/* ============================================================
   Philippe Carpentier — Site multi-pages
   Inspiré maxwechsler.fr : blanc, Helvetica, minimal
   ============================================================ */

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

:root {
  --black: #000000;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #ededed;
  --gray-300: #d5d5d5;
  --gray-400: #c4b8b0;
  --gray-500: #999999;
  --gray-600: #7d7d7d;
  --gray-700: #555555;
  --gray-800: #333333;
  --gold: #b8922e;

  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --transition: 0.3s ease;
  --gutter: 5vw;
  --max-width: 1400px;
}

html {
  font-size: 16px;
}

body {
  background: var(--white);
  color: var(--black);
  font-family: var(--font);
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

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

ul, ol {
  list-style: none;
}

/* ── Typography ───────────────────────────────────────────── */
.t-heading {
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.t-label {
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-600);
}

.t-body {
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  font-weight: 300;
  line-height: 1.8;
  color: var(--gray-700);
}

/* ── Nav ──────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: 56px;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  transition: border-color var(--transition);
}

.nav__logo {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--black);
}

.nav__logo span {
  font-weight: 300;
  font-style: italic;
}

/* ── Nav links ─────────────────────────────────────────────── */
.nav__links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav__links a {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-600);
  transition: color var(--transition);
  position: relative;
}

.nav__links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--black);
  transition: width 0.35s ease;
}

.nav__links a:hover {
  color: var(--black);
}

.nav__links a:hover::after {
  width: 100%;
}

.nav__links a.active {
  color: var(--black);
}

.nav__links a.active::after {
  width: 100%;
}

/* ── Page wrapper ─────────────────────────────────────────── */
.page {
  padding-top: 56px;
}

.page__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 7rem) var(--gutter);
}

/* ── Hero (index) ─────────────────────────────────────────── */
.hero {
  position: relative;
  height: calc(100svh - 56px);
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
}

.hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
  transition: opacity 1.2s ease;
}

.hero.loaded .hero__bg-img {
  opacity: 0.15;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 var(--gutter);
  animation: fadeUp 1s ease forwards;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero__title {
  font-size: clamp(3rem, 9vw, 8rem);
  font-weight: 300;
  line-height: 1;
  color: var(--black);
  margin-bottom: 0.3em;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.6rem);
  font-weight: 300;
  font-style: italic;
  color: var(--gray-600);
  margin-bottom: 2rem;
}

.hero__info {
  display: flex;
  gap: 2rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

.hero__info-item {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--gray-600);
  letter-spacing: 0.05em;
}

.hero__info-sep {
  width: 24px;
  height: 1px;
  background: var(--gray-300);
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-500);
  animation: pulse 2.5s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
  50% { opacity: 1; transform: translateX(-50%) translateY(4px); }
}

/* ── Section titles ───────────────────────────────────────── */
.section-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 300;
  line-height: 1.1;
  color: var(--black);
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.section-label {
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 1.5rem;
  display: block;
}

.section-divider {
  width: 100%;
  height: 1px;
  background: var(--gray-200);
  margin: 3rem 0;
}

/* ── Exposition page ──────────────────────────────────────── */
.expo-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 8rem);
  align-items: start;
  margin-bottom: clamp(4rem, 8vw, 7rem);
}

.expo-intro__text {
  padding-top: 1rem;
}

.expo-intro__body p {
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  font-weight: 300;
  line-height: 1.85;
  color: var(--gray-700);
  margin-bottom: 1.5rem;
}

.expo-intro__signature {
  font-style: italic;
  font-size: 1.2rem;
  color: var(--gold);
  margin-top: 2rem;
}

.expo-intro__image {
  position: relative;
  overflow: hidden;
}

.expo-intro__image img {
  width: 100%;
  display: block;
  transition: transform 0.6s ease;
}

.expo-intro__image:hover img {
  transform: scale(1.02);
}

/* Info cards */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  margin-bottom: clamp(4rem, 8vw, 7rem);
}

.info-card {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--gray-200);
}

.info-card:last-child {
  border-right: none;
}

.info-card__label {
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.info-card__value {
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--black);
  line-height: 1.35;
  margin-bottom: 0.4rem;
}

.info-card__detail {
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--gray-600);
}

/* Invitation */
.invitation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 8rem);
  align-items: center;
}

.invitation__image {
  overflow: hidden;
}

.invitation__image img {
  width: 100%;
  display: block;
  transition: transform 0.6s ease;
}

.invitation__image:hover img {
  transform: scale(1.02);
}

.invitation__title {
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  font-weight: 300;
  color: var(--black);
  line-height: 1.15;
  margin-bottom: 0.25rem;
}

.invitation__title span {
  font-style: italic;
}

.invitation__subtitle {
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 2rem;
}

.invitation__details {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--gray-200);
}

.invitation__date {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--black);
}

.invitation__period,
.invitation__address {
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--gray-600);
  line-height: 1.6;
}

/* ── Galerie page ─────────────────────────────────────────── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}

.gallery-item__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover .gallery-item__img {
  transform: scale(1.04);
}

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.85);
  opacity: 0;
  transition: opacity 0.35s ease;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
}

.gallery-item:hover .gallery-item__overlay {
  opacity: 1;
}

.gallery-item__title {
  font-size: 1rem;
  font-weight: 400;
  color: var(--black);
  margin-bottom: 0.2rem;
}

.gallery-item__technique {
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--gray-600);
}

.gallery-placeholder {
  width: 100%;
  height: 100%;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-placeholder span {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-500);
}

/* ── Lightbox ─────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.96);
  z-index: 500;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
  padding: 2rem;
}

.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox__inner {
  position: relative;
  max-width: 900px;
  width: 100%;
}

.lightbox__img {
  width: 100%;
  max-height: 78vh;
  object-fit: contain;
}

.lightbox__caption {
  margin-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.lightbox__title {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--black);
}

.lightbox__date {
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--gray-600);
}

.lightbox__close {
  position: fixed;
  top: 1.25rem;
  right: var(--gutter);
  background: none;
  border: 1px solid var(--gray-300);
  color: var(--gray-600);
  font-family: var(--font);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: all var(--transition);
  border-radius: 100px;
}

.lightbox__close:hover {
  border-color: var(--black);
  color: var(--black);
}

/* ── Artiste page ─────────────────────────────────────────── */
.artist-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: clamp(3rem, 6vw, 8rem);
  align-items: start;
}

.artist__portrait-col {
  position: sticky;
  top: calc(56px + 2rem);
}

.artist__portrait-img {
  width: 100%;
  margin-bottom: 1rem;
}

.artist__name {
  font-size: 1rem;
  font-weight: 400;
  color: var(--black);
  margin-bottom: 0.2rem;
}

.artist__dates {
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--gray-600);
}

.artist__title {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--black);
  margin-bottom: 2.5rem;
}

.artist__bio p {
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  font-weight: 300;
  line-height: 1.85;
  color: var(--gray-700);
  margin-bottom: 1.5rem;
}

.artist__quote {
  margin: 2.5rem 0;
  padding: 1.5rem 2rem;
  border-left: 1px solid var(--gold);
  background: linear-gradient(to right, rgba(184, 146, 46, 0.04), transparent);
}

.artist__quote blockquote {
  font-size: 1.2rem;
  font-style: italic;
  font-weight: 300;
  color: var(--gray-800);
  line-height: 1.55;
  margin-bottom: 0.6rem;
}

.artist__quote cite {
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  font-style: normal;
}

/* Timeline */
.expo-timeline {
  border-left: 1px solid var(--gray-200);
  margin-left: 0.5rem;
}

.expo-timeline__item {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1.5rem;
  align-items: baseline;
  padding: 0.65rem 0 0.65rem 1.5rem;
  border-bottom: 1px solid var(--gray-100);
  transition: background var(--transition);
}

.expo-timeline__item:hover {
  background: var(--gray-100);
}

.expo-timeline__year {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--gold);
  white-space: nowrap;
}

.expo-timeline__detail {
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--gray-700);
  line-height: 1.5;
}

/* Poem */
.cheng-poem__text {
  font-style: italic;
  font-size: 1.15rem;
  font-weight: 300;
  color: var(--gray-800);
  line-height: 2;
  padding-left: 1.5rem;
  border-left: 1px solid var(--gold);
  margin-bottom: 1rem;
}

.cheng-poem__text p {
  margin-bottom: 0;
}

.cheng-poem__cite {
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-600);
  padding-left: 1.5rem;
}

/* ── Events ───────────────────────────────────────────────── */
.events-list {
  display: flex;
  flex-direction: column;
}

.event-item {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 2.5rem;
  align-items: center;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--gray-200);
  transition: background var(--transition), padding var(--transition);
}

.event-item:first-child {
  border-top: 1px solid var(--gray-200);
}

.event-item:hover {
  background: var(--gray-100);
  padding-left: 1rem;
  padding-right: 1rem;
}

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

.event-date .day {
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--black);
  line-height: 1;
}

.event-date .month {
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
}

.event-title {
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--black);
  margin-bottom: 0.25rem;
}

.event-desc {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--gray-600);
}

.event-cta {
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--black);
  border: 1px solid var(--gray-300);
  padding: 0.55rem 1.2rem;
  border-radius: 100px;
  transition: all var(--transition);
  white-space: nowrap;
}

.event-cta:hover {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

/* ── Contact page ─────────────────────────────────────────── */
.contact-layout {
  max-width: 560px;
}

.contact__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 300;
  color: var(--black);
  margin-bottom: 1rem;
}

.contact__subtitle {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--gray-600);
  margin-bottom: 3rem;
  line-height: 1.6;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--gray-300);
  padding: 0.85rem 0;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--black);
  outline: none;
  transition: border-color var(--transition);
  resize: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-500);
  font-style: italic;
}

.form-group input:focus,
.form-group textarea:focus {
  border-bottom-color: var(--black);
}

.form-group textarea {
  min-height: 100px;
}

.btn-primary {
  display: inline-block;
  background: var(--white);
  border: 1px solid var(--black);
  color: var(--black);
  font-family: var(--font);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.9rem 2.2rem;
  cursor: pointer;
  transition: all var(--transition);
  align-self: flex-start;
  margin-top: 0.5rem;
  border-radius: 100px;
}

.btn-primary:hover {
  background: var(--black);
  color: var(--white);
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--white);
  border: 1px solid var(--gray-300);
  color: var(--black);
  font-family: var(--font);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.8rem 1.5rem;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  border-radius: 100px;
}

.btn-download::after {
  content: "↓";
  font-size: 0.85rem;
}

.btn-download:hover {
  border-color: var(--black);
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--gray-200);
  padding: 2.5rem var(--gutter);
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.footer__copy {
  font-size: 0.72rem;
  font-weight: 300;
  color: var(--gray-600);
}

.footer__nav {
  display: flex;
  gap: 2rem;
}

.footer__nav a {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-600);
  transition: color var(--transition);
}

.footer__nav a:hover {
  color: var(--black);
}

/* ── Scroll reveal ────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .expo-intro {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .expo-intro__image {
    order: -1;
  }

  .artist-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .artist__portrait-col {
    position: static;
    width: 200px;
  }

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

  .info-card {
    border-right: none;
    border-bottom: 1px solid var(--gray-200);
    padding: 1.75rem 0;
  }

  .info-card:last-child {
    border-bottom: none;
  }

  .invitation {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .event-item {
    grid-template-columns: 70px 1fr;
    gap: 1.5rem;
  }

  .event-cta {
    display: none;
  }

  .footer {
    flex-direction: column;
    text-align: center;
  }

  .gallery-item {
    aspect-ratio: 1;
  }
}

@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .hero__title {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }
}

/* ── Img placeholder ──────────────────────────────────────── */
.img-placeholder {
  width: 100%;
  height: 100%;
  background: var(--gray-100);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  position: absolute;
  inset: 0;
}

.img-placeholder__icon {
  width: 32px;
  height: 32px;
  opacity: 0.15;
}

.img-placeholder__text {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-500);
}