html { scroll-behavior: smooth; }
body { font-size: 16px; padding-bottom: calc(84px + env(safe-area-inset-bottom)); }
button, input, select { min-height: 48px; }
button { touch-action: manipulation; }
[hidden] { display: none !important; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 200; background: var(--ink); color: var(--panel); padding: 10px 14px; }
.skip-link:focus { top: 12px; }
.app-shell { width: min(100%, 760px); margin: 0 auto; min-height: 100vh; }
.topbar { min-height: 68px; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; }
.wordmark { color: var(--ink); font-size: 14px; font-weight: 850; letter-spacing: .16em; text-decoration: none; }
.wordmark span { color: var(--accent); }
.save-status { color: var(--faint); font-size: 11px; }
main { padding: 8px 18px 40px; }
.page { display: grid; gap: 20px; animation: enter .18s ease both; }
.page-head { display: grid; gap: 5px; }
.page-head h1 { margin: 0; font-size: clamp(28px, 8vw, 40px); letter-spacing: -.045em; line-height: 1; }
.page-head p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.eyebrow { color: var(--accent); font-size: 10px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.hero-workout { padding: 24px; display: grid; gap: 18px; border-color: var(--line-strong); }
.hero-workout h2 { margin: 3px 0 6px; font-size: clamp(34px, 10vw, 52px); letter-spacing: -.055em; line-height: .98; }
.hero-workout .focus { margin: 0; color: var(--muted); font-size: 16px; }
.workout-meta { display: flex; gap: 18px; color: var(--faint); font-size: 12px; }
.primary-action { width: 100%; min-height: 56px; font-size: 15px; border-radius: var(--radius); }
.section-title { margin: 6px 0 -8px; font-size: 13px; font-weight: 750; }
.week-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.target-card { min-height: 116px; display: flex; flex-direction: column; justify-content: space-between; gap: 12px; }
.target-card.wide { grid-column: 1 / -1; min-height: auto; flex-direction: row; align-items: center; }
.target-label { color: var(--muted); font-size: 12px; }
.target-value { font-size: 23px; font-weight: 750; letter-spacing: -.04em; }
.dots { display: flex; gap: 7px; }
.dot { width: 8px; height: 8px; border-radius: 50%; border: 1px solid var(--line-strong); background: var(--panel); }
.dot.filled { background: var(--ink); border-color: var(--ink); }
.inline-link { border: 0; background: transparent; padding: 0; min-height: 44px; color: var(--ink); font-weight: 700; text-decoration: underline; text-underline-offset: 4px; cursor: pointer; }
.bottom-nav { position: fixed; left: 50%; bottom: 0; transform: translateX(-50%); width: min(100%, 760px); min-height: calc(68px + env(safe-area-inset-bottom)); padding: 7px 12px env(safe-area-inset-bottom); display: grid; grid-template-columns: repeat(4, 1fr); background: color-mix(in srgb, var(--bg) 94%, transparent); border-top: 1px solid var(--line); backdrop-filter: blur(14px); z-index: 50; }
.bottom-nav a { min-height: 54px; color: var(--faint); text-decoration: none; font-size: 10px; font-weight: 650; display: grid; place-content: center; justify-items: center; gap: 4px; }
.bottom-nav a span { font-size: 16px; line-height: 1; }
.bottom-nav a.active { color: var(--ink); }
.bottom-nav a.active span { color: var(--accent); }
.workout-header { position: sticky; top: 0; z-index: 20; margin: -8px -18px 0; padding: 10px 18px 14px; background: color-mix(in srgb, var(--bg) 96%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.workout-topline { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.workout-title { margin: 0; font-size: 20px; letter-spacing: -.03em; }
.progress-track { height: 3px; margin-top: 12px; background: var(--line); overflow: hidden; }
.progress-track span { display: block; height: 100%; background: var(--ink); transition: width .18s ease; }
.exercise-list { display: grid; gap: 14px; }
.exercise-card { padding: 0; overflow: hidden; border-color: var(--line-strong); }
.exercise-card.is-complete { border-color: color-mix(in srgb, var(--green) 35%, var(--line)); }
.exercise-card-head { padding: 18px 18px 14px; display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: start; }
.exercise-card h2 { margin: 0 0 4px; font-size: 21px; letter-spacing: -.035em; line-height: 1.1; }
.exercise-sub { color: var(--muted); font-size: 12px; }
.technique { min-height: 44px; box-shadow: none; }
.last-time { margin: 0 18px 16px; padding: 14px; background: var(--panel-2); border-radius: var(--radius-sm); display: grid; gap: 5px; }
.last-time-label { color: var(--accent); font-size: 9px; font-weight: 800; letter-spacing: .14em; }
.last-time-value { font-size: 19px; font-weight: 750; letter-spacing: -.025em; font-variant-numeric: tabular-nums; }
.last-time-empty { color: var(--muted); font-size: 13px; }
.sets { padding: 0 18px; display: grid; gap: 9px; }
.set-row { display: grid; grid-template-columns: 48px minmax(0, 1fr) minmax(0, 1fr); gap: 8px; align-items: end; }
.set-number { min-height: 48px; display: grid; place-items: center start; color: var(--faint); font-size: 12px; font-weight: 700; }
.compact-field { position: relative; }
.compact-field label { position: absolute; z-index: 1; left: 11px; top: 7px; color: var(--faint); font-size: 8px; font-weight: 750; text-transform: uppercase; letter-spacing: .08em; }
.compact-field input { min-height: 58px; padding: 22px 10px 6px; font-size: 20px; font-weight: 680; font-variant-numeric: tabular-nums; }
.exercise-actions { display: flex; gap: 8px; padding: 14px 18px 18px; }
.exercise-actions .button { min-height: 48px; flex: 1; font-size: 13px; }
.exercise-actions .complete-button[aria-pressed="true"] { border-color: var(--green); color: var(--green); background: color-mix(in srgb, var(--green) 6%, var(--panel)); }
.add-set { flex: 0 0 auto !important; }
.suggestion { margin: 0 18px 16px; color: var(--muted); font-size: 12px; line-height: 1.45; }
.suggestion.ready { color: var(--green); font-weight: 650; }
.finish-zone { display: grid; gap: 9px; padding-top: 4px; }
.finish-zone small { color: var(--muted); text-align: center; line-height: 1.45; }
.list-stack { display: grid; gap: 10px; }
.history-card, .progress-option { width: 100%; text-align: left; min-height: 74px; padding: 15px 17px; display: flex; justify-content: space-between; align-items: center; gap: 16px; cursor: pointer; color: var(--ink); text-decoration: none; }
.history-card:hover, .progress-option:hover { border-color: var(--line-strong); background: var(--panel-2); }
.history-card strong, .progress-option strong { display: block; font-size: 15px; }
.history-card small, .progress-option small { color: var(--muted); }
.chevron { color: var(--faint); }
.empty-state { padding: 34px 20px; text-align: center; }
.empty-state h2 { margin: 0 0 7px; font-size: 18px; }
.empty-state p { color: var(--muted); margin: 0; line-height: 1.5; }
.detail-list { display: grid; gap: 10px; }
.detail-exercise { padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.detail-exercise:last-child { border: 0; padding-bottom: 0; }
.detail-exercise strong { display: block; margin-bottom: 5px; }
.detail-exercise span { color: var(--muted); font-variant-numeric: tabular-nums; }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.metric { min-width: 0; padding: 14px 12px; }
.metric span { display: block; color: var(--faint); font-size: 9px; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.metric strong { display: block; margin-top: 7px; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.trend { height: 130px; padding: 14px; display: flex; align-items: end; gap: 7px; }
.trend-bar { flex: 1; min-width: 8px; background: var(--ink); border-radius: 3px 3px 0 0; opacity: .86; }
.settings-group { display: grid; gap: 12px; }
.settings-card { display: grid; gap: 14px; }
.settings-card h2 { margin: 0; font-size: 16px; }
.settings-card p { margin: -6px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.settings-actions { display: grid; gap: 8px; }
.danger { color: var(--red); }
.cardio-form { display: grid; gap: 12px; }
.modal-backdrop { position: fixed; inset: 0; z-index: 100; padding: 20px; display: grid; place-items: center; background: color-mix(in srgb, var(--ink) 36%, transparent); }
.modal { width: min(100%, 420px); padding: 20px; box-shadow: var(--shadow); display: grid; gap: 16px; }
.modal h2 { margin: 0; }
.modal-actions { display: flex; gap: 8px; }
.modal-actions .button { flex: 1; }
.success { min-height: 65vh; align-content: center; text-align: center; }
.success-mark { width: 64px; height: 64px; margin: 0 auto; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--panel); font-size: 28px; }
.success h1 { font-size: 36px; margin: 6px 0 0; letter-spacing: -.05em; }
.success p { color: var(--muted); line-height: 1.5; }
.toast { bottom: calc(84px + env(safe-area-inset-bottom)); left: 50%; right: auto; transform: translate(-50%, 10px); width: min(calc(100% - 32px), 440px); text-align: center; }
.toast.show { transform: translate(-50%, 0); }
@keyframes enter { from { opacity: 0; transform: translateY(4px); } }
@media (min-width: 680px) {
  main { padding-inline: 28px; }
  .topbar { padding-inline: 30px; }
  .week-grid { grid-template-columns: repeat(3, 1fr); }
  .target-card.wide { grid-column: auto; min-height: 116px; flex-direction: column; align-items: flex-start; }
  .exercise-card-head, .sets, .exercise-actions { padding-left: 22px; padding-right: 22px; }
  .last-time, .suggestion { margin-left: 22px; margin-right: 22px; }
}
@media (max-width: 350px) {
  main { padding-inline: 12px; }
  .hero-workout { padding: 20px; }
  .exercise-card-head { grid-template-columns: 1fr; }
  .technique { justify-self: start; }
  .set-row { grid-template-columns: 36px minmax(0, 1fr) minmax(0, 1fr); gap: 5px; }
  .metrics { grid-template-columns: 1fr; }
}