255, 0.35);
}

.btn-ghost:hover {
  border-color: var(--on-dark);
  color: var(--on-dark);
}

.btn-disabled,
.btn[aria-disabled="true"] {
  opacity: 0.72;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-soon {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
}

.section {
  padding: clamp(3.5rem, 8vw, 5.5rem) clamp(1.25rem, 4vw, 2.5rem);
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2.15rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.65rem;
  color: var(--primary);
}

.section-lead {
  margin: 0 0 2rem;
  max-width: 42ch;
  color: var(--ink-muted);
}

.features {
  background: #fff;
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.feature-list li {
  padding-top: 1rem;
  border-top: 2px solid color-mix(in srgb, var(--primary) 18%, transparent);
}

.feature-list h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 0.4rem;
  color: var(--ink);
}

.feature-list p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.relation {
  background:
    linear-gradient(120deg, rgba(91, 33, 182, 0.08), rgba(13, 148, 136, 0.1)),
    var(--surface);
}

.relation-panel {
  display: grid;
  gap: 1.5rem;
}

.relation-panel p {
  margin: 0;
  max-width: 48ch;
  font-size: 1.12rem;
}

.site-footer {
  background: var(--surface-deep);
  color: var(--on-dark-muted);
  padding: 2.5rem clamp(1.25rem, 4vw, 2.5rem);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  justify-content: space-between;
  align-items: flex-start;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
}

.footer-nav a {
  color: var(--on-dark);
  text-decoration: none;
  font-weight: 600;
}

.footer-nav a:hover {
  color: var(--teal-soft);
}

.footer-meta {
  margin: 0;
  font-size: 0.92rem;
}

.footer-meta a {
  color: var(--teal-soft);
}

/* Legal pages */
.page-legal .site-header {
  position: relative;
  background: var(--surface-deep);
}

.legal-main {
  padding: clamp(2.5rem, 6vw, 4rem) clamp(1.25rem, 4vw, 2.5rem)
    clamp(3rem, 7vw, 5rem);
}

.legal-inner {
  max-width: 46rem;
  margin: 0 auto;
}

.legal-inner h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
  color: var(--primary);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.legal-meta {
  color: var(--ink-muted);
  font-size: 0.95rem;
  margin: 0 0 2rem;
}

.legal-inner h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 2rem 0 0.65rem;
  color: var(--ink);
}

.legal-inner h3 {
  font-size: 1.05rem;
  margin: 1.35rem 0 0.45rem;
  color: var(--primary);
}

.legal-inner p,
.legal-inner li {
  color: var(--ink-muted);
}

.legal-inner ul,
.legal-inner ol {
  padding-left: 1.2rem;
}

.legal-inner li + li {
  margin-top: 0.35rem;
}

.legal-note {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid color-mix(in srgb, var(--primary) 20%, transparent);
  font-size: 0.9rem;
  color: var(--ink-muted);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(1.1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroGlow {
  from {
    transform: translateY(-46%) scale(1) rotate(-1deg);
    filter: saturate(1) brightness(1);
  }
  to {
    transform: translateY(-48%) scale(1.03) rotate(1deg);
    filter: saturate(1.08) brightness(1.06);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero-inner,
  .hero-mark,
  .btn {
    animation: none !important;
    transition: none !important;
  }

  .hero-mark {
    transform: translateY(-46%);
    filter: none;
  }
}

@media (max-width: 640px) {
  .hero-mark {
    right: 50%;
    top: 18%;
    width: min(58vw, 12.5rem);
    transform: translate(50%, 0);
    opacity: 0.9;
  }

  @keyframes heroGlow {
    from {
      transform: translate(50%, 0) scale(1);
      filter: saturate(1) brightness(1);
    }
    to {
      transform: translate(50%, -2%) scale(1.04);
      filter: saturate(1.08) brightness(1.06);
    }
  }

  .hero {
    align-items: end;
    padding-top: clamp(10rem, 28vh, 14rem);
  }

  .cta-row {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }
}