/* ============================================================
   curso-interactivo.css — componentes con estado de los cursos
   ------------------------------------------------------------
   Se carga DESPUES de curso.css y reutiliza sus tokens
   (--bg --panel --panel-2 --line --line-soft --green --green-2
    --green-dim --green-faint --amber --red --text --muted
    --faint --mono). No introduce ningun color nuevo: los dos
   acentos extra (#5cc8e8 azul, #a98bf0 violeta) ya existian en
   curso.css para .ondevice y .reading .rk.repo.

   Prefijo ix- en todo para no colisionar con las clases del
   sitio (ojo: .lab-card ya existe en styles.css para el home).
   ============================================================ */

:root {
    --ix-blue: #5cc8e8;
    --ix-violet: #a98bf0;
}

/* ============================================================
   avisos globales
   ============================================================ */

.ix-banner {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 900;
    padding: 0.9rem 1.2rem;
    font-family: var(--mono);
    font-size: 0.82rem;
    text-align: center;
    background: var(--panel);
    border-top: 1px solid var(--line);
    color: var(--muted);
}

.ix-banner-error {
    border-top-color: var(--red);
    color: #d8b3ae;
}

/* ============================================================
   bloques de contexto: por que importa / ataque / defensa
   Variantes de .note y .warn que ya define curso.css.
   ============================================================ */

.ix-why {
    border-left-color: var(--ix-blue);
}

.ix-why .tag {
    color: var(--ix-blue);
}

.ix-attack {
    background: rgba(255, 107, 94, 0.05);
    border: 1px solid rgba(255, 107, 94, 0.22);
    border-left: 3px solid var(--red);
    border-radius: 4px;
    padding: 1rem 1.2rem;
    margin: 1.6rem 0;
}

.ix-attack .tag {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--red);
    display: block;
    margin-bottom: 0.5rem;
}

.ix-attack p,
.ix-attack li {
    color: #d8b3ae;
    font-size: 0.93rem;
    line-height: 1.65;
}

.ix-defense {
    background: var(--green-faint);
    border: 1px solid var(--line);
    border-left: 3px solid var(--green);
    border-radius: 4px;
    padding: 1rem 1.2rem;
    margin: 1.6rem 0;
}

.ix-defense .tag {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--green);
    display: block;
    margin-bottom: 0.5rem;
}

.ix-defense p,
.ix-defense li {
    color: var(--muted);
    font-size: 0.93rem;
    line-height: 1.65;
}

/* ============================================================
   diagramas y placeholders de imagen
   ============================================================ */

.ix-diagram {
    margin: 1.8rem 0;
    padding: 1.2rem;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 4px;
    overflow-x: auto;
}

.ix-diagram svg {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

.ix-diagram figcaption {
    font-family: var(--mono);
    font-size: 0.74rem;
    color: var(--faint);
    text-align: center;
    margin-top: 0.9rem;
}

.ix-diagram details {
    margin-top: 1rem;
    border-top: 1px solid var(--line-soft);
    padding-top: 0.8rem;
}

.ix-diagram summary {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--faint);
    cursor: pointer;
}

.ix-diagram summary:hover {
    color: var(--green);
}

.ix-imgph {
    margin: 1.8rem 0;
    padding: 1.4rem;
    border: 1px dashed var(--line);
    border-radius: 4px;
    background: var(--panel-2);
}

.ix-imgph .tag {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--amber);
    display: block;
    margin-bottom: 0.6rem;
}

.ix-imgph p {
    color: var(--faint);
    font-family: var(--mono);
    font-size: 0.82rem;
    line-height: 1.65;
    margin: 0;
}

/* ============================================================
   laboratorio
   ============================================================ */

.ix-lab {
    margin: 2rem 0;
    background: var(--panel);
    border: 1px solid var(--line);
    border-left: 3px solid var(--green);
    border-radius: 4px;
    overflow: hidden;
}

.ix-lab-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem 1rem;
    padding: 0.85rem 1.2rem;
    background: var(--panel-2);
    border-bottom: 1px solid var(--line);
    font-family: var(--mono);
    font-size: 0.74rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--green);
}

.ix-lab-id {
    color: var(--faint);
    letter-spacing: 0.04em;
    text-transform: none;
}

.ix-lab-body {
    padding: 1.2rem;
}

.ix-lab-meta {
    display: grid;
    gap: 0.5rem;
    margin-bottom: 1.1rem;
    font-family: var(--mono);
    font-size: 0.8rem;
}

.ix-lab-meta div {
    display: flex;
    gap: 0.6rem;
    color: var(--muted);
}

.ix-lab-meta b {
    color: var(--green);
    font-weight: 500;
    min-width: 9ch;
}

.ix-lab-warn {
    margin: 1rem 0;
    padding: 0.7rem 0.9rem;
    border: 1px solid rgba(255, 195, 77, 0.3);
    border-left: 3px solid var(--amber);
    border-radius: 3px;
    background: rgba(255, 195, 77, 0.05);
    font-size: 0.86rem;
    color: #e0cfa4;
}

.ix-cmds {
    display: grid;
    gap: 0.5rem;
    margin: 1.1rem 0;
}

.ix-cmd {
    display: block;
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--text);
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 3px;
    padding: 0.6rem 0.8rem;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.ix-cmd::before {
    content: "$ ";
    color: var(--green);
}

.ix-cmd:hover {
    border-color: var(--green);
    background: var(--green-faint);
}

.ix-cmd.is-copied {
    border-color: var(--green);
    background: var(--green-dim);
}

/* ============================================================
   terminal simulada
   ============================================================ */

.ix-term {
    margin: 1.6rem 0;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 4px;
    overflow: hidden;
    font-family: var(--mono);
    font-size: 0.84rem;
}

.ix-term-bar {
    padding: 0.5rem 0.9rem;
    background: var(--panel);
    border-bottom: 1px solid var(--line);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--faint);
}

.ix-term-body {
    padding: 0.9rem 1rem;
    line-height: 1.75;
    overflow-x: auto;
}

.ix-term-in {
    color: var(--text);
    display: block;
}

.ix-term-in::before {
    content: "$ ";
    color: var(--green);
}

.ix-term-out {
    color: var(--muted);
    display: block;
    white-space: pre-wrap;
}

.ix-term-err {
    color: #d8b3ae;
    display: block;
    white-space: pre-wrap;
}

/* ============================================================
   ejercicios por dificultad
   ============================================================ */

.ix-ex {
    margin: 1.6rem 0;
    padding: 1.1rem 1.3rem 1.2rem;
    background: var(--panel);
    border: 1px solid var(--line);
    border-left: 3px solid var(--amber);
    border-radius: 4px;
}

.ix-ex-badge {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--amber);
    border: 1px solid var(--line);
    border-radius: 2px;
    padding: 0.22rem 0.5rem;
    margin-bottom: 0.7rem;
}

.ix-ex h4 {
    font-size: 1.05rem;
    margin: 0 0 0.6rem;
}

.ix-ex p {
    font-size: 0.94rem;
    color: var(--muted);
    line-height: 1.65;
    margin-bottom: 0.8rem;
}

.ix-ex[data-diff="facil"] { border-left-color: var(--green); }
.ix-ex[data-diff="facil"] .ix-ex-badge { color: var(--green); }

.ix-ex[data-diff="medio"] { border-left-color: var(--amber); }
.ix-ex[data-diff="medio"] .ix-ex-badge { color: var(--amber); }

.ix-ex[data-diff="dificil"] { border-left-color: #e08a5a; }
.ix-ex[data-diff="dificil"] .ix-ex-badge { color: #e08a5a; }

.ix-ex[data-diff="red"] { border-left-color: var(--red); }
.ix-ex[data-diff="red"] .ix-ex-badge { color: var(--red); }

.ix-ex[data-diff="blue"] { border-left-color: var(--ix-blue); }
.ix-ex[data-diff="blue"] .ix-ex-badge { color: var(--ix-blue); }

.ix-ex[data-diff="arch"] { border-left-color: var(--ix-violet); }
.ix-ex[data-diff="arch"] .ix-ex-badge { color: var(--ix-violet); }

.ix-ex[data-diff="reto"] { border-left-color: var(--ix-violet); }
.ix-ex[data-diff="reto"] .ix-ex-badge { color: var(--ix-violet); }

.ix-ex[data-state="solved"] {
    background: var(--green-faint);
}

/* pistas */

.ix-hints {
    margin: 1rem 0 0;
    display: grid;
    gap: 0.6rem;
}

.ix-hint {
    padding: 0.7rem 0.9rem;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-left: 3px solid var(--faint);
    border-radius: 3px;
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.6;
}

.ix-hint::before {
    content: attr(data-hint-label);
    display: block;
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--faint);
    margin-bottom: 0.35rem;
}

/* solucion */

.ix-solution {
    margin-top: 1rem;
    padding: 1rem 1.1rem;
    background: var(--green-faint);
    border: 1px solid var(--line);
    border-left: 3px solid var(--green);
    border-radius: 3px;
}

.ix-solution .tag {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--green);
    display: block;
    margin-bottom: 0.6rem;
}

.ix-solution p {
    color: var(--muted);
    margin-bottom: 0.7rem;
}

.ix-answer-key {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--faint);
    border-top: 1px solid var(--line-soft);
    padding-top: 0.7rem;
    margin: 0.6rem 0 0;
}

.ix-answer-key b {
    color: var(--green);
    font-weight: 500;
}

/* ============================================================
   botones
   ============================================================ */

.ix-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1rem;
}

.ix-btn,
.ix-hint-btn,
.ix-solution-btn,
.ix-solved-btn,
.ix-lab-done,
.ix-complete,
.ix-quiz-retry,
.ix-q-check,
.ix-card-flip,
.ix-grade,
.ix-giscus-load,
.ix-copy {
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    color: var(--muted);
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 3px;
    padding: 0.5rem 0.9rem;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.ix-btn:hover,
.ix-hint-btn:hover,
.ix-solution-btn:hover,
.ix-solved-btn:hover,
.ix-lab-done:hover,
.ix-complete:hover,
.ix-quiz-retry:hover,
.ix-q-check:hover,
.ix-card-flip:hover,
.ix-grade:hover,
.ix-giscus-load:hover,
.ix-copy:hover {
    border-color: var(--green);
    color: var(--green);
}

.ix-btn:disabled,
.ix-giscus-load:disabled,
.ix-q-check:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    border-color: var(--line);
    color: var(--faint);
}

.ix-solved-btn.is-done,
.ix-lab-done.is-done,
.ix-complete.is-done,
.ix-copy.is-copied {
    border-color: var(--green);
    color: var(--green);
    background: var(--green-dim);
}

.ix-solution-btn {
    border-color: rgba(255, 195, 77, 0.35);
    color: var(--amber);
}

.ix-complete {
    display: inline-block;
    margin: 1.6rem 0 0;
    padding: 0.7rem 1.2rem;
    font-size: 0.82rem;
}

/* ============================================================
   cuestionarios
   ============================================================ */

.ix-quiz {
    margin: 1.8rem 0;
    padding: 1.2rem 1.3rem;
    background: var(--panel);
    border: 1px solid var(--line);
    border-left: 3px solid var(--ix-blue);
    border-radius: 4px;
}

.ix-quiz > .tag {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ix-blue);
    display: block;
    margin-bottom: 0.9rem;
}

.ix-q {
    padding: 1rem 0;
    border-bottom: 1px solid var(--line-soft);
}

.ix-q:last-of-type {
    border-bottom: none;
}

.ix-q-text {
    font-size: 0.96rem;
    color: var(--text);
    margin: 0 0 0.8rem;
    line-height: 1.6;
}

.ix-opts {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.45rem;
}

.ix-opt {
    display: block;
    width: 100%;
    text-align: left;
    font-family: inherit;
    font-size: 0.92rem;
    color: var(--muted);
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 3px;
    padding: 0.65rem 0.9rem;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.ix-opt:hover:not(:disabled) {
    border-color: var(--green);
    color: var(--text);
}

.ix-opt:disabled {
    cursor: default;
}

.ix-opt.is-ok {
    border-color: var(--green);
    background: var(--green-dim);
    color: var(--text);
}

.ix-opt.is-bad {
    border-color: var(--red);
    background: rgba(255, 107, 94, 0.1);
    color: #d8b3ae;
}

.ix-opt.is-answer {
    border-color: var(--green);
    color: var(--green);
}

.ix-q-input {
    width: 100%;
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--text);
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 3px;
    padding: 0.6rem 0.8rem;
}

.ix-q-input:focus {
    outline: none;
    border-color: var(--green);
}

.ix-q-input.is-ok { border-color: var(--green); }
.ix-q-input.is-bad { border-color: var(--red); }

.ix-q-why {
    margin: 0.8rem 0 0;
    padding: 0.7rem 0.9rem;
    background: var(--panel-2);
    border-left: 2px solid var(--ix-blue);
    border-radius: 2px;
    font-size: 0.89rem;
    color: var(--muted);
    line-height: 1.6;
}

.ix-quiz-foot {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    margin-top: 1.1rem;
    padding-top: 0.9rem;
    border-top: 1px solid var(--line-soft);
}

.ix-quiz-score {
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--faint);
}

.ix-quiz-score.is-pass {
    color: var(--green);
}

/* bloques que aparecen segun el resultado del precheck */
.ix-adaptive {
    border-left: 2px dashed var(--line);
    padding-left: 1rem;
    margin: 1.2rem 0;
}

/* ============================================================
   notas del estudiante
   ============================================================ */

.ix-notes {
    margin: 2rem 0;
    padding: 1.2rem 1.3rem;
    background: var(--panel);
    border: 1px solid var(--line);
    border-left: 3px solid var(--ix-violet);
    border-radius: 4px;
}

.ix-notes > .tag {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ix-violet);
    display: block;
    margin-bottom: 0.9rem;
}

.ix-notes label {
    display: block;
    font-size: 0.88rem;
    color: var(--text);
    margin: 0.9rem 0 0.4rem;
}

.ix-notes textarea {
    width: 100%;
    min-height: 76px;
    resize: vertical;
    font-family: var(--mono);
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text);
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 3px;
    padding: 0.6rem 0.8rem;
}

.ix-notes textarea:focus {
    outline: none;
    border-color: var(--ix-violet);
}

.ix-notes-saved {
    display: block;
    margin-top: 0.7rem;
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--faint);
    opacity: 0;
    transition: opacity 0.2s;
}

.ix-notes-saved.is-visible {
    opacity: 1;
}

.ix-notes-privacy {
    margin-top: 0.9rem;
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--faint);
    line-height: 1.6;
}

/* ============================================================
   repaso espaciado
   ============================================================ */

.ix-review {
    margin: 1.8rem 0;
    display: grid;
    gap: 0.8rem;
}

.ix-card {
    padding: 1rem 1.1rem;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 4px;
}

.ix-card-front {
    font-size: 0.96rem;
    color: var(--text);
    line-height: 1.6;
    margin-bottom: 0.7rem;
}

.ix-card-back {
    font-size: 0.92rem;
    color: var(--muted);
    line-height: 1.65;
    padding: 0.7rem 0.9rem;
    background: var(--panel-2);
    border-left: 2px solid var(--green);
    border-radius: 2px;
    margin-bottom: 0.7rem;
}

.ix-card-grades {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-top: 0.7rem;
}

.ix-card-src {
    display: inline-block;
    margin-top: 0.7rem;
    font-family: var(--mono);
    font-size: 0.74rem;
    color: var(--faint);
}

.ix-card-src:hover {
    color: var(--green);
}

.ix-repaso-count {
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 1.2rem;
}

/* ============================================================
   panel de progreso
   ============================================================ */

.ix-panel-total {
    font-family: var(--mono);
    font-size: 1.05rem;
    color: var(--green);
    margin: 0 0 1.6rem;
}

.ix-tracks {
    display: grid;
    gap: 0.75rem;
}

.ix-track {
    display: grid;
    grid-template-columns: minmax(11rem, 16rem) 1fr auto;
    align-items: center;
    gap: 1rem;
}

.ix-track-name {
    font-size: 0.9rem;
    color: var(--muted);
}

.ix-track-bar {
    display: block;
    height: 8px;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 4px;
    overflow: hidden;
}

.ix-track-fill {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--green-2), var(--green));
    transition: width 0.35s ease;
}

.ix-track-count {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--faint);
    min-width: 4.5ch;
    text-align: right;
}

.ix-panel-tip {
    margin-top: 1.4rem;
    font-size: 0.88rem;
    color: var(--amber);
}

.ix-transfer {
    margin-top: 2.2rem;
    padding-top: 1.4rem;
    border-top: 1px solid var(--line);
}

.ix-transfer-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.8rem;
}

.ix-transfer input[type="file"] {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--muted);
}

#ix-transfer-msg {
    margin-top: 0.8rem;
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--green);
}

#ix-transfer-msg.is-error {
    color: var(--red);
}

/* ============================================================
   estado en el indice del curso
   ============================================================ */

.module.is-done {
    border-color: rgba(57, 255, 20, 0.35);
}

.module.is-done h3::after {
    content: " ✓";
    color: var(--green);
}

.module.is-started h3::after {
    content: " ·";
    color: var(--amber);
}

/* Lecciones aun no publicadas: se listan, pero sin enlace, para que el
   indice no genere enlaces rotos mientras se escribe el contenido. */
.study-link.is-pending {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    color: var(--faint);
    border: 1px dashed var(--line);
    border-radius: 3px;
    padding: 0.4rem 0.75rem;
    cursor: default;
}

.module:has(.study-link.is-pending) {
    opacity: 0.72;
}

.rail-count {
    color: var(--faint);
    font-family: var(--mono);
    font-size: 0.74rem;
}

.rail-list a.is-done .rn {
    color: var(--green);
}

.rail-list a.is-done::after {
    content: "✓";
    float: right;
    color: var(--green);
    font-size: 0.75rem;
}

/* ============================================================
   comentarios
   ============================================================ */

.ix-giscus {
    margin: 2.5rem 0 1rem;
    padding-top: 1.4rem;
    border-top: 1px solid var(--line);
    min-height: 90px;
}

.ix-giscus-note {
    font-family: var(--mono);
    font-size: 0.74rem;
    color: var(--faint);
    margin-top: 0.7rem;
}

/* ============================================================
   responsive
   ============================================================ */

@media (max-width: 900px) {
    .ix-track {
        grid-template-columns: 1fr auto;
        grid-template-areas:
            "name count"
            "bar  bar";
        gap: 0.4rem 0.8rem;
    }

    .ix-track-name { grid-area: name; }
    .ix-track-count { grid-area: count; }
    .ix-track-bar { grid-area: bar; }
}

@media (max-width: 560px) {
    .ix-lab-body,
    .ix-quiz,
    .ix-notes,
    .ix-ex {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .ix-lab-meta b {
        min-width: auto;
    }

    .ix-lab-meta div {
        flex-direction: column;
        gap: 0.15rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ix-track-fill,
    .ix-cmd,
    .ix-opt,
    .ix-btn,
    .ix-notes-saved {
        transition: none;
    }
}