/* ==========================================================================
   PROJET.CSS — Pages études de cas (scroll horizontal GSAP) + page contact
   (ancien styles.css, sans les règles de l'accueil devenues inutiles)
   ========================================================================== */

/* 1. BASE ---------------------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
}

html, body {
    background-color: #0d0d0d;
    color: #ffffff;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Les champs de formulaire doivent rester sélectionnables (sinon bloqués sur iOS) */
input, textarea, select {
    -webkit-user-select: text;
    user-select: text;
}

img, video {
    -webkit-user-drag: none;
    user-drag: none;
    pointer-events: none;
}

body {
    min-height: 100vh;
    width: 100%;
}

/* 2. NAVIGATION --------------------------------------------------------- */
.main-navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background-color: rgba(13, 13, 13, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 999;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: 1400px;
    height: 100%;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    color: #ffffff;
    font-weight: 900;
    font-size: 1.3rem;
    text-transform: uppercase;
    letter-spacing: 5px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    height: 100%;
}

.nav-logo img {
    max-height: 40px;
    height: 100%;
    width: auto;
    object-fit: contain;
    display: block;
}

.nav-links { display: flex; gap: 30px; }

.nav-links a {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.5;
    transition: opacity 0.3s ease;
    padding: 5px 0;
    position: relative;
}
.nav-links a:hover,
.nav-links a.active { opacity: 1; }

/* Burger (masqué sur desktop) */
.nav-toggle { display: none; }

.nav-toggle-label {
    display: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
    display: block;
    background: #ffffff;
    height: 2px;
    width: 25px;
    border-radius: 2px;
    position: relative;
    transition: all 0.3s ease-in-out;
}

.nav-toggle-label span::before,
.nav-toggle-label span::after {
    content: '';
    position: absolute;
    left: 0;
}
.nav-toggle-label span::before { top: -7px; }
.nav-toggle-label span::after  { top: 7px; }

/* 3. ÉTUDE DE CAS — SCROLL HORIZONTAL (DESKTOP) ------------------------ */
.scroll-wrapper {
    overflow: hidden;
    width: 100%;
    height: 100vh;
}

.horizontal-scroll-container {
    display: flex;
    align-items: center;
    height: 100vh;
    padding-top: 80px;
    width: max-content;
    will-change: transform;
}

.project-intro-section {
    flex: 0 0 auto;
    width: clamp(300px, 25vw, 450px);
    margin: 0 5vw 0 6vw;
    white-space: normal;
}

.project-client-tag {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 4px;
    opacity: 0.5;
    display: block;
    margin-bottom: 20px;
}

.project-intro-section h1 {
    font-size: clamp(1.8rem, 2.5vw, 2.8rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -1px;
    margin-bottom: 25px;
    line-height: 1.1;
}

.project-large-text {
    font-size: clamp(0.9rem, 1vw, 1.1rem);
    line-height: 1.8;
    font-weight: 300;
    opacity: 0.75;
}

.portfolio-item {
    flex: 0 0 auto;
    height: 55vh;
    margin-right: 3vw;
    display: flex;
    align-items: center;
}
.portfolio-item:last-child { margin-right: 8vw; }

.media-wrapper {
    height: 100%;
    width: auto;
    overflow: hidden;
    background-color: #121212;
    border-radius: 4px;
    position: relative;
    transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.media-wrapper img,
.media-wrapper video {
    height: 100%;
    width: auto;
    display: block;
    object-fit: contain;
    transition: transform 0.6s ease;
}

.portfolio-item:hover .media-wrapper {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}
.portfolio-item:hover img,
.portfolio-item:hover video { transform: scale(1.03); }

.item-text-card {
    flex: 0 0 auto;
    width: clamp(250px, 20vw, 320px);
    margin-right: 3vw;
    white-space: normal;
    padding: 20px;
}

.item-text-card h3 {
    font-size: 1.2rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
    line-height: 1.2;
}

.item-text-card p {
    font-size: 0.88rem;
    line-height: 1.7;
    opacity: 0.6;
    font-weight: 300;
}

/* Indication de scroll : à gauche, pour ne plus passer sous le bouton Retour */
.scroll-hint {
    position: fixed;
    bottom: 30px;
    left: 40px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    opacity: 0.4;
    pointer-events: none;
    z-index: 10;
}

/* Bouton Retour */
.back-button {
    position: fixed;
    bottom: 30px;
    right: 40px;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #ffffff;
    padding: 10px 18px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
    cursor: pointer;
}
.back-button:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}
.back-button svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    transition: transform 0.3s ease;
}
.back-button:hover svg { transform: translateX(-4px); }

/* 4. PAGE CONTACT (même charte) ---------------------------------------- */
.form-container {
    max-width: 640px;
    margin: 0 auto;
    padding: 140px 20px 80px;
}

.form-container h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -1px;
    line-height: 1.1;
    margin-bottom: 40px;
}

.form-group { margin-bottom: 28px; }

.form-group label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    opacity: 0.5;
    margin-bottom: 10px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    background: transparent;
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-size: 1rem;
    font-weight: 300;
    padding: 10px 0;
    border-radius: 0;
    transition: border-color 0.3s ease;
}
.form-group textarea { resize: vertical; line-height: 1.6; }
.form-group select { cursor: pointer; }
.form-group select option { background: #0d0d0d; color: #ffffff; }

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover { border-bottom-color: rgba(255, 255, 255, 0.5); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-bottom-color: #ffffff;
}

.submit-btn {
    display: inline-block;
    margin-top: 10px;
    padding: 15px 35px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    border: 1px solid #ffffff;
    background: transparent;
    color: #ffffff;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease;
}
.submit-btn:hover,
.submit-btn:focus-visible {
    background-color: #ffffff;
    color: #0d0d0d;
}

.notification {
    display: none;
    padding: 15px 20px;
    margin-bottom: 30px;
    font-size: 0.85rem;
    font-weight: 300;
    border-left: 2px solid #ffffff;
    background: rgba(255, 255, 255, 0.05);
}
.notification.success { border-left-color: #ffffff; }
.notification.error   { border-left-color: rgba(255, 255, 255, 0.4); opacity: 0.85; }

/* 5. RESPONSIVE MOBILE & TABLETTE (≤ 820px) ---------------------------- */
@media (max-width: 820px) {
    .main-navbar { height: 70px; }
    .nav-container { padding: 0 20px; }

    .nav-toggle-label { display: block; }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100vw;
        height: calc(100vh - 70px);
        background-color: rgba(13, 13, 13, 0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.4s ease-in-out, opacity 0.4s ease-in-out, visibility 0.4s;
    }

    .nav-links a { font-size: 1.1rem; letter-spacing: 3px; opacity: 0.7; }
    .nav-links a:hover,
    .nav-links a.active { opacity: 1; }

    .nav-toggle:checked ~ .nav-links {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    .nav-toggle:checked ~ .nav-toggle-label span { background: transparent; }
    .nav-toggle:checked ~ .nav-toggle-label span::before { transform: rotate(45deg);  top: 0; }
    .nav-toggle:checked ~ .nav-toggle-label span::after  { transform: rotate(-45deg); top: 0; }

    /* Le scroll horizontal devient vertical */
    .scroll-wrapper { height: auto; overflow: visible; }

    .horizontal-scroll-container {
        flex-direction: column;
        width: 100%;
        height: auto;
        padding: 100px 20px 60px 20px;
        transform: none !important;   /* neutralise un éventuel transform GSAP */
    }

    .project-intro-section,
    .item-text-card {
        width: 100%;
        margin: 30px 0;
        padding: 0 10px;
    }

    .portfolio-item,
    .portfolio-item:last-child {
        width: 100%;
        height: auto;
        margin: 30px 0;
        justify-content: center;
    }

    .media-wrapper {
        width: 100%;
        height: auto;
        max-height: 70vh;
    }

    .media-wrapper img,
    .media-wrapper video {
        width: 100%;
        height: auto;
        max-height: 70vh;
        object-fit: contain;
    }

    .scroll-hint { display: none; }

    .form-container { padding-top: 110px; }
}

@media (prefers-reduced-motion: reduce) {
    .media-wrapper,
    .media-wrapper img,
    .media-wrapper video { transition: none; }
}