/* ==========================================================================
   SAFESTOPHELIX - UI COMPONENTS & INTERACTIVE SURFACES
   ========================================================================== */

/* --------------------------------------------------------------------------
   BUTTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  padding: 0.85rem 1.6rem;
  border-radius: 9999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.btn-primary {
  background: var(--text-primary);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(18, 20, 26, 0.12);
}

.btn-primary:hover {
  background: #2563EB;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.25);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-subtle);
}

.btn-secondary:hover {
  background: var(--bg-secondary);
  border-color: var(--text-primary);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--helix-blue);
  color: #FFFFFF;
}

.btn-accent:hover {
  background: #1D4ED8;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.btn-dark {
  background: #111317;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn-dark:hover {
  background: #1E222B;
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}

.btn-sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 1.1rem 2.2rem;
  font-size: 1.0625rem;
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform 0.25s ease;
}

.btn:hover svg.arrow {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   BADGES & CHIPS
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}

.badge-helix {
  background: rgba(37, 99, 235, 0.08);
  color: var(--helix-blue);
  border-color: rgba(37, 99, 235, 0.2);
}

.badge-emerald {
  background: rgba(5, 150, 105, 0.08);
  color: var(--helix-emerald);
  border-color: rgba(5, 150, 105, 0.2);
}

.badge-amber {
  background: rgba(217, 119, 6, 0.08);
  color: var(--helix-amber);
  border-color: rgba(217, 119, 6, 0.2);
}

.badge-rose {
  background: rgba(220, 38, 38, 0.08);
  color: var(--helix-rose);
  border-color: rgba(220, 38, 38, 0.2);
}

.badge-dark {
  background: #111317;
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.15);
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  position: relative;
}

.pulse-dot::after {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.4;
  animation: pulse-ring 1.8s cubic-bezier(0.24, 0, 0.38, 1) infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.6); opacity: 0.8; }
  100% { transform: scale(2.2); opacity: 0; }
}

/* --------------------------------------------------------------------------
   CARD SURFACES
   -------------------------------------------------------------------------- */
.card-surface {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 24px;
  padding: clamp(1.75rem, 3vw, 2.75rem);
  box-shadow: var(--shadow-card);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.card-interactive:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-medium);
}

.card-glass {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 8px 32px rgba(18, 20, 26, 0.04);
}

.card-dark {
  background: #111317;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.card-dark h3, .card-dark h4 {
  color: #FFFFFF;
}

.card-dark p {
  color: #94A3B8;
}

/* --------------------------------------------------------------------------
   METRICS & KPI STAT BOARDS
   -------------------------------------------------------------------------- */
.metric-card {
  padding: 1.5rem;
  border-radius: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
}

.metric-label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 0.5rem;
}

.metric-value {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 2.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.1;
}

.metric-delta {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   ALERT CARDS (AI GUARDIAN FEED)
   -------------------------------------------------------------------------- */
.alert-card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.35rem 1.6rem;
  border-radius: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-left-width: 4px;
  transition: all 0.25s ease;
}

.alert-card.severity-red {
  border-left-color: var(--helix-rose);
  background: linear-gradient(90deg, rgba(220, 38, 38, 0.03) 0%, #FFFFFF 100%);
}

.alert-card.severity-amber {
  border-left-color: var(--helix-amber);
  background: linear-gradient(90deg, rgba(217, 119, 6, 0.03) 0%, #FFFFFF 100%);
}

.alert-card.severity-yellow {
  border-left-color: #EAB308;
  background: linear-gradient(90deg, rgba(234, 179, 8, 0.03) 0%, #FFFFFF 100%);
}

.alert-card.severity-green {
  border-left-color: var(--helix-emerald);
  background: linear-gradient(90deg, rgba(5, 150, 105, 0.03) 0%, #FFFFFF 100%);
}

.alert-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.alert-title {
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--text-primary);
}

.alert-desc {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.alert-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.25rem;
}

/* --------------------------------------------------------------------------
   ACCORDIONS
   -------------------------------------------------------------------------- */
.accordion-group {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 18px;
  overflow: hidden;
  transition: all 0.25s ease;
}

.accordion-item.active {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-card);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 1.75rem;
  text-align: left;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
}

.accordion-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, background 0.2s ease;
}

.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
  background: var(--text-primary);
  color: #FFFFFF;
}

.accordion-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 0 1.75rem;
}

.accordion-item.active .accordion-content {
  grid-template-rows: 1fr;
  padding-bottom: 1.5rem;
}

.accordion-inner {
  overflow: hidden;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   TABS SYSTEM
   -------------------------------------------------------------------------- */
.tabs-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-secondary);
  padding: 0.4rem;
  border-radius: 9999px;
  width: fit-content;
}

.tab-btn {
  padding: 0.6rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: 9999px;
  transition: all 0.2s ease;
}

.tab-btn.active {
  background: #FFFFFF;
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* --------------------------------------------------------------------------
   FORM ELEMENTS
   -------------------------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.9rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: 12px;
  font-size: 0.9375rem;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--helix-blue);
  box-shadow: 0 0 0 4px var(--helix-blue-subtle);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* --------------------------------------------------------------------------
   FLOATING NOTIFICATION TOAST
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  padding: 1rem 1.5rem;
  border-radius: 14px;
  background: var(--bg-dark);
  color: #FFFFFF;
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-float);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideInUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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