/* ==========================================================================
   ANIMATIONS PÉDAGOGIQUES — comment-nous-travaillons.html
   Section épinglée pilotée par le scroll (voir animations.js).
   Aucune dépendance : SVG inline + transitions CSS.
   ========================================================================== */

:root {
    /* Palette matériaux, harmonisée avec la charte (brun / gris chaud / orange) */
    --mat-parpaing: #9C9A94;
    --mat-parpaing-cell: #B4B2AC;
    --mat-beton: #C4C1BB;
    --mat-metal: #C9CDD1;
    --mat-metal-line: #9AA0A6;
    --mat-laine: #E8C55A;
    --mat-pare-vapeur: rgba(74, 144, 217, 0.45);
    --mat-pare-vapeur-line: #4A90D9;
    --mat-placo: #F1EDE3;
    --mat-placo-line: #D9D2C2;
    --mat-enduit: #FAFAF8;
    --mat-enduit-line: #E5E2DA;
    --mat-peinture: #EADFCF;
    --mat-vis: #6B6B6B;
    --mat-exterieur: #EEF2F5;
    --mat-interieur: #FDFBF7;

    /* Rythme des animations */
    --anim-duration: 0.6s;
    --anim-stagger: 0.1s;
    --anim-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* -------------------- En-tête de page -------------------- */
.anim-intro {
    max-width: 46rem;
    margin: 0 auto;
    text-align: center;
}

/* -------------------- Onglets -------------------- */
.anim__tabs {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 0.25rem 0 0.5rem;
    margin: 0 -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
}

.anim__tabs::-webkit-scrollbar {
    display: none;
}

.anim__tab {
    flex: 0 0 auto;
    font-family: var(--title-font);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary-color);
    background: var(--secondary-color);
    border: 2px solid transparent;
    border-radius: 999px;
    padding: 0.45rem 1rem;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

.anim__tab:hover,
.anim__tab:focus-visible {
    border-color: var(--primary-light);
    outline: none;
}

.anim__tab[aria-selected="true"] {
    background: var(--primary-color);
    color: var(--white-color);
}

/* -------------------- Piste + zone épinglée -------------------- */
.anim__track {
    position: relative;
    /* Hauteur fixée par animations.js : (N+1) × 40 vh + hauteur de la scène */
}

.anim__stage {
    position: sticky;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    height: calc(100svh - var(--header-height));
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    /* Marge basse : laisse la place aux boutons flottants (Appeler / enveloppe) */
    padding: 0.5rem 0 5.5rem;
    box-sizing: border-box;
}

.anim__scene {
    flex: 0 1 auto;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white-color);
    border: 1px solid #E8E4DC;
    border-radius: 0.6rem;
    overflow: hidden;
}

.anim__scene svg {
    width: 100%;
    height: auto;
    max-height: 100%;
    display: block;
}

.anim__scene--empty {
    font-family: var(--title-font);
    color: var(--primary-color);
    text-align: center;
    padding: 2rem 1rem;
}

/* -------------------- Légende -------------------- */
.anim__caption {
    position: relative;
    flex: 0 0 auto;
    min-height: 11.5rem;
    padding: 0.25rem 0 3.25rem;
}

.anim__step-number {
    font-family: var(--title-font);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-color);
}

.anim__step-title {
    font-family: var(--title-font);
    font-size: 1.15rem;
    color: var(--primary-color);
    margin: 0.1rem 0 0.35rem;
}

.anim__step-text {
    line-height: 1.55;
    margin: 0;
}

.anim__caption-inner {
    transition: opacity 0.3s ease, transform 0.3s var(--anim-ease);
}

.anim__caption-inner.is-changing {
    opacity: 0;
    transform: translateY(6px);
    transition: none;
}

.anim__cta {
    position: absolute;
    left: 0;
    bottom: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--anim-duration) var(--anim-ease), transform var(--anim-duration) var(--anim-ease), visibility 0s linear var(--anim-duration);
}

.anim__cta.is-visible {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition-delay: 0s;
}

/* -------------------- Barre de progression -------------------- */
.anim__progress-wrap {
    position: relative;
    padding: 0.5rem 0.2rem 0;
}

.anim__progress-wrap::before,
.anim__progress-fill {
    content: '';
    position: absolute;
    left: 0.95rem;
    right: 0.95rem;
    top: calc(0.5rem + 0.75rem - 1.5px);
    height: 3px;
    border-radius: 2px;
    background: #E3DED5;
}

.anim__progress-fill {
    right: auto;
    width: 0;
    background: var(--accent-color);
    transition: width var(--anim-duration) var(--anim-ease);
}

.anim__progress {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.anim__dot {
    position: relative;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    border: 2px solid #E3DED5;
    background: var(--white-color);
    color: var(--text-color);
    font-family: var(--title-font);
    font-size: 0.7rem;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    transition: border-color 0.3s, background-color 0.3s, color 0.3s, transform 0.3s;
}

.anim__dot:hover,
.anim__dot:focus-visible {
    border-color: var(--primary-light);
    outline: none;
}

.anim__dot.is-done {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.anim__dot.is-current {
    border-color: var(--accent-color);
    background: var(--accent-color);
    color: var(--white-color);
    transform: scale(1.15);
}

.anim__dot-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
}

/* -------------------- Éléments animés dans le SVG -------------------- */
.scene text {
    font-family: var(--body-font);
    fill: var(--text-color);
}

.scene__label {
    font-size: 20px;
    font-weight: 700;
    fill: #5C5650;
}

.scene__label--cold {
    font-size: 18px;
    fill: var(--mat-pare-vapeur-line);
}

.scene__cote text {
    font-size: 17px;
    fill: #5C5650;
}

.scene__cote line {
    stroke: #5C5650;
    stroke-width: 1;
}

/* Matériaux */
.mat-exterieur { fill: var(--mat-exterieur); }
.mat-interieur { fill: var(--mat-interieur); }
.mat-beton { fill: var(--mat-beton); }
.mat-parpaing { fill: var(--mat-parpaing); stroke: #85837D; stroke-width: 1; }
.mat-parpaing-cell { fill: var(--mat-parpaing-cell); }
.mat-metal { fill: var(--mat-metal); stroke: var(--mat-metal-line); stroke-width: 1; }
.mat-metal-line { stroke: var(--mat-metal-line); stroke-width: 1; }
.mat-laine { fill: var(--mat-laine); }
.mat-pare-vapeur { fill: var(--mat-pare-vapeur); stroke: var(--mat-pare-vapeur-line); stroke-width: 1; }
.mat-placo { fill: var(--mat-placo); stroke: var(--mat-placo-line); stroke-width: 1.2; }
.mat-vis { fill: var(--mat-vis); }
.mat-bande { fill: #E3E0D8; stroke: #CFCAC0; stroke-width: 1; }
.mat-enduit { fill: var(--mat-enduit); stroke: var(--mat-enduit-line); stroke-width: 1; }
.mat-peinture { fill: var(--mat-peinture); }

/* Jauge (thermomètre) */
.gauge__title { font-size: 15px; font-weight: 700; fill: #5C5650; }
.gauge__tube { fill: var(--white-color); stroke: #9AA0A6; stroke-width: 1.5; }
.gauge__bulb { fill: var(--accent-color); stroke: #9AA0A6; stroke-width: 1.5; }
.gauge__fill {
    fill: var(--accent-color);
    transform-box: fill-box;
    transform-origin: bottom center;
    transform: scaleY(var(--gauge, 0.2));
    transition: transform var(--anim-duration) var(--anim-ease);
}
.gauge__mark { stroke: var(--mat-pare-vapeur-line); stroke-width: 2; }
.gauge__mark-label { font-size: 13px; fill: var(--mat-pare-vapeur-line); }
.gauge__value { font-size: 20px; font-weight: 700; fill: var(--primary-color); }

/* État caché / visible : chaque élément porte data-in="k" (étape d'apparition)
   et une classe de mouvement. --i = rang dans la cascade de l'étape. */
[data-in] {
    transform-box: fill-box;
    transform-origin: center;
    opacity: 0;
    transition: opacity var(--anim-duration) var(--anim-ease), transform var(--anim-duration) var(--anim-ease);
    transition-delay: 0s;
}

[data-in]:not(.is-in) {
    pointer-events: none;
}

[data-in].is-in {
    opacity: 1;
    transform: none;
    transition-delay: calc(var(--i, 0) * var(--anim-stagger));
}

.anim-drop { transform: translateY(-40px); }
.anim-rise { transform: translateY(40px); }
.anim-from-right { transform: translateX(60px); }
.anim-from-left { transform: translateX(-60px); }
.anim-fade { transform: none; }
.anim-pop { transform: scale(0); }
.anim-grow-up { transform: scaleY(0); transform-origin: bottom center; }
.anim-grow-down { transform: scaleY(0); transform-origin: top center; }
.anim-unroll { transform: scaleY(0); transform-origin: top center; }

/* Éléments qui disparaissent (dépose) : data-out="k" */
[data-out] {
    transform-box: fill-box;
    transform-origin: center;
    transition: opacity var(--anim-duration) var(--anim-ease), transform var(--anim-duration) var(--anim-ease);
}

[data-out].is-out {
    opacity: 0;
    pointer-events: none;
    transition-delay: calc(var(--i, 0) * var(--anim-stagger));
}

[data-out].is-out.anim-fall { transform: translateY(90px) rotate(6deg); }
[data-out].is-out.anim-fall-left { transform: translate(-30px, 90px) rotate(-10deg); }
[data-out].is-out.anim-fade-out { transform: none; }

/* Mouvements supplémentaires */
.anim-grow-right { transform: scaleX(0); transform-origin: left center; }
.anim-grow-left { transform: scaleX(0); transform-origin: right center; }

/* Jauge horizontale (acoustique) */
.gauge__fill--x {
    transform-origin: left center;
    transform: scaleX(var(--gauge, 0));
}

/* Tracé au sol */
.scene__trace {
    stroke: var(--accent-color);
    stroke-width: 3;
    stroke-dasharray: 10 6;
    fill: none;
}

/* Vieux matériaux (rénovation) */
.mat-vieux-enduit { fill: #D8CFC0; stroke: #C4B9A6; stroke-width: 1; }
.mat-vieux-lattis { stroke: #A8865A; stroke-width: 2; }
.mat-papier { fill: #E9E0D0; stroke: #D3C7B2; stroke-width: 1; }
.mat-papier-dos { fill: #F4EFE6; stroke: #D3C7B2; stroke-width: 1; }
.mat-fissure { fill: none; stroke: #5C5650; stroke-width: 2.5; stroke-linejoin: round; }
.mat-humidite { fill: rgba(74, 144, 217, 0.28); stroke: rgba(60, 110, 170, 0.5); stroke-width: 1; }
.mat-tache { fill: rgba(139, 90, 43, 0.35); stroke: rgba(110, 70, 30, 0.5); stroke-width: 1; }
.mat-bois { fill: #C9A879; stroke: #A8865A; stroke-width: 1; }
.mat-plinthe { fill: #D9CBB6; stroke: #C4B49B; stroke-width: 1; }

/* Pastilles du diagnostic */
.hotspot { cursor: pointer; }
.hotspot__ring {
    fill: rgba(232, 126, 90, 0.25);
    stroke: var(--accent-color);
    stroke-width: 2;
    transform-box: fill-box;
    transform-origin: center;
}
.hotspot__dot { fill: var(--accent-color); }
.hotspot text { fill: var(--white-color); font-family: var(--title-font); font-weight: 700; font-size: 16px; }
.hotspot:hover .hotspot__dot,
.hotspot:focus .hotspot__dot { fill: var(--primary-color); }
.hotspot:focus { outline: none; }
.hotspot:focus-visible .hotspot__ring { stroke: var(--primary-color); stroke-width: 3; }

@keyframes hotspot-pulse {
    0% { transform: scale(0.85); opacity: 0.9; }
    70% { transform: scale(1.5); opacity: 0; }
    100% { transform: scale(1.5); opacity: 0; }
}

.is-diagnostic .hotspot.is-in .hotspot__ring {
    animation: hotspot-pulse 1.8s ease-out infinite;
}

/* Info-bulle du diagnostic (dans la légende) */
.anim__tip-title {
    font-family: var(--title-font);
    font-size: 1.15rem;
    color: var(--primary-color);
    margin: 0.1rem 0 0.35rem;
}

.anim__tip-text {
    line-height: 1.55;
    margin: 0 0 0.6rem;
}

.anim__tip-close {
    font-family: var(--title-font);
    font-size: 0.85rem;
    color: var(--accent-color);
    background: none;
    border: 1px solid var(--accent-color);
    border-radius: 999px;
    padding: 0.3rem 0.9rem;
    cursor: pointer;
}

.anim__hotspot-list {
    margin-top: 0.75rem;
    display: grid;
    gap: 0.25rem;
}

.anim__hotspot-list dt {
    font-family: var(--title-font);
    font-weight: 600;
    color: var(--primary-color);
}

.anim__hotspot-list dd {
    margin: 0 0 0.5rem;
    line-height: 1.5;
}

/* Curseur avant / après : un <input type="range"> invisible sur toute la scène */
.anim__scene {
    position: relative;
}

.anim__compare {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    opacity: 0;
    cursor: ew-resize;
    z-index: 2;
}

.anim__scene.is-comparing:focus-within {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

.compare__handle-line { stroke: var(--white-color); stroke-width: 3; }
.compare__handle-line--shadow { stroke: rgba(0, 0, 0, 0.35); stroke-width: 5; }
.compare__handle-knob { fill: var(--white-color); stroke: var(--primary-color); stroke-width: 2; }
.compare__handle-arrow { fill: var(--primary-color); }
.compare__label {
    font-family: var(--title-font);
    font-weight: 700;
    font-size: 16px;
    fill: var(--white-color);
}
.compare__label-bg { fill: rgba(30, 26, 23, 0.65); }

/* Sous-onglets (Rénovation) */
.anim__subtabs {
    display: flex;
    justify-content: center;
    gap: 0.4rem;
}

.anim__subtab {
    font-family: var(--title-font);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-color);
    background: var(--white-color);
    border: 1px solid var(--primary-light);
    border-radius: 999px;
    padding: 0.3rem 0.85rem;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}

.anim__subtab[aria-pressed="true"] {
    background: var(--primary-light);
    color: var(--white-color);
}

/* -------------------- Vignette en boucle sur l'accueil -------------------- */
.method__teaser {
    position: relative;
    display: block;
    max-width: 640px;
    margin: 0 auto 1.5rem;
    border: 1px solid #E8E4DC;
    border-radius: 0.6rem;
    overflow: hidden;
    background: var(--white-color);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s, box-shadow 0.3s;
}

.method__teaser:hover,
.method__teaser:focus-visible {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    outline: none;
}

.method__teaser-scene {
    aspect-ratio: 720 / 500;
}

.method__teaser-scene svg {
    width: 100%;
    height: 100%;
    display: block;
}

.method__teaser-badge {
    position: absolute;
    left: 0.75rem;
    bottom: 0.75rem;
    font-family: var(--title-font);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white-color);
    background: var(--accent-color);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
}

/* Remise à zéro de la boucle sans rejouer la transition à l'envers */
.is-resetting [data-in],
.is-resetting .gauge__fill {
    transition: none !important;
}

/* -------------------- Mode « réduire les animations » -------------------- */
/* Une image fixe par étape, empilées, avec la légende en dessous. */
.anim--static .anim__track,
.anim--static .anim__stage {
    display: none;
}

.anim__static {
    display: none;
}

.anim--static .anim__static {
    display: grid;
    gap: 2rem;
    margin-top: 1rem;
}

.anim__static [data-in],
.anim__static [data-out],
.anim__static .gauge__fill,
.anim__static .anim__caption-inner {
    transition: none !important;
}

.anim__static .hotspot__ring {
    animation: none !important;
}

.anim__static .hotspot {
    cursor: default;
}

.anim__static-step {
    margin: 0;
}

.anim__static-step .anim__scene {
    aspect-ratio: 720 / 500;
}

.anim__static-step figcaption {
    padding-top: 0.75rem;
}

.anim__static .anim__cta {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    margin-top: 1rem;
}

@media (prefers-reduced-motion: reduce) {
    [data-in],
    [data-out],
    .gauge__fill,
    .anim__progress-fill,
    .anim__caption-inner,
    .anim__cta {
        transition: none !important;
    }
}

/* -------------------- Tablette / desktop -------------------- */
@media screen and (min-width: 768px) {
    .anim__tabs {
        justify-content: center;
        margin: 0;
        padding-left: 0;
        padding-right: 0;
    }

    .anim__tab {
        font-size: 1rem;
        padding: 0.55rem 1.4rem;
    }

    .anim__step-title {
        font-size: 1.35rem;
    }

    .anim__dot-label {
        position: absolute;
        top: 100%;
        left: 50%;
        transform: translateX(-50%);
        margin-top: 0.35rem;
        width: auto;
        height: auto;
        overflow: visible;
        clip: auto;
        font-size: 0.7rem;
        font-weight: 400;
        color: var(--text-color);
        white-space: nowrap;
    }

    .anim__progress-wrap {
        padding-bottom: 1.6rem;
    }
}

@media screen and (min-width: 1024px) {
    .anim__stage {
        display: grid;
        grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
        grid-template-rows: auto auto minmax(0, 1fr) auto;
        grid-template-areas:
            "tabs tabs"
            "subtabs subtabs"
            "scene caption"
            "progress progress";
        column-gap: 2.5rem;
        row-gap: 1rem;
        padding: 1rem 0 1.5rem;
    }

    .anim__tabs { grid-area: tabs; }
    .anim__subtabs { grid-area: subtabs; }
    .anim__subtabs[hidden] { display: none; }
    .anim__scene { grid-area: scene; align-self: center; }
    .anim__caption {
        grid-area: caption;
        align-self: center;
        min-height: 0;
        padding: 0 0 4rem;
    }
    .anim__progress-wrap { grid-area: progress; }

    .anim__step-title {
        font-size: 1.6rem;
    }

    .anim__step-text {
        font-size: 1.05rem;
        line-height: 1.65;
    }

    .anim__static-step {
        display: grid;
        grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
        gap: 2rem;
        align-items: center;
    }
}