/* ══════════════════════════════════════════════════════════
   SOLO LEVELING – Animations
   ══════════════════════════════════════════════════════════ */

/* ── Page entry: fade + rise ─────────────────────────────── */
.main > * {
  animation: page-enter 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes page-enter {
  0%   { opacity: 0; transform: translateY(20px); filter: blur(8px); }
  60%  { filter: blur(0); }
  100% { opacity: 1; transform: translateY(0); filter: blur(0); }
}

/* ── Staggered card grids ────────────────────────────────── */
.card-grid > .card,
.summary-grid > .stat-card,
.dashboard-grid > .dashboard-card,
.session-list > .session-item {
  animation: card-materialize 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.card-grid > .card:nth-child(1),
.summary-grid > .stat-card:nth-child(1),
.dashboard-grid > .dashboard-card:nth-child(1),
.session-list > .session-item:nth-child(1) { animation-delay: 0.05s; }

.card-grid > .card:nth-child(2),
.summary-grid > .stat-card:nth-child(2),
.dashboard-grid > .dashboard-card:nth-child(2),
.session-list > .session-item:nth-child(2) { animation-delay: 0.10s; }

.card-grid > .card:nth-child(3),
.summary-grid > .stat-card:nth-child(3),
.dashboard-grid > .dashboard-card:nth-child(3),
.session-list > .session-item:nth-child(3) { animation-delay: 0.15s; }

.card-grid > .card:nth-child(4),
.summary-grid > .stat-card:nth-child(4),
.dashboard-grid > .dashboard-card:nth-child(4),
.session-list > .session-item:nth-child(4) { animation-delay: 0.20s; }

.card-grid > .card:nth-child(5),
.session-list > .session-item:nth-child(5) { animation-delay: 0.25s; }

.card-grid > .card:nth-child(6),
.session-list > .session-item:nth-child(6) { animation-delay: 0.30s; }

.card-grid > .card:nth-child(n+7) { animation-delay: 0.35s; }

@keyframes card-materialize {
  0%   {
    opacity: 0;
    transform: translateY(30px) scale(0.96);
    clip-path: var(--clip-notch);
    filter: brightness(2) blur(6px);
  }
  60%  {
    filter: brightness(1.3) blur(0);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: brightness(1) blur(0);
  }
}

/* ── Sidebar nav slide-in ────────────────────────────────── */
.nav__link {
  animation: nav-slide-in 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.nav__link:nth-child(1) { animation-delay: 0.10s; }
.nav__link:nth-child(2) { animation-delay: 0.18s; }
.nav__link:nth-child(3) { animation-delay: 0.26s; }
.nav__link:nth-child(4) { animation-delay: 0.34s; }
.nav__link:nth-child(5) { animation-delay: 0.42s; }

@keyframes nav-slide-in {
  from {
    opacity: 0;
    transform: translateX(-30px);
    filter: blur(4px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
    filter: blur(0);
  }
}

/* ── Glitch text effect for titles ───────────────────────── */
.page-header h1,
.login-title {
  position: relative;
  animation: glitch-soft 6s ease-in-out infinite;
}

@keyframes glitch-soft {
  0%, 90%, 100% {
    text-shadow: 0 0 40px rgba(var(--color-accent-rgb), 0.4);
    transform: translate(0, 0);
  }
  91% {
    text-shadow:
      -2px 0 var(--color-accent),
      2px 0 var(--color-purple),
      0 0 40px rgba(var(--color-accent-rgb), 0.4);
    transform: translate(1px, 0);
  }
  92% {
    text-shadow:
      2px 0 var(--color-accent),
      -2px 0 var(--color-purple),
      0 0 40px rgba(var(--color-accent-rgb), 0.4);
    transform: translate(-1px, 0);
  }
  93% {
    text-shadow:
      -1px 0 var(--color-accent),
      1px 0 var(--color-purple),
      0 0 40px rgba(var(--color-accent-rgb), 0.4);
    transform: translate(0, 1px);
  }
  94% {
    text-shadow: 0 0 40px rgba(var(--color-accent-rgb), 0.4);
    transform: translate(0, 0);
  }
}

/* ── Border pulse on hover for cards ─────────────────────── */
.card--system {
  position: relative;
}

.card--system::before,
.card--system::after {
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* ── Button: ripple on click ─────────────────────────────── */
.btn {
  overflow: hidden;
}

@keyframes btn-ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* ── System loading bar (loading state) ──────────────────── */
.loading {
  position: relative;
  font-family: var(--font-system);
}

.loading::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -8px;
  transform: translateX(-50%);
  width: 200px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  animation: loading-bar 1.5s ease-in-out infinite;
}

@keyframes loading-bar {
  0%, 100% { transform: translateX(-50%) scaleX(0.3); opacity: 0.4; }
  50%      { transform: translateX(-50%) scaleX(1);   opacity: 1; }
}

/* ── Stat card value count-up shimmer ────────────────────── */
.stat-card__value--xl {
  background-size: 200% auto;
  animation: value-shimmer 4s linear infinite;
}

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

/* ── Modal entry ─────────────────────────────────────────── */
.modal__overlay--visible .modal__content {
  animation: modal-rise 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes modal-rise {
  0%   {
    opacity: 0;
    transform: translateY(40px) scale(0.92);
    filter: blur(10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

/* ── Toast slide ─────────────────────────────────────────── */
.toast--visible {
  animation: toast-slide 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes toast-slide {
  from {
    opacity: 0;
    transform: translateX(120%) skewX(-10deg);
  }
  to {
    opacity: 1;
    transform: translateX(0) skewX(0);
  }
}

/* ── Form input focus pulse ──────────────────────────────── */
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  animation: input-focus 0.5s ease;
}

@keyframes input-focus {
  0% {
    box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0.5);
  }
  100% {
    box-shadow: 0 0 0 2px rgba(var(--color-accent-rgb), 0.2);
  }
}

/* ── Heatmap cell pulse for high intensity ───────────────── */
.heatmap-cell--5 {
  animation: cell-pulse 2.5s ease-in-out infinite;
}

@keyframes cell-pulse {
  0%, 100% {
    box-shadow: 0 0 15px rgba(var(--color-purple-rgb), 0.4);
  }
  50% {
    box-shadow:
      0 0 25px rgba(var(--color-purple-rgb), 0.7),
      0 0 50px rgba(var(--color-purple-rgb), 0.3);
  }
}

/* ── Calendar today cell pulse ───────────────────────────── */
.calendar-cell--today {
  animation: today-pulse 2s ease-in-out infinite;
}

@keyframes today-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(var(--color-purple-rgb), 0.5); }
  50%      { box-shadow: 0 0 0 4px rgba(var(--color-purple-rgb), 0.15); }
}

/* ── Session timer pulse ─────────────────────────────────── */
.session-timer {
  animation: timer-glow 2s ease-in-out infinite;
}

@keyframes timer-glow {
  0%, 100% { filter: drop-shadow(0 0 12px rgba(var(--color-accent-rgb), 0.6)); }
  50%      { filter: drop-shadow(0 0 24px rgba(var(--color-accent-rgb), 0.9)) drop-shadow(0 0 40px rgba(var(--color-purple-rgb), 0.5)); }
}

/* ── Badge sparkle on hover ──────────────────────────────── */
.badge {
  transition: all 0.2s ease;
}

.badge:hover {
  transform: translateY(-1px) scale(1.05);
  filter: brightness(1.3);
}

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