/* ==========================================================================
   Galileo Cloud Design System - Core Tokens & Component Styles
   Reference Aesthetic: Modern EdTech Enterprise LMS (Activate Learning / IQWST)
   ========================================================================== */

:root {
  /* Color Palette - Canvas & Surfaces */
  --color-canvas-bg: #F8FAFC;
  --color-surface-white: #FFFFFF;
  --color-surface-card-mint: #F0FAF5;
  --color-border-card-mint: #D1EFE0;
  --color-surface-card-neutral: #FFFFFF;
  --color-border-card-neutral: #E2E8F0;
  
  /* Sidebar (Dark Charcoal/Navy) */
  --color-sidebar-bg: #161922;
  --color-sidebar-item-hover: #1E2330;
  --color-sidebar-item-active: #232838;
  --color-sidebar-text: #94A3B8;
  --color-sidebar-text-active: #FFFFFF;
  --color-sidebar-icon-active: #3B82F6;
  --color-sidebar-border: #232838;
  
  /* Primary Actions & Accents */
  --color-primary: #1E6BFF;
  --color-primary-hover: #1656D6;
  --color-primary-light: #EFF6FF;
  --color-primary-text: #FFFFFF;
  
  /* Semantic Status Tokens */
  --color-status-published-bg: #DCFCE7;
  --color-status-published-text: #166534;
  --color-status-published-border: #BBF7D0;
  
  --color-status-review-bg: #FEF3C7;
  --color-status-review-text: #92400E;
  --color-status-review-border: #FDE68A;
  
  --color-status-draft-bg: #F1F5F9;
  --color-status-draft-text: #475569;
  --color-status-draft-border: #E2E8F0;
  
  /* Typography & Neutrals */
  --color-text-main: #0F172A;
  --color-text-body: #334155;
  --color-text-muted: #64748B;
  --color-text-subtle: #94A3B8;
  --color-border-divider: #E2E8F0;
  --color-border-input: #CBD5E1;
  
  /* Typography Scale */
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-xs: 11px;
  --font-size-sm: 13px;
  --font-size-base: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 22px;
  --font-size-2xl: 28px;
  
  /* Radii */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 14px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-card: 0 1px 3px 0 rgba(15, 23, 42, 0.04), 0 1px 2px -1px rgba(15, 23, 42, 0.03);
  --shadow-dropdown: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

/* Base Reset & Layout */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

.app-container {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

/* ==========================================================================
   1. Left Sidebar Navigation
   ========================================================================== */
.sidebar {
  width: 230px;
  background-color: var(--color-sidebar-bg);
  color: var(--color-sidebar-text);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  border-right: 1px solid var(--color-sidebar-border);
  padding: 18px 12px;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px 24px 10px;
  color: #FFFFFF;
  font-size: var(--font-size-md);
  font-weight: 700;
  letter-spacing: -0.2px;
}

.sidebar-brand-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
}

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

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  color: var(--color-sidebar-text);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all 0.15s ease;
}

.nav-item:hover {
  background-color: var(--color-sidebar-item-hover);
  color: #FFFFFF;
}

.nav-item.active {
  background-color: var(--color-sidebar-item-active);
  color: var(--color-sidebar-text-active);
  font-weight: 600;
}

.nav-item.active .nav-icon {
  color: var(--color-sidebar-icon-active);
}

.nav-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-footer {
  border-top: 1px solid var(--color-sidebar-border);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dev-mode-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 10px;
  font-size: var(--font-size-xs);
  color: var(--color-sidebar-text);
}

.dev-toggle-pill {
  background-color: #232838;
  color: #94A3B8;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.user-profile-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  color: #FFFFFF;
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background-color 0.15s ease;
}

.user-profile-row:hover {
  background-color: var(--color-sidebar-item-hover);
}

/* ==========================================================================
   2. Main Content Canvas & Top Header
   ========================================================================== */
.main-canvas {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  background-color: var(--color-canvas-bg);
}

.top-toolbar {
  background-color: var(--color-surface-white);
  border-bottom: 1px solid var(--color-border-divider);
  padding: 12px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.btn-primary-action {
  background-color: var(--color-primary);
  color: var(--color-primary-text);
  border: none;
  border-radius: var(--radius-md);
  padding: 8px 16px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: background-color 0.15s ease;
  white-space: nowrap;
}

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

.search-container {
  flex-grow: 1;
  max-width: 440px;
  position: relative;
}

.search-input {
  width: 100%;
  border: 1px solid var(--color-border-input);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  font-size: var(--font-size-sm);
  color: var(--color-text-main);
  background-color: #FFFFFF;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(30, 107, 255, 0.15);
}

.search-input::placeholder {
  color: var(--color-text-subtle);
}

.filter-group-radios {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: var(--font-size-sm);
  color: var(--color-text-body);
}

.radio-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
}

.radio-indicator {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1.5px solid var(--color-border-input);
  display: flex;
  align-items: center;
  justify-content: center;
}

.radio-pill.active .radio-indicator {
  border-color: var(--color-primary);
}

.radio-pill.active .radio-indicator::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.filter-dropdown-btn {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border-input);
  border-radius: var(--radius-md);
  padding: 7px 12px;
  font-size: var(--font-size-sm);
  color: var(--color-text-body);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  white-space: nowrap;
}

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

/* ==========================================================================
   3. Content Sections & Headers
   ========================================================================== */
.content-body {
  padding: 24px 28px 48px 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.section-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.section-title {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-text-main);
  white-space: nowrap;
  letter-spacing: -0.2px;
}

.section-count {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-subtle);
}

.section-divider-line {
  flex-grow: 1;
  height: 1px;
  background-color: var(--color-border-divider);
}

/* ==========================================================================
   4. Multi-Station / Investigation Card Component
   ========================================================================== */
.investigation-card {
  background-color: var(--color-surface-card-mint);
  border: 1px solid var(--color-border-card-mint);
  border-radius: var(--radius-xl);
  padding: 20px 24px;
  display: flex;
  gap: 32px;
  box-shadow: var(--shadow-card);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.investigation-card:hover {
  box-shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.06);
}

/* Left Sub-Column (Unit info & actions) */
.card-left-col {
  width: 320px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.unit-chip {
  display: inline-block;
  align-self: flex-start;
  background-color: #E2E8F0;
  color: #475569;
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.2px;
}

.card-title {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-text-main);
  line-height: 1.35;
}

.status-dropdown-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  background-color: var(--color-status-published-bg);
  color: var(--color-status-published-text);
  border: 1px solid var(--color-status-published-border);
  border-radius: var(--radius-full);
  padding: 3px 10px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  cursor: pointer;
}

.card-actions-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
}

.btn-outline-neutral {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border-input);
  border-radius: var(--radius-md);
  padding: 6px 14px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-body);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-outline-neutral:hover {
  background-color: #F8FAFC;
  border-color: #94A3B8;
}

.btn-outline-primary {
  background-color: #FFFFFF;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 6px 16px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  transition: all 0.15s ease;
}

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

.btn-icon-more {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border-input);
  border-radius: var(--radius-md);
  padding: 6px 10px;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  cursor: pointer;
}

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

/* Right Sub-Column (Station list) */
.card-right-col {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-left: 1px solid rgba(195, 236, 213, 0.6);
  padding-left: 28px;
}

.station-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.station-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 4px 0;
}

.station-name-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.station-number {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 600;
  width: 14px;
}

.station-name {
  color: var(--color-text-main);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.badge-published {
  background-color: var(--color-status-published-bg);
  color: var(--color-status-published-text);
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.card-meta-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  align-self: flex-end;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.card-meta-author {
  font-weight: 600;
  color: var(--color-text-body);
}

.card-meta-date {
  color: var(--color-text-subtle);
}