:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #14141f;
  --bg-tertiary: #1e1e2e;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --text-muted: #606070;
  --accent: #00d4ff;
  --accent-secondary: #00ff88;
  --accent-sleep: #8a8cff;
  --danger: #ff4466;
  --focus-ring: #00d4ff;
  --focus-glow: rgba(0, 212, 255, 0.4);
  --radius-md: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  width: 600px; height: 600px; overflow: hidden;
  background: #000;
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-variant-numeric: tabular-nums;
}

#app { width: 100%; height: 100%; position: relative; }

.screen {
  width: 100%; height: 100%;
  position: absolute; top: 0; left: 0;
  display: flex; flex-direction: column;
}
.screen.hidden { display: none; }
.hidden { display: none !important; }

.focusable {
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  border: 2px solid transparent;
  cursor: pointer;
  outline: none;
}
.focusable:focus {
  border-color: var(--focus-ring);
  box-shadow: 0 0 20px var(--focus-glow);
}

/* ---------- header ---------- */
.hdr {
  display: flex; align-items: center; gap: 12px;
  padding: 20px 24px;
  background: linear-gradient(180deg, var(--bg-secondary), var(--bg-primary));
  border-bottom: 1px solid var(--bg-tertiary);
}
.hdr-icon { font-size: 30px; line-height: 1; }
.hdr h1 { font-size: 28px; font-weight: 700; letter-spacing: 0.2px; }

/* ---------- footer hint ---------- */
.hint {
  margin-top: auto;
  padding: 14px 24px;
  font-size: 15px;
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.3px;
}

/* ---------- home menu ---------- */
.menu {
  display: flex; flex-direction: column; gap: 12px;
  padding: 20px 24px 8px;
}
.card {
  display: flex; align-items: center; gap: 16px;
  min-height: 88px;
  padding: 14px 18px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  text-align: left;
}
.card-ic { font-size: 32px; width: 40px; text-align: center; line-height: 1; }
.card-txt { display: flex; flex-direction: column; gap: 3px; }
.card-t { font-size: 23px; font-weight: 600; color: var(--text-primary); }
.card-s { font-size: 16px; color: var(--text-secondary); }

/* ---------- picker ---------- */
.picker-body {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 40px;
}
.time-fields { display: flex; align-items: center; gap: 14px; }
.field {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  min-width: 150px; min-height: 180px;
  padding: 16px 10px;
  background: var(--bg-tertiary);
  border-radius: 16px;
}
.field-arrow { font-size: 22px; color: var(--accent); line-height: 1; }
.field-val {
  font-size: 78px; font-weight: 700; line-height: 1.1;
  color: var(--text-primary);
}
.field-lbl {
  margin-top: 6px;
  font-size: 16px; color: var(--text-secondary);
  text-transform: uppercase; letter-spacing: 1px;
}
.colon { font-size: 64px; font-weight: 700; color: var(--text-muted); }

.btn-primary {
  min-width: 240px; min-height: 64px;
  padding: 0 32px;
  font-size: 22px; font-weight: 700;
  color: #04121a;
  background: var(--accent);
  border-radius: var(--radius-md);
}
.btn-primary.focusable:focus { background: var(--accent-secondary); }

.btn-secondary {
  flex: 1;
  min-height: 64px;
  padding: 0 24px;
  font-size: 20px; font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
}

/* ---------- results ---------- */
.res-sub {
  padding: 14px 24px 4px;
  font-size: 17px; color: var(--text-secondary);
  text-align: center;
}
.res-list {
  display: flex; flex-direction: column; gap: 10px;
  padding: 12px 24px;
}
.res-row {
  display: flex; align-items: center; gap: 14px;
  min-height: 68px;
  padding: 10px 18px;
  background: var(--bg-secondary);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
}
.res-row.reco {
  border-color: rgba(0, 255, 136, 0.45);
  background: linear-gradient(90deg, rgba(0, 255, 136, 0.08), var(--bg-secondary));
}
.res-time {
  font-size: 36px; font-weight: 700; color: var(--accent);
  min-width: 150px;
}
.res-row.reco .res-time { color: var(--accent-secondary); }
.res-meta { display: flex; flex-direction: column; gap: 2px; }
.res-cyc { font-size: 19px; font-weight: 600; color: var(--text-primary); }
.res-dur { font-size: 15px; color: var(--text-secondary); }
.res-badge {
  margin-left: auto;
  padding: 6px 14px;
  font-size: 14px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.5px;
  color: #04140b;
  background: var(--accent-secondary);
  border-radius: 999px;
}
.res-actions {
  display: flex; gap: 12px;
  padding: 8px 24px 0;
}

/* ---------- settings ---------- */
.set-body {
  display: flex; flex-direction: column; gap: 14px;
  padding: 24px;
  flex: 1;
}
.set-row {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 72px;
  padding: 14px 20px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
}
.set-lbl { font-size: 21px; font-weight: 600; }
.set-val { font-size: 21px; font-weight: 700; color: var(--accent); }
.set-body .btn-secondary { flex: none; margin-top: 6px; }