/* ==========================================================================
   Layout: Estrutura principal, containers e regras de responsividade
   ========================================================================== */

/* Container principal */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-6);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-8);
    }
}

/* Grid System melhorado */
.grid {
    display: grid;
    gap: var(--spacing-6);
    width: 100%;
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }

/* Responsividade do grid */
@media (min-width: 640px) {
    .sm\:grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .sm\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .sm\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
    .sm\:grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
    .sm\:grid-cols-6 { grid-template-columns: repeat(6, 1fr); }
}

@media (min-width: 768px) {
    .md\:grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
    .md\:grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
    .md\:grid-cols-6 { grid-template-columns: repeat(6, 1fr); }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
    .lg\:grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
    .lg\:grid-cols-6 { grid-template-columns: repeat(6, 1fr); }
}

@media (min-width: 1280px) {
    .xl\:grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
    .xl\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .xl\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .xl\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
    .xl\:grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
    .xl\:grid-cols-6 { grid-template-columns: repeat(6, 1fr); }
}

/* Gap utilities */
.gap-0 { gap: 0; }
.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-5 { gap: var(--spacing-5); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }
.gap-10 { gap: var(--spacing-10); }
.gap-12 { gap: var(--spacing-12); }
.gap-16 { gap: var(--spacing-16); }

/* Flexbox System (mantido para compatibilidade) */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(-1 * var(--spacing-4));
}

.col {
    flex: 1 0 0%;
    padding: 0 var(--spacing-4);
}

/* Colunas responsivas */
.col-1 { flex: 0 0 auto; width: 8.33333333%; }
.col-2 { flex: 0 0 auto; width: 16.66666667%; }
.col-3 { flex: 0 0 auto; width: 25%; }
.col-4 { flex: 0 0 auto; width: 33.33333333%; }
.col-5 { flex: 0 0 auto; width: 41.66666667%; }
.col-6 { flex: 0 0 auto; width: 50%; }
.col-7 { flex: 0 0 auto; width: 58.33333333%; }
.col-8 { flex: 0 0 auto; width: 66.66666667%; }
.col-9 { flex: 0 0 auto; width: 75%; }
.col-10 { flex: 0 0 auto; width: 83.33333333%; }
.col-11 { flex: 0 0 auto; width: 91.66666667%; }
.col-12 { flex: 0 0 auto; width: 100%; }

@media (min-width: 576px) {
    .col-sm-1 { flex: 0 0 auto; width: 8.33333333%; }
    .col-sm-2 { flex: 0 0 auto; width: 16.66666667%; }
    .col-sm-3 { flex: 0 0 auto; width: 25%; }
    .col-sm-4 { flex: 0 0 auto; width: 33.33333333%; }
    .col-sm-5 { flex: 0 0 auto; width: 41.66666667%; }
    .col-sm-6 { flex: 0 0 auto; width: 50%; }
    .col-sm-7 { flex: 0 0 auto; width: 58.33333333%; }
    .col-sm-8 { flex: 0 0 auto; width: 66.66666667%; }
    .col-sm-9 { flex: 0 0 auto; width: 75%; }
    .col-sm-10 { flex: 0 0 auto; width: 83.33333333%; }
    .col-sm-11 { flex: 0 0 auto; width: 91.66666667%; }
    .col-sm-12 { flex: 0 0 auto; width: 100%; }
}

@media (min-width: 768px) {
    .col-md-1 { flex: 0 0 auto; width: 8.33333333%; }
    .col-md-2 { flex: 0 0 auto; width: 16.66666667%; }
    .col-md-3 { flex: 0 0 auto; width: 25%; }
    .col-md-4 { flex: 0 0 auto; width: 33.33333333%; }
    .col-md-5 { flex: 0 0 auto; width: 41.66666667%; }
    .col-md-6 { flex: 0 0 auto; width: 50%; }
    .col-md-7 { flex: 0 0 auto; width: 58.33333333%; }
    .col-md-8 { flex: 0 0 auto; width: 66.66666667%; }
    .col-md-9 { flex: 0 0 auto; width: 75%; }
    .col-md-10 { flex: 0 0 auto; width: 83.33333333%; }
    .col-md-11 { flex: 0 0 auto; width: 91.66666667%; }
    .col-md-12 { flex: 0 0 auto; width: 100%; }
}

@media (min-width: 992px) {
    .col-lg-1 { flex: 0 0 auto; width: 8.33333333%; }
    .col-lg-2 { flex: 0 0 auto; width: 16.66666667%; }
    .col-lg-3 { flex: 0 0 auto; width: 25%; }
    .col-lg-4 { flex: 0 0 auto; width: 33.33333333%; }
    .col-lg-5 { flex: 0 0 auto; width: 41.66666667%; }
    .col-lg-6 { flex: 0 0 auto; width: 50%; }
    .col-lg-7 { flex: 0 0 auto; width: 58.33333333%; }
    .col-lg-8 { flex: 0 0 auto; width: 66.66666667%; }
    .col-lg-9 { flex: 0 0 auto; width: 75%; }
    .col-lg-10 { flex: 0 0 auto; width: 83.33333333%; }
    .col-lg-11 { flex: 0 0 auto; width: 91.66666667%; }
    .col-lg-12 { flex: 0 0 auto; width: 100%; }
}

/* Main content */
main {
    flex-grow: 1;
    width: 100%;
    min-height: 60vh;
}

/* Loading state */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    width: 100%;
}

.loading .spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Responsividade geral */
@media (max-width: 767.98px) {
    .hidden-mobile {
        display: none !important;
    }
    
    .text-center-mobile {
        text-align: center !important;
    }
    
    .container {
        padding: 0 var(--spacing-3);
    }
}

@media (min-width: 768px) {
    .hidden-desktop {
        display: none !important;
    }
}

@media (max-width: 1023.98px) {
    .hidden-tablet {
        display: none !important;
    }
}

/* Prevenção de CLS (Cumulative Layout Shift) */
img[data-src] {
    opacity: 0;
    transition: opacity 0.3s ease;
    background-color: var(--color-gray-100);
}

img.loaded {
    opacity: 1;
}

.aspect-ratio-box {
    position: relative;
    width: 100%;
    height: 0;
    overflow: hidden;
}

.aspect-ratio-box img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Utilities de layout */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.hidden { display: none; }

.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.items-center { align-items: center; }
.items-baseline { align-items: baseline; }
.items-stretch { align-items: stretch; }

.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-evenly { justify-content: space-evenly; }

/* Espaçamento para seções */
.section-padding {
    padding: var(--spacing-16) 0;
}

.section-padding-sm {
    padding: var(--spacing-8) 0;
}

.section-padding-lg {
    padding: var(--spacing-20) 0;
}

.section-padding-xl {
    padding: var(--spacing-24) 0;
}

/* Container para banners específico */
.banner-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

@media (min-width: 768px) {
    .banner-container {
        padding: 0 var(--spacing-6);
    }
}

@media (min-width: 1024px) {
    .banner-container {
        padding: 0 var(--spacing-8);
    }
}

/* Overflow utilities */
.overflow-auto { overflow: auto; }
.overflow-hidden { overflow: hidden; }
.overflow-visible { overflow: visible; }
.overflow-scroll { overflow: scroll; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-hidden { overflow-y: hidden; }

/* Position utilities */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.sticky-top { position: sticky; top: 0; }

/* Z-index utilities */
.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }
.z-auto { z-index: auto; }

/* Visibilidade */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* Box sizing */
.box-border { box-sizing: border-box; }
.box-content { box-sizing: content-box; }

/* Clearfix */
.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

/* Screen reader only */
.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;
}

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