:root {
  --bg: #f4efe6;
  --panel: rgba(255, 251, 245, 0.92);
  --panel-border: rgba(79, 63, 49, 0.14);
  --text: #1d1a17;
  --muted: #6b6259;
  --accent: #b85c38;
  --accent-strong: #924725;
  --grid: #cfc3b4;
  --axis: #25211d;
  --paper: #fffdfa;
  --shadow: 0 22px 60px rgba(79, 63, 49, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(184, 92, 56, 0.18), transparent 28%),
    radial-gradient(circle at bottom right, rgba(31, 96, 76, 0.14), transparent 24%),
    linear-gradient(145deg, #efe4d4, var(--bg));
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 24px auto;
  display: grid;
  grid-template-columns: minmax(320px, 380px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.panel,
.preview-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.panel {
  padding: 24px;
}

.panel__header h1,
.preview-card__header h2 {
  margin: 0;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

.intro,
.preview-card__header p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.controls {
  margin-top: 24px;
  display: grid;
  gap: 16px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.polar-only {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field {
  display: grid;
  gap: 8px;
  font-size: 0.95rem;
}

.field span {
  font-weight: 500;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(37, 33, 29, 0.14);
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
}

.checkbox {
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(37, 33, 29, 0.1);
  background: rgba(255, 255, 255, 0.68);
}

.checkbox input {
  width: 18px;
  height: 18px;
  margin: 0;
}

.actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.export-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

button {
  cursor: pointer;
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 700;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

button:hover {
  transform: translateY(-1px);
}

button[type="submit"] {
  background: var(--accent);
  color: white;
}

.ghost {
  background: rgba(37, 33, 29, 0.08);
  color: var(--text);
}

.preview-card {
  padding: 20px;
}

.preview {
  margin-top: 18px;
  min-height: 540px;
  border-radius: 24px;
  padding: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.85), rgba(248, 243, 237, 0.92));
  border: 1px solid rgba(37, 33, 29, 0.08);
  display: grid;
  place-items: center;
}

.preview svg {
  width: 100%;
  height: auto;
  max-height: 72vh;
  display: block;
}

.hidden {
  display: none;
}

@media (max-width: 920px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .preview {
    min-height: 420px;
  }
}

@media (max-width: 560px) {
  .app-shell {
    width: min(100% - 20px, 100%);
    margin: 10px auto 20px;
  }

  .panel,
  .preview-card {
    border-radius: 20px;
  }

  .panel,
  .preview-card,
  .preview {
    padding: 16px;
  }

  .field-grid,
  .actions {
    grid-template-columns: 1fr;
    display: grid;
  }
}