/* public/css/glass.css */
.glass-panel {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    color: white;
    padding: 20px;
}

.glass-input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    color: white;
    padding: 8px 12px;
    outline: none;
    width: 100%;
    box-sizing: border-box;
}

.glass-input:focus {
    border-color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.1);
}

.glass-button {
    background: rgba(100, 200, 255, 0.2);
    border: 1px solid rgba(100, 200, 255, 0.4);
    border-radius: 8px;
    color: white;
    padding: 8px 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-weight: bold;
    letter-spacing: 1px;
}

.glass-button:hover {
    background: rgba(100, 200, 255, 0.4);
    box-shadow: 0 0 10px rgba(100, 200, 255, 0.5);
}

.glass-range {
    -webkit-appearance: none;
    width: 100%;
    background: transparent;
}

.glass-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    background: #4df;
    cursor: pointer;
    margin-top: -6px;
    box-shadow: 0 0 10px #4df;
}

.glass-range::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
}

/* Accessibility Focus Styles */
.glass-button:focus-visible,
.glass-input:focus-visible,
.glass-range:focus-visible,
input[type="checkbox"]:focus-visible {
    outline: 2px solid #4df;
    outline-offset: 2px;
    box-shadow: 0 0 15px rgba(68, 221, 255, 0.6);
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 1em;
    height: 1em;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    margin-right: 8px;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}