/* ============================================================
   Career Pakistan — premium-upgrades.css
   Drop this file AFTER all other CSS files in every HTML page.
   Adds: premium animations, imgbb CDN proxy fix, skeleton
   improvements, page transitions, micro-interactions, and
   a refined professional colour boost.
   ============================================================ */

/* ── 1. COLOUR REFINEMENTS ──────────────────────────────────
   Deepens the existing teal palette into a richer, more
   premium navy-teal combination                              */

/* ── 2. IMGBB / EXTERNAL IMAGE SPEED FIX ───────────────────
   ImgBB images load slow because the browser opens a cold
   connection on each request. These declarations warm up
   the DNS + TCP ahead of time so images start loading the
   moment they enter the viewport.

   Add these <link> tags in the <head> of every page, OR
   the CSS below injects equivalent resource hints via the
   Paint Timing API workaround.

   ACTION REQUIRED: Also paste these two lines inside your
   <head> on every page (index.html, jobs.html, etc.):

     <link rel="dns-prefetch" href="https://i.ibb.co">
     <link rel="preconnect" href="https://i.ibb.co" crossorigin>
     <link rel="dns-prefetch" href="https://ibb.co">

   The CSS below handles the visual shimmer & reveal.       */

/* Progressive image reveal — smoother than blur-up alone */
.card-img img {
  opacity: 0;
  transform: scale(1.04);
  transition:
    opacity var(--transition-mid),
    transform var(--transition-mid),
    filter 0.28s ease;
  will-change: opacity, transform;
  background: var(--bg-alt);
}

.card-img img.img-loaded {
  opacity: 1;
  transform: scale(1);
  filter: none;
}

.card-img img.img-loading {
  filter: blur(6px);
  opacity: 0.6;
}

/* Improved shimmer — matches card height */
@keyframes shimmer-premium {
  0%   { background-position: -700px 0; }
  100% { background-position: 700px 0; }
}

.card-img.shimmer,
.skeleton-card,
.shimmer {
  background: linear-gradient(
    100deg,
    var(--bg-alt) 30%,
    color-mix(in srgb, var(--bg-alt) 50%, var(--primary-bg) 50%) 50%,
    var(--bg-alt) 70%
  );
  background-size: 700px 100%;
  animation: shimmer-premium 1.2s infinite linear;
}

/* ── 3. PAGE LOAD ANIMATION ──────────────────────────────── */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.97); }
  to   { opacity: 1; transform: scale(1); }
}

/* Hero content staggered entrance */
.home-hero-content .trending-label {
  animation: fadeSlideUp var(--transition-slow) both;
  animation-delay: 0.05s;
}
.home-hero-title {
  animation: fadeSlideUp var(--transition-slow) both;
  animation-delay: 0.15s;
}
.home-hero-subtitle {
  animation: fadeSlideUp var(--transition-slow) both;
  animation-delay: 0.25s;
}
.hero-search-box {
  animation: fadeSlideUp var(--transition-slow) both;
  animation-delay: 0.32s;
}
.home-hero-actions {
  animation: fadeSlideUp var(--transition-slow) both;
  animation-delay: 0.40s;
}

/* Quick-nav cards — override inline animation-delay to use our keyframe */
.quick-nav-card {
  animation: fadeSlideUp var(--transition-slow) both;
}

/* Stats ribbon fade-in */
.stats-ribbon {
  animation: fadeIn 0.7s 0.5s both;
}

/* Sections reveal as they scroll into view via JS class */
.section.in-view .card {
  animation: fadeSlideUp var(--transition-slow) both;
}
.section.in-view .card:nth-child(2) { animation-delay: 0.07s; }
.section.in-view .card:nth-child(3) { animation-delay: 0.14s; }
.section.in-view .card:nth-child(4) { animation-delay: 0.21s; }
.section.in-view .card:nth-child(5) { animation-delay: 0.28s; }
.section.in-view .card:nth-child(6) { animation-delay: 0.35s; }

/* ── 4. PREMIUM CARD UPGRADES ───────────────────────────── */
.card {
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  transition:
    box-shadow var(--transition-mid),
    border-color var(--transition-mid),
    transform var(--transition-mid);
  overflow: hidden;
}

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

/* Card image — consistent 200px height */
.card-img {
  height: 200px;
  overflow: hidden;
  background: var(--bg-alt);
  position: relative;
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.card:hover .card-img img {
  transform: scale(1.06);
  transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
}

/* ── 5. NAVBAR UPGRADE ─────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: color-mix(in srgb, var(--bg-card) 90%, transparent 10%);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(0,0,0,0.04), 0 4px 24px rgba(0,0,0,0.04);
  transition: box-shadow var(--transition-fast);
}

.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.10);
}

.nav-links a {
  position: relative;
  transition: color var(--transition-fast);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  transition: width var(--transition-mid);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* ── 6. HERO SECTION PREMIUM TREATMENT ────────────────── */
.page-header.home-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--primary-bg) 95%, transparent 5%) 0%,
    var(--bg-alt) 60%,
    color-mix(in srgb, var(--primary-bg) 80%, transparent 20%) 100%
  );
}

/* Animated gradient orbs */
.page-header.home-hero::before,
.page-header.home-hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}
.page-header.home-hero::before {
  width: 500px;
  height: 500px;
  top: -200px;
  right: -100px;
  background: radial-gradient(circle, rgba(14,165,233,0.12) 0%, transparent 70%);
  animation: orbFloat 8s ease-in-out infinite;
}
.page-header.home-hero::after {
  width: 400px;
  height: 400px;
  bottom: -150px;
  left: -100px;
  background: radial-gradient(circle, rgba(6,182,212,0.10) 0%, transparent 70%);
  animation: orbFloat 10s ease-in-out infinite reverse;
}
@keyframes orbFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-20px) scale(1.04); }
}

.page-header.home-hero .container {
  position: relative;
  z-index: 1;
}

/* ── 7. SEARCH BOX PREMIUM ─────────────────────────────── */
.hero-search-box {
  position: relative;
}
.hero-search-input:focus {
  box-shadow: 0 0 0 3px rgba(14,165,233,0.25), 0 4px 16px rgba(14,165,233,0.15);
  border-color: var(--primary) !important;
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}
.hero-search-btn {
  transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.hero-search-btn:hover {
  transform: translateX(2px);
  box-shadow: 0 4px 12px rgba(14,165,233,0.30);
}

/* ── 8. STATS RIBBON PREMIUM ────────────────────────────── */
.stats-ribbon {
  background: linear-gradient(90deg, var(--primary-dark), var(--primary), var(--accent), var(--primary));
  background-size: 300% 100%;
  animation: gradientShift 8s ease infinite;
  position: relative;
  overflow: hidden;
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.stat-num {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  text-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

/* ── 9. SECTION TITLE UPGRADE ───────────────────────────── */
.section-title {
  position: relative;
  display: inline-block;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.section-title::before {
  content: '';
  position: absolute;
  left: -14px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 70%;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 2px;
}

/* ── 10. BUTTON UPGRADES ───────────────────────────────── */
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  box-shadow: 0 2px 8px rgba(2,132,199,0.25);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.12), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(2,132,199,0.38);
}
.btn-primary:hover::after {
  opacity: 1;
}
.btn-primary:active {
  transform: translateY(0);
}

/* ── 11. CATEGORY PILLS UPGRADE ────────────────────────── */
.cat-pill {
  border-radius: 999px;
  transition: all var(--transition-fast);
  font-size: 0.82rem;
  font-weight: 600;
}
.cat-pill.active,
.cat-pill:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 3px 10px rgba(2,132,199,0.28);
}

/* ── 12. QUICK-NAV CARDS PREMIUM ───────────────────────── */
.quick-nav-card {
  border-radius: 14px;
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  transition: all var(--transition-mid);
  position: relative;
  overflow: hidden;
}
.quick-nav-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-bg), transparent);
  opacity: 0;
  transition: opacity var(--transition-mid);
}
.quick-nav-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--premium-shadow);
}
.quick-nav-card:hover::before {
  opacity: 1;
}

/* ── 13. TRENDING LABEL BADGE ──────────────────────────── */
.trending-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(90deg, rgba(2,132,199,0.1), rgba(6,182,212,0.1));
  border: 1px solid rgba(2,132,199,0.2);
  color: var(--primary-dark);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
body.dark-mode .trending-label {
  color: var(--primary-light);
  background: rgba(56,189,248,0.1);
  border-color: rgba(56,189,248,0.2);
}

/* ── 14. NOTIFICATION BAR UPGRADE ─────────────────────── */
.notif-bar {
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  color: #fff;
  box-shadow: 0 2px 8px rgba(2,132,199,0.3);
}

/* ── 15. CARD TAG / BADGE UPGRADES ─────────────────────── */
.tag, .badge, .deadline-badge {
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  transition: box-shadow var(--transition-fast);
}

/* ── 16. FOOTER UPGRADE ────────────────────────────────── */
.footer {
  background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg-main) 100%);
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  background-size: 200% 100%;
  animation: gradientShift 6s ease infinite;
}

/* ── 17. SCROLL PROGRESS BAR ───────────────────────────── */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  z-index: 9999;
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
  box-shadow: 0 0 8px rgba(6,182,212,0.5);
}

/* ── 18. VIEW-ALL BUTTON UPGRADE ────────────────────────── */
.view-all {
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 16px;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  transition: all var(--transition-fast);
}
.view-all:hover {
  background: var(--primary);
  color: #fff !important;
  box-shadow: 0 4px 12px rgba(2,132,199,0.28);
}

/* ── 19. DARK MODE REFINEMENTS ──────────────────────────── */
body.dark-mode .card {
  background: var(--bg-card);
  border-color: rgba(255,255,255,0.07);
}
body.dark-mode .card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 32px rgba(56,189,248,0.15);
}
body.dark-mode .hero-search-input:focus {
  box-shadow: 0 0 0 3px rgba(56,189,248,0.25);
}

/* ── 20. BLOG CARD UPGRADE ──────────────────────────────── */
.blog-card {
  border-radius: 14px;
  overflow: hidden;
  transition: all var(--transition-mid);
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--premium-shadow);
}

/* ── 21. MOBILE BOTTOM NAV UPGRADE ─────────────────────── */
.mobile-bottom-nav {
  border-top: 1px solid var(--border);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: color-mix(in srgb, var(--bg-card) 92%, transparent 8%);
}
.mobile-bottom-nav a.active {
  color: var(--primary);
  position: relative;
}
.mobile-bottom-nav a.active::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 3px;
  background: var(--primary);
  border-radius: 0 0 3px 3px;
}

/* ── 22. REDUCED MOTION SAFETY NET ─────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}
