:root {
  --primary-color: #0284c7;
  --primary-dark: #0369a1;
  --bg-color: #f8fafc;
  --bg-alt: #f1f5f9;
  --card-bg: #ffffff;
  --text-color: #334155;
  --text-light: #64748b;
  --border-color: #e2e8f0;
  
  --status-waiting: #f59e0b;
  --status-approved: #10b981;
  --status-rejected: #ef4444;
  --status-neutral: #64748b;

  --radius: 12px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: #ffffff;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 600;
  transition: color 0.3s;
}

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

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #fff;
  padding: 80px 20px;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.badge {
  background: var(--primary-color);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 2.5rem;
  margin: 20px 0 10px;
}

.hero p {
  color: #94a3b8;
  font-size: 1.2rem;
}

.team-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 15px;
  margin: 30px 0;
}

.btn-primary {
  display: inline-block;
  background: var(--primary-color);
  color: #fff;
  padding: 12px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  transition: background 0.3s;
}

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

/* Seções Gerais */
.section {
  padding: 60px 0;
}

.bg-alt {
  background-color: var(--bg-alt);
}

.section-title {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 10px;
  color: #0f172a;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 40px;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  background: var(--card-bg);
  padding: 25px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  text-align: center;
}

.card-icon {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.banner-highlight {
  margin-top: 40px;
  background: #eff6ff;
  border-left: 5px solid var(--primary-color);
  padding: 20px;
  border-radius: var(--radius);
  display: flex;
  gap: 20px;
  align-items: center;
}

.banner-icon {
  font-size: 2rem;
  color: var(--primary-color);
}

/* Atores */
.actors-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
  margin-bottom: 40px;
}

.actor-card {
  background: var(--card-bg);
  padding: 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.actor-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 10px;
}

.actor-icon {
  font-size: 1.5rem;
  color: var(--primary-color);
}

/* Diagrama de Fluxo Geral */
.flow-diagram {
  background: var(--card-bg);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}

.flow-steps {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 15px;
  margin-top: 20px;
}

.step {
  background: var(--bg-alt);
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge-step {
  background: #fef3c7;
  color: #d97706;
}

/* Abas UC */
.tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 30px;
}

.tab-btn {
  padding: 12px 24px;
  background: var(--bg-alt);
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.tab-btn.active, .tab-btn:hover {
  background: var(--primary-color);
  color: #fff;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.uc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  background: var(--card-bg);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

@media (max-width: 768px) {
  .uc-grid { grid-template-columns: 1fr; }
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.tag {
  background: var(--bg-alt);
  padding: 5px 12px;
  border-radius: 15px;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Timeline */
.timeline {
  padding-left: 20px;
  margin: 15px 0;
}

.timeline li {
  margin-bottom: 10px;
}

/* Accordion */
.accordion-header {
  width: 100%;
  text-align: left;
  padding: 12px;
  background: var(--bg-alt);
  border: none;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
}

.accordion-body {
  display: none;
  padding: 15px;
  border: 1px solid var(--border-color);
  border-radius: 0 0 6px 6px;
}

/* Status Badges */
.status {
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.8rem;
}
.status.aguardando { background: #fef3c7; color: #b45309; }
.status.aprovado { background: #d1fae5; color: #047857; }
.status.reprovado { background: #fee2e2; color: #b91c1c; }
.status.finalizado { background: #e2e8f0; color: #475569; }

/* Status Box */
.status-result-box {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-top: 15px;
}

.res-item {
  display: flex;
  gap: 12px;
  padding: 10px;
  border-radius: 8px;
}

.res-item.ok { background: #ecfdf5; color: #065f46; }
.res-item.error { background: #fef2f2; color: #991b1b; }

/* Diagrama de Estados */
.state-diagram-container {
  background: var(--card-bg);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  margin-bottom: 40px;
}

.state-node {
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 700;
  border: 2px solid var(--border-color);
  background: #fff;
}

.state-node.warning { border-color: var(--status-waiting); background: #fffbeb; }
.state-node.success { border-color: var(--status-approved); background: #ecfdf5; }
.state-node.danger { border-color: var(--status-rejected); background: #fef2f2; }

.branch-container {
  display: flex;
  gap: 50px;
}

.branch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

/* Tabela */
.table-responsive {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

th, td {
  padding: 15px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  background: #0f172a;
  color: #fff;
}

/* Rodapé */
.footer {
  background: #0f172a;
  color: #fff;
  padding: 40px 0 20px;
  text-align: center;
}

.footer hr {
  margin: 20px 0;
  border: 0;
  border-top: 1px solid #334155;
}

.copyright {
  color: #94a3b8;
  font-size: 0.85rem;
}