/**
 * Loading States & Feedback Styles
 */

/* Loading spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 102, 0, 0.3);
    border-radius: 50%;
    border-top-color: var(--stf-primary, #FF6600);
    animation: spin 1s ease-in-out infinite;
}

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

/* Skeleton loading */
.skeleton {
    background: linear-gradient(90deg, #1a1a1a 25%, #2a2a2a 50%, #1a1a1a 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: 4px;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Button loading state */
button.loading,
input[type="submit"].loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

button.loading::after,
input[type="submit"].loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.6s linear infinite;
}

/* Form loading overlay */
.form-loading {
    position: relative;
}

.form-loading::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-loading::after {
    content: "Loading...";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 11;
    color: white;
    font-weight: bold;
}

/* Progress bar */
.progress-bar {
    width: 100%;
    height: 4px;
    background-color: rgba(255, 102, 0, 0.2);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--stf-primary, #FF6600);
    transition: width 0.3s ease;
    animation: progress-pulse 1.5s ease-in-out infinite;
}

@keyframes progress-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Toast notifications */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #1a1a1a;
    color: white;
    padding: 15px 20px;
    border-radius: 5px;
    border-left: 4px solid var(--stf-primary, #FF6600);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    animation: slideIn 0.3s ease-out;
    max-width: 400px;
}

.toast.success {
    border-left-color: #00ff00;
}

.toast.error {
    border-left-color: #ff0000;
}

.toast.warning {
    border-left-color: #ffaa00;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}