/* ========================================
   Layout Utilities - Grid, Utility Classes
   ======================================== */

.container {
    max-width: 1800px;
    width: 98%;
    margin: 0 auto;
    padding: 0.5rem;
}

/* Flexibility Helpers */
.text-center {
    text-align: center;
}

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

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

.mb-0 {
    margin-bottom: 0;
}

.mb-xs {
    margin-bottom: var(--space-xs);
}

.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-0 {
    margin-top: 0;
}

.mt-xs {
    margin-top: var(--space-xs);
}

.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);
}

.error {
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
}

/* Loading Spinner */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--color-border-light);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 0.6s linear infinite;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight var(--transition-slow) ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: var(--space-sm);
    }

    .nav {
        flex-direction: column;
        align-items: stretch;
    }

    .nav button,
    .nav a.button-link {
        width: 100%;
    }

    h1 {
        font-size: var(--font-size-2xl);
    }

    h2 {
        font-size: var(--font-size-xl);
    }
}