:root {
  --bg-main: #f4f7fb;
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-card-strong: #ffffff;
  --text-main: #172033;
  --text-soft: #5d6983;
  --primary: #1769ff;
  --primary-dark: #0d4ec2;
  --accent: #dce9ff;
  --success: #13795b;
  --error: #c43d3d;
  --border: rgba(23, 32, 51, 0.12);
  --shadow: 0 22px 60px rgba(30, 58, 138, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at top left, rgba(23, 105, 255, 0.14), transparent 32%),
    radial-gradient(circle at bottom right, rgba(19, 121, 91, 0.14), transparent 26%),
    linear-gradient(180deg, #f8fbff 0%, var(--bg-main) 100%);
}

.page {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.9fr);
  gap: 1.5rem;
  align-items: start;
}

.card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  border-radius: var(--radius-lg);
}

.converter-card,
.result-card {
  padding: 1.5rem;
}

.intro {
  margin-bottom: 1.5rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
}

.intro h1 {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.05;
}

.intro-text {
  margin: 0.9rem 0 0;
  color: var(--text-soft);
  line-height: 1.7;
  max-width: 58ch;
}

.converter-form {
  display: grid;
  gap: 1.25rem;
}

.field-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 1rem;
  align-items: end;
}

.field-group {
  display: grid;
  gap: 0.55rem;
}

label {
  font-size: 0.95rem;
  font-weight: 600;
}

input,
select,
.primary-button,
.swap-button {
  font: inherit;
}

input,
select {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--bg-card-strong);
  color: var(--text-main);
  border-radius: var(--radius-sm);
  padding: 0.95rem 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

input:focus,
select:focus {
  outline: none;
  border-color: rgba(23, 105, 255, 0.6);
  box-shadow: 0 0 0 4px rgba(23, 105, 255, 0.12);
}

.actions {
  display: flex;
}

.primary-button,
.swap-button {
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.primary-button {
  padding: 0.95rem 1.4rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 14px 30px rgba(23, 105, 255, 0.28);
}

.primary-button:hover,
.primary-button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 18px 36px rgba(23, 105, 255, 0.33);
}

.swap-button {
  align-self: end;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: 1.35rem;
  font-weight: 700;
}

.swap-button:hover,
.swap-button:focus-visible {
  transform: translateY(-1px) rotate(180deg);
  background: #cddfff;
}

.message {
  min-height: 1.5rem;
  margin: 1rem 0 0;
  font-size: 0.95rem;
}

.error-message {
  color: var(--error);
  font-weight: 600;
}

.result-card {
  background:
    linear-gradient(160deg, rgba(23, 105, 255, 0.08), rgba(255, 255, 255, 0.92)),
    var(--bg-card);
  display: grid;
  gap: 0.85rem;
}

.result-label {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-soft);
}

.result-value {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1;
}

.exchange-rate,
.status-text {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.6;
}

.status-text {
  color: var(--success);
  font-weight: 600;
}

@media (max-width: 820px) {
  .page {
    grid-template-columns: 1fr;
  }

 
}

@media (max-width: 620px) {
  .page {
    width: min(100% - 1rem, 100%);
    padding: 1rem 0 2rem;
  }

  .converter-card,
  .result-card {
    padding: 1.2rem;
    border-radius: 20px;
  }

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

  .swap-button {
    justify-self: center;
    align-self: center;
  }

  .actions {
    display: block;
  }

  .primary-button {
    width: 100%;
  }
}