/* ==========================================================================
   ELENA: Luxe Radical & Old Money CSS
   ========================================================================== */

/* --- Variables (Deep Luxury Palette) --- */
:root {
    /* Colors */
    --color-bg: #030305;
    /* Noir abyssal */
    --color-bg-alt: #0a0a0d;
    /* Noir un peu moins profond */
    --color-text: #F3F3F1;
    /* Blanc cassé "papier" */
    --color-text-muted: #8E8D8A;
    /* Gris pour la lecture */
    --color-accent: #C7B58B;
    /* Or mat / Champagne vieilli */
    --color-border: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing & Transitions */
    --transition-slow: 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-fast: 0.3s ease;
}

/* --- Reset & Base --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    overflow-x: hidden;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none;
    /* Custom cursor */
}

/* --- Lenis Smooth Scroll --- */
html.lenis,
html.lenis body {
    height: auto;
}

.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}

/* --- Film Grain Noise --- */
.noise {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background-image: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
    opacity: 0.04;
    pointer-events: none;
    z-index: 9998;
    animation: grain 8s steps(10) infinite;
}

@keyframes grain {

    0%,
    100% {
        transform: translate(0, 0);
    }

    10% {
        transform: translate(-5%, -10%);
    }

    20% {
        transform: translate(-15%, 5%);
    }

    30% {
        transform: translate(7%, -25%);
    }

    40% {
        transform: translate(-5%, 25%);
    }

    50% {
        transform: translate(-15%, 10%);
    }

    60% {
        transform: translate(15%, 0%);
    }

    70% {
        transform: translate(0%, 15%);
    }

    80% {
        transform: translate(3%, 35%);
    }

    90% {
        transform: translate(-10%, 10%);
    }
}

/* Accessibility & Performance: Disable Grain on slow/old devices */
@media (prefers-reduced-motion: reduce) {
    .noise {
        animation: none;
        display: none;
    }
}

/* Custom Cursor */
.cursor-dot,
.cursor-outline {
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    z-index: 9999;
    pointer-events: none;
    mix-blend-mode: difference;
    will-change: transform;
    /* Pour l'effet inversé */
}

.cursor-dot {
    width: 5px;
    height: 5px;
    background-color: #fff;
}

.cursor-outline {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    transition: width 0.3s cubic-bezier(0.25, 0.1, 0.25, 1),
        height 0.3s cubic-bezier(0.25, 0.1, 0.25, 1),
        background-color 0.3s;
}

.cursor-outline.inverse {
    width: 80px;
    height: 80px;
    background-color: #fff;
    border-color: transparent;
    mix-blend-mode: exclusion;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--color-bg);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: opacity var(--transition-slow);
}

.preloader-text-wrapper {
    display: flex;
    justify-content: space-between;
    width: 300px;
    margin-bottom: 2rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.preloader-progress {
    width: 300px;
    height: 1px;
    background-color: var(--color-border);
    position: relative;
    overflow: hidden;
}

.preloader-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background-color: var(--color-text);
}

/* Typography Classes */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.1;
}

.text-center {
    text-align: center;
}

/* Utilities */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 1rem 2.5rem;
    text-transform: uppercase;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-decoration: none;
    border: 1px solid var(--color-accent);
    transition: var(--transition-fast);
    cursor: none;
    /* Pour le custom cursor */
}

.btn-primary {
    background-color: transparent;
    color: var(--color-accent);
    margin-top: 3rem;
}

.btn-primary:hover {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

.btn-secondary {
    background-color: var(--color-text);
    color: var(--color-bg);
    border-color: var(--color-text);
}

.btn-secondary:hover {
    background-color: transparent;
    color: var(--color-text);
}


/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    mix-blend-mode: difference;
    color: #fff;
    /* For difference blending */
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.3em;
}

.main-nav {
    display: flex;
    gap: 3rem;
}

.nav-link {
    color: inherit;
    text-decoration: none;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    position: relative;
    cursor: none;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0%;
    height: 1px;
    background-color: currentColor;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.lang-switch {
    font-size: 0.85rem;
    letter-spacing: 0.1em;
}

/* --- Hero Section & Fluid Background --- */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding: 0 5%;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
}

#hero-vid {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

/* True Surgical Slice Glitch (Hero) */
.cyber-glitch {
    position: relative;
    display: inline-block;
    /* Color is overridden by .hero-title span:nth-child(2) for stroke effect */
    font-size: 1.15em;
    /* Slightly larger as requested */
}

/* Pseudo element 1: A thick middle slice */
.cyber-glitch::before {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.5);
    pointer-events: none;
    clip-path: polygon(0 40%, 100% 40%, 100% 55%, 0 55%);
    animation: true-slice-middle 2.5s infinite;
}

/* Pseudo element 2: A thin bottom slice */
.cyber-glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.5);
    pointer-events: none;
    clip-path: polygon(0 75%, 100% 75%, 100% 82%, 0 82%);
    animation: true-slice-bottom 2.5s infinite;
}

@keyframes true-slice-middle {

    0%,
    46%,
    52%,
    100% {
        transform: translateX(0);
        opacity: 1;
        filter: none;
    }

    47% {
        transform: translateX(-15px) skewX(20deg);
        filter: drop-shadow(2px 0 cyan);
    }

    49% {
        transform: translateX(12px) skewX(-15deg);
        filter: drop-shadow(-2px 0 red);
    }

    51% {
        transform: translateX(-5px);
    }
}

@keyframes true-slice-bottom {

    0%,
    46%,
    52%,
    100% {
        transform: translateX(0);
        opacity: 1;
    }

    47% {
        transform: translateX(20px);
    }

    49% {
        transform: translateX(-15px);
    }

    51% {
        transform: translateX(6px);
    }
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg);
    z-index: -2;
    overflow: hidden;
}

#hero-vid {
    width: 100vw;
    height: 56.25vw;
    /* 16:9 Aspect Ratio */
    min-height: 100vh;
    min-width: 177.77vh;
    /* 16:9 Aspect Ratio */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.6;
    pointer-events: none;
    /* Empêche de cliquer sur la vidéo YouTube */
    filter: brightness(0.6) contrast(1.3) grayscale(100%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(3, 3, 5, 0.4);
    z-index: -1;
}

.hero-content {
    max-width: 1200px;
    z-index: 1;
}

.hero-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.hero-title {
    font-size: clamp(4rem, 10vw, 9rem);
    letter-spacing: -0.04em;
    margin-bottom: 2rem;
    line-height: 0.95;
}

.hero-title span {
    display: block;
}

.hero-title span:nth-child(2) {
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.5);
    font-style: italic;
    transform: translateX(5%);
}

.hero-description {
    font-size: 1.25rem;
    max-width: 600px;
    color: var(--color-text-muted);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 5%;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
}

.scroll-indicator .line {
    width: 50px;
    height: 1px;
    background-color: currentColor;
    transform-origin: left;
    animation: stretch 2s infinite;
}

@keyframes stretch {
    0% {
        transform: scaleX(0);
    }

    50% {
        transform: scaleX(1);
    }

    100% {
        transform: scaleX(0);
        transform-origin: right;
    }
}

/* --- Huge Marquee Section --- */
.marquee-section {
    padding: 3rem 0;
    /* Further reduced padding */
    overflow: hidden;
    position: relative;
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.marquee-inner {
    display: flex;
    white-space: nowrap;
    will-change: transform;
    animation: marquee 20s linear infinite;
}

.marquee-text {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 5vw, 3rem);
    /* Further reduced size for readability */
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.4);
    /* Slightly thicker stroke for smaller text */
    text-transform: uppercase;
    padding-right: 3vw;
    line-height: 1;
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

.marquee-section:hover .marquee-text {
    color: var(--color-text);
    -webkit-text-stroke: 0px;
    transition: color 0.5s ease;
}

/* --- Avant-Garde Editorial ADN Concept --- */
.section-editorial {
    padding: 10rem 0;
    position: relative;
    background-color: var(--color-bg);
    overflow: hidden;
}

.editorial-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5vw;
    position: relative;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    min-height: 80vh;
}

/* Image acts as the right-side visual anchor */
.editorial-image-container {
    width: 45%;
    max-width: 600px;
    height: 70vh;
    min-height: 500px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.editorial-image {
    width: 100%;
    height: 100%;
    background-image: url('../assets/adn-avant-garde.png');
    background-size: cover;
    background-position: center;
    transition: transform 0.1s ease-out;
    will-change: transform;
    /* Parallax if mouse linked later */
}

/* Typography completely breaks grid and overlays */
.editorial-typography {
    position: absolute;
    top: 15%;
    left: 5vw;
    z-index: 2;
    pointer-events: none;
}

.editorial-title {
    font-family: var(--font-heading);
    font-size: clamp(4rem, 11vw, 15rem);
    line-height: 0.8;
    color: var(--color-text);
    margin: 0;
    text-transform: uppercase;
}

.editorial-indent {
    display: block;
    margin-left: 15vw;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.7);
    filter: drop-shadow(0px 10px 30px rgba(0, 0, 0, 0.9));
    /* Enhanced transparent stroke effect for visibility */
}

.editorial-data {
    font-family: var(--font-body);
    font-size: 0.85rem;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    margin-top: 2rem;
    margin-left: 5vw;
}

/* Frosted glass overlay box for text */
.editorial-body {
    position: absolute;
    bottom: -5%;
    left: 8vw;
    max-width: 450px;
    z-index: 3;
    background: rgba(10, 10, 12, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.editorial-body p {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.editorial-body p:first-of-type {
    font-size: 1.25rem;
    color: var(--color-text);
}

/* Mobile Adjustments */
@media (max-width: 1024px) {
    .editorial-container {
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 10rem;
    }

    .editorial-image-container {
        width: 100%;
        height: 50vh;
        margin-top: 5rem;
    }

    .editorial-typography {
        position: relative;
        top: auto;
        left: auto;
    }

    .editorial-title {
        font-size: clamp(4rem, 15vw, 8rem);
    }

    .editorial-indent {
        margin-left: auto;
        text-align: right;
    }

    .editorial-body {
        position: relative;
        bottom: auto;
        left: auto;
        margin-top: -3rem;
        width: 100%;
        max-width: none;
    }
}

/* --- Pillars --- */
.section-expertises {
    padding: 15rem 0;
    position: relative;
    overflow: hidden;
}

.expertises-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../assets/bg-brutalist.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    opacity: 0;
    z-index: 0;
    transition: opacity 1.2s cubic-bezier(0.25, 0.1, 0.25, 1), transform 1.2s cubic-bezier(0.25, 0.1, 0.25, 1);
    transform: scale(1.05);
    /* Slight scale down on reveal */
    filter: brightness(0.8) contrast(1.1);
    /* Keep reading legibility but show texture */
    will-change: opacity, transform;
}

.section-expertises.bg-active .expertises-bg {
    opacity: 1;
    transform: scale(1);
}

.section-expertises .container {
    position: relative;
    z-index: 1;
    /* Keep content above bg */
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 8rem;
}

.pillar-card {
    padding: 3rem;
    border-top: 1px solid var(--color-border);
    position: relative;
    transition: var(--transition-slow);
}

.pillar-number {
    font-family: var(--font-body);
    font-size: 0.8rem;
    color: var(--color-accent);
    margin-bottom: 4rem;
    transition: color 0.5s ease;
}

.pillar-title {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    transition: transform 0.5s ease;
}

.pillar-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    transition: color 0.5s ease;
}

.hover-line {
    position: absolute;
    top: -1px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text);
    /* White on hover looks more premium against dark bg */
    transition: var(--transition-slow);
}

.section-expertises:hover .pillar-card {
    opacity: 0.3;
    /* Fade all cards */
}

.section-expertises .pillar-card:hover {
    opacity: 1;
    /* Focus current card */
    background-color: transparent;
    transform: translateY(-10px);
}

.pillar-card:hover .hover-line {
    width: 100%;
}

.pillar-card:hover .pillar-title {
    transform: translateX(10px);
}

.pillar-card:hover .pillar-desc {
    color: var(--color-text);
}


/* --- Vision / Promise Spotlight --- */
.section-vision {
    padding: 15rem 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: #000;
    position: relative;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
    cursor: none;
}

.spotlight {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: rgba(0, 0, 0, 1);
    z-index: 2;
    opacity: 1;
    /* Always opaque to hide text by default */
    will-change: background;
}

.vision-content {
    position: relative;
    z-index: 1;
}

.vision-quote {
    font-size: clamp(3rem, 6vw, 5rem);
    color: var(--color-text);
    /* Reveal text clearly */
    margin-bottom: 3rem;
}

.vision-text {
    font-size: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
    color: var(--color-text-muted);
}

/* --- Footer --- */
.site-footer {
    padding: 8rem 0 4rem;
}

.footer-cta {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 8rem;
}

.footer-cta h2 {
    font-size: clamp(3rem, 6vw, 5rem);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--color-border);
    padding-top: 3rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}

.footer-links a {
    color: inherit;
    text-decoration: none;
    margin-left: 2rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-accent);
}

/* --- Animations (Intersection Observer Targets) --- */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in {
    opacity: 0;
    transition: opacity 1.5s ease;
}

.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.2s;
}

.delay-2 {
    transition-delay: 0.4s;
}

.delay-3 {
    transition-delay: 0.6s;
}

/* Responsive */
@media (max-width: 1024px) {

    /* Global Section Spacing for Mobile */
    .section-editorial,
    .section-expertises {
        padding: 6rem 0 !important;
    }

    .site-footer {
        padding: 4rem 0 2rem;
    }

    .adn-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .pillars-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 4rem;
    }

    .pillar-card {
        padding: 2rem;
    }

    .pillar-number {
        margin-bottom: 2rem;
    }

    .site-header {
        padding: 1.5rem 5%;
    }

    .main-nav {
        display: none;
        /* Simplification mobile */
    }

    .footer-cta {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 2rem;
        margin-bottom: 4rem;
    }

    .footer-cta h2 {
        font-size: clamp(2.5rem, 8vw, 3.5rem);
    }

    .footer-bottom {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
        text-align: center;
    }

    .footer-links {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1.5rem;
    }

    .footer-links a,
    .footer-links span {
        margin-left: 0;
    }

    /* Editorial Mobile Adjustments */
    .editorial-container {
        padding-top: 2rem;
        min-height: auto;
    }

    .editorial-image-container {
        height: 50vh;
        min-height: 400px;
        margin-top: 3rem;
    }

    .editorial-body {
        padding: 1.5rem;
        margin-top: -3rem;
        background: rgba(10, 10, 12, 0.85);
        /* Slightly more opaque for legibility */
    }

    .cursor-dot,
    .cursor-outline {
        display: none !important;
    }

    body {
        cursor: auto;
    }

    .nav-link,
    .btn-primary,
    .btn-secondary,
    a,
    button {
        cursor: pointer !important;
    }

    /* --- Mobile Interaction Fallbacks --- */

    /* 1. Vision Section (Spotlight) */
    .section-vision {
        cursor: auto;
        display: block !important;
        padding: 6rem 5% !important;
        min-height: auto !important;
        background-color: #000 !important;
    }

    .section-vision .vision-content {
        position: relative;
        z-index: 10 !important;
        width: 100% !important;
        margin: 0 !important;
        transform: none !important;
    }

    .section-vision .fade-up {
        opacity: 1 !important;
        transform: translateY(0) !important;
        transition: none !important;
        visibility: visible !important;
    }

    .vision-quote {
        color: var(--color-text) !important;
        font-size: clamp(2.5rem, 8vw, 4rem) !important;
        margin-bottom: 2rem !important;
    }

    .vision-text {
        color: var(--color-text-muted) !important;
    }

    .spotlight {
        display: none !important;
        /* Remove spotlight that requires cursor */
    }

    /* 2. Expertises Section (Hover Background) */
    .expertises-bg {
        opacity: 0.3 !important;
        /* Show permanently, but faintly */
        transform: scale(1) !important;
    }

    .section-expertises .pillar-card {
        opacity: 1 !important;
        /* Never fade out other cards on mobile */
    }

}