/* Utilidades de layout y tipografía (reemplazo local de Tailwind CDN) */

/* Tipografía base */
.font-sans {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.font-mono {
    font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.antialiased {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }

.leading-relaxed { line-height: 1.625; }

/* Display */
.hidden { display: none !important; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.grid { display: grid; }

.opacity-0 { opacity: 0; }

/* Spacing */
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mt-10 { margin-top: 2.5rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-24 { padding-top: 6rem; padding-bottom: 6rem; }
.pt-6 { padding-top: 1.5rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }

.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-5 { gap: 1.25rem; }
.gap-6 { gap: 1.5rem; }
.gap-10 { gap: 2.5rem; }

.space-y-2 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.5rem; }

/* Sizing */
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-6xl { max-width: 72rem; }

.w-5 { width: 1.25rem; }
.h-5 { height: 1.25rem; }
.w-7 { width: 1.75rem; }
.h-7 { height: 1.75rem; }

/* Layout helpers */
.justify-between { justify-content: space-between; }
.scroll-smooth { scroll-behavior: smooth; }
.rounded-2xl { border-radius: 1rem; }

.border-t { border-top-width: 1px; border-top-style: solid; }
.border-white\/5 { border-color: rgba(255, 255, 255, 0.05); }

.bg-slate-950\/40 { background-color: rgba(2, 6, 23, 0.4); }
.text-slate-300 { color: #cbd5e1; }
.text-slate-400 { color: #94a3b8; }

/* Accesibilidad */
.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;
}

.sr-only.focus\:not-sr-only:focus {
    position: static;
    width: auto;
    height: auto;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

.focus\:absolute:focus { position: absolute; }
.focus\:top-4:focus { top: 1rem; }
.focus\:left-4:focus { left: 1rem; }
.focus\:z-\[200\]:focus { z-index: 200; }
.focus\:px-4:focus { padding-left: 1rem; padding-right: 1rem; }
.focus\:py-2:focus { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.focus\:bg-cyan-400:focus { background-color: #22d3ee; }
.focus\:text-slate-900:focus { color: #0f172a; }
.focus\:rounded-lg:focus { border-radius: 0.5rem; }
.focus\:font-semibold:focus { font-weight: 600; }

/* Header / navegación */
.site-header__nav { display: none; }
.site-header__cta { display: none; }
.site-header__menu-btn { display: inline-flex; }

@media (min-width: 640px) {
    .site-header__cta { display: inline-flex; }
    .sm\:inline-flex { display: inline-flex; }
    .sm\:flex-row { flex-direction: row; }
}

@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
    .site-header__nav {
        display: flex;
        align-items: center;
        gap: 0.25rem;
    }

    .site-header__menu-btn { display: none !important; }
    .site-header__mobile { display: none !important; }

    .lg\:flex { display: flex; }
    .lg\:hidden { display: none !important; }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 1023px) {
    .site-header__nav { display: none !important; }
}