/* ── Blazor / Bootstrap defaults ── */
.valid.modified:not([type=checkbox]) { outline: 1px solid #26b050; }
.invalid { outline: 1px solid red; }
.validation-message { color: red; }

#blazor-error-ui {
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0,0,0,.2);
    display: none;
    left: 0;
    padding: .6rem 1.25rem .7rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}
#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: .75rem;
    top: .5rem;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}
.blazor-error-boundary::after { content: "An error has occurred." }

.loading-progress {
    position: relative;
    display: block;
    width: 8rem;
    height: 8rem;
    margin: 20vh auto 1rem;
}
.loading-progress circle {
    fill: none;
    stroke: #e0e0e0;
    stroke-width: .6rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}
.loading-progress circle:last-child {
    stroke: #1b6ec2;
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * .8), 500%;
    transition: stroke-dasharray .05s ease-in-out;
}
.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto .2rem;
}
.loading-progress-text:after { content: var(--blazor-load-percentage-text, "Loading"); }

/* ══════════════════════════════════════════════════
   Tres en Raya – diseño responsivo
══════════════════════════════════════════════════ */

/* ── Variables de tema ── */
:root {
    --bg:                linear-gradient(160deg, #17c9b4 0%, #0b9e8e 100%);
    --titulo-grad:       linear-gradient(135deg, #ffffff 0%, #ffd54f 45%, #ffffff 100%);
    --tablero-gap:       rgba(0,0,0,.35);
    --celda-bg:          #fff;
    --celda-hover:       #f0fdf8;
    --marcador-bg:       rgba(0,0,0,.2);
    --jugador-activo-bg: rgba(255,255,255,.12);
    --sinturno-color:    rgba(255,255,255,.28);
    --pensando-color:    rgba(255,255,255,.75);
    --nivel-bg:          rgba(255,255,255,.15);
    --nivel-border:      rgba(255,255,255,.4);
    --nivel-focus:       rgba(255,255,255,.25);
}

html[data-tema="oscuro"] {
    --bg:                linear-gradient(160deg, #1a1a2e 0%, #16213e 100%);
    --titulo-grad:       linear-gradient(135deg, #74ebd5 0%, #ffd54f 45%, #74ebd5 100%);
    --tablero-gap:       rgba(0,0,0,.65);
    --celda-bg:          #1e2230;
    --celda-hover:       #262a3f;
    --marcador-bg:       rgba(0,0,0,.38);
    --jugador-activo-bg: rgba(255,255,255,.07);
    --sinturno-color:    rgba(255,255,255,.2);
    --pensando-color:    rgba(255,255,255,.55);
    --nivel-bg:          rgba(255,255,255,.08);
    --nivel-border:      rgba(255,255,255,.22);
    --nivel-focus:       rgba(255,255,255,.14);
}

/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg);
    min-height: 100vh;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: #fff;
}

/* ── Contenedor principal centrado ── */
.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 440px;
    width: 100%;
    margin: 0 auto;
    padding: 1rem 1rem 2rem;
    min-height: 100vh;
}

/* ── Fila título + controles ── */
.titulo-row, .titulo-row *,
.game-container:focus { outline: none; }

.titulo-row {
    position: relative;
    width: 100%;
    text-align: center;
    margin-bottom: 0.5rem;
}

h1.burning {
    outline: none;
    font-family: 'Arial Narrow', Arial, sans-serif;
    font-weight: 900;
    font-size: clamp(2.4rem, 12vw, 3.8rem);
    text-align: center;
    margin: 0;
    background: var(--titulo-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.03em;
    line-height: 1.1;
}

#btnTema {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: rgba(255,255,255,.6);
    cursor: pointer;
    transition: color .2s, transform .2s;
    padding: 0.3rem;
}
#btnTema:hover {
    color: #fff;
    transform: translateY(-50%) scale(1.15);
}

#btnAyuda {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.4rem;
    color: rgba(255,255,255,.6);
    cursor: pointer;
    transition: color .2s, transform .2s;
    padding: 0.3rem;
}
#btnAyuda:hover {
    color: #fff;
    transform: translateY(-50%) scale(1.15);
}

/* ── Fichas (colores globales) ── */
.fa-times  { color: #e74c3c; }   /* X rojo */
.fa-circle { color: #3498db; }   /* O azul */

/* ── Animación de entrada de ficha ── */
@keyframes fichaEntrada {
    from { opacity: 0; transform: scale(0.2); }
    to   { opacity: 1; transform: scale(1);   }
}
.celda i {
    animation: fichaEntrada .22s cubic-bezier(.34, 1.56, .64, 1) both;
}

/* ── Control de volumen ── */
.vol-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    margin-bottom: 0.5rem;
    opacity: 0.65;
    transition: opacity .2s;
}
.vol-row:hover,
.vol-row:focus-within { opacity: 1; }

.vol-row i {
    font-size: 1rem;
    cursor: pointer;
    color: #fff;
    width: 1.1rem;
    text-align: center;
    flex-shrink: 0;
    transition: transform .15s;
}
.vol-row i:hover { transform: scale(1.2); }

.vol-slider {
    width: 90px;
    height: 4px;
    accent-color: #fff;
    cursor: pointer;
    vertical-align: middle;
}

/* ── Fila de turnos ── */
#capa-turnos {
    display: flex;
    align-items: center;
    width: 100%;
    margin-bottom: 0.75rem;
    gap: 0.5rem;
}

.col-jugador {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.15rem;
    padding: 0.5rem 0.25rem;
    border-radius: 14px;
    transition: background .25s;
}

/* Resalta el jugador activo con fondo sutil */
.col-jugador:has(.conturno) {
    background: var(--jugador-activo-bg);
}

.tipojugador {
    font-size: clamp(2.2rem, 11vw, 3.2rem);
    cursor: pointer;
    transition: transform .2s, opacity .2s;
    line-height: 1;
}
.tipojugador:hover { transform: scale(1.12); }

/* Jugador con el turno: blanco brillante */
.conturno {
    color: #fff;
    filter: drop-shadow(0 0 10px rgba(255,255,255,.7));
}
/* Jugador esperando: atenuado */
.sinturno {
    color: var(--sinturno-color);
    filter: none;
}

/* Pequeño indicador X / O debajo del icono de tipo */
.ficha-indicator {
    font-size: clamp(1rem, 5vw, 1.4rem);
    line-height: 1;
    opacity: .85;
}

.col-nivel {
    flex: 0 0 auto;
    text-align: center;
}

#txtNivel {
    font-size: 0.85rem;
    padding: 0.3rem 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--nivel-border);
    background: var(--nivel-bg);
    color: #fff;
    outline: none;
    cursor: pointer;
    transition: background .2s;
}
#txtNivel:focus { background: var(--nivel-focus); }
#txtNivel option { color: #333; background: #fff; }

/* ── Tablero ── */
#capa-tablero {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0.75rem;
}

.tablero-wrapper {
    position: relative;
    width: min(320px, 92vw);
    height: min(320px, 92vw);
    border-radius: 14px;
    box-shadow: 0 6px 18px rgba(0,0,0,.3);
}

.tablero-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 6px;
    background: var(--tablero-gap);
    border: 6px solid var(--tablero-gap);
    border-radius: 14px;
    width: 100%;
    height: 100%;
}

.celda {
    background: var(--celda-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: min(3.8rem, 20vw);
    cursor: pointer;
    user-select: none;
    border-radius: 8px;
    transition: background .15s, transform .1s;
}
.celda:focus {
    outline: none;
    box-shadow: inset 0 0 0 3px rgba(255,255,255,.85);
}
.celda:hover:not(.bloqueada) {
    background: var(--celda-hover);
    transform: scale(1.04);
}
.celda.bloqueada { cursor: default; }

/* ── Animación de línea ganadora ── */
@keyframes dibujarLinea {
    from { stroke-dashoffset: 8; }
    to   { stroke-dashoffset: 0; }
}
.linea-ganadora {
    stroke-dasharray: 8;
    animation: dibujarLinea .45s ease-out both;
}

/* ── Bajo tablero: deshacer + temporizador ── */
.bajo-tablero {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 2.2rem;
    margin-top: 0.4rem;
    gap: 0.75rem;
}

.btn-deshacer {
    background: none;
    border: 1px solid rgba(255,255,255,.3);
    color: rgba(255,255,255,.65);
    border-radius: 8px;
    padding: 0.2rem 0.55rem;
    font-size: 0.82rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: background .2s, color .2s;
}
.btn-deshacer:hover {
    background: rgba(255,255,255,.15);
    color: #fff;
}

.timer-display {
    font-size: 1.1rem;
    font-weight: 600;
    color: rgba(255,255,255,.8);
    transition: color .3s;
}
.timer-display.timer-urgente {
    color: #ff6b6b;
    animation: pulsoUrgente .5s ease-in-out infinite alternate;
}
@keyframes pulsoUrgente {
    from { transform: scale(1); }
    to   { transform: scale(1.1); }
}

/* ── Extras row (toggles timer/torneo) ── */
.extras-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    margin-top: 0.6rem;
    opacity: 0.55;
    transition: opacity .2s;
}
.extras-row:hover,
.extras-row:focus-within { opacity: 1; }

.extra-btn {
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.2);
    color: rgba(255,255,255,.7);
    border-radius: 20px;
    padding: 0.28rem 0.75rem;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: background .2s, color .2s, border-color .2s;
}
.extra-btn:hover {
    background: rgba(255,255,255,.2);
    color: #fff;
}
.extra-btn.on {
    background: rgba(255,255,255,.22);
    border-color: rgba(255,255,255,.55);
    color: #fff;
}

/* ── Config row (selector tiempo / best-of) ── */
.config-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 0.35rem;
    flex-wrap: wrap;
}
.config-label {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.82rem;
    color: rgba(255,255,255,.65);
}
.config-select {
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.28);
    color: #fff;
    border-radius: 6px;
    padding: 0.12rem 0.35rem;
    font-size: 0.82rem;
    cursor: pointer;
    outline: none;
}
.config-select option { color: #333; background: #fff; }
.torneo-score {
    font-weight: 600;
    color: rgba(255,255,255,.85);
}

/* ── Indicador "Pensando" con puntos pulsantes ── */
.pensando {
    margin-top: 0.6rem;
    font-size: 1rem;
    font-style: italic;
    color: var(--pensando-color);
}
@keyframes puntoPulso {
    0%, 60%, 100% { opacity: 0; }
    30%           { opacity: 1; }
}
.puntos span {
    animation: puntoPulso 1.4s ease-in-out infinite;
}
.puntos span:nth-child(1) { animation-delay: 0.0s; }
.puntos span:nth-child(2) { animation-delay: 0.2s; }
.puntos span:nth-child(3) { animation-delay: 0.4s; }

/* ── Marcador ── */
#capa-marcador {
    display: flex;
    width: 100%;
    background: var(--marcador-bg);
    border-radius: 14px;
    padding: 0.6rem 0;
}

.col-marcador {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.1rem;
}

.marcador-icono {
    font-size: clamp(1.4rem, 7vw, 2.2rem);
    line-height: 1;
}

.marcador-stack {
    font-size: clamp(0.8rem, 4vw, 1.2rem);
    line-height: 1;
    width: 2em;
    height: 2em;
}

.marcador {
    font-weight: 700;
    font-size: clamp(1.4rem, 7vw, 2rem);
    color: #fff;
    line-height: 1;
}

/* ── Modal fin de partida ── */
.modal-backdrop-custom {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.55);
    z-index: 1040;
    backdrop-filter: blur(3px);
}

.modal-custom {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
    padding: 1rem;
}

.modal-custom-content {
    background: #fff;
    border-radius: 16px;
    padding: 1.75rem 2rem;
    min-width: 260px;
    max-width: min(360px, 90vw);
    text-align: center;
    box-shadow: 0 8px 40px rgba(0,0,0,.35);
    animation: modalEntrada .25s ease-out;
}
@keyframes modalEntrada {
    from { opacity: 0; transform: scale(.88); }
    to   { opacity: 1; transform: scale(1);   }
}

.modal-custom-header {
    font-size: 1.35rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
}

.modal-custom-body {
    font-size: 1.1rem;
    color: #444;
    margin-bottom: 1.4rem;
}

.modal-resultado {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
}

.modal-custom-footer {
    display: flex;
    justify-content: center;
}

/* ── Modal de ayuda ── */
.ayuda-content {
    max-width: min(480px, 94vw);
    text-align: left;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
}

.ayuda-body {
    overflow-y: auto;
    font-size: 0.95rem;
    color: #444;
    margin-bottom: 1.2rem;
    overscroll-behavior: contain;
    scrollbar-width: thin;
}

.ayuda-seccion {
    margin-bottom: 1.1rem;
    padding-bottom: 1.1rem;
    border-bottom: 1px solid #f0f0f0;
}
.ayuda-seccion:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.ayuda-seccion h3 {
    font-size: 1rem;
    font-weight: 700;
    color: #17c9b4;
    margin: 0 0 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.ayuda-seccion p,
.ayuda-seccion ul {
    margin: 0;
    line-height: 1.55;
}

.ayuda-lista {
    padding-left: 1.3rem;
    margin-top: 0.35rem;
}
.ayuda-lista li { margin-bottom: 0.2rem; }

.ayuda-x { color: #e74c3c; }
.ayuda-o { color: #3498db; }

/* ── 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;
}

/* Tamaños responsivos para pantallas muy pequeñas */
@media (max-width: 360px) {
    .game-container { padding: .75rem .75rem 1.5rem; }
    h1.burning { font-size: 2rem; }
    .tipojugador { font-size: 2rem; }
}

/* Ajuste en pantallas grandes: centrar con algo de espacio vertical */
@media (min-height: 750px) {
    .game-container {
        padding-top: clamp(1rem, 4vh, 2.5rem);
        justify-content: center;
        min-height: unset;
    }
}