/* ================================================================
   LicitAI — Design System
   Dark mode premium com glassmorphism, animações e tipografia Inter
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ----------------------------------------------------------------
   1. TOKENS / VARIÁVEIS CSS
   ---------------------------------------------------------------- */
:root {
  /* Paleta Principal */
  --color-bg-900:    #0A0F1E;
  --color-bg-800:    #0F172A;
  --color-bg-700:    #1E293B;
  --color-bg-600:    #293548;

  /* Indigo — Primária */
  --color-primary:        #6366F1;
  --color-primary-light:  #818CF8;
  --color-primary-dark:   #4F46E5;
  --color-primary-glow:   rgba(99, 102, 241, 0.25);

  /* Esmeralda — Sucesso */
  --color-success:        #10B981;
  --color-success-light:  #34D399;
  --color-success-glow:   rgba(16, 185, 129, 0.2);

  /* Âmbar — Alerta */
  --color-warning:        #F59E0B;
  --color-warning-light:  #FCD34D;
  --color-warning-glow:   rgba(245, 158, 11, 0.2);

  /* Vermelho — Erro */
  --color-danger:         #EF4444;
  --color-danger-light:   #FCA5A5;
  --color-danger-glow:    rgba(239, 68, 68, 0.2);

  /* Textos */
  --color-text-100:  #F1F5F9;
  --color-text-200:  #CBD5E1;
  --color-text-400:  #94A3B8;
  --color-text-600:  #64748B;

  /* Glassmorphism */
  --glass-bg:          rgba(255, 255, 255, 0.04);
  --glass-border:      rgba(255, 255, 255, 0.08);
  --glass-bg-hover:    rgba(255, 255, 255, 0.07);
  --glass-shadow:      0 8px 32px rgba(0, 0, 0, 0.4);

  /* Tipografia */
  --font-body:     'Inter', system-ui, sans-serif;
  --font-heading:  'Outfit', system-ui, sans-serif;

  /* Espaçamento */
  --spacing-xs:   0.25rem;
  --spacing-sm:   0.5rem;
  --spacing-md:   1rem;
  --spacing-lg:   1.5rem;
  --spacing-xl:   2rem;
  --spacing-2xl:  3rem;

  /* Border Radius */
  --radius-sm:  0.375rem;
  --radius-md:  0.75rem;
  --radius-lg:  1rem;
  --radius-xl:  1.5rem;
  --radius-full: 9999px;

  /* Transições */
  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Sidebar */
  --sidebar-width: 260px;
}

/* ----------------------------------------------------------------
   2. RESET & BASE
   ---------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-900);
  color: var(--color-text-100);
  font-size: 0.9375rem;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar personalizada */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg-800); }
::-webkit-scrollbar-thumb { background: var(--color-bg-600); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }

/* ----------------------------------------------------------------
   3. TIPOGRAFIA
   ---------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text-100);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

p { color: var(--color-text-200); }

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

/* ----------------------------------------------------------------
   4. GLASSMORPHISM CARD
   ---------------------------------------------------------------- */
.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--glass-shadow);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}

.card-body { padding: var(--spacing-xl); }
.card-header {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--glass-border);
}

/* ----------------------------------------------------------------
   5. BOTÕES
   ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-normal);
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  box-shadow: 0 4px 15px var(--color-primary-glow);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--color-primary-glow);
  color: #fff;
}

.btn-ghost {
  background: var(--glass-bg);
  color: var(--color-text-200);
  border-color: var(--glass-border);
}
.btn-ghost:hover {
  background: var(--glass-bg-hover);
  color: var(--color-text-100);
}

.btn-danger {
  background: linear-gradient(135deg, var(--color-danger), #DC2626);
  color: #fff;
}
.btn-danger:hover { opacity: 0.9; }

.btn-sm { padding: 0.375rem 0.875rem; font-size: 0.875rem; }
.btn-lg { padding: 0.875rem 2rem; font-size: 1rem; }
.btn-full { width: 100%; }

/* Estado de loading no botão */
.btn.loading {
  pointer-events: none;
  opacity: 0.7;
}
.btn.loading::after {
  content: '';
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-left: var(--spacing-sm);
}

/* ----------------------------------------------------------------
   6. FORMULÁRIOS
   ---------------------------------------------------------------- */
.form-group { margin-bottom: var(--spacing-lg); }

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-200);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.02em;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--color-text-100);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-control::placeholder { color: var(--color-text-600); }

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
  background: rgba(255,255,255,0.07);
}

.form-control.is-invalid {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px var(--color-danger-glow);
}

.form-control select,
select.form-control {
  cursor: pointer;
  appearance: none;
}

/* Fix para legibilidade do select nativo no modo escuro */
select option {
  background-color: var(--color-bg-800);
  color: var(--color-text-100);
}

.invalid-feedback {
  color: var(--color-danger-light);
  font-size: 0.8125rem;
  margin-top: var(--spacing-xs);
}

/* ----------------------------------------------------------------
   7. ALERTS / FLASH MESSAGES
   ---------------------------------------------------------------- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  border-left: 3px solid;
  font-size: 0.9rem;
  animation: slideDown 0.3s ease;
}

.alert-error   { background: var(--color-danger-glow);  border-color: var(--color-danger);  color: var(--color-danger-light); }
.alert-success { background: var(--color-success-glow); border-color: var(--color-success); color: var(--color-success-light); }
.alert-warning { background: var(--color-warning-glow); border-color: var(--color-warning); color: var(--color-warning-light); }

/* ----------------------------------------------------------------
   8. BADGES
   ---------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.badge-primary { background: var(--color-primary-glow); color: var(--color-primary-light); border: 1px solid rgba(99,102,241,0.3); }
.badge-success { background: var(--color-success-glow); color: var(--color-success-light); border: 1px solid rgba(16,185,129,0.3); }
.badge-warning { background: var(--color-warning-glow); color: var(--color-warning-light); border: 1px solid rgba(245,158,11,0.3); }
.badge-danger  { background: var(--color-danger-glow);  color: var(--color-danger-light);  border: 1px solid rgba(239,68,68,0.3); }

/* Badge com indicador pulsante */
.badge-pulse::before {
  content: '';
  width: 6px; height: 6px;
  background: currentColor;
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

/* ----------------------------------------------------------------
   9. LAYOUT PRINCIPAL (SIDEBAR + MAIN)
   ---------------------------------------------------------------- */
.app-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: 1fr;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  background: linear-gradient(180deg, var(--color-bg-800) 0%, var(--color-bg-900) 100%);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  padding: var(--spacing-xl) 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0 var(--spacing-xl) var(--spacing-xl);
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: var(--spacing-lg);
}

.sidebar-logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 4px 15px var(--color-primary-glow);
}

.sidebar-logo-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-text-100), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-section {
  padding: 0 var(--spacing-md);
  flex: 1;
}

.nav-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-600);
  padding: var(--spacing-sm) var(--spacing-md);
  margin-bottom: var(--spacing-xs);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0.625rem var(--spacing-md);
  border-radius: var(--radius-md);
  color: var(--color-text-400);
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
  margin-bottom: 2px;
  text-decoration: none;
}

.nav-item:hover {
  background: var(--glass-bg);
  color: var(--color-text-100);
}

.nav-item.active {
  background: var(--color-primary-glow);
  color: var(--color-primary-light);
  border: 1px solid rgba(99,102,241,0.2);
}

.nav-icon {
  width: 20px; height: 20px;
  flex-shrink: 0;
  opacity: 0.8;
}

/* Área principal */
.main-content {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--color-bg-800);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.user-avatar {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  cursor: pointer;
  transition: box-shadow var(--transition-fast);
}
.user-avatar:hover { box-shadow: 0 0 0 3px var(--color-primary-glow); }

.page-content {
  padding: var(--spacing-xl);
  flex: 1;
  overflow-y: auto;
}

/* ----------------------------------------------------------------
   10. LAYOUT DE AUTENTICAÇÃO
   ---------------------------------------------------------------- */
.auth-layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--color-bg-900);
}

.auth-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-2xl);
  background: linear-gradient(135deg, var(--color-bg-800) 0%, var(--color-bg-900) 100%);
  border-right: 1px solid var(--glass-border);
  position: relative;
  overflow: hidden;
}

/* Orbs decorativos no fundo */
.auth-left::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(99,102,241,0.15) 0%, transparent 70%);
  top: -100px; left: -100px;
  pointer-events: none;
}

.auth-left::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(16,185,129,0.1) 0%, transparent 70%);
  bottom: -50px; right: -50px;
  pointer-events: none;
}

.auth-brand {
  position: relative;
  z-index: 1;
  text-align: center;
}

.auth-logo {
  width: 72px; height: 72px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto var(--spacing-lg);
  box-shadow: 0 8px 32px var(--color-primary-glow);
  animation: float 3s ease-in-out infinite;
}

.auth-tagline {
  font-size: 1.5rem;
  font-weight: 800;
  font-family: var(--font-heading);
  background: linear-gradient(135deg, var(--color-text-100), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-md);
}

.auth-description {
  color: var(--color-text-400);
  font-size: 0.9375rem;
  max-width: 340px;
  line-height: 1.7;
}

.auth-features {
  margin-top: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.auth-feature-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--color-text-400);
  font-size: 0.875rem;
}

.auth-feature-icon {
  width: 32px; height: 32px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.auth-right {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
}

.auth-form-container {
  width: 100%;
  max-width: 420px;
}

.auth-form-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
}

.auth-form-subtitle {
  color: var(--color-text-400);
  font-size: 0.9375rem;
  margin-bottom: var(--spacing-xl);
}

/* ----------------------------------------------------------------
   11. GRID UTILITÁRIOS
   ---------------------------------------------------------------- */
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); gap: var(--spacing-lg); }
.grid-3 { grid-template-columns: repeat(3, 1fr); gap: var(--spacing-lg); }
.grid-4 { grid-template-columns: repeat(4, 1fr); gap: var(--spacing-lg); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.text-sm  { font-size: 0.875rem; }
.text-xs  { font-size: 0.75rem; }
.text-muted { color: var(--color-text-400); }
.text-center { text-align: center; }

.divider {
  height: 1px;
  background: var(--glass-border);
  margin: var(--spacing-lg) 0;
}

/* ----------------------------------------------------------------
   12. STAT CARDS (Dashboard)
   ---------------------------------------------------------------- */
.stat-card {
  padding: var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 100px; height: 100px;
  border-radius: 50%;
  opacity: 0.1;
  transform: translate(30%, -30%);
}

.stat-card.primary::before { background: var(--color-primary); }
.stat-card.success::before { background: var(--color-success); }
.stat-card.warning::before { background: var(--color-warning); }
.stat-card.danger::before  { background: var(--color-danger); }

.stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-600);
  margin-bottom: var(--spacing-sm);
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.stat-icon {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  font-size: 1.5rem;
  opacity: 0.6;
}

/* ----------------------------------------------------------------
   13. ANIMAÇÕES
   ---------------------------------------------------------------- */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

@keyframes pulse {
  0%   { opacity: 1; transform: scale(1); }
  50%  { opacity: 0.5; transform: scale(0.8); }
  100% { opacity: 1; transform: scale(1); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes shimmer {
  from { background-position: -200% 0; }
  to   { background-position: 200% 0; }
}

/* Skeleton Loader */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-700) 25%,
    var(--color-bg-600) 50%,
    var(--color-bg-700) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

/* ----------------------------------------------------------------
   14. RESPONSIVIDADE
   ---------------------------------------------------------------- */
@media (max-width: 1024px) {
  .auth-layout { grid-template-columns: 1fr; }
  .auth-left { display: none; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .app-layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ----------------------------------------------------------------
   15. SCROLLBAR OCULTO PARA SIDEBAR
   ---------------------------------------------------------------- */
.sidebar { scrollbar-width: thin; scrollbar-color: var(--color-bg-600) transparent; }
.sidebar::-webkit-scrollbar { width: 3px; }