/* Lab 4: misma guía del Día 3, sin terminal ni explorador. Pasos a la izquierda y trabajo a la derecha. */
.s2-main.lab4{max-width:1440px}
.s2-main.lab4 .s2-layout,.s2-main.lab4 .s2-layout.show-overview{grid-template-columns:250px minmax(0,1fr);gap:32px}
.s2-main.lab4 .l4-content{grid-column:2;display:grid;grid-template-columns:minmax(0,1fr);gap:24px;align-content:start;min-width:0;max-width:980px}
.s2-main.lab4 .l4-content>.s2-stage{grid-column:auto;max-width:none}
.s2-main.lab4 .workspace-sidebar{grid-column:1}
.s2-main.lab4 .l4-progress-note{margin:6px 0 0;font:13px/1.45 Carlito,sans-serif;color:var(--muted)}
.s2-main.lab4 .s2-sr{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.s2-main.lab4 code{overflow-wrap:anywhere}

/* Cabecera: menú «Laboratorios», identidad de GitHub y enlace de equipos solo para admins */
.header-actions .l4-identity{display:block;max-width:24ch;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;overflow-wrap:normal;word-break:normal}

.page-nav .l4-admin-link{gap:8px}
.page-nav .l4-admin-badge,.l4-who-badge{--badge-color:var(--line-strong);height:auto;padding:2px 8px;font:600 10px/1.5 Montserrat,sans-serif;letter-spacing:.02em;color:var(--ink);background:var(--soft);border:1px solid var(--line-strong)}
.page-nav .l4-admin-badge{border-style:dashed;border-color:var(--evaluation-label);color:var(--ink);background:color-mix(in srgb,var(--bright) 10%,var(--bg))}

/* Portada */
.s2-main.lab4 .overview{max-width:980px;grid-template-columns:minmax(0,1fr)}
.l4-session-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:24px 0 8px}
.l4-session-card{display:grid;align-content:start;gap:6px;padding:16px 18px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
.l4-session-card .l4-card-key{margin:0;font:600 12px/1.4 'IBM Plex Mono',monospace;color:var(--blue)}
.s2-main .overview .l4-session-card h2{margin:0;font:700 18px/1.3 Montserrat,sans-serif;color:var(--ink)}
.s2-main .overview .l4-session-card p{margin:0;font-size:15px;line-height:1.55}
.s2-main .overview .l4-session-card .l4-card-repo{margin-top:6px;font-size:14px;color:var(--muted)}
.l4-roles-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:8px;margin:8px 0 8px}
.l4-roles-table{font:15px/1.5 Carlito,sans-serif;color:var(--text);min-width:560px}
.l4-roles-table th,.l4-roles-table td{padding:9px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.l4-roles-table thead th{font:600 11px/1.4 Montserrat,sans-serif;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);background:var(--soft)}
.l4-roles-table tbody th{font:600 14px/1.5 'IBM Plex Mono',monospace;color:var(--ink);white-space:nowrap}
.l4-roles-table tbody tr:last-child>*{border-bottom:0}
.l4-roles-table code{font-size:13px}

/* Paso */
.s2-main.lab4 .l4-who{margin:4px 0 0}
.l4-who-badge{font-size:11px;padding:3px 10px}
.l4-field{display:grid;gap:4px;font:600 11px/1.4 Montserrat,sans-serif;letter-spacing:.03em;text-transform:uppercase;color:var(--muted)}
.s2-main.lab4 .l4-field .select{min-height:42px;height:42px;width:250px;border-color:var(--line-strong);background-color:var(--bg);color:var(--ink);font:14px/1.4 Carlito,sans-serif;text-transform:none;letter-spacing:0}

.l4-links{display:flex;flex-wrap:wrap;gap:8px}
.s2-main.lab4 .l4-links .btn{min-height:42px;font:600 12px Montserrat,sans-serif}
.s2-main.lab4 .l4-links .btn svg{flex:none}
.s2-main.lab4 .l4-link-disabled{opacity:.55;cursor:not-allowed;border-style:dashed}

.s2-main.lab4 .s2-commands li{grid-template-columns:24px minmax(0,1fr) auto}
.s2-main.lab4 .s2-commands li[data-kind='file']::before{content:'{}';font-size:12px}
.s2-main.lab4 .s2-commands li[data-kind='note']::before{content:'›'}
.s2-main.lab4 .l4-cmd{display:grid;gap:4px;min-width:0}
.s2-main.lab4 .l4-cmd-label{font:600 11px/1.4 Montserrat,sans-serif;letter-spacing:.03em;color:color-mix(in srgb,var(--mist) 80%,var(--navy))}
.s2-main.lab4 .s2-commands code{font-size:13px}
.s2-main.lab4 .s2-commands .l4-placeholder{color:color-mix(in srgb,var(--bright) 70%,var(--white));font-style:italic}
.s2-main.lab4 .l4-file{margin:0;padding:8px 10px;border:1px solid var(--code-btn-line);border-radius:4px;background:color-mix(in srgb,var(--white) 4%,var(--navy));overflow:auto;max-height:260px}
.s2-main.lab4 .l4-file code{white-space:pre;font-size:12.5px;max-height:none;padding:0}
.s2-main.lab4 .s2-command-actions{gap:6px}
.s2-main.lab4 .s2-command-actions .btn{width:32px;min-height:32px;background:var(--code-btn);color:var(--code-fg);border-color:var(--code-btn-line)}
.s2-main.lab4 .s2-command-actions .command-explain-action{width:32px}

.l4-check{padding:14px 16px;border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:4px 8px 8px 4px}
.s2-main.lab4 .l4-check h2{font:600 12px/1.5 Montserrat,sans-serif;text-transform:uppercase;letter-spacing:.06em;color:var(--blue);margin:0 0 6px}
.l4-check ul{margin:0;padding-left:20px;font:16px/1.6 Carlito,sans-serif;color:var(--text)}
.s2-main.lab4 #result-bar .s2-panel{max-width:1440px}
.s2-main.lab4 #save-status{margin:0;font:13px/1.4 Carlito,sans-serif;color:var(--muted);flex:none;max-width:34ch}
.s2-main.lab4 #next:disabled{background:var(--soft);border-color:var(--line);color:var(--muted);opacity:1}
.s2-main.lab4 #prev:disabled{opacity:.5;cursor:not-allowed}

/* Vista de equipos dentro del mismo main */
.s2-main.lab4:has(#teams-view:not([hidden])){max-width:1800px;padding-bottom:32px}
.l4-teams-view:focus{outline:none}
.l4-teams-loading{font:16px/1.6 Carlito,sans-serif;color:var(--muted);padding:24px 0}

@media(max-width:1100px) and (min-width:801px){.s2-main.lab4 .s2-layout,.s2-main.lab4 .s2-layout.show-overview{grid-template-columns:210px minmax(0,1fr);gap:20px}}
@media(max-width:800px){
 .s2-main.lab4 .s2-layout,.s2-main.lab4 .s2-layout.show-overview{grid-template-columns:1fr;gap:16px}
 .s2-main.lab4 .l4-content,.s2-main.lab4 .workspace-sidebar{grid-column:1}
 .l4-session-cards{grid-template-columns:1fr}
 .l4-field,.s2-main.lab4 .l4-field .select{width:100%}
 .s2-main.lab4 .l4-field .select{min-height:44px;height:44px}
 .s2-main.lab4 .s2-command-actions .btn,.s2-main.lab4 .s2-command-actions .command-explain-action{width:44px;min-height:44px}
 .s2-main.lab4 #save-status{flex-basis:100%;max-width:none}
 .page-nav .l4-admin-badge{display:none}
}

/* El encabezado y el comando ocupan filas distintas dentro del bloque. */
.s2-main.lab4 .s2-commands li>.l4-cmd{display:grid;grid-template-columns:minmax(0,1fr);gap:10px;align-items:start}
.s2-main.lab4 .l4-cmd-label{display:block;margin:0;font:600 12px/1.5 Montserrat,sans-serif;letter-spacing:0;color:var(--code-fg)}
.s2-main.lab4 .l4-command-code{display:block;margin:0;padding:0;border:0;background:none;min-width:0;white-space:pre-wrap;overflow-wrap:anywhere}
.s2-main.lab4 .l4-command-code code{display:block;margin:0;padding:0;white-space:pre-wrap;line-height:1.8}
/* El bloque de terminal conserva un fondo oscuro en ambos temas. */
.s2-main.lab4 .s2-commands{--code-fg:var(--mist);--code-btn:color-mix(in srgb,var(--white) 8%,var(--navy));--code-btn-line:color-mix(in srgb,var(--mist) 30%,var(--navy))}
.s2-main.lab4 #commands .flag{color:var(--bright)}

/* Equipo asignado por el administrador: solo lectura. El participante solo elige su rol. */
.l4-muted{color:var(--muted)}
.l4-facts{display:grid;margin:0}
.l4-facts>div{display:grid;align-content:start;gap:4px;min-width:0}
.l4-facts dt{font:600 11px/1.4 Montserrat,sans-serif;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
.l4-facts dd{margin:0;min-width:0;font:700 17px/1.35 Montserrat,sans-serif;color:var(--ink);overflow-wrap:anywhere}
.l4-facts dd code{font:500 14px/1.5 'IBM Plex Mono',monospace;color:var(--ink)}
.l4-handle{font:500 15px/1.4 'IBM Plex Mono',monospace;color:var(--blue);text-decoration:none}
.l4-handle:hover{text-decoration:underline}
.l4-handle{display:inline-grid;max-width:100%;gap:2px}
.l4-handle-name{font:700 15px/1.35 Montserrat,sans-serif;color:var(--ink);overflow-wrap:anywhere}
.l4-handle-login{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.l4-you{font:600 12px/1.4 Montserrat,sans-serif;color:var(--muted)}
[data-state='pending'] .l4-facts dd,[data-state='error'] .l4-facts dd,[data-state='loading'] .l4-facts dd{font-weight:600;font-size:15px;color:var(--muted)}

/* Participación: líder relleno, integrante con borde, pendiente con trazo discontinuo. */
.s2-main.lab4 .l4-pos-badge{height:auto;min-height:26px;padding:3px 10px;border-radius:999px;font:600 12px/1.4 Montserrat,sans-serif;letter-spacing:0;white-space:nowrap;border:1px solid var(--line-strong);background:transparent;color:var(--muted)}
.s2-main.lab4 .l4-pos-badge[data-position='leader']{background:var(--blue);border-color:var(--blue);color:var(--on-blue)}
.s2-main.lab4 .l4-pos-badge[data-position='member']{background:color-mix(in srgb,var(--blue) 10%,var(--bg));border-color:var(--blue);color:var(--ink)}
.s2-main.lab4 .l4-pos-badge:is([data-position='pending'],[data-position='error'],[data-position='loading']){border-style:dashed}

/* Equipo y elección de rol en «Antes de empezar». */
.l4-team-panel[hidden]{display:none}
.l4-team-panel{display:grid;gap:14px;padding:16px 20px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
.l4-team-panel:is([data-state='pending'],[data-state='error']){background:var(--soft)}
.l4-team-panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.s2-main.lab4 .l4-team-panel h2{margin:2px 0 0;font:700 18px/1.3 Montserrat,sans-serif;color:var(--ink)}
.s2-main.lab4 .l4-eyebrow{margin:0;font:600 11px/1.4 Montserrat,sans-serif;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.s2-main.lab4 .l4-refresh{min-height:36px;padding:6px 12px;font:600 12px Montserrat,sans-serif}
.l4-team-panel .l4-facts{grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);padding-top:12px}
.l4-team-panel .l4-facts>div{padding:0 16px;border-left:1px solid var(--line)}
.l4-team-panel .l4-facts>div:first-child{padding-left:0;border-left:0}
.l4-roles-pick{min-width:0;margin:0;padding:12px 0 0;border:0;border-top:1px solid var(--line)}
.l4-roles-pick legend{float:left;width:100%;margin-bottom:6px;padding:0;font:600 11px/1.4 Montserrat,sans-serif;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
.l4-roles-pick legend .l4-muted{text-transform:none;letter-spacing:0;font-weight:500}
.l4-roles-pick .l4-field{clear:both;min-width:0;padding:8px 10px;border:1px solid transparent;border-radius:6px}
.s2-main.lab4 .l4-roles-pick .l4-field .select{width:100%}
.s2-main.lab4 .l4-team-note{margin:0;font:14px/1.5 Carlito,sans-serif;color:var(--text)}
.s2-main.lab4 .l4-team-note:is(:empty,[hidden]){display:none}
.l4-team-note a{color:var(--blue)}
.l4-team-note code{font:13px/1.5 'IBM Plex Mono',monospace;color:var(--ink)}
.l4-team-note strong{color:var(--ink)}

/* Tarjetas S1/S2: repo del equipo y accesos */
.l4-pending-code{padding:1px 6px;border:1px dashed var(--line-strong);border-radius:4px;font:13px/1.5 'IBM Plex Mono',monospace;color:var(--muted);background:transparent}
.l4-card-repo code{font-size:13px}
.l4-card-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.l4-card-actions:empty{display:none}
.s2-main.lab4 .l4-card-actions .btn{min-height:36px;padding:6px 12px;gap:6px;font:600 12px Montserrat,sans-serif}
.s2-main.lab4 .l4-card-actions .btn svg{flex:none}

/* Portada: cómo trabaja el equipo */
.l4-howto{display:grid;gap:12px;margin:8px 0 24px}
.s2-main.lab4 .overview .l4-howto h2{margin:16px 0 0}
.s2-main.lab4 .overview .l4-howto h3{margin:0;font:700 15px/1.35 Montserrat,sans-serif;color:var(--ink)}
.s2-main.lab4 .overview .l4-howto-sub{margin-top:8px}
.l4-flow{display:grid;gap:8px;margin:0;padding:0;list-style:none;counter-reset:flow}
.l4-flow li{position:relative;display:block;min-height:24px;padding-left:38px;counter-increment:flow;font:16px/1.55 Carlito,sans-serif;color:var(--text)}
.l4-flow li::before{content:counter(flow);position:absolute;top:0;left:0;display:grid;place-items:center;width:24px;height:24px;border-radius:999px;background:var(--soft);border:1px solid var(--line-strong);font:600 12px/1 Montserrat,sans-serif;color:var(--ink)}
.l4-flow strong{color:var(--ink)}

@media(max-width:800px){
 .l4-team-panel{padding:14px 16px}
 .s2-main.lab4 .l4-refresh,.s2-main.lab4 .l4-card-actions .btn{min-height:44px}
 .l4-team-panel .l4-facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 0}
 .l4-team-panel .l4-facts>div:nth-child(odd){padding-left:0;border-left:0}
 .l4-team-panel .l4-facts>div:last-child{grid-column:1 / -1}
 .header-actions .l4-identity{max-width:18ch}
}
@media(max-width:480px){
 .l4-team-panel .l4-facts{grid-template-columns:1fr}
 .l4-team-panel .l4-facts>div{padding:0;border-left:0}
 .l4-team-panel-head{flex-wrap:wrap}
 .l4-card-actions .btn{flex:1 1 auto;justify-content:center}
}