/* =============================================================
   CFP Arts Genève — main.css  v3
   ============================================================= */

/* ---------------------------------------------------------------
   CSS CUSTOM PROPERTIES
   --------------------------------------------------------------- */
:root {
    /* Colors */
    --color-black:      #000000;
    --color-white:      #FFFFFF;
    --color-grey-dark:  #111111;
    --color-grey-mid:   #333333;
    --color-grey-light: #888888;
    --color-line:       rgba(255, 255, 255, 0.22);

    /* Typography */
    --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Font-size system */
    --font-size-xs:  0.65rem;
    --font-size-s:   0.8rem;
    --font-size-m:   1rem;
    --font-size-l:   clamp(1.1rem, 2vw, 1.5rem);
    --font-size-xl:  clamp(2.8rem, 5.5vw, 5.5rem);

    /* Layout */
    --inner-width:   1600px;
    --container-px:  clamp(1.5rem, 4vw, 5rem);

    /* Structural heights */
    --header-h:         80px;
    --footer-bar-h:     44px;
    --nav-track-h:      46px;   /* height of the prev/dots/next bar */
    --flip-text-h:      140px;  /* generous height for descenders */
    --flip-zone-h:      calc(var(--nav-track-h) + var(--flip-text-h));

    /* Easing */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out:   cubic-bezier(0.65, 0, 0.35, 1);
}

/* ---------------------------------------------------------------
   RESET & BASE
   --------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
    font-family: var(--font-base);
    background-color: var(--color-black);
    color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
}

body.home-scroll-locked { overflow: hidden; }

img    { display: block; max-width: 100%; height: auto; }
a      { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }

/* ---------------------------------------------------------------
   LAYOUT
   --------------------------------------------------------------- */
.inner-container {
    max-width: var(--inner-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-px);
    padding-right: var(--container-px);
}

/* ---------------------------------------------------------------
   HEADER
   --------------------------------------------------------------- */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 900;
    height: var(--header-h);
    display: flex;
    align-items: center;
}

.page-home .site-header              { background: transparent; }
body:not(.page-home) .site-header    { background-color: var(--color-black); border-bottom: 1px solid rgba(255,255,255,0.08); }

.header-inner {
    max-width: var(--inner-width);
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--container-px);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.site-logo { display: flex; align-items: center; line-height: 1; }
.site-logo img, .site-logo .custom-logo { max-height: 52px; width: auto; display: block; }
.logo-img-fallback { height: 48px; width: auto; display: block; }

/* Navigation — increased gap between items */
.site-nav { display: flex; align-items: center; }
.nav-list  { display: flex; align-items: center; gap: 12px; }   /* gap between pill buttons */

.nav-link {
    display: inline-block;
    padding: 0.45rem 1.1rem;
    font-size: var(--font-size-s);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-black);
    background-color: var(--color-white);
    border: 1px solid var(--color-white);
    transition: background-color 0.25s ease, color 0.25s ease;
}
.nav-link:hover, .nav-link.is-active { background-color: var(--color-black); color: var(--color-white); border-color: var(--color-white); }
.page-home .nav-link                 { background-color: var(--color-white); color: var(--color-black); }
.page-home .nav-link:hover           { background-color: transparent; color: var(--color-white); border-color: var(--color-white); }

/* Burger */
.burger-btn { display: none; flex-direction: column; gap: 5px; padding: 8px; z-index: 1001; position: relative; }
.burger-line {
    display: block; width: 26px; height: 2px;
    background: var(--color-white);
    transition: transform 0.35s var(--ease-out-expo), opacity 0.3s ease;
    transform-origin: center;
}
.burger-btn.is-active .burger-line--top { transform: translateY(7px) rotate(45deg); }
.burger-btn.is-active .burger-line--mid { opacity: 0; transform: scaleX(0); }
.burger-btn.is-active .burger-line--bot { transform: translateY(-7px) rotate(-45deg); }

/* ---------------------------------------------------------------
   MOBILE MENU — slower, more premium (0.85s)
   top-to-bottom drop-in: items start at translateY(-100%)
   --------------------------------------------------------------- */
.mobile-menu {
    position: fixed; inset: 0;
    background-color: var(--color-black);
    z-index: 800;
    display: flex; align-items: center; justify-content: center;
    transform: translateY(-100%);
    transition: transform 0.85s var(--ease-out-expo);   /* slower = more premium */
    pointer-events: none;
}
.mobile-menu.is-open { transform: translateY(0); pointer-events: all; }

.mobile-menu__inner { display: flex; flex-direction: column; align-items: flex-start; width: 100%; padding: 0 var(--container-px); }
.mobile-nav__list { width: 100%; }
.mobile-nav__item { border-bottom: 1px solid rgba(255,255,255,0.1); overflow: hidden; }

/* Items drop from above (top-to-bottom feel) */
.mobile-nav__link {
    display: flex; align-items: baseline; gap: 1.5rem;
    padding: 2rem 0; width: 100%;
    transform: translateY(-100%);
    opacity: 0;
    transition: transform 0.6s var(--ease-out-expo), opacity 0.55s ease;
}
.mobile-menu.is-open .mobile-nav__link { transform: translateY(0); opacity: 1; }
.mobile-menu.is-open .mobile-nav__item:nth-child(1) .mobile-nav__link { transition-delay: 0.18s; }
.mobile-menu.is-open .mobile-nav__item:nth-child(2) .mobile-nav__link { transition-delay: 0.28s; }
.mobile-menu.is-open .mobile-nav__item:nth-child(3) .mobile-nav__link { transition-delay: 0.38s; }

.mobile-nav__number { font-size: var(--font-size-s); color: var(--color-grey-light); font-weight: 400; }
.mobile-nav__text   { font-size: clamp(2rem, 10vw, 3.5rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1; }

.mobile-menu__footer {
    display: flex; gap: 2rem; margin-top: 3rem;
    opacity: 0; transform: translateY(-14px);
    transition: opacity 0.5s ease 0.55s, transform 0.5s var(--ease-out-expo) 0.55s;
}
.mobile-menu.is-open .mobile-menu__footer { opacity: 1; transform: translateY(0); }
.mobile-menu__contact-link { font-size: var(--font-size-s); font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.5; transition: opacity 0.2s; }
.mobile-menu__contact-link:hover { opacity: 1; }

/* ---------------------------------------------------------------
   FOOTER
   --------------------------------------------------------------- */
.site-footer {
    padding: 0;
    border-top: 1px solid rgba(255,255,255,0.12);
    background: var(--color-black);
    height: var(--footer-bar-h);
}

.page-home .site-footer {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    border-top: 1px solid var(--color-line);
    background: transparent;
    z-index: 100;
    height: var(--footer-bar-h);
}

/* Single project & other pages — footer always at natural scroll end */
body:not(.page-home) .site-footer {
    position: relative;
}

.footer-inner {
    max-width: var(--inner-width); margin: 0 auto; padding: 0 var(--container-px);
    display: flex; align-items: center; justify-content: space-between;
    height: 100%; gap: 1rem;
}
.footer-copyright { font-size: var(--font-size-xs); font-weight: 400; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.6; }
.footer-links { display: flex; gap: 2rem; }
.footer-link  { font-size: var(--font-size-xs); font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.7; transition: opacity 0.2s; }
.footer-link:hover { opacity: 1; }

/* ---------------------------------------------------------------
   HOMEPAGE SLIDER
   --------------------------------------------------------------- */
.page-home #main-content { position: relative; }

.home-slider {
    position: relative;
    width: 100vw; height: 100vh;
    overflow: hidden;
    background: var(--color-black);
    user-select: none;
}

/* Full-viewport lines */
.slider-line { position: absolute; left: 0; right: 0; height: 1px; background: var(--color-line); z-index: 50; pointer-events: none; }
.slider-line--top { top: var(--header-h); }
.slider-line--mid { bottom: calc(var(--flip-zone-h) + var(--footer-bar-h)); }
.slider-line--bot { bottom: var(--footer-bar-h); }

/* Slides */
.slides-container { position: absolute; inset: 0; z-index: 1; }

.slide {
    position: absolute; inset: 0;
    /* clip-path is set and animated by GSAP — starts inset(0 0 0 0) = fully visible */
    will-change: clip-path;
    overflow: hidden;
}

.slide__link { display: block; position: absolute; inset: 0; z-index: 2; }

.slide__bg {
    position: absolute; inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transform-origin: center center;
    will-change: transform;    /* for zoom animation */
}

/* ── Static "À propos" — shifted lower with more top offset ── */
.slide-static-content {
    position: absolute;
    top: calc(var(--header-h) + 4vw);   /* shifted down from header */
    left: 0; right: 0;
    z-index: 60;
    pointer-events: none;
}

.static-label {
    font-size: clamp(1.8rem, 3.2vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.static-desc {
    font-size: var(--font-size-l);
    line-height: 1.75;
    max-width: 840px;
    margin-bottom: 1.75rem;
    opacity: 0.9;
}

.static-cta {
    display: inline-block;
    padding: 0.6rem 1.4rem;
    font-size: var(--font-size-s);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: var(--color-white);
    color: var(--color-black);
    pointer-events: all;
    border: 1px solid var(--color-white);
    transition: background 0.25s ease, color 0.25s ease;
}
.static-cta:hover { background: transparent; color: var(--color-white); }

/* ── FLIP ZONE ── */
.flip-zone {
    position: absolute;
    bottom: var(--footer-bar-h);
    left: 0; right: 0;
    height: var(--flip-zone-h);
    z-index: 60;
    overflow: hidden;       /* hard clip — nothing bleeds */
    display: flex;
    flex-direction: column;
}

/*
 * Nav track — top border comes from .slider-line--mid (the line above).
 * Bottom border added here via border-bottom to create the "contained track" effect.
 */
.slider-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    height: var(--nav-track-h);
    border-bottom: 1px solid var(--color-line);  /* ← bottom border = contained track */
    padding: 0 var(--container-px);
    max-width: var(--inner-width);
    margin: 0 auto;
    width: 100%;
}

.slider-prev, .slider-next {
    display: flex; align-items: center; gap: 0.4rem;
    font-size: var(--font-size-xs);
    font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
    opacity: 0.7; transition: opacity 0.2s; padding: 4px 0;
}
.slider-prev:hover, .slider-next:hover { opacity: 1; }
.ctrl-bracket { font-size: 0.85rem; opacity: 0.45; }

.slider-dots { display: flex; gap: 6px; align-items: center; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,0.32); transition: background 0.3s, transform 0.3s; padding: 0; }
.dot.is-active { background: var(--color-white); transform: scale(1.3); }

/* ── Flip text — hard clipped, generous height for descenders ── */
.flip-text-area {
    flex: 1;
    position: relative;
    overflow: hidden;       /* strict clip */
    display: flex;
    align-items: center;
    max-width: var(--inner-width);
    margin: 0 auto;
    width: 100%;
    padding: 0 var(--container-px);
    /* Extra vertical padding ensures descenders (g, y, p…) are not clipped */
    padding-top: 8px;
    padding-bottom: 14px;
}

.flip-track {
    position: relative;
    width: 100%;
    height: var(--flip-text-h);    /* matches container height */
    overflow: hidden;
    line-height: 1;
}

.flip-item {
    position: absolute;
    top: 0; left: 0; width: 100%;
    display: flex;
    align-items: center;
    height: 100%;
    line-height: 1;
    will-change: transform;
    backface-visibility: hidden;
}

.flip-item:first-child { position: relative; }

.flip-item__link {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    white-space: nowrap;
    text-decoration: none;
}

/* Scientist name — large, bold */
.flip-scientist {
    font-size: var(--font-size-xl);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.05;
    display: inline;
}

.flip-creator {
    font-size: var(--font-size-l);
    font-weight: 400;
    opacity: 0.8;
    line-height: 1;
}

/* Word spans for GSAP stagger */
.flip-scientist .word,
.flip-creator .word {
    display: inline-block;
}

/* ---------------------------------------------------------------
   LIGHTBOX
   --------------------------------------------------------------- */
.lightbox-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.95); z-index: 9999; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; }
.lightbox-overlay.is-open { opacity: 1; pointer-events: all; }
.lightbox-close { position: absolute; top: 1.5rem; right: 1.5rem; width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; opacity: 0.7; transition: opacity 0.2s; z-index: 10; }
.lightbox-close:hover { opacity: 1; }
.lightbox-video-wrapper { width: 90vw; max-width: 1100px; aspect-ratio: 16/9; position: relative; }
#lightbox-iframe { position: absolute; inset: 0; width: 100%; height: 100%; }

/* ---------------------------------------------------------------
   PROJECTS ARCHIVE
   --------------------------------------------------------------- */
.page-projets-wrapper { padding-top: calc(var(--header-h) + 3rem); padding-bottom: 6rem; min-height: 100vh; }

.projets-title { font-size: var(--font-size-xl); font-weight: 800; letter-spacing: -0.04em; line-height: 1; margin-bottom: 3rem; }

.projects-grid {
    max-width: var(--inner-width); margin: 0 auto; padding: 0 var(--container-px);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    column-gap: 1.5rem;
    row-gap: 3.5rem;
    align-items: start;
}

/* Staggered right column */
.projects-grid .project-card:nth-child(even) { margin-top: 5rem; }

.project-card { position: relative; }
.project-card__link { display: block; }

/* Portrait thumbnail */
.project-card__thumb-wrapper {
    position: relative;
    overflow: visible;       /* corners can bleed outside */
    aspect-ratio: 3 / 4;
    background: var(--color-grey-dark);
}

.project-card__thumb-inner { position: absolute; inset: 0; overflow: hidden; }

.project-card__thumb { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.6s var(--ease-out-expo); }
.project-card__link:hover .project-card__thumb { transform: scale(1.04); }
.project-card__thumb--placeholder { width: 100%; height: 100%; background: #1a1a1a; }

/* Corner indicators — OUTSIDE image */
.project-card__corners { position: absolute; inset: -7px; pointer-events: none; opacity: 0; transition: opacity 0.3s ease; z-index: 5; }
.project-card__link:hover .project-card__corners { opacity: 1; }

.corner { position: absolute; width: 18px; height: 18px; border-color: var(--color-white); border-style: solid; }
.corner--tl { top: 0;    left: 0;   border-width: 2px 0 0 2px; }
.corner--tr { top: 0;    right: 0;  border-width: 2px 2px 0 0; }
.corner--bl { bottom: 0; left: 0;   border-width: 0 0 2px 2px; }
.corner--br { bottom: 0; right: 0;  border-width: 0 2px 2px 0; }

/* Creator — top right with 20px padding from edges */
.project-card__creator {
    position: absolute; top: 0; right: 0;
    background: var(--color-black); color: var(--color-white);
    font-size: var(--font-size-s); font-weight: 700; letter-spacing: 0.08em;
    padding: 8px 20px;
    z-index: 4;
    margin: 20px;
}

/* Info box — bottom left with 20px padding */
.project-card__info {
    position: absolute; bottom: 0; left: 0;
    color: var(--color-white);
    z-index: 4; max-width: 90%;
    margin: 20px;
}

.project-card__scientist {
    font-size: var(--font-size-m);
    font-weight: 700; letter-spacing: 0.05em;
    margin-bottom: 6px;  
    background: var(--color-black);
    padding: 12px 20px 14px;
    
    /* Added this to wrap background to text */
    width: fit-content;
}

.project-card__title {
    font-size: var(--font-size-s);
    font-weight: 400; letter-spacing: 0.03em; line-height: 1.3;
    background: var(--color-black);
    padding: 12px 20px 14px; 
    
    /* Added this to wrap background to text */
    width: fit-content;
text-transform: capitalize;
}

/* ---------------------------------------------------------------
   SINGLE PROJECT
   --------------------------------------------------------------- */
.single-projet {
    padding-top: calc(var(--header-h) + 3rem);
    padding-bottom: 0;          /* let footer follow naturally */
    min-height: calc(100vh - var(--footer-bar-h));
}

/* Back button — smooth transition on hover */
.back-btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-size: var(--font-size-s); font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
    opacity: 0.6; margin-bottom: 2rem;
    transition: opacity 0.3s ease, gap 0.3s ease, letter-spacing 0.3s ease;  /* smooth, not snappy */
}
.back-btn:hover { opacity: 1; gap: 0.8rem; letter-spacing: 0.12em; }

.projet-title { font-size: var(--font-size-xl); font-weight: 800; letter-spacing: -0.04em; line-height: 1.05; margin-bottom: 3rem; }

.projet-hero-wrapper { margin-bottom: 4rem; }
.projet-hero-image { width: 100%; height: auto; display: block; max-height: 70vh; object-fit: cover; }

.projet-body { padding-bottom: 6rem; }

.projet-credits { margin-bottom: 2.5rem; }
.credit-line { font-size: var(--font-size-m); margin-bottom: 0.4rem; display: flex; gap: 0.75rem; align-items: baseline; }
.credit-label { font-weight: 400; opacity: 0.5; font-size: var(--font-size-s); letter-spacing: 0.04em; }
.credit-value { font-weight: 700; font-size: var(--font-size-m); letter-spacing: 0.05em; }

.projet-description { max-width: 820px; margin-bottom: 4rem; font-size: var(--font-size-m); line-height: 1.8; letter-spacing: 0.02em; text-transform: none; }
.projet-description p + p { margin-top: 1.5rem; }

/* Videos 2×2 */
.videos-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-bottom: 4rem; }
.video-episode { cursor: pointer; }
.video-episode__thumb-wrapper { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--color-grey-dark); }
.video-episode__thumb { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s var(--ease-out-expo); }
.video-episode:hover .video-episode__thumb { transform: scale(1.04); }
.video-episode__thumb--placeholder { width: 100%; height: 100%; background: #1a1a1a; }
.video-episode__play { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.3s; }
.video-episode:hover .video-episode__play { opacity: 1; }
.video-episode__title { font-size: var(--font-size-s); font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; padding: 0.6rem 0; opacity: 0.7; }
.projet-back-bottom { margin-top: 1rem; }

/* ---------------------------------------------------------------
   ABOUT
   --------------------------------------------------------------- */
.page-about-wrapper { padding-top: calc(var(--header-h) + 4rem); padding-bottom: 8rem; min-height: calc(100vh - var(--footer-bar-h)); }
.about-title { font-size: var(--font-size-xl); font-weight: 800; letter-spacing: -0.05em; line-height: 1; margin-bottom: 6rem; }
.about-content { max-width: 820px; font-size: var(--font-size-m); line-height: 1.9; letter-spacing: 0.04em; text-transform: none; }
.about-content p + p { margin-top: 2rem; }

/* ---------------------------------------------------------------
   CONTACT
   --------------------------------------------------------------- */
.page-contact-wrapper { padding-top: calc(var(--header-h) + 4rem); padding-bottom: 8rem; min-height: calc(100vh - var(--footer-bar-h)); }
.contact-title { font-size: var(--font-size-xl); font-weight: 800; letter-spacing: -0.05em; line-height: 1; margin-bottom: 2rem; }
.contact-intro { font-size: var(--font-size-m); opacity: 0.7; max-width: 500px; margin-bottom: 4rem; line-height: 1.7; }
.contact-layout { display: grid; grid-template-columns: 1fr 2fr; gap: 6rem; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 2.5rem; }
.contact-info__item { display: flex; flex-direction: column; gap: 0.4rem; }
.contact-info__label { font-size: var(--font-size-xs); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.4; }
.contact-info__value { font-size: var(--font-size-m); font-weight: 500; line-height: 1.5; transition: opacity 0.2s; }
a.contact-info__value:hover { opacity: 0.7; }

.cfp-contact-form, .wpcf7-form { display: flex; flex-direction: column; gap: 1.5rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-label { font-size: var(--font-size-xs); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.5; }
.form-control { background: transparent; border: none; border-bottom: 1px solid rgba(255,255,255,0.3); color: var(--color-white); font-family: var(--font-base); font-size: var(--font-size-m); padding: 0.75rem 0; outline: none; width: 100%; transition: border-color 0.2s; }
.form-control::placeholder { opacity: 0.3; }
.form-control:focus { border-bottom-color: var(--color-white); }
.form-textarea { resize: vertical; min-height: 120px; }
.btn-submit { align-self: flex-start; padding: 0.85rem 2rem; background: var(--color-white); color: var(--color-black); font-family: var(--font-base); font-size: var(--font-size-s); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; transition: background 0.25s ease, color 0.25s ease; cursor: pointer; border: 1px solid var(--color-white); }
.btn-submit:hover { background: transparent; color: var(--color-white); }
.form-response { font-size: var(--font-size-s); padding: 1rem; border: 1px solid rgba(255,255,255,0.2); margin-top: 0.5rem; }

/* CF7 */
.wpcf7-text,.wpcf7-email,.wpcf7-textarea { background: transparent !important; border: none !important; border-bottom: 1px solid rgba(255,255,255,0.3) !important; color: var(--color-white) !important; font-family: var(--font-base) !important; font-size: var(--font-size-m) !important; padding: 0.75rem 0 !important; width: 100% !important; outline: none !important; transition: border-color 0.2s; }
.wpcf7-text:focus,.wpcf7-email:focus,.wpcf7-textarea:focus { border-bottom-color: var(--color-white) !important; }
.wpcf7-submit { align-self: flex-start !important; padding: 0.85rem 2rem !important; background: var(--color-white) !important; color: var(--color-black) !important; font-family: var(--font-base) !important; font-size: var(--font-size-s) !important; font-weight: 700 !important; letter-spacing: 0.1em !important; text-transform: uppercase !important; border: 1px solid var(--color-white) !important; cursor: pointer !important; transition: background 0.25s ease, color 0.25s ease !important; }
.wpcf7-submit:hover { background: transparent !important; color: var(--color-white) !important; }

/* ---------------------------------------------------------------
   404 PAGE
   --------------------------------------------------------------- */
.page-404-body { display: flex; flex-direction: column; min-height: 100vh; }
.error-404-main { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; padding: calc(var(--header-h) + 3rem) var(--container-px) 3rem; text-align: center; }
.error-404-bg-number { position: absolute; font-size: clamp(10rem, 30vw, 22rem); font-weight: 900; letter-spacing: -0.06em; line-height: 1; opacity: 0.05; pointer-events: none; user-select: none; top: 50%; left: 50%; transform: translate(-50%, -50%); white-space: nowrap; }
.error-404-content { position: relative; z-index: 2; }
.error-404-title { font-size: var(--font-size-xl); font-weight: 800; letter-spacing: -0.04em; margin-bottom: 1rem; }
.error-404-text { font-size: var(--font-size-m); opacity: 0.6; margin-bottom: 2.5rem; }
.error-404-link { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1.75rem; background: var(--color-white); color: var(--color-black); font-size: var(--font-size-s); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; border: 1px solid var(--color-white); transition: background 0.25s ease, color 0.25s ease; }
.error-404-link:hover { background: transparent; color: var(--color-white); }

/* ---------------------------------------------------------------
   SCROLL ANIMATIONS
   --------------------------------------------------------------- */
.animate-fade-up { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo); transition-delay: var(--anim-delay, 0s); }
.animate-fade-up.is-visible { opacity: 1; transform: translateY(0); }

/* ---------------------------------------------------------------
   RESPONSIVE
   --------------------------------------------------------------- */
@media (max-width: 900px) {
    .site-nav   { display: none; }
    .burger-btn { display: flex; }

    :root {
        --flip-text-h: 110px;
        --nav-track-h: 44px;
    }

    .flip-scientist { font-size: clamp(1.8rem, 8vw, 3rem); }

    .projects-grid { grid-template-columns: 1fr; row-gap: 2.5rem; }
    .projects-grid .project-card:nth-child(even) { margin-top: 0; }
    .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
    .videos-grid    { grid-template-columns: 1fr; }

    .about-title   { font-size: clamp(3rem, 14vw, 6rem); }
    .contact-title { font-size: clamp(2.5rem, 12vw, 5rem); }
}

@media (max-width: 600px) {
    :root {
        --header-h:     64px;
        --container-px: 1.25rem;
        --flip-text-h:  90px;
        --nav-track-h:  42px;
    }

    .projets-title  { font-size: clamp(2.5rem, 14vw, 4rem); }
    .projet-title   { font-size: clamp(2rem, 10vw, 3.5rem); }
    .flip-scientist { font-size: clamp(1.4rem, 7vw, 2.2rem); }
    .flip-creator   { font-size: 0.8rem; }
    .footer-links   { gap: 1rem; }
    .lightbox-video-wrapper { width: 100vw; }
    .static-label   { font-size: 1.5rem; }
    .static-desc    { font-size: 0.85rem; max-width: 90%; }
}

@media print {
    .site-header,.site-footer,.mobile-menu,.lightbox-overlay { display: none !important; }
    body { background: white; color: black; }
}