:root {
  --bg: #0a0a0a;
  --panel: rgba(20, 20, 20, 0.95);
  --panel-2: rgba(30, 30, 30, 0.95);
  --line: rgba(255, 255, 255, 0.1);
  --muted: #a0a0a0;
  --gold: #d4af37;
  --gold-light: rgba(212, 175, 55, 0.2);
  --radius-lg: 24px;
  --radius-xl: 36px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  --shadow-hover: 0 30px 60px rgba(0, 0, 0, 0.6);
  --glass-border: rgba(255, 255, 255, 0.05);
  --gradient-gold: linear-gradient(135deg, var(--gold) 0%, #f5e7a3 100%);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: white;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

.container {
  max-width: 1320px;
  width: 100%;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 24px;
}

.form-panel,
.preview-panel {
  background: var(--panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.form-panel::before,
.preview-panel::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-light), transparent);
  opacity: 0.5;
}

.form-panel:hover,
.preview-panel:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: var(--gold-light);
}

h2 {
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: white;
}

h2 i {
  color: var(--gold);
  font-size: 1.35rem;
}

#form-container .field {
  margin-bottom: 20px;
  transition: var(--transition);
}

#form-container .field:focus-within {
  transform: translateX(8px);
}

#form-container label {
  display: block;
  color: var(--muted);
  margin-bottom: 6px;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-weight: 500;
  transition: var(--transition);
}

#form-container .field:focus-within label {
  color: var(--gold);
}

.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  text-transform: none !important;
  letter-spacing: 0 !important;
  font-size: 0.95rem !important;
  color: white !important;
}

#form-container input,
#form-container textarea,
#form-container select {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 16px;
  color: white;
  font-size: 0.95rem;
  transition: var(--transition);
  font-family: inherit;
}

#form-container input:hover,
#form-container textarea:hover,
#form-container select:hover {
  border-color: var(--gold);
  background: rgba(30, 30, 30, 0.98);
}

#form-container input:focus,
#form-container textarea:focus,
#form-container select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-light);
  background: rgba(30, 30, 30, 0.98);
}

#form-container input[type="color"] {
  width: 100%;
  height: 48px;
  padding: 3px;
  cursor: pointer;
  border-radius: 12px;
}

#form-container input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

#form-container input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 8px;
}

#form-container input[type="checkbox"] {
  width: auto;
  margin: 0;
  accent-color: var(--gold);
  transform: scale(1.1);
}

#form-container select {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23d4af37' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
}

.color-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.color-field {
  flex: 1;
  min-width: 130px;
}

.logo-preview-box {
  margin-top: 10px;
  padding: 10px;
  background: var(--panel-2);
  border-radius: 8px;
  border: 1px dashed var(--gold-light);
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--muted);
}

.logo-preview-box img {
  max-width: 100%;
  max-height: 68px;
  object-fit: contain;
  display: block;
  border-radius: 6px;
}

.preview-box-empty {
  color: var(--muted);
  font-size: 0.9rem;
}

.actions-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}

.action-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

[data-action],
#btnLimparTudo {
  background: var(--gradient-gold);
  color: #111;
  border: none;
  border-radius: 60px;
  padding: 14px 20px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 0.95rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(212, 175, 55, 0.2);
}

[data-action]:hover,
#btnLimparTudo:hover {
  opacity: 0.96;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

.preview-panel {
  position: sticky;
  top: 20px;
  align-self: flex-start;
  max-height: calc(100vh - 40px);
  display: flex;
  flex-direction: column;
  padding: 0;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 0 20px 0;
  padding: 32px 32px 0 32px;
  gap: 12px;
}

.preview-header h2 {
  margin-bottom: 0;
}

.preview-note {
  font-size: 0.75rem;
  color: var(--muted);
  background: var(--panel-2);
  padding: 6px 12px;
  border-radius: 60px;
  border: 1px solid var(--line);
  font-weight: 500;
}

#preview {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: inset 0 0 0 1px var(--line), inset 0 2px 10px rgba(0,0,0,0.08);
  transition: var(--transition);
  padding: 18px;
  margin: 0 32px 32px 32px;
  min-height: 380px;
  max-height: calc(100vh - 180px);
  overflow: auto;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  position: relative;
}

#preview iframe {
  width: 100%;
  min-height: 320px;
  border: none;
  background: transparent;
  display: block;
  margin: 0 auto;
}

#preview.loading {
  opacity: 0.72;
  pointer-events: none;
}

#preview.loading::after {
  content: '🔄 A gerar preview...';
  position: absolute;
  top: 24px;
  right: 24px;
  background: rgba(0, 0, 0, 0.88);
  color: white;
  padding: 10px 16px;
  border-radius: 60px;
  font-size: 0.9rem;
  z-index: 100;
  border: 1px solid var(--gold-light);
}

.preview-error {
  color: #dc2626;
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  width: 100%;
  font-weight: 600;
}

.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--panel);
  color: var(--gold);
  padding: 14px 28px;
  border-radius: 60px;
  font-weight: 500;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  z-index: 9999;
  opacity: 0;
  transition: all 0.35s ease;
  display: none;
  min-width: 250px;
  text-align: center;
  border: 1px solid var(--gold-light);
}

.toast.show {
  display: block;
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.loading-indicator {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--panel);
  color: white;
  padding: 24px 40px;
  border-radius: 80px;
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--gold-light);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-thumb {
  background: var(--gold);
  border-radius: 4px;
}

@media (max-width: 980px) {
  .container {
    grid-template-columns: 1fr;
  }

  .preview-panel {
    position: static;
    max-height: none;
  }
}

@media (max-width: 768px) {
  body {
    padding: 10px;
  }

  .form-panel,
  .preview-panel {
    padding: 20px;
  }

  .preview-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 24px 0 24px;
  }

  #preview {
    margin: 0 24px 24px 24px;
    min-height: 320px;
  }

  .action-row,
  .color-row {
    grid-template-columns: 1fr;
    flex-direction: column;
  }
}