/* ============================================================
   OZIA COMMUNICATION — système de design
   Palette : navy premium / blanc / gris-bleu clair / or discret
   Typo : Playfair Display (display) / Manrope (texte + repères)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,500;0,600;0,700;1,500&family=Manrope:wght@400;500;600;700;800&display=swap');

:root{
  --ink: #12203a;
  --paper: #f5f7fb;
  --card: #ffffff;
  --deep: #0f2440;
  --deep-2: #0a1a2e;
  --signal: #0f2440;
  --signal-ink: #17335a;
  --gold: #ab8a56;
  --mist: #e3e7f0;
  --muted: #5c6b84;
  --shadow: 0 10px 30px -12px rgba(15,36,64,0.18);
  --shadow-sm: 0 4px 16px -6px rgba(15,36,64,0.14);

  --font-display: 'Playfair Display', serif;
  --font-body: 'Manrope', sans-serif;
  --font-mono: 'Manrope', sans-serif;

  --container: 1120px;
  --radius: 10px;
}

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

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--card);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a{ color: inherit; }

.wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- typographic helpers ---------- */

.eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
}
.eyebrow::before{
  content: "";
  width: 22px;
  height: 2px;
  background: var(--gold);
  display: inline-block;
}

h1, h2, h3{
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}
h1{ font-size: clamp(30px, 3.4vw, 44px); }
h2{ font-size: clamp(26px, 3vw, 36px); }
h3{ font-size: 20px; font-weight: 600; }

p{ margin: 0 0 16px; color: var(--ink); }
.lede{ font-size: 18px; color: var(--muted); max-width: 58ch; }

.mono{ font-family: var(--font-mono); }

/* ---------- buttons & links ---------- */

.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 13.5px;
  letter-spacing: 0.02em;
  text-decoration: none;
  padding: 15px 26px;
  border: 1px solid var(--signal);
  border-radius: var(--radius);
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  white-space: nowrap;
}
.btn-primary{ background: var(--signal); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover{ background: var(--signal-ink); border-color: var(--signal-ink); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-ghost{ background: transparent; color: var(--ink); border-color: var(--mist); }
.btn-ghost:hover{ border-color: var(--signal); transform: translateY(-2px); }

.email-link{
  font-family: var(--font-mono);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid var(--mist);
  padding-bottom: 2px;
  color: var(--ink);
  transition: border-color 0.15s ease;
}
.email-link:hover{ border-color: var(--signal); }

.cta-row{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 22px;
}

/* ---------- header ---------- */

.site-header{
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 var(--mist);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-header .wrap{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.wordmark{
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: var(--ink);
}
.wordmark span{ color: var(--signal); }

.nav{
  display: flex;
  align-items: center;
  gap: 30px;
}
.nav a{
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13.5px;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: var(--muted);
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
}
.nav a:hover, .nav a.active{ color: var(--ink); border-color: var(--gold); }
.nav .btn-primary{ color: #fff; }
.nav .btn{ padding: 10px 18px; font-size: 13px; }

.nav-toggle{ display: none; }

/* ---------- hero ---------- */

.hero{
  padding: 44px 0 34px;
}
.hero-grid{
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 48px;
  align-items: center;
}
.hero-photo-col{ text-align: center; }
.hero-photo{
  width: 196px;
  height: 196px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: var(--deep);
  overflow: hidden;
  box-shadow: var(--shadow), 0 0 0 6px #fff, 0 0 0 7px var(--mist);
}
.hero-photo img{ width: 100%; height: 100%; object-fit: cover; }
.hero-caption{
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.hero-caption strong{ color: var(--ink); display: block; font-size: 14px; margin-bottom: 3px; font-family: var(--font-display); font-weight: 600; }

/* ---------- client marquee ---------- */

.clients{
  padding: 30px 0;
  background: var(--paper);
  overflow: hidden;
}
.clients .wrap{ margin-bottom: 16px; }
.marquee{
  width: 100%;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track{
  display: flex;
  align-items: center;
  width: max-content;
  gap: 64px;
  animation: marquee 32s linear infinite;
}
.marquee:hover .marquee-track{ animation-play-state: paused; }
.marquee-track img{
  height: 30px;
  width: auto;
  flex: none;
  opacity: 0.92;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.marquee-track img:hover{ opacity: 1; transform: scale(1.05); }
@keyframes marquee{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce){
  .marquee-track{ animation: none; }
}

/* ---------- stats ---------- */

.stats-section{
  padding: 46px 0;
}
.stats{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.stat{ border-left: 3px solid var(--gold); padding-left: 18px; }
.stat .num{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 32px;
  display: block;
  margin-bottom: 4px;
  color: var(--deep);
}
.stat .label{
  font-size: 13.5px;
  color: var(--muted);
}
.stat .stars{
  display: block;
  color: var(--gold);
  font-size: 14px;
  letter-spacing: 3px;
  margin: 2px 0 6px;
}

/* ---------- capability list ---------- */

.capabilities{ padding: 60px 0; background: var(--paper); }
.cap-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 30px;
}
.cap-item{
  padding: 24px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.cap-item:hover{ transform: translateY(-3px); box-shadow: var(--shadow); }
.cap-item h3{ margin-bottom: 8px; font-family: var(--font-display); }
.cap-item p{ color: var(--muted); font-size: 15px; margin: 0; }

/* ---------- sector band ---------- */

.sector-band{
  padding: 26px 0;
  background: var(--deep);
  color: var(--paper);
}
.sector-band .wrap{
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
}
.sector-band .tag{ opacity: 0.5; }

/* ---------- closing CTA band ---------- */

.cta-band{
  padding: 76px 0;
  background: var(--deep-2);
  color: #fff;
  text-align: center;
}
.cta-band h2{ color: #fff; max-width: 34ch; margin: 0 auto 18px; }
.cta-band .cta-row{ justify-content: center; }
.cta-band .email-link{ color: #fff; border-color: rgba(255,255,255,0.3); }
.cta-band .btn-primary{ background: var(--gold); border-color: var(--gold); color: #1a1506; }
.cta-band .btn-primary:hover{ background: #c4a06a; border-color: #c4a06a; }

/* ---------- offres page ---------- */

.page-head{ padding: 64px 0 46px; }
.page-head .lede{ margin-top: 6px; }

.offer-list{ padding: 10px 0 60px; }
.offer{
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 34px;
  padding: 30px 24px;
  border-radius: var(--radius);
  transition: background 0.2s ease;
}
.offer:hover{ background: var(--paper); }
.offer:first-child{ padding-top: 30px; }
.offer .tag{
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 600;
  font-size: 20px;
  color: var(--gold);
}
.offer h3{ margin: 8px 0 0; }
.offer p{ color: var(--muted); margin: 10px 0 0; max-width: 60ch; }

/* ---------- references / timeline ---------- */

.timeline{ padding: 10px 0 20px; }
.tl-item{
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 26px;
  padding: 24px;
  margin: 0 -24px;
  border-radius: var(--radius);
  transition: background 0.2s ease;
}
.tl-item + .tl-item{ border-top: 1px solid var(--mist); }
.tl-item:hover{ background: var(--paper); }
.tl-item .date{
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.03em;
  padding-top: 3px;
}
.tl-item .role{ font-family: var(--font-display); font-size: 18px; margin-bottom: 4px; }
.tl-item .client{ font-family: var(--font-body); font-weight: 700; font-size: 12px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--gold); margin-bottom: 8px; display:block; }
.tl-item p{ color: var(--muted); font-size: 14.5px; margin: 0; max-width: 62ch; }

.legacy-note{
  padding: 26px 0 56px;
  color: var(--muted);
  font-size: 14.5px;
}
.legacy-note strong{ color: var(--ink); }

/* ---------- contact page ---------- */

.contact-grid{
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  padding: 10px 0 70px;
}
.contact-info .big-email{
  font-family: var(--font-mono);
  font-size: 22px;
  display: inline-block;
  margin: 6px 0 26px;
  border-bottom: 1px solid var(--mist);
  padding-bottom: 4px;
  text-decoration: none;
  color: var(--ink);
}
.contact-info .big-email:hover{ border-color: var(--gold); }
.contact-links{ margin-top: 28px; display: flex; flex-direction: column; gap: 10px; }
.contact-card{
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 22px;
}

/* ---------- footer ---------- */

.site-footer{
  background: var(--deep-2);
  color: var(--paper);
  padding: 52px 0 26px;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
}
.footer-grid .wordmark{ color: #fff; }
.footer-grid .wordmark span{ color: var(--gold); }
.footer-tag{ color: rgba(255,255,255,0.6); font-size: 14px; margin-top: 10px; max-width: 32ch; }
.footer-col h4{
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin: 0 0 14px;
}
.footer-col a{
  display: block;
  text-decoration: none;
  color: #fff;
  font-size: 14.5px;
  margin-bottom: 10px;
}
.footer-col a:hover{ color: var(--gold); }
.legal{
  padding-top: 22px;
  font-family: var(--font-body);
  font-size: 11.5px;
  color: rgba(255,255,255,0.4);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

/* ---------- responsive ---------- */

@media (max-width: 860px){
  .nav{ position: fixed; top: 64px; left: 0; right: 0; bottom: 0; height: calc(100vh - 64px); background: var(--paper); flex-direction: column; align-items: flex-start; padding: 30px 32px; gap: 22px; transform: translateX(100%); transition: transform 0.2s ease; overflow-y: auto; }
  .nav.open{ transform: translateX(0); }
  .nav-toggle{
    display: inline-flex;
    background: none; border: none; cursor: pointer;
    font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--ink); gap: 8px; align-items: center;
  }
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-photo-col{ order: -1; }
  .hero-photo{ width: 150px; height: 150px; }
  .stats{ grid-template-columns: 1fr; }
  .cap-grid{ grid-template-columns: 1fr; }
  .offer, .tl-item{ grid-template-columns: 1fr; gap: 10px; }
  .contact-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; gap: 26px; }
  .wrap{ padding: 0 20px; }
}

/* ---------- scroll reveal (discret) ---------- */

.reveal{
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity: 1; transform: none; transition: none; }
}

.cap-grid .reveal:nth-child(2){ transition-delay: 0.08s; }
.cap-grid .reveal:nth-child(3){ transition-delay: 0.16s; }
.cap-grid .reveal:nth-child(4){ transition-delay: 0.24s; }
.stats .reveal:nth-child(2){ transition-delay: 0.08s; }
.stats .reveal:nth-child(3){ transition-delay: 0.16s; }
.offer-list .reveal:nth-child(2){ transition-delay: 0.06s; }
.offer-list .reveal:nth-child(3){ transition-delay: 0.12s; }
.offer-list .reveal:nth-child(4){ transition-delay: 0.18s; }
.offer-list .reveal:nth-child(5){ transition-delay: 0.24s; }