/* ============================================
   PMCHS — Styles spécifiques : index
   ============================================ */

:root {
    --navy: #0d1b2e;
    --navy-mid: #1a3a5c;
    --navy-light: #2e5f8a;
    --accent: #4a9eca;
    --accent-soft: #7dbfe0;
    --gold: #c8a96e;
    --white: #f8fafc;
    --text: #e8edf4;
    --text-muted: #8faabf;
    --card-bg: rgba(26, 58, 92, 0.4);
    --border: rgba(74, 158, 202, 0.2);
  }

/* LANG TOGGLE */

  /* NAV */

  /* HERO */
  .hero {
    text-align: center;
    padding: 100px 24px 70px;
    position: relative;
    overflow: hidden;
  }

.hero::before {
    content: '';
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 700px;
    background: radial-gradient(ellipse, rgba(74, 158, 202, 0.08) 0%, transparent 70%);
    pointer-events: none;
  }

.hero-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid rgba(74, 158, 202, 0.3);
    padding: 5px 16px;
    border-radius: 20px;
    margin-bottom: 28px;
  }

.hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(28px, 5vw, 50px);
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 12px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
  }

.hero h1 .acronym { color: var(--accent); }

.hero-full-name {
    font-family: 'Source Sans 3', sans-serif;
    font-size: clamp(14px, 2vw, 18px);
    font-weight: 300;
    color: var(--gold);
    letter-spacing: 1px;
    margin-bottom: 28px;
  }

.hero-sub {
    font-size: 17px;
    color: var(--text-muted);
    max-width: 620px;
    margin: 0 auto 48px;
    font-weight: 300;
    line-height: 1.8;
  }

/* DIVIDER */
  .divider {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    margin: 40px auto;
  }

/* CONTAINER */
  .container {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 24px 80px;
  }

/* SECTION TITLE */
  .section-title {
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    color: var(--white);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
  }

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
  }

/* CONCEPT BOX */
  .concept-box {
    background: linear-gradient(135deg, rgba(26, 58, 92, 0.8), rgba(13, 27, 46, 0.9));
    border: 1px solid rgba(200, 169, 110, 0.3);
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 48px;
    position: relative;
    overflow: hidden;
  }

.concept-box::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 240px; height: 240px;
    background: radial-gradient(ellipse, rgba(200, 169, 110, 0.06), transparent 70%);
    pointer-events: none;
  }

.concept-box::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 180px; height: 180px;
    background: radial-gradient(ellipse, rgba(74, 158, 202, 0.05), transparent 70%);
    pointer-events: none;
  }

.concept-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 20px;
    display: block;
  }

.concept-box h3 {
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    color: var(--white);
    margin-bottom: 18px;
  }

.concept-box p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 14px;
  }

.concept-box p:last-child { margin-bottom: 0; }

.concept-box p strong { color: var(--gold); }

.concept-box p em { color: var(--accent-soft); font-style: normal; }

/* PILLARS GRID */
  .pillars-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 48px;
    max-width: 660px;
    margin-left: auto;
    margin-right: auto;
  }

.pillar-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-top: 3px solid var(--accent);
    border-radius: 0 0 12px 12px;
    padding: 24px 20px;
    backdrop-filter: blur(4px);
    transition: border-color 0.2s, transform 0.2s;
  }

.pillar-card:hover {
    border-color: var(--accent-soft);
    transform: translateY(-2px);
  }

.pillar-icon {
    font-size: 26px;
    margin-bottom: 12px;
    display: block;
  }

.pillar-card h4 {
    font-family: 'Playfair Display', serif;
    font-size: 15px;
    color: var(--white);
    margin-bottom: 8px;
    line-height: 1.3;
  }

.pillar-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
  }

/* HIG BOX */
  .hig-box {
    background: linear-gradient(135deg, rgba(120, 60, 90, 0.25), rgba(13, 27, 46, 0.95));
    border: 1px solid rgba(180, 100, 130, 0.4);
    border-radius: 16px;
    padding: 36px;
    margin-bottom: 48px;
    position: relative;
    overflow: hidden;
  }

.hig-box::before {
    content: '';
    position: absolute;
    bottom: 0; right: 0;
    width: 220px; height: 220px;
    background: radial-gradient(ellipse, rgba(180, 100, 130, 0.07), transparent 70%);
    pointer-events: none;
  }

.hig-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #c47a9a;
    margin-bottom: 12px;
    display: block;
  }

.hig-box h3 {
    font-family: 'Playfair Display', serif;
    font-size: 20px;
    color: var(--white);
    margin-bottom: 16px;
    line-height: 1.3;
  }

.hig-box p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 14px;
  }

.hig-box p:last-of-type { margin-bottom: 20px; }

.hig-signals {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 10px;
    margin: 20px 0;
  }

.hig-signal {
    background: rgba(180, 100, 130, 0.1);
    border: 1px solid rgba(180, 100, 130, 0.25);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.4;
  }

.hig-signal strong {
    display: block;
    color: #c47a9a;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 2px;
  }

.hig-note {
    font-size: 12px;
    color: rgba(180, 100, 130, 0.7);
    font-style: italic;
    margin-top: 16px;
  }

/* NAV CARDS */
  .nav-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 48px;
  }

.nav-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px 20px;
    text-decoration: none;
    transition: border-color 0.2s, transform 0.2s;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

.nav-card:hover {
    border-color: rgba(74, 158, 202, 0.5);
    transform: translateY(-2px);
  }

.nav-card-icon { font-size: 24px; }

.nav-card h4 {
    font-family: 'Playfair Display', serif;
    font-size: 15px;
    color: var(--white);
    line-height: 1.3;
  }

.nav-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
    flex: 1;
  }

.nav-card-arrow {
    font-size: 13px;
    color: var(--accent);
    font-weight: 600;
    margin-top: 4px;
  }

/* FOOTER */
  .footer {
    text-align: center;
    padding: 40px 24px 60px;
    border-top: 1px solid var(--border);
  }

.footer p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 8px;
  }

.footer a { color: var(--accent); text-decoration: none; }

.footer a:hover { text-decoration: underline; }

.signature {
    font-family: 'Playfair Display', serif;
    font-size: 18px;
    color: var(--accent);
    font-style: italic;
  }

/* LANGUAGE SECTIONS */
  .lang-fr, .lang-en { display: block; }

/* RESPONSIVE */
  @media (max-width: 600px) {
    .hero { padding: 80px 24px 50px; }
    .pillars-grid { grid-template-columns: repeat(1, 1fr); max-width: 100%; }
  }

/* TOPBAR */
  .topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 200;
    height: 56px;
    background: rgba(13, 27, 46, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(74, 158, 202, 0.15);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
  }

.topbar-left {
    display: flex;
    align-items: center;
    gap: 24px;
  }

.nav-logo {
    font-family: 'Playfair Display', serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    text-decoration: none;
    flex-shrink: 0;
  }

.nav-links {
    display: flex;
    gap: 16px;
  }

.topbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
  }

.lang-toggle {
    display: flex;
    gap: 6px;
  }

.lang-btn {
    padding: 5px 12px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    border-radius: 20px;
    cursor: pointer;
    font-size: 12px;
    font-family: 'Source Sans 3', sans-serif;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: all 0.2s;
  }

.lang-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
  }

.lang-btn:hover:not(.active) {
    border-color: var(--accent-soft);
    color: var(--accent-soft);
  }

/* HAMBURGER */
  .hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    background: none;
    border: none;
  }

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-muted);
    border-radius: 2px;
    transition: all 0.3s;
  }

/* MOBILE MENU */
  .mobile-menu {
    display: none;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    z-index: 199;
    background: rgba(13, 27, 46, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    flex-direction: column;
    gap: 4px;
  }

/* PAGE TOP PADDING */
  .hero { padding-top: 116px !important; }

body > .container:first-of-type { padding-top: 72px; }

@media (max-width: 700px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }
  }