:root {
  --bg: #0b0f19;
  --card: #11182a;
  --text: #e8eefc;
  --muted: #a9b5d1;
  --border: #2a355a;
  --link: #9db4ff;
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 20px;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a {
  color: var(--link);
  text-decoration: none;
}

/* ---------- layout ---------- */

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 20px;
}

.muted {
  color: var(--muted);
  font-size: 13px;
}

/* ---------- buttons & controls ---------- */

.ranges button {
  margin-right: 8px;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
}

.ranges button.active {
  background: var(--border);
}

button.primary {
  padding: 10px;
  border-radius: 12px;
  border: none;
  background: var(--border);
  color: var(--text);
  cursor: pointer;
}

/* ---------- tables ---------- */

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
}

/* ---------- inputs ---------- */

input,
select {
  width: 100%;
  margin-bottom: 12px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.result {
  margin-top: 12px;
  font-size: 18px;
  text-align: center;
}

/* ---------- home page ---------- */

body.home {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.home-wrap {
  width: min(980px, 100%);
  margin: auto;
}

.home-header {
  text-align: center;
  margin-bottom: 24px;
}

.home-header h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 44px);
}

.home-header p {
  color: var(--muted);
}

.home-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

@media (max-width: 900px) {
  .home-grid {
    grid-template-columns: 1fr;
  }
}

.home-card {
  display: block;
  padding: 20px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.06),
    rgba(255, 255, 255, 0.03)
  );
  color: inherit;
  transition: transform 0.12s ease, border-color 0.12s ease;
}

.home-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.18);
}

.home-badge {
  display: inline-block;
  margin-bottom: 12px;
  padding: 6px 10px;
  font-size: 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--muted);
}

.home-card h2 {
  margin: 6px 0;
}

.home-card p {
  margin-bottom: 14px;
  color: var(--muted);
}

.home-cta {
  font-weight: 600;
}

/* ---------- currency page helpers ---------- */

.fx-form {
  max-width: 100%;
  background: transparent;
}

.fx-actions {
  display: flex;
  gap: 12px;
}

.fx-actions .primary {
  flex: 1;
}