:root {
  --navy: #0D1F3C; --navy-mid: #1A3158; --accent: #1B3E7A;
  --white: #FFFFFF; --off: #F6F7F9; --gray: #6B7280;
  --border: #DDE2EA; --text: #111827;
  --display: 'DM Serif Display', Georgia, serif;
  --body: 'Inter', system-ui, sans-serif;
  --max: 1100px; --pad: clamp(1.5rem, 5vw, 3rem);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--body); color: var(--text); background: var(--white); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }

/* LANG BAR */
#lang-bar { background: var(--white); padding: 0; display: flex; justify-content: flex-end; align-items: center; gap: 0.75rem; border-bottom: 1px solid var(--border); padding: 0.35rem var(--pad); }
.lang-btn { font-family: var(--body); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray); background: none; border: none; border-bottom: 2px solid transparent; cursor: pointer; padding: 0.15rem 0.3rem; display: inline-flex; align-items: center; gap: 0.35rem; transition: color 0.2s, border-color 0.2s; }
.lang-btn svg { width: 18px; height: 12px; border-radius: 2px; flex-shrink: 0; opacity: 0.7; transition: opacity 0.2s; overflow: hidden; }
.lang-btn.active svg, .lang-btn:hover svg { opacity: 1; }
.lang-btn.active, .lang-btn:hover { color: var(--navy); border-bottom-color: var(--accent); }

/* NAV */
nav { position: sticky; top: 0; z-index: 100; background: var(--white); border-bottom: 1px solid var(--border); }
.nav-inner { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem 0 var(--pad); height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.nav-logo { display: inline-flex; align-items: center; flex-shrink: 0; }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a { font-size: 1.05rem; font-weight: 500; color: var(--gray); letter-spacing: 0.02em; transition: color 0.2s; padding-bottom: 4px; border-bottom: 2px solid transparent; white-space: nowrap; }
.nav-links a:hover { color: var(--navy); }
.nav-links a.active { color: var(--navy); border-bottom-color: var(--accent); }
.nav-cta { font-size: 0.95rem; font-weight: 600; background: var(--navy); color: var(--white); padding: 0.6rem 1.4rem; border-radius: 4px; white-space: nowrap; flex-shrink: 0; transition: background 0.2s; }
.nav-cta:hover { background: var(--navy-mid); }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 0.4rem; flex-shrink: 0; }
.nav-hamburger span { display: block; width: 22px; height: 2px; background: var(--navy); border-radius: 2px; }

/* PAGE HERO */
.page-hero { background: var(--navy); color: var(--white); padding: clamp(2.5rem, 6vw, 4rem) var(--pad); }
.page-hero-inner { max-width: var(--max); margin: 0 auto; }
.page-eyebrow { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; color: rgba(255,255,255,0.4); margin-bottom: 0.75rem; }
.page-title { font-family: var(--display); font-size: clamp(1.8rem, 4vw, 2.8rem); line-height: 1.1; letter-spacing: -0.02em; }

/* SECTIONS */
section { padding: clamp(3rem, 7vw, 5rem) var(--pad); }
.section-label { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.75rem; }
.section-title { font-family: var(--display); font-size: clamp(1.8rem, 3.5vw, 2.6rem); line-height: 1.15; color: var(--navy); margin-bottom: 1rem; letter-spacing: -0.01em; }
.section-intro { font-size: 1rem; color: var(--gray); max-width: 560px; line-height: 1.75; margin-bottom: 3rem; }

/* BUTTONS */
.btn-primary { display: inline-block; background: var(--white); color: var(--navy); font-weight: 600; font-size: 0.85rem; padding: 0.75rem 1.6rem; border-radius: 4px; letter-spacing: 0.02em; transition: opacity 0.2s; }
.btn-primary:hover { opacity: 0.88; }
.btn-ghost { display: inline-block; border: 1px solid rgba(255,255,255,0.3); color: rgba(255,255,255,0.8); font-weight: 500; font-size: 0.85rem; padding: 0.75rem 1.6rem; border-radius: 4px; letter-spacing: 0.02em; transition: border-color 0.2s, color 0.2s; }
.btn-ghost:hover { border-color: white; color: white; }

/* FOOTER */
footer { background: #080F1D; color: rgba(255,255,255,0.35); font-size: 0.78rem; padding: 1.5rem var(--pad); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; }
footer a { color: rgba(255,255,255,0.35); text-decoration: underline; text-underline-offset: 3px; }

/* i18n */
[data-lang] { display: none; }
.lang-fr [data-lang="fr"] { display: revert; }
.lang-en [data-lang="en"] { display: revert; }
span[data-lang] { display: none; }
.lang-fr span[data-lang="fr"] { display: inline; }
.lang-en span[data-lang="en"] { display: inline; }

/* MOBILE */
@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .nav-inner { padding-left: 0.75rem; padding-right: 0.75rem; gap: 0; justify-content: space-between; }
}