/* =========================================================
   Navbar — header flottant + menu mobile plein écran
   ========================================================= */

/* ---------- Barre de progression de lecture ---------- */
.kc-progress {
    position: fixed;
    inset: 0 0 auto 0;
    height: 2px;
    z-index: 1100;
    pointer-events: none;
}

.kc-progress__bar {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--kc-gold-600), var(--kc-gold));
    transform: scaleX(0);
    transform-origin: left center;
    will-change: transform;
}

/* ---------- Header ---------- */
.kc-header {
    position: fixed;
    top: 14px;
    left: 0;
    right: 0;
    z-index: 1050;
    padding-inline: 16px;
    font-family: var(--kc-font);
    transition: transform 0.45s var(--kc-ease);
}

.kc-header.is-hidden {
    transform: translateY(calc(-100% - 24px));
}

.kc-nav {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1.5rem;
    max-width: var(--kc-container);
    height: 68px;
    margin-inline: auto;
    padding: 0 10px 0 22px;
    border: 1px solid rgba(255, 255, 255, 0.65);
    border-radius: var(--kc-radius-lg);
    background: rgba(255, 255, 255, 0.72);
    -webkit-backdrop-filter: blur(18px) saturate(1.6);
    backdrop-filter: blur(18px) saturate(1.6);
    box-shadow:
        0 1px 0 rgba(15, 27, 45, 0.03),
        0 10px 32px -14px rgba(15, 27, 45, 0.16);
    transition:
        height var(--kc-duration) var(--kc-ease),
        background-color var(--kc-duration) var(--kc-ease),
        border-color var(--kc-duration) var(--kc-ease),
        box-shadow var(--kc-duration) var(--kc-ease);
}

.kc-header.is-scrolled .kc-nav {
    height: 60px;
    border-color: var(--kc-border);
    background: rgba(255, 255, 255, 0.88);
    box-shadow: var(--kc-shadow-md);
}

.kc-header.is-menu-open .kc-nav {
    border-color: var(--kc-border);
    background: #fff;
    box-shadow: none;
}

/* ---------- Logo ---------- */
.kc-nav__brand {
    display: inline-flex;
    align-items: center;
    border-radius: var(--kc-radius-sm);
}

.kc-nav__brand:focus-visible {
    outline: 2px solid var(--kc-gold-ring);
    outline-offset: 4px;
}

.kc-nav__logo {
    display: block;
    width: auto;
    height: 42px;
    transition: height var(--kc-duration) var(--kc-ease);
}

.kc-header.is-scrolled .kc-nav__logo {
    height: 36px;
}

/* ---------- Liens desktop ---------- */
.kc-nav__links {
    position: relative;
    justify-self: center;
}

.kc-nav__links ul {
    display: flex;
    align-items: center;
    gap: 2px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.kc-nav__indicator {
    position: absolute;
    top: calc(50% - 19px);
    left: 0;
    width: 0;
    height: 38px;
    border-radius: var(--kc-radius-pill);
    background: var(--kc-gold-soft);
    opacity: 0;
    pointer-events: none;
    transition:
        transform 0.4s var(--kc-ease),
        width 0.4s var(--kc-ease),
        opacity 0.25s ease;
}

.kc-nav__link {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    height: 38px;
    padding: 0 1rem;
    border-radius: var(--kc-radius-pill);
    color: var(--kc-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    text-decoration: none;
    white-space: nowrap;
    transition: color 0.25s ease;
}

.kc-nav__link:hover,
.kc-nav__link.is-active {
    color: var(--kc-ink);
}

.kc-nav__link::after {
    content: "";
    position: absolute;
    bottom: 3px;
    left: 50%;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--kc-gold);
    transform: translateX(-50%) scale(0);
    transition: transform 0.3s var(--kc-ease);
}

.kc-nav__link.is-active::after {
    transform: translateX(-50%) scale(1);
}

.kc-nav__link:focus-visible {
    outline: 2px solid var(--kc-gold-ring);
    outline-offset: 2px;
}

/* ---------- Actions (langue, CTA, burger) ---------- */
.kc-nav__actions {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-self: end;
}

.kc-lang {
    display: inline-flex;
    align-items: center;
    padding: 3px;
    border-radius: var(--kc-radius-pill);
    background: rgba(15, 27, 45, 0.05);
}

.kc-lang__option {
    padding: 0.35rem 0.65rem;
    border-radius: var(--kc-radius-pill);
    color: var(--kc-text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    line-height: 1;
    text-decoration: none;
    transition: color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.kc-lang__option:hover {
    color: var(--kc-ink);
}

.kc-lang__option.is-active {
    background: #fff;
    color: var(--kc-ink);
    box-shadow: var(--kc-shadow-sm);
}

.kc-lang__option:focus-visible {
    outline: 2px solid var(--kc-gold-ring);
    outline-offset: 1px;
}

/* ---------- Burger ---------- */
.kc-burger {
    display: none;
    position: relative;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    border-radius: var(--kc-radius-md);
    background: rgba(15, 27, 45, 0.05);
    cursor: pointer;
    transition: background-color 0.25s ease;
}

.kc-burger:hover {
    background: rgba(15, 27, 45, 0.09);
}

.kc-burger:focus-visible {
    outline: 2px solid var(--kc-gold-ring);
    outline-offset: 2px;
}

.kc-burger__line {
    position: absolute;
    left: 13px;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--kc-ink);
    transition: transform 0.4s var(--kc-ease), top 0.4s var(--kc-ease);
}

.kc-burger__line:nth-child(1) { top: 18px; }
.kc-burger__line:nth-child(2) { top: 24px; }

.kc-burger[aria-expanded="true"] .kc-burger__line:nth-child(1) {
    top: 21px;
    transform: rotate(45deg);
}

.kc-burger[aria-expanded="true"] .kc-burger__line:nth-child(2) {
    top: 21px;
    transform: rotate(-45deg);
}

/* ---------- Menu mobile ---------- */
.kc-mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 1040;
    background: #fff;
    font-family: var(--kc-font);
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.35s var(--kc-ease), visibility 0s linear 0.35s;
}

.kc-mobile-menu.is-open {
    visibility: visible;
    opacity: 1;
    transition: opacity 0.35s var(--kc-ease), visibility 0s;
}

.kc-mobile-menu__inner {
    display: flex;
    flex-direction: column;
    max-width: 640px;
    height: 100%;
    margin-inline: auto;
    padding: 108px 24px 32px;
    overflow-y: auto;
}

.kc-mobile-menu__eyebrow {
    margin: 0 0 0.75rem;
    color: var(--kc-text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.kc-mobile-menu__links {
    margin: 0;
    padding: 0;
    list-style: none;
}

.kc-mobile-menu__links li,
.kc-mobile-menu__footer {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s var(--kc-ease), transform 0.5s var(--kc-ease);
}

.kc-mobile-menu.is-open .kc-mobile-menu__links li,
.kc-mobile-menu.is-open .kc-mobile-menu__footer {
    opacity: 1;
    transform: none;
    transition-delay: calc(0.08s + var(--i) * 0.05s);
}

.kc-mobile-menu__link {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    padding: 1.1rem 0;
    border-bottom: 1px solid var(--kc-border);
    color: var(--kc-ink);
    text-decoration: none;
}

.kc-mobile-menu__index {
    min-width: 1.75rem;
    color: var(--kc-gold-700);
    font-size: 0.8rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.kc-mobile-menu__label {
    font-size: clamp(1.6rem, 6.5vw, 2.25rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
    transition: color 0.25s ease, transform 0.35s var(--kc-ease);
}

.kc-mobile-menu__link .bi {
    margin-left: auto;
    align-self: center;
    color: var(--kc-text-muted);
    font-size: 1.1rem;
    transition: color 0.25s ease, transform 0.35s var(--kc-ease);
}

.kc-mobile-menu__link:hover .kc-mobile-menu__label,
.kc-mobile-menu__link:focus-visible .kc-mobile-menu__label {
    transform: translateX(6px);
}

.kc-mobile-menu__link:hover .bi,
.kc-mobile-menu__link:focus-visible .bi {
    color: var(--kc-gold-700);
    transform: translate(2px, -2px);
}

.kc-mobile-menu__link.is-active .kc-mobile-menu__label {
    color: var(--kc-gold-700);
}

.kc-mobile-menu__link:focus-visible {
    outline: none;
}

.kc-mobile-menu__footer {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-top: auto;
    padding-top: 2rem;
}

.kc-mobile-menu__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.kc-mobile-menu__mail {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--kc-text-muted);
    font-size: 0.9rem;
    text-decoration: none;
    transition: color 0.25s ease;
}

.kc-mobile-menu__mail:hover {
    color: var(--kc-ink);
}

/* ---------- Responsive ---------- */
@media (max-width: 1099.98px) {
    .kc-nav { gap: 1rem; }
    .kc-nav__link { padding: 0 0.75rem; }
}

@media (max-width: 991.98px) {
    :root { --kc-header-offset: 84px; }

    .kc-header { top: 10px; padding-inline: 12px; }

    .kc-nav,
    .kc-header.is-scrolled .kc-nav {
        height: 60px;
        padding: 0 8px 0 16px;
    }

    .kc-nav__logo,
    .kc-header.is-scrolled .kc-nav__logo {
        height: 36px;
    }

    .kc-nav__links,
    .kc-nav__lang {
        display: none;
    }

    .kc-burger {
        display: inline-block;
    }
}

@media (max-width: 575.98px) {
    .kc-nav__cta {
        display: none;
    }
}

@media (min-width: 992px) {
    .kc-mobile-menu {
        display: none;
    }
}