/* ============================================
   UTILITIES.CSS - Utility Classes
   ============================================ */

/* Search clear button */
.search-clear-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 16px;
    padding: 4px 6px;
    cursor: pointer;
    line-height: 1;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

.search-clear-btn:hover {
    color: var(--text-primary);
}

/* Screen-reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* Checkbox cursor */
input[type="checkbox"] { cursor: pointer; }

/* Display */
.hidden { display: none !important; }
.visible { display: block !important; }
.flex { display: flex !important; }
.grid { display: grid !important; }

/* Spacing */
.m-0 { margin: 0 !important; }
.mt-1 { margin-top: var(--space-sm) !important; }
.mt-2 { margin-top: var(--space-md) !important; }
.mt-3 { margin-top: var(--space-lg) !important; }
.mb-1 { margin-bottom: var(--space-sm) !important; }
.mb-2 { margin-bottom: var(--space-md) !important; }
.mb-3 { margin-bottom: var(--space-lg) !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--space-sm) !important; }
.p-2 { padding: var(--space-md) !important; }
.p-3 { padding: var(--space-lg) !important; }

/* Text */
.text-center { text-align: center !important; }
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }

.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }

/* Flex Utilities */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gap-1 { gap: var(--space-sm); }
.gap-2 { gap: var(--space-md); }
.gap-3 { gap: var(--space-lg); }

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

#scrollToTopBtn:hover {
    background: var(--secondary);
    border-color: var(--secondary);
    color: white;
    transform: translateY(-2px);
}

#scrollToTopBtn:active {
    transform: translateY(0);
}