/* Global Styles and Layout */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary-color: #64748b;
  --success-color: #059669;
  --warning-color: #d97706;
  --error-color: #dc2626;
  --background-color: #f8fafc;
  --surface-color: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-color);
}

/* Screen Management */
.screen {
  display: none;
}

.screen.active {
  display: block;
}

/* Login Screen */
#login-screen {
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-dark)
  );
  padding: 1rem;
  position: relative;
}

#login-screen.active {
  display: flex;
}

/* Password Reset Screen - same styling as login screen */
#password-reset-screen {
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--primary-dark)
  );
  padding: 1rem;
  position: relative;
}

#password-reset-screen.active {
  display: flex;
}

#login-screen::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  pointer-events: none;
}

#password-reset-screen::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  pointer-events: none;
}

.login-container {
  background: var(--surface-color);
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  width: 100%;
  max-width: 420px;
  animation: fadeInUp 0.6s ease-out;
  position: relative;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.login-header h1 {
  color: var(--text-primary);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0;
}

.login-form {
  margin-bottom: 1.5rem;
}

.form-input {
  transition: all 0.3s ease;
  position: relative;
}

.form-input:focus {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
  border-color: var(--primary-color);
}

.form-input:hover:not(:focus) {
  border-color: rgba(37, 99, 235, 0.3);
}

.form-input.error {
  border-color: var(--error-color);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
  animation: shake 0.4s ease-in-out;
}

.form-input.success {
  border-color: var(--success-color);
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}

.field-error {
  color: var(--error-color);
  font-size: 0.85rem;
  margin-top: 0.25rem;
  min-height: 1.2rem;
  display: block;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
}

.field-error.show {
  opacity: 1;
  transform: translateY(0);
}

.field-error:not(:empty) {
  opacity: 1;
  transform: translateY(0);
}

.form-actions {
  margin-top: 1.5rem;
}

.login-btn {
  width: 100%;
  position: relative;
  font-weight: 600;
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
  transition: all 0.3s ease;
  border-radius: 8px;
  overflow: hidden;
}

.login-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s ease;
}

.login-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.login-btn:hover:not(:disabled)::before {
  left: 100%;
}

.login-btn:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.login-btn:disabled {
  background: var(--secondary-color);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  opacity: 0.7;
}

.btn-spinner {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: none;
}

.spinner-small {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.global-error {
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: 8px;
  padding: 0.75rem;
  margin-top: 1rem;
  text-align: center;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  max-height: 0;
  overflow: hidden;
}

.global-error.show {
  opacity: 1;
  transform: translateY(0);
  max-height: 100px;
}

.global-error:not(:empty) {
  opacity: 1;
  transform: translateY(0);
  max-height: 100px;
}

.login-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

.demo-credentials {
  background: rgba(37, 99, 235, 0.05);
  border: 1px solid rgba(37, 99, 235, 0.1);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
}

.demo-credentials h4 {
  color: var(--primary-color);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.demo-credentials p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin: 0.25rem 0;
}

.form-links {
  margin-top: 1rem;
}

.forgot-password-link {
  color: var(--primary-color);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.2s;
}

.forgot-password-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.success-message {
  background: rgba(5, 150, 105, 0.1);
  border: 1px solid rgba(5, 150, 105, 0.2);
  border-radius: 8px;
  padding: 0.75rem;
  margin-top: 1rem;
  text-align: center;
  color: var(--success-color);
}

.demo-credentials strong {
  color: var(--text-primary);
}

/* Main Application Layout */
#main-app {
  min-height: 100vh;
  grid-template-rows: auto 1fr;
}

#main-app.active {
  display: grid;
}

/* Navigation */
.main-navigation {
  background: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  padding: 0 1rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
  box-shadow: var(--shadow);
}

.nav-brand h2 {
  color: var(--primary-color);
  font-weight: 600;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.5rem;
}

.nav-link {
  display: block;
  padding: 0.75rem 1rem;
  text-decoration: none;
  color: var(--text-secondary);
  border-radius: 6px;
  transition: all 0.2s;
}

.nav-link:hover,
.nav-link.active {
  background-color: var(--primary-color);
  color: white;
}

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

#current-user {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

.user-profile-link {
  padding: 0.5rem 1rem;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  transition: background-color 0.3s;
}

.user-profile-link:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

/* Main Content */
.main-content {
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* Form Styles */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Button Styles */
button {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

button:hover {
  background: var(--primary-dark);
}

button:disabled {
  background: var(--secondary-color);
  cursor: not-allowed;
}

button.secondary {
  background: var(--secondary-color);
}

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

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

button.error {
  background: var(--error-color);
}

/* Error Messages */
.error-message {
  color: var(--error-color);
  font-size: 0.9rem;
  margin-top: 0.5rem;
  display: none;
}

.error-message.show {
  display: block;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.loading-overlay.show {
  display: flex;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Password Toggle */
.password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  font-size: 16px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  z-index: 1;
  border-radius: 4px;
}

.password-toggle:hover {
  color: var(--primary-color);
  background: rgba(37, 99, 235, 0.1);
}

.password-toggle:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.form-group:has(.password-toggle) input {
  padding-right: 45px;
}

/* Fallback for browsers that don't support :has() */
.form-group.has-toggle input {
  padding-right: 45px;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus management */
.form-input:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

button:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* High contrast mode support - using CSS custom properties for better compatibility */
.high-contrast {
  --border-width: 2px;
}

.high-contrast .login-container {
  border: var(--border-width, 1px) solid var(--text-primary);
}

.high-contrast .form-input {
  border-width: var(--border-width, 1px);
}

.high-contrast .login-btn {
  border: var(--border-width, 1px) solid var(--primary-color);
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .login-container {
    animation: none;
  }
}

/* Role-based visibility */
.admin-only {
  display: none;
}

body.admin .admin-only {
  display: block;
}

body.admin .nav-menu .admin-only {
  display: list-item;
}

/* Responsive Framework */

/* Breakpoint Variables */
:root {
  --breakpoint-xs: 320px;
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-xxl: 1400px;
}

/* Container System */
.container {
  width: 100%;
  max-width: var(--breakpoint-xl);
  margin: 0 auto;
  padding: 0 1rem;
}

.container-fluid {
  width: 100%;
  padding: 0 1rem;
}

/* Grid System */
.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -0.5rem;
}

.col {
  flex: 1;
  padding: 0 0.5rem;
}

.col-auto {
  flex: 0 0 auto;
  width: auto;
}

/* Column sizes for different breakpoints */
.col-1 {
  flex: 0 0 8.333333%;
  max-width: 8.333333%;
}
.col-2 {
  flex: 0 0 16.666667%;
  max-width: 16.666667%;
}
.col-3 {
  flex: 0 0 25%;
  max-width: 25%;
}
.col-4 {
  flex: 0 0 33.333333%;
  max-width: 33.333333%;
}
.col-5 {
  flex: 0 0 41.666667%;
  max-width: 41.666667%;
}
.col-6 {
  flex: 0 0 50%;
  max-width: 50%;
}
.col-7 {
  flex: 0 0 58.333333%;
  max-width: 58.333333%;
}
.col-8 {
  flex: 0 0 66.666667%;
  max-width: 66.666667%;
}
.col-9 {
  flex: 0 0 75%;
  max-width: 75%;
}
.col-10 {
  flex: 0 0 83.333333%;
  max-width: 83.333333%;
}
.col-11 {
  flex: 0 0 91.666667%;
  max-width: 91.666667%;
}
.col-12 {
  flex: 0 0 100%;
  max-width: 100%;
}

/* Responsive Utilities */
.d-none {
  display: none !important;
}
.d-block {
  display: block !important;
}
.d-flex {
  display: flex !important;
}
.d-grid {
  display: grid !important;
}

.text-left {
  text-align: left !important;
}
.text-center {
  text-align: center !important;
}
.text-right {
  text-align: right !important;
}

.justify-content-start {
  justify-content: flex-start !important;
}
.justify-content-center {
  justify-content: center !important;
}
.justify-content-end {
  justify-content: flex-end !important;
}
.justify-content-between {
  justify-content: space-between !important;
}

.align-items-start {
  align-items: flex-start !important;
}
.align-items-center {
  align-items: center !important;
}
.align-items-end {
  align-items: flex-end !important;
}

/* Spacing Utilities */
.m-0 {
  margin: 0 !important;
}
.m-1 {
  margin: 0.25rem !important;
}
.m-2 {
  margin: 0.5rem !important;
}
.m-3 {
  margin: 1rem !important;
}
.m-4 {
  margin: 1.5rem !important;
}
.m-5 {
  margin: 3rem !important;
}

.p-0 {
  padding: 0 !important;
}
.p-1 {
  padding: 0.25rem !important;
}
.p-2 {
  padding: 0.5rem !important;
}
.p-3 {
  padding: 1rem !important;
}
.p-4 {
  padding: 1.5rem !important;
}
.p-5 {
  padding: 3rem !important;
}

/* Margin/Padding directional utilities */
.mt-0 {
  margin-top: 0 !important;
}
.mt-1 {
  margin-top: 0.25rem !important;
}
.mt-2 {
  margin-top: 0.5rem !important;
}
.mt-3 {
  margin-top: 1rem !important;
}
.mt-4 {
  margin-top: 1.5rem !important;
}
.mt-5 {
  margin-top: 3rem !important;
}

.mb-0 {
  margin-bottom: 0 !important;
}
.mb-1 {
  margin-bottom: 0.25rem !important;
}
.mb-2 {
  margin-bottom: 0.5rem !important;
}
.mb-3 {
  margin-bottom: 1rem !important;
}
.mb-4 {
  margin-bottom: 1.5rem !important;
}
.mb-5 {
  margin-bottom: 3rem !important;
}

.ml-0 {
  margin-left: 0 !important;
}
.ml-1 {
  margin-left: 0.25rem !important;
}
.ml-2 {
  margin-left: 0.5rem !important;
}
.ml-3 {
  margin-left: 1rem !important;
}
.ml-auto {
  margin-left: auto !important;
}

.mr-0 {
  margin-right: 0 !important;
}
.mr-1 {
  margin-right: 0.25rem !important;
}
.mr-2 {
  margin-right: 0.5rem !important;
}
.mr-3 {
  margin-right: 1rem !important;
}
.mr-auto {
  margin-right: auto !important;
}

.pt-0 {
  padding-top: 0 !important;
}
.pt-1 {
  padding-top: 0.25rem !important;
}
.pt-2 {
  padding-top: 0.5rem !important;
}
.pt-3 {
  padding-top: 1rem !important;
}
.pt-4 {
  padding-top: 1.5rem !important;
}
.pt-5 {
  padding-top: 3rem !important;
}

.pb-0 {
  padding-bottom: 0 !important;
}
.pb-1 {
  padding-bottom: 0.25rem !important;
}
.pb-2 {
  padding-bottom: 0.5rem !important;
}
.pb-3 {
  padding-bottom: 1rem !important;
}
.pb-4 {
  padding-bottom: 1.5rem !important;
}
.pb-5 {
  padding-bottom: 3rem !important;
}

.pl-0 {
  padding-left: 0 !important;
}
.pl-1 {
  padding-left: 0.25rem !important;
}
.pl-2 {
  padding-left: 0.5rem !important;
}
.pl-3 {
  padding-left: 1rem !important;
}
.pl-4 {
  padding-left: 1.5rem !important;
}
.pl-5 {
  padding-left: 3rem !important;
}

.pr-0 {
  padding-right: 0 !important;
}
.pr-1 {
  padding-right: 0.25rem !important;
}
.pr-2 {
  padding-right: 0.5rem !important;
}
.pr-3 {
  padding-right: 1rem !important;
}
.pr-4 {
  padding-right: 1.5rem !important;
}
.pr-5 {
  padding-right: 3rem !important;
}

/* Typography Responsive */
.h1,
.h2,
.h3,
.h4,
.h5,
.h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.h1 {
  font-size: 2.5rem;
}
.h2 {
  font-size: 2rem;
}
.h3 {
  font-size: 1.75rem;
}
.h4 {
  font-size: 1.5rem;
}
.h5 {
  font-size: 1.25rem;
}
.h6 {
  font-size: 1rem;
}

.lead {
  font-size: 1.25rem;
  font-weight: 300;
  line-height: 1.6;
}

.text-muted {
  color: var(--text-secondary) !important;
}

.text-primary {
  color: var(--primary-color) !important;
}

.text-success {
  color: var(--success-color) !important;
}

.text-warning {
  color: var(--warning-color) !important;
}

.text-error {
  color: var(--error-color) !important;
}

/* Responsive Breakpoints */

/* Extra Small devices (portrait phones, less than 576px) */
@media (max-width: 575.98px) {
  .container {
    padding: 0 0.75rem;
  }

  .h1 {
    font-size: 2rem;
  }
  .h2 {
    font-size: 1.75rem;
  }
  .h3 {
    font-size: 1.5rem;
  }
  .h4 {
    font-size: 1.25rem;
  }
  .h5 {
    font-size: 1.1rem;
  }

  .d-xs-none {
    display: none !important;
  }
  .d-xs-block {
    display: block !important;
  }
  .d-xs-flex {
    display: flex !important;
  }

  .text-xs-center {
    text-align: center !important;
  }
  .text-xs-left {
    text-align: left !important;
  }
  .text-xs-right {
    text-align: right !important;
  }

  .col-xs-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
  .col-xs-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-xs-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-xs-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
}

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }

  .d-sm-none {
    display: none !important;
  }
  .d-sm-block {
    display: block !important;
  }
  .d-sm-flex {
    display: flex !important;
  }

  .text-sm-center {
    text-align: center !important;
  }
  .text-sm-left {
    text-align: left !important;
  }
  .text-sm-right {
    text-align: right !important;
  }

  .col-sm-1 {
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-sm-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-sm-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-sm-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-sm-5 {
    flex: 0 0 41.666667%;
    max-width: 41.666667%;
  }
  .col-sm-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-sm-7 {
    flex: 0 0 58.333333%;
    max-width: 58.333333%;
  }
  .col-sm-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
  }
  .col-sm-9 {
    flex: 0 0 75%;
    max-width: 75%;
  }
  .col-sm-10 {
    flex: 0 0 83.333333%;
    max-width: 83.333333%;
  }
  .col-sm-11 {
    flex: 0 0 91.666667%;
    max-width: 91.666667%;
  }
  .col-sm-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }

  .d-md-none {
    display: none !important;
  }
  .d-md-block {
    display: block !important;
  }
  .d-md-flex {
    display: flex !important;
  }

  .text-md-center {
    text-align: center !important;
  }
  .text-md-left {
    text-align: left !important;
  }
  .text-md-right {
    text-align: right !important;
  }

  .col-md-1 {
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-md-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-md-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-md-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-md-5 {
    flex: 0 0 41.666667%;
    max-width: 41.666667%;
  }
  .col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-md-7 {
    flex: 0 0 58.333333%;
    max-width: 58.333333%;
  }
  .col-md-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
  }
  .col-md-9 {
    flex: 0 0 75%;
    max-width: 75%;
  }
  .col-md-10 {
    flex: 0 0 83.333333%;
    max-width: 83.333333%;
  }
  .col-md-11 {
    flex: 0 0 91.666667%;
    max-width: 91.666667%;
  }
  .col-md-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }

  .d-lg-none {
    display: none !important;
  }
  .d-lg-block {
    display: block !important;
  }
  .d-lg-flex {
    display: flex !important;
  }

  .text-lg-center {
    text-align: center !important;
  }
  .text-lg-left {
    text-align: left !important;
  }
  .text-lg-right {
    text-align: right !important;
  }

  .col-lg-1 {
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-lg-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-lg-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-lg-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-lg-5 {
    flex: 0 0 41.666667%;
    max-width: 41.666667%;
  }
  .col-lg-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-lg-7 {
    flex: 0 0 58.333333%;
    max-width: 58.333333%;
  }
  .col-lg-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
  }
  .col-lg-9 {
    flex: 0 0 75%;
    max-width: 75%;
  }
  .col-lg-10 {
    flex: 0 0 83.333333%;
    max-width: 83.333333%;
  }
  .col-lg-11 {
    flex: 0 0 91.666667%;
    max-width: 91.666667%;
  }
  .col-lg-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }

  .d-xl-none {
    display: none !important;
  }
  .d-xl-block {
    display: block !important;
  }
  .d-xl-flex {
    display: flex !important;
  }

  .text-xl-center {
    text-align: center !important;
  }
  .text-xl-left {
    text-align: left !important;
  }
  .text-xl-right {
    text-align: right !important;
  }

  .col-xl-1 {
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-xl-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-xl-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-xl-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-xl-5 {
    flex: 0 0 41.666667%;
    max-width: 41.666667%;
  }
  .col-xl-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-xl-7 {
    flex: 0 0 58.333333%;
    max-width: 58.333333%;
  }
  .col-xl-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
  }
  .col-xl-9 {
    flex: 0 0 75%;
    max-width: 75%;
  }
  .col-xl-10 {
    flex: 0 0 83.333333%;
    max-width: 83.333333%;
  }
  .col-xl-11 {
    flex: 0 0 91.666667%;
    max-width: 91.666667%;
  }
  .col-xl-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* Application-specific responsive styles */
@media (max-width: 768px) {
  .main-navigation {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    gap: 1rem;
    padding: 1rem;
  }

  .nav-menu {
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav-user {
    justify-content: center;
  }

  .main-content {
    padding: 1rem;
  }

  .login-container {
    max-width: 380px;
    padding: 2rem;
  }

  .demo-credentials {
    padding: 0.75rem;
  }

  .demo-credentials h4 {
    font-size: 0.85rem;
  }

  .demo-credentials p {
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  #login-screen {
    padding: 0.5rem;
    align-items: flex-start;
    padding-top: 2rem;
  }

  .login-container {
    margin: 0;
    padding: 1.5rem;
    border-radius: 12px;
    max-width: 100%;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  }

  .login-header h1 {
    font-size: 1.5rem;
  }

  .login-subtitle {
    font-size: 0.9rem;
  }

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

  .form-input {
    padding: 1rem 0.75rem;
    font-size: 16px; /* Prevents zoom on iOS */
  }

  .login-btn {
    padding: 1rem 1.5rem;
    font-size: 1.05rem;
  }

  .nav-menu {
    flex-direction: column;
    width: 100%;
  }

  .nav-link {
    text-align: center;
  }

  .demo-credentials {
    padding: 0.75rem;
    margin-top: 1rem;
  }

  .demo-credentials h4 {
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
  }

  .demo-credentials p {
    font-size: 0.8rem;
    line-height: 1.5;
    margin: 0.5rem 0;
  }
}

/* Extra small devices */
@media (max-width: 320px) {
  .login-container {
    padding: 1.25rem;
  }

  .login-header h1 {
    font-size: 1.35rem;
  }

  .demo-credentials {
    padding: 0.5rem;
  }

  .demo-credentials p {
    font-size: 0.75rem;
  }
}
/* Modal Styles - Bulletproof centering */
.modal {
  display: none;
  position: fixed !important;
  z-index: 9999 !important;
  left: 0 !important;
  top: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  margin: 0 !important;
  padding: 0 !important;
  box-sizing: border-box !important;

  /* Break out of any parent constraints */
  transform: none !important;
  clip: none !important;
  overflow: visible !important;
}

/* Specific override for user modal */
#user-modal.modal {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  z-index: 10000 !important;
  margin: 0 !important;
  padding: 0 !important;
  transform: none !important;
  clip: auto !important;
  overflow: visible !important;
  background-color: rgba(0, 0, 0, 0.5) !important;
}

#user-modal.modal.show {
  display: block !important;
}

.modal.show {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  animation: modalFadeIn 0.3s ease;
}

.modal-content {
  background: var(--surface-color);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  width: 90% !important;
  max-width: 800px !important;
  max-height: 85vh !important;
  overflow-y: auto;
  animation: modalSlideIn 0.3s ease;
  margin: 2rem !important;
  position: relative !important;
  transform: translateZ(0) !important; /* Force hardware acceleration */
}

/* Override for profile modals - use programmatic positioning */
#profile-edit-modal.modal .modal-content,
#password-modal.modal .modal-content {
  position: fixed !important;
  margin: 0 !important;
  top: 50% !important;
  left: 50% !important;
  transform: translate(-50%, -50%) !important;
  width: 800px !important;
  max-width: 90vw !important;
  /* Allow JavaScript to set transform for centering */
}

/* Force proper modal content sizing for user modals */
#user-modal .modal-content {
  width: 800px !important;
  max-width: 90vw !important;
  height: auto !important;
  max-height: 90vh !important;
  margin: 0 !important;
  position: fixed !important;
  top: 50% !important;
  left: 50% !important;
  transform: translate(-50%, -50%) !important;
  z-index: 10001 !important;
  animation: none !important; /* Disable the problematic modalSlideIn animation */
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  margin: 0;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 0.5rem;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.modal-close:hover {
  background: var(--background-color);
  color: var(--text-primary);
}

.modal form {
  padding: 1.5rem;
}

/* Ensure body can show modals properly */
body.modal-open {
  overflow: visible !important; /* Changed from hidden to visible */
  position: relative; /* Ensure proper stacking context */
}

/* Ensure all containers allow modal overlay */
body.modal-open * {
  /* Allow modals to break out of container constraints */
  transform: none !important;
  clip: auto !important;
  overflow: visible !important;
}

/* Reset any container overflow when modal is open */
body.modal-open .container,
body.modal-open .content,
body.modal-open .main-content,
body.modal-open #main-content,
body.modal-open .app-container {
  overflow: visible !important;
  transform: none !important;
  clip: auto !important;
}

/* Modal Animations */
@keyframes modalFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes modalSlideIn {
  from {
    transform: translateY(-30px) scale(0.95);
    opacity: 0;
  }
  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

/* Alert Styles */
.alert {
  padding: 1rem 1.5rem;
  border-radius: 8px;
  margin: 1rem 0;
  border: 1px solid;
}

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

.alert-warning {
  background-color: #fffbeb;
  border-color: #fed7aa;
  color: #92400e;
}

.alert-info {
  background-color: #eff6ff;
  border-color: #bfdbfe;
  color: #1e40af;
}

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

/* Form Row */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .modal-content {
    width: 95%;
    margin: 1rem;
  }
}