/* Kinetic Obsidian design system, see DESIGN.md. Dark only: obsidian surfaces
   with Electric Lime for actions and completed days, Hyper Cyan for targets
   and aerobic work, High-Voltage Amber for max-effort work. */
:root {
  --bg: #0d0f12;          /* Level 0 canvas */
  --surface: #171b21;     /* Level 1 cards */
  --surface-2: #1e232b;   /* Level 2 insets, modals */
  --input: #13171d;
  --text: #ffffff;
  --muted: #94a3b8;       /* Cool Steel */
  --disabled: #475569;    /* Slate Muted */
  --border: rgb(255 255 255 / 0.06);
  --hairline: #282f3a;
  --accent: #d4ff00;      /* Electric Lime */
  --accent-contrast: #000000;
  --accent-soft: rgb(212 255 0 / 0.12);
  --cyan: #00f0ff;
  --amber: #ffb800;
  --danger: #ffb4ab;
  --heat-0: #1e232b;     /* spec says #171B21, but that matches the card and vanishes */
  --heat-1: #a3e635;
  --heat-2: #d4ff00;
  --glow: 0 0 24px -2px rgb(212 255 0 / 0.28);
  --glow-strong: 0 0 20px rgb(212 255 0 / 0.4);
  --shadow-2: 0 8px 32px -4px rgb(0 0 0 / 0.6);
  --radius-md: 8px;
  --radius: 16px;
  --radius-xl: 24px;
  --pill: 9999px;
  --font: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

button, select, textarea, input { font: inherit; color: inherit; }

:focus-visible { outline: 1.5px solid var(--accent); outline-offset: 2px; }

.app {
  max-width: 560px;
  margin: 0 auto;
  padding: calc(16px + env(safe-area-inset-top)) 16px calc(24px + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.top { display: flex; align-items: center; justify-content: space-between; }
h1 { margin: 0; font-size: 1.6rem; font-weight: 800; letter-spacing: -0.03em; }
/* Card titles use label-caps. */
h2 {
  margin: 0 0 12px;
  font-size: 11px;
  line-height: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
h3 { margin: 0 0 16px; font-size: 20px; line-height: 26px; font-weight: 600; letter-spacing: -0.01em; }
.today-label {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Quick-log stepper style: 44px pills in Slate Active. */
.icon-btn {
  width: 44px; height: 44px;
  border: 0;
  border-radius: var(--pill);
  background: var(--surface-2);
  color: var(--text);
  display: grid; place-items: center;
  font-size: 1.4rem; line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease;
}
.icon-btn:hover { background: var(--hairline); }
.icon-btn:disabled { color: var(--disabled); cursor: not-allowed; background: var(--surface); }

.log-today {
  border: 0;
  border-radius: var(--pill);
  padding: 18px;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  background: var(--accent);
  color: var(--accent-contrast);
  box-shadow: var(--glow);
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.2s ease;
}
.log-today:hover { box-shadow: var(--glow-strong); }
.log-today:active { transform: scale(0.98); box-shadow: var(--glow-strong); }
.log-today.done {
  background: var(--surface);
  color: var(--accent);
  box-shadow: inset 0 0 0 1.5px var(--accent);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
@media (min-width: 480px) { .stats { grid-template-columns: repeat(3, 1fr); } }

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex; flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.stat-value {
  font-size: 32px;
  line-height: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.stat.hero .stat-value { color: var(--accent); }
.stat-label {
  color: var(--muted);
  font-size: 11px;
  line-height: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.goal-bar { margin-top: 8px; height: 6px; border-radius: var(--pill); background: var(--surface-2); overflow: hidden; }
.goal-bar > div {
  height: 100%; width: 0;
  border-radius: var(--pill);
  background: linear-gradient(90deg, var(--cyan), var(--accent));
  transition: width 0.25s ease;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.cal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.cal-head h2 { margin: 0; color: var(--text); font-size: 13px; }

.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.weekdays {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 4px;
}

.day {
  aspect-ratio: 1;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--surface-2);
  display: grid; place-items: center;
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  transition: background 0.15s ease;
}
.day:hover:not(.empty):not(.future):not(.active) { background: var(--hairline); }
.day.empty { background: transparent; cursor: default; }
.day.active { background: var(--accent); color: var(--accent-contrast); font-weight: 800; box-shadow: var(--glow); }
.day.today { box-shadow: inset 0 0 0 1.5px var(--accent); color: var(--accent); font-weight: 700; }
.day.active.today { color: var(--accent-contrast); box-shadow: inset 0 0 0 2px var(--accent-contrast), var(--glow); }
.day.future { color: var(--disabled); background: transparent; cursor: not-allowed; }

.hint { margin: 12px 0 0; color: var(--muted); font-size: 12px; line-height: 16px; letter-spacing: 0.02em; text-align: center; }

.heatmap {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(7, 1fr);
  gap: 3px;
  overflow-x: auto;
}
.heatmap .cell { width: 100%; min-width: 10px; aspect-ratio: 1; border-radius: 2px; background: var(--heat-0); }
.heatmap .cell.on { background: var(--heat-1); }
.heatmap .cell.on[data-level="2"] { background: var(--heat-2); }
.heatmap .cell.pad { background: transparent; }

/* Workout intensity tags: a 6px status dot per type. */
.breakdown { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.breakdown span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface-2);
  border-radius: var(--pill);
  padding: 6px 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}
.breakdown span::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--muted);
}
.breakdown [data-type="Strength"]::before { background: var(--accent); }
.breakdown [data-type="Cardio"]::before,
.breakdown [data-type="Sports"]::before { background: var(--cyan); }
.breakdown [data-type="HIIT"]::before { background: var(--amber); }

.footer-note { color: var(--muted); font-size: 12px; line-height: 16px; text-align: center; margin: 0; }

/* Dialogs render as bottom sheets on phones and centered cards on larger screens. */
.sheet {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface-2);
  color: var(--text);
  box-shadow: var(--shadow-2);
  padding: 20px;
  width: min(480px, calc(100vw - 24px));
  max-height: 90vh;
}
.sheet::backdrop { background: rgb(13 15 18 / 0.75); backdrop-filter: blur(4px); }
@media (max-width: 600px) {
  .sheet {
    margin: auto auto 0;
    width: 100%;
    max-width: 100%;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding-bottom: calc(20px + env(safe-area-inset-bottom));
  }
}

.chips { border: 0; padding: 0; margin: 0 0 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.chips legend {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
  padding: 0;
}
.chip {
  border: 1.5px solid var(--hairline);
  background: transparent;
  border-radius: var(--pill);
  padding: 8px 16px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s ease, box-shadow 0.2s ease;
}
.chip:hover { background: var(--surface); }
.chip[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
  box-shadow: var(--glow);
}

.field {
  display: flex; flex-direction: column; gap: 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.field textarea, .field select, #profileNameInput {
  color: var(--text);
  background: var(--input);
  border: 1.5px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  resize: vertical;
}
.field textarea:focus, .field select:focus, #profileNameInput:focus {
  outline: none;
  border-color: var(--accent);
}
.field textarea::placeholder { color: var(--disabled); }
.row { display: flex; gap: 8px; }

.actions { display: flex; gap: 8px; align-items: center; }
.spacer { flex: 1; }
.btn {
  border: 1.5px solid var(--hairline);
  background: transparent;
  color: var(--text);
  border-radius: var(--pill);
  padding: 10px 18px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  cursor: pointer;
  transition: background 0.15s ease, box-shadow 0.2s ease;
}
.btn:hover { background: var(--surface); }
.btn:active { background: var(--surface-2); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
  font-weight: 800;
}
.btn.primary:hover, .btn.primary:active { box-shadow: var(--glow-strong); }
.btn.danger { color: var(--danger); border-color: transparent; }
.btn.danger:hover { background: rgb(255 180 171 / 0.08); }
.btn[hidden] { display: none; }

.toast {
  position: fixed;
  inset: auto;
  margin: 0;
  border: 1px solid var(--border);
  overflow: visible;
  width: max-content;
  max-width: calc(100vw - 32px);
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom));
  transform: translate(-50%, 20px);
  background: var(--surface-2);
  color: var(--text);
  box-shadow: var(--shadow-2);
  padding: 10px 18px;
  border-radius: var(--pill);
  font-size: 0.9rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.legend-hint { opacity: 0.8; text-transform: none; letter-spacing: 0.02em; font-weight: 500; }
.btn.primary:disabled { opacity: 0.35; box-shadow: none; cursor: not-allowed; }
.storage-info {
  margin: 0;
  color: var(--text);
  font-size: 14px;
  line-height: 20px;
  font-weight: 400;
  letter-spacing: 0.01em;
  text-transform: none;
}

.signin {
  min-height: 100dvh;
  max-width: 400px;
  margin: 0 auto;
  padding: calc(24px + env(safe-area-inset-top)) 24px calc(24px + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  text-align: center;
}
.signin[hidden], .app[hidden], .field[hidden] { display: none; }
.signin img { border-radius: 20px; box-shadow: 0 0 48px -4px rgb(212 255 0 / 0.35); }
.signin p { margin: 0; color: var(--muted); }
.btn.google {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 16px;
  background: var(--surface);
  font-weight: 700;
}
.btn.google:hover { background: var(--surface-2); }
.btn.google:disabled { opacity: 0.6; cursor: progress; }
.signin-error { color: var(--danger) !important; font-size: 0.9rem; }

.top-actions { display: flex; align-items: center; gap: 8px; }
.account-btn {
  height: 44px;
  min-width: 44px;
  padding: 0;
  border: 0;
  border-radius: var(--pill);
  background: var(--surface-2);
  cursor: pointer;
  overflow: hidden;
}
.account-btn[hidden] { display: none; }
.account-btn.signin-btn {
  padding: 0 16px;
  border: 1.5px solid var(--accent);
  background: transparent;
  color: var(--accent);
  font-weight: 700;
}
.avatar {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  border-radius: var(--pill);
  overflow: hidden;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 800;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.account-btn .avatar { width: 40px; height: 40px; margin: 2px; box-shadow: 0 0 0 1.5px var(--accent); }
.avatar.large { width: 64px; height: 64px; flex: none; font-size: 1.6rem; box-shadow: 0 0 0 2px var(--accent), var(--glow); }

.profile-head { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.profile-id { min-width: 0; }
.profile-id h3 { margin: 0; }
.profile-id p { margin: 2px 0 0; color: var(--muted); font-size: 0.875rem; overflow-wrap: anywhere; }
.profile-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 16px; }
.profile-stats > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 6px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  text-align: center;
}
.profile-stats .stat-value { font-size: 24px; line-height: 30px; }
.profile-stats > div:first-child .stat-value { color: var(--accent); }
#profileDialog .storage-info { color: var(--muted); margin-bottom: 16px; }

.link-btn { border: 0; background: none; color: var(--muted); text-decoration: underline; cursor: pointer; padding: 4px; }
.link-btn:hover { color: var(--text); }
.signin-hint { font-size: 12px; }

.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.card-head h2 { margin: 0; }
.btn.small { padding: 8px 16px; font-size: 0.875rem; }
.photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 8px; }
.photo-grid[hidden] { display: none; }
.photo-tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  text-align: left;
}
.photo-tile img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--surface-2);
  border: 1px solid var(--border);
  transition: box-shadow 0.2s ease;
}
.photo-tile:hover img { box-shadow: var(--glow); }
.photo-sheet { overflow-y: auto; }
.photo-preview {
  display: block;
  width: 100%;
  height: auto;
  max-height: 55vh;
  object-fit: contain;
  border-radius: var(--radius);
  background: #000;
  margin-bottom: 16px;
}
.photo-sheet .actions { flex-wrap: wrap; }
.photo-note { margin: 0 0 16px; text-align: left; }
.photo-stats { list-style: none; padding: 0; margin: 0 0 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.photo-stats[hidden] { display: none; }
.photo-stats li {
  background: var(--surface);
  border-radius: var(--pill);
  padding: 6px 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.photo-stats strong { color: var(--accent); font-variant-numeric: tabular-nums; }
.app-version { margin: 0; color: var(--muted); font-size: 12px; font-weight: 500; letter-spacing: 0.02em; text-transform: none; }
.brand { display: flex; align-items: center; }
.wordmark { display: block; width: auto; }
.brand .wordmark { height: 28px; }
.signin .wordmark { height: 40px; border-radius: 0; box-shadow: none; }

.detail-groups { display: flex; flex-direction: column; margin-bottom: 4px; }
.detail-group { margin-bottom: 12px; gap: 6px; }
.detail-group legend { color: var(--text); }
.chip.small { padding: 6px 12px; font-size: 0.85rem; }
#dayDialog { overflow-y: auto; }

#profileNameInput { flex: 1; min-width: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}