:root {
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.5;
  color-scheme: light;
  --page-bg: #f4f6fb;
  --card-bg: #ffffff;
  --text-primary: #0f172a;
  --text-muted: #475569;
  --border-color: #e2e8f0;
  --input-border: #cbd5f5;
  --input-bg: #ffffff;
  --status-color: #475569;
  --entry-bg: #ffffff;
  --entry-border: #cbd5f5;
  --entry-positive-bg: #ecfdf5;
  --entry-positive-border: #22c55e;
  --entry-warning-bg: #fff7ed;
  --entry-warning-border: #f97316;
  --entry-info-bg: #e0f2fe;
  --entry-info-border: #38bdf8;
  --link-color: #2563eb;
  --shadow-strong: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-soft: 0 6px 18px rgba(15, 23, 42, 0.05);
}

[data-theme="dark"] {
  color-scheme: dark;
  --page-bg: #050914;
  --card-bg: #0f172a;
  --text-primary: #e2e8f0;
  --text-muted: #94a3b8;
  --border-color: #1f2937;
  --input-border: #1f2937;
  --input-bg: #0b1220;
  --status-color: #94a3b8;
  --entry-bg: #0b1220;
  --entry-border: #1f2937;
  --entry-positive-bg: #064e3b;
  --entry-positive-border: #22c55e;
  --entry-warning-bg: #7c2d12;
  --entry-warning-border: #f97316;
  --entry-info-bg: #0c4a6e;
  --entry-info-border: #38bdf8;
  --link-color: #93c5fd;
  --shadow-strong: 0 12px 30px rgba(0, 0, 0, 0.4);
  --shadow-soft: 0 10px 26px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 24px;
  background-color: var(--page-bg);
  color: var(--text-primary);
}

.app {
  width: min(960px, 100%);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.header-text {
  flex: 1 1 auto;
  min-width: 220px;
}

header h1 {
  margin: 0;
  font-size: 1.8rem;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--text-muted);
}

.card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow-strong);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 600;
}

.field input {
  border: 1px solid var(--input-border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 1rem;
  background: var(--input-bg);
  color: var(--text-primary);
}

.options {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.options label {
  display: flex;
  flex-direction: column;
  font-size: 0.9rem;
  gap: 4px;
  font-weight: 600;
}

.options input[type="number"] {
  border-radius: 8px;
  border: 1px solid var(--input-border);
  padding: 8px;
  font-size: 0.95rem;
  background: var(--input-bg);
  color: var(--text-primary);
}

.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.number-field input {
  width: 120px;
}

button {
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  background: linear-gradient(120deg, #2563eb, #7c3aed);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.ghost-btn {
  border-radius: 999px;
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.ghost-btn:hover {
  background: rgba(148, 163, 184, 0.2);
}

.status {
  margin: 0;
  color: var(--status-color);
  font-size: 0.95rem;
}

.results {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.result-card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 18px;
  box-shadow: var(--shadow-soft);
}

.result-card h2 {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

.market-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.market-row {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px;
}

.market-header {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-weight: 600;
}

.market-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.uma-entry {
  border-left: 3px solid var(--entry-border);
  padding: 8px 10px;
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--text-primary);
  border-radius: 6px;
  background: var(--entry-bg);
}

.uma-entry.state-positive {
  background: var(--entry-positive-bg);
  border-left-color: var(--entry-positive-border);
}

.uma-entry.state-warning {
  background: var(--entry-warning-bg);
  border-left-color: var(--entry-warning-border);
}

.uma-entry.state-info {
  background: var(--entry-info-bg);
  border-left-color: var(--entry-info-border);
}

.uma-entry a {
  color: var(--link-color);
  text-decoration: none;
  font-weight: 600;
}

.error {
  color: #b91c1c;
  font-weight: 600;
}

@media (max-width: 640px) {
  body {
    padding: 16px;
  }

  .card,
  .result-card {
    padding: 16px;
  }
}