.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-primary {
    color: var(--primary-color);
}

.text-secondary {
    color: var(--secondary-color);
}

.text-accent {
    color: var(--accent-color);
}

.text-dark {
    color: var(--text-dark);
}

.text-medium {
    color: var(--text-medium);
}

.text-light {
    color: var(--text-light);
}

.bg-white {
    background-color: var(--bg-white);
}

.bg-light {
    background-color: var(--bg-light);
}

.bg-gray {
    background-color: var(--bg-gray);
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mb-5 { margin-bottom: 48px; }

.pt-1 { padding-top: 8px; }
.pt-2 { padding-top: 16px; }
.pt-3 { padding-top: 24px; }
.pt-4 { padding-top: 32px; }
.pt-5 { padding-top: 64px; }

.pb-1 { padding-bottom: 8px; }
.pb-2 { padding-bottom: 16px; }
.pb-3 { padding-bottom: 24px; }
.pb-4 { padding-bottom: 32px; }
.pb-5 { padding-bottom: 64px; }

.section {
    padding: 80px 0;
}

.section-title {
    font-size: 36px;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 16px;
    font-weight: bold;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-medium);
    text-align: center;
    margin-bottom: 48px;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.btn {
    display: inline-block;
    padding: 12px 32px;
    font-size: 16px;
    border-radius: 4px;
    transition: all var(--transition-fast);
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #1470D9;
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-accent {
    background-color: var(--accent-color);
    color: white;
}

.btn-accent:hover {
    background-color: #D9753F;
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card {
    background-color: white;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-body {
    padding: 24px;
}

.card-title {
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: bold;
}

.card-text {
    font-size: 14px;
    color: var(--text-medium);
    line-height: 1.8;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -12px;
}

.col-3 {
    flex: 0 0 25%;
    max-width: 25%;
    padding: 0 12px;
}

.col-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 0 12px;
}

.col-6 {
    flex: 0 0 50%;
    max-width: 50%;
    padding: 0 12px;
}

.col-12 {
    flex: 0 0 100%;
    max-width: 100%;
    padding: 0 12px;
}

.flex {
    display: flex;
}

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

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

.flex-column {
    display: flex;
    flex-direction: column;
}

.grid {
    display: grid;
}

.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.gap-4 { gap: 32px; }

.hidden {
    display: none;
}

.visible {
    display: block;
}

.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;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.fade-in {
    animation: fadeIn var(--transition-normal) ease-in-out;
}

.slide-up {
    animation: slideUp var(--transition-normal) ease-in-out;
}

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

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

@media (max-width: 768px) {
    .col-3, .col-4, .col-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .section {
        padding: 48px 0;
    }
    
    .section-title {
        font-size: 28px;
    }
}