/* =========================================================================
   r7labs.io · design system
   ========================================================================= */

:root {
  /* palette */
  --bg: #0a0a0c;
  --bg-2: #111114;
  --surface: #131316;
  --surface-2: #181820;
  --line: #23232a;
  --line-2: #2e2e36;
  --ink: #f5f5f7;
  --ink-2: #c7c7cf;
  --muted: #8b8b93;
  --dim: #5a5a62;

  --accent: #ff4d1a;        /* signal orange */
  --accent-soft: #ff7a47;
  --accent-glow: rgba(255, 77, 26, 0.45);
  --indigo: #6366f1;
  --indigo-soft: #818cf8;
  --indigo-glow: rgba(99, 102, 241, 0.40);

  /* type */
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-serif: "Instrument Serif", "Times New Roman", serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* layout */
  --max: 1240px;
  --gutter: clamp(20px, 4vw, 56px);
  --radius: 14px;
  --radius-lg: 20px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
  min-height: 100dvh;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; }
ul, ol { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4 { margin: 0; letter-spacing: -0.02em; font-family: var(--font-display); font-weight: 600; }
p { margin: 0; }

::selection { background: var(--accent); color: var(--bg); }

/* =========================================================================
   Backdrop — aurora + grid + grain
   ========================================================================= */

.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.aurora {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.55;
  will-change: transform;
}
.aurora--a {
  width: 60vw; height: 60vw;
  top: -22vw; left: -10vw;
  background: radial-gradient(closest-side, var(--accent), transparent 70%);
  animation: drift-a 22s ease-in-out infinite alternate;
}
.aurora--b {
  width: 55vw; height: 55vw;
  top: 25vh; right: -15vw;
  background: radial-gradient(closest-side, var(--indigo), transparent 70%);
  opacity: 0.45;
  animation: drift-b 26s ease-in-out infinite alternate;
}
.aurora--c {
  width: 70vw; height: 70vw;
  bottom: -30vw; left: 20vw;
  background: radial-gradient(closest-side, #b21d05, transparent 70%);
  opacity: 0.30;
  animation: drift-c 30s ease-in-out infinite alternate;
}

@keyframes drift-a {
  0%   { transform: translate3d(0,0,0) scale(1); }
  100% { transform: translate3d(6vw, 4vw, 0) scale(1.08); }
}
@keyframes drift-b {
  0%   { transform: translate3d(0,0,0) scale(1); }
  100% { transform: translate3d(-5vw, 3vw, 0) scale(1.12); }
}
@keyframes drift-c {
  0%   { transform: translate3d(0,0,0) scale(1); }
  100% { transform: translate3d(3vw, -4vw, 0) scale(1.06); }
}

.grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 30%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, black 30%, transparent 75%);
}

.grain {
  position: absolute;
  inset: -50%;
  opacity: 0.10;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240' viewBox='0 0 240 240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1   0 0 0 0 1   0 0 0 0 1   0 0 0 0.6 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  pointer-events: none;
}

/* =========================================================================
   Nav
   ========================================================================= */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 20px var(--gutter);
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  background: linear-gradient(to bottom, rgba(10,10,12,0.78), rgba(10,10,12,0.40));
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.mark {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(140deg, var(--accent), #d63307);
  color: var(--bg);
  font-family: var(--font-display);
  font-weight: 700;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.06) inset,
    0 8px 24px -8px var(--accent-glow);
}
.mark__type { font-size: 13px; letter-spacing: -0.02em; line-height: 1; }
.mark__dot {
  position: absolute;
  top: 6px; right: 6px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--bg);
  opacity: 0.65;
}

.nav__wordmark { color: var(--ink); }

.nav__links {
  justify-self: center;
  display: flex;
  gap: 36px;
}
.nav__links a {
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color .2s ease;
}
.nav__links a:hover { color: var(--ink); }
.nav__links a::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  height: 1px; width: 0;
  background: var(--accent);
  transition: width .25s ease;
}
.nav__links a:hover::after { width: 100%; }

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
  transition: all .2s ease;
}
.nav__cta:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.18);
  transform: translateY(-1px);
}

@media (max-width: 760px) {
  .nav__links { display: none; }
  .nav { grid-template-columns: auto 1fr auto; }
}

/* =========================================================================
   Buttons
   ========================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 20px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: all .2s ease;
  white-space: nowrap;
}
.btn--lg { padding: 18px 28px; font-size: 17px; }

.btn--primary {
  background: var(--accent);
  color: var(--bg);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.10) inset,
    0 14px 40px -12px var(--accent-glow);
}
.btn--primary:hover {
  background: var(--accent-soft);
  transform: translateY(-1px);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.14) inset,
    0 18px 50px -10px var(--accent-glow);
}

.btn--ghost {
  color: var(--ink);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.10);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.18);
  transform: translateY(-1px);
}

/* =========================================================================
   Hero
   ========================================================================= */

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(64px, 10vw, 140px) var(--gutter) clamp(56px, 8vw, 120px);
}

.hero__meta { margin-bottom: 28px; }
.ticker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
}
.ticker__pulse {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(0.85); }
}

.mono {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0;
  color: var(--muted);
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(44px, 8.4vw, 124px);
  line-height: 0.96;
  letter-spacing: -0.035em;
  max-width: 16ch;
}
.serif {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.serif em {
  font-style: italic;
  color: var(--accent);
  background: linear-gradient(120deg, var(--accent), var(--accent-soft) 60%, #ffb38a);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__lede {
  margin-top: 28px;
  max-width: 58ch;
  font-size: clamp(16px, 1.4vw, 19px);
  color: var(--ink-2);
  line-height: 1.55;
}

.hero__cta {
  margin-top: 36px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero__stats {
  margin-top: clamp(56px, 8vw, 96px);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat {
  background: rgba(10,10,12,0.55);
  padding: 28px 24px;
  backdrop-filter: blur(8px);
}
.stat__num {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(32px, 4.4vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1;
}
.stat__label { margin-top: 8px; color: var(--muted); }

@media (max-width: 720px) {
  .hero__stats { grid-template-columns: 1fr; }
}

/* =========================================================================
   Marquee
   ========================================================================= */

.marquee {
  position: relative;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  background: rgba(255,255,255,0.015);
  overflow: hidden;
  padding: 22px 0;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}
.marquee__track {
  display: inline-flex;
  align-items: center;
  gap: 34px;
  white-space: nowrap;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(20px, 2.4vw, 32px);
  letter-spacing: -0.02em;
  color: var(--ink-2);
  animation: scroll 40s linear infinite;
  padding-left: 34px;
}
.marquee__track .dot { color: var(--accent); font-size: 10px; line-height: 1; }
@keyframes scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* =========================================================================
   Section base
   ========================================================================= */

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(80px, 12vw, 160px) var(--gutter);
}
.section--alt {
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}
.section--alt .section__head,
.section--alt .process {
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section__head {
  display: grid;
  gap: 18px;
  margin-bottom: clamp(40px, 6vw, 72px);
  max-width: 26ch;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.section__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(32px, 5vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

/* =========================================================================
   Capabilities cards
   ========================================================================= */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.card {
  position: relative;
  padding: 32px 28px 28px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015));
  border: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(255,77,26,0.12), transparent 60%);
  opacity: 0;
  transition: opacity .25s ease;
  pointer-events: none;
}
.card:hover {
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.14);
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
}
.card:hover::before { opacity: 1; }
.card__num {
  color: var(--accent);
  font-size: 12.5px;
  margin-bottom: 24px;
}
.card h3 {
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.card p {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.55;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 22px;
}
.tags li {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.02);
}

/* =========================================================================
   Process
   ========================================================================= */

.process {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.process__step {
  position: relative;
  padding: 36px 24px 40px;
  border-right: 1px solid rgba(255,255,255,0.06);
}
.process__step:last-child { border-right: none; }
.process__step::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 24px; right: 24px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.process__step:hover::before { transform: scaleX(1); }
.process__index {
  color: var(--accent);
  margin-bottom: 28px;
}
.process__step h3 {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.process__step p {
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.55;
}

@media (max-width: 900px) {
  .process { grid-template-columns: 1fr 1fr; }
  .process__step:nth-child(2) { border-right: none; }
  .process__step:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,0.06); }
}
@media (max-width: 540px) {
  .process { grid-template-columns: 1fr; }
  .process__step { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .process__step:last-child { border-bottom: none; }
}

/* =========================================================================
   CTA
   ========================================================================= */

.cta {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(80px, 12vw, 160px) var(--gutter);
}
.cta__inner {
  position: relative;
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,0.08);
  background:
    radial-gradient(80% 100% at 100% 0%, rgba(255,77,26,0.18), transparent 60%),
    radial-gradient(60% 80% at 0% 100%, rgba(99,102,241,0.18), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  padding: clamp(40px, 7vw, 80px);
  overflow: hidden;
}
.cta__inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/><feColorMatrix values='0 0 0 0 1   0 0 0 0 1   0 0 0 0 1   0 0 0 0.4 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity: 0.06;
  pointer-events: none;
  mix-blend-mode: overlay;
}
.cta__title {
  margin-top: 16px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(36px, 5.6vw, 76px);
  line-height: 1.0;
  letter-spacing: -0.035em;
  max-width: 18ch;
}
.cta__lede {
  margin-top: 20px;
  max-width: 56ch;
  color: var(--ink-2);
  font-size: clamp(16px, 1.3vw, 18px);
}
.cta .btn { margin-top: 36px; }

/* =========================================================================
   Footer
   ========================================================================= */

.footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 28px var(--gutter);
}
.footer__row {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer__row--end {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.04);
  color: var(--muted);
}
.footer__links { display: flex; gap: 28px; }
.footer__links a {
  color: var(--ink-2);
  font-size: 14px;
  transition: color .2s ease;
}
.footer__links a:hover { color: var(--ink); }

/* =========================================================================
   Reveal on scroll
   ========================================================================= */

[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .7s ease, transform .7s ease;
}
[data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}