/* ============================================
   EMKB PORTFOLIO — SUPER ANIMATIONS
   ============================================ */

/* ── Imports ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── Custom scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #0f0f13; }
::-webkit-scrollbar-thumb { background: linear-gradient(#667eea, #ff6b6b); border-radius: 3px; }

/* ── Page load fade in ── */
body { animation: pageFadeIn 0.6s ease both; }
@keyframes pageFadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ── Animated gradient background on body ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: linear-gradient(125deg, #667eea22, #764ba222, #ff6b6b11, #667eea22);
  background-size: 400% 400%;
  animation: gradientShift 12s ease infinite;
  pointer-events: none;
  z-index: -1;
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ── Header slide down ── */
header { animation: headerSlideDown 0.7s cubic-bezier(0.22,1,0.36,1) both; }
@keyframes headerSlideDown { from { transform: translateY(-100%); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ── Logo pulse ── */
.logo {
  animation: logoPulse 3s ease-in-out infinite;
  cursor: pointer;
}
@keyframes logoPulse {
  0%, 100% { text-shadow: 0 0 8px rgba(255,255,255,0.4); }
  50%       { text-shadow: 0 0 20px rgba(255,107,107,0.9), 0 0 40px rgba(255,107,107,0.4); }
}

/* ── Nav links animated underline ── */
.nav-links a {
  position: relative;
  padding-bottom: 4px;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  width: 0; height: 2px;
  background: #ff6b6b;
  border-radius: 2px;
  transition: width 0.3s ease, left 0.3s ease;
}
.nav-links a:hover::after { width: 100%; left: 0; }

/* ── Hero typing cursor ── */
.typing-cursor::after {
  content: '|';
  animation: blink 0.8s step-end infinite;
  color: #ff6b6b;
  font-weight: 300;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* ── Hero content stagger ── */
.hero-content h1 {
  animation: heroH1 1s cubic-bezier(0.22,1,0.36,1) both;
}
.hero-content > p:first-of-type {
  animation: heroP1 1s cubic-bezier(0.22,1,0.36,1) 0.2s both;
}
.hero-content > p:last-of-type {
  animation: heroP1 1s cubic-bezier(0.22,1,0.36,1) 0.35s both;
}
.hero-content .cta {
  animation: heroCta 1s cubic-bezier(0.22,1,0.36,1) 0.5s both;
}
@keyframes heroH1 { from { opacity:0; transform: translateY(60px) scale(0.95); } to { opacity:1; transform: translateY(0) scale(1); } }
@keyframes heroP1 { from { opacity:0; transform: translateY(40px); } to { opacity:1; transform: translateY(0); } }
@keyframes heroCta { from { opacity:0; transform: translateY(30px) scale(0.9); } to { opacity:1; transform: translateY(0) scale(1); } }

/* ── Hero background animated particles (CSS only) ── */
.hero { position: relative; overflow: hidden; }
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.15) 1px, transparent 1px),
    radial-gradient(circle, rgba(255,107,107,0.1) 1px, transparent 1px);
  background-size: 60px 60px, 90px 90px;
  background-position: 0 0, 30px 30px;
  animation: particlesDrift 20s linear infinite;
  pointer-events: none;
}
@keyframes particlesDrift { from { transform: translateY(0); } to { transform: translateY(-60px); } }

/* ── CTA button shine sweep ── */
.cta {
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.35), transparent);
  animation: shineSweep 2.5s ease-in-out infinite;
}
@keyframes shineSweep { 0%,100% { left: -100%; } 50% { left: 150%; } }

/* ── Floating shapes behind sections ── */
.section { position: relative; }
.section::before {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(102,126,234,0.08), transparent 70%);
  top: -80px; right: -80px;
  animation: floatBlob 8s ease-in-out infinite;
  pointer-events: none;
}
@keyframes floatBlob {
  0%,100% { transform: translate(0,0) scale(1); }
  33%      { transform: translate(-20px,15px) scale(1.05); }
  66%      { transform: translate(15px,-10px) scale(0.95); }
}

/* ── Section title animated underline grow ── */
.section-title {
  animation: titleReveal 0.8s ease both;
}
@keyframes titleReveal { from { opacity:0; letter-spacing: -4px; } to { opacity:1; letter-spacing: normal; } }
.section-title::after {
  animation: underlineGrow 0.8s cubic-bezier(0.22,1,0.36,1) 0.4s both;
  transform-origin: center;
}
@keyframes underlineGrow { from { width: 0; opacity:0; } to { width: 80px; opacity:1; } }

/* ── Project cards ── */
.project-card {
  transition: transform 0.4s cubic-bezier(0.22,1,0.36,1), box-shadow 0.4s ease !important;
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(102,126,234,0.05), rgba(255,107,107,0.05));
  opacity: 0;
  transition: opacity 0.4s;
}
.project-card:hover::before { opacity: 1; }
.project-card:hover {
  transform: translateY(-14px) scale(1.02) !important;
  box-shadow: 0 30px 70px rgba(102,126,234,0.25) !important;
}

/* ── Project image icon bounce ── */
.project-image i {
  transition: transform 0.4s cubic-bezier(0.22,1,0.36,1);
  display: inline-block;
}
.project-card:hover .project-image i {
  transform: scale(1.3) rotate(-8deg);
}

/* ── Skill items ── */
.skill-item {
  transition: transform 0.4s cubic-bezier(0.22,1,0.36,1), box-shadow 0.4s ease !important;
  position: relative;
  overflow: hidden;
}
.skill-item::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 3px;
  background: linear-gradient(90deg, #667eea, #ff6b6b);
  transition: width 0.4s ease;
}
.skill-item:hover::after { width: 100%; }
.skill-item:hover {
  transform: translateY(-12px) scale(1.03) !important;
  box-shadow: 0 25px 60px rgba(102,126,234,0.2) !important;
}

/* ── Skill icon spin on hover ── */
.skill-icon {
  transition: transform 0.5s cubic-bezier(0.22,1,0.36,1);
  display: block;
}
.skill-item:hover .skill-icon { transform: rotateY(360deg); }

/* ── Stack cards ── */
.stack-card {
  transition: transform 0.4s cubic-bezier(0.22,1,0.36,1), box-shadow 0.4s ease !important;
  position: relative;
  overflow: hidden;
}
.stack-card::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: conic-gradient(transparent 0deg, rgba(102,126,234,0.06) 60deg, transparent 120deg);
  animation: stackRotate 6s linear infinite;
  pointer-events: none;
}
@keyframes stackRotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.stack-card:hover {
  transform: translateY(-8px) !important;
  box-shadow: 0 25px 60px rgba(0,0,0,0.15) !important;
}

/* ── Tech tags pop ── */
.tech-tag, .sidebar-tags span {
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
  cursor: default;
}
.tech-tag:hover, .sidebar-tags span:hover {
  transform: scale(1.12) translateY(-2px);
  background: linear-gradient(135deg, #667eea, #764ba2) !important;
  color: white !important;
}

/* ── Contact form inputs ── */
.form-group input, .form-group textarea {
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.2s !important;
}
.form-group input:focus, .form-group textarea:focus {
  transform: scale(1.01);
  box-shadow: 0 0 0 4px rgba(102,126,234,0.15) !important;
}

/* ── Footer social icons ── */
.social-links a, .footer-links a {
  display: inline-block;
  transition: transform 0.3s cubic-bezier(0.22,1,0.36,1), color 0.3s !important;
}
.social-links a:hover, .footer-links a:hover {
  transform: translateY(-6px) scale(1.2) rotate(-5deg) !important;
  color: #ff6b6b !important;
}

/* ── Scroll reveal classes (applied via JS) ── */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1), transform 0.7s cubic-bezier(0.22,1,0.36,1);
}
.reveal.from-left  { transform: translateX(-60px); }
.reveal.from-right { transform: translateX(60px); }
.reveal.from-scale { transform: scale(0.85); }
.reveal.visible {
  opacity: 1;
  transform: translate(0) scale(1);
}

/* ── Stagger delays for grids ── */
.reveal:nth-child(1) { transition-delay: 0s; }
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal:nth-child(5) { transition-delay: 0.4s; }
.reveal:nth-child(6) { transition-delay: 0.5s; }

/* ── Glowing badge ── */
.badge, span[style*="#28a745"] {
  animation: badgeGlow 2.5s ease-in-out infinite !important;
}
@keyframes badgeGlow {
  0%,100% { box-shadow: 0 0 6px rgba(40,167,69,0.4); }
  50%      { box-shadow: 0 0 16px rgba(40,167,69,0.8), 0 0 30px rgba(40,167,69,0.3); }
}

/* ── Page hero animated gradient ── */
.page-hero, .project-hero {
  background-size: 200% 200% !important;
  animation: heroGradientShift 8s ease infinite !important;
}
@keyframes heroGradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ── Card content slide up on hover ── */
.project-info { transition: transform 0.3s ease; }
.project-card:hover .project-info { transform: translateY(-4px); }

/* ── About image float ── */
.about-img img {
  animation: imgFloat 5s ease-in-out infinite;
}
@keyframes imgFloat {
  0%,100% { transform: translateY(0) rotate(0deg); box-shadow: 0 20px 60px rgba(0,0,0,0.2); }
  50%      { transform: translateY(-12px) rotate(1deg); box-shadow: 0 35px 80px rgba(102,126,234,0.3); }
}

/* ── Btn ripple ── */
.btn, .btn-primary, .btn-secondary, .hero-button {
  position: relative;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.22,1,0.36,1), box-shadow 0.3s ease !important;
}
.btn:hover, .btn-primary:hover, .hero-button:hover {
  transform: translateY(-4px) scale(1.04) !important;
}
.btn::after, .btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.15);
  opacity: 0;
  transition: opacity 0.3s;
}
.btn:hover::after, .btn-primary:hover::after { opacity: 1; }

/* ── Animated counter numbers ── */
.hero-stat strong {
  display: inline-block;
  animation: countPop 0.5s cubic-bezier(0.22,1,0.36,1) both;
}
@keyframes countPop { from { transform: scale(0); opacity:0; } to { transform: scale(1); opacity:1; } }

/* ── Sidenav links slide ── */
.sidenav a {
  transform: translateX(-20px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s !important;
}
.sidenav a:hover {
  transform: translateX(8px) !important;
  background: rgba(255,107,107,0.3) !important;
}

/* ── Dark mode toggle pulse ring ── */
#dm-toggle {
  animation: toggleRing 3s ease-in-out infinite !important;
}
@keyframes toggleRing {
  0%,100% { box-shadow: 0 4px 20px rgba(102,126,234,0.4), 0 0 0 0 rgba(102,126,234,0.3); }
  50%      { box-shadow: 0 4px 20px rgba(102,126,234,0.6), 0 0 0 10px rgba(102,126,234,0); }
}

/* ── Preloader ── */
#preloader {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #667eea, #764ba2);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
#preloader.hidden { opacity: 0; visibility: hidden; }
.preloader-inner {
  text-align: center;
  color: white;
}
.preloader-logo {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: 4px;
  animation: preloaderPulse 1s ease-in-out infinite;
}
.preloader-bar {
  width: 200px;
  height: 3px;
  background: rgba(255,255,255,0.2);
  border-radius: 3px;
  margin: 1rem auto 0;
  overflow: hidden;
}
.preloader-bar::after {
  content: '';
  display: block;
  height: 100%;
  background: white;
  border-radius: 3px;
  animation: preloaderBar 1.2s ease-in-out forwards;
}
@keyframes preloaderPulse { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:0.7; transform:scale(0.97); } }
@keyframes preloaderBar   { from { width:0; } to { width:100%; } }

/* ── Tilt effect placeholder (applied via JS) ── */
.tilt { transform-style: preserve-3d; }

/* ── Particle canvas ── */
#particles-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ── Dark mode animation adjustments ── */
body.dark-mode body::before {
  background: linear-gradient(125deg, #667eea11, #764ba211, #ff6b6b08, #667eea11) !important;
}
body.dark-mode .about-img img {
  box-shadow: 0 20px 60px rgba(102,126,234,0.3) !important;
}
body.dark-mode #dm-toggle {
  animation: toggleRingDark 3s ease-in-out infinite !important;
}
@keyframes toggleRingDark {
  0%,100% { box-shadow: 0 4px 20px rgba(253,160,133,0.4), 0 0 0 0 rgba(253,160,133,0.3); }
  50%      { box-shadow: 0 4px 20px rgba(253,160,133,0.6), 0 0 0 10px rgba(253,160,133,0); }
}