:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-soft: #f0f2f6;
  --text: #07111f;
  --muted: #7f8791;
  --line: #dfe3e8;
  --blue: #3586f4;
  --blue-dark: #1d6ed9;
  --danger: #cf2f3d;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(7, 17, 31, 0.08);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.app-shell { min-height: 100vh; padding-bottom: calc(24px + env(safe-area-inset-bottom)); }
.screen { max-width: 760px; margin: 0 auto; min-height: 100vh; background: var(--surface); }
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 12px; min-height: 76px; padding: calc(12px + env(safe-area-inset-top)) 18px 12px; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.topbar h1 { margin: 0; font-size: 32px; line-height: 1.1; flex: 1; }
.topbar .compact-title { font-size: 23px; }
.content { padding: 18px; }

.btn { min-height: 48px; border: 0; border-radius: 14px; padding: 0 18px; font-weight: 650; background: var(--surface-soft); color: var(--text); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--blue); color: white; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-danger { color: var(--danger); }
.btn-icon { width: 48px; padding: 0; font-size: 26px; background: var(--surface-soft); }
.btn-link { background: transparent; color: var(--blue-dark); padding: 0 8px; }
.btn-full { width: 100%; }

.toolbar { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 24px; }
.section-heading { display: flex; justify-content: space-between; align-items: baseline; margin: 20px 0 12px; }
.section-heading h2 { margin: 0; font-size: 22px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; background: var(--surface); box-shadow: 0 1px 0 rgba(7,17,31,.02); }
.card + .card { margin-top: 14px; }
.routine-card h3 { margin: 0 40px 6px 0; font-size: 24px; }
.routine-summary { color: var(--muted); margin: 0 0 16px; line-height: 1.45; }
.card-actions { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.menu-wrap { position: relative; }
.menu { position: absolute; right: 0; top: 52px; z-index: 10; min-width: 180px; background: white; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.menu button { width: 100%; text-align: left; border: 0; background: white; padding: 14px 16px; }
.menu button:hover { background: var(--surface-soft); }

.empty { padding: 50px 20px; text-align: center; border: 1px dashed var(--line); border-radius: var(--radius); }
.empty h2 { margin-top: 0; }

.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 7px; font-size: 14px; font-weight: 700; }
.input, .select, .textarea { width: 100%; border: 1px solid var(--line); border-radius: 14px; background: white; padding: 13px 14px; color: var(--text); min-height: 48px; }
.input:focus, .select:focus, .textarea:focus { outline: 3px solid rgba(53,134,244,.18); border-color: var(--blue); }
.textarea { min-height: 88px; resize: vertical; }

.exercise-list { display: grid; gap: 12px; }
.exercise-row { display: grid; grid-template-columns: 34px 1fr auto; gap: 10px; align-items: start; border: 1px solid var(--line); border-radius: 16px; padding: 14px; background: white; }
.exercise-row .drag { color: var(--muted); font-size: 22px; user-select: none; }
.exercise-row h3 { margin: 0 0 4px; font-size: 18px; }
.exercise-meta { color: var(--muted); font-size: 14px; line-height: 1.4; }
.exercise-row .row-actions { display: flex; flex-direction: column; gap: 6px; }
.mini-btn { min-width: 40px; min-height: 40px; border: 0; border-radius: 12px; background: var(--surface-soft); }

.search-wrap { position: sticky; top: 76px; z-index: 15; background: white; padding-bottom: 10px; }
.search { font-size: 18px; }
.chips { display: flex; overflow-x: auto; gap: 8px; padding: 8px 0 4px; scrollbar-width: none; }
.chips::-webkit-scrollbar { display: none; }
.chip { white-space: nowrap; min-height: 38px; border: 1px solid var(--line); border-radius: 999px; padding: 0 14px; background: white; }
.chip.active { background: var(--text); color: white; border-color: var(--text); }
.library-list { display: grid; gap: 8px; }
.library-item { width: 100%; text-align: left; border: 1px solid var(--line); border-radius: 14px; background: white; padding: 14px; }
.library-item strong { display: block; font-size: 17px; }
.library-item span { color: var(--muted); font-size: 13px; }

.set-grid { display: grid; grid-template-columns: 54px 1fr 1fr auto; gap: 8px; align-items: center; margin-top: 10px; }
.set-grid .head { color: var(--muted); font-size: 12px; font-weight: 700; text-transform: uppercase; }
.set-grid input { min-width: 0; text-align: center; }

.footer-actions { position: sticky; bottom: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 14px 18px calc(14px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.96); border-top: 1px solid var(--line); backdrop-filter: blur(16px); }

.dialog-backdrop { position: fixed; inset: 0; z-index: 100; display: grid; place-items: end center; background: rgba(7,17,31,.42); }
.dialog { width: min(760px, 100%); max-height: 90vh; overflow: auto; background: white; border-radius: 24px 24px 0 0; padding: 22px 18px calc(22px + env(safe-area-inset-bottom)); box-shadow: var(--shadow); }
.dialog h2 { margin-top: 0; }
.dialog-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; }

.badge { display: inline-flex; align-items: center; min-height: 26px; border-radius: 999px; padding: 0 9px; background: var(--surface-soft); color: var(--muted); font-size: 12px; font-weight: 700; }
.toast { position: fixed; left: 50%; bottom: calc(22px + env(safe-area-inset-bottom)); z-index: 200; transform: translateX(-50%) translateY(30px); opacity: 0; pointer-events: none; background: var(--text); color: white; padding: 12px 16px; border-radius: 12px; transition: .2s ease; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (min-width: 700px) {
  body { padding: 24px; }
  .screen { border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); min-height: calc(100vh - 48px); }
  .dialog-backdrop { place-items: center; }
  .dialog { border-radius: 24px; max-width: 620px; }
}

.workout-title { flex: 1; min-width: 0; }
.workout-title h1 { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.workout-summary { position: sticky; top: 76px; z-index: 14; display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.97); }
.workout-summary div { padding: 12px 8px; text-align: center; border-right: 1px solid var(--line); }
.workout-summary div:last-child { border-right: 0; }
.workout-summary strong { display: block; font-size: 19px; }
.workout-summary span { color: var(--muted); font-size: 11px; text-transform: uppercase; font-weight: 700; }
.workout-content { background: var(--bg); }
.workout-exercise { padding: 0; overflow: hidden; box-shadow: none; }
.workout-exercise + .workout-exercise { margin-top: 16px; }
.workout-exercise-head { display: flex; align-items: start; justify-content: space-between; gap: 12px; padding: 16px; }
.workout-exercise-head h2 { margin: 0; font-size: 21px; }
.workout-exercise-head p { margin: 5px 0 0; color: var(--muted); font-size: 13px; }
.workout-set-grid { position: relative; display: grid; grid-template-columns: 34px minmax(62px, 1fr) 70px 66px 48px; gap: 6px; align-items: center; min-height: 58px; padding: 7px 12px; border-top: 1px solid var(--line); }
.workout-set-head { min-height: 34px; color: var(--muted); font-size: 11px; font-weight: 700; text-transform: uppercase; background: var(--surface-soft); }
.workout-set-grid.completed { background: #f2f8ff; }
.set-number { font-weight: 700; text-align: center; }
.previous-value { color: var(--muted); font-size: 13px; text-align: center; }
.workout-input { width: 100%; min-width: 0; height: 42px; border: 1px solid var(--line); border-radius: 10px; text-align: center; font-weight: 700; background: white; }
.workout-input:focus { outline: 3px solid rgba(53,134,244,.18); border-color: var(--blue); }
.complete-btn { width: 42px; height: 42px; border: 0; border-radius: 12px; background: var(--surface-soft); font-size: 25px; color: var(--muted); }
.complete-btn.done { background: var(--blue); color: white; }
.remove-set-btn { position: absolute; right: -8px; top: -7px; width: 24px; height: 24px; border: 1px solid var(--line); border-radius: 50%; background: white; color: var(--danger); font-weight: 800; line-height: 1; }
@media (max-width: 430px) {
  .workout-set-grid { grid-template-columns: 28px minmax(54px, 1fr) 62px 58px 42px; padding-left: 8px; padding-right: 8px; gap: 4px; }
  .workout-input { font-size: 15px; }
  .workout-summary strong { font-size: 17px; }
}

/* Phase 3: supersets */
.footer-actions { grid-template-columns: 1fr 1fr 1fr; }
.superset-pill { display: inline-flex; align-items: center; border-radius: 999px; padding: 2px 7px; background: #eef5ff; color: var(--blue-dark); font-weight: 800; }
.superset-select-list { display: grid; gap: 8px; margin-top: 14px; }
.superset-select-row { display: grid; grid-template-columns: 34px 1fr; gap: 10px; align-items: center; min-height: 56px; padding: 12px; border: 1px solid var(--line); border-radius: 14px; }
.superset-select-row input { width: 22px; height: 22px; }
.superset-select-row span { display: grid; gap: 2px; }
.superset-select-row em { color: var(--muted); font-style: normal; font-size: 13px; }
.superset-card { border: 2px solid rgba(53,134,244,.25); border-radius: 20px; padding: 10px; background: #f8fbff; margin-bottom: 16px; }
.superset-card + .superset-card, .workout-exercise + .superset-card, .superset-card + .workout-exercise { margin-top: 16px; }
.superset-card-head { display: flex; justify-content: space-between; align-items: center; padding: 4px 6px 12px; color: var(--blue-dark); }
.superset-card-head strong { font-size: 15px; text-transform: uppercase; letter-spacing: .03em; }
.superset-card-head span { font-size: 13px; font-weight: 800; }
.workout-exercise.inside-superset { border-radius: 15px; box-shadow: none; }
.workout-exercise.inside-superset + .workout-exercise.inside-superset { margin-top: 10px; }
.superset-prefix { display: inline-flex; align-items: center; justify-content: center; min-width: 34px; min-height: 28px; margin-right: 6px; border-radius: 999px; background: var(--blue); color: white; font-size: 14px; vertical-align: middle; }
.workout-set-grid.next-set { outline: 2px solid var(--blue); outline-offset: -2px; background: #eef5ff; }
.workout-set-grid.next-set .set-number::after { content: ' next'; display: block; color: var(--blue-dark); font-size: 9px; text-transform: uppercase; }
@media (max-width: 430px) {
  .footer-actions { grid-template-columns: 1fr; }
  .footer-actions .btn { width: 100%; }
}

/* Phase 4: recent sessions */
.session-routine-head { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; background: var(--surface); margin-bottom: 16px; }
.session-routine-head h2 { margin: 0 0 6px; font-size: 25px; }
.session-routine-head p { margin: 0; }
.session-list { display: grid; gap: 10px; }
.session-card { width: 100%; display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; text-align: left; border: 1px solid var(--line); border-radius: 16px; background: white; padding: 16px; }
.session-card strong { display: block; font-size: 18px; margin-bottom: 4px; }
.session-card em { display: block; color: var(--muted); font-style: normal; font-size: 13px; }
.session-card b { color: var(--blue-dark); font-size: 16px; white-space: nowrap; }
.readonly-value { min-height: 42px; display: flex; align-items: center; justify-content: center; border-radius: 10px; background: var(--surface-soft); font-weight: 800; }

/* Bloody Dave's Suite presentation layer */
:root{--bg:#f4efe4;--surface:#fffdf8;--surface-soft:#e8eadf;--text:#1d251f;--muted:#697264;--line:#d9d0bf;--blue:#d87b36;--blue-dark:#bf6225;--danger:#9d321d;--shadow:0 16px 38px rgba(39,51,29,.09)}
html,body{background:radial-gradient(circle at top right,#dbe7cf 0,transparent 28rem),var(--bg)}.topbar{background:rgba(255,253,248,.96);border-bottom:3px solid #d87b36;align-items:center}.topbar h1{font-family:Georgia,serif;font-size:31px}.suite-heading{flex:1;min-width:0}.suite-heading p{margin:0 0 3px;color:#a35522;font-size:.66rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.suite-heading h1 span{color:#d87b36}.suite-heading nav{display:flex;gap:10px;margin-top:5px;font-size:.78rem}.suite-heading nav a{color:var(--muted);font-weight:800;text-decoration:none;border-bottom:2px solid transparent;padding-bottom:2px}.suite-heading nav a:hover,.suite-heading nav a.current{color:#a35522;border-color:#d87b36}.btn-primary{color:#1d251f}.btn-primary:hover{color:#1d251f}.card{box-shadow:0 2px 0 rgba(39,51,29,.02)}.section-heading h2,.routine-card h3{font-family:Georgia,serif}.chip.active{background:#1d251f;border-color:#1d251f}.workout-set-grid.completed{background:#edf5e7}.complete-btn.done,.superset-prefix{background:#d87b36}.superset-card{border-color:#d8b47a;background:#fffaf0}.superset-card-head,.superset-pill,.session-card b{color:#a35522}.superset-pill{background:#f8ead6}.workout-set-grid.next-set{outline-color:#d87b36;background:#fff6e8}.workout-set-grid.next-set .set-number::after{color:#a35522}