:root {
  color-scheme: light;
  --red: #b91c1c;
  --red-dark: #7f1d1d;
  --cream: #fff7ed;
  --gold: #facc15;
  --amber: #f59e0b;
  --ink: #261312;
  --muted: #7c4a2d;
  --line: #f1c27d;
  --green: #15803d;
  --blue-soft: #eff6ff;
  --shadow: 0 24px 60px rgb(127 29 29 / 18%);
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgb(250 204 21 / 30%), transparent 30rem),
    linear-gradient(150deg, #fff7ed 0%, #fee2e2 100%);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

button:focus-visible,
input:focus-visible {
  outline: 3px solid rgb(250 204 21 / 85%);
  outline-offset: 2px;
}

.page-shell {
  display: grid;
  min-height: 100vh;
  padding: 1rem;
  place-items: center;
}

.app-card {
  width: min(100%, 30rem);
  overflow: hidden;
  border: 1px solid rgb(127 29 29 / 12%);
  border-radius: 1.5rem;
  background: white;
  box-shadow: var(--shadow);
}

.hero {
  padding: 1.5rem 1rem;
  text-align: center;
  color: white;
  background: linear-gradient(135deg, var(--red), var(--red-dark));
}

.hero-icon {
  width: 3rem;
  height: 3rem;
  padding: 0.35rem;
  border-radius: 999px;
  background: white;
}

.hero h1 {
  margin: 0.35rem 0 0;
  font-size: clamp(2rem, 10vw, 3.25rem);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero p {
  margin: 0.35rem 0 0;
  color: #fde68a;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

.panel,
.summary-strip {
  padding: 1rem;
  border-bottom: 1px dashed var(--line);
}

.panel h2,
.summary-strip h2 {
  margin: 0 0 0.85rem;
  color: var(--red-dark);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.party-panel {
  background: var(--cream);
}

.field-group + .field-group {
  margin-top: 1rem;
}

label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--red-dark);
  font-weight: 700;
}

label span {
  margin-left: 0.25rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 400;
}

.counter-row {
  display: grid;
  grid-template-columns: 3rem 1fr 3rem;
  gap: 0.5rem;
}

.counter-button,
.strategy-button {
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  color: var(--red-dark);
  background: white;
  font-weight: 800;
}

.counter-button {
  min-height: 3rem;
  font-size: 1.4rem;
}

input[type="number"] {
  width: 100%;
  min-height: 3rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  color: var(--red-dark);
  background: white;
  text-align: center;
  font-size: 1.25rem;
  font-weight: 800;
}

.summary-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: #fef2f2;
}

.summary-strip h2 {
  margin-bottom: 0.2rem;
  font-size: 0.85rem;
}

.summary-strip p,
.summary-number span {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.summary-number {
  text-align: right;
}

.summary-number strong {
  display: block;
  color: var(--red);
  font-size: 2rem;
  line-height: 1;
}

.strategy-panel {
  background: linear-gradient(90deg, #fff7ed, #fefce8);
}

.strategy-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.strategy-button {
  min-height: 4.25rem;
  padding: 0.5rem;
}

.strategy-button strong,
.strategy-button span {
  display: block;
}

.strategy-button span {
  margin-top: 0.15rem;
  font-size: 0.68rem;
  font-weight: 400;
}

.strategy-button.active {
  border-color: var(--red);
  color: white;
  background: var(--red);
}

.recommendations {
  border-bottom: 0;
}

.empty-state {
  padding: 2rem 1rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  color: var(--muted);
  background: var(--cream);
  text-align: center;
}

.empty-state img {
  width: 3rem;
  height: 3rem;
  opacity: 0.55;
}

.pack-list {
  display: grid;
  gap: 0.65rem;
}

.pack-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--cream);
}

.pack-card h3,
.pack-card p {
  margin: 0;
}

.pack-card h3 {
  color: var(--red-dark);
  font-size: 1rem;
}

.pack-card p {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.pack-card > strong {
  display: grid;
  flex: 0 0 3rem;
  height: 3rem;
  border-radius: 999px;
  place-items: center;
  color: var(--red-dark);
  background: var(--gold);
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem;
  margin-top: 1rem;
}

.result-card {
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: #fffbeb;
}

.result-card span,
.result-card strong {
  display: block;
}

.result-card span {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.result-card strong {
  margin-top: 0.25rem;
  color: var(--red-dark);
  font-size: 1.15rem;
}

.total-cost {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: white;
  background: var(--green);
  border-color: var(--green);
}

.total-cost span,
.total-cost strong {
  margin: 0;
  color: white;
}

.note {
  margin: 1rem 0 0;
  padding: 0.85rem;
  border-radius: 1rem;
  color: #1e3a8a;
  background: var(--blue-soft);
  font-size: 0.88rem;
}

.note.success {
  color: #14532d;
  background: #f0fdf4;
}

.footer {
  padding: 0.85rem;
  border-top: 1px dashed var(--line);
  color: #6b7280;
  text-align: center;
  font-size: 0.78rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 420px) {
  .page-shell {
    padding: 0;
    place-items: stretch;
  }

  .app-card {
    width: 100%;
    min-height: 100vh;
    border: 0;
    border-radius: 0;
  }

  .strategy-buttons,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .total-cost {
    grid-column: auto;
  }
}