:root {
    --verde: #16a34a;
    --verde-osc: #15803d;
    --verde-cla: #22c55e;
    --lima: #84cc16;
    --tinta: #0c2118;
    --gris: #4b5d54;
    --fondo: #f0fdf4;
    --borde: #d1e7da;
    --meta: #1877f2;
    --rojo: #dc2626;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif; color: var(--tinta); background: var(--fondo); line-height: 1.5; overflow-x: hidden; }
a { color: inherit; }
code { font-size: .85em; background: #e7f5ec; padding: 1px 5px; border-radius: 4px; word-break: break-all; }

/* Barra superior con avance */
.barra { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 5%; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--borde); }
.marca { display: flex; align-items: center; gap: 8px; text-decoration: none; font-size: 1.15rem; letter-spacing: .5px; }
.marca svg { width: 40px; }
.progreso { display: flex; align-items: center; gap: 10px; font-size: .9rem; color: var(--gris); }
.progreso-b { width: 140px; height: 10px; background: #dcfce7; border-radius: 99px; overflow: hidden; }
.progreso-b i { display: block; height: 100%; width: 0; background: var(--verde); border-radius: 99px; transition: width .4s; }

/* Portada */
.hero { position: relative; display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 24px; padding: 56px 5% 90px; color: #fff; background: radial-gradient(circle at 85% 20%, #1f7a45 0, transparent 45%), var(--tinta); overflow: hidden; }
.hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 60px; background: var(--fondo); clip-path: polygon(0 100%, 100% 0, 100% 100%); }
.sello { display: inline-block; padding: 4px 12px; border: 1px solid #22c55e88; border-radius: 99px; color: #bbf7d0; font-size: .85rem; font-weight: 600; }
.hero h1 { margin: 14px 0 12px; font-size: clamp(2.1rem, 5vw, 3.6rem); font-weight: 900; line-height: 1.05; letter-spacing: -1px; text-shadow: 0 3px 0 #06140e; }
.hero h1 em { font-style: normal; color: var(--verde-cla); }
.hero p { max-width: 460px; font-size: 1.1rem; color: #d1fae5; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 26px; list-style: none; }
.chips li { padding: 6px 12px; background: #ffffff14; border-radius: 10px; font-size: .9rem; font-weight: 600; }
.hero-dibujo { width: 100%; max-width: 440px; justify-self: center; }
.ruta { fill: none; stroke: #22c55e; stroke-width: 3; stroke-dasharray: 8 10; animation: fluye 1.4s linear infinite; }
.h-et { fill: #d1fae5; font-weight: 800; font-size: 16px; }
.flota { animation: flota 5s ease-in-out infinite; }
.f2 { animation-delay: -1.6s; }
.f3 { animation-delay: -3.2s; }
.chispa { fill: var(--lima); animation: chispa 2.2s ease-in-out infinite; }
.c2 { animation-delay: -1.1s; }
@keyframes fluye { to { stroke-dashoffset: -36; } }
@keyframes flota { 50% { transform: translateY(-8px); } }
@keyframes chispa { 50% { opacity: .2; } }

.btn { display: inline-block; padding: 12px 26px; border: 0; border-radius: 12px; background: var(--verde); color: #fff; font-weight: 800; text-decoration: none; box-shadow: 0 4px 0 var(--verde-osc); transition: transform .15s; }
.btn:hover { transform: translateY(-2px); }
.btn.claro { background: #fff; color: var(--verde-osc); box-shadow: 0 4px 0 var(--borde); border: 1px solid var(--borde); }

/* Cuerpo */
.guia { max-width: 1080px; margin: 0 auto; padding: 0 16px 60px; }
h2 { margin-bottom: 18px; font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 900; letter-spacing: -.5px; }
.antes, .problemas { margin: 10px 0 40px; }
.tarjetas { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.tarjeta { position: relative; display: flex; flex-direction: column; gap: 4px; padding: 18px; background: #fff; border: 1px solid var(--borde); border-radius: 16px; }
.tarjeta svg { width: 52px; margin-bottom: 6px; }
.tarjeta small { color: var(--gris); }
.tarjeta .globo { position: absolute; top: 14px; right: 14px; }

/* Pasos */
.pasos { list-style: none; display: grid; gap: 22px; }
.paso { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 28px; padding: 22px; background: #fff; border: 1px solid var(--borde); border-radius: 22px; opacity: 0; transform: translateY(24px); transition: opacity .5s, transform .5s, border-color .3s; }
.paso.visto { opacity: 1; transform: none; }
.paso:nth-child(even) .paso-dibujo { order: 2; }
.paso.hecho { border-color: var(--verde-cla); box-shadow: 0 0 0 3px #dcfce7; }
.paso-txt { position: relative; }
.paso-txt.ancho { grid-column: 1 / -1; }
.num { display: inline-grid; place-items: center; width: 46px; height: 46px; margin-bottom: 10px; border-radius: 14px; background: var(--verde); color: #fff; font-size: 1.4rem; font-weight: 900; box-shadow: 0 4px 0 var(--verde-osc); }
.paso.hecho .num { background: var(--lima); box-shadow: 0 4px 0 #4d7c0f; }
.paso h3 { font-size: 1.55rem; font-weight: 900; line-height: 1.15; letter-spacing: -.3px; }
.paso p { margin-top: 8px; color: var(--gris); font-size: 1.02rem; }
.aviso { padding: 10px 12px; background: #fefce8; border-left: 4px solid #eab308; border-radius: 8px; color: var(--tinta) !important; font-size: .95rem !important; }
.aviso.rojo { background: #fef2f2; border-color: var(--rojo); }
.acciones { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 16px; }
.ir { padding: 8px 14px; border: 1px solid #bfdbfe; border-radius: 10px; background: #eff6ff; color: var(--meta); font-weight: 700; font-size: .92rem; text-decoration: none; }
.listo { display: inline-flex; align-items: center; gap: 6px; margin-left: auto; font-weight: 700; cursor: pointer; }
.listo input { width: 20px; height: 20px; accent-color: var(--verde); }

/* Globo "?" */
.globo { position: relative; }
.globo summary { display: grid; place-items: center; width: 34px; height: 34px; list-style: none; border-radius: 50%; background: var(--tinta); color: #fff; font-weight: 900; cursor: pointer; }
.globo summary::-webkit-details-marker { display: none; }
.globo[open] summary { background: var(--verde); }
.globo > ul, .globo > p { position: absolute; z-index: 5; top: 44px; left: 50%; width: min(360px, 86vw); transform: translateX(-50%); padding: 14px 16px 14px 30px; background: #fff; border: 1px solid var(--borde); border-radius: 14px; box-shadow: 0 14px 30px #0c211826; font-size: .93rem; color: var(--tinta); }
.globo > p { padding-left: 16px; }
.globo li + li { margin-top: 6px; }
.tarjeta .globo > p { left: auto; right: 0; transform: none; }

/* Dibujo de la pantalla de Meta */
.pantalla { width: 100%; height: auto; display: block; filter: drop-shadow(0 12px 22px #0c21181f); }
.p-marco { fill: #fff; stroke: #d7dee8; }
.p-barra { fill: #eef1f5; }
.p-url { fill: #fff; stroke: #d7dee8; }
.p-url-t { font-size: 11px; fill: #64748b; }
.p-lateral { fill: #f7f8fa; }
.p-menu { font-size: 11.5px; fill: #64748b; }
.p-menu.on { fill: var(--meta); font-weight: 700; }
.p-menu-on { fill: #e7f0fe; }
.p-titulo { font-size: 17px; font-weight: 800; fill: #1c2b33; }
.p-label { font-size: 11px; fill: #475569; }
.p-campo { fill: #fff; stroke: #cbd5e1; }
.p-opcion { fill: #eff6ff; stroke: var(--meta); stroke-width: 1.5; }
.p-opcion-t { font-size: 12px; font-weight: 700; fill: #1c2b33; }
.p-radio { fill: #fff; stroke: var(--meta); stroke-width: 2; }
.p-boton { fill: var(--meta); }
.p-boton-t { font-size: 12.5px; font-weight: 700; fill: #fff; }
.p-pulso { fill: #1877f255; transform-box: fill-box; transform-origin: center; animation: pulso 1.6s ease-out infinite; }
.p-mano { fill: #0c2118; stroke: #fff; stroke-width: 1.5; }
@keyframes pulso { from { transform: scale(.4); opacity: 1; } to { transform: scale(1.6); opacity: 0; } }

/* Paso final */
.final { background: linear-gradient(160deg, #fff 60%, #ecfdf3); }
.datos { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; margin: 16px 0; }
.dato { display: flex; flex-direction: column; gap: 2px; padding: 14px; border: 1px dashed var(--verde-cla); border-radius: 14px; background: #fff; }
.dato-n { display: inline-grid; place-items: center; width: 28px; height: 28px; margin-bottom: 6px; border-radius: 8px; background: var(--tinta); color: #fff; font-weight: 800; }
.dato small { color: var(--gris); font-size: .86rem; }
.dato .en { color: var(--meta); font-weight: 600; }

/* Problemas */
.abrible summary { list-style: none; cursor: pointer; padding-right: 26px; }
.abrible summary::-webkit-details-marker { display: none; }
.abrible summary::after { content: "+"; position: absolute; top: 14px; right: 18px; font-size: 1.4rem; font-weight: 800; color: var(--verde); }
.abrible[open] summary::after { content: "−"; }
.abrible p { margin-top: 8px; color: var(--gris); font-size: .95rem; }

.pie { padding-top: 20px; border-top: 1px solid var(--borde); color: var(--gris); font-size: .9rem; }
.pie a { display: inline-block; margin-top: 6px; color: var(--meta); font-weight: 700; }

@media (max-width: 820px) {
    .hero { grid-template-columns: 1fr; padding-top: 36px; text-align: left; }
    .hero-dibujo { max-width: 320px; }
    .paso { grid-template-columns: 1fr; gap: 16px; padding: 16px; }
    .paso:nth-child(even) .paso-dibujo { order: 0; }
    .progreso-b { width: 70px; }
    .listo { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .paso { opacity: 1; transform: none; }
}

/* Videos */
.videos { margin: 10px 0 40px; }
.video { display: flex; flex-direction: column; gap: 4px; padding: 0 0 16px; background: #fff; border: 1px solid var(--borde); border-radius: 16px; overflow: hidden; text-align: left; font: inherit; color: inherit; cursor: pointer; transition: transform .2s, box-shadow .2s; }
.video:hover { transform: translateY(-3px); box-shadow: 0 12px 24px #0c21181a; }
.video > b, .video > small { padding: 0 16px; }
.video b { margin-top: 10px; line-height: 1.25; }
.video small { color: var(--gris); font-size: .86rem; }
.video .video-nota { color: var(--tinta); }
.video-img { position: relative; display: block; aspect-ratio: 16 / 9; background: var(--tinta); }
.video-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.video-img i { position: absolute; inset: 0; margin: auto; display: grid; place-items: center; width: 58px; height: 42px; border-radius: 12px; background: #ff0000; color: #fff; font-style: normal; font-size: 1.1rem; }
.video-img em { position: absolute; right: 8px; bottom: 8px; padding: 2px 7px; border-radius: 6px; background: #000c; color: #fff; font-style: normal; font-size: .78rem; font-weight: 700; }
.letra-chica { margin-top: 10px; color: var(--gris); font-size: .9rem; }
.ver { padding: 8px 12px; border: 1px solid #fecaca; border-radius: 10px; background: #fef2f2; color: #b91c1c; font: inherit; font-weight: 700; font-size: .88rem; cursor: pointer; }
.ver span { color: var(--gris); font-weight: 600; }
.ver:hover { background: #fee2e2; }

.reproductor { width: min(960px, 94vw); margin: auto; padding: 0; border: 0; border-radius: 16px; background: #000; overflow: visible; }
.reproductor::backdrop { background: #0c2118d9; }
.marco-video { aspect-ratio: 16 / 9; }
.marco-video iframe { width: 100%; height: 100%; border: 0; border-radius: 16px; display: block; }
.cerrar { position: absolute; top: -46px; right: 0; width: 38px; height: 38px; border: 0; border-radius: 50%; background: #fff; color: var(--tinta); font-size: 1.1rem; font-weight: 900; cursor: pointer; }