/* =============================================
   AMAZEING - Animations
   ============================================= */

/* =============================================
   KEYFRAMES
   ============================================= */

/* Pulse animation for active point */
@keyframes pulse-point {
    0%, 100% {
        transform: scale(1);
        box-shadow: var(--shadow-soft), 0 0 15px var(--point-bg);
    }
    50% {
        transform: scale(1.1);
        box-shadow: var(--shadow-soft), 0 0 25px var(--point-bg);
    }
}

/* Pulse animation for hint cells */
@keyframes pulse-hint {
    0%, 100% {
        background: var(--hint-bg);
    }
    50% {
        background: rgba(255, 255, 100, 0.5);
    }
}

/* Shake animation for invalid moves */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-4px); }
    40% { transform: translateX(4px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

/* Star twinkle effect */
@keyframes twinkle {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* Modal appear animation */
@keyframes modal-appear {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Win celebration animation */
@keyframes celebrate {
    0% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.05);
    }
    50% {
        transform: scale(1);
    }
    75% {
        transform: scale(1.03);
    }
    100% {
        transform: scale(1);
    }
}

/* Path draw animation */
@keyframes path-draw {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Glow pulse */
@keyframes glow-pulse {
    0%, 100% {
        box-shadow: 0 0 5px var(--line-color);
    }
    50% {
        box-shadow: 0 0 20px var(--line-color), 0 0 30px var(--line-color);
    }
}

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

/* Slide up */
@keyframes slide-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Bounce */
@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Spin (for loading) */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* =============================================
   ANIMATION CLASSES
   ============================================= */

.animate-fade-in {
    animation: fade-in 0.3s ease forwards;
}

.animate-slide-up {
    animation: slide-up 0.4s ease forwards;
}

.animate-bounce {
    animation: bounce 0.5s ease;
}

.animate-celebrate {
    animation: celebrate 0.6s ease;
}

.animate-glow {
    animation: glow-pulse 1.5s ease infinite;
}

/* Path segment animation */
.path-segment {
    animation: path-draw 0.15s ease forwards;
}

/* Win modal special animations */
.win-modal-active .final-artwork {
    animation: celebrate 0.6s ease;
}

.win-modal-active .modal h2 {
    animation: bounce 0.6s ease 0.2s;
}

/* =============================================
   TRANSITIONS
   ============================================= */

/* Smooth transitions for interactive elements */
.cell,
.point,
.control-btn,
.menu-btn,
.level-btn,
.theme-btn,
.primary-btn,
.secondary-btn {
    transition: all 0.2s ease;
}

/* Grid container transition for size changes */
.grid-container {
    transition: transform 0.3s ease;
}

/* Theme transition */
body {
    transition: background-color 0.5s ease;
}

.background {
    transition: background 0.5s ease, opacity 0.5s ease;
}

/* =============================================
   REDUCED MOTION
   ============================================= */

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