:root {
   --pino: #24543c;
   --mar: #0c6090;
   --pino-oscuro: #12301f;
   --pino-claro: #e6efe9;
   --fondo: #f5f7f4;
   --dorado: #e4a860;
   --texto: #16231c;
   --gris: #55615a;
   --linea: #d8e0da;
   --fuente: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
 }

 * {
   box-sizing: border-box;
 }

 html {
   scroll-behavior: smooth;
 }

 body {
   margin: 0;
   font-family: var(--fuente);
   color: var(--texto);
   background: var(--fondo);
   line-height: 1.6;
 }

 html,
 body {
   overscroll-behavior-y: none;
   margin: 0;
   height: 100%;
 }

 img {
   max-width: 100%;
   display: block;
 }

 a {
   color: var(--pino);
 }

 a:focus-visible,
 button:focus-visible {
   outline: 3px solid var(--dorado);
   outline-offset: 2px;
 }

 b {
   color: var(--pino-oscuro);
 }

 .wrap {
   max-width: 72rem;
   margin: 0 auto;
   padding: 0 1.25rem;
 }

 .saltar {
   position: absolute;
   left: -999px;
 }

 .saltar:focus {
   left: 1rem;
   top: 1rem;
   background: #fff;
   padding: .5rem 1rem;
   z-index: 99;
 }

 /* Barra superior */
 .barra {
   background: var(--pino-oscuro);
   color: #d3e4d9;
   font-size: .875rem;
 }

 .barra .wrap {
   display: flex;
   justify-content: space-between;
   align-items: center;
   gap: 1rem;
   padding-top: .45rem;
   padding-bottom: .45rem;
   flex-wrap: wrap;
 }

 .barra a {
   color: #d3e4d9;
   text-decoration: none;
 }

 .barra a:hover {
   color: #fff;
   text-decoration: underline;
 }

 .redes {
   display: flex;
   gap: 1.1rem;
 }

 /* Encabezado y menú */
 header.cab {
   background: #fff;
   border-bottom: 1px solid var(--linea);
   position: sticky;
   top: 0;
   z-index: 50;
 }

 header.cab .wrap {
   display: flex;
   align-items: center;
   justify-content: space-between;
   gap: 1rem;
   min-height: 4.5rem;
 }

 .logo {
   display: flex;
   align-items: center;
   gap: .75rem;
   text-decoration: none;
   color: var(--pino);
 }

 .logo .emblema {
   width: 3rem;
   height: 3rem;
   object-fit: contain;
 }

 .logo span.nombre {
   font-weight: 800;
   font-size: 1.05rem;
   line-height: 1.15;
   letter-spacing: -0.01em;
 }

 .logo small {
   display: block;
   font-weight: 500;
   color: var(--gris);
   font-size: .8rem;
 }

 nav.menu>ul {
   list-style: none;
   margin: 0;
   padding: 0;
   display: flex;
   gap: .25rem;
 }

 nav.menu li {
   position: relative;
 }

 nav.menu a.item,
 nav.menu button.item {
   display: block;
   font: inherit;
   font-weight: 600;
   font-size: .95rem;
   color: var(--texto);
   text-decoration: none;
   background: none;
   border: 0;
   cursor: pointer;
   padding: .7rem .85rem;
   border-radius: 6px;
 }

 nav.menu a.item:hover,
 nav.menu button.item:hover,
 nav.menu li:focus-within>.item {
   background: var(--pino-claro);
   color: var(--pino);
 }

 .sub {
   display: none;
   position: absolute;
   left: 0;
   top: 100%;
   min-width: 14rem;
   list-style: none;
   margin: 0;
   padding: .4rem;
   background: #fff;
   border: 1px solid var(--linea);
   border-top: 3px solid var(--pino);
   border-radius: 0 0 8px 8px;
   box-shadow: 0 12px 28px rgba(18, 48, 31, .15);
 }

 nav.menu li:hover>.sub,
 nav.menu li:focus-within>.sub {
   display: block;
 }

 .sub a {
   display: block;
   padding: .55rem .8rem;
   text-decoration: none;
   color: var(--texto);
   font-size: .93rem;
   border-radius: 5px;
 }

 .sub a:hover {
   background: var(--pino-claro);
   color: var(--pino);
 }

 .hamb {
   display: none;
   background: var(--pino);
   color: #fff;
   border: 0;
   border-radius: 6px;
   padding: .55rem .8rem;
   font: inherit;
   font-weight: 600;
   cursor: pointer;
 }

 /* Banner principal */
 .banner {
   background: linear-gradient(120deg, var(--pino-oscuro) 0%, var(--pino) 55%, var(--mar) 140%);
   color: #fff;
   overflow: hidden;
 }

 .banner .wrap {
   display: grid;
   grid-template-columns: 1.15fr .85fr;
   gap: 2.5rem;
   align-items: center;
   padding-top: 3.5rem;
   padding-bottom: 3.5rem;
 }

 .banner h1 {
   font-size: clamp(2.2rem, 5.2vw, 3.6rem);
   line-height: 1.05;
   letter-spacing: -0.03em;
   font-weight: 800;
   margin: 0 0 1rem;
 }

 .banner p {
   font-size: 1.15rem;
   color: #dcebe2;
   max-width: 32rem;
   margin: 0 0 1.8rem;
 }

 .btn {
   display: inline-block;
   font-weight: 700;
   text-decoration: none;
   padding: .8rem 1.4rem;
   border-radius: 999px;
   border: 2px solid transparent;
 }

 .btn.oro {
   background: var(--dorado);
   color: #2a1a00;
 }

 .btn.oro:hover {
   background: #efb872;
 }

 .btn.borde {
   border-color: #fff;
   color: #fff;
 }

 .btn.borde:hover {
   background: rgba(255, 255, 255, .14);
 }

 .botones {
   display: flex;
   gap: .9rem;
   flex-wrap: wrap;
 }

 .logo-card {
   background: #fff;
   border-radius: 16px;
   padding: 1.5rem;
   max-width: 22rem;
   justify-self: center;
   box-shadow: 0 18px 40px rgba(0, 0, 0, .28);
 }

 .logo-card img {
   width: 100%;
   height: auto;
 }

 /* Accesos destacados */
 .accesos {
   margin-top: -2rem;
   position: relative;
   z-index: 2;
 }

 .accesos .wrap {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 1rem;
 }

 .acceso {
   background: #fff;
   border-radius: 12px;
   padding: 1.4rem 1.5rem;
   text-decoration: none;
   color: var(--texto);
   border: 1px solid var(--linea);
   border-left: 6px solid var(--pino);
   box-shadow: 0 8px 22px rgba(18, 48, 31, .08);
   transition: transform .15s, box-shadow .15s;
 }

 .acceso:hover {
   transform: translateY(-3px);
   box-shadow: 0 14px 30px rgba(18, 48, 31, .16);
 }

 .acceso h3 {
   margin: 0 0 .25rem;
   font-size: 1.15rem;
   color: var(--pino);
 }

 .acceso p {
   margin: 0;
   color: var(--gris);
   font-size: .95rem;
 }

 /* Secciones */
 section.bloque {
   padding: 4rem 0 1rem;
   scroll-margin-top: 4rem;
 }

 .titulo-sec {
   display: flex;
   align-items: baseline;
   justify-content: space-between;
   gap: 1rem;
   margin-bottom: 1.5rem;
   border-bottom: 3px solid var(--pino);
   padding-bottom: .5rem;
 }

 .titulo-sec h2 {
   margin: 0;
   font-size: clamp(1.5rem, 3vw, 2rem);
   letter-spacing: -0.02em;
   color: var(--pino-oscuro);
 }

 .titulo-sec a {
   font-weight: 600;
   text-decoration: none;
 }

 .titulo-sec a:hover {
   text-decoration: underline;
 }

 /* Noticias */
 .noticias {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 1.5rem;
 }

 .nota {
   background: #fff;
   border-radius: 12px;
   overflow: hidden;
   border: 1px solid var(--linea);
   display: flex;
   flex-direction: column;
 }

 .nota .foto {
   aspect-ratio: 1 / 1;
   background: var(--pino-claro);
   display: grid;
   place-items: center;
   overflow: hidden;
   color: var(--pino);
   font-size: 3.2rem;
   background-image: conic-gradient(#dbe7df 25%, transparent 0 50%, #dbe7df 0 75%, transparent 0);
   background-size: 20% 20%;

   img {
     width: 100%;
     height: 100%;
     object-fit: cover;
   }

   img[src*="taller-ajedrez"] {
     object-position: center 70%;
   }
 }

 .nota .cuerpo {
   padding: 1.1rem 1.25rem 1.3rem;
   display: flex;
   flex-direction: column;
   gap: .4rem;
   flex: 1;
 }

 .nota time {
   font-size: .82rem;
   color: var(--gris);
   font-weight: 600;
 }

 .nota h3 {
   margin: 0;
   font-size: 1.15rem;
   line-height: 1.3;
   color: var(--pino-oscuro);
 }

 .nota p {
   margin: 0;
   color: var(--gris);
   font-size: .96rem;
 }

 .nota a.mas {
   margin-top: auto;
   padding-top: .5rem;
   font-weight: 700;
   text-decoration: none;
 }

 .nota a.mas:hover {
   text-decoration: underline;
 }

 /* El club */

 ul.comision {

   padding-left: 0;
   margin-left: 0;
   list-style-position: inside;

 }

 /* Calendario y datos */
 .dos {
   display: grid;
   grid-template-columns: 1.4fr 1fr;
   gap: 1.5rem;
 }

 .panel {
   background: #fff;
   border: 1px solid var(--linea);
   border-radius: 12px;
   padding: 1.5rem;
 }

 .panel h3 {
   margin: 0 0 1rem;
   color: var(--pino-oscuro);
   font-size: 1.2rem;
 }

 table {
   width: 100%;
   border-collapse: collapse;
   font-size: .97rem;
 }

 th,
 td {
   text-align: left;
   padding: .7rem .5rem;
   border-bottom: 1px solid var(--linea);
 }

 th {
   color: var(--gris);
   font-size: .85rem;
   font-weight: 600;
 }

 .scroll-x {
   overflow-x: auto;
 }

 dl.datos {
   margin: 0;
   display: grid;
   grid-template-columns: max-content 1fr;
   gap: .6rem 1.2rem;
 }

 dl.datos dt {
   font-weight: 700;
   color: var(--pino);
 }

 dl.datos dd {
   margin: 0;
 }


 /* Fotos */
 .galeria {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: .9rem;
 }

 .galeria button.foto {
   padding: 0;
   border: 0;
   cursor: pointer;
   border-radius: 10px;
   overflow: hidden;
   aspect-ratio: 4 / 3;
   background: var(--pino-claro);
   position: relative;
   font: inherit;
 }

 .galeria button.foto img {
   width: 100%;
   height: 100%;
   object-fit: cover;
   transition: transform .25s;
 }

 .galeria button.foto:hover img {
   transform: scale(1.04);
 }

 .galeria .vacia {
   display: grid;
   place-items: center;
   text-align: center;
   color: var(--gris);
   font-size: .9rem;
   padding: .8rem;
   border: 2px dashed #b9cbbf;
   border-radius: 10px;
   aspect-ratio: 4 / 3;
   background: var(--pino-claro);
 }

 .galeria .vacia b {
   display: block;
   font-size: 2rem;
   color: var(--pino);
   line-height: 1.1;
 }

 dialog.visor {
   border: 0;
   padding: 0;
   background: transparent;
   max-width: 94vw;
   max-height: 94vh;
 }

 dialog.visor::backdrop {
   background: rgba(10, 20, 14, .85);
 }

 dialog.visor img {
   max-width: 94vw;
   max-height: 86vh;
   border-radius: 8px;
   margin: 0 auto;
 }

 dialog.visor p {
   color: #fff;
   text-align: center;
   margin: .5rem 0 0;
 }

 dialog.visor button {
   position: absolute;
   top: -.5rem;
   right: -.5rem;
   background: #fff;
   border: 0;
   border-radius: 50%;
   width: 2.4rem;
   height: 2.4rem;
   font-size: 1.2rem;
   cursor: pointer;
 }

 /* Problema del día */
 .problema {
   display: grid;
   grid-template-columns: minmax(0, 26rem) 1fr;
   gap: 2rem;
   align-items: start;
 }

 .tablero {
   display: grid;
   grid-template-columns: repeat(8, 1fr);
   grid-template-rows: repeat(8, 1fr);
   width: 100%;
   aspect-ratio: 1 / 1;
   border: 5px solid var(--pino);
   border-radius: 6px;
   overflow: hidden;
 }

 .tablero div {
   display: grid;
   place-items: center;
   font-size: clamp(1.5rem, 5.6vw, 2.7rem);
   line-height: 1;
   user-select: none;
 }

 .tablero img {
   width: 100%;
   height: 100%;
   object-fit: contain;
 }

 .tablero .c {
   background: #ecdfbf;
 }

 .tablero .o {
   background: #4f8a6a;
 }

 .tablero .b {
   color: #fff;
   text-shadow: 0 0 2px #000, 0 0 2px #000, 0 1px 1px #000;
 }

 .tablero .n {
   color: #14110d;
 }

 .problema h3 {
   margin: 0 0 .3rem;
   font-size: 1.3rem;
   color: var(--pino-oscuro);
 }

 .problema .consigna {
   font-size: 1.1rem;
   font-weight: 600;
   color: var(--pino);
   margin: 0 0 1rem;
 }

 .problema .acciones {
   display: flex;
   gap: .6rem;
   flex-wrap: wrap;
   margin: 1rem 0;
 }

 .btn-sec {
   font: inherit;
   font-weight: 700;
   cursor: pointer;
   padding: .6rem 1.1rem;
   border-radius: 999px;
   border: 2px solid var(--pino);
   background: #fff;
   color: var(--pino);
 }

 .btn-sec:hover {
   background: var(--pino-claro);
 }

 .btn-sec.lleno {
   background: var(--pino);
   color: #fff;
 }

 .btn-sec.lleno:hover {
   background: var(--pino-oscuro);
 }

 .solucion {
   background: var(--pino-claro);
   border-left: 5px solid var(--dorado);
   padding: .9rem 1.1rem;
   border-radius: 6px;
   font-weight: 600;
 }

 .solucion[hidden] {
   display: none;
 }


 /* Aperturas */
 .intro-sec {
   max-width: 44rem;
   margin: 0 0 1.5rem;
   color: var(--gris);
 }

 .chips {
   display: grid;
   grid-template-columns: repeat(4, 1fr);
   gap: .5rem;
   margin-bottom: 1.5rem;
 }

 .chip {
   font: inherit;
   font-size: .9rem;
   font-weight: 600;
   text-align: left;
   cursor: pointer;
   padding: .55rem .75rem;
   border-radius: 8px;
   border: 1px solid var(--linea);
   background: #fff;
   color: var(--texto);
   line-height: 1.25;
 }

 .chip small {
   display: block;
   font-weight: 500;
   color: var(--gris);
 }

 .chip:hover {
   border-color: var(--pino);
 }

 .chip[aria-pressed="true"] {
   background: var(--pino);
   color: #fff;
   border-color: var(--pino);
 }

 .chip[aria-pressed="true"] small {
   color: #cfe2d6;
 }

 .aperturas {
   display: grid;
   grid-template-columns: minmax(0, 26rem) 1fr;
   gap: 2rem;
   align-items: start;
 }

 .ap-controles {
   display: flex;
   gap: .5rem;
   justify-content: center;
   margin-top: .8rem;
 }

 .ap-controles button {
   font: inherit;
   font-weight: 700;
   font-size: 1.1rem;
   min-width: 3rem;
   padding: .45rem .8rem;
   border-radius: 8px;
   border: 2px solid var(--pino);
   background: #fff;
   color: var(--pino);
   cursor: pointer;
 }

 .ap-controles button:hover:not(:disabled) {
   background: var(--pino-claro);
 }

 .ap-controles button:disabled {
   opacity: .35;
   cursor: default;
 }

 .ap-info h3 {
   margin: 0 0 .2rem;
   font-size: 1.4rem;
   color: var(--pino-oscuro);
 }

 .ap-info .eco {
   color: var(--gris);
   font-weight: 600;
   margin: 0 0 1rem;
 }

 .notacion {
   display: flex;
   flex-wrap: wrap;
   gap: .3rem;
   margin: 0 0 1rem;
 }

 .notacion button {
   font: inherit;
   font-weight: 600;
   padding: .25rem .55rem;
   border-radius: 6px;
   border: 1px solid var(--linea);
   background: #fff;
   cursor: pointer;
   color: var(--texto);
 }

 .notacion button.actual {
   background: var(--dorado);
   border-color: var(--dorado);
   color: #2a1a00;
 }

 .nota-notacion {
   font-size: .88rem;
   color: var(--gris);
   margin-top: 1rem;
 }

 /* Principios */
 .princ {
   display: grid;
   grid-template-columns: repeat(2, minmax(0, 1fr));
   gap: 1rem;
   align-items: start;
 }

 .princ>details.regla {
   margin-bottom: 0;
 }

 .princ-titulo {
   font-size: 1.2rem;
   font-weight: 600;
   color: var(--pino-oscuro);
 }

 .princ_content {
   padding: 0 1.25rem 1.25rem;
 }

 .princ_content p {
   margin: 0;
 }

 .princ .lema {
   grid-column: 1 / -1;
   margin: 0;
   color: var(--pino-oscuro);
   font-size: clamp(1.5rem, 3vw, 2rem);
   letter-spacing: -0.02em;
   text-align: center;
   margin-top: 1rem;
 }

 /* Reglamento */
 .reglas {
   display: grid;
   grid-template-columns: 1fr 1fr;
   gap: 1.5rem;
   align-items: start;
 }

 .reglas h3 {
   margin: 0 0 .8rem;
   color: var(--pino-oscuro);
   font-size: 1.2rem;
 }

 details.regla {
   background: #fff;
   border: 1px solid var(--linea);
   border-radius: 10px;
   margin-bottom: .6rem;
 }

 details.regla summary {
   cursor: pointer;
   font-weight: 700;
   padding: .85rem 1.1rem;
   color: var(--pino);
   list-style: none;
   display: flex;
   justify-content: space-between;
   gap: 1rem;
 }

 details.regla summary::-webkit-details-marker {
   display: none;
 }

 details.regla summary::after {
   content: "+";
   font-size: 1.3rem;
   line-height: 1;
   color: var(--dorado);
   font-weight: 800;
 }

 details.regla[open] summary::after {
   content: "\2212";
 }

 details.regla .cont {
   padding: 0 1.1rem 1rem;
 }

 details.regla .cont p {
   margin: .4rem 0;
 }

 details.regla.princ .cont p {
   margin: 0;
 }

 details.regla .cont ul {
   margin: .4rem 0;
   padding-left: 1.2rem;
 }

 details.regla .cont li {
   margin-bottom: .3rem;
 }

 /* Torneos */
 .proximo {
   background: linear-gradient(120deg, var(--pino-oscuro), var(--pino));
   color: #fff;
   border-radius: 12px;
   padding: 1.6rem 1.8rem;
   margin-bottom: 1.5rem;
   border-left: 8px solid var(--dorado);
 }

 .proximo h3 {
   margin: 0 0 .3rem;
   font-size: 1.5rem;
 }

 .proximo p {
   margin: .2rem 0;
   color: #dcebe2;
 }

 .proximo .btn {
   margin-top: .9rem;
 }

 /* Pie */
 footer {
   background: var(--pino-oscuro);
   color: #b8cfc0;
   margin-top: 4rem;
 }

 footer .cols {
   display: grid;
   grid-template-columns: 1.4fr 1fr 1fr;
   gap: 2rem;
   padding: 3rem 0 2rem;
 }

 footer h4 {
   color: #fff;
   margin: 0 0 .8rem;
   font-size: 1rem;
 }

 footer ul {
   list-style: none;
   margin: 0;
   padding: 0;
 }

 footer li {
   margin-bottom: .4rem;
 }

 footer a {
   color: #b8cfc0;
   text-decoration: none;
 }

 footer a:hover {
   color: #fff;
   text-decoration: underline;
 }

 footer .copy {
   border-top: 1px solid rgba(255, 255, 255, .14);
   padding: 1rem 0 1.5rem;
   font-size: .88rem;
 }

 @media (max-width: 56rem) {
   .hamb {
     display: block;
   }

   nav.menu {
     display: none;
     position: absolute;
     left: 0;
     right: 0;
     top: 100%;
     background: #fff;
     border-bottom: 1px solid var(--linea);
     padding: .5rem 1.25rem 1rem;
     box-shadow: 0 14px 24px rgba(18, 48, 31, .12);
   }

   nav.menu.abierto {
     display: block;
   }

   nav.menu>ul {
     flex-direction: column;
   }

   .sub {
     display: block;
     position: static;
     border: 0;
     box-shadow: none;
     padding: 0 0 .3rem 1rem;
     min-width: 0;
   }

   .banner .wrap,
   .dos,
   .princ,
   footer .cols {
     grid-template-columns: 1fr;
   }

   .accesos .wrap,
   .noticias {
     grid-template-columns: 1fr;
   }

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

   .problema,
   .aperturas,
   .reglas {
     grid-template-columns: 1fr;
   }

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

   .banner {

     h1,
     p {
       text-align: center;
     }
   }

   .botones {
     justify-self: center;
   }

   .logo-card {
     max-width: 15rem;
     justify-self: center;
   }

   .banner .wrap {
     padding-top: 2.5rem;
     padding-bottom: 3.5rem;
   }

   .princ {
     .lema {
       grid-column: initial;
       text-align: center;
       font-size: 2rem;
     }
   }
 }

 @media (prefers-reduced-motion: reduce) {
   html {
     scroll-behavior: auto;
   }

   .acceso {
     transition: none;
   }
 }