/* ═══════════════════════════════════════════════════════════
   STYLE PAGE FONCTIONNALITÉS — nouveau style dark, cohérent avec landing.css
   Polices : Bebas Neue (titres) · Syne (corps) · DM Mono (mono)
════════════════════════════════════════════════════════════ */

/* ═══════════ VARIABLES & BASE ═══════════ */
:root {
  --vp: #764ba2; --vb: #667eea; --vc: #c4b5fd;
  --g: linear-gradient(135deg, #764ba2, #667eea);
  --bg: #0a0a14; --bg2: #0f0e1a;
  --muted: rgba(255,255,255,.5); --border: rgba(255,255,255,.1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Syne', sans-serif; color: #fff; background: var(--bg); line-height: 1.75; overflow-x: hidden; }

/* ═══════════ HEADER ═══════════ */
.header { position: sticky; top: 0; z-index: 50; background: rgba(10,10,20,.75); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(255,255,255,.06); display: flex; align-items: center; gap: 16px; padding: 14px 24px; }
.logo { flex-shrink: 0; font-family: 'Bebas Neue', sans-serif; font-size: 1.4rem; letter-spacing: .18em; background: var(--g); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.logo a { display: flex; align-items: center; gap: 10px; text-decoration: none; background: var(--g); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
#imgLogo { width: 28px; height: 28px; border-radius: 6px; margin-left: 0; }
.header nav { flex: 1; display: flex; align-items: center; justify-content: center; gap: 28px; font-size: .85rem; color: var(--muted); }
.header nav a { color: inherit; text-decoration: none; transition: color .15s; }
.header nav a:hover { color: #fff; }
#lang-buttons { display: flex; gap: 6px; border-left: 1px solid rgba(255,255,255,.1); padding-left: 16px; margin-left: 8px; }
.lang-btn { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.55); font-size: .72rem; padding: 5px 9px; border-radius: 6px; cursor: pointer; font-family: 'DM Mono', monospace; transition: all .15s; }
.lang-btn.active, .lang-btn:hover { background: rgba(167,139,250,.2); border-color: rgba(167,139,250,.4); color: var(--vc); }
.hamburger-btn { display: none; background: none; border: none; color: #fff; font-size: 1.4rem; cursor: pointer; padding: 4px; flex-shrink: 0; }

/* ═══════════ CONTAINER / LANG-SECTION ═══════════ */
.container { max-width: 1300px; margin: 0 auto; }
.lang-section { display: none; }
.lang-section.active { display: block; }

/* ═══════════ FEATURES ═══════════ */
.features { padding: 5rem 2rem; display: flex; flex-direction: column; align-items: center; }
.section-title { font-family: 'Bebas Neue', sans-serif; font-size: clamp(2rem, 5vw, 3.5rem); background: var(--g); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 1rem; letter-spacing: .04em; text-align: center; }
.section-subtitle { text-align: center; color: rgba(255,255,255,.78); margin: 0 auto 3rem; font-size: 1.05rem; max-width: 640px; font-weight: 400; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 2rem; max-width: 1200px; margin: 0 auto; width: 100%; }
.feature-card { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1); padding: 2rem; border-radius: 20px; text-align: center; transition: border-color .2s, transform .2s, box-shadow .2s; }
.feature-card:hover { border-color: rgba(167,139,250,.45); transform: translateY(-6px); box-shadow: 0 16px 40px rgba(118,75,162,.2); }
.feature-icon { font-size: 2.5rem; margin-bottom: 1rem; display: block; }
.feature-title { font-family: 'Bebas Neue', sans-serif; font-size: 1.3rem; margin-bottom: .75rem; color: var(--vc); letter-spacing: .03em; }
.feature-desc { color: rgba(255,255,255,.7); line-height: 1.75; font-size: .9rem; }
.feature-desc strong { color: rgba(255,255,255,.9); }

/* ═══════════ BACK LINK ═══════════ */
.back-link { display: inline-flex; align-items: center; gap: 8px; background: var(--g); color: #fff; padding: 12px 28px; border-radius: 99px; text-decoration: none; font-family: 'Syne', sans-serif; font-weight: 700; font-size: .9rem; margin-top: 2rem; box-shadow: 0 8px 30px rgba(118,75,162,.4); transition: transform .15s, box-shadow .15s; }
.back-link:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(118,75,162,.55); }

/* ═══════════ FAQ ═══════════ */
.faq-section { padding: 5rem 2rem; display: flex; flex-direction: column; align-items: center; }
.faq-title { text-align: center; }
.faq-container { width: 100%; max-width: 860px; display: flex; flex-direction: column; gap: .75rem; }
.faq-item { background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.09); border-radius: 14px; overflow: hidden; transition: border-color .2s, box-shadow .2s; }
.faq-item:hover { border-color: rgba(167,139,250,.3); }
.faq-item.open { border-color: rgba(167,139,250,.45); box-shadow: 0 8px 28px rgba(118,75,162,.15); }
.faq-question { width: 100%; background: none; border: none; padding: 1.1rem 1.4rem; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-family: 'Syne', sans-serif; font-size: .95rem; font-weight: 700; color: rgba(255,255,255,.85); text-align: left; gap: 1rem; transition: background .15s; }
.faq-question:hover { background: rgba(255,255,255,.03); }
.faq-item.open .faq-question { color: #fff; }
.faq-icon { font-size: 1.2rem; font-weight: 800; color: var(--vc); flex-shrink: 0; transition: transform .3s, color .3s; line-height: 1; }
.faq-item.open .faq-icon { transform: rotate(45deg); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .3s ease; padding: 0 1.4rem; }
.faq-answer.open { max-height: 600px; padding: 0 1.4rem 1.2rem; }
.faq-answer p { color: rgba(255,255,255,.65); line-height: 1.8; font-size: .9rem; margin-bottom: .5rem; }
.faq-answer p:last-child { margin-bottom: 0; }
.faq-answer ul { list-style: none; padding: 0; margin: .5rem 0 0; display: flex; flex-direction: column; gap: .4rem; }
.faq-answer ul li { color: rgba(255,255,255,.65); font-size: .9rem; padding-left: 1.2rem; position: relative; }
.faq-answer ul li::before { content: '→'; position: absolute; left: 0; color: var(--vc); font-weight: 700; }
.faq-answer a { color: var(--vc); }

/* ═══════════ FOOTER ═══════════ */
footer.footer { padding: 48px 0; border-top: 1px solid rgba(255,255,255,.06); }
.footer-content { max-width: 1140px; margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-logo { font-family: 'Bebas Neue', sans-serif; font-size: 1.2rem; letter-spacing: .16em; color: rgba(255,255,255,.4); }
.footer-links { display: flex; gap: 24px; font-size: .82rem; color: var(--muted); }
.footer-links a { color: inherit; text-decoration: none; transition: color .15s; }
.footer-links a:hover { color: #fff; }
.footer-social { display: flex; gap: 14px; }
.footer-social a { color: rgba(255,255,255,.4); transition: color .15s; }
.footer-social a:hover { color: #fff; }
.footer-copy { font-family: 'DM Mono', monospace; font-size: .75rem; color: var(--muted); }

/* ═══════════ RESPONSIVE ═══════════ */
@media (max-width: 760px) {
  .hamburger-btn { display: block; }
  .header nav { display: none; position: absolute; top: 57px; left: 0; right: 0; background: rgba(10,10,20,.97); backdrop-filter: blur(14px); flex-direction: column; align-items: flex-start; padding: 20px 24px; gap: 16px; border-bottom: 1px solid rgba(255,255,255,.08); }
  .header nav.nav-open { display: flex; }
  #lang-buttons { border-left: none; padding-left: 0; margin-left: 0; flex-wrap: wrap; }
}
@media (max-width: 768px) {
  .features { padding: 3rem 1rem; }
  .faq-section { padding: 3rem 1rem; }
  .features-grid { grid-template-columns: 1fr; gap: 1.2rem; }
  .feature-card { padding: 1.5rem; }
  .section-title { font-size: 2rem; }
  .section-subtitle { font-size: .95rem; }
}
@media (max-width: 480px) {
  .feature-icon { font-size: 2rem; }
  .feature-title { font-size: 1.1rem; }
  .faq-question { font-size: .88rem; padding: 1rem; }
}


/* ═══════════════════════════════════════════════════════════
   ANCIEN STYLE (conservé) — remplacé par le style dark ci-dessus
════════════════════════════════════════════════════════════ */
/*

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif; color: #333; background: #f8f9fa; line-height: 1.8; }
.header { background: rgba(255, 255, 255, 0.95); padding: 1.5rem 2rem; box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1); display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 1000; }
nav { display: flex; gap: 2rem; align-items: center; }
nav a { color: black; text-decoration: none; font-weight: 600; font-size: 1rem; transition: all 0.3s; position: relative; }
nav a::after { content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 3px; background: #e63848; transition: width 0.3s; border-radius: 10px; }
nav a:hover::after { width: 100%; }
.lang-btn { background: rgba(255, 255, 255, 0.2); color: black; border: none; padding: 0.4rem 0.8rem; border-radius: 8px; cursor: pointer; font-weight: 600; transition: all 0.3s; }
#lang-buttons { display: flex; gap: 0.5rem; border-left: 2px solid rgba(0, 0, 0, 0.3); padding-left: 1.5rem; margin-left: 1rem; }
.lang-btn:hover, .lang-btn.active { background: #e63848; }
.logo { font-size: 2rem; font-weight: 800; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; animation: pulse 2s ease-in-out infinite; }
.logo a { text-decoration: none; }
#imgLogo { height: 40px; vertical-align: middle; margin-left: 10px; }
.lang-section { display: none; background: white; border-radius: 20px; box-shadow: 0 5px 30px rgba(0, 0, 0, 0.1); }
.lang-section.active { display: block; }
.back-link { background: linear-gradient(135deg, #764ba2 0%, #667eea 100%); color: white; border-radius: 25px; font-weight: 700; display: inline-block; padding: 1rem 2rem; text-decoration: none; margin-top: 2rem; transition: background 0.3s, transform 0.2s; }
.back-link:hover { background: linear-gradient(135deg, #e63848 0%, #764ba2 100%); transform: translateY(-2px) scale(1.03); }
.features { padding: 5rem 2rem; background: white; display: flex; flex-direction: column; align-items: center; }
.section-title { font-family: 'Bangers', cursive; font-size: 3.5rem; margin-bottom: 1rem; color: #764ba2; letter-spacing: 2px; text-shadow: 2px 2px 8px rgba(102, 126, 234, 0.08); }
.section-subtitle { text-align: center; color: #666; margin-bottom: 3rem; font-size: 1.3rem; font-weight: 500; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 2.5rem; max-width: 1200px; margin: 0 auto; width: 100%; }
.feature-card { background: linear-gradient(135deg, #fff 80%, #f8f9fa 100%); box-shadow: 0 8px 32px rgba(102, 126, 234, 0.08); border: 2px solid #764ba2; padding: 2.5rem; border-radius: 25px; text-align: center; transition: all 0.4s; }
.feature-card:hover { transform: translateY(-15px) rotate(2deg); box-shadow: 0 20px 50px rgba(230, 56, 72, 0.2); border-color: #e63848; }
.feature-icon { font-size: 4rem; margin-bottom: 1.5rem; display: inline-block; animation: wiggle 3s ease-in-out infinite; }
.feature-title { font-size: 1.5rem; margin-bottom: 1rem; color: #0063a3; font-weight: 800; }
.feature-desc { color: #666; line-height: 1.8; font-size: 1.05rem; }
.faq-section { padding: 5rem 2rem; background: white; display: flex; flex-direction: column; align-items: center; }
.faq-title { text-align: center; font-size: clamp(2.5rem, 8vw, 7rem); }
.faq-container { width: 100%; max-width: 860px; display: flex; flex-direction: column; gap: 1rem; }
.faq-item { border: 2px solid #764ba2; border-radius: 16px; overflow: hidden; transition: border-color 0.3s, box-shadow 0.3s; }
.faq-item:hover { border-color: #e63848; box-shadow: 0 6px 24px rgba(230, 56, 72, 0.12); }
.faq-item.open { border-color: #e63848; box-shadow: 0 8px 28px rgba(102, 126, 234, 0.15); }
.faq-question { width: 100%; background: none; border: none; padding: 1.2rem 1.5rem; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-size: 1.05rem; font-weight: 700; color: #333; text-align: left; gap: 1rem; transition: background 0.2s; }
.faq-question:hover { background: #faf5ff; }
.faq-item.open .faq-question { background: linear-gradient(135deg, #faf5ff 0%, #fff0f1 100%); color: #764ba2; }
.faq-icon { font-size: 1.4rem; font-weight: 800; color: #764ba2; flex-shrink: 0; transition: transform 0.3s, color 0.3s; line-height: 1; }
.faq-item.open .faq-icon { transform: rotate(45deg); color: #e63848; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.3s ease; padding: 0 1.5rem; }
.faq-answer.open { max-height: 500px; padding: 0 1.5rem 1.4rem; }
.faq-answer p { color: #555; line-height: 1.8; font-size: 1rem; margin-bottom: 0.5rem; }
.faq-answer ul { list-style: none; padding: 0; margin: 0.5rem 0 0; display: flex; flex-direction: column; gap: 0.4rem; }
.faq-answer ul li { color: #555; font-size: 1rem; padding-left: 1.2rem; position: relative; }
.faq-answer ul li::before { content: '→'; position: absolute; left: 0; color: #764ba2; font-weight: 700; }
.footer { background: linear-gradient(135deg, #4a7fd6 0%, #5e8eea 100%); color: #fff; padding: 3rem 2rem; text-align: center; }
.footer-content { max-width: 1200px; margin: 0 auto; }
.footer-links { display: flex; justify-content: center; gap: 2rem; margin-bottom: 2rem; flex-wrap: wrap; }
.footer-links a { color: white; text-decoration: none; transition: color 0.3s; }
@keyframes wiggle { 0%, 100% { transform: rotate(0deg); } 25% { transform: rotate(-10deg); } 75% { transform: rotate(10deg); } }
@keyframes spin { 0% { transform: rotate(0deg) scale(1); } 50% { transform: rotate(180deg) scale(1.2); } 100% { transform: rotate(360deg) scale(1); } }
.hamburger-btn { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: #764ba2; padding: 0.3rem 0.5rem; line-height: 1; border-radius: 8px; transition: background 0.2s; }
.hamburger-btn:hover { background: rgba(118, 75, 162, 0.1); }
@keyframes pulse { 0% { transform: scale(1); filter: brightness(1); } 50% { transform: scale(1.08); filter: brightness(1.2); } 100% { transform: scale(1); filter: brightness(1); } }

*/