/* UTILITY CLASSES */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-auto { margin-top: auto; }
.mb-auto { margin-bottom: auto; }

.flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.align-end { align-items: flex-end; }

.grid { display: grid; }
.grid-auto-fit { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-auto-fill { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }

.m-sm { margin: var(--space-sm); }
.m-md { margin: var(--space-md); }
.m-lg { margin: var(--space-lg); }
.m-xl { margin: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

/* ACCESSIBILITY UTILITIES */
.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;
}

/* COMMON COMPONENT STYLES */
.article-link-clean {
    color: inherit;
    text-decoration: none;
}

.article-link-clean:hover {
    color: var(--color-accent);
}

.inline-form {
    display: inline;
}

/* LOADING STATES */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    border-top-color: var(--color-accent);
    animation: spin 1s ease-in-out infinite;
}

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

/* FOCUS STYLES */
.focus-visible:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* HOVER EFFECTS */
.hover-lift:hover {
    transform: translateY(-2px);
    transition: transform 0.2s ease;
}

.hover-scale:hover {
    transform: scale(1.02);
    transition: transform 0.2s ease;
}

/* TRANSITIONS */
.transition-all {
    transition: all 0.2s ease;
}

.transition-colors {
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.transition-transform {
    transition: transform 0.2s ease;
}