/* E-KIDS PRO MVP - Estilos Principais */

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

:root {
  /* Cores principais */
  --primary-color: #4A90E2;
  --secondary-color: #7B68EE;
  --success-color: #50C878;
  --warning-color: #FFB84D;
  --danger-color: #FF6B6B;

  /* Cores neutras */
  --bg-color: #F8F9FA;
  --card-bg: #FFFFFF;
  --text-primary: #2C3E50;
  --text-secondary: #7F8C8D;
  --border-color: #E1E8ED;

  /* Espaçamentos */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Bordas */
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;

  /* Sombras */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 20px rgba(0,0,0,0.15);
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
}

/* Loading */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Screens */
.screen {
  min-height: 100vh;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

/* Auth Screen */
.auth-container {
  max-width: 450px;
  margin: 0 auto;
  padding: var(--spacing-xl);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.logo {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.logo h1 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.tagline {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.tab {
  flex: 1;
  padding: var(--spacing-sm);
  border: 2px solid var(--border-color);
  background: white;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.3s;
}

.tab:hover {
  border-color: var(--primary-color);
}

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

.auth-form {
  background: var(--card-bg);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.auth-form h2 {
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.auth-form input {
  width: 100%;
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: 1rem;
}

.auth-form input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.auth-footer {
  margin-top: var(--spacing-lg);
  text-align: center;
  color: var(--text-secondary);
}

/* Buttons */
.btn-primary {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-primary:hover {
  background: #357ABD;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: white;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s;
}

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

.btn-create {
  width: 100%;
  padding: var(--spacing-md);
  background: var(--success-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: var(--spacing-lg);
  transition: all 0.3s;
}

.btn-create:hover {
  background: #45B56A;
  transform: translateY(-2px);
}

.btn-link {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--primary-color);
  text-decoration: none;
  border: 2px solid var(--primary-color);
  border-radius: var(--border-radius-sm);
  transition: all 0.3s;
}

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

.btn-icon {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--spacing-xs);
  transition: transform 0.2s;
}

.btn-icon:hover {
  transform: scale(1.1);
}

/* Children Grid */
.children-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.child-card {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: all 0.3s;
  text-align: center;
}

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

.child-avatar {
  font-size: 4rem;
  margin-bottom: var(--spacing-sm);
}

.child-card h3 {
  margin-bottom: var(--spacing-xs);
}

.child-card .fp-badge {
  display: inline-block;
  background: var(--warning-color);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-content h2 {
  margin-bottom: var(--spacing-lg);
}

.avatar-selector {
  margin: var(--spacing-lg) 0;
}

.avatars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

.avatars label {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-size: 2rem;
  transition: all 0.3s;
}

.avatars label:hover {
  border-color: var(--primary-color);
  background: var(--bg-color);
}

.avatars input[type="radio"] {
  display: none;
}

.avatars input[type="radio"]:checked + label,
.avatars label:has(input:checked) {
  border-color: var(--primary-color);
  background: var(--primary-color);
  color: white;
}

.modal-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.modal-actions button {
  flex: 1;
}

/* Parent Link */
.parent-link {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* Error Message */
.error-message {
  color: var(--danger-color);
  font-size: 0.9rem;
  margin-top: var(--spacing-sm);
  min-height: 20px;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: var(--spacing-sm);
  }

  .children-grid {
    grid-template-columns: 1fr;
  }

  .auth-container {
    padding: var(--spacing-sm);
  }
}