/* ════════════════════════════════════════════════════════════════════════════
   animations.css — Keyframes, scroll reveals, hover effects
   ════════════════════════════════════════════════════════════════════════════ */

/* ── Keyframes ──────────────────────────────────────────────────────────────── */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(32px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.88); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(59,130,246,0.3); }
  50%       { box-shadow: 0 0 40px rgba(59,130,246,0.6), 0 0 80px rgba(59,130,246,0.2); }
}

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

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

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

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

@keyframes terminalType {
  from { max-width: 0; opacity: 0; }
  to   { max-width: 100%; opacity: 1; }
}

@keyframes borderGlow {
  0%, 100% { border-color: rgba(59,130,246,0.3); }
  50%       { border-color: rgba(139,92,246,0.6); }
}

@keyframes heroGridDrift {
  from { transform: translate(0, 0); }
  to   { transform: translate(40px, 40px); }
}

@keyframes shimmer {
  from { background-position: -200% center; }
  to   { background-position: 200% center; }
}

/* ── Hero Animations ────────────────────────────────────────────────────────── */
.hero-badge {
  animation: fadeUp 0.6s ease both;
}
.hero-title {
  animation: fadeUp 0.7s 0.1s ease both;
}
.hero-subtitle {
  animation: fadeUp 0.7s 0.2s ease both;
}
.hero-description {
  animation: fadeUp 0.7s 0.3s ease both;
}
.hero-actions {
  animation: fadeUp 0.7s 0.4s ease both;
}
.hero-stats {
  animation: fadeUp 0.7s 0.5s ease both;
}

/* ── Scroll Reveal Classes ──────────────────────────────────────────────────── */
.reveal,
.reveal-left,
.reveal-right,
.reveal-scale {
  opacity: 0;
  transition: opacity 0.65s cubic-bezier(0.16,1,0.3,1),
              transform 0.65s cubic-bezier(0.16,1,0.3,1);
}

.reveal         { transform: translateY(28px); }
.reveal-left    { transform: translateX(-32px); }
.reveal-right   { transform: translateX(32px); }
.reveal-scale   { transform: scale(0.92); }

.reveal.visible,
.reveal-left.visible,
.reveal-right.visible,
.reveal-scale.visible {
  opacity: 1;
  transform: none;
}

/* ── Card Hover Effects ──────────────────────────────────────────────────────── */
.card-hover {
  transition: transform 0.3s cubic-bezier(0.16,1,0.3,1),
              box-shadow 0.3s ease,
              border-color 0.3s ease;
}

.card-hover:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 30px rgba(59,130,246,0.12);
  border-color: rgba(59,130,246,0.35) !important;
}

.card-hover:hover .project-img {
  transform: scale(1.04);
}

/* ── Button Animations ───────────────────────────────────────────────────────── */
.btn {
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(59,130,246,0.45), 0 8px 20px rgba(59,130,246,0.25);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.btn:active {
  transform: translateY(0);
}

/* ── Skill Card Glow ─────────────────────────────────────────────────────────── */
.skill-card:hover {
  animation: glowPulse 2s ease infinite;
  border-color: rgba(59,130,246,0.5) !important;
}

/* ── Typing Cursor ───────────────────────────────────────────────────────────── */
.cursor {
  display: inline-block;
  width: 3px;
  height: 1em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

/* ── Float Effect for Hero Avatar ────────────────────────────────────────────── */
.float-anim {
  animation: float 5s ease-in-out infinite;
}

/* ── Animated Gradient Text ──────────────────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg in oklch, var(--accent) 0%, var(--accent-2) 50%, var(--accent) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 4s linear infinite;
}

/* ── Nav Link Underline Slide ───────────────────────────────────────────────── */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.25s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* ── Timeline Connector Pulse ───────────────────────────────────────────────── */
.timeline-dot {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-item:hover .timeline-dot {
  transform: scale(1.3);
  box-shadow: 0 0 20px rgba(59,130,246,0.6);
}

/* ── Service Card ───────────────────────────────────────────────────────────── */
.service-card .service-icon {
  transition: transform 0.3s cubic-bezier(0.16,1,0.3,1);
}
.service-card:hover .service-icon {
  transform: scale(1.15) rotate(5deg);
}

/* ── Back to Top ─────────────────────────────────────────────────────────────── */
#back-to-top {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}
#back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* ── Terminal Easter Egg ─────────────────────────────────────────────────────── */
#terminal-easter-egg {
  opacity: 0;
  transform: scale(0.9) translateY(20px);
  pointer-events: none;
  transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.16,1,0.3,1);
}
#terminal-easter-egg.visible {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

.term-line {
  overflow: hidden;
  max-width: 0;
  opacity: 0;
  white-space: nowrap;
  transition: none;
}
.term-line.typed {
  max-width: 100%;
  opacity: 1;
  animation: terminalType 0.5s ease forwards;
}

/* ── Page Load ──────────────────────────────────────────────────────────────── */
body {
  opacity: 0;
  transition: opacity 0.4s ease;
}
body.loaded {
  opacity: 1;
}

/* ── Glow Border Animation ──────────────────────────────────────────────────── */
.glow-border {
  animation: borderGlow 3s ease infinite;
}

/* ── Scroll Progress Bar ─────────────────────────────────────────────────────── */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(to right, var(--accent), var(--accent-2));
  z-index: 9999;
  border-radius: 0 2px 2px 0;
  transition: width 0.1s linear;
}

/* ── Reduced Motion ──────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-left, .reveal-right, .reveal-scale {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-badge, .hero-title, .hero-subtitle,
  .hero-description, .hero-actions, .hero-stats {
    animation: none;
    opacity: 1;
  }
  .gradient-text { animation: none; }
  .float-anim    { animation: none; }
  .skill-card:hover { animation: none; }
  body { opacity: 1; transition: none; }
  body.loaded { opacity: 1; }
}