/* ================================================================
   UTILITIES — Spacing, visibility, text, animation helpers
   ================================================================ */

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

/* --- Text colors --- */
.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-text-muted); }
.text-white { color: white; }

/* --- Font weight --- */
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

/* --- Spacing --- */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }
.mt-5 { margin-top: var(--space-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-2xl); }

/* --- Visibility --- */
.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;
}

.hidden { display: none; }

@media (max-width: 768px) {
    .hide-mobile { display: none; }
}

@media (min-width: 769px) {
    .hide-desktop { display: none; }
}

/* --- Lazy load images --- */
img[data-src] {
    opacity: 0;
    transition: opacity var(--transition-slow);
}

img[data-src].loaded {
    opacity: 1;
}

/* --- Fade in animation --- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}