/* ============================================================
   ANIMATIONS.CSS — Keyframes & Animation Utilities
   ============================================================ */

/* ─── Keyframe Definitions ─────────────────────────────────── */

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

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

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

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

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

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

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

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

@keyframes floatSlow {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33%       { transform: translateY(-8px) rotate(2deg); }
  66%       { transform: translateY(-4px) rotate(-2deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.95); }
}

@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(108, 99, 255, 0.6); }
  70%       { box-shadow: 0 0 0 8px rgba(108, 99, 255, 0); }
}

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

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

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

@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

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

@keyframes loaderProgress {
  0%   { width: 0%; }
  80%  { width: 85%; }
  100% { width: 100%; }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(108, 99, 255, 0.3); }
  50%       { box-shadow: 0 0 40px rgba(108, 99, 255, 0.6); }
}

@keyframes orbit {
  from { transform: rotate(0deg) translateX(90px) rotate(0deg); }
  to   { transform: rotate(360deg) translateX(90px) rotate(-360deg); }
}

@keyframes morphBlob {
  0%, 100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
  50%       { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
}

@keyframes scrollIndicator {
  0%   { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(10px); }
}

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

@keyframes lineGrow {
  from { transform: scaleY(0); }
  to   { transform: scaleY(1); }
}

@keyframes progressFill {
  from { width: 0; }
}

@keyframes typewriterCursor {
  0%, 100% { border-color: var(--accent-1); }
  50%       { border-color: transparent; }
}

@keyframes heroNameReveal {
  from { clip-path: inset(0 100% 0 0); }
  to   { clip-path: inset(0 0% 0 0); }
}

@keyframes backgroundPan {
  from { background-position: 0% center; }
  to   { background-position: -200% center; }
}

/* ─── Reveal System ─────────────────────────────────────────── */

[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal="left"] {
  transform: translateX(-40px);
}
[data-reveal="left"].revealed {
  transform: translateX(0);
}

[data-reveal="right"] {
  transform: translateX(40px);
}
[data-reveal="right"].revealed {
  transform: translateX(0);
}

[data-reveal="scale"] {
  transform: scale(0.9);
}
[data-reveal="scale"].revealed {
  transform: scale(1);
}

/* ─── Stagger Groups ─────────────────────────────────────────── */

[data-stagger] > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
[data-stagger] > *.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Float Animations ──────────────────────────────────────── */

.float-anim        { animation: float 4s ease-in-out infinite; }
.float-anim-slow   { animation: floatSlow 6s ease-in-out infinite; }

/* ─── Gradient Text ─────────────────────────────────────────── */

.gradient-text {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2), var(--accent-3));
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: backgroundPan 4s linear infinite;
}

/* ─── Shine / Shimmer ────────────────────────────────────────── */

.shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255,255,255,0.06) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

/* ─── Typing cursor ──────────────────────────────────────────── */

.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent-1);
  margin-left: 3px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

/* ─── Contribution cells ─────────────────────────────────────── */

.contrib-cell {
  animation: contribAppear 0.3s ease forwards;
  opacity: 0;
}

/* ─── Tilt Glare ─────────────────────────────────────────────── */

.tilt-glare {
  position: absolute;
  inset: 0;
  pointer-events: none;
  transition: background 0.1s ease;
  border-radius: inherit;
  z-index: 10;
}

/* ─── Page Load ──────────────────────────────────────────────── */

body.loaded .hero-content,
body.loaded .hero-visual {
  animation: fadeInUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* ─── Utility Classes ─────────────────────────────────────────── */

.animate-float    { animation: float 3s ease-in-out infinite; }
.animate-pulse    { animation: pulse 2s ease-in-out infinite; }
.animate-spin     { animation: spinSlow 8s linear infinite; }
.animate-gradient { animation: gradientShift 4s ease infinite; }