@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&display=swap');

:root {
    --lila-base: #c3a1cd;
    --lila-oscuro: #6d5677;
    --lila-texto: #372b3d;
    --tarjeta: rgba(255, 255, 255, 0.88);
    --radio-grande: 28px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(255, 255, 255, 0.35), transparent 32%),
        linear-gradient(180deg, #d4b7dd 0%, var(--lila-base) 100%);
    color: var(--lila-texto);
    font-family: 'Montserrat', sans-serif;
}

input,
select,
button {
    font: inherit;
}

.app-shell {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: clamp(1rem, 2vw, 1.5rem);
    padding: clamp(1rem, 2vw, 2rem);
    align-items: start;
    min-height: 100vh;
}

.panel-control {
    width: min(100%, 320px);
    padding: 0.8rem;
    border-radius: var(--radio-grande);
    background: rgba(255, 255, 255, 0.35);
    position: sticky;
    top: 1rem;
    transition: width 0.25s ease, padding 0.25s ease;
}

.panel-control.is-collapsed {
    width: 78px;
}

.panel-control.is-collapsed .panel-contenido {
    display: none;
}

.panel-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    padding: 0.85rem 1rem;
    border: none;
    border-radius: 18px;
    background-color: var(--lila-oscuro);
    color: #ffffff;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.panel-toggle:hover,
.panel-toggle:focus-visible,
.butons:hover,
.butons:focus-visible {
    background-color: #5c4666;
}

.panel-control.is-collapsed .panel-toggle {
    padding: 1rem;
}

.panel-control.is-collapsed .panel-toggle__label {
    display: none;
}

.panel-toggle__icon {
    font-size: 1.05rem;
    line-height: 1;
}

.panel-contenido {
    margin-top: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.panel-encabezado,
.informacion {
    background-color: var(--tarjeta);
    border-radius: 22px;
    border: 1px solid rgba(109, 86, 119, 0.12);
}

.panel-encabezado {
    padding: 1rem 1.1rem;
}

.panel-encabezado h1 {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 700;
}

.panel-encabezado p {
    margin: 0.45rem 0 0;
    font-size: 0.95rem;
    line-height: 1.45;
}

.informacion {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    padding: 1rem 1.1rem 1.1rem;
}

.informacion-controles {
    gap: 0.75rem;
}

.informacion p {
    margin: 0;
    font-size: 0.98rem;
    line-height: 1.45;
}

.grupo-campos {
    display: flex;
    gap: 0.7rem;
    flex-wrap: wrap;
}

.control-rango {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.95rem;
    font-weight: 600;
}

input,
select {
    width: 100%;
    padding: 0.72rem 0.85rem;
    border: 1px solid rgba(109, 86, 119, 0.22);
    border-radius: 14px;
    background-color: papayawhip;
    color: var(--lila-texto);
}

select {
    appearance: none;
}

.numi {
    width: 82px;
}

.butons {
    width: fit-content;
    min-width: 132px;
    border: none;
    border-radius: 14px;
    padding: 0.8rem 1.15rem;
    background-color: var(--lila-oscuro);
    color: #ffffff;
    cursor: pointer;
}

.butons-secundario {
    background-color: rgba(109, 86, 119, 0.18);
    color: var(--lila-texto);
}

.butons-secundario:hover,
.butons-secundario:focus-visible {
    background-color: rgba(109, 86, 119, 0.28);
}

#carga-algoritmo {
    display: none;
}

.tablero-area {
    min-width: 0;
}

.tablero-panel {
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tablero-scroll {
    flex: 0 1 auto;
    min-height: 0;
    height: clamp(420px, 72vh, 760px);
    overflow: auto;
    overscroll-behavior: contain;
    padding: clamp(0.75rem, 1.6vw, 1.1rem);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.8);
    scrollbar-gutter: stable both-edges;
    cursor: default;
}

#dibujo {
    min-width: 100%;
    min-height: 100%;
    width: max-content;
    display: block;
}

.tablero-stage {
    width: fit-content;
    height: fit-content;
    min-width: 100%;
    min-height: 100%;
    margin-inline: auto;
    display: grid;
    place-items: center;
}

.tablero-vacio {
    width: min(100%, 520px);
    padding: 1.5rem;
    border: 2px dashed rgba(109, 86, 119, 0.28);
    border-radius: 22px;
    text-align: center;
    background: rgba(255, 255, 255, 0.55);
    margin: auto;
}

.tablero-vacio p {
    margin: 0;
    font-size: 1rem;
}

canvas {
    display: block;
    max-width: none;
    height: auto;
    border-radius: 22px;
}

.informacion-controles input[type="range"] {
    width: 100%;
    padding: 0;
    border: none;
    background: transparent;
    accent-color: var(--lila-oscuro);
}

.informacion-controles output {
    min-width: 4.2rem;
    text-align: right;
}

.informacion-controles input[type="range"]:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.tablero-scroll.is-draggable {
    cursor: grab;
    touch-action: none;
}

.tablero-scroll.is-dragging {
    cursor: grabbing;
}

@media (max-width: 1200px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .panel-control,
    .panel-control.is-collapsed {
        width: 100%;
        position: static;
    }

    .panel-control.is-collapsed .panel-toggle__label {
        display: inline;
    }

    .panel-contenido {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.9rem;
    }

    .panel-encabezado {
        grid-column: 1 / -1;
    }

    .tablero-panel {
        min-height: auto;
    }
}

@media (max-width: 900px) {
    .panel-contenido {
        grid-template-columns: 1fr;
    }

    .tablero-scroll {
        height: clamp(360px, 58vh, 640px);
    }
}

@media (max-width: 720px) {
    .app-shell {
        padding: 0.8rem;
    }

    .grupo-campos {
        gap: 0.55rem;
    }

    .numi {
        width: calc(50% - 0.28rem);
        min-width: 0;
    }

    .butons,
    .butons-secundario {
        width: 100%;
    }

    .control-rango {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.3rem;
    }

    .informacion-controles output {
        text-align: left;
    }
}