/* ===== VARIÁVEIS CSS ===== */
:root {
  --bg: #ffffff;
  --text: #111827;
  --card: #f9fafb;
  --border: #d1d5db;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: rgba(37, 99, 235, 0.1);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.1);
  --radius: 8px;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  --transition: all 0.3s ease;
}

/* ===== TEMA ESCURO ===== */
[data-theme="dark"] {
  --bg: #1f2937;
  --text: #f3f4f6;
  --card: #374151;
  --border: #4b5563;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-light: rgba(59, 130, 246, 0.15);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

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

/* ===== TIPOGRAFIA ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; margin-bottom: 1rem; }
h3 { font-size: 1.125rem; margin-bottom: 1rem; }
h4 { font-size: 1rem; }

p {
  margin-bottom: 1rem;
  opacity: 0.9;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

code {
  font-family: "Fira Code", "Consolas", monospace;
  background: var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.875rem;
  cursor: pointer;
}

/* ===== LAYOUT ===== */
.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* ===== HEADER ===== */
header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.logo svg {
  color: var(--primary);
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  padding: 8px;
  border-radius: var(--radius);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background: var(--border);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

/* ===== NAVEGAÇÃO POR ABAS ===== */
.tab-nav {
  display: flex;
  gap: 8px;
  padding: 16px 20px;
  overflow-x: auto;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow);
}

.tab-btn {
  padding: 10px 16px;
  background: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: all 0.2s;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tab-btn:hover {
  background: var(--border);
}

.tab-btn.active {
  background: var(--primary);
  color: white;
}

.tab-btn.active:hover {
  background: var(--primary-hover);
}

.tab-btn svg {
  width: 16px;
  height: 16px;
}

/* ===== CONTEÚDO DAS ABAS ===== */
.tab-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== SEÇÕES ===== */
.section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.section h2 {
  margin-bottom: 0.5rem;
  color: var(--text);
}

.section h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 1rem;
  color: var(--text);
}

.section h3 svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
}

/* ===== FORMULÁRIOS ===== */
.form-group {
  margin-bottom: 16px;
}

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

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--text);
  font-size: 0.9375rem;
  font-family: inherit;
  transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text);
  opacity: 0.5;
}

.form-group textarea {
  min-height: 80px;
  resize: vertical;
}

.form-row {
  display: flex;
  gap: 16px;
}

@media (max-width: 768px) {
  .form-row {
    flex-direction: column;
    gap: 0;
  }
}

/* ===== TABELA DE ITENS ===== */
.items-table {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.item-row {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.item-row .form-group {
  flex: 1;
  min-width: 120px;
  margin-bottom: 0;
}

.item-row .form-group input {
  padding: 8px 10px;
  font-size: 0.875rem;
}

.item-row .form-group label {
  display: none;
}

.btn-remove {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--danger);
  padding: 8px;
  border-radius: var(--radius);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
}

.btn-remove:hover {
  background: rgba(239, 68, 68, 0.1);
}

.btn-remove svg {
  width: 16px;
  height: 16px;
}

@media (max-width: 768px) {
  .item-row {
    flex-direction: column;
    gap: 8px;
    border: 1px solid var(--border);
    padding: 12px;
    background: var(--card);
    border-radius: var(--radius);
  }
  
  .item-row .form-group {
    width: 100%;
    margin-bottom: 0;
  }
  
  .item-row .form-group label {
    display: block;
    margin-bottom: 4px;
    font-weight: 500;
  }
  
  .item-row .form-group input {
    padding: 8px 10px;
    font-size: 0.875rem;
  }
  
  .btn-remove {
    align-self: flex-end;
    margin-top: -36px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius) 0 var(--radius) 0;
  }
}

/* ===== TOTAL ===== */
.total-row {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
  padding: 12px;
  font-size: 1.25rem;
  font-weight: 600;
  border-top: 1px solid var(--border);
  margin-top: 12px;
}

.total-row span:first-child {
  color: var(--text);
  opacity: 0.7;
}

.total-row span:last-child {
  color: var(--primary);
}

/* ===== BOTÕES ===== */
.actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 20px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 500;
  font-family: inherit;
  transition: all 0.2s;
  min-height: 40px;
}

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

.btn svg {
  width: 16px;
  height: 16px;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--border);
}

.btn-tertiary {
  background: none;
  color: var(--danger);
  border: 1px solid var(--danger);
}

.btn-tertiary:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.1);
}

.btn-small {
  padding: 6px 12px;
  font-size: 0.8125rem;
  min-height: 32px;
}

@media (max-width: 480px) {
  .actions {
    flex-direction: column;
    gap: 8px;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ===== CARDS DE DOAÇÃO ===== */
.donation-options {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.donation-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.donation-card h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 1rem;
}

.donation-card h3 svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
}

.donation-card p {
  margin-bottom: 0;
  opacity: 0.9;
}

.donation-card code {
  user-select: none;
}

/* ===== PREVIEW DA LOGO ===== */
#logoPreview {
  max-width: 150px;
  margin-top: 15px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

/* ===== INPUT DE COR ===== */
.form-group input[type="color"] {
  width: auto;
  height: 40px;
  padding: 2px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  background: none;
}

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

.form-group input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: var(--radius);
}

/* ===== FOOTER ===== */
footer {
  text-align: center;
  padding: 20px;
  color: var(--text);
  opacity: 0.7;
  font-size: 0.875rem;
  margin-top: 40px;
}

/* ===== UTILITÁRIOS ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

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

::-webkit-scrollbar-thumb:hover {
  background: var(--text);
  opacity: 0.3;
}

/* ===== ANIMAÇÕES ===== */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.pulse {
  animation: pulse 2s infinite;
}

/* ===== RESPONSIVIDADE GERAL ===== */
@media (max-width: 768px) {
  .header-content {
    padding: 0 15px;
  }
  
  .tab-nav {
    padding: 12px 15px;
  }
  
  main {
    padding: 15px;
  }
  
  .section {
    padding: 16px;
  }
  
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
}

@media (max-width: 480px) {
  .header-content {
    padding: 0 10px;
  }
  
  .logo h1 {
    font-size: 1.25rem;
  }
  
  .tab-nav {
    padding: 10px;
  }
  
  .tab-btn {
    padding: 8px 12px;
    font-size: 0.8125rem;
  }
  
  .section {
    padding: 12px;
  }
  
  .form-group input,
  .form-group textarea {
    padding: 8px 10px;
    font-size: 0.875rem;
  }
  
  .total-row {
    padding: 10px;
    font-size: 1.125rem;
  }
  
  .actions {
    margin-top: 16px;
  }
  
  footer {
    padding: 16px 10px;
  }
}

/* ===== IMPRESSÃO (PARA PDF) ===== */
@media print {
  .theme-toggle,
  .tab-nav,
  .actions,
  footer {
    display: none !important;
  }
  
  .tab-content {
    display: block !important;
  }
  
  .section {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
  }
  
  body {
    background: white;
    color: black;
  }
}