:root {
  --bg: #0b0d10;
  --panel: #171c24;
  --panel-2: #1e2530;
  --line: rgba(242, 237, 228, 0.08);
  --text: #f2ede4;
  --muted: #9aa3b2;
  --copper: #e8a54b;
  --copper-2: #ffc46b;
  --teal: #3dbdb5;
  --ok: #6fcf97;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --radius: 18px;
  --font-display: "Bebas Neue", Impact, sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(1200px 700px at 10% -10%, rgba(232, 165, 75, 0.18), transparent 55%),
    radial-gradient(900px 600px at 110% 0%, rgba(61, 189, 181, 0.14), transparent 50%),
    linear-gradient(180deg, #10141a 0%, var(--bg) 40%, #080a0d 100%);
  background-attachment: fixed;
}
.noise {
  pointer-events: none; position: fixed; inset: 0; opacity: 0.04; z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
#app { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; padding: 16px 16px calc(110px + var(--safe-bottom)); }
.hidden { display: none !important; }
.topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; animation: rise .5s ease both; }
.topbar-actions { display: flex; gap: 8px; }

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  position: relative;
  z-index: 1;
}
.login-card {
  width: min(420px, 100%);
  background: linear-gradient(160deg, rgba(255,255,255,.04), transparent 40%), var(--panel);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px 22px;
  box-shadow: var(--shadow);
  animation: rise .45s ease both;
}
.login-card h1 {
  font-family: var(--font-display);
  font-size: 2.4rem;
  margin: 18px 0 6px;
  letter-spacing: .03em;
}
.login-form { display: grid; gap: 12px; margin-top: 18px; }
.login-form label { display: grid; gap: 6px; color: var(--muted); font-size: .8rem; font-weight: 700; }
.login-form input {
  border: 1px solid var(--line);
  background: #0d1117;
  color: var(--text);
  border-radius: 12px;
  padding: 14px 12px;
  font: inherit;
  font-size: 1.05rem;
}
.login-error { color: #ffb4ae !important; margin-top: 12px; }

.lifter-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}
.lifter-toggle button {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  border-radius: 14px;
  padding: 12px 10px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}
.lifter-toggle button.active {
  border-color: var(--accent, var(--copper));
  background: color-mix(in srgb, var(--accent, var(--copper)) 18%, var(--panel));
}
.brand {
  margin: 0; font-family: var(--font-display); font-size: clamp(2.4rem, 10vw, 3.4rem);
  letter-spacing: .04em; line-height: .9;
  background: linear-gradient(90deg, var(--copper-2), #fff3d8 45%, var(--teal));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand-sub { margin: 4px 0 0; color: var(--muted); font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; }
.hero-copy h1 { font-family: var(--font-display); font-size: clamp(2.6rem, 11vw, 4rem); margin: 8px 0 6px; letter-spacing: .02em; line-height: .95; }
.hero-copy p, .muted { color: var(--muted); }
.eyebrow { margin: 0; color: var(--copper); text-transform: uppercase; letter-spacing: .14em; font-size: .72rem; font-weight: 700; }
.user-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 22px 0 18px; }
.user-card {
  overflow: hidden; border: 1px solid var(--line); background: linear-gradient(160deg, rgba(255,255,255,.04), transparent 40%), var(--panel);
  border-radius: var(--radius); padding: 18px 16px 16px; text-align: left; color: inherit; cursor: pointer;
  box-shadow: var(--shadow); transition: transform .18s ease, border-color .18s ease; animation: rise .55s ease both;
}
.user-card:nth-child(2) { animation-delay: .06s; }
.user-card:active { transform: scale(.98); }
.user-card.active { border-color: color-mix(in srgb, var(--accent, var(--copper)) 70%, white); }
.user-card .name { font-family: var(--font-display); font-size: 2rem; margin: 0; letter-spacing: .03em; }
.user-card .meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px; background: rgba(255,255,255,.06); font-size: .75rem; font-weight: 700; }
.xp-bar { margin-top: 14px; height: 8px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden; }
.xp-bar > span { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--accent, var(--copper)), #fff1cf); transition: width .5s ease; }
.day-strip { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; margin-top: 8px; }
.day-chip {
  border: 1px solid var(--line); background: var(--panel); color: var(--text); border-radius: 14px; padding: 12px 8px;
  text-align: center; cursor: pointer; transition: transform .15s ease, border-color .15s ease; animation: rise .5s ease both;
}
.day-chip strong { display: block; font-family: var(--font-display); font-size: 1.35rem; letter-spacing: .03em; }
.day-chip span { display: block; color: var(--muted); font-size: .68rem; margin-top: 2px; }
.day-chip.active { border-color: var(--day-accent, var(--copper)); background: color-mix(in srgb, var(--day-accent, var(--copper)) 16%, var(--panel)); }
.day-chip:disabled { opacity: .45; cursor: not-allowed; }
.workout-head { display: grid; gap: 10px; margin-bottom: 14px; }
.workout-head h2 { margin: 2px 0; font-family: var(--font-display); font-size: clamp(2rem, 8vw, 2.8rem); letter-spacing: .03em; }
.player-chip { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 14px; border-radius: 14px; background: var(--panel); border: 1px solid var(--line); margin-bottom: 14px; }
.exercise-card { background: linear-gradient(180deg, var(--panel-2), var(--panel)); border: 1px solid var(--line); border-radius: 20px; padding: 16px; margin-bottom: 14px; box-shadow: var(--shadow); }
.exercise-list.is-first-paint .exercise-card { animation: rise .45s ease both; }
.exercise-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.exercise-top h3 { margin: 0; font-size: 1.05rem; line-height: 1.25; }
.ex-meta { margin: 4px 0 0; color: var(--muted); font-size: .82rem; }
.last-time { margin-top: 10px; padding: 10px 12px; border-radius: 12px; background: rgba(61,189,181,.08); border: 1px dashed rgba(61,189,181,.28); color: #b7eae6; font-size: .82rem; }
.set-table { width: 100%; margin-top: 12px; border-collapse: separate; border-spacing: 0 8px; }
.set-table th { text-align: left; color: var(--muted); font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; padding: 0 6px; }
.set-table td { padding: 0 4px; vertical-align: middle; }
.set-table input { width: 100%; min-width: 0; border: 1px solid var(--line); background: #0d1117; color: var(--text); border-radius: 12px; padding: 12px 10px; font: inherit; font-weight: 700; font-size: 1rem; }
.set-table input:focus { outline: 2px solid color-mix(in srgb, var(--copper) 60%, transparent); border-color: transparent; }
.check-btn, .icon-btn, .btn, .text-btn, .day-chip, .user-card { font: inherit; }
.check-btn { width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line); background: #0d1117; color: var(--muted); cursor: pointer; }
.check-btn.on { background: color-mix(in srgb, var(--ok) 22%, #0d1117); border-color: var(--ok); color: var(--ok); }
.ex-actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.btn { border: 0; border-radius: 14px; padding: 13px 16px; font-weight: 800; cursor: pointer; transition: transform .15s ease; }
.btn:active { transform: scale(.98); }
.btn.primary { width: 100%; background: linear-gradient(90deg, var(--copper), #ffd48a); color: #1a1206; box-shadow: 0 10px 30px rgba(232,165,75,.28); }
.btn.secondary { background: rgba(255,255,255,.08); color: var(--text); border: 1px solid var(--line); }
.btn.ghost { background: transparent; color: var(--copper-2); border: 1px solid rgba(232,165,75,.35); }
.btn.small { padding: 10px 12px; font-size: .84rem; }
.text-btn { background: none; border: 0; color: var(--copper-2); padding: 0; cursor: pointer; font-weight: 700; }
.icon-btn { width: 44px; height: 44px; border-radius: 14px; border: 1px solid var(--line); background: var(--panel); color: var(--text); cursor: pointer; }
.date-field { display: grid; gap: 6px; color: var(--muted); font-size: .78rem; font-weight: 700; }
.date-field input { border: 1px solid var(--line); background: var(--panel); color: var(--text); border-radius: 12px; padding: 10px 12px; font: inherit; }
.sticky-footer { position: fixed; left: 0; right: 0; bottom: 0; padding: 14px 16px calc(14px + var(--safe-bottom)); background: linear-gradient(180deg, transparent, rgba(8,10,13,.92) 28%); z-index: 20; }
.sticky-footer .btn { max-width: 720px; margin: 0 auto; display: block; }
.chart-wrap { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 14px; margin-bottom: 14px; }
.history-list, #stats-board { display: grid; gap: 10px; }
.history-item, .stats-card, .badge-card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 14px; }
.stats-card h3 { margin: 0; font-family: var(--font-display); font-size: 2rem; letter-spacing: .03em; }
.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 12px; }
.stat { background: rgba(255,255,255,.04); border-radius: 12px; padding: 10px; text-align: center; }
.stat strong { display: block; font-size: 1.05rem; }
.stat span { color: var(--muted); font-size: .7rem; }
.section-title { margin: 22px 0 10px; font-family: var(--font-display); font-size: 1.6rem; letter-spacing: .04em; }
.badge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
.badge-card.locked { opacity: .45; filter: grayscale(.4); }
.badge-card .icon { font-size: 1.5rem; }
.badge-card h4 { margin: 8px 0 4px; font-size: .95rem; }
.badge-card p { margin: 0; color: var(--muted); font-size: .78rem; }
.modal { border: 0; padding: 0; background: transparent; width: min(920px, calc(100vw - 24px)); max-width: 100%; }
.modal::backdrop { background: rgba(0,0,0,.72); backdrop-filter: blur(4px); }
.modal-inner { background: #141820; border: 1px solid var(--line); border-radius: 20px; padding: 14px; box-shadow: var(--shadow); }
.modal-inner header { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.modal-inner h3 { margin: 0; font-size: 1.1rem; }
.video-frame { position: relative; width: 100%; aspect-ratio: 16 / 9; border-radius: 14px; overflow: hidden; background: #000; }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.toast-stack { position: fixed; top: 14px; left: 50%; transform: translateX(-50%); width: min(420px, calc(100vw - 24px)); z-index: 50; display: grid; gap: 8px; pointer-events: none; }
.toast { background: #1b222d; border: 1px solid rgba(232,165,75,.35); color: var(--text); border-radius: 14px; padding: 12px 14px; box-shadow: var(--shadow); animation: toast-in .28s ease both; font-weight: 700; }
.toast.xp { border-color: rgba(111,207,151,.45); }
.toast.badge { border-color: rgba(61,189,181,.45); }
.toast.pr { border-color: rgba(240,113,103,.5); }
.pr-tag { display: inline-block; margin-left: 6px; padding: 2px 7px; border-radius: 999px; background: rgba(240,113,103,.18); color: #ffb4ae; font-size: .68rem; font-weight: 800; }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes toast-in { from { opacity: 0; transform: translateY(-8px) scale(.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
@media (max-width: 420px) {
  .day-strip { grid-template-columns: repeat(3, 1fr); }
  .stats-row { grid-template-columns: 1fr; }
}