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

:root {
  --bg-main: #050608;
  --bg-elevated: #10131a;
  --bg-elevated-soft: #141824;
  --accent-gold: #f5c76a;
  --accent-teal: #2fd0c8;
  --text-main: #f4f5f7;
  --text-muted: #a5a9b5;
  --border-subtle: rgba(255, 255, 255, 0.06);
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.7);
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #15192b 0, #050608 55%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
}

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

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

.container {
  width: 100%;
  max-width: 1120px;
  padding: 0 1.5rem;
  margin: 0 auto;
}

.section {
  padding: 4.5rem 0;
}

.section-dark {
  background: radial-gradient(circle at top left, #1b2136 0, #050608 60%);
}

.section-highlight {
  position: relative;
  overflow: hidden;
}

.section-highlight::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(47, 208, 200, 0.18), transparent 55%);
  pointer-events: none;
}

.section-intro {
  max-width: 640px;
  color: var(--text-muted);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 6, 8, 0.9), rgba(5, 6, 8, 0.7));
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.5rem;
  gap: 1.25rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 40%;
  border: 1px solid rgba(245, 199, 106, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--accent-gold);
  background: radial-gradient(circle at top, rgba(245, 199, 106, 0.3), rgba(5, 6, 8, 0.9));
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 0.9rem;
  font-weight: 600;
}

.logo-tagline {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.85rem;
}

.nav a {
  position: relative;
  padding-bottom: 0.2rem;
  color: var(--text-muted);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-teal));
  border-radius: 999px;
  transition: width 0.18s ease;
}

.nav a:hover {
  color: var(--text-main);
}

.nav a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: transparent;
  border: none;
  padding: 0.3rem;
  cursor: pointer;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text-main);
  border-radius: 999px;
}

/* Hero */

.hero {
  position: relative;
  padding: 4.5rem 0 4rem;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: -140px -40px auto;
  background:
    radial-gradient(circle at top, rgba(47, 208, 200, 0.18), transparent 55%),
    radial-gradient(circle at right, rgba(245, 199, 106, 0.18), transparent 55%);
  opacity: 0.9;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1.1fr);
  gap: 3.2rem;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.2rem, 4vw, 2.85rem);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 0.98rem;
  color: var(--text-muted);
  max-width: 540px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.6rem 0 1.2rem;
}

.hero-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.45rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.hero-bullets li::before {
  content: "•";
  color: var(--accent-teal);
  margin-right: 0.4rem;
}

.hero-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.hero-globe {
  position: relative;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle at top, #15192b, #050608);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.globe-grid {
  position: absolute;
  inset: 10%;
  border-radius: 50%;
  background-image:
    radial-gradient(circle at 50% 0, rgba(255, 255, 255, 0.06), transparent 60%),
    repeating-radial-gradient(circle, rgba(255, 255, 255, 0.08) 0, rgba(255, 255, 255, 0.08) 1px, transparent 1px, transparent 4px),
    repeating-linear-gradient(transparent 0, transparent 14px, rgba(255, 255, 255, 0.06) 14px, rgba(255, 255, 255, 0.06) 15px),
    repeating-linear-gradient(90deg, transparent 0, transparent 14px, rgba(255, 255, 255, 0.06) 14px, rgba(255, 255, 255, 0.06) 15px);
  opacity: 0.9;
}

.globe-ring {
  position: absolute;
  inset: 46%;
  border-radius: 50%;
  border: 2px solid;
  filter: blur(0.4px);
}

.globe-ring--gold {
  border-color: rgba(245, 199, 106, 0.85);
  transform: rotate(18deg);
}

.globe-ring--teal {
  border-color: rgba(47, 208, 200, 0.9);
  transform: rotate(-24deg);
}

.hero-visual-caption {
  font-size: 0.8rem;
  color: var(--text-muted);
  max-width: 260px;
  text-align: center;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.35rem;
  font-size: 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.12s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-teal));
  color: #050608;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.55);
  font-weight: 600;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7);
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border-color: rgba(245, 199, 106, 0.5);
}

.btn-outline:hover {
  background: rgba(245, 199, 106, 0.06);
  border-color: rgba(245, 199, 106, 0.8);
}

.btn-full {
  width: 100%;
}

/* Layout helpers */

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
  gap: 2.8rem;
  align-items: start;
}

.two-column--reverse {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.05fr);
}

.two-column--reverse > :first-child {
  order: 2;
}

.two-column--reverse > :last-child {
  order: 1;
}

/* About */

.pillars {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pillars-label {
  display: inline-block;
  font-weight: 500;
  color: var(--accent-teal);
  margin-right: 0.35rem;
}

/* Book mock */

.book-mock {
  display: flex;
  justify-content: center;
  align-items: center;
}

.book-cover {
  position: relative;
  width: 220px;
  height: 320px;
  border-radius: 14px;
  background: radial-gradient(circle at top left, rgba(245, 199, 106, 0.15), rgba(5, 6, 8, 1));
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.book-spine {
  position: absolute;
  left: calc(50% - 130px);
  width: 20px;
  height: 320px;
  border-radius: 12px 0 0 12px;
  background: linear-gradient(to right, #171b29, #0a0c12);
  box-shadow: 6px 0 18px rgba(0, 0, 0, 0.8);
}

.book-cover-inner {
  position: relative;
  z-index: 1;
  height: 100%;
  padding: 1.4rem 1.2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.book-badge {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  background: rgba(5, 6, 8, 0.85);
  border: 1px solid rgba(245, 199, 106, 0.7);
  align-self: flex-start;
}

.book-cover h3 {
  font-size: 1.2rem;
  margin: 1.2rem 0 0.4rem;
}

.book-cover p {
  font-size: 0.85rem;
  color: var(--accent-teal);
}

.book-lines {
  margin-top: 1.5rem;
  height: 1px;
  background: linear-gradient(90deg, rgba(245, 199, 106, 0.7), rgba(47, 208, 200, 0.7));
}

.book-author {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Forms */

.inline-form {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.inline-form input[type="email"] {
  flex: 1;
  min-width: 200px;
}

.stacked-form {
  display: grid;
  gap: 0.7rem;
}

input[type="email"] {
  padding: 0.72rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(5, 6, 8, 0.7);
  color: var(--text-main);
  font-size: 0.9rem;
  outline: none;
}

input[type="email"]::placeholder {
  color: #6f7485;
}

input[type="email"]:focus {
  border-color: rgba(47, 208, 200, 0.7);
  box-shadow: 0 0 0 1px rgba(47, 208, 200, 0.35);
}

.form-note {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.form-note.small {
  font-size: 0.75rem;
}

.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;
}

/* Cards */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.4rem;
  margin-top: 2.2rem;
}

.card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.3rem;
  border: 1px solid var(--border-subtle);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
  font-size: 0.9rem;
}

.card h3 {
  font-size: 1rem;
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--text-muted);
}

.card-tag {
  display: inline-flex;
  margin-top: 0.9rem;
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(245, 199, 106, 0.65);
  font-size: 0.75rem;
  color: var(--accent-gold);
}

.card--coming {
  border-style: dashed;
  border-color: rgba(47, 208, 200, 0.7);
}

.card-tag--coming {
  border-color: rgba(47, 208, 200, 0.7);
  color: var(--accent-teal);
}

/* Why different */

.columns-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
  margin-top: 2rem;
}

.column-point {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.2rem;
  border: 1px solid var(--border-subtle);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.5);
}

.column-point h3 {
  margin-top: 0.6rem;
  margin-bottom: 0.4rem;
  font-size: 0.98rem;
}

.column-point p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.icon-circle {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  border: 1px solid;
}

.icon-gold {
  border-color: rgba(245, 199, 106, 0.7);
  color: var(--accent-gold);
}

.icon-teal {
  border-color: rgba(47, 208, 200, 0.7);
  color: var(--accent-teal);
}

/* Lists */

.list-check {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0 0;
  display: grid;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.list-check li::before {
  content: "✓";
  color: var(--accent-teal);
  margin-right: 0.4rem;
}

/* Roadmap */

.roadmap {
  margin-top: 2.1rem;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
  padding-left: 1.4rem;
  display: grid;
  gap: 1.6rem;
}

.roadmap-item {
  position: relative;
  padding-left: 0.4rem;
}

.roadmap-item::before {
  content: "";
  position: absolute;
  left: -1.75rem;
  top: 0.25rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-teal));
  box-shadow: 0 0 0 4px rgba(245, 199, 106, 0.18);
}

.roadmap-year {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-teal);
  margin-bottom: 0.3rem;
}

.roadmap-content h3 {
  margin: 0 0 0.4rem;
  font-size: 0.98rem;
}

.roadmap-content p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 1.6rem 0 2rem;
  background: #050608;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) auto;
  row-gap: 0.75rem;
  column-gap: 1.5rem;
  align-items: center;
}

.footer-brand {
  display: flex;
  flex-direction: column;
}

.footer-logo {
  font-size: 0.95rem;
  font-weight: 600;
}

.footer-tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.8rem;
  font-size: 0.8rem;
}

.footer-links a {
  color: var(--text-muted);
}

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

.footer-copy {
  grid-column: 1 / -1;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Responsive */

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.4rem;
  }

  .hero-visual {
    order: -1;
  }

  .two-column,
  .two-column--reverse {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .header-inner {
    padding-inline: 1rem;
  }

  .nav {
    position: absolute;
    inset-inline: 1.5rem;
    top: 56px;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    background: rgba(5, 6, 8, 0.98);
    padding: 0.85rem 1rem;
    border-radius: 0 0 14px 14px;
    border: 1px solid var(--border-subtle);
    transform-origin: top center;
    transform: scaleY(0.8);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.16s ease, transform 0.16s ease;
  }

  .nav.is-open {
    opacity: 1;
    transform: scaleY(1);
    pointer-events: auto;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding-top: 3.4rem;
  }

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

  .inline-form {
    flex-direction: column;
  }

  .hero-globe {
    width: 220px;
    height: 220px;
  }

  .roadmap {
    border-left: none;
    padding-left: 0;
  }

  .roadmap-item::before {
    left: 0;
    top: -0.25rem;
  }

  .roadmap-item {
    padding-left: 0;
    padding-top: 0.7rem;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }
}