:root {
  --arc-bg0: #0b1220;
  --arc-bg1: #152238;
  --arc-panel: rgba(18, 28, 44, 0.92);
  --arc-line: rgba(180, 200, 230, 0.14);
  --arc-text: #e7eef8;
  --arc-muted: #9aafc7;
  --arc-accent: #7eb6ff;
  --arc-warm: #e0b07a;
  --arc-ok: #7dcea0;
  --arc-warn: #e8a87c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--arc-text);
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(90, 130, 200, 0.22), transparent 60%),
    radial-gradient(900px 400px at 90% 0%, rgba(180, 130, 80, 0.12), transparent 55%),
    linear-gradient(165deg, var(--arc-bg0), var(--arc-bg1) 55%, #0e1828);
  font-family: "Segoe UI", "IBM Plex Sans", sans-serif;
}

.arc-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem 1.1rem 3rem;
}

.arc-top {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.eyebrow {
  margin: 0;
  color: var(--arc-warm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.arc-top h1 {
  margin: 0.2rem 0;
  font-size: 1.85rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.day-line {
  margin: 0;
  color: var(--arc-muted);
  font-size: 0.95rem;
}

.top-links a {
  color: var(--arc-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.top-links a:hover { border-bottom-color: var(--arc-accent); }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.day-switch, .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.day-switch button,
.actions button {
  margin: 0;
  width: auto;
  border-radius: 0.4rem;
  border: 1px solid var(--arc-line);
  background: rgba(255,255,255,0.04);
  color: var(--arc-text);
  padding: 0.45rem 0.85rem;
}

.day-switch button.active,
.actions button.primary {
  background: var(--arc-accent);
  color: #0b1220;
  border-color: var(--arc-accent);
}

.actions button:disabled { opacity: 0.55; }

.status { color: var(--arc-muted); font-size: 0.9rem; margin: 0.25rem 0 0.75rem; }
.errors { color: var(--arc-warn); font-size: 0.88rem; display: grid; gap: 0.2rem; }

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}

.card {
  background: var(--arc-panel);
  border: 1px solid var(--arc-line);
  border-radius: 0.7rem;
  padding: 0.95rem 1rem 1.1rem;
}

.card.wide { grid-column: 1 / -1; }

.card header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.7rem;
}

.card h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
}

.card header small,
.hint,
.empty {
  color: var(--arc-muted);
  font-size: 0.8rem;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  margin-bottom: 0.7rem;
}

.kpi-row.three { grid-template-columns: repeat(3, 1fr); }

.label {
  margin: 0;
  font-size: 0.75rem;
  color: var(--arc-muted);
}

.value {
  margin: 0.1rem 0;
  font-size: 1.55rem;
  font-weight: 650;
}

.value.sm { font-size: 1.15rem; }

.analysis {
  margin: 0 0 0.75rem;
  line-height: 1.45;
  font-size: 0.92rem;
}

.meal {
  border-top: 1px solid var(--arc-line);
  padding: 0.45rem 0;
}

.meal summary {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
}

.meal ul {
  margin: 0.4rem 0 0;
  padding-left: 1.1rem;
  color: var(--arc-muted);
  font-size: 0.88rem;
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  margin: 0.35rem 0;
  color: var(--arc-text);
}

.check input { width: auto; margin-top: 0.2rem; }
.check small { color: var(--arc-ok); margin-left: auto; }

label {
  display: grid;
  gap: 0.3rem;
  margin-bottom: 0.7rem;
  color: var(--arc-muted);
  font-size: 0.85rem;
}

input[type="text"],
textarea,
select {
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--arc-line);
  color: var(--arc-text);
  border-radius: 0.4rem;
}

table {
  width: 100%;
  font-size: 0.88rem;
}

th, td {
  padding: 0.35rem 0.3rem;
  border-bottom: 1px solid var(--arc-line);
  vertical-align: top;
}

@media (max-width: 820px) {
  .grid, .kpi-row, .kpi-row.three { grid-template-columns: 1fr; }
  .card.wide { grid-column: auto; }
}