/* ========================================
   RESET & VARIABLES
   ======================================== */
html {
    scroll-behavior: auto !important;
}

* {
    box-sizing: border-box;
}

::-webkit-scrollbar {
    width: 0;
}

:root {
    --color-1: #ffffff;
    --color-2: #282828;
    --header-height: 45px;
    --transition-smooth: 0.2s ease-out;
    --transition-menu: 0.5s cubic-bezier(0.4, 0, 0.05, 0.94);
    --shadow-header: 0 0 80px -15px rgba(0, 0, 0, 0.34);
}

/* ========================================
   TYPOGRAPHIE
   ======================================== */
h1 {
    font-size: 36.65px;
    font-weight: 900;
    margin: 0;
}

h2 {
    font-size: 22.65px;
    font-weight: 900;
    margin: 0;
}

p,
h3 {
    font-size: 14px;
    font-weight: 400;
    margin: 0;
    opacity: 0.85;
}

a,
button,
b {
    font-size: 14px;
    font-weight: 700;
    margin: 0;
    text-decoration: none;
}

/* ========================================
   HEADER UNIFIÉ
   ======================================== */
#header-main {
    position: fixed;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
    background-color: var(--color-1);
    box-shadow: var(--shadow-header);
    z-index: 300;
    left: 0;
    right: 0;
    top: 0;
}

#header-main a {
    color: var(--color-2);
    transition: var(--transition-smooth);
    padding: 15px;
    font-weight: 400;
}

#header-main a:hover {
    cursor: pointer;
    padding-bottom: 20px;
}

#header-main .btn-icon {
    display: flex;
    height: 100%;
    align-items: center;
}

#header-main img {
    height: 20px;
    min-height: 20px;
}

#header-main .active {
    font-weight: 800;
}

/* Navigation desktop */
#nav-main {
    display: flex;
    height: 100%;
    align-items: center;
}

.nav-links {
    display: flex;
    align-items: center;
    height: 100%;
}

/* Éléments cachés sur desktop */
.menu-toggle,
.nav-logo,
.nav-contact {
    display: none;
}

#nav-backdrop {
    display: none;
}

/* ========================================
   PAGE CONTACT
   ======================================== */
#contact-page {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    overflow-y: auto;
    transform: translateY(120%);
    transition: transform 1s cubic-bezier(0.4, 0, 0.05, 0.94);
}

#contact-page.active {
    transform: translateY(0%);
}

#bg-contact {
    position: absolute;
    height: auto;
    width: 70%;
    opacity: 7%;
    z-index: 1;
    left: 0;
    bottom: 0;
    pointer-events: none;
}

/* ========================================
   COLONNE GAUCHE - INFOS
   ======================================== */
.content-contact {
    flex: 1;
    min-width: 0;
    padding: 15vmin;
    padding-top: calc(var(--header-height) + 15vmin);
    background-color: var(--color-1);
    color: var(--color-2);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.content-contact p {
    max-width: 350px;
}

.content-contact .info-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.content-contact a {
    color: var(--color-2) !important;
    width: fit-content;
    display: flex;
    align-items: baseline;
    gap: 10px;
    transition: opacity var(--transition-smooth);
}

.content-contact a:hover {
    opacity: 0.8;
    transition: opacity var(--transition-smooth);
}


.content-contact img {
    height: 15px;
}

/* ========================================
   COLONNE DROITE - FORMULAIRE
   ======================================== */
.expert-form {
    flex: 1;
    min-width: 0;
    padding: 15vmin;
    padding-top: calc(var(--header-height) + 15vmin);
    background-color: var(--color-2);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: end;
    position: relative;
    z-index: 2;
}

/* ========================================
   CHAMPS DU FORMULAIRE
   ======================================== */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2.5rem;
    width: 100%;
}

.input-group {
    width: 100%;
}

.input-group label {
    display: block;
    font-size: 14px;
    font-weight: 400;
    margin: 0;
    margin-bottom: 10px;
    opacity: 0.5;
    font-weight: 500;
    color: var(--color-1);
}

input,
select,
textarea {
    width: 100%;
    background-color: transparent;
    border: none;
    border-bottom: 1px solid var(--color-1);
    color: var(--color-1);
    font-family: 'Red Hat Display', sans-serif;
    font-size: 14px;
    font-weight: 400;
    margin: 0;
    outline: none;
    transition: all 0.3s ease;
}

input:focus,
select:focus,
textarea:focus {
    border-bottom-color: #ffb700;
    padding-left: 10px;
}

select {
    cursor: pointer;
}

textarea {
    resize: vertical;
    min-height: 100px;
    max-height: 30vmin;
}

.full-width {
    grid-column: 1 / -1;
    margin-bottom: 2rem;
}

/* ========================================
   BOUTON SUBMIT
   ======================================== */
.btn-form {
    color: var(--color-1) !important;
    background-color: transparent !important;
    border: 1px solid var(--color-1);
    padding: 1rem 2rem;
    font-family: 'Red Hat Display', sans-serif;
    font-size: 14px;
    font-weight: 400;
    margin: 0;
    cursor: pointer;
    transition: all 0.3s ease;
    width: fit-content;
}

.btn-form:hover {
    opacity: 0.8;
    transition: all 0.3s ease;
}

/* ========================================
   VALIDATION
   ======================================== */
.expert-form.submitted input:invalid,
.expert-form.submitted textarea:invalid,
.expert-form.submitted select:invalid {
    border-bottom-color: #ff0000;
}

/* ========================================
   RESPONSIVE CONTACT
   ======================================== */
@media (max-width: 1000px) {
    #contact-page {
        display: unset;
        height: 100%;
        padding-top: 45px;
    }

    .content-contact {
        padding-top: var(--header-height);
        background-color: var(--color-1);
        color: var(--color-2);
        display: flex;
        flex-direction: column;
        align-items: baseline;
        justify-content: space-between;
        width: 100%;
        min-height: 70%;
        padding: 15vh 15vmin;
    }

    .expert-form {
        width: 100%;
        height: fit-content;
        /* max-width: 900px; */
        margin: 0;
        padding: 15vmin;
        background-color: var(--color-2);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: baseline;
    }

    .form-row {
        display: grid;
        grid-template-columns: 1fr;
        width: 100%;
    }


    #bg-contact {
        position: absolute;
        height: auto;
        width: 30vmax;
        opacity: 7%;
        z-index: 1;
        left: unset;
        right: 0;
        bottom: 0;
        pointer-events: none;
    }

}

/* ========================================
   FIX AUTOFILL (Enlever le fond bleu Chrome)
   ======================================== */

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
    /* 1. On masque le fond bleu par une ombre intérieure de la couleur de ton fond */
    -webkit-box-shadow: 0 0 0 30px var(--color-2) inset !important;

    /* 2. On force la couleur du texte (sinon il devient noir par défaut) */
    -webkit-text-fill-color: var(--color-1) !important;

    /* 3. Astuce supplémentaire : on repousse le changement de couleur à l'infini */
    transition: background-color 5000s ease-in-out 0s;
}

/* ========================================
   RESPONSIVE MOBILE
   ======================================== */
@media (max-width: 570px) {
    .menu-toggle {
        display: flex;
        align-items: center;
        background: none;
        border: none;
        padding: 15px;
        cursor: pointer;
    }

    .menu-toggle img {
        height: 20px;
    }

    /* Cacher le contact du header */
    #header-main>.res {
        display: none;
    }

    /* Nav devient panneau latéral */
    #nav-main {
        position: fixed;
        flex-direction: column;
        align-items: flex-start;
        justify-content: space-between;
        height: 100vh;
        width: 60vw;
        top: 0;
        left: 0;
        padding: 5vmin;
        background-color: var(--color-1);
        transform: translateX(-100%);
        transition: var(--transition-menu);
        z-index: 300;
    }

    #nav-main.open {
        transform: translateX(0);
    }

    /* Afficher logo en haut */
    .nav-logo {
        display: block;
    }

    /* Liens en colonne */
    .nav-links {
        flex-direction: column;
        align-items: flex-start;
        height: auto;
    }

    /* Afficher contact en bas */
    .nav-contact {
        display: block;
    }

    #nav-backdrop.open {
        display: block;
        position: fixed;
        inset: 0;
        background-color: rgba(0, 0, 0, 0.7);
        z-index: 200;
        cursor: pointer;
    }
}

/* ========================================
   BOUTONS
   ======================================== */
#btn-light,
#btn-actu {
    text-decoration: none;
    color: var(--color-1);
    border: solid 2px var(--color-1);
    /* background-color: var(--color-1); */
    padding: 8px 15px;
    border-radius: 50px;
    transition: var(--transition-smooth);
    display: inline-block;
}

#btn-light:hover {
    cursor: pointer;
    opacity: 0.8;
}

#btn-actu:hover {
    cursor: pointer;
    opacity: 0.8;
}

#btn-dark {
    text-decoration: none;
    color: var(--color-1);
    background-color: var(--color-2);
    padding: 8px 15px;
    border-radius: 50px;
    transition: var(--transition-smooth);
    display: inline-block;
}

#btn-dark:hover {
    opacity: 0.8;
    cursor: pointer;
}

#btn-ghost,
.demande {
    text-decoration: none;
    color: var(--color-2);
    border: solid 2px var(--color-2);
    padding: 8px 15px;
    border-radius: 50px;
    transition: var(--transition-smooth);
    display: inline-block;
    opacity: 1;
}

#btn-ghost:hover {
    opacity: 0.6;
    cursor: pointer;
}

.demande:hover {
    opacity: 0.6;
    cursor: pointer;
}

/* Bouton retour */
.back-btn-contact {
    position: absolute;
    background-color: rgba(134, 134, 134, 0.77);
    color: var(--color-1);
    padding: 11px 15px;
    top: 55px;
    left: 10px;
    border: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    z-index: 50;
    align-self: flex-start;
    margin: 10px;
    transition: opacity var(--transition-smooth);
}

.back-btn-contact:hover {
    opacity: 0.8;
    transition: opacity var(--transition-smooth);
}