/* ===== ROOT VARIABLES ===== */
:root {
  /* Cores do projeto original */
  --color-bg: #f8fafc;
  --color-card: #ffffff;
  --color-primary: #15212d;
  --color-primary-light: #3b7bea;
  --color-primary-dark: #0e1921;
  --color-secondary: #ffb400;
  --color-secondary-dark: #e09600;
  --color-accent: #39b3c3;
  --color-text: #15212d;
  --color-text-light: #64748b;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  
  /* Adicionais para profissionalização */
  --color-info: #3b82f6;
  --color-neutral: #6b7280;
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #34d399 100%);
  --gradient-premium: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  
  /* Configurações */
  --border-radius: 16px;
  --border-radius-sm: 8px;
  --border-radius-lg: 24px;
  --box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
  --box-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.03);
  --box-shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --box-shadow-premium: 0 25px 50px -12px rgba(0,0,0,0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
}

/* ===== ANIMATIONS ===== */
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== RESET & BASE ===== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin-top: 110px; /* Espaço para o header fixo - desktop */
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ===== LAYOUT ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* ===== HEADER ===== */
header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: 0.75rem 0;
  box-shadow: var(--box-shadow-lg);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: white;
}

.logo {
  width: 90px;
  height: 90px;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

.logo-text {
  font-family: 'Poppins', sans-serif;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  font-size: 0.875rem;
  opacity: 0.9;
  font-weight: 400;
}

/* ===== RATES BANNER ===== */
.rates-banner {
  background: var(--color-card);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 1.25rem;
  margin-bottom: 2rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  border: 1px solid var(--color-border);
  position: relative;
  align-items: stretch;
}

.rate-toggle-container {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 10;
}

.rate-toggle-btn {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--color-border);
  color: var(--color-text-light);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: all 0.2s ease;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.rate-toggle-btn:hover {
  background: var(--color-primary-light);
  color: white;
  border-color: var(--color-primary-light);
  transform: scale(1.05);
}

.rate-toggle-btn:active {
  transform: scale(0.95);
}

.rate-toggle-btn i {
  font-size: 16px;
  line-height: 1;
  pointer-events: none;
}

.rate-item {
  text-align: center;
  padding: 0.75rem 0.5rem;
  background: linear-gradient(135deg, rgba(59, 123, 234, 0.02) 0%, rgba(57, 179, 195, 0.02) 100%);
  border-radius: 10px;
  border: 1px solid rgba(59, 123, 234, 0.08);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 70px;
}

.rate-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  border-color: rgba(59, 123, 234, 0.15);
}

.rate-label {
  display: block;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-light);
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
  line-height: 1.2;
}

.rate-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  font-family: 'Poppins', sans-serif;
  line-height: 1.2;
}

.rate-value.rate-date {
  font-size: 0.75rem;
  color: var(--color-text-light);
  font-weight: 600;
}

.rate-skeleton {
  display: inline-block;
  background: linear-gradient(90deg, #e0e0e0 25%, #f0f0f0 50%, #e0e0e0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
  min-width: 50px;
  height: 1.1em;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== CARDS ===== */
.card {
  background: var(--color-card);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  border: 1px solid var(--color-border);
  padding: 2rem;
  margin-bottom: 2rem;
  transition: var(--transition);
}

.main-card {
  box-shadow: var(--box-shadow-lg);
}

.card-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.card-title i {
  color: var(--color-primary-light);
  font-size: 1.75rem;
}

.card-title h1,
.card-title h2 {
  font-size: 1.5rem;
  color: var(--color-primary);
}

/* ===== INVESTMENT TYPE SELECTOR ===== */
.investment-type-selector {
  margin-bottom: 2rem;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.125rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.section-title i {
  font-size: 1.25rem;
  color: var(--color-primary-light);
}

.investment-types {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.625rem;
}

.investment-type {
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 0.75rem 0.5rem;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.investment-type::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.investment-type:hover {
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-lg);
  border-color: var(--color-primary-light);
}

.investment-type.active {
  border-color: var(--color-primary-light);
  background: linear-gradient(135deg, rgba(59, 123, 234, 0.05) 0%, rgba(59, 123, 234, 0.08) 100%);
  box-shadow: var(--box-shadow);
}

.investment-type.active::before {
  opacity: 0.05;
}

.type-icon {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
  filter: grayscale(0.2);
  transition: var(--transition);
}

.investment-type:hover .type-icon,
.investment-type.active .type-icon {
  filter: grayscale(0);
  transform: scale(1.1);
}

.type-name {
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--color-primary);
  margin-bottom: 0.125rem;
  line-height: 1.2;
}

.type-desc {
  font-size: 0.625rem;
  color: var(--color-text-light);
  line-height: 1.2;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== FORMS ===== */
.form-section {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.form-section:last-of-type {
  border-bottom: none;
  margin-bottom: 1rem;
  padding-bottom: 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.input-group {
  position: relative;
}

.input-group label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.input-group input,
.input-group select {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: 1rem;
  font-family: inherit;
  background: var(--color-card);
  transition: var(--transition);
  color: var(--color-text);
}

.input-group input:focus,
.input-group select:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(59, 123, 234, 0.1);
}

.input-helper {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 0.25rem;
}

/* ===== RATE SELECTOR ===== */
.rate-selector {
  background: var(--color-bg);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
}

.rate-type-buttons {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  background: white;
  padding: 0.25rem;
  border-radius: var(--border-radius-sm);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* ===== RATE TYPE BUTTONS ===== */
.rate-type-btn {
  flex: 1;
  padding: 0.625rem 1rem;
  border: none;
  background: transparent;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-light);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.rate-type-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: var(--gradient-primary);
  transition: width 0.3s ease;
  z-index: -1;
}

.rate-type-btn:hover:not(:disabled):not(.active)::before {
  width: 100%;
}

.rate-type-btn:hover:not(:disabled):not(.active) {
  color: white;
}

.rate-type-btn.active {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--box-shadow);
}

.rate-type-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.rate-type-btn:disabled:hover {
  color: var(--color-text-light);
}

.rate-input-group {
  transition: var(--transition);
}

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

.input-with-addon input {
  width: 100%;
  padding: 0.875rem 5rem 0.875rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: 1rem;
  font-family: inherit;
  background: var(--color-card);
  transition: var(--transition);
  color: var(--color-text);
}

.input-with-addon input:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(59, 123, 234, 0.1);
}

.input-addon,
.input-prefix {
  position: absolute;
  color: var(--color-text-light);
  font-weight: 500;
  font-size: 0.875rem;
  pointer-events: none;
}

.input-addon {
  right: 1rem;
}

.input-prefix {
  left: 1rem;
}

.input-prefix + input {
  padding-left: 4.5rem;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: 1rem;
  font-weight: 600;
  font-family: 'Poppins', sans-serif;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(59, 123, 234, 0.3);
  min-width: 200px;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 123, 234, 0.4);
}

.btn-primary:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary-light);
  background: rgba(59, 123, 234, 0.05);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary-light);
}

.btn-outline:hover {
  background: var(--color-primary-light);
  color: white;
}

/* Button Loader */
.btn-loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: inherit;
}

.loader-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.btn-text {
  transition: opacity 0.2s ease;
}

.btn.loading .btn-text,
.btn.loading i {
  opacity: 0;
}

.btn.loading .btn-loader {
  opacity: 1;
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

/* ===== RESULTS SECTION ===== */
.results-section {
  margin-top: 3rem;
  animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== SUMMARY CARDS ===== */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.summary-card {
  background: var(--color-card);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: var(--transition);
  animation: slideInRight 0.4s ease forwards;
  opacity: 0;
}

.summary-card:nth-child(1) { animation-delay: 0.1s; }
.summary-card:nth-child(2) { animation-delay: 0.2s; }
.summary-card:nth-child(3) { animation-delay: 0.3s; }
.summary-card:nth-child(4) { animation-delay: 0.4s; }

.summary-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-lg);
  border-color: var(--color-primary-light);
}

.summary-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-bg) 0%, rgba(59, 123, 234, 0.05) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.summary-icon::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(59, 123, 234, 0.1) 0%, transparent 70%);
  animation: pulse 3s ease-in-out infinite;
}

.summary-icon i {
  font-size: 1.5rem;
  color: var(--color-primary-light);
  position: relative;
  z-index: 1;
}

.summary-content {
  flex: 1;
}

.summary-label {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 0.25rem;
}

.summary-value {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: 'Poppins', sans-serif;
  color: var(--color-text);
}

.summary-value.primary {
  color: var(--color-primary);
}

.summary-value.success {
  color: var(--color-success);
}

.summary-value.danger {
  color: var(--color-error);
}

/* ===== ANALYSIS CARDS ===== */
.analysis-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 1.5rem;
}

.analysis-card {
  background: var(--color-bg);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
}

.analysis-card.full-width {
  grid-column: 1 / -1;
}

.analysis-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.125rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
  position: relative;
}

.analysis-title i {
  font-size: 1.25rem;
  color: var(--color-primary-light);
}

.info-btn {
  margin-left: auto;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-light);
  padding: 0.25rem;
  border-radius: 50%;
  transition: var(--transition);
}

.info-btn:hover {
  background: var(--color-border);
  color: var(--color-primary);
}

.info-btn i {
  font-size: 1rem;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}

.detail-row:last-of-type {
  border-bottom: none;
}

.detail-row span:first-child {
  color: var(--color-text-light);
  font-size: 0.875rem;
}

.detail-row span:last-child {
  font-weight: 600;
  color: var(--color-text);
}

/* ===== INFLATION NOTE ===== */
.inflation-note {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.75rem;
  background: rgba(255, 180, 0, 0.05);
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(255, 180, 0, 0.2);
}

.inflation-note i {
  font-size: 1rem;
  color: var(--color-secondary);
  margin-top: 0.125rem;
}

.inflation-note span {
  font-size: 0.75rem;
  color: var(--color-text);
  line-height: 1.4;
}

.inflation-note strong {
  color: var(--color-primary);
  font-weight: 600;
}

/* ===== TAX NOTE ===== */
.tax-note {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.75rem;
  background: rgba(59, 123, 234, 0.05);
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(59, 123, 234, 0.1);
}

.tax-note i {
  font-size: 1rem;
  color: var(--color-info);
  margin-top: 0.125rem;
}

.tax-note span {
  font-size: 0.75rem;
  color: var(--color-text);
  line-height: 1.4;
}

/* ===== INFLATION METER ===== */
.inflation-meter {
  margin-top: 1rem;
}

.meter-bar {
  height: 24px;
  background: var(--color-bg);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
}

.meter-fill {
  height: 100%;
  background: var(--gradient-secondary);
  border-radius: 12px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 2px;
}

.meter-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-text-light);
}

/* ===== EXPORT ACTIONS ===== */
.export-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

/* ===== TIPS CARD ===== */
.tips-card {
  background: linear-gradient(135deg, rgba(59, 123, 234, 0.05) 0%, rgba(57, 179, 195, 0.05) 100%);
  border: 1px solid rgba(59, 123, 234, 0.1);
}

.tips-content {
  display: grid;
  gap: 1rem;
}

.tip-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--color-card);
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--color-border);
}

.tip-icon {
  width: 40px;
  height: 40px;
  background: var(--color-bg);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tip-icon i {
  font-size: 1.25rem;
  color: var(--color-primary-light);
}

.tip-content h4 {
  font-size: 0.875rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.tip-content p {
  font-size: 0.813rem;
  color: var(--color-text-light);
  line-height: 1.4;
}

/* ===== FOOTER ===== */
footer {
  margin-top: 4rem;
  padding: 3rem 0 2rem;
  background: linear-gradient(135deg, #0f172a 0%, #020617 100%);
  color: #e2e8f0;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 0;
  right: 0;
  height: 100px;
  background: var(--color-bg);
  border-radius: 0 0 50% 50% / 0 0 100% 100%;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
  text-align: center;
}

.footer-logo {
  width: 60px;
  height: 60px;
  margin: 0 auto 2rem;
  display: block;
  opacity: 0.9;
  transition: var(--transition);
}

.footer-logo:hover {
  opacity: 1;
  transform: scale(1.1);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.copyright {
  font-size: 0.875rem;
  opacity: 0.7;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== CUSTOM INVESTMENT SETTINGS ===== */
.custom-investment-settings {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(139, 92, 246, 0.05);
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.custom-setting-group {
  margin-bottom: 0.75rem;
}

.custom-setting-group:last-child {
  margin-bottom: 0;
}

.custom-setting-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-text);
}

.custom-setting-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.custom-info {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-text-light);
  line-height: 1.4;
}

.custom-info i {
  font-size: 1rem;
  color: var(--color-primary-light);
  margin-top: 0.125rem;
}

/* ===== NOTIFICATIONS ===== */
.error-notification {
  position: fixed;
  top: 2rem;
  right: 2rem;
  background: var(--color-error);
  color: white;
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius-sm);
  box-shadow: var(--box-shadow-xl);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transform: translateX(400px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
}

.error-notification.show {
  transform: translateX(0);
}

.error-notification i {
  font-size: 1.25rem;
}

/* ===== MODAL ===== */
.info-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.info-modal.show {
  opacity: 1;
}

.modal-content {
  background: var(--color-card);
  border-radius: var(--border-radius);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow: auto;
  box-shadow: var(--box-shadow-xl);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  font-size: 1.25rem;
  color: var(--color-primary);
}

.modal-close {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-light);
  padding: 0.5rem;
  border-radius: 50%;
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--color-bg);
  color: var(--color-primary);
}

.modal-body {
  padding: 1.5rem;
}

.modal-body p {
  margin-bottom: 1rem;
  line-height: 1.6;
  color: var(--color-text);
}

.modal-body ol {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.modal-body li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

/* ===== RESPONSIVENESS ===== */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }
  
  /* Header mobile optimization */
  header {
    padding: 0.5rem 0;
  }
  
  .logo {
    width: 60px;
    height: 60px;
  }
  
  .logo-text {
    font-size: 1.5rem;
  }
  
  .tagline {
    font-size: 0.75rem;
  }
  
  body {
    margin-top: 76px; /* Ajuste para header móvel: 60px logo + 16px padding */
  }
  
  .header-content {
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
  }
  
  .back-button span {
    display: none;
  }
  
  .rates-banner {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    padding: 1rem;
    padding-top: 2.25rem;
  }
  
  .rate-toggle-container {
    top: 0.5rem;
    right: 0.5rem;
  }
  
  .rate-toggle-btn {
    width: 26px;
    height: 26px;
    padding: 4px;
  }
  
  .rate-toggle-btn i {
    font-size: 14px;
  }
  
  .rate-item {
    min-height: 60px;
    padding: 0.5rem 0.25rem;
  }
  
  .rate-label {
    font-size: 0.5rem;
    margin-bottom: 0.125rem;
  }
  
  .rate-value {
    font-size: 0.875rem;
  }
  
  .rate-value.rate-date {
    font-size: 0.625rem;
  }
  
  .investment-types {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
  }
  
  .investment-type {
    min-height: 70px;
    padding: 0.5rem 0.25rem;
  }
  
  .type-icon {
    font-size: 1.25rem;
    margin-bottom: 0.125rem;
  }
  
  .type-name {
    font-size: 0.625rem;
    margin-bottom: 0.075rem;
  }
  
  .type-desc {
    font-size: 0.5rem;
    line-height: 1.1;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .summary-cards {
    grid-template-columns: 1fr;
  }
  
  .analysis-grid {
    grid-template-columns: 1fr;
  }
  
  .form-actions {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .export-actions {
    flex-direction: column;
  }
  
  .rate-type-buttons {
    flex-direction: column;
  }
  
  .modal-content {
    margin: 1rem;
  }
  
  .error-notification {
    right: 1rem;
    left: 1rem;
    transform: translateY(-100px);
  }
  
  .error-notification.show {
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  /* Header mobile optimization for small screens */
  header {
    padding: 0.4rem 0;
  }
  
  .logo {
    width: 50px;
    height: 50px;
  }
  
  .logo-text {
    font-size: 1.3rem;
  }
  
  .tagline {
    font-size: 0.7rem;
  }
  
  body {
    margin-top: 62px; /* Ajuste para header móvel pequeno: 50px logo + 12px padding */
  }
  
  .card {
    padding: 1.5rem;
  }
  
  .card-title h1,
  .card-title h2 {
    font-size: 1.25rem;
  }
  
  .rates-banner {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 0.75rem;
    padding-top: 2rem;
  }
  
  .rate-item {
    min-height: 50px;
    padding: 0.5rem;
  }
  
  .rate-label {
    font-size: 0.5rem;
    margin-bottom: 0.125rem;
  }
  
  .rate-value {
    font-size: 0.875rem;
  }
  
  .rate-value.rate-date {
    font-size: 0.625rem;
  }
  
  .investment-types {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.375rem;
  }
  
  .investment-type {
    min-height: 65px;
    padding: 0.375rem 0.25rem;
  }
  
  .type-icon {
    font-size: 1.125rem;
    margin-bottom: 0.125rem;
  }
  
  .type-name {
    font-size: 0.6rem;
    margin-bottom: 0.05rem;
  }
  
  .type-desc {
    font-size: 0.475rem;
    line-height: 1.1;
  }
  
  .form-grid {
    gap: 1rem;
  }
  
  .input-group {
    margin-bottom: 0.75rem;
  }
  
  .section-title {
    font-size: 1rem;
    margin-bottom: 0.75rem;
  }
  
  .btn {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
  }
  
  /* Gráficos mobile */
  #evolutionChart,
  #comparisonChart {
    padding: 0;
    margin: 0;
  }
  
  .apexcharts-canvas {
    margin: 0 !important;
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  header,
  footer,
  .ad-container,
  .export-actions,
  .back-button {
    display: none !important;
  }
  
  body {
    background: white;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }
}

/* ===== CHART CONTAINERS ===== */
#evolutionChart,
#comparisonChart {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

#evolutionChart .apexcharts-canvas,
#comparisonChart .apexcharts-canvas {
  width: 100% !important;
  max-width: 100% !important;
}

.apexcharts-svg {
  width: 100% !important;
  max-width: 100% !important;
}

.hidden {
  display: none !important;
}

/* Seções do footer */
.footer-sections {
  margin-top: 2.5rem;
}

.footer-section {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 2rem;
  margin-bottom: 1.75rem;
  display: none;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  border: 1px solid rgba(255,255,255,0.1);
  text-align: left;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.footer-section.active {
  display: block;
  animation: fadeIn 0.3s ease-in-out;
}

.footer-section h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  color: white;
  font-weight: 600;
  letter-spacing: -0.02em;
  position: relative;
  padding-bottom: 0.75rem;
}

.footer-section h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: linear-gradient(to right, var(--color-primary-light), var(--color-secondary));
  border-radius: 2px;
}

.footer-section p {
  color: rgba(255,255,255,0.85);
  margin-bottom: 1.25rem;
  font-size: 1rem;
  line-height: 1.8;
}

.content-list {
  margin-bottom: 1.25rem;
  list-style: none;
  padding-left: 0;
}

.content-list li {
  position: relative;
  margin-bottom: 0.875rem;
  padding-left: 2rem;
  font-size: 1rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.6;
}

ol.content-list {
  counter-reset: item;
}

ol.content-list li {
  counter-increment: item;
}

ol.content-list li::before {
  content: counter(item);
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 600;
  color: var(--color-primary-light);
  background: rgba(59,123,234,0.2);
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.875rem;
}

ul.content-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 600;
  color: var(--color-secondary);
  font-size: 1.25rem;
}

ul.content-list.highlight li::before {
  color: var(--color-primary-light);
}

.footer-section a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: var(--transition-fast);
  font-weight: 500;
}

.footer-section a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.footer-section strong {
  color: white;
  font-weight: 600;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== ADSENSE CONTAINERS ===== */
.ad-container {
  margin: 2rem auto;
  text-align: center;
  max-width: 100%;
  position: relative;
}

.ad-container.top-banner {
  margin: 1rem auto;
  padding: 0.5rem 0;
  background: rgba(255,255,255,0.02);
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.ad-container.mid-content {
  margin: 3rem auto;
  padding: 1.5rem;
  background: rgba(255,255,255,0.03);
  border-radius: var(--border-radius);
  border: 1px solid rgba(255,255,255,0.08);
}

.ad-container.bottom-banner {
  margin: 2rem auto 1rem;
  padding: 1rem 0;
  background: rgba(255,255,255,0.02);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.ad-label {
  display: block;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* AdSense responsive optimization */
.adsbygoogle {
  min-height: 50px;
  max-width: 100%;
}

@media (max-width: 768px) {
  .ad-container {
    margin: 1.5rem auto;
    padding: 0.75rem;
  }
  
  .ad-container.top-banner,
  .ad-container.bottom-banner {
    padding: 0.5rem;
  }
}