/* ===========================
   SYNAPSE — Light editorial theme
   =========================== */

:root {
  --bg: #f6f3ee;
  --bg-warm: #ede8df;
  --bg-white: #fffdf9;
  --text: #1a1a1a;
  --text-soft: #555;
  --text-muted: #999;
  --accent: #c45d3e;
  --accent-light: #f0d5cc;
  --border: #ddd5c8;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ===== COMMON ===== */
.label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.2rem;
}

.editorial-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
}

.editorial-title em {
  font-style: italic;
  color: var(--text-soft);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-bottom: 1px solid var(--text);
  padding-bottom: 2px;
  transition: gap 0.3s var(--ease), border-color 0.3s;
}
.link-arrow:hover { gap: 0.8rem; border-color: var(--accent); color: var(--accent); }

/* ===== NAV ===== */
.topnav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 3rem;
  background: rgba(246, 243, 238, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.topnav__logo {
  font-family: var(--serif);
  font-size: 1.4rem;
  letter-spacing: -0.02em;
}
.topnav__logo sup {
  font-size: 0.5rem;
  vertical-align: super;
  color: var(--text-muted);
}

.topnav__right {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.topnav__links {
  display: flex;
  gap: 1.8rem;
}

.topnav__links a {
  font-size: 0.85rem;
  color: var(--text-soft);
  transition: color 0.2s;
}
.topnav__links a:hover { color: var(--text); }

.topnav__cta {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--bg) !important;
  background: var(--text);
  padding: 0.5rem 1.3rem;
  border-radius: 100px;
  transition: background 0.3s;
}
.topnav__cta:hover { background: var(--accent); }

.topnav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.topnav__burger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text);
  transition: all 0.3s;
}
.topnav__burger.active span:first-child { transform: rotate(45deg) translate(2px, 3px); }
.topnav__burger.active span:last-child { transform: rotate(-45deg) translate(2px, -3px); }

/* ===== HERO ===== */
.hero {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 4rem;
  min-height: 100vh;
  padding: 10rem 3rem 4rem;
  align-items: end;
  max-width: 1400px;
  margin: 0 auto;
}

.hero__intro {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 320px;
  line-height: 1.7;
}

.hero__title {
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 3rem;
}

.hero__rotate-wrapper {
  display: inline-block;
  position: relative;
  color: var(--accent);
}

.hero__rotate {
  display: inline-block;
  transition: opacity 0.4s, transform 0.4s var(--ease);
}

.hero__bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}

.hero__aside {
  font-size: 0.78rem;
  color: var(--text-muted);
  max-width: 200px;
  text-align: right;
  line-height: 1.5;
}

.hero__right {
  position: relative;
  overflow: hidden;
  height: 100%;
  min-height: 300px;
  border-left: 1px solid var(--border);
}

.hero__marquee {
  position: absolute;
  top: 0; bottom: 0;
  width: 100%;
  overflow: hidden;
}

.marquee__inner {
  display: flex;
  flex-direction: column;
  animation: marqueeUp 25s linear infinite;
}

.marquee__inner span {
  display: block;
  font-family: var(--serif);
  font-size: 1.6rem;
  font-style: italic;
  color: var(--text-muted);
  padding: 1rem 2rem;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.marquee__inner span:hover { color: var(--accent); }

@keyframes marqueeUp {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}

/* ===== CLIENTS STRIP ===== */
.clients-strip {
  display: flex;
  align-items: center;
  gap: 3rem;
  padding: 1.8rem 3rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.clients-strip__label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.clients-strip__list {
  display: flex;
  gap: 2.5rem;
}

.clients-strip__list span {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  letter-spacing: -0.01em;
  transition: color 0.2s;
}
.clients-strip__list span:hover { color: var(--text); }

/* ===== APPROCHE ===== */
.approche {
  padding: 8rem 3rem;
  max-width: 1400px;
  margin: 0 auto;
}

.approche__intro {
  max-width: 700px;
  margin-bottom: 5rem;
}

.approche__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}

.approche__num {
  display: block;
  font-family: var(--serif);
  font-size: 3rem;
  font-style: italic;
  color: var(--accent-light);
  margin-bottom: 0.5rem;
  line-height: 1;
}

.approche__col h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  letter-spacing: -0.01em;
}

.approche__col p {
  font-size: 0.9rem;
  color: var(--text-soft);
  line-height: 1.75;
}

/* ===== OFFRES ===== */
.offres {
  padding: 6rem 3rem 8rem;
  background: var(--bg-white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.offres__header {
  max-width: 1400px;
  margin: 0 auto 4rem;
}

.offres__list {
  max-width: 900px;
  margin: 0 auto;
}

.offre {
  border-bottom: 1px solid var(--border);
}

.offre__head {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.8rem 0;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.offre__head::-webkit-details-marker { display: none; }

.offre__num {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
  width: 30px;
}

.offre__name {
  font-family: var(--serif);
  font-size: 1.6rem;
  flex: 1;
  transition: color 0.2s;
}

.offre:hover .offre__name { color: var(--accent); }

.offre__toggle {
  font-size: 1.4rem;
  color: var(--text-muted);
  transition: transform 0.4s var(--ease);
  line-height: 1;
}

.offre[open] .offre__toggle { transform: rotate(45deg); }

.offre__body {
  padding: 0 0 2rem 3.2rem;
  max-width: 620px;
  animation: slideDown 0.4s var(--ease);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.offre__body p {
  font-size: 0.92rem;
  color: var(--text-soft);
  line-height: 1.75;
  margin-bottom: 1rem;
}

.offre__tags {
  display: flex;
  gap: 0.5rem;
}

.offre__tags span {
  font-size: 0.7rem;
  font-family: var(--mono);
  color: var(--accent);
  padding: 0.2rem 0.7rem;
  border: 1px solid var(--accent-light);
  border-radius: 100px;
}

/* ===== EDITORIAL BREAK ===== */
.editorial-break {
  padding: 6rem 3rem;
  text-align: center;
}

.editorial-break__inner {
  max-width: 600px;
  margin: 0 auto;
}

.editorial-break__big {
  font-family: var(--serif);
  font-size: clamp(6rem, 14vw, 12rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--text);
  display: block;
  margin-bottom: 1rem;
}

.editorial-break__pct {
  font-size: 0.4em;
  vertical-align: super;
  color: var(--accent);
}

.editorial-break p {
  font-size: 1.05rem;
  color: var(--text-soft);
  line-height: 1.7;
}

.editorial-break em {
  font-family: var(--serif);
  color: var(--text-muted);
}

/* ===== ÉQUIPE ===== */
.equipe {
  padding: 6rem 3rem 8rem;
  max-width: 1400px;
  margin: 0 auto;
}

.equipe__header {
  max-width: 560px;
  margin-bottom: 4rem;
}

.equipe__sub {
  font-size: 0.95rem;
  color: var(--text-soft);
  margin-top: 1.5rem;
  line-height: 1.7;
}

.equipe__strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.person {
  background: var(--bg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  transition: background 0.3s;
}
.person:hover { background: var(--bg-white); }

.person__initial {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--accent, #c45d3e);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.person__info strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.person__info span {
  display: block;
  font-size: 0.72rem;
  font-family: var(--mono);
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.person__info p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ===== PAROLES ===== */
.paroles {
  padding: 6rem 3rem 8rem;
  background: var(--bg-warm);
  border-top: 1px solid var(--border);
}

.paroles__header {
  max-width: 1400px;
  margin: 0 auto 3rem;
}

.paroles__grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.parole {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  transition: transform 0.3s var(--ease);
}
.parole:hover { transform: translateY(-3px); }

.parole--highlight {
  background: var(--text);
  color: var(--bg);
  border-color: transparent;
}
.parole--highlight footer span { color: var(--text-muted); }

.parole p {
  font-family: var(--serif);
  font-size: 1.15rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.parole em { font-style: italic; }

.parole footer strong {
  display: block;
  font-family: var(--sans);
  font-size: 0.85rem;
}

.parole footer span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===== CONTACT ===== */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  padding: 8rem 3rem;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.contact__left p {
  font-size: 0.92rem;
  color: var(--text-soft);
  line-height: 1.75;
  margin-top: 1.5rem;
  max-width: 400px;
}

.contact__infos {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact__infos a {
  font-weight: 500;
  border-bottom: 1px solid var(--border);
  display: inline-block;
  padding-bottom: 1px;
  transition: border-color 0.2s, color 0.2s;
}
.contact__infos a:hover { color: var(--accent); border-color: var(--accent); }

.contact__infos span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact__form input,
.contact__form select,
.contact__form textarea {
  width: 100%;
  padding: 0.85rem 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.2s;
  border-radius: 0;
}

.contact__form input:focus,
.contact__form select:focus,
.contact__form textarea:focus {
  border-color: var(--accent);
}

.contact__form input::placeholder,
.contact__form textarea::placeholder {
  color: var(--text-muted);
}

.contact__form select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' fill='%23999'%3E%3Cpath d='M5 7L1 3h8z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
  cursor: pointer;
  color: var(--text-muted);
}

.contact__form textarea { resize: vertical; min-height: 80px; }

.btn-submit {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 0.5rem;
  padding: 0.75rem 1.8rem;
  background: var(--text);
  color: var(--bg);
  border: none;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.3s, gap 0.3s;
}
.btn-submit:hover { background: var(--accent); gap: 0.8rem; }

/* ===== FOOTER ===== */
.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 3rem;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.footer__left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer__right {
  display: flex;
  gap: 1.5rem;
}

.footer__right a {
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer__right a:hover { color: var(--text); }

/* ===== REVEAL ===== */
.reveal-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; }
  .hero__right { display: none; }
  .approche__cols { grid-template-columns: 1fr; gap: 2.5rem; }
  .equipe__strip { grid-template-columns: repeat(2, 1fr); }
  .paroles__grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .topnav { padding: 1rem 1.5rem; }
  .topnav__links { display: none; }
  .topnav__burger { display: flex; }
  .topnav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    background: var(--bg);
    justify-content: center;
    align-items: center;
    gap: 2rem;
    z-index: 99;
  }
  .topnav__links.open a {
    font-family: var(--serif);
    font-size: 1.6rem;
    color: var(--text);
  }

  .hero { padding: 7rem 1.5rem 3rem; min-height: auto; }
  .hero__title { font-size: 2.5rem; }
  .hero__bottom { flex-direction: column; align-items: flex-start; }
  .hero__aside { text-align: left; }

  .clients-strip { padding: 1.5rem; gap: 1.5rem; }

  .approche, .offres, .paroles, .equipe, .editorial-break { padding-left: 1.5rem; padding-right: 1.5rem; }

  .offre__name { font-size: 1.2rem; }

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

  .contact {
    grid-template-columns: 1fr;
    padding: 4rem 1.5rem;
    gap: 3rem;
  }

  .footer {
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
    text-align: center;
  }
  .footer__right { flex-wrap: wrap; justify-content: center; }
}