diff --git a/src/pages/countdown.astro b/src/pages/countdown.astro
new file mode 100644
index 0000000..32f7f3e
--- /dev/null
+++ b/src/pages/countdown.astro
@@ -0,0 +1,96 @@
+---
+import BaseLayout from '@/layouts/BaseLayout.astro';
+import '@/styles/global.css';
+---
+
+<BaseLayout title="L'Electron Rare — Bientôt" description="L'Electron Rare arrive. Systèmes électroniques spécifiques, formations, prototypage.">
+  <main class="countdown-page">
+    <svg class="atom" viewBox="0 0 300 300" xmlns="http://www.w3.org/2000/svg">
+      <ellipse cx="150" cy="150" rx="120" ry="45" fill="none" stroke="var(--trace-cyan-soft, #5bd1d866)" stroke-width="0.8" transform="rotate(-30 150 150)"/>
+      <ellipse cx="150" cy="150" rx="120" ry="45" fill="none" stroke="var(--trace-amber-soft, #f1c27a66)" stroke-width="0.8" transform="rotate(30 150 150)"/>
+      <ellipse cx="150" cy="150" rx="120" ry="45" fill="none" stroke="var(--trace-green-soft, #b6d18f44)" stroke-width="0.8" transform="rotate(90 150 150)"/>
+      <circle cx="150" cy="150" r="18" fill="url(#nucleusGlow)"/>
+      <circle cx="150" cy="150" r="8" fill="var(--accent, #f1c27a)"/>
+      <circle r="5" fill="var(--electric, #5bd1d8)"><animateMotion dur="3s" repeatCount="indefinite"><mpath href="#o1"/></animateMotion></circle>
+      <circle r="10" fill="var(--electric, #5bd1d8)" opacity="0.3"><animateMotion dur="3s" repeatCount="indefinite"><mpath href="#o1"/></animateMotion></circle>
+      <circle r="4" fill="var(--accent, #f1c27a)"><animateMotion dur="4.2s" repeatCount="indefinite"><mpath href="#o2"/></animateMotion></circle>
+      <circle r="9" fill="var(--accent, #f1c27a)" opacity="0.25"><animateMotion dur="4.2s" repeatCount="indefinite"><mpath href="#o2"/></animateMotion></circle>
+      <circle r="3" fill="var(--trace-green, #b6d18f)"><animateMotion dur="5.8s" repeatCount="indefinite"><mpath href="#o3"/></animateMotion></circle>
+      <circle r="8" fill="var(--trace-green, #b6d18f)" opacity="0.2"><animateMotion dur="5.8s" repeatCount="indefinite"><mpath href="#o3"/></animateMotion></circle>
+      <defs>
+        <ellipse id="o1" cx="150" cy="150" rx="120" ry="45" transform="rotate(-30 150 150)" fill="none"/>
+        <ellipse id="o2" cx="150" cy="150" rx="120" ry="45" transform="rotate(30 150 150)" fill="none"/>
+        <ellipse id="o3" cx="150" cy="150" rx="120" ry="45" transform="rotate(90 150 150)" fill="none"/>
+        <radialGradient id="nucleusGlow">
+          <stop offset="0%" stop-color="var(--accent, #f1c27a)" stop-opacity="0.6"/>
+          <stop offset="100%" stop-color="var(--accent, #f1c27a)" stop-opacity="0"/>
+        </radialGradient>
+      </defs>
+    </svg>
+    <h1 class="title">L'<span class="electric">é</span>lectron rare</h1>
+    <div class="timer" id="timer">
+      <div class="unit"><span class="num" id="days">--</span><span class="label">jours</span></div>
+      <div class="sep">:</div>
+      <div class="unit"><span class="num" id="hours">--</span><span class="label">heures</span></div>
+      <div class="sep">:</div>
+      <div class="unit"><span class="num" id="minutes">--</span><span class="label">minutes</span></div>
+      <div class="sep">:</div>
+      <div class="unit"><span class="num" id="seconds">--</span><span class="label">secondes</span></div>
+    </div>
+    <p class="tagline" id="tagline"></p>
+    <p class="footnote">Systèmes électroniques spécifiques · Formations · Prototypage</p>
+  </main>
+</BaseLayout>
+
+<script>
+  const LAUNCH = new Date('2026-05-01T00:00:00+02:00').getTime();
+  const messages = [
+    "Charge des condensateurs en cours...",
+    "Calibration de l'oscilloscope...",
+    "Soudure des derniers composants...",
+    "Vérification de la BOM...",
+    "Flash du firmware en cours...",
+    "Mesure de continuité... bip.",
+    "Routage des dernières pistes...",
+    "Test de la chaîne d'alimentation...",
+    "Programmation du bootloader...",
+    "Revue de schéma en cours...",
+    "Placement des composants CMS...",
+    "Passage au four de refusion...",
+    "Debug JTAG en cours...",
+    "Vérification du plan de masse...",
+    "Analyse du spectre RF..."
+  ];
+  let msgIndex = Math.floor(Math.random() * messages.length);
+  function pad(n) { return String(n).padStart(2, '0'); }
+  function update() {
+    const diff = Math.max(0, LAUNCH - Date.now());
+    document.getElementById('days').textContent = pad(Math.floor(diff / 86400000));
+    document.getElementById('hours').textContent = pad(Math.floor((diff % 86400000) / 3600000));
+    document.getElementById('minutes').textContent = pad(Math.floor((diff % 3600000) / 60000));
+    document.getElementById('seconds').textContent = pad(Math.floor((diff % 60000) / 1000));
+  }
+  function rotateMessage() {
+    const el = document.getElementById('tagline');
+    el.style.opacity = '0';
+    setTimeout(() => { el.textContent = messages[msgIndex]; el.style.opacity = '1'; msgIndex = (msgIndex + 1) % messages.length; }, 400);
+  }
+  update(); rotateMessage();
+  setInterval(update, 1000);
+  setInterval(rotateMessage, 8000);
+</script>
+
+<style>
+  .countdown-page { min-height:100vh; display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; padding:48px 24px; background:var(--bg,#0b0a09); }
+  .atom { width:clamp(180px,35vw,260px); height:auto; margin-bottom:24px; }
+  .title { font-family:'Fraunces',serif; font-size:clamp(28px,5vw,48px); font-weight:700; color:var(--text,#f4eee3); margin:0 0 32px; letter-spacing:-1px; }
+  .electric { color:var(--electric,#5bd1d8); animation:pulse 3s ease-in-out infinite; }
+  @keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.6;text-shadow:0 0 12px var(--electric,#5bd1d8)} }
+  .timer { display:flex; align-items:center; gap:8px; margin-bottom:32px; }
+  .unit { display:flex; flex-direction:column; align-items:center; }
+  .num { font-family:'IBM Plex Mono','Share Tech Mono',monospace; font-size:clamp(36px,8vw,72px); font-weight:600; color:var(--text,#f4eee3); line-height:1; min-width:2ch; }
+  .label { font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--text-dim,#b6a894); text-transform:uppercase; letter-spacing:2px; margin-top:6px; }
+  .sep { font-family:'IBM Plex Mono',monospace; font-size:clamp(28px,6vw,56px); color:var(--accent,#f1c27a); opacity:.5; margin-bottom:20px; }
+  .tagline { font-family:'IBM Plex Mono',monospace; font-size:14px; color:var(--accent,#f1c27a); margin:0 0 40px; min-height:1.5em; transition:opacity .4s ease; }
+  .footnote { font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--text-dim,#b6a894); opacity:.4; letter-spacing:.5px; }
+</style>