/* ============================================================
   IKIGAÏ AGENCY — feuille de style globale
   Pure CSS, aucun JS requis. Animations CSS, responsive.
   ============================================================ */

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

:root {
  --c-bg: #1a2942;
  --c-bg-alt: #142036;
  --c-bg-soft: #1f2f4d;
  --c-fg: #f5f5f0;
  --c-fg-soft: #c9c9d4;
  --c-fg-mute: #8893a8;
  --c-gold: #d4af6f;
  --c-gold-dim: #b89456;
  --c-line: #2a3a55;
  --c-accent: #8fb8a8;
  --serif: Georgia, 'Times New Roman', 'Source Serif Pro', serif;
  --mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  --w-max: 1180px;
  --r: 6px;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--serif);
  background: var(--c-bg);
  color: var(--c-fg);
  line-height: 1.6;
  font-size: clamp(15px, 1.05vw, 17px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--c-gold); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--c-fg); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
::selection { background: var(--c-gold); color: var(--c-bg); }
::-moz-selection { background: var(--c-gold); color: var(--c-bg); }

main { flex: 1; }
.container { max-width: var(--w-max); margin: 0 auto; padding: 0 clamp(1.2rem, 4vw, 2.5rem); }

/* ============== HEADER NAV ============== */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(20, 32, 54, 0.92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--c-line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1.5rem;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  color: var(--c-gold);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  letter-spacing: 2.5px;
  font-weight: 400;
}
.brand a { color: inherit; }
.brand a:hover { text-decoration: none; color: var(--c-fg); }
.brand .calligraphy { color: var(--c-fg-soft); font-size: .8em; letter-spacing: 1px; opacity: .8; }
.nav-links { display: flex; gap: clamp(1rem, 2.2vw, 2rem); list-style: none; flex-wrap: wrap; }
.nav-links a {
  color: var(--c-fg-soft);
  font-size: .92rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: var(--serif);
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
}
.nav-links a:hover { color: var(--c-gold); text-decoration: none; }
.nav-links a.active { color: var(--c-gold); border-bottom-color: var(--c-gold); }
@media (max-width: 760px) {
  .nav { flex-direction: column; gap: .8rem; }
  .nav-links { gap: .9rem 1.4rem; justify-content: center; }
}

/* ============== HERO ============== */
.hero {
  min-height: clamp(560px, 86vh, 820px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: clamp(3rem, 8vh, 6rem) 0;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 30%, rgba(212, 175, 111, 0.10), transparent 60%),
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(143, 184, 168, 0.05), transparent 70%);
  pointer-events: none;
}
.hero h1 {
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  letter-spacing: 4px;
  color: var(--c-gold);
  font-weight: 400;
  margin-bottom: 1rem;
  animation: fadeInUp .9s ease both;
}
.hero .calligraphy {
  color: var(--c-fg-soft);
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  letter-spacing: 2px;
  margin-bottom: 1.6rem;
  animation: fadeInUp 1.1s .15s ease both;
}
.hero .tagline {
  font-style: italic;
  font-size: clamp(1.05rem, 2vw, 1.5rem);
  max-width: 720px;
  margin: 0 auto 1rem;
  animation: fadeInUp 1.2s .3s ease both;
}
.hero .pillars {
  color: var(--c-fg-soft);
  font-size: clamp(.7rem, 1.2vw, .88rem);
  letter-spacing: 4px;
  margin-bottom: 2.5rem;
  line-height: 2.2;
  animation: fadeInUp 1.3s .45s ease both;
}
.cta-row {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  animation: fadeInUp 1.4s .6s ease both;
}
.btn {
  display: inline-block;
  padding: .85rem 2rem;
  border: 1px solid var(--c-gold);
  color: var(--c-gold);
  letter-spacing: 2px;
  font-size: .85rem;
  text-transform: uppercase;
  transition: background .25s ease, color .25s ease, transform .15s ease;
  cursor: pointer;
}
.btn:hover {
  background: var(--c-gold);
  color: var(--c-bg);
  text-decoration: none;
  transform: translateY(-1px);
}
.btn-primary { background: var(--c-gold); color: var(--c-bg); }
.btn-primary:hover { background: transparent; color: var(--c-gold); }

/* ============== PAGE HEADER (interior pages) ============== */
.page-head {
  padding: clamp(3rem, 7vh, 5rem) 0 clamp(2rem, 5vh, 3rem);
  text-align: center;
  position: relative;
  border-bottom: 1px solid var(--c-line);
}
.page-head::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 50% 60% at 50% 0%, rgba(212, 175, 111, 0.06), transparent 70%);
  pointer-events: none;
}
.page-head .crumb {
  color: var(--c-fg-mute);
  font-size: .78rem;
  letter-spacing: 3px;
  margin-bottom: 1rem;
  font-family: var(--mono);
}
.page-head .crumb a { color: var(--c-gold-dim); }
.page-head h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing: 3px;
  color: var(--c-gold);
  font-weight: 400;
  margin-bottom: 1rem;
}
.page-head .lede {
  color: var(--c-fg-soft);
  max-width: 720px;
  margin: 0 auto;
  font-size: clamp(1.02rem, 1.4vw, 1.15rem);
  font-style: italic;
}

/* ============== SECTIONS ============== */
section {
  padding: clamp(3rem, 8vh, 5.5rem) 0;
  position: relative;
}
section + section { border-top: 1px solid var(--c-line); }
.section-eyebrow {
  color: var(--c-gold);
  letter-spacing: 5px;
  font-size: .78rem;
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-family: var(--mono);
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: 2px;
  color: var(--c-fg);
  font-weight: 400;
  margin-bottom: 1.2rem;
  max-width: 820px;
}
.section-intro {
  color: var(--c-fg-soft);
  font-size: clamp(1.02rem, 1.4vw, 1.12rem);
  max-width: 760px;
  margin-bottom: 3rem;
}

/* ============== ABOUT (block 2-col) ============== */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}
@media (max-width: 820px) { .about-grid { grid-template-columns: 1fr; } }
.about-prose p { margin-bottom: 1.2rem; color: var(--c-fg-soft); }
.about-prose strong { color: var(--c-fg); font-weight: normal; border-bottom: 1px dotted var(--c-gold); }
.about-card {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  padding: 2rem;
}
.about-card h3 {
  font-size: 1.05rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 1.2rem;
  font-weight: 400;
}
.about-card ul { list-style: none; }
.about-card li {
  color: var(--c-fg-soft);
  font-size: .95rem;
  padding: .55rem 0;
  border-bottom: 1px solid var(--c-line);
}
.about-card li:last-child { border-bottom: none; }
.about-card li strong { color: var(--c-fg); display: inline-block; min-width: 130px; }

/* ============== PILLARS / EXPERTISE GRID ============== */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.4rem;
}
.pillar {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  padding: 2rem 1.8rem;
  transition: border-color .25s ease, transform .25s ease;
}
.pillar:hover { border-color: var(--c-gold-dim); transform: translateY(-2px); }
.pillar .num {
  color: var(--c-gold);
  font-family: var(--mono);
  font-size: .8rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
  display: block;
}
.pillar h3 {
  font-size: 1.4rem;
  color: var(--c-fg);
  margin-bottom: .9rem;
  font-weight: 400;
  letter-spacing: 1px;
}
.pillar h3 a { color: inherit; }
.pillar h3 a:hover { color: var(--c-gold); text-decoration: none; }
.pillar p { color: var(--c-fg-soft); font-size: .95rem; margin-bottom: 1rem; }
.pillar ul { list-style: none; padding-left: 0; }
.pillar li {
  color: var(--c-fg-soft);
  font-size: .88rem;
  padding-left: 1.1rem;
  position: relative;
  line-height: 1.8;
}
.pillar li::before {
  content: '·';
  color: var(--c-gold);
  position: absolute;
  left: 0;
  font-weight: bold;
  font-size: 1.4em;
  line-height: 1;
}

/* ============== REALISATIONS ============== */
.realisations-bg { background: var(--c-bg-alt); }
.real-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: 1.6rem;
}
.real-card {
  background: var(--c-bg-soft);
  border-left: 3px solid var(--c-gold);
  border-radius: 0 var(--r) var(--r) 0;
  padding: 1.8rem 1.6rem;
  transition: transform .25s ease;
}
.real-card:hover { transform: translateX(3px); }
.real-card .domain {
  font-family: var(--mono);
  color: var(--c-gold);
  font-size: .75rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: .8rem;
  display: block;
}
.real-card h3 {
  color: var(--c-fg);
  font-size: 1.15rem;
  margin-bottom: 1rem;
  font-weight: 400;
  letter-spacing: .5px;
}
.real-card ul { list-style: none; padding-left: 0; }
.real-card li {
  color: var(--c-fg-soft);
  font-size: .9rem;
  padding: .35rem 0 .35rem 1.2rem;
  position: relative;
  line-height: 1.55;
}
.real-card li::before {
  content: '→';
  color: var(--c-gold-dim);
  position: absolute;
  left: 0;
}
.real-card .metric {
  color: var(--c-gold);
  font-family: var(--mono);
  font-size: .9em;
  font-weight: bold;
}

/* ============== APPROACH ============== */
.approach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 1rem;
}
.step { padding: 1.5rem 0; }
.step .step-num {
  font-family: var(--mono);
  color: var(--c-gold);
  font-size: 2.2rem;
  line-height: 1;
  margin-bottom: 1rem;
  display: block;
  font-weight: bold;
}
.step h3 {
  color: var(--c-fg);
  font-size: 1.15rem;
  margin-bottom: .7rem;
  font-weight: 400;
  letter-spacing: 1px;
}
.step p { color: var(--c-fg-soft); font-size: .92rem; }

/* ============== DIFFERENTIATORS ============== */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.diff {
  padding: 1.5rem;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  background: linear-gradient(180deg, rgba(212, 175, 111, 0.04), transparent);
}
.diff-title { color: var(--c-gold); font-size: 1rem; letter-spacing: 2px; text-transform: uppercase; margin-bottom: .8rem; font-weight: 400; }
.diff p { color: var(--c-fg-soft); font-size: .92rem; }

/* ============== CONTACT ============== */
.contact-bg { background: var(--c-bg-alt); }
.contact-card {
  background: var(--c-bg);
  border: 1px solid var(--c-gold-dim);
  border-radius: var(--r);
  padding: clamp(2rem, 4vw, 3.5rem);
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.contact-card h2 {
  color: var(--c-gold);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: 2px;
  margin-bottom: 1rem;
  font-weight: 400;
}
.contact-card p {
  color: var(--c-fg-soft);
  margin-bottom: 1.8rem;
  font-size: 1.05rem;
}
.contact-mail {
  font-family: var(--mono);
  font-size: clamp(1rem, 1.8vw, 1.3rem);
  color: var(--c-gold);
  display: inline-block;
  padding: .7rem 1.5rem;
  border: 1px dashed var(--c-gold-dim);
  border-radius: var(--r);
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.contact-block {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  padding: 1.6rem;
  text-align: left;
}
.contact-block h3 {
  color: var(--c-gold);
  font-size: .9rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: .8rem;
  font-weight: 400;
}
.contact-block p { color: var(--c-fg-soft); font-size: .92rem; line-height: 1.7; }

/* ============== TEASERS HOME ============== */
.teaser-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.4rem;
  margin-top: 2rem;
}
.teaser {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  padding: 2rem 1.8rem;
  transition: border-color .25s ease, transform .25s ease;
  display: flex;
  flex-direction: column;
}
.teaser:hover { border-color: var(--c-gold-dim); transform: translateY(-2px); }
.teaser h3 { font-size: 1.3rem; color: var(--c-gold); margin-bottom: .8rem; font-weight: 400; letter-spacing: 1px; }
.teaser p { color: var(--c-fg-soft); font-size: .95rem; flex: 1; margin-bottom: 1.2rem; }
.teaser .more { color: var(--c-gold); font-size: .85rem; letter-spacing: 2px; text-transform: uppercase; }
.teaser .more::after { content: ' →'; }

/* ============== LEGAL / TYPO PROSE ============== */
.prose { max-width: 760px; margin: 0 auto; }
.prose h2 { font-size: 1.6rem; color: var(--c-gold); letter-spacing: 1.5px; margin: 2.5rem 0 1rem; font-weight: 400; }
.prose h3 { font-size: 1.2rem; color: var(--c-fg); margin: 1.8rem 0 .7rem; font-weight: 400; letter-spacing: 1px; }
.prose p { color: var(--c-fg-soft); margin-bottom: 1rem; }
.prose ul { color: var(--c-fg-soft); margin-bottom: 1rem; padding-left: 1.5rem; }
.prose li { margin-bottom: .4rem; }
.prose strong { color: var(--c-fg); }

/* ============== FOOTER ============== */
footer.site-footer {
  padding: 3.5rem 0 2rem;
  border-top: 1px solid var(--c-line);
  background: var(--c-bg-alt);
  color: var(--c-fg-mute);
  font-size: .85rem;
  letter-spacing: .5px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
.footer-col h4 {
  color: var(--c-gold);
  font-size: .85rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-weight: 400;
}
.footer-col ul { list-style: none; }
.footer-col li { padding: .25rem 0; }
.footer-col a { color: var(--c-fg-soft); }
.footer-col a:hover { color: var(--c-gold); text-decoration: none; }
.footer-brand { font-family: var(--serif); }
.footer-brand .name { color: var(--c-gold); font-size: 1.1rem; letter-spacing: 2.5px; margin-bottom: .8rem; display: block; }
.footer-brand p { color: var(--c-fg-soft); font-size: .9rem; line-height: 1.7; max-width: 320px; }
.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--c-line);
  color: var(--c-fg-mute);
  font-size: .78rem;
  letter-spacing: 1px;
}
.footer-bottom .cite { color: var(--c-gold); font-style: italic; margin-bottom: .5rem; display: block; }

/* ============== ERROR PAGE 404 ============== */
.error-page {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem 0;
}
.error-page .code {
  font-family: var(--mono);
  font-size: clamp(5rem, 14vw, 9rem);
  color: var(--c-gold);
  line-height: 1;
  font-weight: bold;
  margin-bottom: 1rem;
}
.error-page h2 { font-size: 1.6rem; letter-spacing: 2px; color: var(--c-fg); margin-bottom: 1rem; font-weight: 400; }
.error-page p { color: var(--c-fg-soft); margin-bottom: 2rem; max-width: 480px; }

/* ============== ANIMATIONS ============== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}