/* ============================================================================
 * SI360 Cyber Range — Estilos de la Ruta práctica (Retos + Laboratorio) v3.1
 * ========================================================================== */
:root {
    --bg: #0d1117; --bg2: #161b22; --bg3: #21262d; --border: #30363d;
    --text: #e6edf3; --muted: #8b949e; --cyan: #39d2c0; --blue: #58a6ff;
    --red: #f85149; --green: #3fb950; --yellow: #d29922; --purple: #a371f7;
    --mono: 'JetBrains Mono', ui-monospace, Consolas, monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body { background: var(--bg); color: var(--text); font-family: 'Inter', system-ui, sans-serif; min-height: 100vh; line-height: 1.5; }
a { color: var(--blue); }
code { font-family: var(--mono); background: var(--bg3); padding: 1px 6px; border-radius: 4px; font-size: .88em; }

/* ---------- Encabezado ---------- */
.header { background: var(--bg2); border-bottom: 1px solid var(--border); padding: 12px 20px; display: flex; justify-content: space-between; align-items: center; gap: 12px; position: sticky; top: 0; z-index: 50; flex-wrap: wrap; }
.logo { font-size: 1rem; font-weight: 700; color: var(--cyan); letter-spacing: 1px; text-decoration: none; }
.logo span { color: var(--muted); font-weight: 400; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a { color: var(--muted); text-decoration: none; padding: 6px 12px; border-radius: 8px; font-size: .85rem; }
.nav a:hover, .nav a.active { background: var(--bg3); color: var(--text); }

.container { max-width: 1180px; margin: 0 auto; padding: 24px 16px 60px; }
.page-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 6px; }
.page-sub { color: var(--muted); font-size: .95rem; margin-bottom: 20px; max-width: 760px; }

/* ---------- Barra de sesión / progreso ---------- */
.session-bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; margin-bottom: 20px; font-size: .9rem; }
.session-bar .pts { font-weight: 700; color: var(--cyan); }
.overall { flex: 1; min-width: 200px; }
.bar { height: 8px; background: var(--bg3); border-radius: 4px; overflow: hidden; margin-top: 6px; }
.bar > div { height: 100%; background: linear-gradient(90deg, var(--cyan), var(--blue)); width: 0; transition: width .6s; }

/* ---------- Módulos ---------- */
.modulo { margin-bottom: 26px; scroll-margin-top: 80px; }
.modulo-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; margin-bottom: 10px; flex-wrap: wrap; }
.modulo-num { font-size: .72rem; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }
.modulo-title { font-size: 1.15rem; font-weight: 700; }
.modulo-prog { font-size: .8rem; color: var(--muted); min-width: 160px; }

/* ---------- Tarjeta de reto ---------- */
.reto { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 10px; overflow: hidden; }
.reto.solved { border-color: rgba(63,185,80,.5); }
.reto-head { width: 100%; background: none; border: 0; color: inherit; font: inherit; text-align: left; display: flex; align-items: center; gap: 12px; padding: 14px 16px; cursor: pointer; }
.reto-head:hover { background: rgba(88,166,255,.05); }
.reto-check { width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--border); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: .8rem; }
.reto.solved .reto-check { background: var(--green); border-color: var(--green); color: #0d1117; font-weight: 800; }
.reto-title { flex: 1; font-weight: 600; font-size: .95rem; }
.reto-code { font-family: var(--mono); font-size: .72rem; color: var(--muted); margin-right: 6px; }
.reto-meta { display: flex; gap: 8px; align-items: center; font-size: .75rem; color: var(--muted); flex-shrink: 0; }
.tag { padding: 2px 8px; border-radius: 10px; font-weight: 700; font-size: .7rem; border: 1px solid; }
.tag-lab { color: var(--purple); border-color: var(--purple); }
.tag-pts { color: var(--cyan); border-color: rgba(57,210,192,.5); }
.reto-body { display: none; padding: 0 16px 16px 54px; }
.reto.open .reto-body { display: block; }
.aprende { font-size: .82rem; color: var(--cyan); margin-bottom: 10px; }
.enunciado { white-space: pre-line; font-size: .92rem; margin-bottom: 12px; }
.material { position: relative; background: #010409; border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; font-family: var(--mono); font-size: .8rem; white-space: pre-wrap; word-break: break-all; color: #c9d1d9; margin-bottom: 12px; }
.mat-actions { position: absolute; top: 6px; right: 6px; display: flex; gap: 6px; }
.copy-btn { background: var(--bg3); border: 1px solid var(--border); color: var(--muted); font-size: .72rem; padding: 4px 9px; border-radius: 6px; cursor: pointer; font-family: inherit; }
.copy-btn.tool-send { color: #0d1117; background: var(--cyan); border-color: var(--cyan); font-weight: 700; }
.material { padding-top: 40px; }
.toolbox.flash { box-shadow: 0 0 0 2px var(--cyan); transition: box-shadow .3s; }
#tb-back { margin-top: 10px; display: none; }
.copy-btn:hover { color: var(--text); }
.pistas { margin-bottom: 12px; }
.pista { background: rgba(210,153,34,.08); border-left: 3px solid var(--yellow); padding: 8px 12px; border-radius: 0 6px 6px 0; font-size: .85rem; margin-bottom: 6px; }
.answer-row { display: flex; gap: 8px; flex-wrap: wrap; }
.answer-row input { flex: 1; min-width: 180px; background: var(--bg); border: 1px solid var(--border); color: var(--text); padding: 10px 12px; border-radius: 8px; font-family: var(--mono); font-size: .9rem; outline: none; }
.answer-row input:focus { border-color: var(--blue); }
.result { margin-top: 10px; font-size: .88rem; }
.result.ok { color: var(--green); }
.result.bad { color: var(--red); }
.explicacion { margin-top: 10px; background: rgba(63,185,80,.08); border: 1px solid rgba(63,185,80,.4); border-radius: 8px; padding: 12px 14px; font-size: .88rem; white-space: pre-line; }
.explicacion strong { color: var(--green); }

/* ---------- Botones ---------- */
.btn { padding: 9px 16px; border-radius: 8px; border: 1px solid transparent; font-weight: 600; cursor: pointer; font-size: .85rem; font-family: inherit; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #478cea; }
.btn-outline { background: transparent; border-color: var(--border); color: var(--muted); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.btn-sm { padding: 5px 10px; font-size: .78rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- Caja de herramientas ---------- */
.toolbox { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin-bottom: 26px; }
.toolbox h2 { font-size: 1rem; margin-bottom: 4px; }
.toolbox p { color: var(--muted); font-size: .82rem; margin-bottom: 10px; }
.toolbox textarea { width: 100%; min-height: 80px; background: #010409; color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 10px; font-family: var(--mono); font-size: .82rem; resize: vertical; }
.tool-buttons { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.tool-out { background: #010409; border: 1px dashed var(--border); border-radius: 8px; padding: 10px; font-family: var(--mono); font-size: .82rem; white-space: pre-wrap; word-break: break-all; min-height: 42px; color: var(--cyan); }

/* ---------- Laboratorio ---------- */
.lab-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.lab-term-col { position: sticky; top: 76px; }
.term { background: #010409; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.term-bar { background: var(--bg3); padding: 8px 12px; display: flex; gap: 6px; align-items: center; font-size: .75rem; color: var(--muted); }
.term-bar i { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
#term-out { height: 460px; overflow-y: auto; padding: 12px 14px 4px; font-family: var(--mono); font-size: .82rem; color: #c9d1d9; }
.tl { white-space: pre-wrap; word-break: break-word; min-height: 1.2em; }
.tp { color: var(--green); font-weight: 600; }
.terr { color: var(--red); }
.tinfo { color: var(--muted); }
.term-input-row { display: flex; gap: 8px; padding: 8px 14px 12px; font-family: var(--mono); font-size: .82rem; align-items: center; }
#term-prompt { color: var(--green); font-weight: 600; white-space: nowrap; }
#term-input { flex: 1; min-width: 0; background: transparent; border: 0; outline: none; color: var(--text); font-family: var(--mono); font-size: .82rem; }
.cheats { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 14px 12px; }
.cheat { background: var(--bg3); border: 1px solid var(--border); color: var(--muted); font-family: var(--mono); font-size: .72rem; padding: 3px 8px; border-radius: 6px; cursor: pointer; }
.cheat:hover { color: var(--text); border-color: var(--blue); }
.lab-side .reto-body { padding-left: 16px; }

/* ---------- Avisos ---------- */
.notice { background: rgba(88,166,255,.08); border: 1px solid rgba(88,166,255,.35); border-radius: 10px; padding: 12px 16px; font-size: .88rem; margin-bottom: 18px; }
.notice.warn { background: rgba(210,153,34,.08); border-color: rgba(210,153,34,.4); }

@media (max-width: 900px) {
    .lab-grid { grid-template-columns: minmax(0, 1fr); }
    .lab-term-col { position: static; }
    #term-out { height: 340px; }
}
@media (max-width: 600px) {
    .reto-body { padding-left: 16px; }
    .reto-meta .tag-lab { display: none; }
    .header { padding: 10px 12px; }
    .nav a { padding: 5px 8px; font-size: .78rem; }
}