:root {
  color-scheme: dark;
  --bg: #0d1118;
  --panel: #151b24;
  --panel-2: #1c2430;
  --text: #eef3f7;
  --muted: #98a6b7;
  --line: #293442;
  --accent: #36d399;
  --accent-2: #58a6ff;
  --warn: #f7bd47;
  --danger: #ff6b6b;
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(54, 211, 153, .08), transparent 32%),
    linear-gradient(225deg, rgba(88, 166, 255, .08), transparent 34%),
    var(--bg);
  color: var(--text);
}
button, input, select { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }

.auth-screen {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
}
.auth-visual {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(160deg, rgba(19, 27, 37, .2), rgba(19, 27, 37, .9)),
    url("https://images.unsplash.com/photo-1534438327276-14e5300c3a48?auto=format&fit=crop&w=1400&q=80") center/cover;
}
.brand-lockup { display: flex; align-items: center; gap: 12px; }
.brand-lockup small { display: block; color: var(--muted); margin-top: 2px; }
.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #061017;
}
.rank-orbit {
  display: grid;
  gap: 12px;
  max-width: 360px;
  font-size: clamp(44px, 8vw, 86px);
  font-weight: 900;
  line-height: .92;
}
.rank-orbit span:nth-child(2) { color: var(--warn); }
.rank-orbit span:nth-child(3) { color: var(--accent); }
.auth-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(24px, 7vw, 80px);
  background: rgba(13, 17, 24, .82);
  backdrop-filter: blur(18px);
}
.auth-tabs { display: flex; gap: 8px; margin-bottom: 22px; }
.tab-button, .ghost, .tiny {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255,255,255,.03);
  border-radius: var(--radius);
  padding: 10px 14px;
}
.tab-button.active, .nav-item.active { background: rgba(54,211,153,.13); border-color: rgba(54,211,153,.5); color: var(--accent); }
.stack, .form-grid { display: grid; gap: 14px; }
label { display: grid; gap: 7px; color: var(--muted); font-size: 14px; }
input, select {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0f141d;
  color: var(--text);
  padding: 10px 12px;
  outline: none;
}
input:focus, select:focus { border-color: var(--accent); }
.primary {
  border: 0;
  border-radius: var(--radius);
  color: #05120d;
  background: var(--accent);
  font-weight: 800;
  padding: 12px 16px;
}
.wide { width: 100%; }
.form-message { min-height: 20px; color: var(--warn); }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: 272px 1fr; }
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  border-right: 1px solid var(--line);
  background: rgba(15, 20, 29, .92);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.compact .brand-mark { width: 38px; height: 38px; }
.nav-list { display: grid; gap: 8px; }
.nav-item {
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 11px 12px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  display: flex;
  align-items: center;
  gap: 10px;
}
.main { padding: 24px 28px 92px; min-width: 0; }
.topbar { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 24px; }
.topbar h1 { margin: 0; font-size: clamp(28px, 4vw, 42px); }
.top-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: 0; font-size: 12px; font-weight: 800; margin: 0 0 5px; }
.view { display: none; }
.view.active { display: block; }
.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 16px; }
.metric, .panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(21, 27, 36, .88);
  box-shadow: 0 18px 50px rgba(0,0,0,.2);
}
.metric { padding: 18px; display: grid; gap: 8px; min-height: 122px; }
.metric span, .hint, .metric small { color: var(--muted); }
.metric strong { font-size: 30px; }
.dashboard-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 16px; }
.panel { padding: 18px; }
.panel h2 { margin: 0 0 16px; font-size: 19px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.split { display: grid; grid-template-columns: minmax(280px, 420px) 1fr; gap: 16px; align-items: start; }
.day-list, .workout-list, .table-like, .timeline { display: grid; gap: 10px; }
.day-card, .row, .workout-card, .timeline-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: rgba(255,255,255,.025);
}
.day-card h3, .workout-card h3 { margin: 0 0 8px; }
.workout-card { display: grid; gap: 10px; }
.workout-meta { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); }
.inline-form { display: grid; grid-template-columns: 1fr 1fr 1fr auto; gap: 8px; }
.row { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.row small { color: var(--muted); }
.chart { min-height: 220px; display: flex; align-items: end; gap: 10px; padding-top: 18px; border-bottom: 1px solid var(--line); margin-bottom: 14px; }
.bar { flex: 1; min-width: 28px; background: linear-gradient(180deg, var(--accent-2), var(--accent)); border-radius: 6px 6px 0 0; display: flex; align-items: start; justify-content: center; color: #05120d; font-weight: 900; font-size: 12px; padding-top: 6px; }
.macro-bars { display: grid; gap: 12px; margin-bottom: 15px; }
.macro-line { display: grid; gap: 6px; }
.macro-line span { color: var(--muted); }
.macro-track { height: 10px; background: #0f141d; border-radius: 999px; overflow: hidden; }
.macro-track i { display: block; height: 100%; background: var(--accent); }
.rank-layout { display: grid; grid-template-columns: 360px 1fr; gap: 16px; }
.rank-panel { min-height: 260px; display: grid; align-items: center; background: linear-gradient(145deg, rgba(54,211,153,.18), rgba(88,166,255,.09)), var(--panel); }
.rank-panel h2 { font-size: 52px; margin-bottom: 18px; }
.rank-track { height: 14px; border-radius: 999px; background: #0f141d; overflow: hidden; }
.rank-track span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--warn)); transition: width .25s ease; }
.assistant-panel { max-width: 920px; }
.assistant-log { min-height: 420px; max-height: 58vh; overflow: auto; display: grid; align-content: start; gap: 12px; padding: 8px; }
.bubble { max-width: 78%; padding: 12px 14px; border-radius: var(--radius); background: var(--panel-2); }
.bubble.user { margin-left: auto; background: rgba(54,211,153,.14); }
.assistant-input { display: grid; grid-template-columns: 1fr auto; gap: 10px; margin-top: 12px; }
.command-list { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.command-list strong { width: 100%; }
.command-list span { border: 1px solid var(--line); border-radius: 999px; padding: 8px 11px; color: var(--muted); }
pre { overflow: auto; background: #0f141d; padding: 14px; border-radius: var(--radius); border: 1px solid var(--line); }
.mobile-nav { display: none; }

@media (max-width: 980px) {
  .auth-screen, .app-shell, .dashboard-grid, .split, .rank-layout { grid-template-columns: 1fr; }
  .auth-visual { min-height: 42vh; }
  .sidebar { display: none; }
  .main { padding: 18px 14px 94px; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .topbar { align-items: flex-start; flex-direction: column; }
  .mobile-nav {
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: 10px;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(15, 20, 29, .96);
    padding: 6px;
    z-index: 10;
  }
  .mobile-nav .nav-item { justify-content: center; text-align: center; padding: 8px 4px; gap: 2px; flex-direction: column; }
  .mobile-nav small { color: inherit; font-size: 11px; }
  .inline-form { grid-template-columns: 1fr 1fr; }
  .inline-form button { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .metric-grid { grid-template-columns: 1fr; }
  .auth-card { padding: 22px; }
  .rank-orbit { font-size: 40px; }
  .bubble { max-width: 94%; }
}