/* Reset e Variaveis */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --background: #f8f9fa;
  --foreground: #1a1f36;
  --card: #ffffff;
  --card-foreground: #1a1f36;
  --muted: #e9ecef;
  --muted-foreground: #6c757d;
  --border: #dee2e6;
  --primary: #1a1f36;
  --primary-foreground: #ffffff;
  --accent: #0d6efd;
  --accent-foreground: #ffffff;
  --call-color: #198754;
  --call-bg: #d1e7dd;
  --put-color: #dc3545;
  --put-bg: #f8d7da;
  --radius: 12px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.header-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--primary);
  border-radius: var(--radius);
  color: var(--primary-foreground);
}

.header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 4px;
}

.header p {
  font-size: 0.95rem;
  color: var(--muted-foreground);
}

/* Cards */
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border);
}

.card h2 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 16px;
}

/* Info Card */
.info-card {
  margin-bottom: 24px;
}

.info-card p {
  color: var(--muted-foreground);
  margin-bottom: 16px;
}

.formula-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--muted);
  border-radius: 8px;
  flex-wrap: wrap;
}

.formula-label {
  font-weight: 600;
  color: var(--foreground);
}

.formula-box code {
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.95rem;
  color: var(--accent);
}

/* Calculator Grid */
.calculator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

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

/* Form Styles */
.bs-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--foreground);
}

.tooltip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  background: var(--muted);
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--muted-foreground);
  cursor: help;
  position: relative;
}

.tooltip:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 12px;
  background: var(--primary);
  color: var(--primary-foreground);
  font-size: 0.75rem;
  font-weight: 400;
  border-radius: 6px;
  white-space: nowrap;
  max-width: 250px;
  white-space: normal;
  z-index: 10;
  margin-bottom: 6px;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix {
  position: absolute;
  left: 14px;
  color: var(--muted-foreground);
  font-weight: 500;
  pointer-events: none;
}

.input-suffix {
  position: absolute;
  right: 14px;
  color: var(--muted-foreground);
  font-size: 0.85rem;
  pointer-events: none;
}

.form-group input {
  width: 100%;
  padding: 12px 14px;
  padding-left: 40px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  background: var(--card);
  color: var(--foreground);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

.form-group input::placeholder {
  color: var(--muted-foreground);
  opacity: 0.6;
}

.input-hint {
  font-size: 0.75rem;
  color: var(--muted-foreground);
}

/* Auto Section */
.auto-section {
  padding: 20px;
  background: linear-gradient(135deg, rgba(13, 110, 253, 0.05) 0%, rgba(13, 110, 253, 0.02) 100%);
  border: 1px solid rgba(13, 110, 253, 0.15);
  border-radius: 10px;
  margin-bottom: 8px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
}

.ticker-wrapper {
  display: flex;
  gap: 8px;
}

.ticker-input {
  flex: 1;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding-left: 14px !important;
}

.btn-buscar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: var(--accent);
  color: var(--accent-foreground);
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
  white-space: nowrap;
}

.btn-buscar:hover {
  background: #0b5ed7;
}

.btn-buscar:disabled {
  background: var(--muted);
  cursor: not-allowed;
}

/* Loading Indicator */
.loading-indicator {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--muted);
  border-radius: 8px;
  margin-top: 12px;
  color: var(--muted-foreground);
  font-size: 0.9rem;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Auto Result */
.auto-result {
  margin-top: 12px;
  padding: 12px 16px;
  background: rgba(25, 135, 84, 0.1);
  border: 1px solid rgba(25, 135, 84, 0.3);
  border-radius: 8px;
}

.auto-result-header {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--call-color);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.auto-result-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.auto-result-details {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.auto-detail {
  display: flex;
  gap: 6px;
  font-size: 0.85rem;
}

.auto-label {
  color: var(--muted-foreground);
}

.auto-value {
  font-weight: 600;
  color: var(--foreground);
}

/* Error Message */
.error-message {
  margin-top: 12px;
  padding: 10px 14px;
  background: rgba(220, 53, 69, 0.1);
  border: 1px solid rgba(220, 53, 69, 0.3);
  border-radius: 8px;
  color: var(--put-color);
  font-size: 0.85rem;
}

/* Divider */
.divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 20px 0;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.divider span {
  font-size: 0.8rem;
  color: var(--muted-foreground);
  white-space: nowrap;
}

/* Manual Section */
.manual-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Button */
.btn-calcular {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  background: var(--accent);
  color: var(--accent-foreground);
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  margin-top: 8px;
}

.btn-calcular:hover {
  background: #0b5ed7;
}

.btn-calcular:active {
  transform: scale(0.98);
}

/* Results Section */
.results-card {
  display: flex;
  flex-direction: column;
}

.results-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
  color: var(--muted-foreground);
  flex: 1;
}

.results-placeholder svg {
  margin-bottom: 16px;
  opacity: 0.5;
}

.results-placeholder p {
  font-size: 0.9rem;
}

.results-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Result Boxes */
.result-box {
  padding: 20px;
  border-radius: 10px;
  border: 2px solid;
}

.call-box {
  background: var(--call-bg);
  border-color: var(--call-color);
}

.put-box {
  background: var(--put-bg);
  border-color: var(--put-color);
}

.result-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.result-badge {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.call-badge {
  background: var(--call-color);
  color: white;
}

.put-badge {
  background: var(--put-color);
  color: white;
}

.result-type {
  font-size: 0.85rem;
  color: var(--muted-foreground);
}

.result-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 16px;
}

.result-details {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

@media (max-width: 600px) {
  .result-details {
    grid-template-columns: repeat(3, 1fr);
  }
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.detail-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--muted-foreground);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.detail-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--foreground);
  font-family: 'Fira Code', monospace;
}

/* Intermediate Values */
.intermediate-values {
  padding: 16px;
  background: var(--muted);
  border-radius: 8px;
}

.intermediate-values h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted-foreground);
  margin-bottom: 12px;
}

.intermediate-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

@media (max-width: 500px) {
  .intermediate-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.intermediate-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.intermediate-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted-foreground);
}

.intermediate-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--foreground);
  font-family: 'Fira Code', monospace;
}

/* Greeks Card */
.greeks-card {
  margin-bottom: 24px;
}

.greeks-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

@media (max-width: 900px) {
  .greeks-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .greeks-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.greek-item {
  padding: 16px;
  background: var(--muted);
  border-radius: 8px;
}

.greek-symbol {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.greek-item p {
  font-size: 0.8rem;
  color: var(--muted-foreground);
  line-height: 1.5;
}

/* Footer */
.footer {
  text-align: center;
  padding: 24px;
  border-top: 1px solid var(--border);
  margin-top: 16px;
}

.footer p {
  font-size: 0.85rem;
  color: var(--muted-foreground);
  margin-bottom: 4px;
}

.footer .disclaimer {
  font-size: 0.75rem;
  color: var(--muted-foreground);
  opacity: 0.8;
}