/* ==============================================
   SafetyDocs Assessment App - Professional Styling
   ============================================== */

/* ============== CSS Variables ============== */
:root {
  /* Brand Colors */
  --primary: #F7941D;
  --secondary: #1B2A4A;
  --accent: #2C5282;
  --success: #38A169;
  --warning: #D69E2E;
  --danger: #E53E3E;

  /* Neutrals */
  --bg-light: #F7FAFC;
  --bg-card: #FFFFFF;
  --text-primary: #2D3748;
  --text-secondary: #718096;
  --border: #E2E8F0;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Shadow */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --transition: all 0.2s ease;
  --transition-slow: all 0.3s ease;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-light);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============== Typography ============== */
h1 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
}

/* ============== Screen Containers ============== */
.screen {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.screen.active {
  opacity: 1;
  visibility: visible;
}

/* ============== LOGIN SCREEN ============== */
#loginScreen {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
  min-height: 100vh;
  padding: var(--spacing-md);
}

.login-container {
  width: 100%;
  max-width: 420px;
}

.login-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-lg);
}

.login-logo {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.login-logo img {
  height: 48px;
  margin-bottom: var(--spacing-md);
}

.login-logo h1 {
  font-size: 28px;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.login-logo p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 0;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-group label {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 14px;
}

.form-group input {
  padding: var(--spacing-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(247, 148, 29, 0.1);
}

.login-button {
  background: var(--primary);
  color: white;
  border: none;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  margin-top: var(--spacing-md);
}

.login-button:hover {
  background: #E5840D;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.login-button:active {
  transform: translateY(0);
}

.login-toggle {
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: var(--spacing-md);
}

.login-toggle button {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-weight: 600;
  padding: 0;
  transition: var(--transition);
}

.login-toggle button:hover {
  text-decoration: underline;
}

/* ============== DASHBOARD SCREEN ============== */
#dashboardScreen {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-light);
}

.navbar {
  background: var(--secondary);
  color: white;
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.navbar-brand img {
  height: 32px;
}

.navbar-actions {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 13px;
}

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

.dashboard-content {
  flex: 1;
  padding: var(--spacing-2xl);
  overflow-y: auto;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-2xl);
}

.dashboard-header h1 {
  margin-bottom: 0;
}

.btn-new-assessment {
  background: var(--primary);
  color: white;
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.btn-new-assessment:hover {
  background: #E5840D;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.assessments-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.assessment-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid var(--border);
}

.assessment-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--primary);
}

.assessment-card-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: var(--spacing-md);
}

.assessment-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.status-badge {
  padding: 4px 12px;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.status-badge.draft {
  background: #FEF3C7;
  color: #92400E;
}

.status-badge.complete {
  background: #D1FAE5;
  color: #065F46;
}

.status-badge.in-progress {
  background: #DBEAFE;
  color: #0C2340;
}

.assessment-card-meta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.assessment-card-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.btn-card {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
}

.btn-card:hover {
  background: var(--bg-light);
  border-color: var(--primary);
}

.btn-card.primary {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.btn-card.primary:hover {
  background: #E5840D;
}

/* ============== ASSESSMENT SCREEN ============== */
#assessmentScreen {
  display: flex;
  height: 100%;
  background: var(--bg-light);
}

.assessment-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.assessment-header h2 {
  margin-bottom: 0;
  font-size: 18px;
  flex: 1;
}

.progress-bar {
  width: 300px;
  height: 6px;
  background: var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--primary);
  width: 0%;
  transition: width 0.3s ease;
}

.assessment-wrapper {
  display: flex;
  margin-top: 60px;
  height: calc(100% - 60px);
}

.assessment-sidebar {
  width: 250px;
  background: var(--secondary);
  color: white;
  padding: var(--spacing-lg) 0;
  overflow-y: auto;
  flex-shrink: 0;
}

.sidebar-section {
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  transition: var(--transition);
  border-left: 3px solid transparent;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.sidebar-section:hover {
  background: rgba(255, 255, 255, 0.05);
}

.sidebar-section.active {
  background: rgba(247, 148, 29, 0.15);
  border-left-color: var(--primary);
}

.sidebar-section-title {
  font-size: 14px;
  font-weight: 500;
  flex: 1;
}

.sidebar-section-check {
  color: var(--success);
  font-weight: bold;
  font-size: 18px;
}

.assessment-main {
  flex: 1;
  padding: var(--spacing-2xl);
  overflow-y: auto;
}

.question-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.question-header {
  display: flex;
  align-items: start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.question-number {
  background: var(--primary);
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
  font-size: 13px;
}

.question-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.required-indicator {
  color: var(--danger);
  margin-left: 4px;
}

.help-text {
  font-size: 12px;
  color: var(--text-secondary);
  font-style: italic;
  margin-top: var(--spacing-xs);
}

.question-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* Radio Button Styling */
.radio-option,
.checkbox-option {
  display: flex;
  align-items: center;
  padding: var(--spacing-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-light);
}

.radio-option:hover,
.checkbox-option:hover {
  border-color: var(--primary);
  background: #FEFBF5;
}

.radio-option.selected,
.checkbox-option.selected {
  border-color: var(--primary);
  background: rgba(247, 148, 29, 0.05);
  box-shadow: inset 0 0 0 1px var(--primary);
}

.radio-input,
.checkbox-input {
  margin-right: var(--spacing-md);
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary);
}

.option-label {
  flex: 1;
  cursor: pointer;
  user-select: none;
  font-weight: 500;
}

/* Text, Date, Number Inputs */
.text-input,
.date-input,
.number-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 14px;
  transition: var(--transition);
}

.text-input:focus,
.date-input:focus,
.number-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(247, 148, 29, 0.1);
}

/* Textarea */
textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 14px;
  min-height: 100px;
  resize: vertical;
  transition: var(--transition);
}

textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(247, 148, 29, 0.1);
}

.assessment-actions {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border);
  margin-top: var(--spacing-2xl);
}

.btn-nav {
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  min-width: 100px;
}

.btn-nav:hover:not(:disabled) {
  border-color: var(--primary);
  background: var(--bg-light);
}

.btn-nav:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-save {
  background: var(--success);
  color: white;
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.btn-save:hover {
  background: #2F8659;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-back {
  position: fixed;
  top: var(--spacing-lg);
  left: var(--spacing-lg);
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  z-index: 101;
}

.btn-back:hover {
  background: var(--bg-light);
  border-color: var(--primary);
}

/* ============== REPORT PREVIEW ============== */
.report-container {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.report-section {
  margin-bottom: var(--spacing-2xl);
}

.report-section h3 {
  color: var(--secondary);
  border-bottom: 2px solid var(--primary);
  padding-bottom: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.chart-container {
  width: 100%;
  height: 300px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  border: 1px dashed var(--border);
}

.report-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-lg);
  font-size: 13px;
}

.report-table th {
  background: var(--secondary);
  color: white;
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
}

.report-table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border);
}

.report-table tbody tr:nth-child(even) {
  background: var(--bg-light);
}

.report-table tbody tr:hover {
  background: #F3F7FF;
}

.score-badge {
  padding: 6px 12px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 12px;
  display: inline-block;
  text-align: center;
  min-width: 60px;
}

.score-badge.very-low {
  background: #D1FAE5;
  color: #065F46;
}

.score-badge.low {
  background: #DBEAFE;
  color: #0C2340;
}

.score-badge.moderate {
  background: #FEF3C7;
  color: #92400E;
}

.score-badge.high {
  background: #FED7AA;
  color: #92400E;
}

.score-badge.very-high {
  background: #FECACA;
  color: #7F1D1D;
}

/* ============== LOADING SPINNER ============== */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  gap: var(--spacing-md);
  color: var(--text-secondary);
}

/* ============== TOAST NOTIFICATIONS ============== */
.toast {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-weight: 500;
  z-index: 1000;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.success {
  background: var(--success);
  color: white;
}

.toast.error {
  background: var(--danger);
  color: white;
}

.toast.warning {
  background: var(--warning);
  color: white;
}

.toast.info {
  background: var(--accent);
  color: white;
}

/* ============== RESPONSIVE DESIGN ============== */
@media (max-width: 768px) {
  .assessments-container {
    grid-template-columns: 1fr;
  }

  .assessment-wrapper {
    flex-direction: column;
  }

  .assessment-sidebar {
    width: 100%;
    max-height: 200px;
    overflow-x: auto;
    display: flex;
    flex-direction: row;
    padding: 0;
    border-bottom: 1px solid var(--border);
  }

  .sidebar-section {
    padding: var(--spacing-md);
    white-space: nowrap;
    border-left: none;
    border-bottom: 3px solid transparent;
    flex: 0 0 auto;
  }

  .sidebar-section.active {
    border-left: none;
    border-bottom-color: var(--primary);
    background: rgba(247, 148, 29, 0.1);
  }

  .assessment-main {
    padding: var(--spacing-lg);
  }

  .dashboard-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }

  .btn-new-assessment {
    width: 100%;
    justify-content: center;
  }

  .navbar {
    flex-direction: column;
    gap: var(--spacing-md);
    justify-content: flex-start;
  }

  .navbar-actions {
    width: 100%;
    justify-content: space-between;
  }

  .assessment-actions {
    flex-direction: column;
  }

  .btn-nav {
    width: 100%;
  }

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 13px;
  }

  .login-card {
    padding: var(--spacing-lg);
  }

  .dashboard-content {
    padding: var(--spacing-lg);
  }

  .assessment-main {
    padding: var(--spacing-md);
  }

  .question-card {
    padding: var(--spacing-md);
  }

  .navbar-brand {
    font-size: 16px;
  }

  h1 {
    font-size: 20px;
  }

  h2 {
    font-size: 18px;
  }

  h3 {
    font-size: 16px;
  }

  .toast {
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    left: var(--spacing-md);
  }
}

/* ============== PRINT STYLES ============== */
@media print {
  body {
    background: white;
  }

  .navbar,
  .assessment-sidebar,
  .assessment-header,
  .assessment-actions,
  .btn-back {
    display: none;
  }

  .report-container {
    box-shadow: none;
    page-break-inside: avoid;
  }

  .report-table {
    page-break-inside: avoid;
  }

  .report-section {
    page-break-inside: avoid;
  }
}

/* ============== UTILITY CLASSES ============== */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden;
}

.opacity-50 {
  opacity: 0.5;
}

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}