/* ————————————————————————————————————————
   TENX SCIENCE — dark glass, gradient beams
   ———————————————————————————————————————— */

:root {
  --bg: #0A0B10;
  --surface: #12141CBB;
  --surface-solid: #12141C;
  --line: #23273580;
  --line-solid: #232735;
  --text: #EEF0F6;
  --muted: #9AA1B4;
  --violet: #7C6CFF;
  --cyan: #4DD8E6;
  --display: "Manrope", system-ui, sans-serif;
  --body: "Inter", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --gutter: clamp(16px, 5vw, 72px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.beams {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(46% 34% at 76% -6%, rgba(124, 108, 255, 0.22), transparent 65%),
    radial-gradient(38% 30% at 16% 4%, rgba(77, 216, 230, 0.13), transparent 65%),
    radial-gradient(50% 36% at 50% 108%, rgba(124, 108, 255, 0.10), transparent 70%);
}

main, .site-header, .site-footer { position: relative; z-index: 1; }

::selection { background: var(--violet); color: #fff; }

a { color: var(--cyan); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

.mono { font-family: var(--mono); }

/* header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px var(--gutter);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-solid);
}

.wordmark {
  font-family: var(--display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}

.wordmark span {
  color: transparent;
  background: linear-gradient(95deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.5vw, 26px);
  font-size: 13.5px;
  font-weight: 500;
}

.site-header nav a {
  text-decoration: none;
  color: var(--muted);
  transition: color 0.2s;
}

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

.nav-cta {
  color: #fff !important;
  background: linear-gradient(95deg, var(--violet), #5A4AE8);
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 10px;
  transition: transform 0.2s, filter 0.2s;
}

.nav-cta:hover { filter: brightness(1.12); transform: translateY(-1px); }

/* hero */

.hero {
  padding: clamp(84px, 14vh, 156px) var(--gutter) clamp(70px, 11vh, 120px);
}

.kicker {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 22px;
}

.hero h1 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(46px, 8.8vw, 108px);
  line-height: 1.0;
  letter-spacing: -0.035em;
  max-width: 15ch;
}

.hero h1 em {
  font-style: normal;
  color: transparent;
  background: linear-gradient(95deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
}

.lede {
  max-width: 60ch;
  margin-top: 28px;
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--muted);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 36px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 15px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--line-solid);
  background: var(--surface);
  border-radius: 12px;
  padding: 14px 24px;
  transition: border-color 0.2s, transform 0.15s;
}

.hero-cta:hover { border-color: var(--violet); transform: translateY(-2px); }

/* sections */

.section {
  padding: clamp(60px, 9vh, 110px) var(--gutter);
  border-top: 1px solid var(--line-solid);
}

.section-head { max-width: 820px; margin-bottom: clamp(30px, 4vh, 46px); }

.section-head h2 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(30px, 5vw, 52px);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 12px;
}

.section-head p { color: var(--muted); max-width: 60ch; }

/* bento */

.bento {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.cell {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--line-solid);
  border-radius: 18px;
  padding: 24px 22px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform 0.25s, border-color 0.25s, background 0.25s;
}

.cell:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--violet) 55%, var(--line-solid));
}

.cell.live {
  background:
    radial-gradient(130% 120% at 0% 0%, rgba(77, 216, 230, 0.10), transparent 55%),
    var(--surface);
}

.cell.wide { grid-column: span 2; }

.cell-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line-solid);
  border-radius: 999px;
  padding: 4px 10px;
  margin-bottom: 16px;
}

.cell h3 {
  font-family: var(--display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.cell p { color: var(--muted); font-size: 14.5px; }

.cell-link {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--cyan);
}

/* method tests */

.tests {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.test {
  background: var(--surface);
  border: 1px solid var(--line-solid);
  border-radius: 18px;
  padding: 26px 24px;
}

.test-no {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--violet);
}

.test h3 {
  font-family: var(--display);
  font-weight: 800;
  font-size: 21px;
  letter-spacing: -0.02em;
  margin: 10px 0 8px;
}

.test p { color: var(--muted); font-size: 15px; }

/* apply cards */

.apply {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 16px;
  align-items: stretch;
}

.apply-card {
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(124, 108, 255, 0.20), transparent 60%),
    var(--surface-solid);
  border: 1px solid var(--line-solid);
  border-radius: 22px;
  padding: clamp(30px, 5vw, 48px);
}

.apply-card h2 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(26px, 4vw, 40px);
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: 14px;
}

.apply-card p { color: var(--muted); max-width: 46ch; margin-bottom: 26px; }

.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid color-mix(in srgb, var(--cyan) 45%, transparent);
  border-radius: 999px;
  padding: 5px 12px;
  margin-bottom: 18px;
}

.badge.dim { color: var(--muted); border-color: var(--line-solid); }

.btn-glow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 15.5px;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(95deg, var(--violet), #5A4AE8);
  border-radius: 12px;
  padding: 14px 26px;
  box-shadow: 0 12px 36px rgba(124, 108, 255, 0.35);
  transition: transform 0.15s, filter 0.2s;
}

.btn-glow:hover { filter: brightness(1.1); transform: translateY(-2px); }

.soon-card {
  background: var(--surface-solid);
  border: 1px solid var(--line-solid);
  border-radius: 22px;
  padding: clamp(30px, 5vw, 48px);
}

.soon-card h3 {
  font-family: var(--display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.soon-card p { color: var(--muted); font-size: 15px; }

/* footer */

.site-footer {
  padding: 38px var(--gutter) 52px;
  border-top: 1px solid var(--line-solid);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

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

.footer-links a { text-decoration: none; color: var(--cyan); transition: color 0.2s; }
.footer-links a:hover { color: var(--text); }

.site-footer > p { color: var(--muted); font-size: 13px; max-width: 72ch; }

/* reveal */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .cell:hover, .hero-cta:hover, .nav-cta:hover, .btn-glow:hover { transform: none; }
}

@media (max-width: 900px) {
  .apply { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .site-header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .site-header nav { flex-wrap: wrap; row-gap: 8px; }
  .cell.wide { grid-column: span 1; }
}