/* =====================================
   Focus Effect Styles
   20-second meditation focus
   ===================================== */

/* Blur Overlay */
.blur-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: backdrop-filter 20s ease-out;
    pointer-events: none;
    z-index: 10;
}

.blur-overlay.focused {
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
}

/* Vignette Effect */
.vignette {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        circle at center,
        transparent 30%,
        rgba(0, 0, 0, 0.2) 50%,
        rgba(0, 0, 0, 0.4) 70%,
        rgba(0, 0, 0, 0.6) 100%
    );
    opacity: 1;
    transition: opacity 20s ease-out;
    pointer-events: none;
    z-index: 11;
}

.vignette.focused {
    opacity: 0.1;
}

/* Focus Progress Indicator */
.focus-progress {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    opacity: 0.5;
    transition: opacity 0.5s ease;
    z-index: 12;
}

.focus-progress.hide {
    opacity: 0;
    pointer-events: none;
}

.focus-progress-bg {
    opacity: 0.2;
}

.focus-progress-ring {
    stroke-dasharray: 301.6; /* 2 * PI * 48 */
    stroke-dashoffset: 301.6;
    transform: rotate(-90deg);
    transform-origin: center;
    transition: stroke-dashoffset 20s linear;
}

.focus-progress-ring.active {
    stroke-dashoffset: 0;
}

/* Pause Indicator */
.focus-paused::before {
    content: 'PAUSIERT';
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 2rem;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    z-index: 100;
}

/* Mobile Adjustments */
@media screen and (max-width: 767px) {
    .focus-progress {
        width: 80px;
        height: 80px;
    }
    
    .focus-progress-ring {
        stroke-dasharray: 239.4; /* 2 * PI * 38 (smaller radius) */
        stroke-dashoffset: 239.4;
    }
}

/* Performance Mode Adjustments */
.quality-basic .blur-overlay {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(0, 0, 0, 0.3);
    transition: background 20s ease-out;
}

.quality-basic .blur-overlay.focused {
    background: transparent;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .blur-overlay,
    .vignette,
    .focus-progress-ring {
        transition-duration: 0.01ms !important;
    }
}