/* ============================================================================
   NexPeer — Component Styles
   Buttons, cards, forms, chips, tabs, avatars, modals, toasts
   ============================================================================ */

/* ---------------------------------------------------------------------------
   1. Buttons
--------------------------------------------------------------------------- */

.np-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  padding: 0.75rem 1.25rem;
  border-radius: var(--np-radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: transform var(--np-fast) var(--np-ease),
              box-shadow var(--np-fast) var(--np-ease),
              background-color var(--np-fast) var(--np-ease),
              border-color var(--np-fast) var(--np-ease),
              color var(--np-fast) var(--np-ease);
  user-select: none;
}

.np-btn:disabled,
.np-btn[aria-disabled='true'] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none !important;
}

.np-btn-primary {
  background: linear-gradient(135deg, var(--np-royal) 0%, var(--np-navy) 100%);
  color: #fff;
  box-shadow: var(--np-shadow-xs);
}
.np-btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--np-shadow);
}
.np-btn-primary:active:not(:disabled) { transform: translateY(0); }

.np-btn-gold {
  background: linear-gradient(135deg, var(--np-gold-light) 0%, var(--np-gold) 100%);
  color: var(--np-navy);
  box-shadow: var(--np-shadow-xs);
}
.np-btn-gold:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--np-shadow);
}

.np-btn-ghost {
  background: transparent;
  color: var(--np-navy);
  border-color: var(--np-border);
}
.np-btn-ghost:hover:not(:disabled) {
  background: var(--np-canvas);
  border-color: var(--np-royal-light);
}

.np-btn-danger {
  background: var(--np-danger);
  color: #fff;
  border-color: var(--np-danger);
}
.np-btn-danger:hover:not(:disabled) {
  background: #B91C1C;
  transform: translateY(-1px);
}

.np-btn-sm { padding: 0.5rem 0.875rem; font-size: 0.8125rem; }
.np-btn-lg { padding: 1rem 1.75rem; font-size: 1rem; }

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

/* ---------------------------------------------------------------------------
   2. Cards
--------------------------------------------------------------------------- */

.np-card {
  background: var(--np-surface);
  border: 1px solid var(--np-border);
  border-radius: var(--np-radius-lg);
  padding: 1.5rem;
  box-shadow: var(--np-shadow-xs);
  transition: box-shadow var(--np-base) var(--np-ease),
              transform var(--np-base) var(--np-ease),
              border-color var(--np-base) var(--np-ease);
}

.np-card-hover:hover {
  box-shadow: var(--np-shadow);
  transform: translateY(-2px);
  border-color: rgba(59, 91, 199, 0.35);
}

.np-card-flat {
  box-shadow: none;
}

.np-card-gradient {
  background: linear-gradient(135deg, var(--np-royal) 0%, var(--np-navy) 100%);
  border: none;
  color: #fff;
}
.np-card-gradient h1,
.np-card-gradient h2,
.np-card-gradient h3 { color: #fff; }
.np-card-gradient .np-text-muted { color: rgba(255, 255, 255, 0.75); }

.np-card-dark {
  background: var(--np-navy);
  border: none;
  color: #fff;
}

/* ---------------------------------------------------------------------------
   3. Chips / Badges
--------------------------------------------------------------------------- */

.np-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.3125rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  background: var(--np-royal-50);
  color: var(--np-royal);
  white-space: nowrap;
}

.np-chip-gold {
  background: var(--np-gold-soft);
  color: var(--np-gold-deep);
}

.np-chip-success {
  background: var(--np-success-bg);
  color: var(--np-success);
}

.np-chip-danger {
  background: var(--np-danger-bg);
  color: var(--np-danger);
}

.np-chip-muted {
  background: var(--np-canvas);
  color: var(--np-muted);
}

.np-chip-lg {
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
}

/* Percentage badge */
.np-badge-percent {
  display: inline-block;
  padding: 0.4rem 0.75rem;
  border-radius: 9999px;
  background: linear-gradient(135deg, var(--np-gold-light) 0%, var(--np-gold) 100%);
  color: var(--np-navy);
  font-weight: 800;
  font-size: 0.8125rem;
}

/* ---------------------------------------------------------------------------
   4. Forms
--------------------------------------------------------------------------- */

.np-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--np-navy);
  margin-bottom: 0.375rem;
}

.np-input,
.np-select,
.np-textarea {
  width: 100%;
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--np-ink);
  background: #fff;
  border: 1px solid var(--np-border);
  border-radius: var(--np-radius-sm);
  padding: 0.625rem 0.875rem;
  transition: border-color var(--np-fast),
              box-shadow var(--np-fast);
}

.np-input:focus,
.np-select:focus,
.np-textarea:focus {
  outline: none;
  border-color: var(--np-royal-light);
  box-shadow: 0 0 0 3px rgba(59, 91, 199, 0.15);
}

.np-input::placeholder,
.np-textarea::placeholder {
  color: #94A3B8;
}

.np-textarea {
  resize: vertical;
  min-height: 6rem;
  line-height: 1.5;
}

.np-input-error {
  border-color: var(--np-danger) !important;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12) !important;
}

.np-help {
  font-size: 0.75rem;
  color: var(--np-muted);
  margin-top: 0.375rem;
}

.np-checkbox {
  width: 1.125rem;
  height: 1.125rem;
  accent-color: var(--np-royal);
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

/* ---------------------------------------------------------------------------
   5. Alerts
--------------------------------------------------------------------------- */

.np-alert {
  padding: 0.75rem 1rem;
  border-radius: var(--np-radius-sm);
  font-size: 0.875rem;
  line-height: 1.5;
  border: 1px solid transparent;
}

.np-alert-error {
  background: var(--np-danger-bg);
  border-color: #FECACA;
  color: #991B1B;
}

.np-alert-success {
  background: var(--np-success-bg);
  border-color: #A7F3D0;
  color: #065F46;
}

.np-alert-info {
  background: var(--np-royal-50);
  border-color: #C7D2FE;
  color: var(--np-royal);
}

.np-alert-warn {
  background: var(--np-warning-bg);
  border-color: #FDE68A;
  color: #854D0E;
}

/* ---------------------------------------------------------------------------
   6. Tabs
--------------------------------------------------------------------------- */

.np-tabs {
  display: inline-flex;
  padding: 0.25rem;
  background: var(--np-canvas);
  border-radius: var(--np-radius);
  gap: 0.25rem;
}

.np-tab {
  padding: 0.5rem 1.25rem;
  border-radius: calc(var(--np-radius) - 0.25rem);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--np-muted);
  cursor: pointer;
  border: none;
  background: transparent;
  transition: background-color var(--np-fast),
              color var(--np-fast),
              box-shadow var(--np-fast);
}

.np-tab[aria-selected='true'] {
  background: #fff;
  color: var(--np-navy);
  box-shadow: var(--np-shadow-xs);
}

/* ---------------------------------------------------------------------------
   7. Progress bars
--------------------------------------------------------------------------- */

.np-progress {
  height: 0.625rem;
  background: var(--np-canvas);
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
}

.np-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--np-gold-light) 0%, var(--np-gold) 100%);
  border-radius: 9999px;
  transition: width 600ms var(--np-ease);
  width: 0%;
}

.np-progress-bar-royal {
  background: linear-gradient(90deg, var(--np-royal-light) 0%, var(--np-royal) 100%);
}

/* ---------------------------------------------------------------------------
   8. Avatar + online dot
--------------------------------------------------------------------------- */

.np-avatar-wrap {
  position: relative;
  display: inline-block;
  flex-shrink: 0;
}

.np-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  background: linear-gradient(135deg, var(--np-royal) 0%, var(--np-navy) 100%);
  color: #fff;
  font-weight: 700;
  overflow: hidden;
  user-select: none;
}

.np-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.np-avatar-xs { width: 24px; height: 24px; font-size: 0.625rem; }
.np-avatar-sm { width: 32px; height: 32px; font-size: 0.75rem; }
.np-avatar-md { width: 40px; height: 40px; font-size: 0.875rem; }
.np-avatar-lg { width: 56px; height: 56px; font-size: 1.25rem; }
.np-avatar-xl { width: 80px; height: 80px; font-size: 1.75rem; }

.np-online-dot {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 12px;
  height: 12px;
  border-radius: 9999px;
  background: #22C55E;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px rgba(10, 26, 63, 0.08);
}

.np-online-dot.is-offline { background: #94A3B8; }
.np-avatar-xs + .np-online-dot,
.np-avatar-sm + .np-online-dot { width: 9px; height: 9px; bottom: 0; right: 0; }
.np-avatar-xl + .np-online-dot { width: 16px; height: 16px; bottom: 4px; right: 4px; }

/* ---------------------------------------------------------------------------
   9. Skeleton
--------------------------------------------------------------------------- */

.np-skeleton {
  background: linear-gradient(90deg, #EEF2F7 25%, #F8FAFC 50%, #EEF2F7 75%);
  background-size: 200% 100%;
  animation: np-shimmer 1.6s infinite linear;
  border-radius: var(--np-radius-sm);
  height: 0.75rem;
  margin-bottom: 0.75rem;
}

.np-skeleton-lg { height: 1.25rem; }
.np-skeleton-xl { height: 2rem; }
.np-skeleton:last-child { margin-bottom: 0; }

/* ---------------------------------------------------------------------------
   10. Empty state
--------------------------------------------------------------------------- */

.np-empty {
  text-align: center;
  padding: 3rem 1.5rem;
}

.np-empty-icon {
  font-size: 3rem;
  line-height: 1;
  margin-bottom: 1rem;
}

.np-empty-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--np-navy);
  margin-bottom: 0.5rem;
}

.np-empty-message {
  color: var(--np-muted);
  font-size: 0.9375rem;
  max-width: 26rem;
  margin: 0 auto 1.25rem;
  line-height: 1.5;
}

/* ---------------------------------------------------------------------------
   11. Modal / dialog
--------------------------------------------------------------------------- */

.np-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10, 26, 63, 0.55);
  backdrop-filter: blur(4px);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: np-fade-in var(--np-fast) var(--np-ease);
}

.np-modal {
  background: #fff;
  border-radius: var(--np-radius-lg);
  max-width: 28rem;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--np-shadow-lg);
  animation: np-fade-up var(--np-base) var(--np-ease);
}

.np-modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--np-border-soft);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.np-modal-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--np-navy);
  margin: 0;
}

.np-modal-body { padding: 1.5rem; }

.np-modal-footer {
  padding: 1rem 1.5rem 1.5rem;
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.np-modal-close {
  width: 2rem;
  height: 2rem;
  border-radius: 9999px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--np-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  line-height: 1;
  transition: background-color var(--np-fast), color var(--np-fast);
}

.np-modal-close:hover {
  background: var(--np-canvas);
  color: var(--np-navy);
}

/* ---------------------------------------------------------------------------
   12. Toast
--------------------------------------------------------------------------- */

#np-toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
  max-width: 22rem;
}

.np-toast {
  padding: 0.75rem 1rem;
  border-radius: var(--np-radius);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--np-shadow);
  pointer-events: auto;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity var(--np-base) var(--np-ease),
              transform var(--np-base) var(--np-ease);
}

.np-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.np-toast-info {
  background: var(--np-royal-50);
  border: 1px solid #C7D2FE;
  color: var(--np-royal);
}
.np-toast-success {
  background: var(--np-success-bg);
  border: 1px solid #A7F3D0;
  color: #065F46;
}
.np-toast-error {
  background: var(--np-danger-bg);
  border: 1px solid #FECACA;
  color: #991B1B;
}
.np-toast-warn {
  background: var(--np-warning-bg);
  border: 1px solid #FDE68A;
  color: #854D0E;
}

/* ---------------------------------------------------------------------------
   13. Navbar
--------------------------------------------------------------------------- */

.np-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--np-border);
}

.np-nav {
  height: var(--np-header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.np-nav-links {
  display: none;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.np-nav-links a {
  color: var(--np-muted);
  transition: color var(--np-fast);
}
.np-nav-links a:hover,
.np-nav-links a.is-active { color: var(--np-navy); }

@media (min-width: 768px) {
  .np-nav-links { display: flex; }
}

/* ---------------------------------------------------------------------------
   14. Footer
--------------------------------------------------------------------------- */

.np-footer {
  background: var(--np-navy);
  color: rgba(255, 255, 255, 0.7);
  padding: 2.5rem 1rem;
  font-size: 0.8125rem;
}

.np-footer a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--np-fast);
}
.np-footer a:hover { color: var(--np-gold); }

.np-footer-brand { color: #fff; font-weight: 800; }

/* ---------------------------------------------------------------------------
   15. Divider
--------------------------------------------------------------------------- */

.np-divider {
  height: 1px;
  background: var(--np-border);
  border: none;
  margin: 1.5rem 0;
}

.np-divider-soft { background: var(--np-border-soft); }