/* ==========================================
   ANIMATIONS.CSS
   Scope: Keyframes · Utility classes · Scroll reveal
          GPU hint · Reduced motion
   Note: Global transition override REMOVED —
         moved to components.css per-property
   ========================================== */

/* ==========================================
   Floating Particles (canvas layer)
   ========================================== */
.particles {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ==========================================
   Fade In
   ========================================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes pageLoad {
    to { opacity: 1; }
}

.fade-in    { animation: fadeIn 0.7s ease-in-out; }
.fade-in-up { animation: fadeInUp 0.7s ease-in-out; }

/* ==========================================
   Scroll Reveal
   ========================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   Pulse & Bounce
   ========================================== */
.pulse {
    animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50%       { transform: scale(1.04); }
}

.bounce {
    animation: bounce 2.2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    40%       { transform: translateY(-9px); }
    60%       { transform: translateY(-4px); }
}

/* ==========================================
   Floating
   ========================================== */
.floating {
    animation: floating 3.2s ease-in-out infinite;
}

@keyframes floating {
    0%, 100% { transform: translateY(0px); }
    50%       { transform: translateY(-9px); }
}

/* ==========================================
   Loading Spinner
   ========================================== */
.loading-spinner {
    width: 36px; height: 36px;
    border: 3px solid rgba(0, 0, 0, 0.10);
    border-left: 3px solid rgba(0, 0, 0, 0.55);
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
}

body.dark .loading-spinner {
    border-color: rgba(255, 255, 255, 0.10);
    border-left-color: rgba(255, 255, 255, 0.55);
}

@keyframes spin {
    0%   { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==========================================
   Card Hover Shine
   ========================================== */
.project-card {
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.04), transparent);
    transform: rotate(45deg);
    opacity: 0;
    transition: opacity 0.3s;
}

.project-card:hover::before {
    animation: cardShine 0.8s ease-in-out;
}

@keyframes cardShine {
    0%   { opacity: 0; transform: rotate(45deg) translateX(-200%); }
    50%  { opacity: 1; transform: rotate(45deg) translateX(0%); }
    100% { opacity: 0; transform: rotate(45deg) translateX(200%); }
}

/* ==========================================
   Button Shine
   ========================================== */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before { left: 100%; }

/* ==========================================
   GPU Accelerated
   ========================================== */
.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
}

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