:root {
  --bg: #07111f;
  --card: rgba(255, 255, 255, 0.08);
  --card-strong: rgba(255, 255, 255, 0.13);
  --text: #f8fafc;
  --muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.12);
  --accent: #38bdf8;
  --accent-2: #22c55e;
  --danger: #fb7185;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.25), transparent 35%),
    radial-gradient(circle at bottom right, rgba(34, 197, 94, 0.16), transparent 38%),
    var(--bg);
  min-height: 100vh;
}

.page {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 28px;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(2.3rem, 5vw, 4.7rem);
  line-height: 0.98;
  margin-bottom: 16px;
}

.subtitle {
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 680px;
  line-height: 1.6;
}

.card,
.dollar-card,
.notice {
  border: 1px solid var(--border);
  background: var(--card);
  backdrop-filter: blur(18px);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.dollar-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
}

.dollar-card span,
.dollar-card small,
.summary span,
.lines span {
  color: var(--muted);
}

.dollar-card strong {
  font-size: 2rem;
}

button {
  border: 0;
  border-radius: 16px;
  padding: 13px 16px;
  color: var(--text);
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.2s, opacity 0.2s, background 0.2s;
}

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

button:disabled {
  opacity: 0.65;
  cursor: wait;
  transform: none;
}

.dollar-card button {
  margin-top: 4px;
  background: var(--card-strong);
}

.notice {
  padding: 16px 18px;
  margin-bottom: 24px;
  color: #dbeafe;
}

.grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 24px;
}

.card {
  padding: 26px;
}

.form-card label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  color: #e2e8f0;
  font-weight: 700;
}

input,
select {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.84);
  color: var(--text);
  border-radius: 16px;
  padding: 14px 15px;
  font-size: 1rem;
  outline: none;
}

select {
  cursor: pointer;
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.12);
}

input[readonly] {
  opacity: 0.85;
  cursor: not-allowed;
}

.hint {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.4;
}

.field-label {
  display: block;
  margin-top: 10px;
  margin-bottom: 0;
  color: #aeb8c8;
  font-size: 0.82rem;
  font-weight: 800;
}

.select-cotacao {
  margin: 2px 0 8px;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, #94a3b8 50%),
    linear-gradient(135deg, #94a3b8 50%, transparent 50%);
  background-position:
    calc(100% - 20px) calc(50% + 1px),
    calc(100% - 14px) calc(50% + 1px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 38px;
}

.two-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.advanced {
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 14px;
  margin-bottom: 18px;
  background: rgba(255, 255, 255, 0.04);
}

.advanced summary {
  cursor: pointer;
  font-weight: 800;
  color: #e0f2fe;
}

.advanced .two-cols {
  margin-top: 16px;
}

.checkbox-row {
  flex-direction: row !important;
  align-items: center;
  gap: 10px !important;
  margin: 16px 0 2px !important;
  color: #cbd5e1 !important;
}

.checkbox-row input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.primary {
  width: 100%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-size: 1rem;
}

.result-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.result-header h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: 0;
}

.badge {
  background: rgba(56, 189, 248, 0.15);
  color: #bae6fd;
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 999px;
  padding: 8px 12px;
  white-space: nowrap;
  font-size: 0.82rem;
  font-weight: 800;
}

.badge.free {
  background: rgba(34, 197, 94, 0.14);
  color: #bbf7d0;
  border-color: rgba(34, 197, 94, 0.35);
}

.badge.taxed {
  background: rgba(251, 113, 133, 0.14);
  color: #fecdd3;
  border-color: rgba(251, 113, 133, 0.35);
}

.summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 26px;
}

.summary div {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 16px;
}

.summary strong {
  display: block;
  margin-top: 8px;
  font-size: 1.15rem;
}

.lines {
  display: grid;
  gap: 10px;
}

.lines div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.lines .total-line {
  border-bottom: 0;
  font-size: 1.12rem;
  color: #e0f2fe;
}

.info-card {
  margin-top: 24px;
  color: var(--muted);
  line-height: 1.65;
}

.info-card h2 {
  color: var(--text);
}

.footer {
  margin-top: 24px;
  padding: 18px 0 4px;
  color: var(--muted);
  text-align: center;
  font-size: 0.95rem;
}

.footer a {
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

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

  .two-cols {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .result-header {
    flex-direction: column;
  }
}