/* ===== KEYFRAME ANIMATIONS ===== */

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translate(0, 0); opacity: 0.8; }
  50% { transform: rotate(45deg) translate(5px, 5px); opacity: 0.3; }
}

@keyframes ringRotate {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.4); }
  50% { box-shadow: 0 0 0 5px rgba(74, 222, 128, 0); }
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  20% { transform: scale(1.2); }
  40% { transform: scale(1); }
  60% { transform: scale(1.15); }
  80% { transform: scale(1); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.85); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(108, 99, 255, 0.2); }
  50% { box-shadow: 0 0 40px rgba(108, 99, 255, 0.5), 0 0 60px rgba(0, 212, 255, 0.2); }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ===== HERO ANIMATIONS (immediate, no scroll trigger) ===== */
/* Default: visible. JS akan tambah class 'js-loaded' ke body untuk enable animasi */
.animate-fadeInUp {
  opacity: 1;
}

.js-loaded .animate-fadeInUp {
  opacity: 0;
  animation: fadeInUp 0.7s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.js-loaded .delay-1 { animation-delay: 0.15s; }
.js-loaded .delay-2 { animation-delay: 0.3s; }
.js-loaded .delay-3 { animation-delay: 0.45s; }
.js-loaded .delay-4 { animation-delay: 0.6s; }
.js-loaded .delay-5 { animation-delay: 0.75s; }

/* ===== REVEAL ON SCROLL (Intersection Observer) ===== */
/* Default: visible. JS akan enable animasi setelah halaman siap */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.js-loaded .reveal {
  opacity: 0;
  transform: translateY(40px);
}

.js-loaded .reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.js-loaded .reveal.delay-1 { transition-delay: 0.1s; }
.js-loaded .reveal.delay-2 { transition-delay: 0.2s; }
.js-loaded .reveal.delay-3 { transition-delay: 0.3s; }
.js-loaded .reveal.delay-4 { transition-delay: 0.4s; }

/* ===== AVATAR FLOATING ===== */
.css-avatar {
  animation: float 5s ease-in-out infinite;
}

/* ===== NAVBAR LOGO GLOW ===== */
.nav-logo {
  position: relative;
}

/* ===== HERO NAME GRADIENT ANIMATION ===== */
.hero-name {
  background-size: 200% auto;
  animation: gradientShift 5s linear infinite;
}

/* ===== CARD HOVER SHIMMER ===== */
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.04) 50%,
    transparent 100%
  );
  transform: translateX(-100%);
  z-index: 2;
  pointer-events: none;
  border-radius: var(--radius-lg);
  transition: none;
}

.project-card:hover::before {
  animation: shimmer 0.7s ease forwards;
}

/* ===== SKILL BAR GLOW AFTER FILL ===== */
.skill-fill.animated {
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.4);
}

/* ===== TIMELINE DOT PULSE ===== */
.timeline-dot {
  animation: glowPulse 2.5s ease-in-out infinite;
}

/* ===== SCROLL PROGRESS GRADIENT ANIMATION ===== */
.scroll-progress {
  background: linear-gradient(90deg, #6c63ff, #00d4ff, #6c63ff);
  background-size: 200% 100%;
  animation: gradientShift 3s linear infinite;
}

/* ===== STAT CARD HOVER ===== */
.stat-card:hover .stat-number,
.stat-card:hover .stat-suffix {
  animation: glowPulse 1s ease-in-out;
}

/* ===== BUTTON RIPPLE ===== */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.15);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
  border-radius: inherit;
}

.btn:hover::after { transform: scaleX(1); }

/* ===== CONTACT ITEM HOVER ===== */
.contact-item {
  position: relative;
  overflow: hidden;
}

.contact-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent-gradient);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s ease;
  border-radius: 0 2px 2px 0;
}

.contact-item:hover::before { transform: scaleY(1); }

/* ===== SECTION HEADER UNDERLINE ===== */
.section-title::after {
  display: none;
}

/* ===== TECH BADGE PULSE ===== */
.tech-badge:nth-child(odd) {
  animation: none;
}

/* ===== BACKGROUND GRADIENT OVERLAY ===== */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 200px;
  background: linear-gradient(to bottom, transparent, var(--bg-primary));
  pointer-events: none;
  z-index: 0;
}

/* ===== GLASS CARD HOVER GLOW ===== */
.glass-card {
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.glass-card:hover {
  border-color: var(--border-color-hover);
  box-shadow: 0 0 30px rgba(108, 99, 255, 0.12);
}

/* ===== SOCIAL LINK ICON SPIN ===== */
.social-link:hover svg,
.social-btn:hover svg {
  transform: rotate(10deg);
  transition: transform 0.2s ease;
}

/* ===== FORM INPUT FOCUS ANIMATION ===== */
.form-group {
  position: relative;
}

.form-group input,
.form-group textarea {
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

/* ===== BACK TO TOP ROTATION ===== */
.back-to-top:hover svg {
  animation: float 0.5s ease;
}

/* ===== HAMBURGER ANIMATION ===== */
.hamburger span {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.2s ease,
              width 0.2s ease;
}

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

  .js-loaded .reveal {
    opacity: 1;
    transform: none;
  }

  .js-loaded .animate-fadeInUp {
    opacity: 1;
    animation: none;
  }

  .hero-name { animation: none; }
  .css-avatar { animation: none; }
  .scroll-progress { animation: none; }
}