/* ============================================================
   FRANCK SIKORSKI — PORTFOLIO
   Visual reference: verenamichelitsch.com
   ============================================================ */

/* --- RESET & BASE ----------------------------------------- */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:        #ffffff;
  --color-text:      #000000;
  --color-muted:     #999999;
  --color-border:    #e8e8e8;
  --color-overlay:   rgba(0, 0, 0, 0.72);

  --font-serif:      'EB Garamond', Georgia, serif;
  --font-sans:       'Inter', -apple-system, sans-serif;

  --header-h:        52px;
  --frame:           10px;          /* side frame like verenamichelitsch */
  --pad-outer:       clamp(16px, 3vw, 40px);
  --grid-gap:        8px;

  --size-name:       clamp(1.1rem, 2vw, 1.4rem);
  --size-nav:        0.68rem;
  --size-filter:     0.68rem;
  --size-card-label: 0.65rem;
  --size-card-title: 0.72rem;
  --size-bio:        clamp(0.82rem, 1vw, 0.9rem);
  --size-meta-label: 0.6rem;
  --size-project-h1: clamp(1.8rem, 4vw, 3rem);
}

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding: 0 var(--frame);      /* architectural side frame */
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  width: 100%;
  height: auto;
}


/* --- LAYOUT ----------------------------------------------- */

main {
  position: relative;
  z-index: 1;
  background-color: var(--color-bg);
}

/* --- HEADER ----------------------------------------------- */

.site-header {
  position: fixed;
  top: 0;
  left: var(--frame);
  right: var(--frame);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 var(--pad-outer);
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.name-link {
  font-family: 'Newsreader', serif;
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.03em;
  transition: opacity 0.2s ease;
}

.name-link:hover {
  opacity: 0.45;
}

.header-nav {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: var(--size-nav);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--color-text);
}

/* spacer to push content below fixed header */
.header-spacer {
  height: var(--header-h);
}


/* --- TAGLINE ---------------------------------------------- */

.tagline {
  padding: 1.2rem var(--pad-outer) 0;
}

.tagline p {
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
}


/* --- FILTER BAR ------------------------------------------- */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  padding: 1.1rem var(--pad-outer) 4rem;
}

.filter-btn {
  background: none;
  border: 1px solid #c8c8c8;
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: var(--size-filter);
  font-weight: 400;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-text);
  padding: 0.3em 0.9em;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

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

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


/* --- PROJECT GRID (masonry 2 col) ------------------------- */

.project-grid {
  padding: 0 var(--pad-outer);
  padding-bottom: 4rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--grid-gap);
}

.project-card {
  margin-bottom: 0;
  min-width: 0;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

.project-card.hidden {
  display: none;
}

.project-link {
  display: block;
}

/* IMAGE CONTAINER */
.project-image {
  position: relative;
  overflow: hidden;
  line-height: 0;    /* remove inline gap */
}

.project-image img,
.project-image video {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
  transform: scale(1);
}


/* HOVER OVERLAY — désactivé */
.project-overlay {
  display: none;
}

/* Zoom sur image au survol */
.project-card:hover .project-image img {
  transform: scale(1.04);
}

/* Swap image → vidéo au survol */
.project-image--video-swap .img-default {
  position: relative;
  z-index: 1;
  transition: opacity 0.4s ease;
}
.project-image--video-swap video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.project-card:hover .project-image--video-swap video {
  opacity: 1;
}
.project-card:hover .project-image--video-swap .img-default {
  opacity: 0;
}

/* Logo overlay sur vignette */
.project-image .card-logo-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  pointer-events: none;
  transition: none;
}
.project-card:hover .project-image .card-logo-overlay {
  transform: scale(1);
}

/* Swap image au survol */
.project-image--swap .img-rollover {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.5s ease;
}
.project-card:hover .project-image--swap .img-rollover {
  opacity: 1;
}

/* BELOW-IMAGE LABEL */
.project-info {
  padding: 0.5rem 0 0.25rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
}

.project-info .project-client {
  font-size: var(--size-card-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.project-info .project-title {
  font-size: var(--size-card-title);
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-text);
  text-transform: uppercase;
  line-height: 1.3;
}


/* --- FOOTER ----------------------------------------------- */

.site-footer {
  position: relative;
  z-index: 0;
  border-top: 1px solid var(--color-text);
  padding: 2rem var(--pad-outer) 2rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem var(--pad-outer);
  background-color: var(--color-bg);
}

.footer-col {
  min-width: 0;
}

.footer-col--about {
  grid-column: 1 / -1;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.footer-col--about .bio-text {
  font-family: 'Newsreader', serif;
  font-weight: 400;
  font-size: clamp(16px, 3.5vw, 36px);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 0.3em;
}

.footer-col--about .bio-availability {
  font-family: 'Newsreader', serif;
  font-weight: 300;
  font-size: clamp(16px, 3.5vw, 36px);
  letter-spacing: -0.03em;
  text-transform: none;
  border-bottom: none;
}

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.footer-label {
  font-size: var(--size-meta-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 400;
  margin-bottom: 0.9rem;
}

.bio-text {
  font-size: var(--size-bio);
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 0.9em;
}

.bio-availability {
  display: inline-block;
  font-size: var(--size-meta-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 0.4rem;
  border-bottom: 1px solid var(--color-text);
  padding-bottom: 2px;
}

.info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.info-list li {
  font-size: 0.75rem;
  color: var(--color-text);
  line-height: 1.4;
}

.info-list a {
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.info-list a:hover {
  border-bottom-color: var(--color-text);
}

.footer-copy,
.footer-made {
  font-size: 0.6rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-muted);
}


/* --- ANIMATIONS ------------------------------------------- */

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


/* ============================================================
   PAGES PROJET
   ============================================================ */

/* --- PROJET : HERO ---------------------------------------- */

.project-hero {
  padding: 2rem var(--pad-outer) 1.8rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: end;
  border-bottom: 1px solid var(--color-border);
}

.project-hero-left {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.project-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--size-meta-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  transition: color 0.2s ease;
}

.project-back:hover {
  color: var(--color-text);
}

.project-back-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

.project-back:hover .project-back-arrow {
  transform: translateX(-3px);
}

.project-hero-client {
  font-size: var(--size-meta-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.project-hero-title {
  font-family: var(--font-serif);
  font-size: var(--size-project-h1);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.015em;
}

.project-hero-right {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  padding-bottom: 0.25rem;
}

.project-meta-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.project-meta-label {
  font-size: var(--size-meta-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.project-meta-value {
  font-size: 0.8rem;
  color: var(--color-text);
}

/* --- LANG SWITCHER --------------------------------------- */

.lang-switcher {
  display: flex;
  gap: 0.3rem;
}

.header-nav .lang-switcher {
  padding-right: 1.5rem;
  border-right: 1px solid var(--color-border);
  margin-right: 0.5rem;
}

.lang-btn {
  background: none;
  border: 1px solid #c8c8c8;
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text);
  padding: 0.25em 0.7em;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

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

.lang-btn:hover:not(.active) {
  background-color: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

/* --- PROJET : DESCRIPTION -------------------------------- */

.project-description {
  padding: 2rem var(--pad-outer) 4rem;
}

.lang-block {
  display: none;
}

.lang-block.active {
  display: block;
}

.project-description p {
  font-family: 'Newsreader', serif;
  font-weight: 400;
  font-size: clamp(16px, 3.5vw, 33px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: 0.5em;
}

.project-description p:last-child {
  margin-bottom: 0;
}

/* --- PROJET : GALERIE ------------------------------------ */

.project-gallery {
  padding: 0 0 3rem;
  display: flex;
  flex-direction: column;
  gap: var(--grid-gap);
}

.gallery-row {
  display: grid;
  gap: var(--grid-gap);
}

.gallery-row.cols-1 { grid-template-columns: 1fr; }
.gallery-row.cols-2 { grid-template-columns: 1fr 1fr; }
.gallery-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.gallery-row.cols-2-1 { grid-template-columns: 2fr 1fr; }
.gallery-row.cols-1-2 { grid-template-columns: 1fr 2fr; }

.gallery-item {
  overflow: hidden;
  background-color: #ffffff;
  line-height: 0;
  display: flex;
  flex-direction: column;
  gap: var(--grid-gap);
}

.gallery-item img,
.gallery-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.gallery-item.auto img,
.gallery-item.auto video {
  height: auto;
  object-fit: unset;
}


.gallery-item.tall   { aspect-ratio: 3 / 4; }
.gallery-item.wide   { aspect-ratio: 16 / 9; }
.gallery-item.square { aspect-ratio: 1 / 1; }
.gallery-item.auto   { aspect-ratio: auto; }
.gallery-item.auto img { height: auto; }

/* --- GALLERY VIDEO PLAYER ------------------------------- */

.gallery-video-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  line-height: 0;
  cursor: pointer;
}

.gallery-item.auto .gallery-video-wrap {
  height: auto;
}

.gallery-video-wrap video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-item.auto .gallery-video-wrap video {
  height: auto;
  object-fit: unset;
}

.gallery-video-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem 1.25rem 1rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.5));
  display: flex;
  align-items: center;
  gap: 0.75rem;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.gallery-video-wrap:hover .gallery-video-controls,
.gallery-video-wrap.is-paused .gallery-video-controls,
.gallery-video-wrap.show-controls .gallery-video-controls {
  opacity: 1;
  pointer-events: auto;
}

.gallery-video-btn {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-video-btn svg {
  width: 20px;
  height: 20px;
  fill: #fff;
}

.gallery-video-progress {
  flex: 1;
  height: 2px;
  background: rgba(255, 255, 255, 0.35);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  transition: height 0.15s ease;
}

.gallery-video-wrap:hover .gallery-video-progress {
  height: 3px;
}

.gallery-video-progress-fill {
  height: 100%;
  background: #fff;
  border-radius: 2px;
  width: 0%;
  pointer-events: none;
}

.gallery-video-time {
  font-family: 'Inter', sans-serif;
  font-size: 0.62rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.8);
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: 0.03em;
}

/* --- PROJET : NAV --------------------------------------- */

.project-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--color-border);
  position: relative;
  z-index: 1;
  background-color: var(--color-bg);
}

.project-nav-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.2rem var(--pad-outer);
  transition: background-color 0.2s ease;
}

.project-nav-item:first-child {
  border-right: 1px solid var(--color-border);
}

.project-nav-item:last-child {
  text-align: right;
}

.project-nav-item:hover {
  background-color: rgba(0,0,0,0.03);
}

.project-nav-direction {
  font-size: var(--size-meta-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.project-nav-name {
  font-family: var(--font-serif);
  font-size: clamp(0.9rem, 1.4vw, 1.05rem);
  color: var(--color-text);
}


/* --- RESPONSIVE ------------------------------------------ */

@media (max-width: 1100px) {
  .project-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  :root { --pad-outer: 16px; }

  .project-grid { grid-template-columns: repeat(2, 1fr); }

  .site-footer {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .footer-col--clients {
    grid-column: 1 / -1;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }

  .project-hero {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .gallery-row.cols-2,
  .gallery-row.cols-3,
  .gallery-row.cols-2-1,
  .gallery-row.cols-1-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    height: auto;
    padding: 0.8rem var(--pad-outer);
    gap: 0.4rem;
  }

  .header-spacer {
    height: auto;
    padding-top: calc(var(--header-h) + 2rem);
  }

  .name-link {
    font-size: clamp(22px, 6vw, 36px);
  }

  .header-nav {
    gap: 1rem;
    flex-wrap: wrap;
  }

  .project-grid { grid-template-columns: repeat(2, 1fr); }

  .filter-bar { gap: 0.35rem; }

  .footer-info {
    grid-template-columns: 1fr 1fr;
  }

  .project-nav {
    grid-template-columns: 1fr;
  }
  .project-nav-item:first-child {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .project-nav-item:last-child {
    text-align: left;
  }
}