/* Panel de la seccion "Migrate from any legacy panel".
   Adapta el componente "Loading Progress" (CodePen NPWxbBr) al marco
   oscuro/violeta del panel EPG. Todo va prefijado con #migration-system
   por consistencia con el patron de epg-panel.css. */

#migration-system {
    /* Curvas de easing propias — las del navegador se sienten flojas.
       Ver emil-design-eng: los ease-out fuertes dan sensacion de respuesta. */
    --mig-ease-out: cubic-bezier(.23, 1, .32, 1);
    --mig-ease-in-out: cubic-bezier(.77, 0, .175, 1);
}

#migration-system .mig-window-container {
    --mig-pad: 20px;
    --mig-step-h: 66px;
    --mig-steps: 5;

    width: 589px;
    height: calc(58px + 4px + var(--mig-step-h) * var(--mig-steps) + 41px + var(--mig-pad) * 2 + 2px);
    margin: auto;
    position: relative;
    opacity: 1;
}

#migration-system .mig-window-inner {
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    padding: var(--mig-pad);
    border: 1px solid #23234f;
    border-radius: 14px;
    background:
        radial-gradient(120% 90% at 100% 0%, rgba(191, 92, 245, .10), transparent 55%),
        radial-gradient(90% 90% at 0% 100%, rgba(96, 55, 255, .10), transparent 55%),
        #090821;
    box-shadow: 0 0 0 1px rgba(96, 55, 255, .06),
                0 24px 70px -24px rgba(96, 55, 255, .5),
                inset 0 1px 0 rgba(255, 255, 255, .04);
    position: relative;
}

/* Marco interior con degradado sutil que hace de "chip" */
#migration-system .mig-window-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid #20204a;
    border-radius: 12px;
    background:
        linear-gradient(180deg, #0c0d29 0%, #090b20 100%);
    overflow: hidden;
    position: relative;
}

/* Header */
#migration-system .mig-window-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: none;
    height: 58px;
    padding: 0 16px 0 22px;
    border-bottom: 1px solid #2f3370;
    background:
        linear-gradient(180deg, #171947 0%, #10122f 100%);
    position: relative;
}

/* Barra de progreso global bajo el header (avance del source actual) */
#migration-system .mig-progress {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 2px;
    background: rgba(191, 92, 245, .08);
    overflow: hidden;
}

#migration-system .mig-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #8b7cf8 0%, #bf5cf5 60%, #f7a340 100%);
    box-shadow: 0 0 10px rgba(191, 92, 245, .55);
    transition: width .45s var(--mig-ease-out);
    will-change: width;
}

#migration-system .mig-window-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-inter), ui-sans-serif, system-ui, sans-serif;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -.01em;
    color: #fff;
}

#migration-system .mig-window-title svg {
    width: 16px;
    height: 16px;
    flex: none;
    color: #bf5cf5;
    filter: drop-shadow(0 0 6px rgba(191, 92, 245, .5));
}

/* Chip de "source" (Xtream Codes / UI / One Stream / XUI One / Master).
   Cuando cambia de source, se cross-fade con blur (skill: use blur to mask
   imperfect transitions cuando cross-fade de dos textos). */
#migration-system .mig-source {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    height: 30px;
    padding: 0 12px;
    border: 1px solid #2d3061;
    border-radius: 999px;
    background:
        linear-gradient(180deg, #23264d 0%, #16183a 100%);
    font-family: var(--font-inter), ui-sans-serif, system-ui, sans-serif;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .01em;
    color: #fff;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06),
                0 1px 0 rgba(0, 0, 0, .4);
    transition: transform .2s var(--mig-ease-out),
                border-color .2s var(--mig-ease-out);
}

#migration-system .mig-source-name {
    display: inline-block;
    transition: opacity .18s var(--mig-ease-out),
                filter .18s var(--mig-ease-out),
                transform .18s var(--mig-ease-out);
    will-change: opacity, filter, transform;
}

#migration-system .mig-source-name.is-swap {
    opacity: 0;
    filter: blur(3px);
    transform: translateY(-2px);
}

#migration-system .mig-source-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #f7a340;
    position: relative;
    box-shadow: 0 0 0 3px rgba(247, 163, 64, .12);
}

#migration-system .mig-source-dot::after {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: 50%;
    background: #f7a340;
    animation: mig-pulse 1.6s var(--mig-ease-out) infinite;
}

@keyframes mig-pulse {
    0%   { transform: scale(1);   opacity: .55; }
    70%  { transform: scale(2.6); opacity: 0;   }
    100% { transform: scale(2.6); opacity: 0;   }
}

/* Cuerpo con los pasos */
#migration-system .mig-body {
    flex: 1 1 auto;
    min-height: 0;
    padding: 18px 24px 16px;
    overflow: hidden;
    position: relative;
}

/* Timeline vertical detras de los iconos de pasos.
   Pinta desde el centro del primer icono al centro del ultimo.
   El "fill" (.mig-timeline-progress) crece hacia abajo segun el paso activo.
   El left se calcula: padding-body (24px) + padding-step-lateral (4px)
                       + medio icono (9px) - medio ancho de linea (0.75px). */
#migration-system .mig-timeline {
    position: absolute;
    top: 30px;
    bottom: 30px;
    left: calc(24px + 4px + 9px - 0.75px);
    width: 1.5px;
    background: rgba(107, 109, 143, .25);
    border-radius: 2px;
    overflow: hidden;
    pointer-events: none;
}

#migration-system .mig-timeline-fill {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0%;
    background: linear-gradient(180deg, #4fbe5b 0%, #6acf74 100%);
    box-shadow: 0 0 6px rgba(79, 190, 91, .55);
    transition: height .45s var(--mig-ease-out);
    will-change: height;
}

#migration-system .mig-steps {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 100%;
    height: 100%;
    position: relative;
}

#migration-system .mig-step {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 6px 4px;
    box-sizing: border-box;
    transition: opacity .3s var(--mig-ease-out),
                transform .3s var(--mig-ease-out);
    will-change: opacity, transform;
}

/* Contenedor del icono: burbuja circular en el fondo del panel para
   "cortar" la linea del timeline y darle acabado. */
#migration-system .mig-step-icon {
    flex: none;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    color: #4a4d70;
    background: #090b20;
    border-radius: 50%;
    position: relative;
    z-index: 1;
    transition: color .25s var(--mig-ease-out),
                transform .25s var(--mig-ease-out);
}

#migration-system .mig-step-icon svg {
    width: 100%;
    height: 100%;
    display: block;
}

#migration-system .mig-step--progress .mig-step-icon {
    color: #f7a340;
    transform: scale(1.06);
    filter: drop-shadow(0 0 6px rgba(247, 163, 64, .45));
}

#migration-system .mig-step--done .mig-step-icon {
    color: #4fbe5b;
    filter: drop-shadow(0 0 4px rgba(79, 190, 91, .35));
}

/* Textos */
#migration-system .mig-step-body {
    min-width: 0;
    padding-top: 1px;
}

#migration-system .mig-step-title {
    font-family: var(--font-inter), ui-sans-serif, system-ui, sans-serif;
    font-size: 14.5px;
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -.005em;
    color: #ebe9fe;
    margin-bottom: 3px;
    transition: color .25s var(--mig-ease-out);
}

#migration-system .mig-step--waiting .mig-step-title {
    color: #b6b8d3;
}

#migration-system .mig-step-info {
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    font-size: 11.5px;
    line-height: 1.4;
    color: #7c7fa5;
    min-height: 16px;
    letter-spacing: -.005em;
}

#migration-system .mig-step-info .mig-count {
    color: #bf5cf5;
    font-variant-numeric: tabular-nums;
    font-weight: 600;
}

/* Ellipsis animados con clase; sale del original de CodePen pero
   con timing mas natural */
#migration-system .mig-ellipsis {
    display: inline-flex;
    margin-left: 2px;
    color: #a5a7c8;
}

#migration-system .mig-ellipsis-dot {
    animation: mig-dot-1 1.4s steps(1, end) infinite;
    visibility: hidden;
}
#migration-system .mig-ellipsis-dot:nth-child(2) { animation-name: mig-dot-2; }
#migration-system .mig-ellipsis-dot:nth-child(3) { animation-name: mig-dot-3; }

@keyframes mig-dot-1 {
    from                { visibility: hidden; }
    25%, to             { visibility: visible; }
}
@keyframes mig-dot-2 {
    from, 25%           { visibility: hidden; }
    50%, to             { visibility: visible; }
}
@keyframes mig-dot-3 {
    from, 50%           { visibility: hidden; }
    75%, to             { visibility: visible; }
}

/* Spinner del estado in-progress: SVG con arco rotando */
#migration-system .mig-spinner {
    width: 100%;
    height: 100%;
    animation: mig-spin 1s linear infinite;
    transform-origin: center;
}

#migration-system .mig-spinner-track {
    stroke: currentColor;
    stroke-width: 2;
    opacity: .18;
    fill: none;
}

#migration-system .mig-spinner-arc {
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-dasharray: 40 60;
    fill: none;
}

@keyframes mig-spin {
    to { transform: rotate(360deg); }
}

/* Footer */
#migration-system .mig-window-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: none;
    height: 41px;
    padding: 0 24px 0 22px;
    border-top: 1px solid #13143f;
    background:
        linear-gradient(180deg, #10122e 0%, #0c0d24 100%);
    font-family: var(--font-inter), ui-sans-serif, system-ui, sans-serif;
    font-size: 11px;
    color: #c0c3da;
}

#migration-system .mig-status {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    letter-spacing: -.005em;
}

#migration-system .mig-status i {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #4fbe5b;
    position: relative;
    box-shadow: 0 0 0 3px rgba(79, 190, 91, .12);
}

#migration-system .mig-status i::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: #4fbe5b;
    animation: mig-pulse 2s var(--mig-ease-out) infinite;
}

#migration-system .mig-meta {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    font-variant-numeric: tabular-nums;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    font-size: 10.5px;
    color: #a5a7c8;
    letter-spacing: -.01em;
}

#migration-system .mig-meta-sep {
    width: 1px;
    height: 12px;
    background: #2a2c55;
    display: inline-block;
}

#migration-system .mig-meta strong {
    color: #ebe9fe;
    font-weight: 600;
    margin-right: 4px;
}

/* Header de la seccion (columna izquierda) */
.migration-header {
    float: left;
    width: 50%;
    margin-bottom: 2.5rem;
}

.migration-title {
    margin-top: 2rem !important;
}

@media screen and (max-width: 990px) {
    #migration-system .mig-window-container {
        --mig-pad: 12px;
        --mig-step-h: 60px;

        width: 322px;
        height: calc(48px + 4px + var(--mig-step-h) * var(--mig-steps) + 34px + var(--mig-pad) * 2 + 2px);
    }
    #migration-system .mig-window-header { height: 48px; padding: 0 14px 0 16px; }
    #migration-system .mig-window-title  { font-size: 13px; gap: 10px; }
    #migration-system .mig-source        { height: 26px; padding: 0 10px; font-size: 11px; gap: 7px; }
    #migration-system .mig-body          { padding: 14px 14px 12px; }
    #migration-system .mig-timeline      { left: calc(14px + 4px + 9px - 0.75px); top: 26px; bottom: 26px; }
    #migration-system .mig-step-title    { font-size: 13px; }
    #migration-system .mig-step-info     { font-size: 10.5px; }
    #migration-system .mig-window-footer { height: 34px; padding: 0 14px; font-size: 10px; }
    #migration-system .mig-meta          { gap: 10px; font-size: 9.5px; }

    .migration-header {
        width: 80%;
    }
    .migration-title,
    .migration-desc {
        text-align: center;
    }
}

/* Respeta preferencias de motion reducido: se quitan movimientos, pero
   se dejan los cambios de color y estado por comprension. */
@media (prefers-reduced-motion: reduce) {
    #migration-system .mig-source-dot::after,
    #migration-system .mig-status i::after {
        animation: none;
    }
    #migration-system .mig-spinner {
        animation-duration: 3s;
    }
    #migration-system .mig-progress-fill,
    #migration-system .mig-timeline-fill,
    #migration-system .mig-step,
    #migration-system .mig-step-icon,
    #migration-system .mig-source-name {
        transition-duration: 0s;
    }
}