/* SI-PPL Components */

/* Cards */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-md);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 1rem;
  min-height: 44px;
  transition: all 0.2s;
}

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

.btn-primary:hover { background: var(--color-primary-dark); }
.btn-primary:active { transform: scale(0.98); }

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

.btn-block { width: 100%; }

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Form */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--color-text);
}

.form-input {
  width: 100%;
  padding: 0.75rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  background: var(--color-surface);
  min-height: 44px;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.form-input.error {
  border-color: var(--color-danger);
}

.form-error {
  color: var(--color-danger);
  font-size: 0.875rem;
  margin-top: var(--space-xs);
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-draft { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-submitted { background: var(--color-info-bg); color: var(--color-info); }
.badge-approved { background: var(--color-success-bg); color: var(--color-success); }
.badge-rejected { background: var(--color-danger-bg); color: var(--color-danger); }

/* Loading */
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-xl);
  color: var(--color-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

/* Error State */
.error-state {
  text-align: center;
  padding: var(--space-xl);
  color: var(--color-danger);
}

/* Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--color-primary);
  color: white;
  padding: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
}

.app-header h1 {
  font-size: 1.25rem;
  font-weight: 600;
}

/* Bottom Navigation */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-around;
  padding: var(--space-sm) 0;
  min-height: 60px;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--color-muted);
  font-size: 0.75rem;
  padding: var(--space-xs) var(--space-sm);
  min-width: 64px;
  min-height: 44px;
}

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

.nav-item svg {
  width: 24px;
  height: 24px;
}

/* Page Container */
.page {
  min-height: calc(100vh - 56px - 60px);
  padding: var(--space-md);
  padding-bottom: 80px;
}

/* List */
.list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-divider);
}

.list-item:last-child {
  border-bottom: none;
}

/* Section */
.section-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-sm);
  margin-top: var(--space-lg);
}

/* Select */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23616161' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}