/* ========================================
   GENERAL ANIMATIONS
======================================== */

/* Float animation (shared) */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
}

/* Fade in up */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Fade in left */
@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Fade in right */
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Scale in */
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

/* Reveal animation classes */
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-left { opacity: 0; transform: translateX(-40px); transition: all 0.8s ease; }
.reveal-left.visible { opacity: 1; transform: translateX(0); }

.reveal-right { opacity: 0; transform: translateX(40px); transition: all 0.8s ease; }
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* Stagger children */
.stagger-children > * { opacity: 0; transform: translateY(20px); transition: all 0.5s ease; }
.stagger-children.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0.1s; }
.stagger-children.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.2s; }
.stagger-children.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.3s; }
.stagger-children.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.4s; }
.stagger-children.visible > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.5s; }
.stagger-children.visible > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.6s; }

/* Neon Text Pulse */
@keyframes neonPulse {
  0%, 100% { text-shadow: 0 0 5px var(--cyan), 0 0 10px var(--cyan); }
  50% { text-shadow: 0 0 20px var(--cyan), 0 0 40px var(--cyan), 0 0 80px var(--cyan); }
}

/* Spinning loader */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Cursor blink */
@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}
.cursor {
  display: inline-block;
  width: 2px; height: 1em;
  background: var(--cyan);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: cursorBlink 0.8s steps(1) infinite;
}

/* Page load animation */
.hero-text {
  animation: fadeInLeft 1s ease 0.3s both;
}
.robot-container {
  animation: fadeInRight 1s ease 0.5s both;
}

/* Section entrance with delays */
[data-aos="fade-up"] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-aos="fade-up"].aos-animate {
  opacity: 1;
  transform: translateY(0);
}
[data-aos="fade-right"] {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-aos="fade-right"].aos-animate {
  opacity: 1;
  transform: translateX(0);
}
[data-aos-delay="100"] { transition-delay: 0.1s; }
[data-aos-delay="150"] { transition-delay: 0.15s; }
[data-aos-delay="200"] { transition-delay: 0.2s; }
[data-aos-delay="250"] { transition-delay: 0.25s; }
[data-aos-delay="300"] { transition-delay: 0.3s; }

/* Grid background pattern for dark sections */
.skills-section::before,
.projects-section::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,245,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

/* Hover glow effect for interactive elements */
.hover-glow {
  transition: box-shadow 0.3s, transform 0.3s;
}
.hover-glow:hover {
  box-shadow: var(--glow-cyan);
  transform: translateY(-3px);
}

/* Cyber corner decoration */
.cyber-corner {
  position: relative;
}
.cyber-corner::before,
.cyber-corner::after {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  border-color: var(--cyan);
  border-style: solid;
}
.cyber-corner::before { top: -2px; left: -2px; border-width: 2px 0 0 2px; }
.cyber-corner::after { bottom: -2px; right: -2px; border-width: 0 2px 2px 0; }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 60px; left: 0; right: 0;
  background: rgba(5, 10, 19, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem;
  z-index: 999;
  flex-direction: column;
  gap: 1rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: var(--text2);
  text-decoration: none;
  font-family: 'Orbitron', monospace;
  font-size: 0.9rem;
  letter-spacing: 2px;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.3s;
}
.mobile-menu a:hover { color: var(--cyan); }