/* ═══════════════════════════════════════════════════════════════════════════
   ANIMATIONS — Rich scroll reveals, particles, micro-interactions, FX
   ═══════════════════════════════════════════════════════════════════════════ */

/* ═══════════ MOBILE MENU ═══════════ */
@keyframes menuFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes menuItemIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ═══════════ SCROLL PROGRESS BAR ═══════════ */
.scroll-progress {
  position: fixed; top: 0; left: 0; width: 0%; height: 3px;
  background: var(--accent-gradient);
  z-index: 10000; transition: width 0.1s linear;
  box-shadow: 0 0 10px var(--neon-green), 0 0 20px rgba(34,197,94,0.15);
}

/* ═══════════ REVEAL ON SCROLL ═══════════ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  filter: blur(4px);
}
.reveal.visible { opacity: 1; transform: translateY(0); filter: blur(0); }

/* Directional reveals */
.reveal-left  { opacity: 0; transform: translateX(-60px); filter: blur(4px);
  transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1), filter 0.8s cubic-bezier(0.16,1,0.3,1); }
.reveal-right { opacity: 0; transform: translateX(60px);  filter: blur(4px);
  transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1), filter 0.8s cubic-bezier(0.16,1,0.3,1); }
.reveal-scale  { opacity: 0; transform: scale(0.85);      filter: blur(4px);
  transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1), filter 0.8s cubic-bezier(0.16,1,0.3,1); }
.reveal-left.visible, .reveal-right.visible, .reveal-scale.visible {
  opacity: 1; transform: none; filter: blur(0);
}

/* Stagger siblings */
.reveal:nth-child(1) { transition-delay: 0ms; }
.reveal:nth-child(2) { transition-delay: 100ms; }
.reveal:nth-child(3) { transition-delay: 200ms; }
.reveal:nth-child(4) { transition-delay: 300ms; }
.reveal:nth-child(5) { transition-delay: 400ms; }
.reveal:nth-child(6) { transition-delay: 500ms; }
.reveal:nth-child(7) { transition-delay: 600ms; }
.reveal:nth-child(8) { transition-delay: 700ms; }

/* ═══════════ HERO ENTRANCE ═══════════ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUpIn 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.delay-1 { animation-delay: 200ms; }
.delay-2 { animation-delay: 400ms; }
.delay-3 { animation-delay: 600ms; }
.delay-4 { animation-delay: 800ms; }
.delay-5 { animation-delay: 1000ms; }
.delay-6 { animation-delay: 1200ms; }

@keyframes fadeUpIn { to { opacity: 1; transform: translateY(0); } }

/* ═══════════ GRADIENT TEXT SHIMMER ═══════════ */
.gradient-text {
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary), var(--accent-primary));
  background-size: 300% 100%;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientShimmer 4s ease infinite;
}
@keyframes gradientShimmer {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ═══════════ TYPING CURSOR ═══════════ */
.typing-cursor {
  display: inline-block;
  width: 2px; height: 1.1em;
  background: var(--accent-primary);
  margin-left: 4px;
  animation: blink-cursor 0.8s step-end infinite;
  vertical-align: text-bottom;
}
@keyframes blink-cursor { 50% { opacity: 0; } }

/* ═══════════ PARTICLES ═══════════ */
.particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  animation: floatParticle linear infinite;
}
@keyframes floatParticle {
  0%   { transform: translateY(0) translateX(0) scale(1); opacity: 0; }
  10%  { opacity: 0.6; }
  50%  { transform: translateY(-50vh) translateX(30px) scale(0.8); }
  90%  { opacity: 0.6; }
  100% { transform: translateY(-100vh) translateX(-20px) scale(0.3); opacity: 0; }
}

/* ═══════════ FLOATING GLOW ORBS ═══════════ */
.hero__glow-orb {
  animation: orbFloat 12s ease-in-out infinite alternate;
}
.hero__glow-orb--2 { animation-delay: -6s; animation-duration: 15s; }

@keyframes orbFloat {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(30px, -20px) scale(1.05); }
  66%  { transform: translate(-20px, 15px) scale(0.95); }
  100% { transform: translate(10px, -10px) scale(1.02); }
}

/* ═══════════ CARD HOVER — 3D TILT + GLOW ═══════════ */
.project-card,
.skill-group,
.philosophy__card,
.blog-card {
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              box-shadow 0.4s ease,
              border-color 0.4s ease;
}

.project-card:hover,
.skill-group:hover,
.philosophy__card:hover,
.blog-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3),
              0 0 30px rgba(34, 197, 94, 0.08);
  border-color: var(--accent-primary);
}

/* Neon border glow on hover */
.project-card::after,
.skill-group::after,
.philosophy__card::after,
.blog-card::after {
  content: '';
  position: absolute; inset: -1px;
  border-radius: inherit;
  background: var(--accent-gradient);
  opacity: 0;
  z-index: -1;
  transition: opacity 0.4s ease;
  filter: blur(8px);
}
.project-card:hover::after,
.skill-group:hover::after,
.philosophy__card:hover::after,
.blog-card:hover::after {
  opacity: 0.15;
}

/* ═══════════ SKILL TAG ANIMATION ═══════════ */
.skill-tag {
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}
.skill-tag:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 4px 15px rgba(34, 197, 94, 0.2);
}

/* ═══════════ BUTTON RIPPLE EFFECT ═══════════ */
.btn { position: relative; overflow: hidden; }
.btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
  transform: scale(0);
  animation: rippleExpand 0.6s ease-out;
  pointer-events: none;
}
@keyframes rippleExpand { to { transform: scale(4); opacity: 0; } }

/* Button hover glow */
.btn--primary {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(34, 197, 94, 0.35), 0 0 15px rgba(34, 197, 94, 0.2);
}
.btn--outline:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.2);
}

/* ═══════════ TIMELINE DOT PULSE ═══════════ */
.timeline__dot {
  transition: box-shadow 0.4s ease, transform 0.4s ease;
}
.timeline__item:hover .timeline__dot {
  transform: scale(1.3);
  box-shadow: 0 0 0 6px var(--bg-primary), 0 0 20px rgba(34, 197, 94, 0.5), 0 0 40px rgba(34, 197, 94, 0.15);
}

/* Timeline card slide */
.timeline__card {
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              box-shadow 0.4s ease;
}
.timeline__item:hover .timeline__card {
  transform: translateX(8px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

/* ═══════════ CONTACT ICON BOUNCE ═══════════ */
.contact__link-item {
  transition: transform 0.3s ease, color 0.3s ease;
}
.contact__link-item:hover {
  transform: translateX(6px);
  color: var(--accent-primary);
}
.contact__link-item:hover i {
  animation: iconBounce 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
@keyframes iconBounce {
  0%, 100% { transform: scale(1) rotate(0); }
  30% { transform: scale(1.3) rotate(-5deg); }
  60% { transform: scale(0.95) rotate(2deg); }
}

/* ═══════════ CODE WINDOW GLOW ═══════════ */
.code-window {
  transition: transform 0.5s ease, box-shadow 0.5s ease;
}
.code-window:hover {
  transform: translateY(-5px) rotateX(2deg);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4), 0 0 30px rgba(34, 197, 94, 0.1);
}

/* ═══════════ NAV LOGO GLOW ═══════════ */
.navbar__logo::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: var(--accent-gradient);
  opacity: 0;
  z-index: -1;
  filter: blur(10px);
  transition: opacity 0.5s ease;
}
.navbar__logo:hover::before {
  opacity: 0.2;
}

/* Sweeping shine effect */
.navbar__logo::after {
  content: '';
  position: absolute;
  top: 0; left: -100%; bottom: 0;
  width: 50%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
}
.navbar__logo:hover::after {
  left: 200%;
}

/* Persistent subtle glow pulse */
@keyframes logoPulse {
  0%, 100% { box-shadow: 0 0 8px rgba(34, 197, 94, 0.08), 0 0 16px rgba(34, 197, 94, 0.03); }
  50%      { box-shadow: 0 0 15px rgba(34, 197, 94, 0.15), 0 0 30px rgba(34, 197, 94, 0.06); }
}
.page-loaded .navbar__logo {
  animation: logoPulse 3s ease-in-out infinite;
}
.navbar__logo:hover {
  animation: none;
}

/* Logo character bounce on page load */
@keyframes logoCharBounce {
  0%   { transform: translateY(0); }
  40%  { transform: translateY(-6px); }
  60%  { transform: translateY(2px); }
  100% { transform: translateY(0); }
}
.page-loaded .logo-char--t {
  animation: logoCharBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.3s both;
}
.page-loaded .logo-char--d {
  animation: logoCharBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.45s both;
}

/* Logo scrolled state */
.navbar.scrolled .navbar__logo {
  background: rgba(34, 197, 94, 0.07);
  border-color: rgba(34, 197, 94, 0.15);
}

/* ═══════════ NAV LINK UNDERLINE ═══════════ */
.nav-link::after {
  content: '';
  position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
  background: var(--accent-gradient);
  transition: width 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

/* ═══════════ HERO BADGE PULSE ═══════════ */
.pulse-dot {
  animation: pulseDot 2s ease-in-out infinite;
}
@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5); }
  50%      { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}

/* ═══════════ STAT NUMBER GLOW ═══════════ */
.stat__number {
  transition: text-shadow 0.3s ease;
}
.stat:hover .stat__number {
  text-shadow: 0 0 20px rgba(34, 197, 94, 0.4);
}

/* ═══════════ CONTRIBUTION GRID WAVE ═══════════ */
.contribution-cell {
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.contribution-cell:hover {
  transform: scale(2);
  opacity: 1 !important;
  z-index: 2;
}

/* Snake cell eaten pop */
@keyframes cellEaten {
  0%   { transform: scale(1.5); opacity: 0.2; }
  50%  { transform: scale(0.8); }
  100% { transform: scale(1); opacity: 1; }
}

/* Wave pulse after snake finishes */
@keyframes cellWavePulse {
  0%   { transform: scale(1); box-shadow: none; }
  50%  { transform: scale(1.6); box-shadow: 0 0 6px rgba(34, 197, 94, 0.5); }
  100% { transform: scale(1); box-shadow: none; }
}

/* ═══════════ BACK TO TOP ═══════════ */
.back-to-top {
  transition: transform 0.3s ease, opacity 0.3s ease, box-shadow 0.3s ease;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(34, 197, 94, 0.3);
}

/* ═══════════ FOOTER SOCIAL ICONS ═══════════ */
.footer__social a {
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              color 0.3s ease,
              text-shadow 0.3s ease;
}
.footer__social a:hover {
  transform: translateY(-4px) scale(1.15);
  color: var(--accent-primary);
  text-shadow: 0 0 15px rgba(34, 197, 94, 0.4);
}

/* ═══════════ FORM FOCUS GLOW ═══════════ */
.form-group input:focus,
.form-group textarea:focus {
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15), 0 0 15px rgba(34, 197, 94, 0.05);
}

/* ═══════════ ABOUT IMAGE RING ═══════════ */
.about__image-ring {
  animation: ringRotate 20s linear infinite;
}
@keyframes ringRotate {
  to { transform: rotate(360deg); }
}

/* About image float */
.about__image-wrapper {
  animation: aboutFloat 6s ease-in-out infinite;
}
@keyframes aboutFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

/* ═══════════ SECTION TITLE GLOW ON REVEAL ═══════════ */
.section__title {
  transition: text-shadow 0.6s ease;
}
.reveal.visible .section__title {
  text-shadow: 0 0 40px rgba(34, 197, 94, 0.06);
}

/* ═══════════ MOUSE SCROLL INDICATOR ═══════════ */
.mouse__wheel {
  animation: mouseScroll 2s ease-in-out infinite;
}
@keyframes mouseScroll {
  0%   { transform: translateY(0); opacity: 1; }
  50%  { transform: translateY(8px); opacity: 0.3; }
  100% { transform: translateY(0); opacity: 1; }
}

/* ═══════════ GITHUB STAT CARD HOVER ═══════════ */
.github__stat-card {
  transition: transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              background 0.35s ease,
              box-shadow 0.35s ease;
}
.github__stat-card:hover {
  transform: translateY(-6px) scale(1.04);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
}
.github__stat-card:hover i {
  animation: iconPulse 0.6s ease;
}
@keyframes iconPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

/* ═══════════ PROJECT CARD IMAGE ZOOM ═══════════ */
.project-card__placeholder i {
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.project-card:hover .project-card__placeholder i {
  transform: scale(1.15) rotate(-5deg);
}

/* ═══════════ LOADING ENTRANCE ═══════════ */
.page-loaded .navbar { animation: slideDown 0.6s ease forwards; }
@keyframes slideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

/* ═══════════ REDUCED MOTION ═══════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal, .reveal-left, .reveal-right, .reveal-scale { opacity: 1; transform: none; filter: none; }
  .fade-up { opacity: 1; transform: none; }
  .hero__glow-orb { animation: none !important; }
  .scroll-progress { display: none; }
  .detail-reveal { opacity: 1; transform: none; filter: none; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   PROJECT DETAIL ANIMATIONS
   ═══════════════════════════════════════════════════════════════════════════ */

/* Section reveal inside detail */
.detail-reveal {
  opacity: 0;
  transform: translateY(50px);
  filter: blur(6px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.detail-reveal.visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Stagger detail sections */
.detail-reveal:nth-child(1) { transition-delay: 0ms; }
.detail-reveal:nth-child(2) { transition-delay: 80ms; }
.detail-reveal:nth-child(3) { transition-delay: 160ms; }
.detail-reveal:nth-child(4) { transition-delay: 240ms; }
.detail-reveal:nth-child(5) { transition-delay: 320ms; }
.detail-reveal:nth-child(6) { transition-delay: 400ms; }

/* Hero entrance */
.project-detail__hero-content {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s,
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}
.project-detail-overlay.active .project-detail__hero-content {
  opacity: 1;
  transform: translateY(0);
}

/* Icon wrapper entrance */
.project-detail__icon-wrapper {
  opacity: 0;
  transform: scale(0.3) rotate(-15deg);
  transition: opacity 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.35s,
              transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.35s;
}
.project-detail-overlay.active .project-detail__icon-wrapper {
  opacity: 1;
  transform: scale(1) rotate(0);
}

/* Icon floating animation */
@keyframes detailIconFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-6px) rotate(2deg); }
  75% { transform: translateY(4px) rotate(-1deg); }
}
.project-detail-overlay.active .project-detail__icon-wrapper {
  animation: detailIconFloat 4s ease-in-out 1s infinite;
}

/* Stats entrance */
.project-detail__stat {
  opacity: 0;
  transform: translateY(30px) scale(0.9);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}
.project-detail__stat.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.project-detail__stat:nth-child(1) { transition-delay: 0.1s; }
.project-detail__stat:nth-child(2) { transition-delay: 0.2s; }
.project-detail__stat:nth-child(3) { transition-delay: 0.3s; }
.project-detail__stat:nth-child(4) { transition-delay: 0.4s; }

/* Stat hover */
.project-detail__stat:hover {
  border-color: rgba(34, 197, 94, 0.3);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px) scale(1.03);
}

/* Feature card stagger */
.project-detail__feature {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}
.project-detail__feature.visible {
  opacity: 1;
  transform: translateY(0);
}
.project-detail__feature:nth-child(1) { transition-delay: 0.05s; }
.project-detail__feature:nth-child(2) { transition-delay: 0.1s; }
.project-detail__feature:nth-child(3) { transition-delay: 0.15s; }
.project-detail__feature:nth-child(4) { transition-delay: 0.2s; }
.project-detail__feature:nth-child(5) { transition-delay: 0.25s; }
.project-detail__feature:nth-child(6) { transition-delay: 0.3s; }

/* Feature icon pulse on hover */
.project-detail__feature:hover .project-detail__feature-icon {
  animation: featureIconPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes featureIconPop {
  0% { transform: scale(1); }
  40% { transform: scale(1.2) rotate(-5deg); }
  70% { transform: scale(0.95) rotate(2deg); }
  100% { transform: scale(1) rotate(0); }
}

/* Screenshot entrance */
.project-detail__screenshot {
  opacity: 0;
  transform: translateY(40px) scale(0.85);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              box-shadow 0.5s ease,
              border-color 0.3s ease;
}
.project-detail__screenshot.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.project-detail__screenshot:nth-child(1) { transition-delay: 0.05s; }
.project-detail__screenshot:nth-child(2) { transition-delay: 0.12s; }
.project-detail__screenshot:nth-child(3) { transition-delay: 0.19s; }
.project-detail__screenshot:nth-child(4) { transition-delay: 0.26s; }

/* Screenshot icon float */
.project-detail__screenshot:hover .project-detail__screenshot-icon {
  animation: screenshotIconBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes screenshotIconBounce {
  0%, 100% { transform: translateY(0); }
  40% { transform: translateY(-8px); }
  65% { transform: translateY(3px); }
}

/* Tech item entrance */
.project-detail__tech-item {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}
.project-detail__tech-item.visible {
  opacity: 1;
  transform: translateX(0);
}
.project-detail__tech-item:nth-child(1) { transition-delay: 0.05s; }
.project-detail__tech-item:nth-child(2) { transition-delay: 0.1s; }
.project-detail__tech-item:nth-child(3) { transition-delay: 0.15s; }
.project-detail__tech-item:nth-child(4) { transition-delay: 0.2s; }
.project-detail__tech-item:nth-child(5) { transition-delay: 0.25s; }
.project-detail__tech-item:nth-child(6) { transition-delay: 0.3s; }

/* Tech icon spin on hover */
.project-detail__tech-item:hover .project-detail__tech-icon i {
  animation: techIconSpin 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes techIconSpin {
  0% { transform: rotate(0) scale(1); }
  50% { transform: rotate(180deg) scale(1.15); }
  100% { transform: rotate(360deg) scale(1); }
}

/* Challenge card entrance */
.project-detail__challenge {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}
.project-detail__challenge.visible {
  opacity: 1;
  transform: translateX(0);
}
.project-detail__challenge:nth-child(1) { transition-delay: 0.1s; }
.project-detail__challenge:nth-child(2) { transition-delay: 0.2s; }

/* Link button entrance */
.project-detail__link-btn {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              box-shadow 0.3s ease,
              border-color 0.3s ease,
              color 0.3s ease,
              background 0.3s ease;
}
.project-detail__link-btn.visible {
  opacity: 1;
  transform: translateY(0);
}
.project-detail__link-btn:nth-child(1) { transition-delay: 0.05s; }
.project-detail__link-btn:nth-child(2) { transition-delay: 0.12s; }
.project-detail__link-btn:nth-child(3) { transition-delay: 0.19s; }

/* Detail hero glow orb */
.detail-glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  opacity: 0;
  transition: opacity 1s ease 0.3s;
}
.project-detail-overlay.active .detail-glow-orb {
  opacity: 0.12;
  animation: detailOrbFloat 10s ease-in-out infinite alternate;
}
@keyframes detailOrbFloat {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(20px, -15px) scale(1.08); }
  100% { transform: translate(-10px, 10px) scale(0.95); }
}

/* Floating particles in detail hero */
.detail-particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  animation: detailParticleFloat linear infinite;
}
@keyframes detailParticleFloat {
  0%   { transform: translateY(0) rotate(0); opacity: 0; }
  10%  { opacity: 0.5; }
  90%  { opacity: 0.5; }
  100% { transform: translateY(-200px) rotate(180deg); opacity: 0; }
}

/* ═══════════ BLOG DETAIL ANIMATIONS ═══════════ */

/* Blog hero entrance */
.blog-detail__hero-content {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s,
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}
.blog-detail-overlay.active .blog-detail__hero-content {
  opacity: 1;
  transform: translateY(0);
}

/* Blog icon wrapper entrance */
.blog-detail__icon-wrapper {
  opacity: 0;
  transform: scale(0.3) rotate(-15deg);
  transition: opacity 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.35s,
              transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.35s;
}
.blog-detail-overlay.active .blog-detail__icon-wrapper {
  opacity: 1;
  transform: scale(1) rotate(0);
}

/* Blog icon floating animation */
@keyframes blogDetailIconFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-6px) rotate(2deg); }
  75% { transform: translateY(4px) rotate(-1deg); }
}
.blog-detail-overlay.active .blog-detail__icon-wrapper {
  animation: blogDetailIconFloat 4s ease-in-out 1s infinite;
}

/* Blog stats entrance */
.blog-detail__stat {
  opacity: 0;
  transform: translateY(30px) scale(0.9);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}
.blog-detail__stat.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.blog-detail__stat:nth-child(1) { transition-delay: 0.1s; }
.blog-detail__stat:nth-child(2) { transition-delay: 0.2s; }
.blog-detail__stat:nth-child(3) { transition-delay: 0.3s; }

/* Blog stat hover */
.blog-detail__stat:hover {
  border-color: rgba(34, 197, 94, 0.3);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px) scale(1.03);
}

/* Content section entrance */
.blog-detail__content-section {
  opacity: 0;
  transform: translateX(-25px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}
.blog-detail__content-section.visible {
  opacity: 1;
  transform: translateX(0);
}
.blog-detail__content-section:nth-child(1) { transition-delay: 0.05s; }
.blog-detail__content-section:nth-child(2) { transition-delay: 0.1s; }
.blog-detail__content-section:nth-child(3) { transition-delay: 0.15s; }

/* Takeaways list entrance */
.blog-detail__takeaways-list {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1) 0.2s,
              transform 0.5s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}
.blog-detail__takeaways-list.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Takeaway items stagger */
.blog-detail__takeaways-list li {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}
.blog-detail__takeaways-list.visible li {
  opacity: 1;
  transform: translateX(0);
}
.blog-detail__takeaways-list.visible li:nth-child(1) { transition-delay: 0.1s; }
.blog-detail__takeaways-list.visible li:nth-child(2) { transition-delay: 0.18s; }
.blog-detail__takeaways-list.visible li:nth-child(3) { transition-delay: 0.26s; }
.blog-detail__takeaways-list.visible li:nth-child(4) { transition-delay: 0.34s; }

/* Tech tags entrance */
.blog-detail__tech-item {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}
.blog-detail__tech-item.visible {
  opacity: 1;
  transform: translateX(0);
}
.blog-detail__tech-item:nth-child(1) { transition-delay: 0.05s; }
.blog-detail__tech-item:nth-child(2) { transition-delay: 0.1s; }
.blog-detail__tech-item:nth-child(3) { transition-delay: 0.15s; }
.blog-detail__tech-item:nth-child(4) { transition-delay: 0.2s; }

/* Related posts entrance */
.blog-detail__related-card {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}
.blog-detail__related-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.blog-detail__related-card:nth-child(1) { transition-delay: 0.1s; }
.blog-detail__related-card:nth-child(2) { transition-delay: 0.18s; }

/* Action buttons entrance */
.blog-detail__action-btn {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              box-shadow 0.3s ease,
              border-color 0.3s ease,
              color 0.3s ease,
              background 0.3s ease;
}
.blog-detail__action-btn.visible {
  opacity: 1;
  transform: translateY(0);
}
.blog-detail__action-btn:nth-child(1) { transition-delay: 0.1s; }
.blog-detail__action-btn:nth-child(2) { transition-delay: 0.18s; }

/* Blog detail hero glow orb */
.blog-detail-glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  opacity: 0;
  transition: opacity 1s ease 0.3s;
}
.blog-detail-overlay.active .blog-detail-glow-orb {
  opacity: 0.15;
  animation: blogDetailOrbFloat 10s ease-in-out infinite alternate;
}
@keyframes blogDetailOrbFloat {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(20px, -15px) scale(1.08); }
  100% { transform: translate(-10px, 10px) scale(0.95); }
}

/* Floating particles in blog detail hero */
.blog-detail-particle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  animation: blogDetailParticleFloat linear infinite;
}
@keyframes blogDetailParticleFloat {
  0%   { transform: translateY(0) rotate(0); opacity: 0; }
  10%  { opacity: 0.5; }
  90%  { opacity: 0.5; }
  100% { transform: translateY(-200px) rotate(180deg); opacity: 0; }
}