/* ============================================================
   V4 Animations — MD SAIFULLAH
   ============================================================ */

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

@keyframes preloader-fill {
  0%   { width: 0%; }
  60%  { width: 85%; }
  100% { width: 100%; }
}

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

@keyframes grain-drift {
  0%   { transform: translate(0, 0); }
  10%  { transform: translate(-1%, -1%); }
  20%  { transform: translate(-2%, 1%); }
  30%  { transform: translate(1%, -2%); }
  40%  { transform: translate(-1%, 3%); }
  50%  { transform: translate(2%, 1%); }
  60%  { transform: translate(-2%, -1%); }
  70%  { transform: translate(1%, 2%); }
  80%  { transform: translate(-1%, -2%); }
  90%  { transform: translate(2%, -1%); }
  100% { transform: translate(0, 0); }
}

@keyframes blob-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(40px, -30px) scale(1.05); }
  66%       { transform: translate(-20px, 20px) scale(0.95); }
}

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

@keyframes badge-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%       { transform: scale(1.6); opacity: 0.6; }
}

@keyframes dot-pulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--bg), 0 0 8px rgba(167,139,250,0.4); }
  50%       { box-shadow: 0 0 0 3px var(--bg), 0 0 20px rgba(167,139,250,0.8); }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slide-down {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes scale-in {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

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

@keyframes count-up-flash {
  0%   { color: var(--accent); }
  100% { color: inherit; }
}

/* ── Hero entrance animations ─────────────────────────────── */
.hero__eyebrow  { animation: fade-in-up 0.6s ease 0.1s both; }
.hero__name     { animation: fade-in-up 0.7s ease 0.2s both; }
.hero__typed-wrap { animation: fade-in-up 0.6s ease 0.35s both; }
.hero__bio      { animation: fade-in-up 0.6s ease 0.45s both; }
.hero__cta      { animation: fade-in-up 0.6s ease 0.55s both; }
.hero__visual   { animation: fade-in   0.8s ease 0.3s  both; }

/* ── Lightbox media animation ─────────────────────────────── */
.lightbox.is-open .lightbox__inner {
  animation: scale-in 0.25s ease both;
}

/* ── Page-level transitions (nav) ────────────────────────── */
.nav-mobile-menu.is-open {
  animation: slide-down 0.25s ease both;
}

/* ── Skill bar shimmer on load ───────────────────────────── */
.skill-bar__fill::after {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255,255,255,0.25) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s linear infinite;
  border-radius: inherit;
}

.skill-bar__fill {
  position: relative;
  overflow: hidden;
}

/* ── Card hover glow ─────────────────────────────────────── */
.bento-card {
  transition: border-color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
}

.portfolio-card {
  transition: border-color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
}

/* ── Back-to-top appear ──────────────────────────────────── */
.back-to-top.is-visible {
  animation: fade-in-up 0.3s ease both;
}

/* ── Toast slide ─────────────────────────────────────────── */
@keyframes toast-in {
  from { transform: translateX(-50%) translateY(60px); opacity: 0; }
  to   { transform: translateX(-50%) translateY(0);    opacity: 1; }
}

.toast.is-visible {
  animation: toast-in 0.4s cubic-bezier(0.34,1.56,0.64,1) both;
}

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