html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}

/* Professional Navbar Styling */
.navbar {
  min-height: 56px;
  padding: 0.55rem 0.75rem;
}

.navbar-brand {
  font-size: clamp(0.98rem, 1vw, 1.14rem);
  letter-spacing: 0.2px;
  margin-right: 0.65rem;
  white-space: nowrap;
}

.navbar-nav .nav-link {
  padding: 0.42rem 0.55rem;
  color: #495057;
  font-size: clamp(0.76rem, 0.72vw, 0.88rem);
  transition: color 0.2s ease;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  border-radius: 0.45rem 0.45rem 0 0;
}

.navbar-nav .nav-link i {
  font-size: 0.9em;
}

.navbar-nav .nav-link:hover {
  color: #0d6efd;
  background-color: rgba(13, 110, 253, 0.05);
}

.navbar-nav .nav-link.active {
  color: #0d6efd;
  font-weight: 500;
  border-bottom-color: #0d6efd;
  background-color: rgba(13, 110, 253, 0.05);
}

.navbar-nav .dropdown-toggle::after {
  margin-left: 0.35rem;
}

.dropdown-menu {
  border: 1px solid #e9ecef;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
  margin-top: 0.25rem;
}

.dropdown-item {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  transition: background-color 0.15s ease;
}

.dropdown-item:hover {
  background-color: #f8f9fa;
  color: #0d6efd;
}

.dropdown-item:active {
  background-color: #0d6efd;
  color: white;
}

.dropdown-item-text {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.navbar-toggler {
  border: 1px solid #dee2e6;
  padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.1rem rgba(13, 110, 253, 0.25);
}

/* Responsive adjustments */
@media (max-width: 1200px) {
  .navbar {
    padding: 0.5rem 0.6rem;
  }

  .navbar-brand {
    max-width: 10rem;
    font-size: 0.95rem;
    text-align: left;
    word-break: normal;
  }

  .navbar-brand i {
    margin-right: 0.35rem !important;
  }

  .navbar-nav .nav-link {
    padding-left: 0.42rem;
    padding-right: 0.42rem;
    font-size: 0.78rem;
  }

  .navbar-nav .nav-link i {
    margin-right: 0.2rem !important;
  }

  .navbar-brand span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

@media (max-width: 1100px) and (min-width: 992px) {
  .navbar-brand {
    max-width: 8.25rem;
    font-size: 0.86rem;
  }

  .navbar-nav .nav-link {
    padding-left: 0.32rem;
    padding-right: 0.32rem;
    font-size: 0.7rem;
  }

  .navbar-nav .dropdown-toggle::after {
    margin-left: 0.2rem;
  }
}

@media (min-width: 992px) {
  .navbar-collapse {
    flex-wrap: nowrap;
  }

  .navbar-nav {
    flex-wrap: nowrap;
  }
}

@media (max-width: 991.98px) {
  .navbar-nav {
    margin-top: 1rem;
  }
  
  .navbar-nav .nav-link {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #e9ecef;
    white-space: normal;
  }
  
  .navbar-nav .nav-link.active {
    border-bottom: 2px solid #0d6efd;
    border-left: 3px solid #0d6efd;
  }
  
  .dropdown-menu {
    margin-left: 1rem;
    border: none;
    box-shadow: none;
    background-color: #f8f9fa;
  }
}

@media (max-width: 768px) {
  .navbar {
    min-height: 56px;
  }

  .navbar-brand {
    font-size: 1rem;
  }

  .navbar-nav .nav-link {
    border-radius: 0.5rem;
  }
}

@media (max-width: 576px) {
  .navbar {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }

  .navbar-brand {
    max-width: calc(100vw - 4.5rem);
  }

  .navbar-brand i {
    margin-right: 0.4rem !important;
  }
}

/* Session Timeout Modal Styling */
#sessionTimeoutModal .modal-content {
  border-radius: 0.75rem;
  overflow: hidden;
}

#sessionTimeoutModal .modal-header {
  background: linear-gradient(135deg, #ffc107 0%, #ff9800 100%);
  padding: 1.5rem;
}

.session-warning-icon {
  animation: pulse-icon 2s ease-in-out infinite;
}

@keyframes pulse-icon {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

.session-countdown-display {
  position: relative;
}

.countdown-circle {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(255, 107, 107, 0.3);
  animation: countdown-pulse 1s ease-in-out infinite;
  position: relative;
}

.countdown-circle::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.3);
  animation: countdown-ring 1s ease-in-out infinite;
}

@keyframes countdown-pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 8px 24px rgba(255, 107, 107, 0.3);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 12px 32px rgba(255, 107, 107, 0.5);
  }
}

@keyframes countdown-ring {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(1.2);
    opacity: 0;
  }
}

.countdown-text {
  font-size: 2rem;
  font-weight: 700;
  color: white;
  font-family: 'Courier New', 'Consolas', monospace;
  letter-spacing: 2px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  z-index: 1;
  position: relative;
}

.bg-gradient-warning {
  background: linear-gradient(135deg, #ffc107 0%, #ff9800 100%);
}

/* Session Status Indicator */
.session-status {
  font-size: 0.75rem;
  color: #6c757d;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  background-color: #f8f9fa;
  transition: all 0.3s ease;
}

.session-status.warning {
  color: #856404;
  background-color: #fff3cd;
}

.session-status.expiring {
  color: #721c24;
  background-color: #f8d7da;
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* Toast Notifications */
.toast {
  min-width: 300px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border-radius: 0.5rem;
}

.toast.show {
  animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Smooth transitions for session modals */
.modal.fade .modal-dialog {
  transition: transform 0.3s ease-out;
  transform: translate(0, -50px);
}

.modal.show .modal-dialog {
  transform: translate(0, 0);
}

/* Professional alert styling */
.alert {
  border-radius: 0.5rem;
  border-left: 4px solid;
}

.alert-warning {
  border-left-color: #ffc107;
  background-color: #fff3cd;
}

.alert-info {
  border-left-color: #0dcaf0;
  background-color: #cff4fc;
}

/* Masters hub — tile grid (registry-driven landing page) */
.masters-hub-page .masters-hub-tile .card {
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.masters-hub-page .masters-hub-tile:hover .card {
  border-color: var(--bs-primary) !important;
  box-shadow: 0 0.25rem 0.75rem rgba(13, 110, 253, 0.12) !important;
}
.masters-hub-page .masters-hub-tile-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background-color: rgba(13, 110, 253, 0.1);
  color: var(--bs-primary);
  font-size: 1.15rem;
}
.masters-hub-page .masters-hub-tile:hover .masters-hub-tile-icon {
  background-color: rgba(13, 110, 253, 0.18);
}