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

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary: #7c3aed;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --dark: #1e293b;
  --light: #f8fafc;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --radius-sm: 0.375rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  color: var(--gray-900);
  min-height: 100vh;
  line-height: 1.5;
  transition: var(--transition);
}

body.dark {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: var(--gray-100);
}

/* ===== HEADER ===== */
.main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 1000;
}

body.dark .main-header {
  background: rgba(15, 23, 42, 0.95);
  border-bottom-color: var(--gray-800);
}

/* LOGO SIMPLIFICADO */
#logo {
  display: flex;
  align-items: center;
  font-size: 1.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  cursor: pointer;
  transition: transform 0.3s ease;
  padding: 0.5rem;
  border-radius: var(--radius);
  user-select: none;
  position: relative;
}

#logo:hover {
  transform: translateY(-2px);
}

#logo:active {
  transform: translateY(0);
}

.header-nav {
  display: flex;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--gray-700);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  transition: var(--transition);
}

.nav-link:hover {
  background: var(--gray-100);
  color: var(--primary);
}

body.dark .nav-link {
  color: var(--gray-300);
}

body.dark .nav-link:hover {
  background: var(--gray-800);
  color: var(--primary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle,
.privacy-toggle {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
}

body.dark .theme-toggle,
body.dark .privacy-toggle {
  background: var(--gray-800);
  border-color: var(--gray-700);
}

.theme-toggle:hover,
.privacy-toggle:hover {
  background: var(--gray-200);
  transform: translateY(-2px);
}

body.dark .theme-toggle:hover,
body.dark .privacy-toggle:hover {
  background: var(--gray-700);
}

.eye-icon {
  fill: currentColor;
}

/* ===== HERO SECTION ===== */
.hero-section {
  padding: 1.5rem 2rem 0.5rem;
  text-align: center;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1rem;
  color: var(--gray-600);
  margin-bottom: 1rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

body.dark .hero-subtitle {
  color: var(--gray-400);
}
.alerta {
  color: #cc0000; /* vermelho forte, profissional */
}

.alerta .link-antigo {
  color: #cc0000;
  text-decoration: underline;
  font-weight: bold;
}


/* ===== PROGRESS INDICATOR ===== */
.progress-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin: 0.75rem auto;
  max-width: 600px;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  position: relative;
}

.step-number {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-200);
  border-radius: var(--radius-full);
  font-weight: 600;
  color: var(--gray-600);
  border: 2px solid transparent;
  transition: var(--transition);
}

body.dark .step-number {
  background: var(--gray-800);
  color: var(--gray-400);
}

.progress-step.active .step-number {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.step-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-500);
}

.progress-step.active .step-text {
  color: var(--primary);
  font-weight: 600;
}

.progress-line {
  width: 4rem;
  height: 2px;
  background: var(--gray-300);
  margin: 0 0.5rem;
}

body.dark .progress-line {
  background: var(--gray-700);
}

/* ===== APP CONTAINER ===== */
.app-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem 1rem;
  margin-top: -0.5rem;
}

.state {
  display: none;
  animation: fadeIn 0.5s ease;
}

.state.active {
  display: block;
}

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

/* ===== INPUT CARD ===== */
.input-card,
.choice-card,
.key-card,
.result-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--gray-200);
  margin-bottom: 2rem;
}

body.dark .input-card,
body.dark .choice-card,
body.dark .key-card,
body.dark .result-card {
  background: var(--gray-900);
  border-color: var(--gray-800);
}

.input-title,
.choice-title,
.key-title,
.result-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.privacy-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  padding: 0.25rem 0.75rem;
  background: rgba(37, 99, 235, 0.1);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--primary);
  font-weight: 500;
}

.privacy-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.input-subtitle,
.choice-subtitle,
.key-subtitle {
  color: var(--gray-600);
  margin-bottom: 1.5rem;
}

body.dark .input-subtitle,
body.dark .choice-subtitle,
body.dark .key-subtitle {
  color: var(--gray-400);
}

/* ===== TEXT INPUT COM OCULTAÇÃO ===== */
.input-with-button {
  position: relative;
  margin-bottom: 1.5rem;
}

#textInput {
  width: 100%;
  min-height: 120px;
  padding: 1.5rem;
  padding-right: 4rem;
  font-size: 1rem;
  line-height: 1.6;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-lg);
  background: var(--gray-50);
  color: var(--gray-900);
  resize: vertical;
  transition: var(--transition);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  position: relative;
  z-index: 2;
}

#textInput::placeholder {
  display: inline-block;
  border-right: rgba(255, 255, 255, 0.75);
  animation: blink 500ms infinite normal, typing 4s 1s normal;
}

.typing-animation::placeholder {
  display: flex;
  overflow: hidden;
  white-space: nowrap;
  border-right: 2px solid rgba(255, 255, 255, 0.75);
  animation: typing 4s steps(40, end), blink 0.75s step-end infinite;
}

@keyframes typing {
  from { width: 0%; }
  to { width: 100%; }
}

@keyframes blink {
  from { border-right-color: rgba(255, 255, 255, 0.75); }
  to { border-right-color: transparent; }
}

body.dark #textInput {
  background: var(--gray-800);
  border-color: var(--gray-700);
  color: var(--gray-100);
}

/* Quando o modo privado está ativo, tornamos o texto invisível */
body.privacy-mode #textInput {
  color: transparent !important;
  caret-color: var(--primary); /* Mantém o cursor visível */
}

#textInput:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}


/* Estilos para dark mode */
body.dark #textInput {
  background: var(--gray-800);
  border-color: var(--gray-700);
  color: var(--gray-100);
}

body.dark #textInput::placeholder {
  color: var(--gray-500);
}

body.dark #textInput.typing-animation::before {
  color: var(--gray-500);
}

/* Quando o modo privado está ativo, tornamos o texto invisível */
body.privacy-mode #textInput {
  color: transparent !important;
  caret-color: var(--primary); /* Mantém o cursor visível */
}

#textInput:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Esconder animação quando em foco */
#textInput:focus::before {
  display: none;
}

/* Display do texto oculto */
.hidden-text-display {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 1.5rem;
  padding-right: 4rem;
  font-size: 1rem;
  line-height: 1.6;
  border-radius: var(--radius-lg);
  background: var(--gray-50);
  color: var(--gray-400);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
  display: none;
}

body.dark .hidden-text-display {
  background: var(--gray-800);
  color: var(--gray-600);
}

body.privacy-mode .hidden-text-display {
  display: block;
}

/* Botão continuar página inicial */
.enter-btn {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  z-index: 3;
}

.enter-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.input-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
}

.char-count {
  color: var(--gray-600);
}

.security-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border-radius: var(--radius-full);
  font-weight: 500;
}

.help-tip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  border-radius: var(--radius);
  font-size: 0.875rem;
}

/* ===== CHOICE BUTTONS ===== */
.choice-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.choice-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
  padding: 1.5rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  background: white;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
}

body.dark .choice-btn {
  background: var(--gray-900);
  border-color: var(--gray-800);
}

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

.encode-btn:hover {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(124, 58, 237, 0.05));
}

.decode-btn:hover {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(37, 99, 235, 0.05));
}

.choice-icon {
  flex-shrink: 0;
}

.choice-content h4 {
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.choice-content p {
  color: var(--gray-600);
  font-size: 0.875rem;
}

body.dark .choice-content p {
  color: var(--gray-400);
}

.choice-arrow {
  margin-left: auto;
  font-size: 1.5rem;
  color: var(--gray-400);
}

/* ===== KEY INPUT COM BOTÃO ===== */
.key-input-wrapper .input-with-button {
  position: relative;
  margin-bottom: 0.5rem;
}

.key-input-wrapper textarea {
  width: 100%;
  min-height: 80px;
  padding: 1.5rem;
  padding-right: 4rem; /* Espaço para o botão */
  font-size: 1.5rem;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.5rem;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-lg);
  background: var(--gray-50);
  color: var(--gray-900);
  resize: none;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}

body.dark .key-input-wrapper textarea {
  background: var(--gray-800);
  border-color: var(--gray-700);
  color: var(--gray-100);
}

.key-input-wrapper textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.key-input-info {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-size: 0.875rem;
}

.key-length {
  color: var(--gray-600);
}

.key-requirements {
  color: var(--gray-500);
}

.key-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.key-action-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  background: white;
  cursor: pointer;
  transition: var(--transition);
}

body.dark .key-action-btn {
  background: var(--gray-900);
  border-color: var(--gray-800);
}

.key-action-btn:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.key-action-icon {
  font-size: 1.5rem;
}

/* ===== SECURITY METER ===== */
.security-meter {
  margin-top: 2rem;
}

.meter-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--gray-600);
  margin-bottom: 0.5rem;
}

.meter-bar {
  height: 8px;
  background: var(--gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

body.dark .meter-bar {
  background: var(--gray-800);
}

.meter-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--danger), var(--warning), var(--success));
  border-radius: var(--radius-full);
  width: 0%;
  transition: width 1s ease;
}

/* ===== RESULT CARD ===== */
.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.result-actions {
  display: flex;
  gap: 0.5rem;
}

.copy-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.copy-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.result-action-btn {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
}

body.dark .result-action-btn {
  background: var(--gray-800);
  border-color: var(--gray-700);
}

.result-action-btn:hover {
  background: var(--gray-200);
}

body.dark .result-action-btn:hover {
  background: var(--gray-700);
}

.result-content {
  margin-bottom: 1.5rem;
}

.result-text {
  padding: 1.5rem;
  background: var(--gray-50);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 1rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 300px;
  overflow-y: auto;
  transition: var(--transition);
}

body.dark .result-text {
  background: var(--gray-800);
  border-color: var(--gray-700);
  color: var(--gray-100);
}

.result-meta {
  display: flex;
  gap: 2rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-200);
}

body.dark .result-meta {
  border-top-color: var(--gray-800);
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.meta-label {
  font-size: 0.875rem;
  color: var(--gray-600);
}

.meta-value {
  font-weight: 600;
  color: var(--gray-900);
}

body.dark .meta-value {
  color: var(--gray-100);
}

.result-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--gray-200);
}

body.dark .result-footer {
  border-top-color: var(--gray-800);
}

.back-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  color: var(--gray-700);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

body.dark .back-btn {
  background: var(--gray-800);
  border-color: var(--gray-700);
  color: var(--gray-300);
}

.back-btn:hover {
  background: var(--gray-200);
  transform: translateY(-2px);
}

body.dark .back-btn:hover {
  background: var(--gray-700);
}

.privacy-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
}

/* ===== FEATURES SECTION ===== */
.features-section {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 3rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-card {
  padding: 2rem;
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  text-align: center;
}

body.dark .feature-card {
  background: var(--gray-900);
  border-color: var(--gray-800);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-card h4 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--gray-600);
  font-size: 0.875rem;
  line-height: 1.6;
}

body.dark .feature-card p {
  color: var(--gray-400);
}

/* ===== FOOTER ===== */
.main-footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: 3rem 2rem;
  margin-top: 4rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
}

.footer-section h4 {
  font-size: 1.125rem;
  margin-bottom: 1rem;
  color: white;
}

.footer-section p {
  margin-bottom: 1rem;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  transition: var(--transition);
}

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

.copyright {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin-top: 1rem;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .main-header {
    padding: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
  }
  
  .header-nav {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: 1rem;
  }
  
  .app-container {
    padding: 0 1rem;
  }
  
  .input-card,
  .choice-card,
  .key-card,
  .result-card {
    padding: 1.5rem;
  }
  
  .result-header {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }
  
  .result-actions {
    justify-content: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .input-title {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .privacy-indicator {
    margin-left: 0;
  }
  
  /* Ajustes específicos para o campo de chave em mobile */
  .key-input-wrapper textarea {
    letter-spacing: 0.25rem;
    font-size: 1.25rem;
    padding: 1rem;
    padding-right: 3.5rem;
  }
  
  .enter-btn {
    width: 2.5rem;
    height: 2.5rem;
    right: 0.5rem;
    bottom: 0.5rem;
  }
  
  .key-actions {
    flex-direction: column;
  }
  
  /* Ajuste para animação em mobile */
  #textInput.typing-animation::before {
    top: 1rem;
    left: 1rem;
    max-width: calc(100% - 4rem);
  }
}

/* ===== UTILITIES ===== */
.hidden {
  display: none !important;
}

.text-muted {
  color: var(--gray-600);
}

body.dark .text-muted {
  color: var(--gray-400);
}

.text-center {
  text-align: center;
}

.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }

.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }