/**
 * Landing Page - Design System
 * Dark Mode com cor principal #eaa800
 */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
  /* Colors */
  --primary: #eaa800;
  --primary-hover: #d19600;
  --primary-light: #ffc933;
  
  --bg-dark: #0a0a0a;
  --bg-card: #1a1a1a;
  --bg-hover: #2a2a2a;
  --bg-input: #151515;
  
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-muted: #707070;
  
  --border: #333333;
  --border-light: #404040;
  
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  
  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Inter', sans-serif;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
  
  /* Transitions */
  --transition: all 0.3s ease;
  --transition-fast: all 0.15s ease;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #333, #222);
  border-radius: 4px;
  border: 1px solid #1a1a1a;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #444, #333);
}

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

/* Firefox Scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: #333 var(--bg-dark);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-2xl) 0;
}

.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex {
  display: flex;
  gap: var(--spacing-sm);
}

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

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  flex-direction: column;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: var(--text-base);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  color: #000;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(234, 168, 0, 0.4);
}

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

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

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

.btn-outline:hover:not(:disabled) {
  background: var(--primary);
  color: var(--bg-dark);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--text-lg);
}

.btn-block {
  width: 100%;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding-bottom: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: 0;
}

.card-body {
  padding: var(--spacing-md) 0;
}

.card-footer {
  padding-top: var(--spacing-md);
  margin-top: var(--spacing-md);
  border-top: 1px solid var(--border);
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--text-primary);
  font-size: var(--text-sm);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--text-base);
  font-family: var(--font-main);
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(234, 168, 0, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  color: var(--error);
  font-size: var(--text-sm);
  margin-top: var(--spacing-xs);
}

.form-help {
  color: var(--text-muted);
  font-size: var(--text-sm);
  margin-top: var(--spacing-xs);
}

/* ============================================
   BADGES
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary { background: var(--primary); color: var(--bg-dark); }
.badge-success { background: var(--success); color: white; }
.badge-error { background: var(--error); color: white; }
.badge-warning { background: var(--warning); color: var(--bg-dark); }
.badge-info { background: var(--info); color: white; }
.badge-secondary { background: var(--bg-hover); color: var(--text-secondary); }

/* ============================================
   ALERTS
   ============================================ */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  border-left: 4px solid;
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--success);
  color: var(--success);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--error);
  color: var(--error);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--warning);
  color: var(--warning);
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--info);
  color: var(--info);
}

/* ============================================
   MODALS
   ============================================ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: var(--transition);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

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

.modal-title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: var(--text-2xl);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

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

.modal-body {
  padding: var(--spacing-lg);
}

.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border);
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid;
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  min-width: 300px;
  max-width: 400px;
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: start;
  gap: var(--spacing-sm);
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.removing {
  animation: slideOut 0.3s ease forwards;
}

@keyframes slideOut {
  to {
    transform: translateX(400px);
    opacity: 0;
  }
}

.toast-success { border-left-color: var(--success); }
.toast-error { border-left-color: var(--error); }
.toast-warning { border-left-color: var(--warning); }
.toast-info { border-left-color: var(--info); }

.toast-icon {
  font-size: var(--text-xl);
  flex-shrink: 0;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.toast-message {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  font-size: var(--text-lg);
  transition: var(--transition-fast);
}

.toast-close:hover {
  color: var(--text-primary);
}

/* ============================================
   LOADING
   ============================================ */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--bg-hover);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9998;
}

.loading-overlay .loading {
  width: 60px;
  height: 60px;
  border-width: 6px;
}

/* ============================================
   PROGRESS BAR
   ============================================ */
.progress {
  width: 100%;
  height: 12px;
  background: var(--bg-hover);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-full);
  transition: width 0.5s ease;
  position: relative;
  overflow: hidden;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ============================================
   TABLE
   ============================================ */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background: var(--bg-card);
}

th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 2px solid var(--border);
}

td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background: var(--bg-hover);
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-muted); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.hidden { display: none; }
.visible { display: block; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  :root {
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
    --text-3xl: 1.5rem;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .toast-container {
    left: var(--spacing-sm);
    right: var(--spacing-sm);
  }
  
  .toast {
    min-width: auto;
    max-width: 100%;
  }
}