/* PROYECTO 3 - CSS COMENTADO. Prueben cambiar colores en :root. */
:root{--azul:#1954b8;--oscuro:#14243d;--celeste:#eaf4ff;--fondo:#f3f8ff;--borde:#dbe8f7;--violeta:#7756ce}*{box-sizing:border-box}body{margin:0;background:var(--fondo);font-family:system-ui,-apple-system,Segoe UI,Arial,sans-serif;color:var(--oscuro);font-size:16px}.hero{max-width:1350px;margin:0 auto 26px;border-radius:0 0 30px 30px;background:linear-gradient(110deg,#dbebff,#f0eaff 85%,#fff);padding:37px 36px;display:flex;align-items:center;justify-content:space-between}.hero-inner{max-width:830px}.eyebrow{font-weight:850;letter-spacing:2px;color:#1851b0;font-size:.85rem}.hero h1{font-size:clamp(2.3rem,4.5vw,4rem);margin:11px 0 6px;letter-spacing:-2px}.hero p{color:#446081;line-height:1.65;font-size:1.13rem;margin:0}.hero-emoji{font-size:6rem}.hero-badges{display:flex;gap:9px;flex-wrap:wrap;margin-top:19px}.hero-badges span{background:white;border:1px solid var(--borde);padding:7px 13px;border-radius:99px;font-weight:650;color:#3d5682}.layout{max-width:1350px;margin:auto;padding:0 0 30px;display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:27px}.panel{background:#fff;border:1px solid var(--borde);border-radius:23px;padding:31px;box-shadow:0 12px 36px #17386b12}h2{font-size:1.5rem;margin:0 0 9px}h3{margin:0 0 10px}.muted{color:#526d91;line-height:1.6}.formulario{display:grid;gap:13px;margin-top:23px}.formulario label{font-weight:700;margin-top:5px}.formulario input,.formulario select{width:100%;border:1px solid #bbcde7;padding:16px;border-radius:13px;font:inherit;background:white;color:var(--oscuro)}.formulario input:focus,.formulario select:focus,.btn:focus-visible,.tarjeta:focus-visible{outline:3px solid #ffc257;outline-offset:3px}.btn{font:inherit;font-weight:800;border:0;border-radius:13px;padding:15px 20px;cursor:pointer}.primario{background:var(--azul);color:white}.primario:hover{background:#0d3d8b}.secundario{background:#eef4fd;color:#134da1}.formulario .btn{margin-top:12px}.info{background:#eef6ff;border-radius:18px;padding:22px;margin-top:25px;line-height:1.75}.info ol{padding-left:23px;margin-bottom:0}.info li{padding:4px 0}.ranking{padding:0;list-style:none}.ranking li{display:flex;justify-content:space-between;gap:7px;padding:14px 0;border-bottom:1px solid var(--borde);align-items:center}.ranking small{display:block;color:#617898;padding-top:4px}.ranking b{color:#124dad;white-space:nowrap}.tip{padding:17px}.tip p{margin-bottom:0}.sin-ranking{color:#617898;padding:10px 0}.partida-cabecera{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;flex-wrap:wrap}.estadisticas{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:25px 0}.estadisticas div{padding:15px 5px;text-align:center;background:#eff6ff;border-radius:15px}.estadisticas strong{display:block;font-size:1.45rem;color:#174eaa}.estadisticas span{color:#5f7895;font-size:.88rem}.tablero{display:grid;grid-template-columns:repeat(var(--columnas),minmax(0,1fr));gap:14px;max-width:690px;margin:22px auto}.form-tarjeta{margin:0}.tarjeta{width:100%;aspect-ratio:1/1;background:linear-gradient(145deg,#2762ce,#6845c1);border:3px solid #fff;border-radius:17px;cursor:pointer;box-shadow:0 6px 13px #1e378a2a;font:inherit;color:white;display:flex;align-items:center;justify-content:center;transition:transform .15s}.tarjeta:hover:not(:disabled){transform:translateY(-3px)}.dorso{font-size:clamp(1.8rem,4vw,3rem)}.frente{display:none;color:#163d7b;align-items:center;justify-content:center;flex-direction:column;gap:4px}.frente .imagen{font-size:clamp(1.6rem,4vw,3rem);line-height:1.3}.frente small{font-size:clamp(.65rem,1.3vw,.91rem);font-weight:800}.tarjeta.visible{background:#f0f8ff;border:3px solid #b9d8ff}.tarjeta.visible.acierto{background:#ddfae7;border-color:#74cf95}.tarjeta.visible .dorso{display:none}.tarjeta.visible .frente{display:flex}.tarjeta:disabled{cursor:default;opacity:1}.alerta{background:#fff3d8;border-radius:14px;padding:15px;margin:15px 0;color:#744704}.alerta.bien{background:#e5f7ed;color:#206545}.instruccion{margin:17px 0}.continuar{text-align:center;margin-top:18px}.victoria{text-align:center;padding:20px;background:#fff8dc;border-radius:18px}.gran-emoji{font-size:4rem}.puntaje-final{font-size:2rem;color:#a66a08}footer{text-align:center;padding:24px;color:#607795}@media(max-width:1000px){.layout{grid-template-columns:1fr;padding:0 18px 30px}.hero{margin:0 18px 24px}.hero-emoji{font-size:4rem}}@media(max-width:540px){.hero{padding:26px 20px}.hero-emoji{display:none}.panel{padding:19px}.tablero{gap:8px}.tarjeta{border-radius:12px}.estadisticas{gap:5px}.estadisticas strong{font-size:1.1rem}.estadisticas span{font-size:.75rem}.hero-badges span{font-size:.8rem}}