/* ============================================================
   platypus-common.css — Styles partagés Platypus Coaching
   Variables, reset, nav, footer, animations, utilitaires
   ============================================================ */

/* ── Variables ───────────────────────────────────────────────── */
:root {
  --cream:             #F7F2EA;
  --beige:             #EDE4D4;
  --sand:              #D9CCBA;
  --terracotta:        #C4714A;
  --terracotta-light:  #D4855E;
  --sage:              #7A9B7F;
  --sage-light:        #A8C4AC;
  --sage-dark:         #5A7A5F;
  --brown:             #4A3728;
  --brown-mid:         #6B4F3A;
  --text:              #2E2318;
  --text-muted:        #7A6A58;
  --white:             #FEFCF8;
  --dark:              #1A120A;
  --lab-accent:        #3D6B5C;
}

/* ── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

/* ARTICLE LISTS */
.article-content ul { list-style: disc; padding-left: 1.5rem; margin-bottom: 1.2rem; }
.article-content ol { list-style: decimal; padding-left: 1.5rem; margin-bottom: 1.2rem; }
.article-content li { color: var(--text-muted); font-weight: 300; margin-bottom: 0.5rem; font-size: 1.02rem; line-height: 1.75; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--cream);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

/* ── Grain overlay ───────────────────────────────────────────── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 9999; opacity: 0.4;
}

/* ── Typographie ─────────────────────────────────────────────── */
h1, h2, h3, h4 { font-family: 'Cormorant Garamond', serif; font-weight: 300; line-height: 1.2; }
em { font-style: italic; color: var(--terracotta); }
a { color: inherit; text-decoration: none; }

/* ── Navigation ──────────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1.2rem 2.5rem;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(247, 242, 234, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(196, 113, 74, 0.12);
  transition: box-shadow 0.3s;
}

.nav-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.25rem; font-weight: 400;
  letter-spacing: 0.05em; color: var(--brown);
  display: flex; align-items: flex-start;
}
.nav-logo span { color: var(--terracotta); }

.nav-links {
  display: flex; gap: 2.2rem; list-style: none;
  font-size: 0.85rem; font-weight: 400;
  letter-spacing: 0.08em; text-transform: uppercase;
}
.nav-links a { color: var(--brown-mid); transition: color 0.2s; }
.nav-links a:hover,
.nav-links a.active { color: var(--terracotta); }

.nav-cta {
  background: var(--terracotta);
  color: var(--white) !important;
  padding: 0.55rem 1.3rem;
  border-radius: 2px;
  font-weight: 500 !important;
  transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--terracotta-light) !important; }

.nav-burger { display: none; background: none; border: none; cursor: pointer; }

/* ── Nav dark (page theorie) ─────────────────────────────────── */
nav.dark {
  background: rgba(26, 18, 10, 0.85);
  border-bottom-color: rgba(196, 113, 74, 0.15);
}
nav.dark .nav-logo { color: var(--cream); }
nav.dark .nav-links a { color: rgba(247, 242, 234, 0.6); }
nav.dark .nav-links a:hover { color: var(--cream); }
nav.dark .nav-burger span { background: var(--cream); }

/* ── Utilitaires ─────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; }

.section-label {
  font-size: 0.75rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--terracotta);
  margin-bottom: 1rem; display: block;
}

.btn-primary {
  background: var(--terracotta); color: var(--white);
  padding: 0.85rem 1.8rem; border-radius: 2px;
  font-weight: 500; font-size: 0.9rem;
  transition: background 0.2s, transform 0.2s;
  display: inline-block; cursor: pointer;
  border: none; font-family: 'DM Sans', sans-serif;
}
.btn-primary:hover { background: var(--terracotta-light); transform: translateY(-1px); }

.btn-outline {
  border: 1.5px solid var(--terracotta); color: var(--terracotta);
  padding: 0.75rem 1.6rem; border-radius: 2px;
  font-weight: 500; font-size: 0.9rem;
  transition: all 0.2s; display: inline-block;
}
.btn-outline:hover { background: var(--terracotta); color: var(--white); }

.btn-ghost {
  color: var(--brown-mid); font-size: 0.9rem;
  border-bottom: 1px solid var(--sand); padding-bottom: 2px;
  transition: border-color 0.2s, color 0.2s;
}
.btn-ghost:hover { color: var(--terracotta); border-color: var(--terracotta); }

/* ── Footer ──────────────────────────────────────────────────── */
footer {
  background: var(--brown);
  color: rgba(247, 242, 234, 0.6);
  padding: 3rem 2.5rem;
}

.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem;
}

.footer-brand .nav-logo { color: var(--cream); font-size: 1.4rem; margin-bottom: 0.8rem; display: block; }
.footer-brand p { font-size: 0.85rem; line-height: 1.6; }

.footer-col h4 {
  color: var(--cream); font-family: 'DM Sans', sans-serif;
  font-weight: 500; font-size: 0.85rem;
  text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 1rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a { font-size: 0.85rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--terracotta-light); }

.footer-bottom {
  max-width: 1200px; margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.78rem;
}

.social-links { display: flex; gap: 1rem; }
.social-links a { transition: color 0.2s; }
.social-links a:hover { color: var(--terracotta-light); }

/* ── Animations ──────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.reveal-left {
  opacity: 0; transform: translateX(-24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

/* ── Mobile burger ───────────────────────────────────────────── */
@media (max-width: 900px) {
  nav { padding: 1rem 1.5rem; }

  .nav-links { display: none; }

  .nav-links.open {
    display: flex; flex-direction: column;
    position: fixed; inset: 0; top: 62px;
    background: var(--cream);
    padding: 1.2rem 2rem;
    gap: 0; font-size: 0.95rem; z-index: 99;
    overflow-y: auto;
    justify-content: center;
  }
  nav.dark .nav-links.open { background: var(--dark); }

  .nav-links.open li { border-bottom: 1px solid var(--sand); }
  .nav-links.open li:last-child { border-bottom: none; margin-top: 0.8rem; }
  .nav-links.open a { display: block; padding: 0.75rem 0; color: var(--brown-mid); }
  nav.dark .nav-links.open a { color: rgba(247,242,234,0.7); }
  .nav-links.open a:hover,
  .nav-links.open a.active { color: var(--terracotta); }

  .nav-links.open .nav-cta {
    display: block; text-align: center;
    background: var(--terracotta); color: var(--white) !important;
    padding: 0.75rem 1.5rem; border-radius: 2px; font-weight: 500;
  }

  .nav-burger {
    display: flex; flex-direction: column; justify-content: center;
    gap: 5px; padding: 6px; width: 36px; height: 36px;
  }
  .nav-burger span {
    width: 22px; height: 2px; background: var(--brown);
    border-radius: 2px; transition: all 0.3s; display: block;
    transform-origin: center;
  }
  .nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

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


/* ARTICLE TAGS */
.article-tags-list { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.article-tag-item {
  background: var(--beige); color: var(--brown-mid);
  font-size: 0.78rem; padding: 0.3rem 0.8rem; border-radius: 999px;
  transition: background 0.2s;
}
.article-tag-item:hover { background: var(--sand); }

/* RELATED CARDS */
.related-section { padding: 4rem 2.5rem; background: var(--cream); }
.related-header { max-width: 1200px; margin: 0 auto 2.5rem; }
.related-header .section-label { color: var(--terracotta); font-size: 0.72rem; letter-spacing: 0.15em; text-transform: uppercase; display: block; margin-bottom: 0.5rem; }
.related-header h2 { color: var(--brown); font-size: clamp(1.4rem, 2.5vw, 2rem); }
.related-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.related-card {
  background: var(--white); border: 1px solid var(--sand); border-radius: 6px;
  overflow: hidden; cursor: pointer; transition: transform 0.25s, box-shadow 0.25s;
}
.related-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(74,55,40,0.1); }
.related-thumb {
  height: 160px; display: flex; align-items: center; justify-content: center;
  font-size: 3rem; background: var(--beige);
}
.related-body { padding: 1.2rem 1.4rem; }
.related-cat { font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--terracotta); margin-bottom: 0.4rem; font-weight: 500; }
.related-body h3 { font-size: 1.1rem; color: var(--brown); line-height: 1.35; font-family: 'Cormorant Garamond', serif; font-weight: 400; margin-bottom: 0.5rem; }
.related-read { font-size: 0.78rem; color: var(--text-muted); }
@media (max-width: 768px) { .related-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .related-grid { grid-template-columns: 1fr; } }

/* BREADCRUMB */
.breadcrumb { padding: 1rem 2.5rem; }
.breadcrumb-inner { display: flex; align-items: center; gap: 0.6rem; font-size: 0.8rem; color: var(--text-muted); }
.breadcrumb a { color: var(--text-muted); transition: color 0.2s; border-bottom: 1px solid transparent; }
.breadcrumb a:hover { color: var(--terracotta); border-color: var(--terracotta); }
.breadcrumb-sep { opacity: 0.4; }

/* ARTICLE HERO */
.article-hero-bg { margin-top: 0; }

/* ARTICLE HERO CONTENT + LAYOUT */
.article-hero-bg-content { position: relative; z-index: 2; max-width: 1200px; margin: 0 auto; padding: 2rem 2.5rem 1.5rem; width: 100%; }
.article-layout { max-width: 1200px; margin: 0 auto; padding: 1.5rem 2.5rem 5rem; display: grid; grid-template-columns: 1fr 340px; gap: 5rem; align-items: start; }
@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; gap: 2.5rem; padding: 1.5rem 1.5rem 4rem; }
}