:root {
  --bg-dark: #0f1419;
  --bg-card: #1a2332;
  --bg-input: #252f3d;
  --accent: #00d4aa;
  --accent-dim: #00a88a;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --border: #30363d;
  --danger: #f85149;
  --success: #3fb950;
  --warning: #d29922;
}

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

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

/* Login Page */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2332 100%);
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: 1rem;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
}

.login-header h1 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.login-header p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.login-form .form-group {
  margin-bottom: 1.25rem;
}

.login-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.login-form input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
  transition: border-color 0.2s;
}

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

.login-messages .alert {
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-dark);
}

.btn-primary:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
}

.btn-block {
  width: 100%;
  margin-top: 0.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-text {
  color: var(--accent);
}

.user-info {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.btn-logout {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  transition: all 0.2s;
}

.btn-logout:hover {
  color: var(--danger);
  background: rgba(248, 81, 73, 0.1);
}

.main-content {
  margin-left: 0;
  min-height: 100vh;
  padding: 2rem;
  max-width: 100%;
  overflow-x: hidden;
}

.main-content--topbar {
  padding-top: 5rem;
}

/* Top horizontal menu */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 100;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topnav-item {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.topnav-item:hover {
  color: var(--text);
  background: rgba(0, 212, 170, 0.08);
}

.topnav-item.active {
  color: var(--accent);
  background: rgba(0, 212, 170, 0.16);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.card-value {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
}

/* Dashboard layout */
.dashboard-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem;
}

.dashboard-sidebar {
  position: sticky;
  top: 2rem;
  height: fit-content;
}

.dashboard-main {
  min-width: 0;
}

.segmentation-form .form-group {
  margin-bottom: 1rem;
}

.segmentation-form label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.segmentation-form select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
}

.segmentation-form select:focus {
  outline: none;
  border-color: var(--accent);
}

.date-range {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

/* KPI Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.25rem 1rem;
}

.kpi-card .card-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kpi-card .card-value {
  font-size: 1.5rem;
}

.kpi-sparkline {
  margin-top: 0.5rem;
  height: 40px;
}

.kpi-sparkline canvas {
  width: 100%;
  height: 100%;
}

/* Chart container */
.chart-container {
  position: relative;
  height: 400px;
  margin-bottom: 2rem;
}

/* Grafo - ocupa toda a área disponível */
.dashboard-layout--grafo {
  align-items: stretch;
  min-height: calc(100vh - 8rem);
}

.dashboard-main--grafo {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.card--grafo {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  margin-bottom: 0;
}

.grafo-container {
  flex: 1;
  min-height: 400px;
  position: relative;
  width: 100%;
}

.grafo-container #grafo-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
}

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.alert-success { background: rgba(63, 185, 80, 0.15); color: var(--success); }
.alert-error { background: rgba(248, 81, 73, 0.15); color: var(--danger); }
.alert-info { background: rgba(0, 212, 170, 0.15); color: var(--accent); }
.alert-warning { background: rgba(210, 153, 34, 0.15); color: var(--warning); }

/* Page header */
.page-header {
  margin-bottom: 2rem;
}

.page-header h1 {
  font-size: 1.75rem;
  font-weight: 600;
}

.page-header p {
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Upload form */
.upload-card {
  max-width: 500px;
  overflow: hidden;
}

.upload-form .form-group {
  margin-bottom: 1.25rem;
  min-width: 0;
  overflow: hidden;
}

.upload-form .form-help {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
  overflow-wrap: anywhere;
  word-break: break-all;
  overflow: hidden;
}

.upload-input {
  display: block;
  width: 100%;
  padding: 0.5rem 0;
  font-size: 1rem;
  color: var(--text);
}

.csv-format-wrapper {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
  min-width: 0;
  overflow: hidden;
}

.csv-format {
  display: block;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--accent);
  word-break: break-all;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  max-width: 100%;
  overflow: hidden;
}

.card--csv-format .card-title,
.card--csv-format p,
.card--csv-format .csv-format-wrapper {
  max-width: 100%;
  overflow: hidden;
}

.card--csv-format {
  min-width: 0;
  overflow: hidden;
}

.csv-example {
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: pre-wrap;
  word-break: break-all;
  max-width: 100%;
  overflow: hidden;
}

/* Importar cadastros - seções */
.cadastros-upload {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.upload-section {
  max-width: 600px;
}

.upload-section-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.upload-section-help {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.upload-section .form-group {
  margin-bottom: 1rem;
}

.upload-section input[type="file"] {
  padding: 0.5rem 0;
  color: var(--text);
}

.upload-section .csv-example {
  margin-top: 1rem;
}

/* Responsive */
@media (max-width: 900px) {
  .dashboard-layout {
    grid-template-columns: 1fr;
  }
}