:root {
  color-scheme: light;
  --bg: #f7f7f5;
  --card: #ffffff;
  --text: #121212;
  --muted: #6d7072;
  --red: #a80f14;
  --red-strong: #d0181f;
  --red-soft: #fff3f3;
  --red-line: #e8b9bb;
  --steel: #d9dbd8;
  --graphite: #1c1c1c;
  --orange: #9a3412;
  --line: #e5e5e0;
  --shadow: 0 18px 44px rgba(18, 18, 18, 0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(168, 15, 20, 0.15), transparent 28%),
    radial-gradient(circle at top right, rgba(18, 18, 18, 0.07), transparent 30%),
    var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
main { max-width: 680px; margin: auto; padding: 22px 16px 72px; }
header { display: flex; justify-content: space-between; align-items: center; gap: 14px; }
h1 { font-size: 36px; margin: 0 0 18px; letter-spacing: -0.04em; }
h2 { font-size: 19px; margin: 0 0 16px; letter-spacing: -0.02em; }
.eyebrow { color: var(--red); margin: 0; font-weight: 800; }
button {
  border: 0;
  border-radius: 14px;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--graphite), var(--red));
  color: #fff;
  font-weight: 850;
  box-shadow: 0 10px 22px rgba(168, 15, 20, 0.2);
}
button:disabled { opacity: 0.45; box-shadow: none; }
button.secondary {
  width: 100%;
  margin-top: 12px;
  background: #fff;
  color: var(--red);
  border: 1px solid var(--red-line);
  box-shadow: none;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 18px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(var(--graphite), var(--red-strong));
}
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.section-head small, .hint { color: var(--muted); }
.day-nav {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  padding: 10px;
}
.day-nav button { padding: 9px 15px; }
.day-nav input { text-align: center; padding: 9px; }
.energy {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 18px;
}
.section-label { color: var(--muted); font-size: 13px; }
.energy-intake strong {
  display: block;
  margin-top: 8px;
  font-size: 32px;
  color: var(--red);
}
.energy-intake small { color: var(--muted); }
.energy-spending > div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 5px 0;
  color: var(--muted);
}
.energy-spending > div strong { color: var(--text); }
.energy-spending .energy-total {
  border-top: 1px solid var(--line);
  margin-top: 5px;
  padding-top: 10px;
}
.energy-balance {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}
.energy-balance > span { color: var(--muted); }
.energy-balance strong { font-size: 28px; color: var(--red); }
.energy-balance small {
  grid-column: 1 / -1;
  color: var(--muted);
  margin-top: 5px;
}
.energy-balance.surplus strong { color: var(--orange); }
.macros { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.macros span, .activity span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}
.macros strong { display: block; margin: 5px 0 8px; }
progress { width: 100%; height: 7px; accent-color: var(--red); }
.activity { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.activity div { text-align: center; }
input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px;
  background: #fff;
  color: var(--text);
  font-size: 16px;
  outline-color: var(--red);
}
.add-row { display: grid; grid-template-columns: 1fr 1.4fr; gap: 10px; margin-top: 10px; }
.custom-product {
  display: grid;
  gap: 10px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.hidden { display: none; }
.nutrition-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
label { color: var(--muted); font-size: 12px; }
label input { margin-top: 5px; }
.product {
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}
.product small {
  display: block;
  color: var(--muted);
  margin-top: 3px;
}
.product.selected { color: var(--red); font-weight: 800; }
.entry {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.entry:last-child { border: 0; }
.entry small { color: var(--muted); display: block; margin-top: 3px; }
.delete { background: transparent; color: var(--red); padding: 7px; box-shadow: none; }
.empty { color: var(--muted); }
.supplements {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.supplement {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(135deg, #fff, var(--red-soft));
  color: var(--text);
  font-size: 15px;
}
.supplement input {
  width: 20px;
  height: 20px;
  accent-color: var(--red);
  margin: 0;
}
.period-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}
.metric {
  padding: 12px;
  border-radius: 18px;
  background: linear-gradient(135deg, #fff, var(--red-soft));
  border: 1px solid var(--red-line);
}
.metric span, .metric small {
  display: block;
  color: var(--muted);
  font-size: 12px;
}
.metric strong {
  display: block;
  margin: 5px 0;
  color: var(--graphite);
  font-size: 18px;
}
.range-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.balance-chart {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}
.bar-row {
  display: grid;
  grid-template-columns: 48px 1fr 72px;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}
.bar-row strong {
  text-align: right;
  color: var(--text);
}
.bar-track {
  height: 10px;
  border-radius: 999px;
  background: var(--steel);
  overflow: hidden;
}
.bar-track i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--graphite), var(--red-strong));
}
.bar-row.surplus .bar-track i { background: var(--orange); }
@media (max-width: 480px) {
  .energy, .period-summary { grid-template-columns: 1fr; }
  .energy-balance { grid-column: auto; }
  .supplements { grid-template-columns: 1fr; }
  .range-grid { grid-template-columns: 1fr; }
}