:root {
  --bg: #1c1b19;
  --surface: #242220;
  --text: #ede7dd;
  --muted: #a39c8e;
  --accent: #c1442c;
  --accent-2: #7c8b7a;
  --rule: #3a3733;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Source Sans 3", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 17px;
  line-height: 1.4;
  /* keeps content clear of the iPhone notch and home indicator */
  padding: env(safe-area-inset-top) env(safe-area-inset-right)
           env(safe-area-inset-bottom) env(safe-area-inset-left);
}

header { padding: 16px 16px 0; }

h1 {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.5px;
  color: var(--accent);
}

h2 {
  font-size: 15px;
  text-transform: none;
  letter-spacing: 1.2px;
  font-weight: 600;
  color: var(--accent);
  margin: 24px 0 8px;
}

nav {
  display: flex;
  border-bottom: 1px solid var(--rule);
  margin-top: 12px;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

nav button {
  flex: 1;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  padding: 14px 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1.2px;
}

nav button.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

main { padding: 0 16px 64px; }

.tab { display: none; }
.tab.active { display: block; }

.card {
  background: var(--surface);
  border-radius: 12px;
  padding: 16px;
  margin: 8px 0;
}

.hidden { display: none !important; }

label {
  display: block;
  font-size: 13px;
  letter-spacing: 1.2px;
  font-weight: 600;
  color: var(--muted);
  margin: 14px 0 6px;
}

input[type=text], input[type=number] {
  width: 100%;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 8px;
  color: var(--text);
  font-size: 17px;   /* 16px or larger stops iOS zooming on focus */
  font-family: inherit;
}

button {
  background: var(--accent);
  color: #f7f1e8;
  border: none;
  border-radius: 999px;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
}

button.ghost {
  background: none;
  border: 1px solid var(--rule);
  color: var(--text);
}

button.wide { display: block; width: 100%; margin-top: 12px; }

button:disabled { opacity: 0.4; }

.row { display: flex; gap: 12px; margin-top: 12px; }
.row > div { flex: 1; }
.row > button { flex: 1; }

.chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}

.chip {
  white-space: nowrap;
  background: none;
  border: 1px solid var(--rule);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 14px;
}

.chip.on { background: var(--accent); border-color: var(--accent); color: #f7f1e8; }

.datenav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 16px 0 8px;
}

.datenav span { font-size: 22px; font-weight: 700; }
.datenav button { background: none; color: var(--accent); padding: 8px; }
.datenav button:disabled { color: var(--muted); }

.statline {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
}

.muted { color: var(--muted); font-size: 15px; margin: 4px 0; }
/* A meal row is a label and the meal it names, not two things pushed to
   opposite edges. `.statline`'s space-between is right for a stat and its
   number on a phone; here, on anything wider, it left a third of the card
   empty between "Lunch" and the recipe sitting in it. A fixed label column
   keeps them adjacent at every width. */
.planrow {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 12px;
  align-items: start;
}

/* Name, calories and the two buttons read as one line once there is room for
   one, and wrap back to a stack when there isn't. */
.planmeal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 2px 0;
}

.planmeal .muted { margin: 0; }


.big { font-size: 24px; font-weight: 700; }

.bar-track {
  height: 4px;
  background: var(--rule);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 6px;
}

.bar-fill { height: 4px; border-radius: 2px; background: var(--accent-2); }
.bar-fill.over { background: var(--accent); }

.entry {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
}

.entry > div { flex: 1; }

.entry .x {
  background: none;
  color: var(--accent);
  padding: 6px 10px;
  font-size: 18px;
}

.mealhead {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
  font-size: 13px;
  letter-spacing: 1.2px;
  font-weight: 600;
  color: var(--accent);
}

canvas { width: 100%; display: block; }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
  font-size: 14px;
  color: var(--muted);
}

.legend span { display: flex; align-items: center; gap: 5px; }
.legend i { width: 10px; height: 10px; border-radius: 2px; display: inline-block; }

.result {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--rule);
}

.result:last-child { border-bottom: none; }

.exercise { border-top: 1px solid var(--rule); padding-top: 12px; margin-top: 12px; }
.exercise h3 { margin: 0 0 2px; font-size: 17px; }

#watch-scan-video {
  width: 100%;
  border-radius: 8px;
  background: #000;
}