/* ════════════════════════════════════════════════════════
   NAGRIVA — Performance & Lazy Loading Styles
   ════════════════════════════════════════════════════════ */

/* ─── Layout Shift Prevention ─── */
.sk-container {
  contain: layout style paint;
  min-height: 40px;
}

.sk-container--stats { min-height: 120px; }
.sk-container--orders { min-height: 200px; }
.sk-container--activity { min-height: 200px; }
.sk-container--messages { min-height: 200px; }
.sk-container--notifications { min-height: 200px; }
.sk-container--projects { min-height: 250px; }
.sk-container--services { min-height: 600px; }
.sk-container--profile { min-height: 300px; }
.sk-container--results { min-height: 400px; }
.sk-container--full { min-height: 60vh; }

/* ─── Premium Shimmer Animation ─── */
@keyframes nagriva-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes nagriva-shimmer-reverse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes nagriva-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ─── Reusable Skeleton Base ─── */
.skeleton-base {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.02) 25%,
    rgba(255, 255, 255, 0.05) 37%,
    rgba(255, 255, 255, 0.02) 63%
  );
  background-size: 200% 100%;
  animation: nagriva-shimmer 1.8s ease-in-out infinite;
  border-radius: 8px;
}

.skeleton-block {
  height: 20px;
  margin-bottom: 12px;
}

.skeleton-block.w20 { width: 20%; }
.skeleton-block.w30 { width: 30%; }
.skeleton-block.w40 { width: 40%; }
.skeleton-block.w50 { width: 50%; }
.skeleton-block.w60 { width: 60%; }
.skeleton-block.w70 { width: 70%; }
.skeleton-block.w80 { width: 80%; }
.skeleton-block.w90 { width: 90%; }
.skeleton-block.w100 { width: 100%; }

/* ─── Skeleton Card Container ─── */
.skeleton-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 16px;
  padding: 24px;
  overflow: hidden;
}

.skeleton-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 10px;
  margin-bottom: 16px;
}

.skeleton-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  flex-shrink: 0;
}

.skeleton-line {
  height: 10px;
  margin-bottom: 8px;
}

.skeleton-line:last-child {
  margin-bottom: 0;
}

.skeleton-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}

/* ─── Premium Skeleton System ─── */

/* Skeleton shimmer bar - universal */
.sk-shimmer {
  background: linear-gradient(
    90deg,
    rgba(255,255,255,0.02) 0%,
    rgba(255,255,255,0.06) 40%,
    rgba(255,255,255,0.02) 80%
  );
  background-size: 200% 100%;
  animation: nagriva-shimmer-reverse 1.6s ease-in-out infinite;
  border-radius: 6px;
}

/* Skeleton stat card (dashboard stats) */
.sk-stat {
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  position: relative;
  overflow: hidden;
}
.sk-stat-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  margin-bottom: 12px;
}
.sk-stat-value {
  height: 24px; width: 55%;
  border-radius: 6px;
  margin-bottom: 4px;
}
.sk-stat-label {
  height: 12px; width: 65%;
  border-radius: 6px;
  margin-bottom: 6px;
}
.sk-stat-change {
  height: 10px; width: 40%;
  border-radius: 99px;
}

/* Skeleton row (orders, activity, messages, notifications) */
.sk-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
}
.sk-row-icon {
  width: 28px; height: 28px;
  border-radius: 8px;
  flex-shrink: 0;
}
.sk-row-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.sk-row-line {
  height: 12px;
  border-radius: 6px;
}
.sk-row-line-sm {
  height: 8px;
  width: 55%;
  border-radius: 6px;
}
.sk-row-end {
  width: 40px; height: 8px;
  border-radius: 4px;
  flex-shrink: 0;
}

/* Skeleton avatar row (messages) */
.sk-avatar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
}
.sk-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
}
.sk-avatar-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sk-avatar-name {
  height: 12px; width: 30%;
  border-radius: 6px;
}
.sk-avatar-preview {
  height: 10px; width: 65%;
  border-radius: 6px;
}
.sk-avatar-time {
  width: 32px; height: 8px;
  border-radius: 4px;
  flex-shrink: 0;
}

/* Skeleton project card */
.sk-project {
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.015);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sk-project-line {
  height: 12px;
  border-radius: 6px;
}
.sk-project-line.w70 { width: 70%; }
.sk-project-line.w50 { width: 50%; }
.sk-project-line.w40 { width: 40%; }

/* Skeleton notification row */
.sk-notif {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
}
.sk-notif-icon {
  width: 28px; height: 28px;
  border-radius: 8px;
  flex-shrink: 0;
  margin-top: 2px;
}
.sk-notif-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sk-notif-title {
  height: 13px; width: 45%;
  border-radius: 6px;
}
.sk-notif-msg {
  height: 10px; width: 75%;
  border-radius: 6px;
}
.sk-notif-time {
  height: 8px; width: 20%;
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 4px;
}

/* Skeleton timeline (activity feed) */
.sk-timeline {
  display: flex;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
}
.sk-timeline-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 4px;
}
.sk-timeline-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sk-timeline-title {
  height: 12px; width: 55%;
  border-radius: 6px;
}
.sk-timeline-desc {
  height: 10px; width: 80%;
  border-radius: 6px;
}
.sk-timeline-time {
  height: 8px; width: 22%;
  border-radius: 4px;
}

/* Skeleton profile header */
.sk-profile {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 40px;
}
.sk-profile-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  flex-shrink: 0;
}
.sk-profile-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sk-profile-name {
  height: 24px; width: 35%;
  border-radius: 6px;
}
.sk-profile-email {
  height: 14px; width: 45%;
  border-radius: 6px;
}
.sk-profile-joined {
  height: 12px; width: 30%;
  border-radius: 6px;
}

/* Skeleton services card */
.sk-service-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 20px;
  overflow: hidden;
}
.sk-service-img {
  height: 200px;
}
.sk-service-body {
  padding: 22px 24px 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.sk-service-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
}
.sk-service-line {
  height: 14px;
  border-radius: 6px;
}
.sk-service-line.w70 { width: 70%; }
.sk-service-line.w100 { width: 100%; }
.sk-service-line.w50 { width: 50%; }

/* Skeleton admin stat card */
.sk-admin-stat {
  padding: 24px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border);
  border-radius: 18px;
  position: relative;
  overflow: hidden;
}
.sk-admin-stat-icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  margin-bottom: 16px;
}
.sk-admin-stat-value {
  height: 28px; width: 55%;
  border-radius: 99px;
  margin-bottom: 8px;
}
.sk-admin-stat-label {
  height: 10px; width: 40%;
  border-radius: 99px;
}

/* Skeleton admin table row */
.sk-admin-tr {
  display: flex;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  align-items: center;
}
.sk-admin-td {
  height: 12px;
  border-radius: 99px;
  flex: 1;
}
.sk-admin-td.w35 { max-width: 35%; flex: none; }
.sk-admin-td.w25 { max-width: 25%; flex: none; }
.sk-admin-td.w15 { max-width: 15%; flex: none; }
.sk-admin-td.w10 { max-width: 10%; flex: none; }

/* Skeleton order card (client portal) */
.sk-order-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 18px;
  padding: 24px 28px;
  display: flex;
  align-items: center;
  gap: 20px;
  overflow: hidden;
}
.sk-order-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  flex-shrink: 0;
}
.sk-order-body {
  flex: 1;
  min-width: 0;
}
.sk-order-name {
  height: 16px; width: 55%;
  border-radius: 99px;
  margin-bottom: 8px;
}
.sk-order-meta {
  height: 10px; width: 40%;
  border-radius: 99px;
}
.sk-order-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  flex-shrink: 0;
}
.sk-order-badge {
  height: 22px; width: 90px;
  border-radius: 99px;
}
.sk-order-progress {
  display: flex;
  align-items: center;
  gap: 12px;
}
.sk-order-bar {
  width: 120px; height: 5px;
  border-radius: 99px;
}
.sk-order-pct {
  width: 28px; height: 8px;
  border-radius: 99px;
}

/* Administrative skeleton widget */
.sk-widget {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  position: relative;
  overflow: hidden;
}
.sk-widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.sk-widget-title {
  height: 14px; width: 40%;
  border-radius: 99px;
}
.sk-widget-action {
  height: 14px; width: 20%;
  border-radius: 99px;
}

/* ─── Result Card Skeletons (Results/Projects page) ─── */
.sk-result-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.sk-result-img {
  height: 220px;
}
.sk-result-card.cs-full .sk-result-img { height: 280px; }
.sk-result-body {
  padding: 22px 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sk-result-tag {
  height: 18px; width: 80px;
  border-radius: 99px;
}
.sk-result-title {
  height: 20px; width: 75%;
  border-radius: 6px;
}
.sk-result-desc {
  height: 12px; width: 100%;
  border-radius: 6px;
}
.sk-result-desc-sm {
  height: 12px; width: 60%;
  border-radius: 6px;
}
.sk-result-services {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}
.sk-result-service-tag {
  height: 20px; width: 60px;
  border-radius: 99px;
}

/* ─── Page Shell / Auth Check Skeleton ─── */
.sk-page-shell {
  position: fixed;
  inset: 0;
  z-index: 999999;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.sk-shell-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.sk-shell-logo {
  width: 120px; height: 28px;
  border-radius: 6px;
}
.sk-shell-nav {
  display: flex;
  gap: 20px;
}
.sk-shell-nav-item {
  width: 60px; height: 12px;
  border-radius: 6px;
}
.sk-shell-nav-item:last-child {
  width: 80px;
}
.sk-shell-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}
.sk-shell-card {
  width: 100%;
  max-width: 500px;
  padding: 40px;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,0.06);
  background: rgba(255,255,255,0.015);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.sk-shell-brand {
  width: 48px; height: 48px;
  border-radius: 14px;
}
.sk-shell-title {
  width: 160px; height: 18px;
  border-radius: 6px;
}
.sk-shell-desc {
  width: 220px; height: 12px;
  border-radius: 6px;
}
.sk-shell-indicator {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}
.sk-shell-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}
.sk-shell-dot-pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: skShellPulse 1.8s ease-in-out infinite;
}
.sk-shell-text {
  width: 100px; height: 10px;
  border-radius: 6px;
}
@keyframes skShellPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.3); }
}

/* ─── Fade Transition for Skeleton → Content ─── */
.sk-fade-container {
  position: relative;
  min-height: 40px;
}
.sk-fade-container > .sk-content {
  opacity: 0;
  transition: opacity 0.35s cubic-bezier(0.4,0,0.2,1);
}
.sk-fade-container > .sk-content.sk-visible {
  opacity: 1;
}
.sk-fade-container > .sk-skeleton {
  position: absolute;
  inset: 0;
  transition: opacity 0.3s cubic-bezier(0.4,0,0.2,1);
}
.sk-fade-container > .sk-skeleton.sk-hidden {
  opacity: 0;
  pointer-events: none;
}

/* ─── Staggered skeleton children ─── */
.sk-stagger > .sk-shimmer,
.sk-stagger > .sk-stat,
.sk-stagger > .sk-row,
.sk-stagger > .sk-avatar-row,
.sk-stagger > .sk-notif,
.sk-stagger > .sk-timeline,
.sk-stagger > .sk-project,
.sk-stagger > .sk-widget,
.sk-stagger > .sk-service-card,
.sk-stagger > .sk-order-card,
.sk-stagger > .sk-admin-stat,
.sk-stagger > .sk-admin-tr,
.sk-stagger > .sk-result-card {
  opacity: 0;
  animation: skFadeIn 0.35s cubic-bezier(0.4,0,0.2,1) forwards;
}
.sk-stagger > .sk-shimmer:nth-child(1),
.sk-stagger > .sk-stat:nth-child(1),
.sk-stagger > .sk-row:nth-child(1),
.sk-stagger > .sk-avatar-row:nth-child(1),
.sk-stagger > .sk-notif:nth-child(1),
.sk-stagger > .sk-timeline:nth-child(1),
.sk-stagger > .sk-project:nth-child(1),
.sk-stagger > .sk-widget:nth-child(1),
.sk-stagger > .sk-service-card:nth-child(1),
.sk-stagger > .sk-order-card:nth-child(1),
.sk-stagger > .sk-admin-stat:nth-child(1),
.sk-stagger > .sk-admin-tr:nth-child(1),
.sk-stagger > .sk-result-card:nth-child(1) { animation-delay: 0.02s; }
.sk-stagger > .sk-shimmer:nth-child(2),
.sk-stagger > .sk-stat:nth-child(2),
.sk-stagger > .sk-row:nth-child(2),
.sk-stagger > .sk-avatar-row:nth-child(2),
.sk-stagger > .sk-notif:nth-child(2),
.sk-stagger > .sk-timeline:nth-child(2),
.sk-stagger > .sk-project:nth-child(2),
.sk-stagger > .sk-widget:nth-child(2),
.sk-stagger > .sk-service-card:nth-child(2),
.sk-stagger > .sk-order-card:nth-child(2),
.sk-stagger > .sk-admin-stat:nth-child(2),
.sk-stagger > .sk-admin-tr:nth-child(2),
.sk-stagger > .sk-result-card:nth-child(2) { animation-delay: 0.06s; }
.sk-stagger > .sk-shimmer:nth-child(3),
.sk-stagger > .sk-stat:nth-child(3),
.sk-stagger > .sk-row:nth-child(3),
.sk-stagger > .sk-avatar-row:nth-child(3),
.sk-stagger > .sk-notif:nth-child(3),
.sk-stagger > .sk-timeline:nth-child(3),
.sk-stagger > .sk-project:nth-child(3),
.sk-stagger > .sk-widget:nth-child(3),
.sk-stagger > .sk-service-card:nth-child(3),
.sk-stagger > .sk-order-card:nth-child(3),
.sk-stagger > .sk-admin-stat:nth-child(3),
.sk-stagger > .sk-admin-tr:nth-child(3),
.sk-stagger > .sk-result-card:nth-child(3) { animation-delay: 0.1s; }
.sk-stagger > .sk-shimmer:nth-child(4),
.sk-stagger > .sk-stat:nth-child(4),
.sk-stagger > .sk-row:nth-child(4),
.sk-stagger > .sk-avatar-row:nth-child(4),
.sk-stagger > .sk-notif:nth-child(4),
.sk-stagger > .sk-timeline:nth-child(4),
.sk-stagger > .sk-project:nth-child(4),
.sk-stagger > .sk-widget:nth-child(4),
.sk-stagger > .sk-service-card:nth-child(4),
.sk-stagger > .sk-order-card:nth-child(4),
.sk-stagger > .sk-admin-stat:nth-child(4),
.sk-stagger > .sk-admin-tr:nth-child(4),
.sk-stagger > .sk-result-card:nth-child(4) { animation-delay: 0.14s; }
.sk-stagger > .sk-shimmer:nth-child(5),
.sk-stagger > .sk-stat:nth-child(5),
.sk-stagger > .sk-row:nth-child(5),
.sk-stagger > .sk-avatar-row:nth-child(5),
.sk-stagger > .sk-notif:nth-child(5),
.sk-stagger > .sk-timeline:nth-child(5),
.sk-stagger > .sk-project:nth-child(5),
.sk-stagger > .sk-widget:nth-child(5),
.sk-stagger > .sk-service-card:nth-child(5),
.sk-stagger > .sk-order-card:nth-child(5),
.sk-stagger > .sk-admin-stat:nth-child(5),
.sk-stagger > .sk-admin-tr:nth-child(5),
.sk-stagger > .sk-result-card:nth-child(5) { animation-delay: 0.18s; }

@keyframes skFadeIn {
  to { opacity: 1; }
}

/* ─── Lazy load transition ─── */
.lazy-fade-in {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s cubic-bezier(0.4,0,0.2,1),
              transform 0.4s cubic-bezier(0.4,0,0.2,1);
}

.lazy-fade-in.lazy-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Background lazy load ─── */
[data-lazy-bg] {
  background-image: none !important;
}

[data-lazy-bg].lazy-bg-loaded {
  background-image: var(--lazy-bg-url);
}

/* ─── Content visibility for below-fold sections ─── */
.lazy-section {
  content-visibility: auto;
  contain-intrinsic-size: 500px;
  contain: layout style paint;
}

.lazy-section--small {
  contain-intrinsic-size: 300px;
}

.lazy-section--large {
  contain-intrinsic-size: 800px;
}

.lazy-section--xl {
  contain-intrinsic-size: 1200px;
}

/* ─── Reduce motion for animations ─── */
@media (prefers-reduced-motion: reduce) {
  .skeleton-base,
  .sk-shimmer,
  .sk-stat-icon, .sk-stat-value, .sk-stat-label, .sk-stat-change,
  .sk-row-icon, .sk-row-line, .sk-row-line-sm, .sk-row-end,
  .sk-avatar, .sk-avatar-name, .sk-avatar-preview, .sk-avatar-time,
  .sk-project-line,
  .sk-notif-icon, .sk-notif-title, .sk-notif-msg, .sk-notif-time,
  .sk-timeline-dot, .sk-timeline-title, .sk-timeline-desc, .sk-timeline-time,
  .sk-profile-avatar, .sk-profile-name, .sk-profile-email, .sk-profile-joined,
  .sk-service-img, .sk-service-icon, .sk-service-line,
  .sk-admin-stat-icon, .sk-admin-stat-value, .sk-admin-stat-label,
  .sk-admin-td,
  .sk-order-icon, .sk-order-name, .sk-order-meta, .sk-order-badge, .sk-order-bar, .sk-order-pct,
  .sk-widget-title, .sk-widget-action,
  .sk-result-img, .sk-result-tag, .sk-result-title, .sk-result-desc, .sk-result-desc-sm, .sk-result-service-tag,
  .sk-shell-header, .sk-shell-logo, .sk-shell-nav-item, .sk-shell-brand, .sk-shell-title, .sk-shell-desc, .sk-shell-text,
  .sk-shell-dot {
    animation: none !important;
    opacity: 0.08;
  }
  .sk-stagger > .sk-shimmer,
  .sk-stagger > .sk-stat,
  .sk-stagger > .sk-row,
  .sk-stagger > .sk-avatar-row,
  .sk-stagger > .sk-notif,
  .sk-stagger > .sk-timeline,
  .sk-stagger > .sk-project,
  .sk-stagger > .sk-widget,
  .sk-stagger > .sk-service-card,
  .sk-stagger > .sk-order-card,
  .sk-stagger > .sk-admin-stat,
  .sk-stagger > .sk-admin-tr,
  .sk-stagger > .sk-result-card {
    opacity: 0.08;
    animation: none !important;
  }
}

/* ─── Mobile performance enhancements ─── */
@media (max-width: 768px) {
  .lazy-section {
    contain-intrinsic-size: 400px;
  }

  .lazy-section--large {
    contain-intrinsic-size: 600px;
  }

  .lazy-section--xl {
    contain-intrinsic-size: 800px;
  }

  /* Disable expensive backdrop-filter on mobile for performance */
  .glass-card,
  .float-card-body,
  .float-pill,
  .contact-card,
  .np-card,
  .sp-testimonial-card,
  .sp-showcase-result,
  .sp-hero-mockup,
  .process-card,
  .pricing-card {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }
}

/* ─── Print optimization ─── */
@media print {
  .lazy-section {
    content-visibility: visible !important;
    contain: none !important;
  }

  [data-lazy-bg] {
    background-image: var(--lazy-bg-url) !important;
  }
}