/* header */
#header-container {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: var(--z-header);
    background-color: transparent;
}

#header-container header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

#header-container .logo {
    position: static; /* NE PAS positionner absolument ici */
    transform: none;
}
@media (min-width: 768px) {
    #header-container .logo {
        width: 100px;
    }
}

/* Ne pas forcer display: flex sur TOUS les navs */
#header-container nav {
    margin: 16px;
}

/* Appliquer display:flex SEULEMENT sur la navbar desktop */
@media (min-width: 768px) {
    #main-nav {
        display: flex;
    }
}

#header-container nav a {
    text-decoration: none;
    color: white;
    font-family: "cousine";
    padding: 1rem;
}

/* ===== barre animée ===== */
.trait {
    padding-top: 120px;
    width: 100%;
    display: flex;
}

.growing-bar {
    margin: 0 0 32px 0;
    height: 1px;
    border: none;
    background: #ffffff91;
    width: 0; /* état de départ */
    animation: growBar 2s ease-out forwards;
    z-index: var(--z-content);
}

@keyframes growBar {
    from {
        width: 0;
    }
    to {
        width: 26%;
    } /* 24 % de .trait  */
}

.slogan {
    margin: 16px;
    padding: 16px;
    animation: slowFlicker 4s infinite ease-in-out;
    color: white;
    z-index: var(--z-content);
}

.social {
    display: flex;
    gap: 16px;
}

@keyframes slowFlicker {
    0%,
    100% {
        opacity: 0.2;
    }
    50% {
        opacity: 1;
    }
}

#footer-container {
    background-color: black;
    z-index: var(--z-content);
    footer {
        display: flex;
        padding: 0 2.5%;
        justify-content: space-between;
        align-items: center;
        color: rgb(255, 255, 255);
        background-color: black;
    }
}
@media (max-width: 768px) {
    footer p {
        font-size: 8px;
    }
}
/* nav container */
#main-nav {
    position: relative; /* référentiel pour #marker */
    gap: 1.5rem;
}

/* liens */
#main-nav a {
    position: relative;
    padding: 1rem;
    text-decoration: none;
    color: #fff;
    font-family: "cousine";
    z-index: var(--z-header);
}
/* ===== burger : icone qui se transforme en croix ===== */
.burger-btn {
    position: relative;
    width: 26px;
    height: 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    z-index: calc(var(--z-mobile-nav) + 1);
}

.burger-line {
    display: block;
    width: 100%;
    height: 2px;
    background: white;
    transform-origin: center;
    transition:
        transform 0.35s ease,
        opacity 0.25s ease,
        background-color 0.35s ease;
}

.burger-btn.open .burger-line {
    background: var(--color-nova-red);
}
.burger-btn.open .burger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.burger-btn.open .burger-line:nth-child(2) {
    opacity: 0;
}
.burger-btn.open .burger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ===== menu mobile plein ecran ===== */
.mobile-nav {
    position: fixed;
    inset: 0;
    z-index: var(--z-mobile-nav);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.25rem;
    background-color: rgba(0, 0, 0, 0.97);
    background-image: repeating-linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.035) 0px,
        rgba(255, 255, 255, 0.035) 1px,
        transparent 1px,
        transparent 46px
    );
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
        opacity 0.35s ease,
        visibility 0.35s ease;
}

.mobile-nav.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.mobile-nav .mobile-link {
    position: relative;
    font-family: "cousine", monospace;
    text-decoration: none;
    color: white;
    font-size: 1.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(14px);
    transition: color 0.25s ease;
}

.mobile-nav.open .mobile-link {
    animation: mobileLinkIn 0.45s ease forwards;
    animation-delay: calc(var(--i) * 0.06s + 0.1s);
}

@keyframes mobileLinkIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-nav .mobile-link::before {
    content: "";
    position: absolute;
    left: -1.4rem;
    top: 50%;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--color-nova-red), var(--color-nova-red-dark));
    box-shadow: 0 0 10px var(--color-nova-red);
    transform: translateY(-50%) scale(0);
    transition: transform 0.25s ease;
}

.mobile-nav .mobile-link:hover,
.mobile-nav .mobile-link:focus-visible {
    color: var(--color-nova-red-light);
}
.mobile-nav .mobile-link:hover::before,
.mobile-nav .mobile-link:focus-visible::before {
    transform: translateY(-50%) scale(1);
}

body.no-scroll {
    overflow: hidden;
}

/* marqueur */
#marker {
    position: absolute;
    bottom: 0; /* collé au bas du lien */
    left: 0;
    transition: 0.4s;
    pointer-events: none;
    z-index: 0;
}

/* style planete */
#marker::before {
    content: "";
    position: absolute;
    top: -52px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--color-nova-red), var(--color-nova-red-dark));
    box-shadow:
        0 0 10px var(--color-nova-red),
        0 0 20px var(--color-nova-red),
        0 0 40px var(--color-nova-red),
        inset 0 0 8px var(--color-nova-red-light);
    animation: rotatePlanet 6s linear infinite;
}

@keyframes rotatePlanet {
    from {
        transform: translateX(-50%) rotate(0deg);
    }
    to {
        transform: translateX(-50%) rotate(360deg);
    }
}