/* =====================================================================
   OOS Technologies — Feuille de style principale
   ---------------------------------------------------------------------
   Sommaire :
     1.  Variables (couleurs, typographie, espacements)
     2.  Réinitialisation & base
     3.  Utilitaires (container, sr-only, reveal…)
     4.  Boutons
     5.  En-tête & navigation
     6.  Pied de page
     7.  Sections génériques
     8.  Hero (accueil)
     9.  Cartes / services
     10. Bandeau statistiques
     11. Étapes (méthode)
     12. Tags / secteurs
     13. Témoignages
     14. Bandeau CTA
     15. Pages internes (page-hero, prose, service-block)
     16. Formulaire de contact
     17. Divers (404)
     18. Responsive
   ===================================================================== */

/* 1. VARIABLES ------------------------------------------------------- */
:root {
    color-scheme: light dark;   /* champs, ascenseurs… suivent le thème */

    /* Couleurs de marque — identiques en clair et en sombre */
    --navy:        #16233F;   /* bandeaux foncés (stats, footer, CTA) */
    --navy-600:    #1F3157;
    --navy-400:    #33456B;
    --orange:      #F26A21;
    --orange-600:  #D95A15;
    --orange-100:  #FDE9DD;   /* fond des pastilles d'icônes */

    /* --- Thème CLAIR (valeurs par défaut) --------------------------- */
    --bg:      #FFFFFF;        /* fond de page     */
    --white:   #FFFFFF;        /* cartes, en-tête  */
    --field:   #FFFFFF;        /* champs de formulaire */
    --cloud:   #F4F7FB;        /* sections alternées */
    --ink:     #0E1A2B;        /* texte courant    */
    --heading: var(--navy);    /* titres           */
    --slate:   #5A6B82;        /* texte secondaire */
    --line:    #E3E9F2;        /* bordures         */

    --header-bg: rgba(255, 255, 255, .9);
    --shadow:    0 18px 40px -18px rgba(22, 35, 63, 0.28);
    --shadow-sm: 0 6px 20px -10px rgba(22, 35, 63, 0.25);

    --field-error:        #C0392B;
    --alert-success-bg:   #E6F4EA;
    --alert-success-fg:   #1E7F3C;
    --alert-success-bd:   #B7E1C4;
    --alert-error-bg:     #FDECEA;
    --alert-error-fg:     #B23A2E;
    --alert-error-bd:     #F5C6C0;

    /* Typographie */
    --font-titre: "Space Grotesk", "Segoe UI", Tahoma, sans-serif;
    --font-texte: "Inter", "Segoe UI", Tahoma, Arial, sans-serif;

    /* Mise en page */
    --container: 1120px;
    --radius:    14px;
    --radius-sm: 9px;

    --space-section: clamp(3.5rem, 8vw, 6rem);
}

/* =====================================================================
   THÈME SOMBRE
   Activé automatiquement quand le système / navigateur de l'internaute
   est réglé en mode sombre (prefers-color-scheme). Il suffit de
   redéfinir les variables : toute la feuille de style s'y adapte.
   Pour ajuster le rendu sombre, modifiez uniquement ce bloc.
   ===================================================================== */
@media (prefers-color-scheme: dark) {
    :root {
        --bg:      #0E1622;   /* fond de page                           */
        --white:   #17222F;   /* "surfaces" : cartes, en-tête           */
        --field:   #101B29;   /* champs (un cran plus sombre que la carte) */
        --cloud:   #131E2D;   /* sections alternées                     */
        --ink:     #E6EBF2;   /* texte courant                          */
        --heading: #F3F6FA;   /* titres                                 */
        --slate:   #9DAEC2;   /* texte secondaire                       */
        --line:    #2A3646;   /* bordures                               */

        --orange-100: rgba(242, 106, 33, .16);

        --header-bg: rgba(14, 22, 34, .85);
        --shadow:    0 18px 40px -18px rgba(0, 0, 0, .6);
        --shadow-sm: 0 6px 20px -10px rgba(0, 0, 0, .55);

        --field-error:      #E67F73;
        --alert-success-bg: #14301F;
        --alert-success-fg: #7BD59A;
        --alert-success-bd: #245638;
        --alert-error-bg:   #3A1B18;
        --alert-error-fg:   #F0A79E;
        --alert-error-bd:   #6B322B;
    }

    /* L'illustration du hero garde des cartes claires : léger adoucissement */
    .hero__visuel img { opacity: .96; }
}

/* 2. RÉINITIALISATION & BASE -------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-texte);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-family: var(--font-titre);
    line-height: 1.15;
    color: var(--heading);
    margin: 0 0 .5em;
}

p { margin: 0 0 1rem; }

a { color: var(--orange-600); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

ul { margin: 0; padding: 0; list-style: none; }

/* 3. UTILITAIRES -------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: clamp(1.1rem, 4vw, 2rem);
}

.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    left: 1rem;
    top: -3rem;
    background: var(--navy);
    color: #FFFFFF;
    padding: .6rem 1rem;
    border-radius: var(--radius-sm);
    z-index: 200;
    transition: top .2s;
}
.skip-link:focus { top: 1rem; }

/* Apparition au défilement (activée par assets/js/main.js) */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .6s ease, transform .6s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}

.icon { width: 100%; height: 100%; }

/* 4. BOUTONS ---------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-family: var(--font-titre);
    font-weight: 600;
    font-size: .95rem;
    line-height: 1;
    padding: .85rem 1.5rem;
    border-radius: 999px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform .15s ease, background-color .15s ease, border-color .15s ease, color .15s ease;
    text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }

.btn--primary { background: var(--orange); color: #FFFFFF; }
.btn--primary:hover { background: var(--orange-600); }

.btn--ghost { border-color: currentColor; color: var(--heading); background: transparent; }
.btn--ghost:hover { background: var(--navy); color: #FFFFFF; border-color: var(--navy); }

.btn--sm { padding: .6rem 1.1rem; font-size: .85rem; }
.btn--lg { padding: 1rem 1.9rem; font-size: 1rem; }

/* 5. EN-TÊTE & NAVIGATION ------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color .2s, box-shadow .2s;
}
.site-header.is-stuck {
    border-color: var(--line);
    box-shadow: var(--shadow-sm);
}
.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: 74px;
}
.site-header__brand { display: inline-flex; }
.site-header__brand img { height: 38px; width: auto; }

.site-nav__list {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}
.site-nav__link {
    font-family: var(--font-titre);
    font-weight: 500;
    font-size: .95rem;
    color: var(--heading);
    padding: .4rem 0;
    position: relative;
}
.site-nav__link:hover { text-decoration: none; color: var(--orange-600); }
.site-nav__link.is-active { color: var(--orange-600); }
.site-nav__link.is-active::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -2px;
    height: 2px;
    background: var(--orange);
    border-radius: 2px;
}

.nav-toggle {
    display: none;
    width: 44px; height: 44px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--white);
    position: relative;
    cursor: pointer;
}
.nav-toggle__bar,
.nav-toggle__bar::before,
.nav-toggle__bar::after {
    content: "";
    position: absolute;
    left: 50%;
    width: 20px; height: 2px;
    background: var(--heading);
    transform: translateX(-50%);
    transition: transform .2s;
}
.nav-toggle__bar { top: 50%; margin-top: -1px; }
.nav-toggle__bar::before { top: -6px; }
.nav-toggle__bar::after  { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before { transform: translateX(-50%) translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::after  { transform: translateX(-50%) translateY(-6px) rotate(-45deg); }

/* 6. PIED DE PAGE -------------------------------------------- */
.site-footer {
    background: var(--navy);
    color: rgba(255, 255, 255, .82);
    padding-top: clamp(3rem, 6vw, 4.5rem);
    margin-top: var(--space-section);
}
.site-footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 2.5rem;
    padding-bottom: 2.5rem;
}
.site-footer__logo { height: 38px; width: auto; margin-bottom: 1rem; }
.site-footer__baseline { max-width: 32ch; color: rgba(255, 255, 255, .7); }
.site-footer__title {
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: rgba(255, 255, 255, .55);
    margin-bottom: 1rem;
}
.site-footer__list li { margin-bottom: .5rem; }
.site-footer__list a { color: rgba(255, 255, 255, .82); }
.site-footer__list a:hover { color: #FFFFFF; }

.site-footer__bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .5rem;
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, .12);
    font-size: .85rem;
}
.site-footer__bottom p { margin: 0; }
.site-footer__bottom a { color: rgba(255, 255, 255, .82); }
.site-footer__legal { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; }

/* 7. SECTIONS GÉNÉRIQUES ----------------------------------- */
.section { padding-block: var(--space-section); }
.section--muted { background: var(--cloud); }
.section--center { text-align: center; }

.section__head {
    max-width: 62ch;
    margin-bottom: 3rem;
}
.section--center .section__head { margin-inline: auto; }

.section__eyebrow {
    font-family: var(--font-titre);
    font-weight: 600;
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--orange-600);
    margin-bottom: .75rem;
}
.section__title { font-size: clamp(1.7rem, 3.5vw, 2.4rem); }
.section__lead,
.section__more { color: var(--slate); font-size: 1.05rem; }
.section__more { margin-top: 2.5rem; }

.link-arrow {
    font-family: var(--font-titre);
    font-weight: 600;
}

/* 8. HERO ------------------------------------------------- */
.hero {
    background:
        radial-gradient(120% 120% at 100% 0%, rgba(242, 106, 33, .10) 0%, transparent 45%),
        linear-gradient(180deg, var(--cloud) 0%, var(--white) 100%);
    padding-block: clamp(3rem, 7vw, 5.5rem);
    overflow: hidden;
}
.hero__inner {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
}
.hero__surtitre {
    font-family: var(--font-titre);
    font-weight: 600;
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--orange-600);
    margin-bottom: 1rem;
}
.hero__titre {
    font-size: clamp(2.1rem, 5vw, 3.3rem);
    margin-bottom: 1.1rem;
}
.hero__desc {
    font-size: 1.12rem;
    color: var(--slate);
    max-width: 46ch;
    margin-bottom: 2rem;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero__visuel img { width: 100%; filter: drop-shadow(var(--shadow)); }

/* 9. CARTES / SERVICES --------------------------------- */
.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 2rem 1.75rem;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: transparent;
}
.card__icon {
    display: inline-flex;
    width: 52px; height: 52px;
    padding: 13px;
    border-radius: var(--radius-sm);
    background: var(--orange-100);
    color: var(--orange-600);
    margin-bottom: 1.25rem;
}
.card__title { font-size: 1.2rem; }
.card__text { color: var(--slate); margin-bottom: 1.25rem; }
.card__link {
    font-family: var(--font-titre);
    font-weight: 600;
    font-size: .9rem;
}
.card--plain:hover { transform: none; box-shadow: var(--shadow-sm); }

/* 10. BANDEAU STATISTIQUES ---------------------------- */
.stats-band {
    background: var(--navy);
    color: #FFFFFF;
    padding-block: clamp(2.5rem, 5vw, 3.5rem);
}
.stats-band__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}
.stat { text-align: center; }
.stat__value {
    display: block;
    font-family: var(--font-titre);
    font-weight: 700;
    font-size: clamp(2rem, 4vw, 2.8rem);
    color: var(--orange);
    line-height: 1;
    margin-bottom: .5rem;
}
.stat__label { font-size: .92rem; color: rgba(255, 255, 255, .75); }

/* 11. ÉTAPES (MÉTHODE) ------------------------------- */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    list-style: none;   /* masque la numérotation par défaut du <ol> */
    margin: 0;
    padding: 0;
}
.steps--lg { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.step {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.75rem;
}
.section--muted .step { background: var(--white); }
.step__num {
    font-family: var(--font-titre);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--orange);
    display: inline-block;
    margin-bottom: .75rem;
}
.step__title { font-size: 1.15rem; }
.step__text { color: var(--slate); margin: 0; }

/* 12. TAGS / SECTEURS ------------------------------ */
.tags { display: flex; flex-wrap: wrap; gap: .75rem; }
.tag {
    font-family: var(--font-titre);
    font-weight: 500;
    font-size: .95rem;
    color: var(--heading);
    background: var(--cloud);
    border: 1px solid var(--line);
    padding: .6rem 1.1rem;
    border-radius: 999px;
}
.section--muted .tag { background: var(--white); }

/* 13. TÉMOIGNAGES --------------------------------- */
.quotes {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}
.quote {
    margin: 0;
    background: var(--white);
    border: 1px solid var(--line);
    border-left: 4px solid var(--orange);
    border-radius: var(--radius);
    padding: 2rem;
}
.quote__text {
    font-family: var(--font-titre);
    font-weight: 500;
    font-size: 1.15rem;
    color: var(--heading);
    margin: 0 0 1.25rem;
}
.quote__cite { font-size: .9rem; color: var(--slate); font-style: normal; }

/* 14. BANDEAU CTA ------------------------------- */
.cta-band {
    background:
        radial-gradient(120% 160% at 0% 0%, var(--navy-600) 0%, var(--navy) 55%);
    color: #FFFFFF;
}
.cta-band__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding-block: clamp(2.5rem, 6vw, 4rem);
    flex-wrap: wrap;
}
.cta-band__title { color: #FFFFFF; font-size: clamp(1.5rem, 3vw, 2rem); }
.cta-band__text { color: rgba(255, 255, 255, .8); max-width: 52ch; margin: 0; }

/* 15. PAGES INTERNES --------------------------- */
.page-hero {
    background: var(--cloud);
    padding-block: clamp(3rem, 7vw, 5rem);
    border-bottom: 1px solid var(--line);
}
.page-hero__eyebrow {
    font-family: var(--font-titre);
    font-weight: 600;
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--orange-600);
    margin-bottom: .75rem;
}
.page-hero__title { font-size: clamp(2rem, 4.5vw, 3rem); }
.page-hero__lead {
    font-size: 1.15rem;
    color: var(--slate);
    max-width: 60ch;
    margin: 0;
}

.prose { max-width: 68ch; }
.prose h2 { margin-top: 2.25rem; font-size: 1.4rem; }
.prose p  { color: var(--ink); }
.prose ul { margin: 0 0 1rem; padding-left: 1.4rem; list-style: disc; }
.prose li { margin-bottom: .4rem; }
.prose__seealso { margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line); font-size: .95rem; }

/* Encadré « en bref » (rappel RGPD) */
.callout {
    background: var(--cloud);
    border: 1px solid var(--line);
    border-left: 4px solid var(--orange);
    border-radius: var(--radius);
    padding: 1.5rem 1.75rem;
    margin-bottom: 2.5rem;
}
.callout h2 { margin-top: 0; font-size: 1.15rem; }
.callout ul { margin-bottom: 1rem; padding-left: 1.4rem; list-style: disc; }
.callout p:last-child { margin-bottom: 0; }

/* Bloc service (page Services) */
.service-block { padding-block: var(--space-section); }
.service-block--alt { background: var(--cloud); }
.service-block__inner {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}
.service-block__icon {
    display: inline-flex;
    width: 56px; height: 56px;
    padding: 14px;
    border-radius: var(--radius-sm);
    background: var(--navy);
    color: #FFFFFF;
    margin-bottom: 1.25rem;
}
.service-block__title { font-size: clamp(1.6rem, 3.5vw, 2.1rem); }
.service-block__accroche {
    font-family: var(--font-titre);
    font-weight: 500;
    font-size: 1.15rem;
    color: var(--orange-600);
}
.service-block__text { color: var(--slate); margin-bottom: 1.75rem; }
.service-block__list {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
}
.service-block__list-title {
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--slate);
    margin-bottom: 1rem;
}
.check-list li {
    position: relative;
    padding-left: 1.9rem;
    margin-bottom: .85rem;
    color: var(--ink);
}
.check-list li::before {
    content: "";
    position: absolute;
    left: 0; top: .3rem;
    width: 18px; height: 18px;
    border-radius: 50%;
    background: var(--orange-100);
    box-shadow: inset 0 0 0 2px var(--orange);
}
.check-list li::after {
    content: "";
    position: absolute;
    left: 6px; top: .55rem;
    width: 6px; height: 3px;
    border-left: 2px solid var(--orange-600);
    border-bottom: 2px solid var(--orange-600);
    transform: rotate(-45deg);
}

/* 16. FORMULAIRE DE CONTACT -------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}
.contact-info h2 { font-size: 1.3rem; }
.contact-info__list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--line);
}
.contact-info__label {
    display: block;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--slate);
    margin-bottom: .2rem;
}

.contact-form-wrap {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: clamp(1.5rem, 4vw, 2.5rem);
    box-shadow: var(--shadow-sm);
}
.form__row { margin-bottom: 1.25rem; }
.form__label {
    display: block;
    font-family: var(--font-titre);
    font-weight: 500;
    font-size: .9rem;
    margin-bottom: .4rem;
}
.form__label span { color: var(--orange-600); }
.form__input {
    width: 100%;
    font-family: inherit;
    font-size: 1rem;
    color: var(--ink);
    padding: .8rem .9rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--field);
    transition: border-color .15s, box-shadow .15s;
}
.form__input:focus {
    outline: none;
    border-color: var(--orange);
    box-shadow: 0 0 0 3px var(--orange-100);
}
.form__input.is-invalid { border-color: var(--field-error); }
.form__textarea { resize: vertical; min-height: 140px; }
.form__error { color: var(--field-error); font-size: .85rem; margin: .35rem 0 0; }
.form__hint { font-size: .82rem; color: var(--slate); margin: .35rem 0 0; }
.form__legal { font-size: .82rem; color: var(--slate); }

/* Menu déroulant : flèche personnalisée */
select.form__input {
    appearance: none;
    -webkit-appearance: none;
    /* Flèche en gris moyen : lisible aussi bien en clair qu'en sombre */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238A97A8' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}
.form__honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.alert {
    padding: 1rem 1.15rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    font-size: .95rem;
}
.alert--success { background: var(--alert-success-bg); color: var(--alert-success-fg); border: 1px solid var(--alert-success-bd); }
.alert--error   { background: var(--alert-error-bg);   color: var(--alert-error-fg);   border: 1px solid var(--alert-error-bd); }

/* 17. DIVERS ---------------------------------- */
.error-code {
    font-family: var(--font-titre);
    font-weight: 700;
    font-size: clamp(3.5rem, 12vw, 6rem);
    color: var(--orange);
    line-height: 1;
    margin: 0 0 .5rem;
}

/* 18. RESPONSIVE ----------------------------- */
@media (max-width: 960px) {
    .hero__inner { grid-template-columns: 1fr; }
    .hero__visuel { order: -1; max-width: 460px; }
    .cards { grid-template-columns: repeat(2, 1fr); }
    .stats-band__grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .quotes { grid-template-columns: 1fr; }
    .service-block__inner { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .site-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
    .nav-toggle { display: block; }
    .site-nav {
        position: fixed;
        inset: 74px 0 auto 0;
        background: var(--white);
        border-bottom: 1px solid var(--line);
        box-shadow: var(--shadow);
        padding: 1rem clamp(1.1rem, 4vw, 2rem) 1.5rem;
        display: none;
    }
    .site-nav.is-open { display: block; }
    .site-nav__list { flex-direction: column; align-items: stretch; gap: .25rem; }
    .site-nav__link { display: block; padding: .8rem 0; border-bottom: 1px solid var(--line); }
    .site-nav__link.is-active::after { display: none; }
    .site-nav__cta { margin-top: .75rem; }
    .site-nav__cta .btn { width: 100%; justify-content: center; }

    .cards { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .steps--lg { grid-template-columns: 1fr; }
    .cta-band__inner { flex-direction: column; align-items: flex-start; }
    .site-footer__grid { grid-template-columns: 1fr; }
}