:root {
  color-scheme: dark;
  --ink: #f2f7f8;
  --muted: #9aa8ac;
  --quiet: #849499;
  --cyan: #62d8f4;
  --green: #66e3a4;
  --amber: #efc76a;
  --bg: #080b0d;
  --surface: #0b1114;
  --line: #22343a;
  --sans: "IBM Plex Sans", "Aptos", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --header-height: 78px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.45;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .22;
  background-image:
    linear-gradient(rgba(98, 216, 244, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(98, 216, 244, .08) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(to bottom, black, transparent 58%);
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 clamp(22px, 4vw, 68px);
  border-bottom: 1px solid var(--line);
  background: rgba(8, 11, 13, .97);
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: var(--ink);
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: -.02em;
  text-decoration: none;
}

.logo b {
  font-size: 19px;
}

.logo span {
  color: var(--cyan);
}

.logo small {
  color: var(--quiet);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .14em;
}

.logo:focus-visible,
.login:focus-visible {
  outline: 3px solid white;
  outline-offset: 3px;
}

.login {
  min-width: 150px;
  padding: 15px 22px;
  border: 1px solid var(--cyan);
  background: var(--cyan);
  color: #061014;
  font: 700 13px/1 var(--mono);
  letter-spacing: .09em;
  text-align: center;
  text-decoration: none;
  transition: background-color 160ms ease-out, color 160ms ease-out;
}

.login:hover {
  background: var(--ink);
  border-color: var(--ink);
}

.hero {
  display: grid;
  align-content: center;
  min-height: calc(700px - var(--header-height));
  padding: 90px max(7vw, 28px) 110px;
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  max-width: 1080px;
}

.hero h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(54px, 7.4vw, 96px);
  font-weight: 700;
  line-height: .94;
  letter-spacing: -.04em;
  text-wrap: balance;
}

.hero h1 strong {
  display: block;
  color: var(--cyan);
  font-weight: inherit;
}

.hero p {
  max-width: 790px;
  margin: 40px 0 0;
  color: #c0cace;
  font-size: clamp(19px, 2vw, 27px);
  line-height: 1.45;
  letter-spacing: -.015em;
}

.integrations {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  max-width: 1320px;
  margin: 0 auto;
  padding: 34px max(4vw, 26px);
  border-bottom: 1px solid var(--line);
  color: var(--quiet);
  font: 600 10px/1.4 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.loop {
  position: relative;
  max-width: 1320px;
  margin: 0 auto;
  padding: 80px max(4vw, 26px) 48px;
}

.loop::before {
  content: "";
  position: absolute;
  top: 80px;
  bottom: 110px;
  left: max(4vw, 26px);
  width: 1px;
  background: var(--cyan);
}

.chapter {
  display: grid;
  grid-template-columns: minmax(220px, .7fr) minmax(0, 1.65fr);
  gap: clamp(50px, 8vw, 120px);
  align-items: start;
  min-height: 720px;
  padding: 34px 0 130px 44px;
}

.chapter-copy {
  position: sticky;
  top: calc(var(--header-height) + 36px);
  padding-top: 4px;
}

.chapter-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: -51px;
  color: var(--cyan);
  font: 700 13px/1 var(--mono);
  letter-spacing: .13em;
}

.chapter-label::before {
  content: "";
  width: 13px;
  height: 13px;
  border: 2px solid var(--cyan);
  background: var(--bg);
  transform: rotate(45deg);
}

.chapter h2 {
  margin: 34px 0 16px;
  font-size: clamp(34px, 4vw, 58px);
  line-height: .98;
  letter-spacing: -.035em;
}

.chapter-copy p {
  max-width: 390px;
  margin: 0;
  color: #aab7bb;
  font-size: 18px;
  line-height: 1.55;
}

.product-view {
  overflow: hidden;
  border: 1px solid #2a4149;
  background: var(--surface);
  box-shadow: 0 28px 70px rgba(0, 0, 0, .34);
}

.view-bar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
  color: var(--quiet);
  font: 600 10px/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.view-bar strong {
  color: var(--cyan);
  font-weight: 600;
}

.view-body {
  padding: 28px;
}

.view-title {
  margin: 0;
  font-size: clamp(24px, 2.6vw, 38px);
  line-height: 1.1;
  letter-spacing: -.03em;
}

.view-subtitle {
  margin: 9px 0 28px;
  color: var(--muted);
  font-size: 14px;
}

.plan-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
}

.plan-meta div {
  padding: 18px 14px;
  border-right: 1px solid var(--line);
}

.plan-meta div:last-child {
  border-right: 0;
}

.plan-meta small,
.stat small,
.coach-proof small,
.goal-read small {
  display: block;
  margin-bottom: 7px;
  color: var(--quiet);
  font: 600 9px/1.2 var(--mono);
  letter-spacing: .09em;
  text-transform: uppercase;
}

.plan-meta b {
  font: 600 14px/1.2 var(--mono);
}

.phase-line {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr 1fr .7fr;
  margin: 30px 0 10px;
  border-block: 1px solid var(--line);
}

.phase-line span {
  padding: 14px 10px;
  color: var(--quiet);
  font: 600 10px/1 var(--mono);
  text-transform: uppercase;
}

.phase-line .active {
  color: var(--cyan);
  background: rgba(98, 216, 244, .07);
}

.week-row {
  display: grid;
  grid-template-columns: 72px 1fr 80px 1.1fr;
  align-items: center;
  min-height: 58px;
  border-bottom: 1px solid var(--line);
  font: 500 12px/1.3 var(--mono);
}

.week-row span {
  color: var(--muted);
}

.week-row strong {
  color: var(--ink);
}

.week-summary {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 22px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.week-summary h3 {
  margin: 0;
  font-size: 34px;
  letter-spacing: -.03em;
}

.week-summary p {
  margin: 5px 0 0;
  color: var(--muted);
}

.week-total {
  color: var(--cyan);
  font: 700 28px/1 var(--mono);
  white-space: nowrap;
}

.run-list {
  margin-top: 12px;
}

.run-row {
  display: grid;
  grid-template-columns: 72px 1fr 110px;
  gap: 16px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.run-date {
  color: var(--quiet);
  font: 600 10px/1.3 var(--mono);
}

.run-name strong {
  display: block;
  font-size: 15px;
}

.run-name small {
  color: var(--muted);
}

.run-status {
  color: var(--green);
  font: 600 10px/1 var(--mono);
  text-align: right;
}

.run-status.next {
  color: var(--cyan);
}

.adjustment {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 26px;
  align-items: center;
  margin-top: 28px;
  padding: 22px 0 4px;
  border-top: 1px solid var(--amber);
}

.adjustment small {
  color: var(--amber);
  font: 600 10px/1 var(--mono);
  letter-spacing: .08em;
}

.adjustment strong {
  display: block;
  margin-top: 8px;
}

.illustrative-action {
  padding: 13px 18px;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font: 600 10px/1 var(--mono);
  letter-spacing: .08em;
}

.assessment {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.assessment h3 {
  margin: 0 0 10px;
  font-size: 27px;
  line-height: 1.12;
}

.assessment p {
  margin: 0;
  color: var(--muted);
}

.goal-read {
  padding-left: 26px;
  border-left: 1px solid var(--line);
}

.goal-read b {
  display: block;
  color: var(--cyan);
  font: 700 27px/1 var(--mono);
}

.goal-read span {
  color: var(--muted);
  font-size: 13px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.stat {
  padding: 25px 18px 20px 0;
  border-right: 1px solid var(--line);
}

.stat + .stat {
  padding-left: 18px;
}

.stat:last-child {
  border-right: 0;
}

.stat b {
  display: block;
  margin-bottom: 7px;
  font: 700 24px/1 var(--mono);
}

.stat p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.coach-proof {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 20px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.coach-proof p {
  margin: 0;
  color: #c8d1d4;
  font-size: 14px;
}

.coach-action {
  color: var(--cyan);
  font: 600 10px/1 var(--mono);
  letter-spacing: .08em;
}

.loop-close {
  margin: -50px 0 90px 44px;
  padding: 28px 0 0 34px;
  border-top: 1px solid var(--line);
  color: #b7c3c7;
  font-size: clamp(22px, 3vw, 36px);
  letter-spacing: -.025em;
}

.loop-close strong {
  color: var(--cyan);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px max(4vw, 26px);
  border-top: 1px solid var(--line);
  color: var(--quiet);
  font: 600 9px/1.4 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

@media (max-width: 780px) {
  :root {
    --header-height: 68px;
  }

  body::before {
    background-size: 30px 30px;
  }

  .topbar {
    padding: 0 18px;
  }

  .logo {
    gap: 5px;
  }

  .logo b {
    font-size: 14px;
  }

  .logo small {
    display: none;
  }

  .login {
    min-width: 104px;
    padding: 12px 14px;
    font-size: 11px;
  }

  .hero {
    min-height: calc(600px - var(--header-height));
    padding: 76px 22px 90px;
  }

  .hero h1 {
    max-width: 350px;
    font-size: clamp(47px, 14vw, 66px);
  }

  .hero p {
    margin-top: 30px;
    font-size: 18px;
    line-height: 1.5;
  }

  .integrations {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
    padding: 26px 22px;
  }

  .loop {
    padding: 58px 18px 20px;
  }

  .loop::before {
    top: 58px;
    bottom: 76px;
    left: 25px;
  }

  .chapter {
    display: block;
    min-height: 0;
    padding: 20px 0 100px 30px;
  }

  .chapter-copy {
    position: static;
  }

  .chapter-label {
    margin-left: -31.5px;
  }

  .chapter h2 {
    margin-top: 26px;
    font-size: 39px;
  }

  .chapter-copy p {
    font-size: 16px;
  }

  .product-view {
    margin-top: 38px;
    box-shadow: 0 18px 42px rgba(0, 0, 0, .28);
  }

  .view-bar {
    padding: 14px;
  }

  .view-body {
    padding: 18px;
  }

  .plan-meta {
    grid-template-columns: repeat(2, 1fr);
  }

  .plan-meta div:nth-child(2) {
    border-right: 0;
  }

  .plan-meta div:nth-child(-n+2) {
    border-bottom: 1px solid var(--line);
  }

  .phase-line {
    grid-template-columns: repeat(4, minmax(66px, 1fr));
    overflow: hidden;
  }

  .week-row {
    grid-template-columns: 52px 1fr 55px;
    font-size: 10px;
  }

  .week-row span:last-child {
    display: none;
  }

  .week-summary {
    align-items: flex-start;
  }

  .week-summary h3 {
    font-size: 25px;
  }

  .week-total {
    font-size: 18px;
  }

  .run-row {
    grid-template-columns: 54px 1fr 66px;
    gap: 8px;
  }

  .adjustment {
    display: block;
  }

  .illustrative-action {
    display: block;
    margin-top: 18px;
    text-align: center;
  }

  .assessment {
    display: block;
  }

  .goal-read {
    margin-top: 22px;
    padding: 22px 0 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .stats {
    display: block;
  }

  .stat,
  .stat + .stat {
    padding: 18px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .coach-proof {
    grid-template-columns: 1fr;
  }

  .loop-close {
    margin: -30px 0 70px 30px;
    padding-left: 20px;
  }

  footer {
    display: block;
  }

  footer span:last-child {
    display: block;
    margin-top: 8px;
  }
}

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

  .login {
    transition: none;
  }
}