:root {
  color-scheme: dark;
  --bg: #050607;
  --panel: #101214;
  --panel-strong: #15191d;
  --text: #f7f7f4;
  --muted: #b8b7b1;
  --line: rgba(255, 255, 255, 0.14);
  --red: #d62222;
  --red-dark: #8f1616;
  --blue: #35a7e8;
  --blue-dark: #1f79b5;
  --gold: #d8ad5b;
  --green: #55b883;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(100% - 32px, var(--max));
  min-height: 76px;
  margin: 0 auto;
  padding: 12px 0;
  transition:
    transform 240ms ease,
    opacity 240ms ease;
  will-change: transform, opacity;
}

.site-header.is-hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-110%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
}

.brand img {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.36);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(5, 6, 7, 0.76);
  backdrop-filter: blur(14px);
}

.nav-links a {
  border-radius: 6px;
  padding: 9px 12px;
  color: var(--muted);
  font-size: 0.93rem;
  font-weight: 750;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  align-items: end;
  gap: 44px;
  min-height: 92svh;
  padding: 132px max(22px, calc((100vw - var(--max)) / 2)) 54px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(5, 6, 7, 0.55), rgba(5, 6, 7, 0.86)),
    linear-gradient(145deg, rgba(214, 34, 34, 0.16), transparent 36%),
    #070808;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 94px),
    linear-gradient(rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 72px);
  mask-image: linear-gradient(90deg, transparent, black 16%, black 78%, transparent);
  opacity: 0.62;
}

.hero-bg {
  position: absolute;
  inset: auto -8vw -22vh 32vw;
  height: 60vh;
  transform: rotate(-12deg);
  opacity: 0.82;
}

.track-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 80px;
  border: 2px solid rgba(214, 34, 34, 0.38);
  border-left: 0;
  border-right: 0;
}

.line-one {
  top: 0;
}

.line-two {
  top: 132px;
  border-color: rgba(255, 255, 255, 0.2);
}

.line-three {
  top: 264px;
  border-color: rgba(53, 167, 232, 0.28);
}

.hero-content,
.hero-panel {
  position: relative;
  z-index: 1;
}

.hero-logo {
  width: clamp(104px, 12vw, 160px);
  margin-bottom: 28px;
  border-radius: 50%;
  box-shadow: 0 22px 72px rgba(214, 34, 34, 0.26);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--red);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.eyebrow.blue {
  color: var(--blue);
}

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

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(4.1rem, 11vw, 8.8rem);
  line-height: 0.86;
  letter-spacing: 0;
  text-transform: uppercase;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 0.98;
  letter-spacing: 0;
  text-transform: uppercase;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.24rem;
  line-height: 1.12;
}

.hero-copy {
  max-width: 680px;
  margin-bottom: 30px;
  color: #e6e3dc;
  font-size: clamp(1.05rem, 2vw, 1.32rem);
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 12px 18px;
  font-weight: 900;
  text-transform: uppercase;
}

.button-primary {
  background: var(--red);
  color: white;
  box-shadow: 0 18px 44px rgba(214, 34, 34, 0.26);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #f03030;
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.1);
}

.hero-panel {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

.hero-panel div {
  min-height: 112px;
  padding: 22px;
  background: rgba(14, 16, 18, 0.9);
}

.hero-panel strong,
.audience-item strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1rem;
  text-transform: uppercase;
}

.hero-panel span,
.audience-item span,
.feature-card p,
.section-heading p,
.run-copy p,
.run-copy li,
.cta-section p {
  color: var(--muted);
}

.section {
  padding: 92px max(22px, calc((100vw - var(--max)) / 2));
}

.training-section {
  background: #0a0b0c;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading.compact {
  max-width: 860px;
}

.section-heading p {
  font-size: 1.08rem;
}

.feature-grid,
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  min-height: 260px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
  background:
    linear-gradient(180deg, rgba(214, 34, 34, 0.08), transparent 58%),
    var(--panel);
}

.feature-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 46px;
  border: 1px solid rgba(214, 34, 34, 0.42);
  border-radius: 50%;
  color: var(--red);
  font-size: 0.82rem;
  font-weight: 900;
}

.run-section {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  align-items: center;
  gap: 56px;
  background:
    linear-gradient(135deg, rgba(53, 167, 232, 0.14), transparent 42%),
    #07090a;
}

.run-visual {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid rgba(53, 167, 232, 0.28);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(53, 167, 232, 0.13) 0 2px, transparent 2px 68px),
    linear-gradient(rgba(255, 255, 255, 0.07) 0 1px, transparent 1px 56px),
    #081015;
}

.run-visual img {
  position: absolute;
  left: 50%;
  top: 48%;
  width: min(72%, 380px);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  filter: drop-shadow(0 28px 64px rgba(53, 167, 232, 0.26));
}

.pace-board {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.pace-board span {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 12px 8px;
  background: rgba(5, 6, 7, 0.78);
  color: #dff4ff;
  font-size: 0.86rem;
  font-weight: 900;
  text-align: center;
  text-transform: uppercase;
}

.run-copy {
  max-width: 650px;
}

.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

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

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 14px;
  height: 2px;
  background: var(--blue);
}

.run-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 28px;
  border-bottom: 2px solid var(--blue);
  color: #e7f7ff;
  font-weight: 900;
  text-transform: uppercase;
}

.run-link:hover,
.run-link:focus-visible {
  color: var(--blue);
}

.proof-section {
  background: #0d0e10;
}

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

.audience-item {
  min-height: 190px;
  border-top: 3px solid var(--red);
  padding: 22px 0 0;
}

.audience-item:nth-child(2) {
  border-color: var(--gold);
}

.audience-item:nth-child(3) {
  border-color: var(--blue);
}

.audience-item:nth-child(4) {
  border-color: var(--green);
}

.cta-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  padding: 70px max(22px, calc((100vw - var(--max)) / 2));
  background: var(--red-dark);
}

.cta-section div:first-child {
  max-width: 760px;
}

.cta-section .eyebrow,
.cta-section p {
  color: rgba(255, 255, 255, 0.82);
}

.cta-section h2 {
  margin-bottom: 10px;
}

.cta-section .button-primary {
  background: #fff;
  color: #151515;
  box-shadow: none;
}

.cta-section .button-secondary {
  border-color: rgba(255, 255, 255, 0.42);
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
  }

  .nav-links {
    display: none;
  }

  .hero,
  .run-section,
  .cta-section {
    grid-template-columns: 1fr;
  }

  .hero {
    align-items: start;
    min-height: auto;
    padding-top: 116px;
  }

  .hero-panel {
    width: 100%;
  }

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

  .run-section {
    gap: 34px;
  }

  .cta-section {
    display: grid;
  }
}

@media (max-width: 620px) {
  .brand span {
    max-width: 150px;
    line-height: 1.05;
  }

  h1 {
    font-size: clamp(3.2rem, 22vw, 5.2rem);
  }

  h2 {
    font-size: clamp(1.9rem, 12vw, 3rem);
  }

  .hero {
    padding-bottom: 34px;
  }

  .hero-actions,
  .cta-actions {
    width: 100%;
  }

  .button {
    width: 100%;
  }

  .section {
    padding-top: 66px;
    padding-bottom: 66px;
  }

  .feature-grid,
  .audience-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: 220px;
  }

  .run-visual {
    min-height: 360px;
  }

  .pace-board {
    grid-template-columns: 1fr;
  }
}