/* ===== CONTAINER & GRID ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--spacing-6);
}

.container-fluid {
    width: 100%;
    padding: var(--spacing-6);
}

.grid {
    display: grid;
    gap: var(--spacing-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ===== BADGES MODERNOS ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1;
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.2);
    color: #047857;
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.2);
    color: #b45309;
}

.badge-danger {
    background-color: rgba(239, 68, 68, 0.2);
    color: #b91c1c;
}

.badge-info {
    background-color: rgba(59, 130, 246, 0.2);
    color: #1e40af;
}

/* ===== MODAL MODERNO ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal-backdrop);
    animation: fadeIn 0.2s ease-out;
}

.modal {
    background-color: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: scaleIn 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-6);
    border-bottom: 2px solid var(--background-alt);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-tertiary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.modal-close:hover {
    background-color: var(--background-alt);
    color: var(--text-primary);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-6);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-3);
    padding: var(--spacing-6);
    border-top: 2px solid var(--background-alt);
}

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

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

.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }

.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }

.flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-center { align-items: center; justify-content: center; }
.flex-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }

.hidden { display: none; }
.visible { display: block; }

/* ===== RESPONSIVO MOBILE-FIRST ===== */
@media (max-width: 1024px) {
    .container {
        padding: var(--spacing-5);
    }
    
    .grid-3,
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }
    
    .container {
        padding: var(--spacing-4);
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .nav {
        flex-direction: column;
        gap: var(--spacing-2);
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-4);
    }
    
    .modal {
        width: 95%;
        max-height: 95vh;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .btn-lg {
        padding: var(--spacing-3) var(--spacing-6);
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: var(--spacing-2) var(--spacing-4);
        font-size: 0.875rem;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
}

/* ===== PERFORMANCE ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== DARK MODE READY ===== */
@media (prefers-color-scheme: dark) {
    /* Implementar dark mode no futuro */
}