/**
 * Authentique - Framework PHP MVC Leve e Otimizado
 * Arquivo CSS principal - Mobile First
 */

/* Variáveis e configurações gerais */
:root {
  /* Cores principais */
  --primary-color: #4361ee;
  --primary-dark: #3a56d4;
  --primary-light: #6780f5;
  --secondary-color: #3f37c9;
  --accent-color: #4cc9f0;
  
  /* Cores neutras */
  --dark: #1a1b25;
  --gray-900: #2d2e3f;
  --gray-800: #3e4057;
  --gray-700: #565872;
  --gray-600: #6e708c;
  --gray-500: #8385a0;
  --gray-400: #9fa1b8;
  --gray-300: #bbbccf;
  --gray-200: #d7d8e4;
  --gray-100: #f1f1f6;
  --white: #ffffff;
  
  /* Cores de estado */
  --success: #4ade80;
  --warning: #fbbf24;
  --danger: #f87171;
  --info: #60a5fa;
  
  /* Tipografia */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.5;
  
  /* Espaçamento */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Bordas */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  
  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
  
  /* Transições */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  
  /* Container */
  --container-max-width: 1200px;
  --container-padding: var(--spacing-md);
}

/* Reset e base */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  line-height: var(--line-height-base);
  color: var(--gray-900);
  background-color: var(--white);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  font-weight: 600;
  line-height: 1.2;
  color: var(--dark);
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.75rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.125rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

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

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

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

/* Utilitários */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background-color: var(--primary-color);
  margin: var(--spacing-sm) auto 0;
  border-radius: 2px;
}

.lead {
  font-size: 1.125rem;
  font-weight: 300;
  line-height: 1.6;
}

/* Botões */
.btn {
  display: inline-block;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: 0.5rem 1.25rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn:hover, .btn:focus {
  text-decoration: none;
}

.btn:focus {
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(67, 97, 238, 0.25);
}

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

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

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

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

/* Alertas */
.alert {
  position: relative;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border: 1px solid transparent;
  border-radius: var(--border-radius-md);
}

.alert-success {
  color: #0f5132;
  background-color: #d1e7dd;
  border-color: #badbcc;
}

.alert-danger {
  color: #842029;
  background-color: #f8d7da;
  border-color: #f5c2c7;
}

.alert-warning {
  color: #664d03;
  background-color: #fff3cd;
  border-color: #ffecb5;
}

.alert-info {
  color: #055160;
  background-color: #cff4fc;
  border-color: #b6effb;
}

/* Header e navegação */
.site-header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.logo a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.logo a:hover {
  text-decoration: none;
}

.main-nav {
  position: relative;
}

.menu-toggle {
  display: block;
  background: none;
  border: none;
  padding: var(--spacing-xs);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px 0;
  background-color: var(--gray-900);
  transition: all var(--transition-fast);
}

.nav-links {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  width: 200px;
  background-color: var(--white);
  box-shadow: var(--shadow-md);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  margin: 0;
  list-style: none;
}

.nav-links.active {
  display: block;
}

.nav-links li {
  margin-bottom: var(--spacing-sm);
}

.nav-links a {
  display: block;
  padding: var(--spacing-xs) 0;
  color: var(--gray-800);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--primary-color);
}

.dropdown {
  position: relative;
}

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

.dropdown-toggle svg {
  margin-left: var(--spacing-xs);
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  width: 180px;
  background-color: var(--white);
  box-shadow: var(--shadow-md);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  margin: 0;
  list-style: none;
  z-index: 10;
}

.dropdown:hover .dropdown-menu {
  display: block;
}

/* Conteúdo principal */
.site-content {
  min-height: calc(100vh - 150px);
  padding: var(--spacing-md) 0;
}

/* Hero section */
.hero {
  background-color: var(--gray-100);
  padding: var(--spacing-xl) 0;
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.hero-buttons {
  margin-top: var(--spacing-lg);
}

.hero-buttons .btn {
  margin: 0 var(--spacing-xs);
}

/* Features section */
.features {
  padding: var(--spacing-xl) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.feature-card {
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background-color: var(--primary-light);
  color: var(--white);
  border-radius: 50%;
  margin-bottom: var(--spacing-md);
}

.feature-card h3 {
  margin-bottom: var(--spacing-sm);
}

/* CTA section */
.cta {
  background-color: var(--primary-color);
  color: var(--white);
  padding: var(--spacing-xl) 0;
  text-align: center;
  margin: var(--spacing-xl) 0;
}

.cta h2 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.cta p {
  margin-bottom: var(--spacing-lg);
  font-size: 1.125rem;
}

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

.cta .btn:hover {
  background-color: transparent;
  color: var(--white);
}

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

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

.form-control {
  display: block;
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--gray-900);
  background-color: var(--white);
  background-clip: padding-box;
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  color: var(--gray-900);
  background-color: var(--white);
  border-color: var(--primary-light);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(67, 97, 238, 0.25);
}

.form-error {
  display: block;
  margin-top: var(--spacing-xs);
  color: var(--danger);
  font-size: 0.875rem;
}

/* Footer */
.site-footer {
  background-color: var(--gray-900);
  color: var(--gray-300);
  padding: var(--spacing-xl) 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.copyright {
  margin-bottom: var(--spacing-md);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--gray-300);
  margin: 0 var(--spacing-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--white);
  text-decoration: none;
}

/* Media queries para responsividade */
@media (min-width: 576px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .hero h1 {
    font-size: 3rem;
  }
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .menu-toggle {
    display: none;
  }
  
  .nav-links {
    display: flex;
    position: static;
    width: auto;
    background-color: transparent;
    box-shadow: none;
    padding: 0;
  }
  
  .nav-links li {
    margin: 0 var(--spacing-sm);
    margin-bottom: 0;
  }
  
  .footer-content {
    flex-direction: row;
    justify-content: space-between;
  }
  
  .copyright {
    margin-bottom: 0;
  }
}

@media (min-width: 992px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .hero {
    padding: var(--spacing-xxl) 0;
  }
  
  .hero h1 {
    font-size: 3.5rem;
  }
}