/* css/main.css — xael.dev v7 - test fond */

@import url("themes/_engine.css");
@import url("themes/dark.css");

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background: #0a0a0f;
  min-height: 100vh;
  overflow-x: hidden;
}

/* FOND ANIMÉ — directement sur body via pseudo-élément */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 50% at 20% 20%, rgba(59,130,246,0.15) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 80% 80%, rgba(16,185,129,0.12) 0%, transparent 50%),
    radial-gradient(ellipse 40% 35% at 50% 50%, rgba(139,92,246,0.1) 0%, transparent 50%);
  animation: bgShift 15s ease-in-out infinite alternate;
}

@keyframes bgShift {
  0%   { opacity: 0.7; transform: scale(1); }
  100% { opacity: 1; transform: scale(1.05); }
}

/* Grille de points */
body::after {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* Orbes flottants — éléments DOM séparés */
.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-orbs .orb {
  position: absolute;
  border-radius: 50%;
  will-change: transform;
}
.bg-orbs .orb-a {
  width: 500px; height: 500px;
  top: -100px; left: -100px;
  background: radial-gradient(circle, rgba(59,130,246,0.5) 0%, transparent 70%);
  filter: blur(40px);
  animation: orbA 20s ease-in-out infinite;
}
.bg-orbs .orb-b {
  width: 400px; height: 400px;
  bottom: -80px; right: -80px;
  background: radial-gradient(circle, rgba(16,185,129,0.45) 0%, transparent 70%);
  filter: blur(50px);
  animation: orbB 25s ease-in-out infinite;
}
.bg-orbs .orb-c {
  width: 300px; height: 300px;
  top: 40%; left: 50%;
  background: radial-gradient(circle, rgba(139,92,246,0.4) 0%, transparent 70%);
  filter: blur(35px);
  animation: orbC 18s ease-in-out infinite;
}

@keyframes orbA {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(80px, -60px); }
}
@keyframes orbB {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-60px, 80px); }
}
@keyframes orbC {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-50px, -40px) scale(1.2); }
}

/* Contenu au-dessus */
.site-nav, main, footer { position: relative; z-index: 1; }

/* ═══════════════════════════════════════
   TYPOGRAPHY
   ═══════════════════════════════════════ */
img { display: block; max-width: 100%; height: auto; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; color: var(--color-text); }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); letter-spacing: -.03em; margin-bottom: var(--space-4); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -.01em; margin-bottom: var(--space-3); }
h3 { font-size: 1.125rem; margin-bottom: var(--space-2); }
p { color: var(--color-text-muted); }
p + p { margin-top: var(--space-3); }
strong { color: var(--color-text); }

.gradient-text {
  background: linear-gradient(135deg, #60a5fa 0%, #34d399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(96,165,250,.1);
  border: 1px solid rgba(96,165,250,.2);
}

/* ═══════════════════════════════════════
   LAYOUT
   ═══════════════════════════════════════ */
.container { width: 100%; max-width: 1100px; margin-inline: auto; padding-inline: var(--space-6); }
.grid { display: grid; gap: var(--space-6); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.section { padding-block: var(--space-16); }
.section + .section { padding-top: 0; }

@media (min-width: 640px)  { .container { max-width: 640px; } }
@media (min-width: 768px)  { .container { max-width: 768px; } }
@media (min-width: 1024px) { .container { max-width: 1024px; } }
@media (min-width: 1280px) { .container { max-width: 1100px; } }
@media (max-width: 767px) { .grid-3 { grid-template-columns: 1fr; } }

/* ═══════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════ */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,10,15,.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,.06);
  padding-block: var(--space-3);
}
.site-nav .container { display: flex; align-items: center; justify-content: space-between; }
.nav-brand { font-weight: 700; font-size: 1.125rem; color: var(--color-text); letter-spacing: -.02em; }
.nav-brand span { color: var(--color-primary); }
.nav-links { display: none; gap: var(--space-6); }
.nav-links a { color: var(--color-text-muted); font-weight: 500; font-size: .875rem; transition: color var(--duration) var(--ease); position: relative; }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--color-primary); transition: width .3s var(--ease); }
.nav-links a:hover { color: var(--color-text); }
.nav-links a:hover::after { width: 100%; }
.nav-links.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: rgba(10,10,15,.95); backdrop-filter: blur(20px); padding: var(--space-4); border-bottom: 1px solid rgba(255,255,255,.06); }
.nav-toggle { display: flex; flex-direction: column; gap: 5px; padding: var(--space-2); }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-text); transition: all var(--duration) var(--ease); }
.nav-actions { display: flex; align-items: center; gap: var(--space-3); }
.theme-toggle { padding: var(--space-2); border-radius: var(--radius-md); color: var(--color-text-muted); transition: all var(--duration) var(--ease); }
.theme-toggle:hover { background: rgba(255,255,255,.08); color: var(--color-text); }
@media (min-width: 768px) { .nav-links { display: flex; } .nav-toggle { display: none; } }

/* ═══════════════════════════════════════
   HERO
   ═══════════════════════════════════════ */
.hero { padding-top: var(--space-20); }
.hero-content { max-width: 640px; }
.hero-subtitle { font-size: 1.125rem; max-width: 520px; }

/* ═══════════════════════════════════════
   CARDS
   ═══════════════════════════════════════ */
.card {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform .35s ease, box-shadow .35s ease, background .35s ease;
  position: relative;
  overflow: hidden;
}
.card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,.1), transparent); opacity: 0; transition: opacity .35s ease; }
.card:hover { transform: translateY(-4px); box-shadow: 0 20px 60px rgba(0,0,0,.4); background: rgba(255,255,255,.06); }
.card:hover::before { opacity: 1; }
.card-title { font-size: 1.125rem; font-weight: 600; margin-bottom: var(--space-2); color: var(--color-text); }
.card-body { font-size: .875rem; line-height: 1.6; }
.card-meta { font-size: .75rem; color: var(--color-text-muted); margin-top: var(--space-4); display: flex; gap: var(--space-4); }
.card-icon { width: 44px; height: 44px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; background: rgba(96,165,250,.1); font-size: 1.25rem; margin-bottom: var(--space-4); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #34d399; display: inline-block; margin-right: var(--space-2); box-shadow: 0 0 10px rgba(52,211,153,.5); animation: pulse 3s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 8px rgba(52,211,153,.4); } 50% { box-shadow: 0 0 16px rgba(52,211,153,.7); } }

/* ═══════════════════════════════════════
   PRINCIPLES
   ═══════════════════════════════════════ */
.principle-number { font-family: var(--font-mono); font-size: .75rem; font-weight: 500; color: var(--color-primary); opacity: .4; margin-bottom: var(--space-4); }

/* ═══════════════════════════════════════
   TAGS
   ═══════════════════════════════════════ */
.tag { display: inline-flex; align-items: center; padding: var(--space-2) var(--space-4); border-radius: var(--radius-full); font-family: var(--font-mono); font-size: .75rem; font-weight: 500; color: var(--color-text-muted); background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.06); transition: all .25s ease; }
.tag:hover { color: var(--color-text); border-color: rgba(255,255,255,.15); background: rgba(255,255,255,.07); transform: translateY(-1px); }

/* ═══════════════════════════════════════
   STATS
   ═══════════════════════════════════════ */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); padding: var(--space-8); background: rgba(255,255,255,.02); border: 1px solid rgba(255,255,255,.05); border-radius: var(--radius-lg); position: relative; overflow: hidden; }
.stats-grid::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(96,165,250,.2), transparent); }
.stat { text-align: center; }
.stat-number { display: block; font-size: 2rem; font-weight: 700; color: var(--color-text); letter-spacing: -.02em; line-height: 1.2; }
.stat-label { font-size: .75rem; color: var(--color-text-muted); margin-top: var(--space-1); display: block; }
@media (max-width: 767px) { .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-6); } }

/* ═══════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════ */
.btn { display: inline-flex; align-items: center; gap: var(--space-2); padding: var(--space-3) var(--space-6); border-radius: var(--radius-md); font-weight: 600; font-size: .875rem; border: 2px solid transparent; transition: all .25s ease; }
.btn-primary { background: #3b82f6; color: #fff; }
.btn-primary:hover { background: #2563eb; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(59,130,246,.35); }
.btn-outline { background: transparent; border-color: rgba(255,255,255,.12); color: var(--color-text); }
.btn-outline:hover { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.2); transform: translateY(-1px); }

/* ═══════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════ */
.site-footer { border-top: 1px solid rgba(255,255,255,.06); padding-block: var(--space-8); margin-top: var(--space-16); }
.site-footer .container { display: flex; justify-content: center; }
.footer-copy { font-size: .8rem; color: var(--color-text-muted); text-align: center; }
.footer-copy a { color: var(--color-text-muted); }
.footer-copy a:hover { color: var(--color-text); }

/* ═══════════════════════════════════════
   A11Y & ANIMATIONS
   ═══════════════════════════════════════ */
.skip-link { position: absolute; top: -100%; left: var(--space-4); padding: var(--space-2) var(--space-4); background: var(--color-primary); color: #fff; border-radius: var(--radius-md); z-index: 9999; }
.skip-link:focus { top: var(--space-4); }
@media (prefers-reduced-motion: reduce) { .bg-orbs { display: none; } body::before { animation: none; } }
:focus-visible { outline: 3px solid var(--color-primary); outline-offset: 2px; border-radius: var(--radius-sm); }
.animate-pending { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.animate-pending.visible { opacity: 1; transform: translateY(0); }