:root {
  --bg: #f7f2e8;
  --surface: rgba(255, 250, 242, 0.86);
  --surface-strong: #fffdf8;
  --text: #1f1d1a;
  --muted: #5d5a54;
  --line: rgba(39, 32, 20, 0.1);
  --accent: #d66c2f;
  --accent-dark: #b75118;
  --accent-soft: #ffe1cf;
  --shadow: 0 20px 50px rgba(69, 45, 20, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Source Sans 3", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(214, 108, 47, 0.22), transparent 28%),
    radial-gradient(circle at top right, rgba(255, 214, 153, 0.35), transparent 32%),
    linear-gradient(180deg, #fdf8ef 0%, var(--bg) 100%);
}

input,
button {
  font: inherit;
}

.page {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 48px;
}

.hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  align-items: end;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-dark);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.7rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.intro {
  max-width: 60ch;
  margin: 16px 0 0;
  font-size: 1.08rem;
  line-height: 1.6;
  color: var(--muted);
}

.panel,
.hero-card {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 24px;
}

.hero-card-label {
  margin: 0 0 16px;
  color: var(--muted);
  font-weight: 600;
}

.hero-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.hero-card-grid span,
.result-card span,
.band-grid span {
  display: block;
  margin-bottom: 8px;
  font-size: 0.95rem;
  color: var(--muted);
}

.hero-card-grid strong,
.result-card strong,
.band-grid strong {
  font-size: 1.45rem;
}

.calculator-shell {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.panel {
  padding: 28px;
}

.panel-heading {
  margin-bottom: 22px;
}

.panel-heading p {
  margin: 8px 0 0;
  color: var(--muted);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.field span {
  font-weight: 600;
}

.field input {
  width: 100%;
  padding: 14px 15px;
  border: 1px solid rgba(39, 32, 20, 0.14);
  border-radius: 16px;
  background: var(--surface-strong);
  color: var(--text);
}

.field input:focus {
  outline: 2px solid rgba(214, 108, 47, 0.25);
  border-color: var(--accent);
}

.preset-row,
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.preset,
.secondary-btn,
.primary-btn {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  cursor: pointer;
  transition: transform 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.preset,
.secondary-btn {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.primary-btn {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.preset:hover,
.secondary-btn:hover,
.primary-btn:hover {
  transform: translateY(-1px);
}

.results-grid,
.band-grid,
.tips-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.result-card,
.band-grid article,
.tips-grid article {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.6);
}

.result-card.accent {
  background: linear-gradient(135deg, #d66c2f, #e59552);
  color: #fff;
}

.result-card.accent span {
  color: rgba(255, 255, 255, 0.86);
}

.breakdown {
  margin-top: 22px;
}

.breakdown-header {
  margin-bottom: 14px;
}

.breakdown-header p {
  margin: 6px 0 0;
  color: var(--muted);
}

.breakdown-list {
  display: grid;
  gap: 12px;
}

.breakdown-item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 14px;
  align-items: center;
}

.breakdown-item span {
  font-weight: 600;
}

.bar {
  overflow: hidden;
  height: 12px;
  border-radius: 999px;
  background: rgba(39, 32, 20, 0.09);
}

.bar-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #d66c2f, #f0a36a);
}

.budget-band {
  margin-top: 24px;
}

.budget-band h3 {
  margin-bottom: 14px;
}

.tips-grid h3 {
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.tips-grid p {
  margin: 0;
  line-height: 1.55;
  color: var(--muted);
}

@media (max-width: 940px) {
  .hero,
  .calculator-shell {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 20px, 1180px);
    padding-top: 18px;
  }

  .panel,
  .hero-card {
    padding: 20px;
    border-radius: 22px;
  }

  .field-grid,
  .results-grid,
  .band-grid,
  .tips-grid,
  .hero-card-grid {
    grid-template-columns: 1fr;
  }

  .breakdown-item {
    grid-template-columns: 1fr;
  }
}