:root {
  --color-navy: #0F172A;
  --color-navy-light: #1E293B;
  --color-primary: #0284C7;
  --color-primary-hover: #0369A1;
  --color-primary-light: #E0F2FE;
  --color-bg: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-border: #E2E8F0;
  --color-text: #0F172A;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;
  --color-success: #059669;
  --color-success-bg: #ECFDF5;
  --color-warning: #D97706;
  --color-warning-bg: #FFFBEB;
  --color-error: #DC2626;
  --color-error-bg: #FEF2F2;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-pill: 9999px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--color-navy);
  color: #F8FAFC;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  padding: 24px 16px;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-navy-light);
  margin-bottom: 24px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #0284C7, #38BDF8);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #FFFFFF;
}

.brand-title {
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.brand-subtitle {
  font-size: 11px;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.nav-section-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  padding: 12px 12px 6px;
  margin-top: 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: #CBD5E1;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s ease;
}

.nav-link:hover {
  background-color: var(--color-navy-light);
  color: #FFFFFF;
}

.nav-link.active {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.nav-badge {
  margin-left: auto;
  font-size: 11px;
  background: var(--color-navy-light);
  color: #FFFFFF;
  padding: 2px 7px;
  border-radius: var(--radius-pill);
}

.sidebar-footer {
  padding-top: 16px;
  border-top: 1px solid var(--color-navy-light);
  font-size: 12px;
  color: var(--color-text-light);
}

/* App Main Content */
.main-layout {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow-y: auto;
}

.topbar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 20;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.org-badge {
  background: #F1F5F9;
  border: 1px solid var(--color-border);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-navy);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.role-switcher {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  background: #F8FAFC;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.role-select {
  border: none;
  background: transparent;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 13px;
  outline: none;
  cursor: pointer;
}

.content-container {
  padding: 32px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

/* Page Headers */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.page-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.02em;
}

.page-subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Cards & Grid */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.kpi-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kpi-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-navy);
  margin-top: 8px;
  letter-spacing: -0.03em;
}

.kpi-meta {
  font-size: 12px;
  color: var(--color-success);
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Standard Box */
.card-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
  overflow: hidden;
}

.card-box-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-box-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-navy);
}

.card-box-body {
  padding: 20px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

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

.btn-secondary {
  background-color: #FFFFFF;
  border-color: var(--color-border);
  color: var(--color-navy);
}

.btn-secondary:hover {
  background-color: #F8FAFC;
}

.btn-success {
  background-color: var(--color-success);
  color: #FFFFFF;
}

.btn-danger {
  background-color: var(--color-error);
  color: #FFFFFF;
}

.btn-sm {
  font-size: 12px;
  padding: 4px 10px;
}

/* Stepper */
.stepper-nav {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  background: #F8FAFC;
}

.step-item {
  flex: 1;
  padding: 14px 16px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.step-item.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  background: var(--color-surface);
}

/* Kanban */
.kanban-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.kanban-col {
  background: #F1F5F9;
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.kanban-col-header {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-navy);
  display: flex;
  justify-content: space-between;
}

.candidate-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.candidate-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.fit-badge {
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  display: inline-block;
}

.fit-high {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid #A7F3D0;
}

.fit-med {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid #FDE68A;
}

.fit-low {
  background: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid #FECACA;
}

/* Chat & Messages */
.chat-window {
  display: flex;
  flex-direction: column;
  height: 420px;
  background: #F8FAFC;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.chat-history {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-bubble {
  max-width: 80%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  line-height: 1.5;
}

.chat-bubble-ai {
  align-self: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-navy);
}

.chat-bubble-user {
  align-self: flex-end;
  background: var(--color-primary);
  color: #FFFFFF;
}

.chat-footer {
  padding: 12px 16px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: 8px;
}

.chat-input {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  outline: none;
}

.chat-input:focus {
  border-color: var(--color-primary);
}

/* Callouts & Alerts */
.callout {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
  border-left: 4px solid;
}

.callout-info {
  background: #F0F9FF;
  border-color: var(--color-primary);
  color: #0369A1;
}

.callout-warning {
  background: var(--color-warning-bg);
  border-color: var(--color-warning);
  color: #92400E;
}

.callout-success {
  background: var(--color-success-bg);
  border-color: var(--color-success);
  color: #065F46;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  backdrop-filter: blur(2px);
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 680px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body {
  padding: 24px;
}