/**
 * Dead Man's Switch - Main Stylesheet
 */

:root {
  --primary-color: #2c3e50;
  --primary-dark: #1a252f;
  --secondary-color: #e74c3c;
  --secondary-light: #ff6b6b;
  --success-color: #2ecc71;
  --warning-color: #f39c12;
  --danger-color: #c0392b;
  --info-color: #3498db;
  --light-color: #f8f9fa;
  --dark-color: #343a40;
  --gray-color: #6c757d;
  --light-gray: #e9ecef;
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  --border-radius: 0.25rem;
  --transition: all 0.2s ease-in-out;
}

/* Base Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: #f5f5f5;
  margin: 0;
  padding: 0;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--secondary-color);
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-weight: 500;
  line-height: 1.2;
  color: var(--primary-color);
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Navbar */
.navbar {
  background-color: var(--primary-color);
  padding: 1rem 0;
  box-shadow: var(--shadow);
  position: relative;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: bold;
  color: white;
}

.brand-icon {
  margin-right: 0.5rem;
  font-size: 1.8rem;
}

.brand-text {
  display: none;
}

.navbar-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 24px;
  width: 30px;
  cursor: pointer;
}

.navbar-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: white;
  border-radius: 3px;
  transition: var(--transition);
}

#navbar-toggle-checkbox {
  display: none;
}

.navbar-menu {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--primary-dark);
  flex-direction: column;
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-in-out;
}

#navbar-toggle-checkbox:checked ~ .navbar-menu {
  max-height: 300px;
}

.navbar-item {
  padding: 0.75rem 1rem;
  color: white;
  text-align: center;
  transition: var(--transition);
}

.navbar-item:hover, .navbar-item.active {
  background-color: rgba(255, 255, 255, 0.1);
}

.navbar-right {
  width: 100%;
}

.dropdown {
  position: relative;
  width: 100%;
}

.dropdown-toggle {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  background: none;
  border: none;
  text-align: center;
  color: white;
  font-size: 1rem;
  cursor: pointer;
}

.dropdown-menu {
  display: none;
  position: static;
  width: 100%;
  background-color: var(--dark-color);
}

.dropdown:hover .dropdown-menu {
  display: block;
}

.dropdown-item {
  display: block;
  padding: 0.75rem 1rem;
  color: white;
  text-align: center;
}

.dropdown-divider {
  height: 1px;
  background-color: var(--gray-color);
  margin: 0.25rem 0;
}

/* Main content */
main.container {
  padding-top: 2rem;
  padding-bottom: 3rem;
}

/* Alert messages */
.alert {
  padding: 1rem;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  position: relative;
}

.alert-success {
  background-color: rgba(46, 204, 113, 0.2);
  border: 1px solid var(--success-color);
  color: var(--success-color);
}

.alert-warning {
  background-color: rgba(243, 156, 18, 0.2);
  border: 1px solid var(--warning-color);
  color: var(--warning-color);
}

.alert-danger {
  background-color: rgba(192, 57, 43, 0.2);
  border: 1px solid var(--danger-color);
  color: var(--danger-color);
}

.alert-info {
  background-color: rgba(52, 152, 219, 0.2);
  border: 1px solid var(--info-color);
  color: var(--info-color);
}

.alert-close {
  position: absolute;
  right: 0.5rem;
  top: 0.5rem;
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: inherit;
  opacity: 0.7;
}

.alert-close:hover {
  opacity: 1;
}

/* Cards */
.card {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.card-header {
  padding: 1rem;
  background-color: var(--light-gray);
  border-bottom: 1px solid rgba(0, 0, 0, 0.125);
}

.card-title {
  margin: 0;
  font-size: 1.25rem;
}

.card-body {
  padding: 1rem;
}

.card-footer {
  padding: 1rem;
  background-color: var(--light-gray);
  border-top: 1px solid rgba(0, 0, 0, 0.125);
}

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

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-control {
  display: block;
  width: 100%;
  padding: 0.375rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--dark-color);
  background-color: white;
  background-clip: padding-box;
  border: 1px solid var(--light-gray);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.25);
}

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 400;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: 0.375rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: var(--border-radius);
  transition: var(--transition);
  cursor: pointer;
}

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

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

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

.btn-secondary:hover {
  background-color: var(--danger-color);
  border-color: var(--danger-color);
}

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

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

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

.btn-block {
  display: block;
  width: 100%;
}

/* Tables */
.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}

th, td {
  padding: 0.75rem;
  vertical-align: top;
  border-top: 1px solid var(--light-gray);
}

thead th {
  vertical-align: bottom;
  border-bottom: 2px solid var(--light-gray);
  background-color: var(--light-color);
  color: var(--primary-color);
  font-weight: 500;
  text-align: left;
}

tbody tr:hover {
  background-color: rgba(0, 0, 0, 0.02);
}

/* Footer */
footer {
  background-color: var(--primary-dark);
  color: white;
  padding: 2rem 0;
  margin-top: 2rem;
}

footer a {
  color: var(--light-color);
}

footer a:hover {
  color: var(--secondary-light);
}

/* Status indicators */
.status {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: bold;
}

.status-active {
  background-color: rgba(46, 204, 113, 0.2);
  color: var(--success-color);
}

.status-pending {
  background-color: rgba(243, 156, 18, 0.2);
  color: var(--warning-color);
}

.status-expired {
  background-color: rgba(192, 57, 43, 0.2);
  color: var(--danger-color);
}

.status-disabled {
  background-color: rgba(108, 117, 125, 0.2);
  color: var(--gray-color);
}

/* Dashboard stats */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.stat-card {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  text-align: center;
}

.stat-title {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray-color);
  margin-bottom: 0.5rem;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--primary-color);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-description {
  font-size: 0.875rem;
  color: var(--gray-color);
}

/* Timeline for events */
.timeline {
  position: relative;
  padding: 1.5rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 16px;
  width: 2px;
  background-color: var(--light-gray);
}

.timeline-item {
  position: relative;
  padding-left: 40px;
  margin-bottom: 1.5rem;
}

.timeline-dot {
  position: absolute;
  left: 8px;
  top: 0;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--primary-color);
}

.timeline-content {
  background-color: white;
  padding: 1rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.timeline-date {
  color: var(--gray-color);
  margin-bottom: 0.25rem;
  font-size: 0.875rem;
}

/* Media queries */
@media (min-width: 768px) {
  .brand-text {
    display: inline;
  }

  .navbar-toggle {
    display: none;
  }

  .navbar-menu {
    position: static;
    background-color: transparent;
    max-height: none;
    flex-direction: row;
    align-items: center;
    width: auto;
    overflow: visible;
  }

  .navbar-item {
    padding: 0.5rem 1rem;
    text-align: left;
  }

  .navbar-right {
    margin-left: auto;
    width: auto;
  }

  .dropdown {
    width: auto;
  }

  .dropdown-toggle {
    width: auto;
    text-align: left;
    padding: 0.5rem 1rem;
  }

  .dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    left: auto;
    width: 200px;
    box-shadow: var(--shadow);
    border-radius: var(--border-radius);
    overflow: hidden;
  }

  .dropdown-item {
    text-align: left;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline::before {
    left: 50%;
  }

  .timeline-item {
    padding-left: 0;
    padding-right: 0;
    width: 50%;
  }

  .timeline-item:nth-child(odd) {
    margin-right: 50%;
    padding-right: 40px;
    text-align: right;
  }

  .timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-left: 40px;
  }

  .timeline-dot {
    left: auto;
    right: -8px;
  }

  .timeline-item:nth-child(even) .timeline-dot {
    left: -8px;
    right: auto;
  }
}

@media (min-width: 992px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}