/* ────────────────────────────────────────────────────────────────────────────
   L'Observatoire Ludipo — le système solaire, sept instruments.

   Deux ambiances dans un seul shell, et c'est un choix de conception :
   la COUPOLE est sombre (une coupole d'observation ne s'éclaire pas, sinon on
   ne voit plus le ciel), les PUPITRES sont clairs (on y travaille, on n'y
   contemple pas). Le violet de la charte Ludipo tient les deux ensemble.

   Classes préfixées « ob- » pour ne jamais entrer en collision avec main.css.
   ──────────────────────────────────────────────────────────────────────────── */

.ob-body {
    --ob-nuit: #0F0C24;
    --ob-nuit-haut: #1A1342;
    --ob-nuit-creux: #0A0719;
    --ob-trait: #2E2266;
    --ob-encre: #241C33;
    --ob-craie: #EDE9FF;
    --ob-craie-douce: #A79FD0;
    --ob-craie-faible: #7C74A8;
    --ob-or: #F6B93B;
    --ob-glace: #6FD8EE;
    --ob-vert: #4BD6A4;
    --ob-corail: #F0805A;
    --ob-violet: #8B7BF7;

    background: var(--ob-nuit);
    min-height: 100vh;
    margin: 0;
}

/* Les couleurs de dimension. RECOPIE de `observatoire.DIMENSIONS` côté Python :
   une feuille de style ne se génère pas depuis Python sans étape de
   construction, donc la parité des deux listes est tenue par un test
   (`test_observatoire_design.py`), exactement comme `COULEURS_ILES` pour
   La Grande Traversée. */
.ob-dim--positions    { --dim: #8B7BF7; }
.ob-dim--distances    { --dim: #6FD8EE; }
.ob-dim--temperatures { --dim: #F0805A; }
.ob-dim--atmosphere   { --dim: #4BD6A4; }
.ob-dim--composition  { --dim: #F6B93B; }
.ob-dim--satellites   { --dim: #C9D4E8; }
.ob-dim--vitesses     { --dim: #F272A8; }

/* Une règle `display:` bat le [hidden] natif. Ce garde-fou évite de le redire
   à chaque composant — le piège a déjà valu des barres d'actions peintes
   par-dessus des bilans dans d'autres jeux du dépôt. */
.ob-shell [hidden] { display: none !important; }

.ob-shell { min-height: 100vh; display: flex; flex-direction: column; color: var(--ob-craie); }
.ob-num { font-variant-numeric: tabular-nums; }

/* ── Topbar ────────────────────────────────────────────────────────────────── */
.ob-topbar {
    position: sticky; top: 0; z-index: 40;
    display: flex; align-items: center; gap: 0.9rem;
    padding: 0.5rem 0.9rem;
    background: rgba(15, 12, 36, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--ob-trait);
}
.ob-back {
    width: 38px; height: 38px; border-radius: 50%;
    display: grid; place-items: center; flex-shrink: 0;
    background: transparent; border: 2px solid var(--ob-trait);
    color: var(--ob-craie); font-size: 1.05rem; font-weight: 800;
    text-decoration: none; transition: transform var(--transition-fast, .15s);
}
.ob-back:hover { transform: scale(1.08); border-color: var(--ob-violet); color: var(--ob-craie); }
.ob-brand { display: flex; align-items: center; gap: 0.6rem; min-width: 0; flex: 1; }
.ob-brand-mark {
    width: 40px; height: 40px; border-radius: var(--radius-md, 12px); flex-shrink: 0;
    background: var(--color-primary, #6C5CE7); display: grid; place-items: center;
    color: #fff;
}
.ob-brand-mark svg { width: 24px; height: 24px; }
.ob-brand strong { display: block; font-size: 1rem; line-height: 1.2; }
.ob-brand small { color: var(--ob-craie-douce); font-size: 0.72rem; }
.ob-topbar-right { display: flex; align-items: center; gap: 0.5rem; }

.ob-grade-chip {
    display: inline-flex; align-items: center; gap: 0.35rem;
    border-radius: 999px; padding: 0.3rem 0.75rem;
    font-weight: 800; font-size: 0.8rem;
    background: color-mix(in srgb, var(--grade, #8B7BF7) 22%, transparent);
    border: 1.5px solid var(--grade, #8B7BF7);
    color: var(--ob-craie);
}
.ob-carnet-btn {
    display: inline-flex; align-items: center; gap: 0.4rem;
    background: transparent; border: 1.5px solid var(--ob-trait);
    border-radius: 999px; padding: 0.35rem 0.8rem;
    color: var(--ob-craie); font-family: inherit; font-weight: 800; font-size: 0.82rem;
    cursor: pointer;
}
.ob-carnet-btn:hover { border-color: var(--ob-or); }
.ob-carnet-btn svg { width: 17px; height: 17px; }
.ob-carnet-btn b { color: var(--ob-or); }

.ob-main { flex: 1; width: 100%; max-width: 980px; margin: 0 auto; padding: 1rem 1rem 4rem; }

/* ── La Coupole ───────────────────────────────────────────────────────────── */
.ob-ciel-cadre {
    position: relative; border-radius: var(--radius-lg, 20px);
    overflow: hidden; border: 1px solid var(--ob-trait);
    background: radial-gradient(700px 380px at 50% 20%, #1C1550, var(--ob-nuit-creux) 70%);
}
#ob-etoiles { position: absolute; inset: 0; width: 100%; height: 100%; }
#ob-ciel { position: relative; display: block; width: 100%; height: auto; }
.ob-ciel-legende {
    padding: 0.5rem 0.9rem 0.7rem;
    font-size: 0.72rem; color: var(--ob-craie-faible); line-height: 1.5;
}

.ob-manivelle {
    display: flex; align-items: center; gap: 0.8rem;
    margin: 0.9rem 0 1.4rem; padding: 0.7rem 0.9rem;
    border: 1px solid var(--ob-trait); border-radius: var(--radius-md, 12px);
    background: var(--ob-nuit-haut);
}
.ob-manivelle label { font-size: 0.78rem; font-weight: 800; color: var(--ob-craie-douce); flex: none; }
.ob-manivelle input[type="range"] { flex: 1; accent-color: var(--ob-or); min-width: 80px; }
.ob-manivelle output { font-size: 0.8rem; color: var(--ob-glace); flex: none; min-width: 72px; text-align: right; }

.ob-section-titre { font-family: var(--font-display, inherit); font-size: 1.25rem; margin: 0 0 0.25rem; }
.ob-section-sous { color: var(--ob-craie-douce); font-size: 0.9rem; margin: 0 0 1rem; max-width: 60ch; }

.ob-pupitres {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.8rem;
}
.ob-pupitre {
    display: flex; align-items: center; gap: 0.8rem; text-align: left;
    padding: 0.9rem; border-radius: var(--radius-md, 12px);
    border: 1.5px solid var(--ob-trait); background: var(--ob-nuit-haut);
    color: var(--ob-craie); font-family: inherit; cursor: pointer;
    transition: transform .18s ease, border-color .18s ease;
}
.ob-pupitre:hover:not(:disabled) { transform: translateY(-2px); border-color: var(--dim, var(--ob-violet)); }
.ob-pupitre:disabled { opacity: .45; cursor: not-allowed; }
.ob-pupitre-ic {
    width: 46px; height: 46px; flex: none; border-radius: 50%;
    display: grid; place-items: center;
    background: color-mix(in srgb, var(--dim) 18%, transparent);
    border: 2px solid var(--dim);
}
.ob-pupitre-ic svg { width: 28px; height: 28px; }
.ob-pupitre-txt { min-width: 0; }
.ob-pupitre-txt strong { display: block; font-size: 0.95rem; line-height: 1.25; }
.ob-pupitre-txt small { display: block; color: var(--ob-craie-faible); font-size: 0.74rem; margin-top: 2px; }

/* ── Un pupitre ───────────────────────────────────────────────────────────── */
.ob-pup-bar {
    display: flex; align-items: center; gap: 0.8rem; margin-bottom: 1rem;
    padding-bottom: 0.7rem; border-bottom: 1px solid var(--ob-trait);
}
.ob-btn-retour {
    background: transparent; border: 1.5px solid var(--ob-trait); border-radius: 999px;
    padding: 0.35rem 0.85rem; color: var(--ob-craie); font-family: inherit;
    font-weight: 800; font-size: 0.8rem; cursor: pointer;
}
.ob-btn-retour:hover { border-color: var(--ob-violet); }
.ob-pup-titre { flex: 1; font-weight: 800; font-size: 1rem; }
.ob-pup-avance { color: var(--ob-craie-faible); font-size: 0.82rem; }

.ob-enonce {
    font-size: 1.06rem; font-weight: 700; line-height: 1.5;
    margin: 0 0 1rem; max-width: 64ch;
}
.ob-enonce b { color: var(--ob-or); }

/* Le plateau est CLAIR : c'est l'établi, pas le ciel. */
.ob-plateau {
    background: #FFFFFF; color: var(--color-text, #2D3436);
    border-radius: var(--radius-lg, 20px); padding: 1.1rem;
    border: 1px solid var(--ob-trait);
}
/* Une scène large repousse les molettes sous la ligne de flottaison, et
   l'enfant ne voit plus ce que sa main déplace. On la borne. */
.ob-plateau svg { max-width: 100%; height: auto; display: block; }
.ob-w > svg { max-width: 520px; margin: 0 auto; }
/* Le Grand Tableau porte jusqu'à huit rails : à 520 px ils se touchent. */
.ob-dim--temperatures .ob-w > svg,
.ob-dim--satellites .ob-w > svg { max-width: 780px; }
.ob-gaz-grille svg { max-width: 190px; }

.ob-actions { display: flex; gap: 0.7rem; flex-wrap: wrap; margin-top: 1rem; }
.ob-btn {
    font-family: inherit; font-weight: 800; font-size: 0.92rem;
    border-radius: 999px; border: 2px solid transparent;
    padding: 0.7rem 1.4rem; cursor: pointer;
    transition: transform .15s ease, opacity .15s ease;
}
.ob-btn:hover:not(:disabled) { transform: translateY(-2px); }
.ob-btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.ob-btn-valider { background: linear-gradient(180deg, #FFD166, var(--ob-or)); color: #35240A; }
.ob-btn-suite { background: transparent; border-color: var(--ob-trait); color: var(--ob-craie); }
.ob-btn-suite:hover { border-color: var(--ob-violet); }

.ob-verdict {
    margin-top: 1rem; padding: 0.9rem 1rem; border-radius: var(--radius-md, 12px);
    border: 1px solid var(--ob-trait); background: var(--ob-nuit-haut);
    display: flex; gap: 0.8rem; align-items: flex-start; font-size: 0.93rem;
    line-height: 1.55; color: var(--ob-craie-douce);
}
.ob-verdict b { color: var(--ob-craie); }
.ob-verdict .ob-marque {
    flex: none; width: 26px; height: 26px; border-radius: 50%;
    display: grid; place-items: center;
}
.ob-verdict .ob-marque svg { width: 15px; height: 15px; }
.ob-verdict--ok { border-color: color-mix(in srgb, var(--ob-vert) 55%, transparent); }
.ob-verdict--ok .ob-marque { background: var(--ob-vert); color: #06301F; }
.ob-verdict--non { border-color: color-mix(in srgb, var(--ob-corail) 55%, transparent); }
.ob-verdict--non .ob-marque { background: var(--ob-corail); color: #3A1305; }

/* ── Widgets ──────────────────────────────────────────────────────────────── */
.ob-w { display: grid; gap: 1rem; }
.ob-w-rangee { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; }
.ob-w-label {
    font-size: 0.7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
    color: var(--color-text-light, #636E72); flex: none; min-width: 96px;
}
.ob-w input[type="range"] { flex: 1; min-width: 140px; accent-color: var(--color-primary, #6C5CE7); }
.ob-w-valeur {
    font-variant-numeric: tabular-nums; font-weight: 800; font-size: 0.95rem;
    min-width: 92px; text-align: right; color: var(--color-primary-dark, #5A4BD1);
}

/* Thermomètres du Thermostat */
.ob-thermos { display: flex; gap: 1.6rem; justify-content: center; align-items: flex-end; }
.ob-thermo { text-align: center; }
.ob-thermo-tube {
    width: 30px; height: 170px; border-radius: 999px; position: relative;
    background: #EEF0F6; border: 2px solid var(--color-border, #DFE6E9); overflow: hidden;
}
.ob-thermo-tube i {
    position: absolute; left: 0; right: 0; bottom: 0; display: block;
    background: linear-gradient(180deg, #F0805A, #E0402A);
    transition: height .35s cubic-bezier(.22,1,.36,1);
}
.ob-thermo--mesure .ob-thermo-tube i { background: linear-gradient(180deg, #6C5CE7, #4B3BB5); }
.ob-thermo b { display: block; font-variant-numeric: tabular-nums; margin-top: .45rem; font-size: 1rem; }
.ob-thermo small { display: block; font-size: .7rem; color: var(--color-text-light, #636E72); }

/* Camembert de la Salle des gaz */
.ob-gaz-grille { display: grid; grid-template-columns: minmax(0, 200px) 1fr; gap: 1.2rem; align-items: center; }
@media (max-width: 560px) { .ob-gaz-grille { grid-template-columns: 1fr; } }
.ob-gaz-bouteilles { display: grid; gap: .5rem; }
.ob-gaz-bouteille { display: flex; align-items: center; gap: .6rem; }
/* `.ob-gaz-bouteille span` (0,1,1) battait `.ob-gaz-pastille` (0,1,0) et
   étirait la pastille de couleur en une barre de 270 px. Le nom porte donc
   sa propre classe : deux sélecteurs de même poids, plus de collision. */
.ob-gaz-nom { flex: 1; font-weight: 700; font-size: .88rem; }
.ob-gaz-pastille { width: 14px; height: 14px; border-radius: 4px; flex: none; }
.ob-gaz-total { font-weight: 800; font-variant-numeric: tabular-nums; }
.ob-gaz-total--plein { color: var(--color-success, #00B894); }
.ob-gaz-total--trop { color: var(--color-error, #E17055); }

/* Rails du Grand Tableau */
.ob-rails { display: flex; gap: .5rem; overflow-x: auto; padding-bottom: .4rem; }
.ob-rail { flex: 1 0 74px; display: flex; flex-direction: column; align-items: center; gap: .35rem; }
.ob-rail select { width: 100%; font-family: inherit; font-size: .78rem; padding: .3rem; }
.ob-rail-nom { font-size: .74rem; font-weight: 800; text-align: center; }
.ob-rail-jeton { width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--ob-encre); }

/* Barillet du Double pesage */
.ob-barillet { display: flex; gap: .5rem; overflow-x: auto; padding: .3rem 0; }
.ob-astre-cran {
    flex: 0 0 auto; display: flex; flex-direction: column; align-items: center; gap: .3rem;
    padding: .5rem .7rem; border-radius: var(--radius-md, 12px);
    border: 2px solid var(--color-border, #DFE6E9); background: #fff;
    cursor: pointer; font-family: inherit; min-width: 84px;
}
.ob-astre-cran[aria-pressed="true"] { border-color: var(--color-primary, #6C5CE7); background: #F1EDFF; }
.ob-astre-cran b { font-size: .8rem; }
.ob-astre-cran small { font-size: .68rem; color: var(--color-text-light, #636E72); }
.ob-cadrans { display: flex; gap: 1.2rem; justify-content: center; flex-wrap: wrap; }
.ob-cadran {
    text-align: center; padding: .7rem 1.2rem; border-radius: var(--radius-md, 12px);
    background: #F4F5FB; border: 2px solid var(--color-border, #DFE6E9); min-width: 130px;
}
.ob-cadran b { display: block; font-size: 1.7rem; font-variant-numeric: tabular-nums; line-height: 1.1; }
.ob-cadran small { font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--color-text-light, #636E72); }

/* Ranger (order) */
.ob-ordre { display: grid; gap: .5rem; }
.ob-ordre-ligne {
    display: flex; align-items: center; gap: .6rem;
    padding: .6rem .8rem; border-radius: var(--radius-md, 12px);
    border: 2px solid var(--color-border, #DFE6E9); background: #fff;
}
.ob-ordre-ligne span { flex: 1; font-weight: 700; }
.ob-ordre-ligne button {
    width: 34px; height: 34px; border-radius: 8px; cursor: pointer;
    border: 1.5px solid var(--color-border, #DFE6E9); background: #fff;
    font-family: inherit; font-size: 1rem; font-weight: 800;
}
.ob-ordre-ligne button:hover:not(:disabled) { border-color: var(--color-primary, #6C5CE7); }

/* Registre des nuits */
.ob-nuits { display: grid; gap: .45rem; }
.ob-nuit { display: flex; align-items: center; gap: .5rem; }
.ob-nuit-nom { flex: none; width: 62px; font-size: .72rem; color: var(--color-text-light, #636E72); }
.ob-nuit-piste { position: relative; flex: 1; height: 30px; background: #F4F5FB; border-radius: 8px; }
.ob-nuit-piste i {
    position: absolute; top: 50%; width: 12px; height: 12px; margin: -6px 0 0 -6px;
    border-radius: 50%; border: 1.5px solid var(--ob-encre);
}
.ob-nuit-piste .ob-jupiter {
    width: 20px; height: 20px; margin: -10px 0 0 -10px; background: #D9A86C;
}

/* ── Le Carnet ────────────────────────────────────────────────────────────── */
.ob-carnet {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
    max-height: 76vh; overflow-y: auto;
    background: var(--ob-nuit-haut); border-top: 2px solid var(--ob-or);
    border-radius: 20px 20px 0 0; padding: 1rem 1rem 2rem;
    box-shadow: 0 -12px 40px rgba(0, 0, 0, .5);
}
.ob-carnet-tete { display: flex; align-items: center; justify-content: space-between; }
.ob-carnet-tete h2 { font-family: var(--font-display, inherit); font-size: 1.15rem; margin: 0; }
.ob-carnet-fermer {
    width: 34px; height: 34px; border-radius: 50%; cursor: pointer;
    background: transparent; border: 1.5px solid var(--ob-trait); color: var(--ob-craie);
    display: grid; place-items: center;
}
.ob-carnet-fermer svg { width: 14px; height: 14px; }
.ob-carnet-aide { font-size: .82rem; color: var(--ob-craie-douce); margin: .5rem 0 1rem; max-width: 62ch; }
.ob-carnet-lignes { list-style: none; margin: 0; padding: 0; display: grid; gap: .4rem; }
.ob-carnet-ligne {
    display: flex; align-items: center; gap: .7rem;
    padding: .55rem .7rem; border-radius: 10px;
    border-left: 3px solid var(--dim, var(--ob-trait));
    background: rgba(255, 255, 255, .04);
}
.ob-carnet-ligne-nom { flex: 1; font-size: .88rem; }
.ob-carnet-etat {
    flex: none; font-size: .68rem; font-weight: 800; letter-spacing: .06em;
    text-transform: uppercase; padding: .16rem .55rem; border-radius: 999px;
}
.ob-etat--empruntee { background: rgba(255, 255, 255, .08); color: var(--ob-craie-faible); }
.ob-etat--a_reverifier { background: rgba(240, 128, 90, .18); color: #FBC0AA; }
.ob-etat--mesuree { background: rgba(111, 216, 238, .18); color: var(--ob-glace); }
.ob-etat--gravee { background: rgba(246, 185, 59, .22); color: var(--ob-or); }
.ob-etat--plus_tard { background: transparent; color: var(--ob-craie-faible); font-style: italic; }
.ob-carnet-ligne--plus_tard { opacity: .5; }

/* ── Bilan ────────────────────────────────────────────────────────────────── */
.ob-bilan { text-align: center; padding: 1.5rem 0; }
.ob-bilan h2 { font-family: var(--font-display, inherit); font-size: 1.6rem; margin: 0 0 .5rem; }
.ob-bilan-score { font-size: 2.4rem; font-weight: 900; color: var(--ob-or); margin: 0 0 1rem; }
.ob-bilan-lignes { list-style: none; padding: 0; margin: 0 auto 1.2rem; max-width: 460px; display: grid; gap: .4rem; }
.ob-bilan-lignes li {
    display: flex; gap: .6rem; align-items: center; text-align: left;
    padding: .55rem .8rem; border-radius: 10px; background: var(--ob-nuit-haut);
    font-size: .88rem; color: var(--ob-craie-douce);
}
.ob-bilan .ob-actions { justify-content: center; }

@media (prefers-reduced-motion: reduce) {
    .ob-shell *, .ob-shell *::after { animation: none !important; transition: none !important; }
}