/* ===== TEXT UTILITIES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: #e74c3c; }
.text-secondary { color: #2c3e50; }
.text-light { color: #7f8c8d; }
.text-white { color: white; }

.font-light { font-weight: 300; }
.font-regular { font-weight: 400; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* ===== SPACING UTILITIES ===== */
.mt-0 { margin-top: 0; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mt-40 { margin-top: 40px; }
.mt-50 { margin-top: 50px; }

.mb-0 { margin-bottom: 0; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }
.mb-40 { margin-bottom: 40px; }
.mb-50 { margin-bottom: 50px; }

.p-0 { padding: 0; }
.p-10 { padding: 10px; }
.p-20 { padding: 20px; }
.p-30 { padding: 30px; }
.p-40 { padding: 40px; }

/* ===== DISPLAY UTILITIES ===== */
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-grid { display: grid; }
.d-none { display: none; }

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

/* ===== WIDTH & HEIGHT UTILITIES ===== */
.w-100 { width: 100%; }
.w-75 { width: 75%; }
.w-50 { width: 50%; }
.w-25 { width: 25%; }

.h-100 { height: 100%; }
.h-auto { height: auto; }

/* ===== BACKGROUND UTILITIES ===== */
.bg-primary { background-color: #e74c3c; }
.bg-secondary { background-color: #2c3e50; }
.bg-light { background-color: #f8f9fa; }
.bg-dark { background-color: #1a252f; }
.bg-white { background-color: white; }

/* ===== BORDER UTILITIES ===== */
.border-0 { border: 0; }
.border-1 { border: 1px solid #dee2e6; }
.border-top { border-top: 1px solid #dee2e6; }
.border-bottom { border-bottom: 1px solid #dee2e6; }
.rounded { border-radius: 4px; }
.rounded-lg { border-radius: 8px; }
.rounded-circle { border-radius: 50%; }

/* ===== VISIBILITY UTILITIES ===== */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* ===== ANIMATION UTILITIES ===== */
.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-up {
    animation: slideUp 0.8s ease forwards;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}