:root {
  --bg: #fdfaf3;
  --card: #fff8ec;
  --cream: #fff4e0;
  --ink: #3a2e24;
  --ink-soft: #6b5a4c;
  --coral: #ff9a8b;
  --orange: #ff9a56;
  --peach: #ffc371;
  --peach-soft: #ffe0b2;
  --mint: #7fd8be;
  --mint-deep: #4ecdc4;
  --lilac: #c8b6ff;
  --pink: #ffb4c6;
  --shadow-soft: 0 6px 24px rgba(255, 154, 86, 0.12);
  --shadow-mid: 0 8px 28px rgba(255, 154, 86, 0.18);
  --radius: 14px;
}

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

body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Poppins", "Noto Sans KR", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  min-height: 100vh;
}

.shell {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 64px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

header { text-align: center; margin-bottom: 8px; }
.brand {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: 2.2rem;
  letter-spacing: -0.5px;
  background: linear-gradient(90deg, #ff9a56 0%, #ffc371 35%, #7fd8be 75%, #4ecdc4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
}
.sub { color: var(--ink-soft); margin: 6px 0 0; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow-soft);
}
.card h2 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
input[type="text"], input[type="password"], input[type="date"] {
  font: inherit;
  padding: 10px 14px;
  border: 1px solid var(--peach-soft);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  min-width: 220px;
}
input:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 154, 86, 0.2);
}
label { color: var(--ink); font-size: 0.95rem; }
.remember { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-soft); }

.mode-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.mode-group label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 10px;
  background: var(--cream);
  cursor: pointer;
}

.mode-body {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.hidden { display: none !important; }
.hint { color: var(--ink-soft); margin: 6px 0 12px; font-size: 0.92rem; }

button.primary {
  font: inherit;
  padding: 10px 22px;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
  color: #4a2e14;
  background: linear-gradient(135deg, #ff9a56, #ffb4c6);
  box-shadow: var(--shadow-mid);
  transition: transform 120ms ease, box-shadow 120ms ease;
}
button.primary:hover { transform: translateY(-1px); box-shadow: 0 10px 32px rgba(255, 154, 86, 0.22); }
button.primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.corner-badge {
  position: fixed;
  top: 8px;
  font-size: 11px;
  color: #999;
  opacity: 0.6;
  z-index: 9999;
  user-select: text;
  cursor: text;
  line-height: 1;
}
.corner-version { right: 12px; }
.corner-user { right: 160px; }
.corner-user .linkish {
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  color: #999;
  cursor: pointer;
  user-select: text;
  text-decoration: underline;
}
.corner-user .sep { margin: 0 2px; }
@media (max-width: 480px) {
  .corner-user { display: none; }
}

.status {
  min-height: 1.2em;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.status.error { color: #b4412b; }

table.result {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--cream);
  border-radius: 12px;
  overflow: hidden;
}
table.result th, table.result td {
  padding: 10px 14px;
  text-align: left;
}
table.result th {
  background: rgba(255, 195, 113, 0.35);
  font-size: 0.85rem;
  color: var(--ink-soft);
  font-weight: 600;
  letter-spacing: 0.5px;
}
table.result td.cost { text-align: right; font-variant-numeric: tabular-nums; }
table.result tr.total td {
  background: rgba(127, 216, 190, 0.32);
  font-weight: 700;
}
table.result tr:nth-child(even) td { background: rgba(255, 244, 224, 0.6); }
table.result tr.total:nth-child(even) td { background: rgba(127, 216, 190, 0.32); }

.warning {
  margin-top: 14px;
  padding: 10px 14px;
  background: rgba(255, 180, 198, 0.4);
  border-left: 4px solid var(--coral);
  border-radius: 8px;
  color: #75333d;
  font-size: 0.94rem;
}
.footnote { color: var(--ink-soft); font-size: 0.85rem; margin-top: 14px; }

@media (max-width: 480px) {
  .shell { padding: 20px 14px 48px; }
  .brand { font-size: 1.7rem; }
  .card { padding: 18px 18px; }
  input[type="text"], input[type="password"], input[type="date"] { min-width: 0; width: 100%; }
}