/* ============================================================
   NAVBAR – Adé Education
   ============================================================ */

:root {
    --nav-height: 100px;

    /* Palette navbar */
    --nav-bg: rgba(20, 30, 40, 0.60);       /* fond flouté semi-transparent */
    --nav-bg-scrolled: rgba(15, 22, 30, 0.92);
    --nav-link: #ffffff;
    --nav-link-hover: #4ecdc4;              /* turquoise de la marque */
    --nav-link-active: #4ecdc4;
    --nav-cta-border: rgba(255, 255, 255, 0.35);
    --nav-cta-border-hover: #4ecdc4;

    /* Typo */
    --nav-font: 'Kidmania', 'Nunito', sans-serif;
    --nav-font-size: 1.02rem;
    --nav-font-weight: 700;
    --nav-letter-spacing: 0.08em;

    /* Transitions */
    --nav-transition: 0.25s ease;
}

/* ---- Structure ---- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: var(--nav-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: background var(--nav-transition), box-shadow var(--nav-transition);
}

.navbar.is-scrolled {
    background: var(--nav-bg-scrolled);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.30);
}

.navbar__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0 1.5rem;
}

/* ---- Logo ---- */
.navbar__logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}

.navbar__logo-img {
    height: 76px;
    width: auto;
    object-fit: contain;
    transition: opacity var(--nav-transition), transform var(--nav-transition);
}

.navbar__logo:hover .navbar__logo-img,
.navbar__logo:focus-visible .navbar__logo-img {
    opacity: 0.85;
    transform: scale(1.03);
}

/* ---- Menu ---- */
.navbar__menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* ---- Liens ---- */
.navbar__link {
    display: inline-block;
    padding: 0.55rem 1.05rem;
    font-family: var(--nav-font);
    font-size: var(--nav-font-size);
    font-weight: var(--nav-font-weight);
    letter-spacing: var(--nav-letter-spacing);
    text-transform: uppercase;
    text-decoration: none;
    color: var(--nav-link);
    border-radius: 4px;
    position: relative;
    transition: color var(--nav-transition);
}

/* Soulignement animé */
.navbar__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    right: 50%;
    height: 2px;
    background: var(--nav-link-hover);
    border-radius: 2px;
    transition: left var(--nav-transition), right var(--nav-transition);
}

.navbar__link:hover,
.navbar__link:focus-visible {
    color: var(--nav-link-hover);
    outline: none;
}

.navbar__link:hover::after,
.navbar__link:focus-visible::after,
.navbar__link--active::after {
    left: 1rem;
    right: 1rem;
}

.navbar__link--active {
    color: var(--nav-link-active);
}

/* ---- CTA "Contact" (bordure) ---- */
.navbar__link--cta {
    border: 1.5px solid var(--nav-cta-border);
    border-radius: 6px;
    margin-left: 0.25rem;
    padding: 0.5rem 1.2rem;
    transition: color var(--nav-transition), border-color var(--nav-transition), background var(--nav-transition);
}

.navbar__link--cta::after {
    display: none; /* pas de soulignement sur le CTA */
}

.navbar__link--cta:hover,
.navbar__link--cta:focus-visible {
    color: var(--nav-link-hover);
    border-color: var(--nav-cta-border-hover);
    background: rgba(78, 205, 196, 0.10);
}

/* ---- Burger (mobile) ---- */
.navbar__burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.navbar__burger-bar {
    display: block;
    width: 100%;
    height: 2.5px;
    background: var(--nav-link);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Animation burger → croix */
.navbar__burger[aria-expanded="true"] .navbar__burger-bar:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}
.navbar__burger[aria-expanded="true"] .navbar__burger-bar:nth-child(2) {
    opacity: 0;
}
.navbar__burger[aria-expanded="true"] .navbar__burger-bar:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* ============================================================
   RESPONSIVE – Mobile
   ============================================================ */
@media (max-width: 768px) {
    :root {
        --nav-height: 88px;
    }

    .navbar__burger {
        display: flex;
    }

    .navbar__menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 1.25rem 2rem 2rem;
        background: rgba(15, 22, 30, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: 1px solid rgba(255, 255, 255, 0.06);

        /* Caché par défaut */
        transform: translateY(-8px);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .navbar__menu.is-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .navbar__item {
        width: 100%;
    }

    .navbar__link {
        display: block;
        padding: 0.9rem 0;
        font-size: 1.05rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    }

    .navbar__link::after {
        display: none;
    }

    .navbar__link--cta {
        margin-left: 0;
        margin-top: 1rem;
        border: 1.5px solid var(--nav-cta-border);
        text-align: center;
        border-radius: 6px;
        padding: 0.75rem 1rem;
    }
}

/* ---- Préférence no-motion ---- */
@media (prefers-reduced-motion: reduce) {
    .navbar,
    .navbar__link,
    .navbar__link::after,
    .navbar__logo-img,
    .navbar__burger-bar,
    .navbar__menu {
        transition: none;
    }
}

/* ============================================================
   NAVBAR sur fond clair (pages services, a-propos, contact)
   ============================================================ */
body.page-light .navbar {
    background: rgba(240, 246, 248, 0.90);
    border-bottom: 1px solid rgba(26, 46, 74, 0.10);
}

body.page-light .navbar.is-scrolled {
    background: rgba(240, 246, 248, 0.97);
    box-shadow: 0 4px 24px rgba(26, 46, 74, 0.10);
}

body.page-light .navbar__link {
    color: #1a2e4a;
}

body.page-light .navbar__link:hover,
body.page-light .navbar__link:focus-visible {
    color: #4ecdc4;
}

body.page-light .navbar__link--active {
    color: #4ecdc4;
}

body.page-light .navbar__link--cta {
    border-color: rgba(26, 46, 74, 0.30);
}

body.page-light .navbar__burger-bar {
    background: #1a2e4a;
}

@media (max-width: 768px) {
    body.page-light .navbar__menu {
        background: rgba(240, 246, 248, 0.98);
    }
    body.page-light .navbar__link {
        border-bottom-color: rgba(26, 46, 74, 0.08);
    }
}