/* ============================================
   Layout - Grid, Containers, Responsivo
   Mobile-first approach
   ============================================ */

/* === Container === */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

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

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

/* === Grid System === */
.grid {
    display: grid;
    gap: var(--space-4);
}

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

/* Responsive grid - cards */
.grid-offers {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-4);
}

@media (min-width: 480px) {
    .grid-offers { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
    .grid-offers { grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
}

@media (min-width: 1024px) {
    .grid-offers { grid-template-columns: repeat(4, 1fr); }
}

/* Categories grid */
.grid-categories {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}

@media (min-width: 480px) {
    .grid-categories { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 768px) {
    .grid-categories { grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
}

@media (min-width: 1024px) {
    .grid-categories { grid-template-columns: repeat(5, 1fr); }
}

/* === Flex utilities === */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* === Sections === */
.section {
    padding: var(--space-10) 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-6);
    color: var(--color-text);
}

@media (min-width: 768px) {
    .section { padding: var(--space-12) 0; }
    .section-title { font-size: var(--text-3xl); }
}

/* === Page layout with sidebar === */
.page-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

@media (min-width: 1024px) {
    .page-layout {
        grid-template-columns: 1fr 300px;
    }
}

/* === Admin layout === */
.admin-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: 100vh;
}

.admin-sidebar {
    background: #0f172a;
    color: #fff;
    padding: var(--space-4) 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
}
.admin-sidebar::-webkit-scrollbar { width: 4px; }
.admin-sidebar::-webkit-scrollbar-track { background: transparent; }
.admin-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

.admin-main {
    padding: var(--space-5) var(--space-6);
    background: #f8fafc;
    overflow-x: hidden;
    min-width: 0;
}

@media (max-width: 1023px) {
    .admin-layout {
        grid-template-columns: 1fr;
    }
    .admin-sidebar {
        position: fixed;
        left: -240px;
        width: 240px;
        z-index: var(--z-overlay);
        transition: left 0.25s ease;
        box-shadow: none;
    }
    .admin-sidebar.open {
        left: 0;
        box-shadow: 4px 0 24px rgba(0,0,0,0.3);
    }
    .admin-main {
        padding: var(--space-4);
    }
}

/* === Hide/Show === */
.hidden { display: none !important; }

@media (max-width: 767px) {
    .hide-mobile { display: none !important; }
}

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