/* 1. Reset Básico y Variables */
:root {
  --brand-50: #f0fdfa;
  --brand-100: #ccfbf1;
  --brand-500: #14b8a6;
  --brand-600: #0d9488;
  --brand-700: #0f766e;
  --brand-900: #134e4a;
}
*, ::before, ::after { box-sizing: border-box; border-width: 0; border-style: solid; }
html { line-height: 1.5; font-family: ui-sans-serif, system-ui, sans-serif; scroll-behavior: smooth; }
body { margin: 0; background-color: #f8fafc; color: #1e293b; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: inherit; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, h4, p, ul { margin: 0; padding: 0; list-style: none; font-size: inherit; font-weight: inherit; }

/* 2. Estructura y Flexbox */
.fixed { position: fixed; }
.relative { position: relative; }
.z-50 { z-index: 50; }
.w-full { width: 100%; }
.max-w-6xl { max-width: 72rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-2xl { max-width: 42rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.flex { display: flex; }
.grid { display: grid; }
.hidden { display: none; }
.flex-col { flex-direction: column; }
.flex-col-reverse { flex-direction: column-reverse; }
.flex-wrap { flex-wrap: wrap; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.flex-1 { flex: 1 1 0%; }
.flex-shrink-0 { flex-shrink: 0; }
.inline-block { display: inline-block; }
.overflow-hidden { overflow: hidden; }
.object-cover { object-fit: cover; }

/* 3. Espaciados (Padding/Margin) */
.h-16 { height: 4rem; } .w-16 { width: 4rem; }
.h-12 { height: 3rem; } .w-12 { width: 3rem; }
.h-10 { height: 2.5rem; } .w-10 { width: 2.5rem; }
.w-64 { width: 16rem; } .h-64 { height: 16rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.pt-32 { padding-top: 8rem; }
.pb-20 { padding-bottom: 5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.pt-16 { padding-top: 4rem; }
.pb-8 { padding-bottom: 2rem; }
.pt-8 { padding-top: 2rem; }
.pt-4 { padding-top: 1rem; }
.p-8 { padding: 2rem; }
.p-6 { padding: 1.5rem; }
.p-4 { padding: 1rem; }
.mb-16 { margin-bottom: 4rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mt-12 { margin-top: 3rem; }
.mt-4 { margin-top: 1rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-1 { margin-top: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }
.ml-4 { margin-left: 1rem; }
.gap-16 { gap: 4rem; }
.gap-12 { gap: 3rem; }
.gap-8 { gap: 2rem; }
.gap-4 { gap: 1rem; }
.space-y-4 > :not([hidden]) ~ :not([hidden]) { margin-top: 1rem; }

/* 4. Tipografía */
.text-6xl { font-size: 3.75rem; line-height: 1; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.font-extrabold { font-weight: 800; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.font-light { font-weight: 300; }
.text-center { text-align: center; }
.tracking-tight { letter-spacing: -0.025em; }
.tracking-wide { letter-spacing: 0.025em; }
.uppercase { text-transform: uppercase; }
.leading-relaxed { line-height: 1.625; }

/* 5. Colores y Fondos */
.bg-white { background-color: #ffffff; }
.bg-white\/90 { background-color: rgba(255, 255, 255, 0.9); }
.bg-slate-50 { background-color: #f8fafc; }
.bg-slate-200 { background-color: #e2e8f0; }
.bg-slate-800 { background-color: #1e293b; }
.bg-slate-900 { background-color: #0f172a; }
.bg-brand-50 { background-color: var(--brand-50); }
.bg-brand-100 { background-color: var(--brand-100); }
.bg-brand-600 { background-color: var(--brand-600); }
.bg-brand-500\/30 { background-color: rgba(20, 184, 166, 0.3); }
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--brand-600), var(--brand-900)); }
.text-white { color: #ffffff; }
.text-slate-400 { color: #94a3b8; }
.text-slate-500 { color: #64748b; }
.text-slate-600 { color: #475569; }
.text-slate-700 { color: #334155; }
.text-slate-800 { color: #1e293b; }
.text-slate-900 { color: #0f172a; }
.text-brand-50 { color: var(--brand-50); }
.text-brand-500 { color: var(--brand-500); }
.text-brand-600 { color: var(--brand-600); }
.text-yellow-500 { color: #eab308; }

/* 6. Bordes, Sombras y Efectos */
.rounded-full { border-radius: 9999px; }
.rounded-3xl { border-radius: 1.5rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-lg { border-radius: 0.5rem; }
.border { border-width: 1px; }
.border-4 { border-width: 4px; }
.border-t { border-top-width: 1px; }
.border-white { border-color: #ffffff; }
.border-slate-100 { border-color: #f1f5f9; }
.border-slate-200 { border-color: #e2e8f0; }
.border-slate-700 { border-color: #334155; }
.border-slate-800 { border-color: #1e293b; }
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0,0,0,0.05); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }
.shadow-brand-500\/30 { box-shadow: 0 10px 15px -3px rgba(20,184,166,0.3); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25); }
.backdrop-blur-md { backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.transition { transition: all 0.3s ease; }
.duration-300 { transition-duration: 300ms; }

/* 7. Estados Hover (Tus colores exactos) */
.hover\:bg-brand-700:hover { background-color: var(--brand-700); }
.hover\:bg-slate-50:hover { background-color: #f8fafc; }
.hover\:bg-\[\#25D366\]:hover { background-color: #25D366; }
.hover\:bg-\[\#E1306C\]:hover { background-color: #E1306C; }
.hover\:bg-black:hover { background-color: #000000; }
.hover\:bg-\[\#0077b5\]:hover { background-color: #0077b5; }
.hover\:bg-\[\#1877F2\]:hover { background-color: #1877F2; }
.hover\:text-brand-600:hover { color: var(--brand-600); }
.hover\:border-brand-500:hover { border-color: var(--brand-500); }
.hover\:underline:hover { text-decoration: underline; }

/* 8. Responsividad (Móvil y Escritorio) */
@media (min-width: 640px) {
  .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
  .sm\:flex-row { flex-direction: row; }
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 768px) {
  .md\:flex { display: flex; }
  .md\:flex-row { flex-direction: row; }
  .md\:text-left { text-align: left; }
  .md\:justify-end { justify-content: flex-end; }
  .md\:justify-start { justify-content: flex-start; }
  .md\:w-80 { width: 20rem; }
  .md\:h-80 { height: 20rem; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:w-2\/3 { width: 66.666667%; }
  .md\:p-12 { padding: 3rem; }
  .space-x-8 > :not([hidden]) ~ :not([hidden]) { margin-left: 2rem; margin-top: 0; }
}
@media (min-width: 1024px) {
  .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}