:root {
  --ice: #edf7ff;
  --navy: #071827;
  --blue: #1d7ed0;
  --orange: #ff7a18;
  --panel: #ffffff;
  --muted: #5f7182;
  --line: #dce8f3;
  --shadow: 0 18px 50px rgba(7, 24, 39, 0.12);
}

* { box-sizing: border-box; }

.suite-nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.suite-brand {
  color: var(--navy);
  font-weight: 1000;
  letter-spacing: -0.03em;
  text-decoration: none;
}
.suite-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}
.suite-links a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 11px;
  border: 1px solid #b9dcf7;
  border-radius: 999px;
  background: rgba(255,255,255,.78);
  color: #16415f;
  text-decoration: none;
  font-size: .84rem;
  font-weight: 900;
}
.suite-links a[aria-current="page"] { background: var(--navy); color: #fff; border-color: var(--navy); }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #dff3ff 0, transparent 34%), linear-gradient(180deg, #f8fcff 0%, #eaf3f9 100%);
  color: var(--navy);
}

.hero {
  padding: 34px 210px 22px 20px;
  max-width: 1120px;
  margin: 0 auto;
  position: relative;
}
.hero-copy { min-width: 0; }
.hero h1 { margin: 4px 0 8px; font-size: clamp(2.1rem, 6vw, 4.1rem); letter-spacing: -0.06em; line-height: 0.94; max-width: 700px; }
.lede { font-size: 1.08rem; color: var(--muted); max-width: 680px; margin: 0; line-height: 1.45; }
.eyebrow { color: var(--orange); text-transform: uppercase; letter-spacing: .14em; font-weight: 800; font-size: .74rem; margin: 0 0 5px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.primary-link, .secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 900;
  text-decoration: none;
}
.primary-link { background: linear-gradient(135deg, var(--blue), #0c4f96); color: #fff; box-shadow: 0 14px 24px rgba(29,126,208,.18); }
.secondary-link { background: #fff; color: var(--blue); border: 1px solid #b9dcf7; }
.primary-link:focus, .secondary-link:focus, .primary-link:hover, .secondary-link:hover { outline: 3px solid rgba(29,126,208,.18); outline-offset: 2px; }
.hero-card {
  position: absolute;
  top: 18px;
  right: 96px;
  width: 182px;
  min-height: 156px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 16px;
  border-radius: 22px;
  border: 1px solid rgba(7, 24, 39, .08);
  background: linear-gradient(135deg, #071827, #16415f);
  color: #fff;
  box-shadow: 0 18px 40px rgba(7, 24, 39, .17);
}
.hero-card strong { font-size: 1.05rem; line-height: 1.05; }
.hero-card span { color: #d8edff; font-size: .82rem; line-height: 1.32; }

main { max-width: 1120px; margin: 0 auto; padding: 0 20px 38px; display: grid; gap: 18px; }
.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  padding: 0;
}
.trust-strip span {
  background: rgba(255,255,255,.9);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px;
  color: #16415f;
  font-weight: 850;
  text-align: center;
  box-shadow: 0 10px 28px rgba(7, 24, 39, 0.07);
}
.panel { background: rgba(255,255,255,.92); border: 1px solid var(--line); border-radius: 24px; padding: 20px; box-shadow: var(--shadow); backdrop-filter: blur(10px); }
.section-intro { margin-bottom: 14px; }
h2 { margin: 0 0 14px; font-size: 1.45rem; }
.section-intro h2 { margin-bottom: 6px; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.onboarding-grid { align-items: end; }
.wide-field { grid-column: span 3; }
label { font-weight: 750; font-size: .94rem; }
select { width: 100%; margin-top: 7px; border: 1px solid var(--line); border-radius: 12px; padding: 12px; font: inherit; background: #fff; color: var(--navy); }
fieldset { border: 0; padding: 0; margin: 18px 0 0; }
legend { font-weight: 850; margin-bottom: 8px; }
.chips { display: flex; flex-wrap: wrap; gap: 9px; }
.chips label { display: inline-flex; align-items: center; gap: 7px; padding: 10px 12px; border: 1px solid var(--line); background: #f7fbff; border-radius: 999px; cursor: pointer; }
.chips input { accent-color: var(--blue); }
button { border: 0; border-radius: 14px; font: inherit; font-weight: 850; cursor: pointer; }
.primary { margin-top: 20px; background: linear-gradient(135deg, var(--blue), #0c4f96); color: #fff; padding: 14px 18px; width: 100%; box-shadow: 0 14px 24px rgba(29,126,208,.22); }
.form-note { color: var(--muted); font-size: .9rem; line-height: 1.4; margin: 10px 0 0; }
.ghost { background: #edf5fc; color: var(--navy); padding: 10px 12px; }
.section-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; margin-bottom: 14px; }
.mini-note { color: var(--muted); margin: 0; font-size: .88rem; }
code { background: #eef5fb; padding: 2px 5px; border-radius: 5px; }

.plan-output { display: grid; gap: 14px; }
.plan-summary-card {
  border: 1px solid #cfe4f5;
  border-radius: 20px;
  padding: 16px;
  background: linear-gradient(135deg, #f8fcff 0%, #eaf6ff 100%);
  display: grid;
  gap: 12px;
}
.plan-summary-card h3 { margin: 0 0 6px; font-size: 1.25rem; }
.plan-summary-card p { margin: 0; color: var(--muted); line-height: 1.4; }
.summary-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.summary-grid div { background: rgba(255,255,255,.82); border: 1px solid var(--line); border-radius: 14px; padding: 10px; }
.summary-grid strong { display: block; font-size: .74rem; text-transform: uppercase; letter-spacing: .09em; color: var(--muted); margin-bottom: 3px; }
.summary-grid span { font-weight: 850; }
.focus-row { display: flex; flex-wrap: wrap; gap: 7px; }
.week-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 7px; }
.week-list li { display: flex; justify-content: space-between; gap: 10px; border-bottom: 1px solid rgba(7,24,39,.08); padding-bottom: 7px; }
.week-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.inline-demo-link { width: fit-content; }
.day-card { border: 1px solid var(--line); border-radius: 18px; padding: 0; background: linear-gradient(180deg, #fff, #f9fcff); overflow: hidden; }
.day-card summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 12px; align-items: center; padding: 16px; font-weight: 900; }
.day-card summary::-webkit-details-marker { display: none; }
.day-card summary::after { content: '+'; width: 28px; height: 28px; border-radius: 999px; display: grid; place-items: center; background: #edf5fc; color: var(--blue); flex: 0 0 auto; }
.day-card[open] summary::after { content: '–'; }
.day-card summary em { font-style: normal; color: var(--muted); font-weight: 750; font-size: .86rem; margin-left: auto; }
.block { margin: 0 16px 14px; padding-left: 12px; border-left: 4px solid var(--blue); }
.block h4 { margin: 0 0 7px; font-size: 1rem; }
.block ul { margin: 0; padding-left: 18px; color: #25394a; }
.block li { margin: 5px 0; }
.plan-item-topline { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.plan-item-topline span { min-width: 0; }
.demo-jump {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 7px 11px;
  border-radius: 999px;
  background: #e8f4ff;
  color: var(--blue);
  border: 1px solid #b9dcf7;
  font-size: .78rem;
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 6px 14px rgba(29,126,208,.12);
}
.demo-jump::before { content: '✓'; font-size: .72rem; margin-right: 5px; }
.demo-jump:focus, .demo-jump:hover { background: var(--blue); color: #fff; border-color: var(--blue); }
.activity-detail { margin-bottom: 12px; }
.activity-detail p { margin: 4px 0 0; color: var(--muted); line-height: 1.35; }
.activity-detail b { color: var(--navy); }
.safety { border-radius: 14px; background: #fff7ed; color: #7a3d00; padding: 12px; border: 1px solid #ffd6a8; font-weight: 700; }

.exercise-library { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.exercise-card { border: 1px solid var(--line); border-radius: 18px; overflow: hidden; background: #fff; scroll-margin-top: 16px; transition: box-shadow .2s ease, border-color .2s ease, transform .2s ease; }
.exercise-card:focus { outline: none; }
.exercise-card.demo-highlight { border-color: var(--orange); box-shadow: 0 0 0 4px rgba(255, 122, 24, .18), var(--shadow); transform: translateY(-2px); }
.guide-slot { min-height: 168px; background: linear-gradient(135deg, #071827, #16415f); display: grid; place-items: center; color: #d8edff; padding: 18px; text-align: center; position: relative; }
.guide-slot:not(.has-demo)::after { content: 'Movement guide'; position: absolute; bottom: 10px; right: 10px; font-size: .7rem; opacity: .7; }
.guide-slot.has-demo { padding: 0; background: #071827; display: block; }
.guide-slot video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: #f4f6f8; }
.demo-caption { position: absolute; left: 10px; bottom: 10px; margin: 0; padding: 4px 8px; border-radius: 999px; background: rgba(7, 24, 39, .78); color: #fff; font-size: .72rem; }
.guide-icon { width: 56px; height: 56px; border-radius: 50%; background: rgba(255,255,255,.16); display: grid; place-items: center; margin: 0 auto 8px; border: 1px solid rgba(255,255,255,.25); color: #fff; font-weight: 900; }
.guide-slot:not(.has-demo) p { margin: 6px 0 0; color: #d8edff; font-size: .84rem; line-height: 1.35; max-width: 260px; }
.exercise-body { padding: 14px; }
.exercise-body h3 { margin: 0 0 8px; }
.purpose { color: var(--muted); margin: 0 0 10px; }
.detail-grid { display: grid; gap: 10px; }
.source-note { background: #f8fcff; border: 1px dashed #b9dcf7; border-radius: 12px; padding: 10px; color: var(--muted); }
.back-to-plan { display: inline-flex; margin-top: 12px; color: var(--blue); font-weight: 900; text-decoration: none; }
.back-to-plan:focus, .back-to-plan:hover { text-decoration: underline; }
.detail-grid strong { display: block; margin-bottom: 3px; color: var(--navy); }
.detail-grid ul { margin: 0; padding-left: 18px; }
.badge-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0; }
.badge { background: var(--ice); color: #16415f; padding: 5px 8px; border-radius: 999px; font-size: .76rem; font-weight: 800; }

footer { max-width: 1120px; margin: 0 auto; padding: 0 20px 30px; color: var(--muted); font-size: .9rem; }
footer a { color: var(--blue); font-weight: 900; }

@media (max-width: 760px) {
  .hero { padding: 24px 16px 18px; display: grid; grid-template-columns: 1fr; gap: 12px; align-items: start; }
  .hero-copy { grid-column: 1; }
  .hero h1 { font-size: clamp(2rem, 12vw, 3.2rem); max-width: 100%; }
  .hero-card { position: static; width: 100%; min-height: auto; grid-column: 1; }
  .hero-actions { gap: 8px; }
  .primary-link, .secondary-link { width: 100%; }
  .trust-strip { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .trust-strip span { font-size: .82rem; padding: 10px 8px; }
  .grid, .exercise-library, .summary-grid { grid-template-columns: 1fr; }
  .wide-field { grid-column: auto; }
  .section-head { flex-direction: column; }
  .panel { border-radius: 18px; padding: 16px; }
  .day-card summary { align-items: flex-start; }
  .day-card summary span { min-width: 0; }
  .day-card summary em { display: block; margin-left: 0; margin-top: 3px; }
  .plan-item-topline { align-items: flex-start; }
  .demo-jump { min-height: 38px; padding: 8px 12px; }
  .exercise-card { scroll-margin-top: 10px; }
}

@media (max-width: 430px) {
  main { padding-left: 12px; padding-right: 12px; }
  .hero { padding-left: 12px; padding-right: 12px; }
  .trust-strip { grid-template-columns: 1fr; }
  .chips label { width: 100%; }
  .week-list li, .plan-item-topline { flex-direction: column; align-items: flex-start; }
  .demo-jump { width: 100%; }
}