:root {
  --sprint-ink: #0f172a;
  --sprint-muted: #526079;
  --sprint-line: #dce4ef;
  --sprint-surface: #ffffff;
  --sprint-soft: #f4f7fb;
  --sprint-brand: #5b4ef5;
  --sprint-brand-dark: #3929cd;
  --sprint-mint: #0f9f78;
  --sprint-gold: #ffcb66;
}

body {
  background:
    radial-gradient(circle at 12% 8%, rgba(91, 78, 245, 0.16), transparent 28rem),
    radial-gradient(circle at 88% 18%, rgba(15, 159, 120, 0.12), transparent 25rem),
    #f7f9fc;
  color: var(--sprint-ink);
}

.sprint-header {
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(220, 228, 239, 0.9);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.sprint-nav {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1180px;
  padding: 0.9rem 1.25rem;
}

.sprint-brand {
  align-items: center;
  color: var(--sprint-ink);
  display: flex;
  font-weight: 800;
  gap: 0.7rem;
}

.sprint-brand img {
  height: 2.35rem;
  width: 2.35rem;
}

.back-link {
  color: var(--sprint-muted);
  font-weight: 650;
}

.sprint-hero {
  margin: 0 auto;
  max-width: 1180px;
  padding: 5rem 1.25rem 3.2rem;
}

.eyebrow {
  align-items: center;
  background: rgba(91, 78, 245, 0.1);
  border: 1px solid rgba(91, 78, 245, 0.18);
  border-radius: 999px;
  color: var(--sprint-brand-dark);
  display: inline-flex;
  font-size: 0.84rem;
  font-weight: 800;
  gap: 0.45rem;
  letter-spacing: 0.04em;
  padding: 0.45rem 0.75rem;
  text-transform: uppercase;
}

.sprint-hero h1 {
  font-size: clamp(2.65rem, 7vw, 5.7rem);
  letter-spacing: -0.065em;
  line-height: 0.98;
  margin: 1.25rem 0 1.35rem;
  max-width: 900px;
}

.hero-accent {
  background: linear-gradient(100deg, var(--sprint-brand), var(--sprint-mint));
  background-clip: text;
  color: transparent;
  -webkit-background-clip: text;
}

.sprint-hero > p {
  color: var(--sprint-muted);
  font-size: clamp(1.08rem, 2.3vw, 1.35rem);
  line-height: 1.65;
  max-width: 760px;
}

.loop-strip {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 2.2rem;
}

.loop-strip span {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--sprint-line);
  border-radius: 0.9rem;
  color: var(--sprint-muted);
  font-weight: 750;
  padding: 0.8rem;
  text-align: center;
}

.sprint-shell {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(290px, 0.72fr) minmax(0, 1.28fr);
  margin: 0 auto;
  max-width: 1180px;
  padding: 0 1.25rem 5rem;
}

.sprint-card {
  background: rgba(255, 255, 255, 0.93);
  border: 1px solid var(--sprint-line);
  border-radius: 1.35rem;
  box-shadow: 0 22px 70px rgba(31, 42, 68, 0.08);
  min-width: 0;
}

.builder-card {
  align-self: start;
  padding: 1.45rem;
  position: sticky;
  top: 5.6rem;
}

.card-kicker {
  color: var(--sprint-brand);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.builder-card h2,
.plan-card h2 {
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  letter-spacing: -0.035em;
  margin: 0.4rem 0 0.65rem;
}

.helper {
  color: var(--sprint-muted);
  line-height: 1.55;
}

.field {
  border: 0;
  margin: 1.2rem 0 0;
  padding: 0;
}

.field label,
.field legend {
  display: block;
  font-size: 0.9rem;
  font-weight: 780;
  margin-bottom: 0.48rem;
}

.field select,
.field input[type='range'] {
  width: 100%;
}

.field select {
  background: var(--sprint-surface);
  border: 1px solid #cbd5e1;
  border-radius: 0.75rem;
  color: var(--sprint-ink);
  font: inherit;
  padding: 0.8rem 0.85rem;
}

.field select.visually-hidden {
  height: 1px;
  margin: -1px;
  padding: 0;
  width: 1px;
}

.choice-row {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(3, 1fr);
}

.choice-row input {
  position: absolute;
  opacity: 0;
}

.choice-row label {
  border: 1px solid #cbd5e1;
  border-radius: 0.75rem;
  cursor: pointer;
  margin: 0;
  padding: 0.65rem 0.4rem;
  text-align: center;
}

.choice-row input:checked + label {
  background: rgba(91, 78, 245, 0.1);
  border-color: var(--sprint-brand);
  color: var(--sprint-brand-dark);
}

.skill-grid {
  display: grid;
  gap: 0.8rem;
}

.skill-control {
  align-items: center;
  display: grid;
  gap: 0.5rem;
  grid-template-columns: 8.2rem 1fr;
}

.skill-control label {
  font-size: 0.82rem;
  margin: 0;
}

.range-labels {
  color: var(--sprint-muted);
  display: flex;
  font-size: 0.72rem;
  justify-content: space-between;
  margin-top: 0.28rem;
}

.primary-action,
.secondary-action,
.text-action {
  align-items: center;
  border: 0;
  border-radius: 0.82rem;
  display: inline-flex;
  font: inherit;
  font-weight: 800;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.74rem 1rem;
}

.primary-action {
  background: linear-gradient(115deg, var(--sprint-brand), var(--sprint-brand-dark));
  color: #fff;
  margin-top: 1.3rem;
  width: 100%;
}

.secondary-action {
  background: var(--sprint-soft);
  border: 1px solid var(--sprint-line);
  color: var(--sprint-ink);
}

.text-action {
  background: transparent;
  color: var(--sprint-muted);
}

.plan-card {
  min-height: 38rem;
  padding: 1.45rem;
}

.empty-state {
  align-items: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 34rem;
  text-align: center;
}

.empty-orbit {
  align-items: center;
  background: linear-gradient(135deg, rgba(91, 78, 245, 0.14), rgba(15, 159, 120, 0.15));
  border-radius: 50%;
  display: flex;
  font-size: 3rem;
  height: 8rem;
  justify-content: center;
  margin-bottom: 1.3rem;
  width: 8rem;
}

.empty-state p {
  color: var(--sprint-muted);
  max-width: 28rem;
}

.plan-topline {
  align-items: start;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
}

.score-badge {
  background: #0f172a;
  border-radius: 1rem;
  color: #fff;
  flex: 0 0 auto;
  min-width: 7rem;
  padding: 0.75rem;
  text-align: center;
}

.score-badge strong {
  display: block;
  font-size: 1.45rem;
}

.score-badge span {
  color: #cbd5e1;
  font-size: 0.7rem;
}

.focus-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.focus-chip {
  background: #eef2ff;
  border-radius: 999px;
  color: #3730a3;
  font-size: 0.78rem;
  font-weight: 760;
  padding: 0.45rem 0.68rem;
}

.progress-track {
  background: #e8edf4;
  border-radius: 999px;
  height: 0.65rem;
  overflow: hidden;
}

.progress-value {
  background: linear-gradient(90deg, var(--sprint-brand), var(--sprint-mint));
  border-radius: inherit;
  height: 100%;
  transition: width 220ms ease;
  width: 0;
}

.progress-copy {
  color: var(--sprint-muted);
  font-size: 0.8rem;
  margin: 0.4rem 0 0;
}

.day-list {
  display: flex;
  gap: 0.45rem;
  margin: 1.2rem -0.25rem 0.9rem;
  overflow-x: auto;
  padding: 0.25rem;
}

.day-button {
  background: #fff;
  border: 1px solid var(--sprint-line);
  border-radius: 0.75rem;
  color: var(--sprint-muted);
  display: grid;
  flex: 0 0 5.25rem;
  gap: 0.12rem;
  padding: 0.55rem;
  text-align: left;
}

.day-button.is-active {
  border-color: var(--sprint-brand);
  box-shadow: 0 0 0 3px rgba(91, 78, 245, 0.12);
  color: var(--sprint-ink);
}

.day-button.is-complete {
  background: #ecfdf5;
  border-color: #6ee7b7;
}

.day-number {
  font-size: 0.95rem;
  font-weight: 850;
}

.day-focus {
  font-size: 0.64rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mission {
  background: var(--sprint-soft);
  border: 1px solid var(--sprint-line);
  border-radius: 1rem;
  padding: 1rem;
}

.mission-heading {
  align-items: center;
  display: grid;
  gap: 0.1rem 0.7rem;
  grid-template-columns: auto 1fr;
  margin-bottom: 0.8rem;
}

.mission-heading h3,
.mission-heading p {
  margin: 0;
}

.mission-heading p {
  color: var(--sprint-muted);
  font-size: 0.76rem;
}

.mission-icon {
  font-size: 1.55rem;
  grid-row: 1 / 3;
}

.mission-step {
  align-items: start;
  background: #fff;
  border: 1px solid var(--sprint-line);
  border-radius: 0.82rem;
  cursor: pointer;
  display: flex;
  gap: 0.7rem;
  margin-top: 0.55rem;
  padding: 0.78rem;
}

.mission-step input {
  accent-color: var(--sprint-mint);
  flex: 0 0 auto;
  height: 1.1rem;
  margin-top: 0.16rem;
  width: 1.1rem;
}

.mission-step.is-complete {
  background: #f0fdf8;
  border-color: #8ee4c7;
}

.step-copy {
  display: grid;
  gap: 0.2rem;
}

.step-label {
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.step-instruction {
  color: #334155;
  font-size: 0.9rem;
  line-height: 1.45;
}

.practice-disclosure {
  color: var(--sprint-muted);
  font-size: 0.72rem;
  margin: 0.75rem 0 0;
}

.plan-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.9rem;
}

.status {
  color: var(--sprint-muted);
  font-size: 0.8rem;
  min-height: 1.2rem;
  padding-top: 0.75rem;
}

.evidence-section {
  margin: 0 auto;
  max-width: 1180px;
  padding: 0 1.25rem 5rem;
}

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

.evidence-item {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--sprint-line);
  border-radius: 1rem;
  padding: 1.2rem;
}

.evidence-item strong {
  display: block;
  margin-bottom: 0.4rem;
}

.evidence-item p {
  color: var(--sprint-muted);
  margin: 0;
}

.cohort-callout {
  background: #0f172a;
  border-radius: 1.35rem;
  color: #fff;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr auto;
  margin-top: 1.2rem;
  padding: 1.5rem;
}

.cohort-callout h2,
.cohort-callout p {
  margin: 0;
}

.cohort-callout p {
  color: #cbd5e1;
  margin-top: 0.45rem;
}

.cohort-callout a {
  align-self: center;
  background: var(--sprint-gold);
  border-radius: 0.82rem;
  color: #332400;
  font-weight: 850;
  padding: 0.8rem 1rem;
  text-align: center;
}

.consent {
  align-items: center;
  background: #fff;
  border: 1px solid var(--sprint-line);
  border-radius: 1rem;
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.1);
  display: flex;
  gap: 0.75rem;
  margin: 1rem auto 0;
  max-width: 1180px;
  padding: 0.9rem;
  width: calc(100% - 2.5rem);
}

.consent p {
  color: var(--sprint-muted);
  font-size: 0.78rem;
  margin: 0;
}

.consent button {
  border: 0;
  border-radius: 0.65rem;
  font: inherit;
  font-size: 0.76rem;
  font-weight: 800;
  padding: 0.55rem 0.7rem;
}

.consent .allow {
  background: var(--sprint-brand);
  color: #fff;
}

.consent .decline {
  background: var(--sprint-soft);
  color: var(--sprint-ink);
}

.sprint-footer {
  color: var(--sprint-muted);
  font-size: 0.8rem;
  padding: 1.5rem;
  text-align: center;
}

@media (max-width: 860px) {
  .loop-strip,
  .evidence-grid {
    grid-template-columns: 1fr;
  }

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

  .builder-card {
    position: static;
  }

  .cohort-callout {
    grid-template-columns: 1fr;
  }

  .consent {
    align-items: stretch;
    flex-wrap: wrap;
    width: calc(100% - 2rem);
  }

  .consent p {
    flex-basis: 100%;
  }
}

@media (max-width: 520px) {
  .sprint-hero {
    padding-top: 3.3rem;
  }

  .sprint-hero h1 {
    letter-spacing: -0.045em;
  }

  .plan-topline {
    display: block;
  }

  .score-badge {
    margin-top: 0.8rem;
    text-align: left;
  }

  .plan-actions {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}