:root {
  --bg: #f6f5f1;
  --card: #ffffff;
  --input: #ffffff;
  --text: #1c1c1a;
  --muted: #6f6e68;
  --border: #e3e1da;
  --green: #1D9E75;
  --red: #E24B4A;
  --amber: #BA7517;
  --accent: #185FA5;
  --good-bg: #E1F5EE;
  --good-fg: #085041;
  --bad-bg: #FCEBEB;
  --bad-fg: #791F1F;
  --warn-bg: #FAEEDA;
  --warn-fg: #633806;
  --warn-border: #FAC775;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161614;
    --card: #1f1f1d;
    --input: #262624;
    --text: #ececea;
    --muted: #a09f98;
    --border: #34332e;
    --green: #5DCAA5;
    --red: #F09595;
    --amber: #FAC775;
    --accent: #85B7EB;
    --good-bg: #0e3b2c;
    --good-fg: #9FE1CB;
    --bad-bg: #471616;
    --bad-fg: #F7C1C1;
    --warn-bg: #3b2c0d;
    --warn-fg: #FAC775;
    --warn-border: #6b4e11;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  padding-bottom: 76px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 14px 16px 6px;
  max-width: 560px;
  margin: 0 auto;
}
header h1 { font-size: 18px; margin: 0; font-weight: 600; }
header .sub { font-size: 13px; color: var(--muted); }

main { max-width: 560px; margin: 0 auto; padding: 0 12px; }
section { display: none; }
section.active { display: block; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  margin: 10px 0;
}

h2 { font-size: 15px; margin: 0 0 10px; font-weight: 600; }

.hero { text-align: center; padding: 20px 16px; }
.hero .label { font-size: 13px; color: var(--muted); }
.hero .big { font-size: 40px; font-weight: 700; letter-spacing: -1px; margin: 2px 0; }
.hero .big.neg { color: var(--red); }
.hero .perday { font-size: 14px; color: var(--muted); margin-bottom: 10px; }

.pill {
  display: inline-block;
  font-size: 13px;
  padding: 4px 14px;
  border-radius: 999px;
  font-weight: 500;
}
.pill.good { background: var(--good-bg); color: var(--good-fg); }
.pill.bad { background: var(--bad-bg); color: var(--bad-fg); }

.chip {
  display: inline-block;
  font-size: 13px;
  padding: 3px 10px;
  border-radius: 999px;
  color: #fff;
}

.banner {
  display: block;
  background: var(--warn-bg);
  color: var(--warn-fg);
  border: 1px solid var(--warn-border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 14px;
  margin: 10px 0;
  cursor: pointer;
}

.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.row:last-child { border-bottom: none; }
.row .grow { flex: 1; min-width: 0; }
.row .sub { font-size: 12px; color: var(--muted); }
.row .amt { font-weight: 600; white-space: nowrap; }

.bar { height: 7px; background: var(--bg); border-radius: 4px; overflow: hidden; margin-top: 4px; }
.bar > div { height: 7px; border-radius: 4px; }

input, select, button, textarea {
  font: inherit;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  background: var(--input);
  color: var(--text);
  max-width: 100%;
}
input:focus, select:focus { outline: 2px solid var(--accent); border-color: transparent; }
label { font-size: 13px; color: var(--muted); display: block; margin: 8px 0 3px; }

button { cursor: pointer; }
button.primary { background: var(--text); color: var(--bg); border-color: var(--text); font-weight: 500; }
button.small { font-size: 13px; padding: 5px 10px; }
button.ghost { background: transparent; }
button.danger { color: var(--red); }

.formgrid { display: flex; flex-wrap: wrap; gap: 8px; }
.formgrid input, .formgrid select { flex: 1; min-width: 110px; }

.catpick { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.catpick button {
  border-radius: 999px;
  font-size: 13px;
  padding: 6px 12px;
  border: 1.5px solid var(--border);
  background: var(--input);
}
.catpick button.sel { color: #fff; border-color: transparent; }

.msg { font-size: 13px; margin-top: 6px; min-height: 18px; }
.msg.err { color: var(--red); }
.msg.ok { color: var(--green); }

nav.bottom {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--card);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-around;
  padding: 6px 0 max(6px, env(safe-area-inset-bottom));
  z-index: 10;
}
nav.bottom button {
  border: none; background: none;
  font-size: 11px; color: var(--muted);
  display: flex; flex-direction: column; align-items: center; gap: 1px;
  padding: 4px 10px;
}
nav.bottom button .ico { font-size: 20px; line-height: 1.1; }
nav.bottom button.active { color: var(--text); font-weight: 600; }

.center { text-align: center; }
.spin {
  display: inline-block; width: 16px; height: 16px;
  border: 2px solid var(--border); border-top-color: var(--text);
  border-radius: 50%; animation: sp 0.8s linear infinite; vertical-align: -3px;
}
@keyframes sp { to { transform: rotate(360deg); } }

.divider { border-top: 1px solid var(--border); margin: 14px 0 10px; }

/* login-side */
.authwrap { max-width: 380px; margin: 8vh auto 0; padding: 0 16px; }
.authwrap .logo { text-align: center; font-size: 26px; font-weight: 700; margin-bottom: 4px; }
.authwrap .tagline { text-align: center; color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.authwrap input { width: 100%; margin-bottom: 10px; }
.authwrap button.primary { width: 100%; }
.authwrap .switch { text-align: center; font-size: 14px; margin-top: 14px; }
.authwrap .switch a { color: var(--accent); cursor: pointer; }