/* InLeads IT CRM — Design System (Red & Light) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  
  /* Color System */
  --primary: #dc2626;
  --primary-hover: #b91c1c;
  --primary-light: #fef2f2;
  --primary-border: #fca5a5;
  
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-sidebar: #0f172a;
  --bg-sidebar-hover: #1e293b;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;
  
  --border: #e2e8f0;
  --border-focus: #dc2626;
  
  --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);
  
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

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

/* App Layout */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  color: var(--text-white);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 50;
  transition: var(--transition);
}

.sidebar-header {
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-badge {
  background: var(--primary);
  color: white;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  box-shadow: 0 2px 8px rgba(220, 38, 38, 0.4);
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: white;
  letter-spacing: -0.02em;
}

.brand-title span {
  color: var(--primary);
}

.sidebar-nav {
  padding: 1rem 0.75rem;
  flex: 1;
  overflow-y: auto;
}

.nav-section-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-light);
  padding: 0.75rem 0.75rem 0.35rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.75rem;
  color: #cbd5e1;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: var(--transition);
  margin-bottom: 2px;
}

.nav-link:hover {
  background: var(--bg-sidebar-hover);
  color: white;
}

.nav-link.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
}

.nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.nav-badge {
  margin-left: auto;
  background: rgba(220, 38, 38, 0.2);
  color: #fca5a5;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 9999px;
  font-weight: 600;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
}

.user-info {
  flex: 1;
  overflow: hidden;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: white;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.user-role {
  font-size: 0.75rem;
  color: var(--text-light);
  text-transform: capitalize;
}

/* Main Content Wrapper */
.main-wrapper {
  margin-left: 260px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  height: 64px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 40;
}

.topbar-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

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

.content-area {
  padding: 2rem;
  flex: 1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--primary);
  color: white;
  box-shadow: 0 2px 4px rgba(220, 38, 38, 0.2);
}

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

.btn-secondary {
  background-color: white;
  border-color: var(--border);
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: var(--bg-main);
  border-color: #cbd5e1;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.8rem;
}

/* Cards & Widgets */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
}

/* KPI Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.kpi-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-sm);

}

.kpi-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.kpi-data {
  display: flex;
  flex-direction: column;
}

.kpi-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.kpi-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Alert Boxes */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.alert-error {
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.alert-success {
  background-color: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}

/* Auth Container (Light Design) */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #f8fafc;
  background-image: radial-gradient(#e2e8f0 1px, transparent 1px);
  background-size: 24px 24px;
  padding: 1.5rem;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
}

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

.auth-logo {
  width: 52px;
  height: 52px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 1rem;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.4);
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
}

.auth-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

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

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.375rem;
}

.form-input {
  width: 100%;
  padding: 0.65rem 0.875rem;
  font-size: 0.9rem;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}