/* ========================================
   Encontros Tech - Sistema Visual Customizado
   Inspirado no design moderno do Sympla
   ======================================== */

/* Importar Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ========================================
   CSS RESET E VARIABLES
   ======================================== */
:root {
  /* Paleta de Cores Principal */
  --primary-blue: #1a73e8;
  --primary-blue-dark: #1557b0;
  --primary-blue-light: #4285f4;
  
  /* Cores Secundárias */
  --secondary-purple: #6c5ce7;
  --secondary-green: #00b894;
  --secondary-orange: #fd79a8;
  
  /* Cores Neutras */
  --white: #ffffff;
  --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;
  
  /* Cores de Status */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: var(--primary-blue);
  
  /* Tipografia */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Espaçamentos */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Bordas e Sombras */
  --border-radius-sm: 0.375rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background-color: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.6;
}

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

/* ========================================
   COMPONENTES BASE
   ======================================== */

/* Navbar Modernizada */
.navbar-modern {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-md) 0;
}

.navbar-modern .navbar-brand {
  font-weight: 700;
  font-size: var(--font-size-xl);
  color: var(--white) !important;
  text-decoration: none;
}

.navbar-modern .navbar-brand:hover {
  color: var(--gray-100) !important;
}

/* Container Principal */
.main-container {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  margin-top: var(--spacing-xl);
  padding: var(--spacing-xl);
}

/* ========================================
   CARDS DE EVENTOS
   ======================================== */
.event-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  overflow: hidden;
  height: 100%;
  border: none;
}

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

.event-card-header {
  height: 200px;
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-purple) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.event-card-header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(255, 255, 255, 0.1) 10px,
    rgba(255, 255, 255, 0.1) 20px
  );
  animation: move-pattern 20s linear infinite;
}

@keyframes move-pattern {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.event-card-icon {
  font-size: 3rem;
  color: var(--white);
  z-index: 2;
  position: relative;
}

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

.event-card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

.event-card-date {
  color: var(--primary-blue);
  font-weight: 500;
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
}

.event-card-location {
  color: var(--gray-600);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-md);
}

.event-card-description {
  color: var(--gray-700);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  margin-bottom: var(--spacing-md);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.event-card-technologies {
  margin-bottom: var(--spacing-md);
}

/* ========================================
   BADGES DE TECNOLOGIA
   ======================================== */
.tech-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  margin-right: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Cores específicas por tecnologia */
.tech-badge[data-tech*="python"] { background: #3776ab20; color: #3776ab; }
.tech-badge[data-tech*="javascript"] { background: #f7df1e20; color: #d4ac0d; }
.tech-badge[data-tech*="react"] { background: #61dafb20; color: #0d7377; }
.tech-badge[data-tech*="node"] { background: #68a06320; color: #68a063; }
.tech-badge[data-tech*="docker"] { background: #0db7ed20; color: #0db7ed; }
.tech-badge[data-tech*="kubernetes"] { background: #326ce520; color: #326ce5; }
.tech-badge[data-tech*="aws"] { background: #ff990020; color: #ff9900; }
.tech-badge[data-tech*="java"] { background: #ed8b0020; color: #ed8b00; }
.tech-badge[data-tech*="go"] { background: #00add820; color: #00add8; }
.tech-badge[data-tech*="rust"] { background: #00000020; color: #000000; }

/* Badge padrão */
.tech-badge:not([data-tech]) {
  background: var(--gray-200);
  color: var(--gray-700);
}

/* ========================================
   BOTÕES MODERNOS
   ======================================== */
.btn-modern {
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-md);
  transition: all 0.3s ease;
  border: none;
  font-size: var(--font-size-sm);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.btn-primary-modern {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary-modern {
  background: var(--white);
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.btn-secondary-modern:hover {
  background: var(--primary-blue);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline-modern {
  background: transparent;
  color: var(--gray-600);
  border: 2px solid var(--gray-300);
}

.btn-outline-modern:hover {
  background: var(--gray-100);
  border-color: var(--gray-400);
  color: var(--gray-700);
}

/* ========================================
   FORMULÁRIOS MODERNOS
   ======================================== */
.form-modern .form-label {
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: var(--spacing-xs);
}

.form-modern .form-control,
.form-modern .form-select {
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  transition: all 0.3s ease;
}

.form-modern .form-control:focus,
.form-modern .form-select:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
  outline: none;
}

.card-modern {
  border: none;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.card-modern .card-header {
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
  border-bottom: 2px solid var(--gray-200);
  padding: var(--spacing-lg);
}

.card-modern .card-body {
  padding: var(--spacing-xl);
}

/* ========================================
   FILTROS E BUSCA
   ======================================== */
.filters-section {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

/* ========================================
   ALERTAS MODERNOS
   ======================================== */
.alert-modern {
  border: none;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
}

.alert-success-modern {
  background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
  color: var(--white);
}

/* ========================================
   ESTADOS VAZIOS
   ======================================== */
.empty-state {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--gray-500);
}

.empty-state h5 {
  color: var(--gray-700);
  font-weight: 600;
}

/* ========================================
   ANIMAÇÕES E TRANSIÇÕES
   ======================================== */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

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

/* ========================================
   RESPONSIVIDADE E MELHORIAS MOBILE
   ======================================== */

/* Tablets e Desktop pequeno */
@media (max-width: 991px) {
  .event-detail-header {
    padding: 3rem 0;
  }
  
  .event-detail-icon {
    font-size: 3rem;
  }
  
  .filters-section .row {
    gap: 1rem;
  }
  
  .action-buttons {
    position: static;
    margin-top: var(--spacing-lg);
  }
}

/* Tablets */
@media (max-width: 768px) {
  .main-container {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
  }
  
  .event-card-header {
    height: 150px;
  }
  
  .event-card-icon {
    font-size: 2rem;
  }
  
  .btn-modern {
    width: 100%;
    margin-bottom: var(--spacing-sm);
  }
  
  .filters-section {
    padding: var(--spacing-md);
  }
  
  .filters-section .col-md-5,
  .filters-section .col-md-4,
  .filters-section .col-md-3 {
    width: 100%;
    margin-bottom: var(--spacing-sm);
  }
  
  .event-detail-header {
    padding: 2rem 0;
  }
  
  .event-detail-header h1 {
    font-size: 2rem;
  }
  
  .breadcrumb-modern {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .info-card {
    padding: var(--spacing-md);
  }
}

/* Mobile */
@media (max-width: 576px) {
  :root {
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
    --font-size-3xl: 1.5rem;
    --font-size-4xl: 1.875rem;
  }
  
  .navbar-modern {
    padding: var(--spacing-sm) 0;
  }
  
  .navbar-modern .navbar-brand {
    font-size: var(--font-size-lg);
  }
  
  .event-card {
    margin-bottom: var(--spacing-md);
  }
  
  .event-card-header {
    height: 120px;
  }
  
  .event-card-icon {
    font-size: 1.5rem;
  }
  
  .event-card-body {
    padding: var(--spacing-md);
  }
  
  .event-card-title {
    font-size: var(--font-size-base);
  }
  
  .filters-section h5 {
    font-size: var(--font-size-lg);
  }
  
  .tech-badge {
    font-size: 0.7rem;
    padding: 0.15rem var(--spacing-xs);
  }
  
  .tech-badge-large {
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .event-detail-header {
    padding: 1.5rem 0;
  }
  
  .event-detail-header .display-4 {
    font-size: 1.75rem;
  }
  
  .event-detail-icon {
    font-size: 2.5rem;
  }
  
  .info-item {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
  
  .info-item i {
    margin-bottom: var(--spacing-xs);
  }
  
  /* Melhorias na navegação mobile */
  .navbar-toggler {
    border: none;
    padding: 0.25rem 0.5rem;
  }
  
  .navbar-toggler:focus {
    box-shadow: none;
  }
  
  /* Botões mais acessíveis no mobile */
  .btn-modern {
    min-height: 44px; /* Tamanho mínimo recomendado para toque */
    font-size: var(--font-size-sm);
  }
  
  /* Cards de estatísticas mobile */
  .main-container .row .col-md-4 {
    margin-bottom: var(--spacing-md);
  }
  
  /* Formulários mobile */
  .form-modern .form-control,
  .form-modern .form-select {
    min-height: 44px;
  }
  
  /* Breadcrumbs mobile */
  .breadcrumb-modern .breadcrumb-item {
    font-size: var(--font-size-xs);
  }
}

/* Mobile muito pequeno */
@media (max-width: 375px) {
  .container {
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
  }
  
  .main-container,
  .filters-section,
  .info-card {
    margin-left: calc(-1 * var(--spacing-xs));
    margin-right: calc(-1 * var(--spacing-xs));
    border-radius: var(--border-radius-sm);
  }
  
  .event-card-title {
    line-height: 1.3;
  }
}

/* Melhorias de Performance */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .event-card:hover {
    transform: none;
  }
  
  .btn-modern:hover {
    transform: none;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --primary-blue: #0000ff;
    --gray-600: #000000;
    --gray-700: #000000;
    --gray-800: #000000;
    --gray-900: #000000;
  }
  
  .event-card {
    border: 2px solid var(--gray-900);
  }
  
  .btn-modern {
    border: 2px solid currentColor;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    /* Invertendo as cores para o modo escuro */
    --gray-50: #0f172a;       /* Fundo principal escuro */
    --gray-100: #1e293b;      /* Fundo de componentes */
    --gray-200: #334155;      /* Bordas e divisórias */
    --gray-300: #475569;      /* Texto de placeholder */
    --gray-400: #64748b;      /* Texto sutil */
    --gray-500: #94a3b8;      /* Texto secundário */
    --gray-600: #cbd5e1;      /* Texto normal */
    --gray-700: #e2e8f0;      /* Texto de ênfase */
    --gray-800: #f1f5f9;      /* Títulos */
    --gray-900: #f8fafc;      /* Títulos principais */
    --white: #1e293b;         /* Cor de fundo para cards e containers */

    /* Ajustar cores primárias para melhor visibilidade */
    --primary-blue: #4285f4;       /* Azul mais brilhante */
    --primary-blue-dark: #1a73e8;
    --primary-blue-light: #689dff;

    /* Ajustar sombras para o fundo escuro */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.2);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.25);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.25);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.3), 0 8px 10px -6px rgb(0 0 0 / 0.25);
  }

  .btn-outline-modern {
    color: var(--gray-300);
    border-color: var(--gray-300);
  }

  .btn-outline-modern:hover {
    background: var(--gray-200);
    border-color: var(--gray-200);
    color: var(--gray-800);
  }

  .card-modern .card-header {
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
    border-bottom: 1px solid var(--gray-300);
  }

  .text-muted {
    color: var(--gray-500) !important;
  }

  /* Corrigir contraste dos badges em modo escuro */
  .tech-badge:not([data-tech]) {
    background: var(--gray-200);
    color: var(--gray-700);
  }
  .tech-badge[data-tech*="python"] { background: #3776ab40; color: #a2c6e8; }
  .tech-badge[data-tech*="javascript"] { background: #f7df1e40; color: #f0e68c; }
  .tech-badge[data-tech*="react"] { background: #61dafb40; color: #a5e8fb; }
  .tech-badge[data-tech*="node"] { background: #68a06340; color: #a3d9a5; }
  .tech-badge[data-tech*="docker"] { background: #0db7ed40; color: #99d9ea; }
  .tech-badge[data-tech*="kubernetes"] { background: #326ce540; color: #a8bdf0; }
  .tech-badge[data-tech*="aws"] { background: #ff990040; color: #ffcc80; }
  .tech-badge[data-tech*="java"] { background: #ed8b0040; color: #ffc966; }
  .tech-badge[data-tech*="go"] { background: #00add840; color: #88dbe7; }
  .tech-badge[data-tech*="rust"] { background: #ffffff40; color: #ffffff; }
}

/* Print Styles */
@media print {
  .navbar-modern,
  .filters-section,
  .action-buttons,
  .btn-modern {
    display: none;
  }
  
  .event-card,
  .info-card,
  .main-container {
    box-shadow: none;
    border: 1px solid #ccc;
  }
  
  .event-detail-header {
    background: none !important;
    color: black !important;
  }
}