/* ============================================================
   Atom Solutions — feuille de style
   Palette : papier minéral, encre verte, ambre (temps perdu),
   outremer (temps rendu).
   ============================================================ */

:root {
    --paper: #F1F2EC;
    --paper-2: #E5E8DE;
    --paper-3: #D8DCCF;
    --ink: #16201A;
    --ink-2: #26302A;
    --muted: #59635B;
    --line: #C7CCBF;

    --blue: #2F45E8;
    --blue-dark: #2133C4;
    --blue-light: #8D9BFF;
    --amber: #E0A33A;
    --amber-soft: #F3DFB6;

    --on-ink: #EEF0E8;
    --on-ink-muted: #A9B2A8;
    --ink-line: #39443C;

    --font-display: 'Bricolage Grotesque', 'Instrument Sans', system-ui, sans-serif;
    --font-body: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;

    --container: 1180px;
    --gutter: clamp(1.25rem, 4vw, 2.5rem);
    --section-y: clamp(4.5rem, 10vw, 8rem);

    --r-sm: 6px;
    --r-md: 12px;
    --r-lg: 20px;

    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ===== BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 5rem; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--ink);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; }

:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 3px;
    border-radius: 4px;
}

.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    overflow: hidden; clip: rect(0 0 0 0);
    white-space: nowrap;
}

.skip-link {
    position: absolute;
    left: 1rem; top: -3rem;
    z-index: 100;
    padding: 0.6rem 1rem;
    background: var(--ink);
    color: var(--on-ink);
    border-radius: var(--r-sm);
    text-decoration: none;
}
.skip-link:focus { top: 1rem; }

.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

/* ===== TYPOGRAPHIE ===== */
h1, h2, h3 {
    font-family: var(--font-display);
    font-optical-sizing: auto;
    letter-spacing: -0.015em;
    line-height: 1.1;
    text-wrap: balance;
}

.section { padding-block: var(--section-y); }

.section__head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 3.5rem); }

.section__title {
    font-size: clamp(2rem, 4.2vw, 3.1rem);
    font-weight: 700;
    font-variation-settings: 'wdth' 88;
    margin-bottom: 1rem;
}

.section__lead {
    font-size: 1.15rem;
    color: var(--muted);
    max-width: 38rem;
    text-wrap: pretty;
}

/* ===== BOUTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.2rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.98rem;
    line-height: 1.2;
    text-decoration: none;
    border: 1.5px solid transparent;
    transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
    white-space: nowrap;
}
.btn--lg { padding: 0.95rem 1.6rem; font-size: 1.05rem; }
.btn--block { width: 100%; }

.btn--primary { background: var(--blue); color: #fff; }
.btn--primary:hover { background: var(--blue-dark); }

.btn--ghost { border-color: var(--ink); color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }

.btn--light { background: var(--on-ink); color: var(--ink); }
.btn--light:hover { background: #fff; }

/* ===== EN-TÊTE ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: color-mix(in srgb, var(--paper) 88%, transparent);
    backdrop-filter: saturate(140%) blur(10px);
    -webkit-backdrop-filter: saturate(140%) blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color 200ms ease;
}
.header.is-scrolled { border-bottom-color: var(--line); }

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    height: 4.5rem;
}

.wordmark {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.3rem;
    font-variation-settings: 'wdth' 85;
    letter-spacing: -0.02em;
    color: var(--ink);
}
.wordmark__mark { width: 1.75rem; height: 1.75rem; }
.wordmark--light { color: var(--on-ink); }

.nav__menu {
    display: flex;
    align-items: center;
    gap: 1.6rem;
    margin-left: auto;
}
.nav__link {
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--muted);
    padding-block: 0.3rem;
    border-bottom: 1.5px solid transparent;
}
.nav__link:hover, .nav__link.is-active { color: var(--ink); border-bottom-color: var(--ink); }
.nav__menu-cta { display: none; }

.nav__burger { display: none; }

/* ===== HERO ===== */
.hero { padding-top: clamp(3rem, 8vw, 6rem); padding-bottom: clamp(3rem, 6vw, 4.5rem); }

.hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(2.5rem, 6vw, 5rem);
    align-items: center;
}

.hero__title {
    font-size: clamp(2.6rem, 6.2vw, 5rem);
    font-weight: 750;
    font-variation-settings: 'wdth' 80;
    line-height: 1.0;
    letter-spacing: -0.03em;
    margin-bottom: 1.6rem;
}

.hero__lead {
    font-size: clamp(1.08rem, 1.6vw, 1.22rem);
    color: var(--muted);
    max-width: 36rem;
    margin-bottom: 2.2rem;
    text-wrap: pretty;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 0.8rem; }

/* ===== SEMAINE (composant partagé hero + calculateur) ===== */
.week {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    padding: clamp(1.25rem, 3vw, 1.75rem);
}

.week__head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 0.9rem;
}
.week__title { font-size: 0.92rem; color: var(--muted); }
.week__value {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.45rem;
    color: var(--blue);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.week__bar {
    --hour: calc(100% / 35);
    position: relative;
    display: flex;
    height: 3.25rem;
    border-radius: var(--r-sm);
    overflow: hidden;
    background: var(--paper-2);
}
/* graduation : une case = une heure, un trait plus marqué par journée de 7 h */
.week__bar::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        repeating-linear-gradient(to right, transparent 0 calc(var(--hour) * 7 - 2px), rgba(22, 32, 26, 0.28) calc(var(--hour) * 7 - 2px) calc(var(--hour) * 7)),
        repeating-linear-gradient(to right, transparent 0 calc(var(--hour) - 1px), rgba(255, 255, 255, 0.75) calc(var(--hour) - 1px) var(--hour));
}

.week__seg {
    display: block;
    height: 100%;
    width: 0;
    flex: none;
    transition: width 1.4s var(--ease);
}
.week__seg--saved { background: var(--blue); }
.week__seg--lost { background: var(--amber); }

.week__tasks {
    margin-top: 1.1rem;
    display: grid;
    gap: 0.35rem;
    font-size: 0.92rem;
}
.week__tasks li {
    display: flex;
    justify-content: space-between;
    padding-bottom: 0.35rem;
    border-bottom: 1px dashed var(--line);
}
.week__tasks li span:last-child { font-variant-numeric: tabular-nums; color: var(--muted); }

.week__legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.2rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--muted);
}
.week__legend span { display: inline-flex; align-items: center; gap: 0.45rem; }
.dot { width: 0.7rem; height: 0.7rem; border-radius: 2px; display: inline-block; }
.dot--lost { background: var(--amber); }
.dot--saved { background: var(--blue); }

.week figcaption, .week__note {
    margin-top: 0.9rem;
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.5;
}

/* ===== ENGAGEMENTS ===== */
.pledges {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(1.25rem, 3vw, 2.5rem);
    margin-top: clamp(3rem, 7vw, 5rem);
    padding-top: 1.75rem;
    border-top: 1px solid var(--ink);
}
.pledges li { color: var(--muted); font-size: 0.98rem; max-width: 22rem; }
.pledges strong { display: block; color: var(--ink); font-size: 1.05rem; margin-bottom: 0.2rem; }

/* ===== CAS D'USAGE ===== */
.cases { background: var(--paper-2); }

.cases__table { border-top: 1px solid var(--ink); }

.cases__row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(1.25rem, 4vw, 3.5rem);
    padding-block: 1.35rem;
    border-bottom: 1px solid var(--line);
}
.cases__row p { max-width: 32rem; text-wrap: pretty; }
.cases__row p:first-child {
    color: var(--muted);
    padding-left: 1rem;
    border-left: 3px solid var(--amber);
}
.cases__row p:last-child {
    padding-left: 1rem;
    border-left: 3px solid var(--blue);
}
.cases__row--head {
    padding-block: 0.9rem;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--muted);
}

/* ===== FORFAITS ===== */
.offers__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
    align-items: stretch;
}

.offer {
    display: flex;
    flex-direction: column;
    padding: clamp(1.5rem, 3vw, 2rem);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    background: var(--paper);
}
.offer--featured {
    background: var(--ink);
    color: var(--on-ink);
    border-color: var(--ink);
    position: relative;
}
.offer__flag {
    align-self: flex-start;
    margin-bottom: 1rem;
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    background: var(--blue);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
}

.offer__name {
    font-size: 1.45rem;
    font-weight: 700;
    font-variation-settings: 'wdth' 88;
    margin-bottom: 0.5rem;
}
.offer__for { color: var(--muted); margin-bottom: 1.4rem; min-height: 3.2em; }
.offer--featured .offer__for { color: var(--on-ink-muted); }

.offer__price { display: flex; align-items: baseline; flex-wrap: wrap; gap: 0.35rem; }
.offer__from { font-size: 0.88rem; color: var(--muted); width: 100%; }
.offer--featured .offer__from { color: var(--on-ink-muted); }
.offer__amount {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 750;
    font-variation-settings: 'wdth' 80;
    letter-spacing: -0.02em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}
.offer__unit { font-size: 0.92rem; color: var(--muted); }
.offer--featured .offer__unit { color: var(--on-ink-muted); }

.offer__duration {
    margin-top: 0.6rem;
    padding-bottom: 1.25rem;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--line);
    font-size: 0.92rem;
    font-weight: 500;
}
.offer--featured .offer__duration { border-bottom-color: var(--ink-line); }

.offer__list {
    display: grid;
    gap: 0.6rem;
    align-content: start;
    margin-bottom: 1.75rem;
    flex: 1;
    font-size: 0.97rem;
}
.offer__list li { position: relative; padding-left: 1.5rem; }
.offer__list li::before {
    content: '';
    position: absolute;
    left: 0; top: 0.45em;
    width: 0.8rem; height: 0.45rem;
    border-left: 2px solid var(--blue);
    border-bottom: 2px solid var(--blue);
    transform: rotate(-45deg);
}
.offer--featured .offer__list li::before { border-color: var(--blue-light); }
.offer--featured .btn--primary { background: var(--blue); }

/* forfaits développement mensuels */
.hours {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 1.25rem;
    margin-top: 1.25rem;
    padding: clamp(1.5rem, 3vw, 2rem);
    border-radius: var(--r-md);
    background: var(--paper-2);
}
.hours__title {
    font-size: 1.45rem;
    font-weight: 700;
    font-variation-settings: 'wdth' 88;
    margin-bottom: 0.6rem;
}
.hours__intro p { color: var(--muted); max-width: 26rem; }
.hours__plan {
    display: flex;
    flex-direction: column;
    padding: 1.4rem;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--r-sm);
}
.hours__plan .offer__name { font-size: 1.2rem; margin-bottom: 0.9rem; }
.hours__rate { margin: 0.4rem 0 1.25rem; font-size: 0.9rem; color: var(--muted); flex: 1; }
.hours__included {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.6rem 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
    font-size: 0.95rem;
}
.hours__included li { position: relative; padding-left: 1.5rem; }
.hours__included li::before {
    content: '';
    position: absolute;
    left: 0; top: 0.45em;
    width: 0.8rem; height: 0.45rem;
    border-left: 2px solid var(--blue);
    border-bottom: 2px solid var(--blue);
    transform: rotate(-45deg);
}

.offer-wide {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    margin-top: 1.25rem;
    padding: clamp(1.5rem, 3vw, 2rem);
    border: 1px dashed var(--muted);
    border-radius: var(--r-md);
}
.offer-wide p { color: var(--muted); max-width: 44rem; }
.offer-wide .offer__name { margin-bottom: 0.35rem; }

.offers__note { margin-top: 1.5rem; font-size: 0.9rem; color: var(--muted); }

/* ===== CALCULATEUR ===== */
.calc { background: var(--ink); color: var(--on-ink); }
.calc .section__lead { color: var(--on-ink-muted); }

.calc__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.9fr);
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: start;
}

.calc__block { border: 0; min-width: 0; }
.calc__block + .calc__block { margin-top: 2.25rem; }
.calc__block legend {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 650;
    margin-bottom: 1rem;
}

.calc__tasks-head,
.task {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 8.5rem 8.5rem;
    gap: 1rem;
    align-items: center;
}
.calc__tasks-head {
    font-size: 0.82rem;
    color: var(--on-ink-muted);
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--ink-line);
}

.task {
    padding-block: 0.8rem;
    border-bottom: 1px solid var(--ink-line);
    transition: opacity 160ms ease;
}
.task.is-off .task__num { opacity: 0.35; }

.check { display: flex; align-items: flex-start; gap: 0.7rem; cursor: pointer; }
.check input {
    appearance: none;
    flex: none;
    width: 1.2rem; height: 1.2rem;
    margin-top: 0.18rem;
    border: 1.5px solid var(--on-ink-muted);
    border-radius: 4px;
    display: grid;
    place-content: center;
    cursor: pointer;
}
.check input::before {
    content: '';
    width: 0.62rem; height: 0.34rem;
    border-left: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(-45deg) translate(1px, -1px) scale(0);
    transition: transform 120ms ease;
}
.check input:checked { background: var(--blue); border-color: var(--blue); }
.check input:checked::before { transform: rotate(-45deg) translate(1px, -1px) scale(1); }
.check input:focus-visible { outline: 2px solid var(--blue-light); outline-offset: 2px; }

.task__name { display: block; font-weight: 600; line-height: 1.35; }
.task__hint { display: block; font-size: 0.85rem; color: var(--on-ink-muted); line-height: 1.4; margin-top: 0.15rem; }

.task__num { position: relative; }
.task__num input, .task__num select { width: 100%; }
.task__label { display: none; }

/* champs (calculateur sur fond sombre + formulaire de contact sur fond clair) */
.field { display: grid; gap: 0.4rem; }
.field__label { font-size: 0.9rem; font-weight: 500; }
.field__opt { color: var(--muted); font-weight: 400; }

input[type='number'], input[type='text'], input[type='email'], select, textarea {
    width: 100%;
    padding: 0.65rem 0.8rem;
    border: 1.5px solid var(--line);
    border-radius: var(--r-sm);
    background: #fff;
    color: var(--ink);
    font-variant-numeric: tabular-nums;
    transition: border-color 140ms ease;
}
input:hover, select:hover, textarea:hover { border-color: var(--muted); }
input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue) 25%, transparent);
}
textarea { resize: vertical; min-height: 8rem; line-height: 1.5; }

.calc input[type='number'], .calc select {
    background: var(--ink-2);
    border-color: var(--ink-line);
    color: var(--on-ink);
}
.calc input:hover, .calc select:hover { border-color: var(--on-ink-muted); }
.calc input:focus-visible, .calc select:focus-visible {
    border-color: var(--blue-light);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue-light) 30%, transparent);
}

.field__suffix { position: relative; display: block; }
.field__suffix input { padding-right: 3.6rem; }
.field__suffix span {
    position: absolute;
    right: 0.8rem; top: 50%;
    transform: translateY(-50%);
    font-size: 0.88rem;
    color: var(--on-ink-muted);
    pointer-events: none;
}

.calc__params {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem 1.25rem;
}
.calc__params legend { grid-column: 1 / -1; }
.check--wide { grid-column: 1 / -1; font-size: 0.95rem; margin-top: 0.25rem; }

/* résultats */
.calc__result {
    position: sticky;
    top: 6rem;
    background: var(--paper);
    color: var(--ink);
    border-radius: var(--r-lg);
    padding: clamp(1.5rem, 3vw, 2rem);
}

.calc__big {
    font-family: var(--font-display);
    font-size: clamp(3.75rem, 8vw, 5.5rem);
    font-weight: 800;
    font-variation-settings: 'wdth' 78;
    letter-spacing: -0.04em;
    line-height: 0.95;
    color: var(--blue);
    font-variant-numeric: tabular-nums;
}
.calc__big-label { margin-top: 0.4rem; color: var(--muted); }

.calc__figures {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 1.5rem;
    border-top: 1px solid var(--line);
}
.calc__figures div { padding: 0.85rem 0; border-bottom: 1px solid var(--line); }
.calc__figures div:nth-child(odd) { padding-right: 1rem; }
.calc__figures div:nth-child(even) { padding-left: 1rem; border-left: 1px solid var(--line); }
.calc__figures dt { font-size: 0.82rem; color: var(--muted); }
.calc__figures dd {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.calc__payback {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    margin: 1.25rem 0;
    padding: 0.9rem 1rem;
    background: var(--paper-2);
    border-radius: var(--r-sm);
}
.calc__payback span { font-size: 0.92rem; color: var(--muted); }
.calc__payback strong { font-family: var(--font-display); font-size: 1.3rem; text-align: right; }

.week--calc { padding: 0; border: 0; background: none; margin-bottom: 1.25rem; }
.week--calc .week__bar { height: 2.25rem; }
.week--calc .week__value { font-size: 1.1rem; }

.calc__result .btn--light { background: var(--ink); color: var(--on-ink); }
.calc__result .btn--light:hover { background: var(--ink-2); }

.calc__empty { color: var(--muted); padding-block: 2rem; }
.calc__disclaimer { margin-top: 1rem; font-size: 0.82rem; color: var(--muted); line-height: 1.5; }

/* ===== PROJETS ===== */
.projects__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid var(--ink);
}
.project {
    padding: 2rem 2rem 2rem 0;
    border-bottom: 1px solid var(--line);
}
.project:nth-child(even) { padding: 2rem 0 2rem 2rem; border-left: 1px solid var(--line); }
.project__title { font-size: 1.4rem; font-weight: 700; font-variation-settings: 'wdth' 88; margin-bottom: 0.7rem; }
.project p { color: var(--muted); max-width: 34rem; margin-bottom: 1.1rem; text-wrap: pretty; }

.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tags li {
    padding: 0.2rem 0.65rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-size: 0.82rem;
    color: var(--ink-2);
    background: var(--paper);
}

/* ===== MÉTHODE ===== */
.method { background: var(--paper-2); }
.method__steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
    counter-reset: step;
}
.method__step {
    counter-increment: step;
    padding-top: 1.25rem;
    border-top: 3px solid var(--ink);
}
.method__step::before {
    content: counter(step);
    display: block;
    font-family: var(--font-display);
    font-size: 2.6rem;
    font-weight: 800;
    font-variation-settings: 'wdth' 78;
    line-height: 1;
    color: var(--blue);
    margin-bottom: 0.9rem;
}
.method__step h3 { font-size: 1.2rem; margin-bottom: 0.45rem; }
.method__step p { color: var(--muted); font-size: 0.98rem; }

/* ===== À PROPOS ===== */
.about__grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(2rem, 6vw, 5rem);
}
.about__text p { margin-bottom: 1.1rem; max-width: 38rem; text-wrap: pretty; }
.about__text p:first-child { font-size: 1.2rem; }
.about__text .tags { margin-top: 1.5rem; }

/* ===== FAQ ===== */
.faq { padding-top: 0; }
.faq__grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(2rem, 6vw, 5rem);
    padding-top: var(--section-y);
    background: linear-gradient(var(--line), var(--line)) no-repeat center top / calc(100% - 2 * var(--gutter)) 1px;
}
.faq__list { border-top: 1px solid var(--ink); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.15rem 0;
    font-weight: 600;
    font-size: 1.06rem;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
    content: '';
    flex: none;
    width: 0.65rem; height: 0.65rem;
    margin-top: 0.4rem;
    border-right: 2px solid var(--ink);
    border-bottom: 2px solid var(--ink);
    transform: rotate(45deg);
    transition: transform 200ms ease;
}
.faq__item[open] summary::after { transform: rotate(-135deg); margin-top: 0.7rem; }
.faq__item p { padding-bottom: 1.25rem; color: var(--muted); max-width: 40rem; }

/* ===== CONTACT ===== */
.contact { background: var(--paper-2); }
.contact__grid {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(2rem, 6vw, 5rem);
    align-items: start;
}
.contact__mail {
    display: inline-block;
    margin-top: 1.75rem;
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 2.2vw, 1.5rem);
    font-weight: 650;
    color: var(--blue);
    text-decoration-thickness: 1.5px;
    text-underline-offset: 0.25em;
    overflow-wrap: anywhere;
}

.contact__form {
    display: grid;
    gap: 1.1rem;
    padding: clamp(1.5rem, 3vw, 2.25rem);
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
}
.contact__form .btn { justify-self: start; }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.1rem; }
.form__note { font-size: 0.85rem; color: var(--muted); }
.form__error {
    padding: 0.7rem 0.9rem;
    border-left: 3px solid #B3261E;
    background: #F9E3E1;
    color: #7A1A14;
    font-size: 0.92rem;
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
}
.field--invalid input, .field--invalid textarea { border-color: #B3261E; }

/* ===== PIED DE PAGE ===== */
.footer { background: var(--ink); color: var(--on-ink-muted); padding-block: 3rem; }
.footer__grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1.5rem 2rem;
    align-items: start;
}
.footer__tagline { margin-top: 0.6rem; font-size: 0.95rem; }
.footer__nav { display: flex; flex-wrap: wrap; gap: 0.6rem 1.5rem; font-size: 0.95rem; }
.footer__nav a, .footer__legal-btn { color: var(--on-ink); text-decoration: none; }
.footer__nav a:hover, .footer__legal-btn:hover { text-decoration: underline; text-underline-offset: 0.2em; }
.footer__copy {
    grid-column: 1 / -1;
    padding-top: 1.5rem;
    border-top: 1px solid var(--ink-line);
    font-size: 0.85rem;
}
.footer :focus-visible { outline-color: var(--blue-light); }

/* ===== MENTIONS LÉGALES ===== */
.legal {
    margin: auto;
    width: min(40rem, calc(100% - 2rem));
    max-height: calc(100% - 2rem);
    border: 0;
    border-radius: var(--r-lg);
    background: var(--paper);
    color: var(--ink);
    padding: 0;
}
.legal::backdrop { background: rgba(22, 32, 26, 0.55); }
.legal__inner { padding: clamp(1.5rem, 4vw, 2.5rem); }
.legal h2 { font-size: 1.8rem; margin-bottom: 1.25rem; }
.legal h3 { font-size: 1.05rem; margin: 1.25rem 0 0.35rem; }
.legal p { font-size: 0.95rem; color: var(--muted); }
.legal .btn { margin-top: 1.75rem; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1040px) {
    .nav__menu { gap: 1.1rem; }
    .nav__link { font-size: 0.9rem; }
}

@media (max-width: 960px) {
    .nav__cta { display: none; }
    .nav__burger {
        display: grid;
        gap: 6px;
        margin-left: auto;
        width: 2.75rem; height: 2.75rem;
        place-content: center;
    }
    .nav__burger span { display: block; width: 1.4rem; height: 2px; background: var(--ink); transition: transform 200ms ease; }
    .nav__burger[aria-expanded='true'] span:first-child { transform: translateY(4px) rotate(45deg); }
    .nav__burger[aria-expanded='true'] span:last-child { transform: translateY(-4px) rotate(-45deg); }

    .nav__menu {
        position: fixed;
        inset: 4.5rem 0 auto 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0.5rem var(--gutter) 1.5rem;
        background: var(--paper);
        border-bottom: 1px solid var(--line);
        box-shadow: 0 20px 30px -20px rgba(22, 32, 26, 0.35);
        display: none;
    }
    .nav__menu.is-open { display: flex; }
    .nav__link { display: block; padding: 0.9rem 0; font-size: 1.05rem; color: var(--ink); border-bottom: 1px solid var(--line); }
    .nav__link:hover, .nav__link.is-active { border-bottom-color: var(--line); }
    .nav__menu-cta { display: block; margin-top: 1.25rem; }
    .nav__menu-cta .btn { width: 100%; }

    .hero__grid, .calc__grid, .about__grid, .faq__grid, .contact__grid { grid-template-columns: minmax(0, 1fr); }
    .offers__grid { grid-template-columns: 1fr; max-width: 36rem; }
    .offer__for { min-height: 0; }
    .hours { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
    .hours__intro { grid-column: 1 / -1; }
    .hours__included { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
    .method__steps { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem 1.5rem; }
    .calc__result { position: static; }
}

@media (max-width: 720px) {
    .pledges { grid-template-columns: 1fr; gap: 1.1rem; }
    .cases__row { grid-template-columns: 1fr; gap: 0.75rem; }
    .cases__row--head { display: none; }
    .cases__row p:first-child::before { content: "Aujourd'hui"; display: block; font-size: 0.8rem; font-weight: 600; color: var(--muted); margin-bottom: 0.15rem; }
    .cases__row p:last-child::before { content: 'Après'; display: block; font-size: 0.8rem; font-weight: 600; color: var(--blue); margin-bottom: 0.15rem; }

    .offer-wide { flex-direction: column; align-items: flex-start; }
    .hours, .hours__included { grid-template-columns: minmax(0, 1fr); }
    .projects__list { grid-template-columns: 1fr; }
    .project, .project:nth-child(even) { padding: 1.75rem 0; border-left: 0; }

    .calc__tasks-head { display: none; }
    .task { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0.6rem 0.9rem; }
    .task .check { grid-column: 1 / -1; }
    .task__label { display: block; font-size: 0.78rem; color: var(--on-ink-muted); margin-bottom: 0.25rem; }
    .calc__params { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }

    .form__row { grid-template-columns: 1fr; }
    .contact__form .btn { justify-self: stretch; }
    .footer__grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .method__steps { grid-template-columns: 1fr; }
    .calc__params { grid-template-columns: 1fr; }
    .hero__actions .btn { width: 100%; }
    .calc__figures { grid-template-columns: 1fr; }
    .calc__figures div:nth-child(odd), .calc__figures div:nth-child(even) { padding: 0.75rem 0; border-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}