diff --git a/package-lock.json b/package-lock.json
index 89e00e9..772c7f3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,8 @@
 			"dependencies": {
 				"@fontsource/archivo": "^5.3.0",
 				"@fontsource/inter": "^5.3.0",
-				"gsap": "^3.15.0"
+				"gsap": "^3.15.0",
+				"lenis": "^1.3.25"
 			},
 			"devDependencies": {
 				"@sveltejs/adapter-static": "^3.0.10",
@@ -5046,6 +5047,37 @@
 				"node": ">=6"
 			}
 		},
+		"node_modules/lenis": {
+			"version": "1.3.25",
+			"resolved": "https://registry.npmjs.org/lenis/-/lenis-1.3.25.tgz",
+			"integrity": "sha512-mOKxayErlaONK8fm4LN3XNd99Qu4plTpn9h9qf8wxzjGrJDzuD84FYzZ81HCd6ZsWp++VWVwOzL286Pf2s2u4A==",
+			"license": "MIT",
+			"workspaces": [
+				"packages/*",
+				"playground",
+				"playground/*"
+			],
+			"funding": {
+				"type": "github",
+				"url": "https://github.com/sponsors/darkroomengineering"
+			},
+			"peerDependencies": {
+				"@nuxt/kit": ">=3.0.0",
+				"react": ">=17.0.0",
+				"vue": ">=3.0.0"
+			},
+			"peerDependenciesMeta": {
+				"@nuxt/kit": {
+					"optional": true
+				},
+				"react": {
+					"optional": true
+				},
+				"vue": {
+					"optional": true
+				}
+			}
+		},
 		"node_modules/leven": {
 			"version": "3.1.0",
 			"resolved": "https://registry.npmjs.org/leven/-/leven-3.1.0.tgz",
diff --git a/package.json b/package.json
index 04ffc78..2672f44 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,7 @@
 	"dependencies": {
 		"@fontsource/archivo": "^5.3.0",
 		"@fontsource/inter": "^5.3.0",
-		"gsap": "^3.15.0"
+		"gsap": "^3.15.0",
+		"lenis": "^1.3.25"
 	}
 }
diff --git a/src/lib/components/Nav.svelte b/src/lib/components/Nav.svelte
index 0111873..0419132 100644
--- a/src/lib/components/Nav.svelte
+++ b/src/lib/components/Nav.svelte
@@ -1,16 +1,40 @@
 <script lang="ts">
 	import { page } from '$app/state';
 	import { resolve } from '$app/paths';
+	import { onMount } from 'svelte';
 	import { alternatePath, type Bundle, type Locale } from '$lib/i18n';
 
 	let { t, locale }: { t: Bundle; locale: Locale } = $props();
 
 	let menuOpen = $state(false);
 	let openDropdown = $state<string | null>(null);
+	let activeSection = $state('');
 
 	const altLocale: Locale = $derived(locale === 'fr' ? 'en' : 'fr');
 	const altHref = $derived(alternatePath(page.url.pathname, altLocale));
 
+	/** Extrait l'ancre d'une URL de nav (`/#solutions` → `solutions`). */
+	function anchorOf(url: string): string {
+		const i = url.indexOf('#');
+		return i >= 0 ? url.slice(i + 1) : '';
+	}
+
+	// Section courante surlignée : la bande médiane du viewport désigne l'actif
+	onMount(() => {
+		const sections = [...document.querySelectorAll('section[id]')];
+		if (sections.length === 0) return;
+		const io = new IntersectionObserver(
+			(entries) => {
+				for (const entry of entries) {
+					if (entry.isIntersecting) activeSection = entry.target.id;
+				}
+			},
+			{ rootMargin: '-40% 0px -55% 0px' }
+		);
+		for (const section of sections) io.observe(section);
+		return () => io.disconnect();
+	});
+
 	function rememberLangChoice() {
 		localStorage.setItem('oki-lang-pref', altLocale);
 	}
@@ -78,7 +102,12 @@
 					</li>
 				{:else}
 					<li>
-						<a href={resolve(item.url)} onclick={closeMenu}>{item.text}</a>
+						<a
+							href={resolve(item.url)}
+							class:active={anchorOf(item.url) !== '' && anchorOf(item.url) === activeSection}
+							aria-current={anchorOf(item.url) === activeSection ? 'true' : undefined}
+							onclick={closeMenu}>{item.text}</a
+						>
 					</li>
 				{/if}
 			{/each}
@@ -177,15 +206,36 @@
 	}
 
 	.nav-links a {
+		position: relative;
 		color: var(--blanc-creme);
 		font-weight: 500;
 		font-size: 0.95rem;
 	}
 
-	.nav-links a:hover {
+	/* Souligné or qui se dessine depuis la gauche (hover + section active) */
+	.nav-links a::after {
+		content: '';
+		position: absolute;
+		left: 0;
+		bottom: -6px;
+		width: 100%;
+		height: 2px;
+		background: var(--or-oki);
+		transform: scaleX(0);
+		transform-origin: left center;
+		transition: transform var(--dur-tanbou) var(--ease-syncope);
+	}
+
+	.nav-links a:hover,
+	.nav-links a.active {
 		color: var(--or-oki);
 	}
 
+	.nav-links a:hover::after,
+	.nav-links a.active::after {
+		transform: scaleX(1);
+	}
+
 	.lang-switch {
 		border: 1px solid var(--line);
 		border-radius: var(--radius-sm);
diff --git a/src/lib/components/motion/FlagChip.svelte b/src/lib/components/motion/FlagChip.svelte
new file mode 100644
index 0000000..0f0a94f
--- /dev/null
+++ b/src/lib/components/motion/FlagChip.svelte
@@ -0,0 +1,53 @@
+<script lang="ts">
+	import { reveal } from '$lib/motion/reveal';
+
+	/**
+	 * FlagChip — ornement de marque au-dessus des titres de section.
+	 * Version réduite de la flag-bar (charte : ≤ 1 flag-bar pleine largeur
+	 * par écran) : 4 segments francs noir/or/vert/rouge, 56 × 6 px.
+	 * Se dessine en scaleX 0 → 1 (origin left) à l'entrée du viewport via
+	 * use:reveal — état caché uniquement si html.js ET motion autorisée.
+	 * Les titres de section de l'accueil sont tous centrés : le chip aussi.
+	 */
+</script>
+
+<span class="flag-chip" aria-hidden="true" use:reveal></span>
+
+<style>
+	.flag-chip {
+		display: block;
+		width: 56px;
+		height: 6px;
+		margin: 0 auto var(--space-2);
+		background: linear-gradient(
+			to right,
+			#0d0d0d 0 25%,
+			var(--or-oki) 25% 50%,
+			var(--vert-oki) 50% 75%,
+			var(--rouge-oki) 75% 100%
+		);
+	}
+
+	:global(html.light-theme) .flag-chip {
+		background: linear-gradient(
+			to right,
+			#000 0 25%,
+			var(--or-oki) 25% 50%,
+			var(--vert-oki) 50% 75%,
+			var(--rouge-oki) 75% 100%
+		);
+	}
+
+	/* Dessin scaleX : remplace la translation du reveal de base.
+	   La transition (dur-mesure, ease-ka, délai --d) vient de base.css. */
+	@media (prefers-reduced-motion: no-preference) {
+		:global(html.js) .flag-chip {
+			transform: scaleX(0);
+			transform-origin: left center;
+		}
+
+		:global(html.js) .flag-chip:global(.in) {
+			transform: scaleX(1);
+		}
+	}
+</style>
diff --git a/src/lib/components/motion/IntroLoader.svelte b/src/lib/components/motion/IntroLoader.svelte
new file mode 100644
index 0000000..ec911aa
--- /dev/null
+++ b/src/lib/components/motion/IntroLoader.svelte
@@ -0,0 +1,216 @@
+<script lang="ts">
+	import { onMount } from 'svelte';
+
+	/**
+	 * IntroLoader — cérémonie d'entrée (P5 : chaque état est un moment designé).
+	 *
+	 * Visibilité pilotée par la classe `intro-pending` posée par theme.js
+	 * (externe, CSP-safe) : première visite de la session, JS actif, pas de
+	 * reduced-motion. Sans ces conditions, l'overlay est `display: none` et
+	 * la page est complète en dessous. La chorégraphie est 100 % CSS
+	 * (keyframes à délais syncopés) ; le JS ne gère que la sortie et le skip.
+	 */
+	const DURATION_MS = 1500; // début de la sortie (keyframes CSS)
+	const EXIT_MS = 480; // durée de la sortie (--dur-mesure)
+
+	function finish() {
+		sessionStorage.setItem('oki-intro', '1');
+		document.documentElement.classList.remove('intro-pending');
+	}
+
+	function skip() {
+		finish();
+	}
+
+	function onKeydown(event: KeyboardEvent) {
+		if (event.key === 'Escape') skip();
+	}
+
+	onMount(() => {
+		if (!document.documentElement.classList.contains('intro-pending')) return;
+		document.addEventListener('keydown', onKeydown);
+		// Fin de séquence : la sortie CSS est déjà jouée, on nettoie l'état.
+		const timer = setTimeout(finish, DURATION_MS + EXIT_MS + 100);
+		return () => {
+			clearTimeout(timer);
+			document.removeEventListener('keydown', onKeydown);
+		};
+	});
+</script>
+
+<div class="intro-loader" role="dialog" aria-label="Introduction">
+	<div class="intro-inner">
+		<div class="intro-flags" aria-hidden="true">
+			<span class="seg-noir"></span>
+			<span class="seg-or"></span>
+			<span class="seg-vert"></span>
+			<span class="seg-rouge"></span>
+		</div>
+		<img src="/images/logo-512x512.png" alt="" class="intro-logo" width="96" height="96" />
+		<p class="intro-title" aria-hidden="true">
+			<span class="intro-word w1">ORGANISATION KA</span>
+			<span class="intro-word w2">INTERNATIONALE</span>
+		</p>
+		<p class="intro-ka" lang="gcf">An nou maché</p>
+	</div>
+	<button type="button" class="intro-skip" onclick={skip}>Passer l'intro</button>
+</div>
+
+<style>
+	.intro-loader {
+		display: none;
+	}
+
+	/* Chorégraphie : uniquement quand theme.js a posé intro-pending */
+	:global(html.intro-pending) .intro-loader {
+		display: flex;
+		position: fixed;
+		inset: 0;
+		z-index: 2000;
+		background: var(--noir-oki);
+		align-items: center;
+		justify-content: center;
+		animation: intro-out var(--dur-mesure) var(--ease-ka) 1.5s forwards;
+	}
+
+	.intro-inner {
+		display: flex;
+		flex-direction: column;
+		align-items: center;
+		gap: var(--space-3);
+		text-align: center;
+		padding: 0 var(--space-4);
+	}
+
+	.intro-flags {
+		display: flex;
+		width: min(420px, 70vw);
+		height: 6px;
+	}
+
+	.intro-flags span {
+		flex: 1;
+		transform: scaleX(0);
+		transform-origin: left center;
+		animation: flag-draw 300ms var(--ease-ka) forwards;
+	}
+
+	.intro-flags span:nth-child(2) {
+		animation-delay: 100ms;
+	}
+
+	.intro-flags span:nth-child(3) {
+		animation-delay: 200ms;
+	}
+
+	.intro-flags span:nth-child(4) {
+		animation-delay: 300ms;
+	}
+
+	.seg-noir {
+		background: #0d0d0d;
+		outline: 1px solid var(--line);
+	}
+
+	.seg-or {
+		background: var(--or-oki);
+	}
+
+	.seg-vert {
+		background: var(--vert-oki);
+	}
+
+	.seg-rouge {
+		background: var(--rouge-oki);
+	}
+
+	.intro-logo {
+		width: 96px;
+		height: 96px;
+		opacity: 0;
+		transform: translateY(20px);
+		animation: rise var(--dur-mesure) var(--ease-ka) 450ms forwards;
+	}
+
+	.intro-title {
+		font-family: var(--font-display);
+		font-weight: 900;
+		text-transform: uppercase;
+		letter-spacing: -0.01em;
+		line-height: 1.05;
+		font-size: clamp(1.6rem, 5vw, 3rem);
+	}
+
+	.intro-word {
+		display: block;
+		opacity: 0;
+		transform: translateY(110%);
+		animation: rise var(--dur-mesure) var(--ease-ka) forwards;
+	}
+
+	.w1 {
+		animation-delay: 700ms;
+	}
+
+	.w2 {
+		color: var(--or-oki);
+		animation-delay: 820ms;
+	}
+
+	.intro-ka {
+		color: var(--muted);
+		font-size: 0.95rem;
+		opacity: 0;
+		animation: fade var(--dur-mesure) var(--ease-ka) 1100ms forwards;
+	}
+
+	.intro-skip {
+		position: absolute;
+		bottom: var(--space-4);
+		right: var(--space-4);
+		background: none;
+		border: 1px solid var(--line);
+		border-radius: var(--radius-sm);
+		color: var(--muted);
+		font: inherit;
+		font-size: 0.85rem;
+		padding: 0.4rem 0.9rem;
+		cursor: pointer;
+		opacity: 0;
+		animation: fade 300ms var(--ease-ka) 800ms forwards;
+		transition:
+			color var(--dur-tanbou) var(--ease-ka),
+			border-color var(--dur-tanbou) var(--ease-ka);
+	}
+
+	.intro-skip:hover {
+		color: var(--or-oki);
+		border-color: var(--or-oki);
+	}
+
+	@keyframes flag-draw {
+		to {
+			transform: scaleX(1);
+		}
+	}
+
+	@keyframes rise {
+		to {
+			opacity: 1;
+			transform: translateY(0);
+		}
+	}
+
+	@keyframes fade {
+		to {
+			opacity: 1;
+		}
+	}
+
+	@keyframes intro-out {
+		to {
+			transform: translateY(-100%);
+			visibility: hidden;
+		}
+	}
+</style>
diff --git a/src/lib/components/motion/Marquee.svelte b/src/lib/components/motion/Marquee.svelte
new file mode 100644
index 0000000..861a921
--- /dev/null
+++ b/src/lib/components/motion/Marquee.svelte
@@ -0,0 +1,104 @@
+<script lang="ts">
+	import type { Bundle } from '$lib/i18n';
+
+	/**
+	 * Marquee kréyòl — bande cinétique typographique.
+	 * Défilement 100 % CSS (contenu dupliqué aria-hidden pour la boucle),
+	 * pause au hover/focus, coupée en reduced-motion (gate globale base.css
+	 * + règle dédiée ci-dessous).
+	 */
+	let { t }: { t: Bundle } = $props();
+
+	const items: string[] = $derived([
+		t.site.tagline,
+		...t.values.map((v: { title: string }) => v.title),
+		'ORGANISATION KA INTERNATIONALE'
+	]);
+</script>
+
+<div class="marquee" aria-hidden="true">
+	<div class="marquee-track">
+		{#each [0, 1] as copy (copy)}
+			<div class="marquee-group">
+				{#each items as item, i (i)}
+					<span class="marquee-item">{item}</span>
+					<svg class="icon marquee-star" aria-hidden="true"><use href="/icons.svg#zetwal" /></svg>
+				{/each}
+			</div>
+		{/each}
+	</div>
+</div>
+
+<style>
+	.marquee {
+		overflow: hidden;
+		border-top: 1px solid var(--line);
+		border-bottom: 1px solid var(--line);
+		background: var(--noir-profond);
+		padding: var(--space-2) 0;
+	}
+
+	.marquee-track {
+		display: flex;
+		width: max-content;
+		animation: marquee-scroll 36s linear infinite;
+	}
+
+	.marquee:hover .marquee-track,
+	.marquee:focus-within .marquee-track {
+		animation-play-state: paused;
+	}
+
+	.marquee-group {
+		display: flex;
+		align-items: center;
+		flex-shrink: 0;
+	}
+
+	.marquee-item {
+		font-family: var(--font-display);
+		font-weight: 800;
+		text-transform: uppercase;
+		letter-spacing: 0.04em;
+		font-size: clamp(1.1rem, 2.5vw, 1.6rem);
+		color: var(--muted);
+		white-space: nowrap;
+		padding: 0 var(--space-3);
+		transition: color var(--dur-tanbou) var(--ease-ka);
+	}
+
+	.marquee:hover .marquee-item {
+		color: var(--blanc-creme);
+	}
+
+	.marquee-item:first-child {
+		color: var(--or-oki);
+	}
+
+	.marquee-star {
+		width: 1rem;
+		height: 1rem;
+		color: var(--or-oki);
+		flex-shrink: 0;
+	}
+
+	@keyframes marquee-scroll {
+		to {
+			transform: translateX(-50%);
+		}
+	}
+
+	@media (prefers-reduced-motion: reduce) {
+		.marquee-track {
+			animation: none;
+			flex-wrap: wrap;
+			width: 100%;
+			justify-content: center;
+		}
+
+		/* Pas de doublon à l'arrêt */
+		.marquee-group:last-child {
+			display: none;
+		}
+	}
+</style>
diff --git a/src/lib/components/sections/Clients.svelte b/src/lib/components/sections/Clients.svelte
index 2ee4b14..fdfe02d 100644
--- a/src/lib/components/sections/Clients.svelte
+++ b/src/lib/components/sections/Clients.svelte
@@ -1,7 +1,9 @@
 <script lang="ts">
+	import FlagChip from '$lib/components/motion/FlagChip.svelte';
 	import KineticText from '$lib/components/motion/KineticText.svelte';
 	import ResponsiveImage from '$lib/components/ResponsiveImage.svelte';
 	import type { Bundle, Locale } from '$lib/i18n';
+	import { reveal } from '$lib/motion/reveal';
 
 	import kaubuntuCom from '$lib/assets/images/clients/kaubuntu-com.png?format=avif;webp;png&w=320;640&as=picture';
 	import kaubuntuRe from '$lib/assets/images/clients/kaubuntu-re.png?format=avif;webp;png&w=320;640&as=picture';
@@ -18,6 +20,7 @@
 
 <section id="clients" class="section">
 	<div class="container">
+		<FlagChip />
 		<h2 class="section-title">
 			<KineticText as="span" text={t.clients.section_title} />&#32;
 			<span class="accent-text"
@@ -27,8 +30,14 @@
 		<p class="section-subtitle">{t.clients.section_subtitle}</p>
 
 		<div class="clients-grid">
-			{#each t.clients.items as client (client.domain)}
-				<a href={client.url} target="_blank" rel="external noopener noreferrer" class="client-card">
+			{#each t.clients.items as client, i (client.domain)}
+				<a
+					href={client.url}
+					target="_blank"
+					rel="external noopener noreferrer"
+					class="client-card"
+					use:reveal={i}
+				>
 					<div class="client-logo-container">
 						<ResponsiveImage
 							picture={LOGOS[client.logo]}
diff --git a/src/lib/components/sections/Contact.svelte b/src/lib/components/sections/Contact.svelte
index 9185a44..53d2dfb 100644
--- a/src/lib/components/sections/Contact.svelte
+++ b/src/lib/components/sections/Contact.svelte
@@ -1,8 +1,10 @@
 <script lang="ts">
 	// {@html} sur contenu first-party (JSON i18n du dépôt), aucune donnée utilisateur.
 	import BrandIcon from '$lib/components/icons/BrandIcon.svelte';
+	import FlagChip from '$lib/components/motion/FlagChip.svelte';
 	import KineticText from '$lib/components/motion/KineticText.svelte';
 	import type { Bundle, Locale } from '$lib/i18n';
+	import { reveal } from '$lib/motion/reveal';
 	import { splitLeadingEmoji } from './pictos';
 
 	let { t }: { t: Bundle; locale?: Locale } = $props();
@@ -35,16 +37,17 @@
 
 <section class="section contact" id="contact">
 	<div class="container">
+		<FlagChip />
 		<h2 class="section-title">
 			<KineticText as="span" text={t.contact.title} />
 		</h2>
 		<!-- Contenu éditorial du bundle i18n (lien mailto balisé). -->
-		<p class="contact-lede">{@html t.contact.lede}</p>
+		<p class="contact-lede" use:reveal={0}>{@html t.contact.lede}</p>
 	</div>
 	<div class="contact-socials container">
-		{#each t.contact.sections as group (group.title)}
+		{#each t.contact.sections as group, i (group.title)}
 			{@const title = splitLeadingEmoji(group.title)}
-			<div class="contact-socials-group">
+			<div class="contact-socials-group" use:reveal={i}>
 				<h3 class="contact-socials-title">
 					{#if title.icon}
 						<svg class="icon" aria-hidden="true"><use href="/icons.svg#{title.icon}" /></svg>
@@ -52,7 +55,7 @@
 					{title.text}
 				</h3>
 				<div class="contact-socials-row">
-					{#each group.links as link (link.url)}
+					{#each group.links as link, j (link.url)}
 						{@const icon = iconFor(link.text)}
 						<a
 							href={link.url}
@@ -60,6 +63,7 @@
 							rel={link.url.startsWith('http') ? 'noopener noreferrer' : undefined}
 							class="contact-social-link"
 							aria-label={link.text}
+							use:reveal={j + 1}
 						>
 							{#if icon}
 								<BrandIcon name={icon} />
diff --git a/src/lib/components/sections/Djangokam.svelte b/src/lib/components/sections/Djangokam.svelte
index 69bfe67..3465b3a 100644
--- a/src/lib/components/sections/Djangokam.svelte
+++ b/src/lib/components/sections/Djangokam.svelte
@@ -1,8 +1,11 @@
 <script lang="ts">
 	// {@html} sur contenu first-party (JSON i18n du dépôt), aucune donnée utilisateur.
+	import FlagChip from '$lib/components/motion/FlagChip.svelte';
 	import KineticText from '$lib/components/motion/KineticText.svelte';
 	import ResponsiveImage from '$lib/components/ResponsiveImage.svelte';
 	import type { Bundle, Locale } from '$lib/i18n';
+	import { reveal } from '$lib/motion/reveal';
+	import { tilt } from '$lib/motion/tilt';
 	import { pictoFor } from './pictos';
 
 	import portrait from '$lib/assets/images/djangokam-portrait.webp?format=avif;webp&w=480;960&as=picture';
@@ -22,6 +25,7 @@
 <section id="djangokam" class="section">
 	<div class="container">
 		<p class="djangokam-surtitre">{t.djangokam.surtitre}</p>
+		<FlagChip />
 		<h2 class="section-title">
 			<KineticText as="span" text={t.djangokam.titre} />&#32;
 			<span class="accent-text"
@@ -30,16 +34,21 @@
 		</h2>
 		<p class="section-subtitle">{t.djangokam.accroche}</p>
 
-		<ResponsiveImage
-			picture={portrait}
-			alt="Portrait officiel de DJANGOKAM"
-			sizes="220px"
-			class="djangokam-portrait"
-		/>
+		<div class="djangokam-portrait-wrap" use:reveal={0}>
+			<ResponsiveImage
+				picture={portrait}
+				alt="Portrait officiel de DJANGOKAM"
+				sizes="220px"
+				class="djangokam-portrait"
+			/>
+		</div>
 
-		<blockquote class="djangokam-highlight">
-			{t.djangokam.message_cle}
-		</blockquote>
+		<!-- Masque vertical : la citation monte depuis le bas (dur-phrase) -->
+		<div class="djangokam-highlight-mask" use:reveal={1}>
+			<blockquote class="djangokam-highlight">
+				{t.djangokam.message_cle}
+			</blockquote>
+		</div>
 
 		<div class="djangokam-histoire-wrapper">
 			<div class="djangokam-histoire">
@@ -48,7 +57,7 @@
 				{/each}
 			</div>
 
-			<figure class="djangokam-duo">
+			<figure class="djangokam-duo" use:reveal={1} use:tilt>
 				<a href={t.djangokam.duo.url} target="_blank" rel="external noopener noreferrer">
 					<ResponsiveImage
 						picture={POCHETTES[t.djangokam.duo.image]}
@@ -61,9 +70,9 @@
 		</div>
 
 		<div class="djangokam-facts">
-			{#each t.djangokam.faits as fait (fait.chiffre)}
-				<div class="djangokam-fact-card">
-					<div class="djangokam-fact-icon">
+			{#each t.djangokam.faits as fait, i (fait.chiffre)}
+				<div class="djangokam-fact-card" use:reveal={i}>
+					<div class="djangokam-fact-icon reveal-pop" use:reveal={i + 1}>
 						<svg class="icon" aria-hidden="true"
 							><use href="/icons.svg#{pictoFor(fait.icon)}" /></svg
 						>
@@ -76,8 +85,8 @@
 		</div>
 
 		<div class="djangokam-clips">
-			{#each t.djangokam.clips as clip (clip.titre)}
-				<figure class="djangokam-clip">
+			{#each t.djangokam.clips as clip, i (clip.titre)}
+				<figure class="djangokam-clip" use:reveal={i} use:tilt>
 					<a href={clip.url} target="_blank" rel="external noopener noreferrer">
 						<ResponsiveImage
 							picture={POCHETTES[clip.image]}
@@ -147,9 +156,15 @@
 		margin: 1rem auto 2rem;
 	}
 
-	.djangokam-highlight {
+	/* Wrapper-masque de la citation : reprend les marges du blockquote
+	   (le masque doit rogner la translation, pas laisser les marges visibles) */
+	.djangokam-highlight-mask {
 		max-width: 800px;
 		margin: 2rem auto;
+		overflow: hidden;
+	}
+
+	.djangokam-highlight {
 		padding: 2rem;
 		text-align: left;
 		font-size: 1.1rem;
@@ -187,9 +202,33 @@
 	.djangokam-clip a {
 		color: inherit;
 		display: inline-block;
+		position: relative;
 		transition: transform var(--dur-tanbou) var(--ease-ka);
 	}
 
+	/* Reflet or discret qui pivote avec le tilt (--ry hérité de la figure) */
+	.djangokam-duo a::after,
+	.djangokam-clip a::after {
+		content: '';
+		position: absolute;
+		inset: 0;
+		border-radius: var(--radius-md);
+		background: linear-gradient(
+			calc(105deg + var(--ry, 0deg) * 4),
+			transparent 35%,
+			color-mix(in srgb, var(--or-oki) 70%, transparent) 50%,
+			transparent 65%
+		);
+		opacity: 0;
+		transition: opacity var(--dur-tanbou) var(--ease-ka);
+		pointer-events: none;
+	}
+
+	.djangokam-duo a:hover::after,
+	.djangokam-clip a:hover::after {
+		opacity: 0.15;
+	}
+
 	.djangokam-duo a:hover,
 	.djangokam-clip a:hover {
 		transform: translateY(-4px);
@@ -304,6 +343,43 @@
 		text-decoration: underline;
 	}
 
+	/* ── Chorégraphie d'entrée (même gate que le reveal global : html.js
+	   + motion autorisée — sinon tout est visible sans transition) ── */
+	@media (prefers-reduced-motion: no-preference) {
+		/* Pochettes : wipe clip-path (masque DOM) + tilt 3D piloté par use:tilt.
+		   La transformation de base du reveal est neutralisée : seul le
+		   clip-path révèle, la perspective reste disponible en permanence. */
+		:global(html.js) .djangokam-duo,
+		:global(html.js) .djangokam-clip {
+			opacity: 1;
+			transform: perspective(700px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
+			clip-path: inset(0 100% 0 0);
+			transition:
+				clip-path var(--dur-mesure) var(--ease-ka) var(--d, 0ms),
+				transform var(--dur-tanbou) var(--ease-ka);
+		}
+
+		:global(html.js) .djangokam-duo:global(.in),
+		:global(html.js) .djangokam-clip:global(.in) {
+			clip-path: inset(0 0 0 0);
+		}
+
+		/* Blockquote lore : le masque ne bouge pas, la citation monte */
+		:global(html.js) .djangokam-highlight-mask {
+			opacity: 1;
+			transform: none;
+		}
+
+		:global(html.js) .djangokam-highlight-mask .djangokam-highlight {
+			transform: translateY(100%);
+			transition: transform var(--dur-phrase) var(--ease-ka) var(--d, 0ms);
+		}
+
+		:global(html.js) .djangokam-highlight-mask:global(.in) .djangokam-highlight {
+			transform: translateY(0);
+		}
+	}
+
 	@media (max-width: 768px) {
 		:global(.djangokam-portrait) {
 			width: 160px;
diff --git a/src/lib/components/sections/Engagement.svelte b/src/lib/components/sections/Engagement.svelte
index 39c3458..2e491ae 100644
--- a/src/lib/components/sections/Engagement.svelte
+++ b/src/lib/components/sections/Engagement.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
+	import FlagChip from '$lib/components/motion/FlagChip.svelte';
 	import KineticText from '$lib/components/motion/KineticText.svelte';
 	import type { Bundle, Locale } from '$lib/i18n';
+	import { reveal } from '$lib/motion/reveal';
 	import { pictoFor } from './pictos';
 
 	let { t }: { t: Bundle; locale?: Locale } = $props();
@@ -8,6 +10,7 @@
 
 <section id="engagement" class="section">
 	<div class="container">
+		<FlagChip />
 		<h2 class="section-title">
 			<KineticText as="span" text={t.engagement.section_title} />&#32;
 			<span class="accent-text"
@@ -17,9 +20,9 @@
 		<p class="section-subtitle">{t.engagement.section_subtitle}</p>
 
 		<div class="engagement-options">
-			{#each t.engagement.cards as card (card.title)}
-				<div class="engagement-card">
-					<div class="engagement-icon">
+			{#each t.engagement.cards as card, i (card.title)}
+				<div class="engagement-card" use:reveal={i}>
+					<div class="engagement-icon reveal-pop" use:reveal={i + 1}>
 						<svg class="icon" aria-hidden="true"
 							><use href="/icons.svg#{pictoFor(card.icon)}" /></svg
 						>
diff --git a/src/lib/components/sections/Faq.svelte b/src/lib/components/sections/Faq.svelte
index ba29d05..12d3505 100644
--- a/src/lib/components/sections/Faq.svelte
+++ b/src/lib/components/sections/Faq.svelte
@@ -1,12 +1,15 @@
 <script lang="ts">
+	import FlagChip from '$lib/components/motion/FlagChip.svelte';
 	import KineticText from '$lib/components/motion/KineticText.svelte';
 	import type { Bundle, Locale } from '$lib/i18n';
+	import { reveal } from '$lib/motion/reveal';
 
 	let { t }: { t: Bundle; locale?: Locale } = $props();
 </script>
 
 <section id="faq" class="section">
 	<div class="container">
+		<FlagChip />
 		<h2 class="section-title">
 			<KineticText as="span" text={t.faq.section_title} />&#32;
 			<span class="accent-text"
@@ -16,8 +19,8 @@
 		<p class="section-subtitle">{t.faq.section_subtitle}</p>
 
 		<div class="faq-container">
-			{#each t.faq.items as item (item.question)}
-				<details class="faq-item">
+			{#each t.faq.items as item, i (item.question)}
+				<details class="faq-item" use:reveal={i}>
 					<summary class="faq-question">
 						<span>{item.question}</span>
 						<span class="faq-icon" aria-hidden="true">+</span>
diff --git a/src/lib/components/sections/Fediverse.svelte b/src/lib/components/sections/Fediverse.svelte
index 0777542..d76c67e 100644
--- a/src/lib/components/sections/Fediverse.svelte
+++ b/src/lib/components/sections/Fediverse.svelte
@@ -1,4 +1,5 @@
 <script lang="ts">
+	import FlagChip from '$lib/components/motion/FlagChip.svelte';
 	import KineticText from '$lib/components/motion/KineticText.svelte';
 	import type { Bundle, Locale } from '$lib/i18n';
 	import HostingVillage from './HostingVillage.svelte';
@@ -8,6 +9,7 @@
 
 <section id="services-libres" class="section">
 	<div class="container">
+		<FlagChip />
 		<h2 class="section-title">
 			<KineticText as="span" text={t.services.section_title} />&#32;
 			<span class="accent-text"
diff --git a/src/lib/components/sections/Hero.svelte b/src/lib/components/sections/Hero.svelte
index 77f7491..8774dc0 100644
--- a/src/lib/components/sections/Hero.svelte
+++ b/src/lib/components/sections/Hero.svelte
@@ -6,9 +6,19 @@
 </script>
 
 <section class="hero">
+	<div class="hero-bg" aria-hidden="true">
+		<div class="hero-watermark"></div>
+		<div class="hero-stripes s1"></div>
+		<div class="hero-stripes s2"></div>
+	</div>
 	<div class="hero-content container">
-		<h1>ORGANISATION KA</h1>
-		<h2 class="hero-subtitle">INTERNATIONALE</h2>
+		<h1 class="hero-title">
+			<span class="mask"><span class="w w1">ORGANISATION</span></span>
+			<span class="mask"><span class="w w2">KA</span></span>
+		</h1>
+		<h2 class="hero-subtitle">
+			<span class="mask"><span class="w w3">INTERNATIONALE</span></span>
+		</h2>
 		<p class="hero-tagline">{t.site.tagline}</p>
 		<div class="hero-tags">
 			{#each t.hero.tags as rawTag (rawTag)}
@@ -40,8 +50,13 @@
 		border-bottom: 1px solid var(--line);
 	}
 
-	.hero::before {
-		content: '';
+	.hero-bg {
+		position: absolute;
+		inset: 0;
+		pointer-events: none;
+	}
+
+	.hero-watermark {
 		position: absolute;
 		top: 0;
 		right: -5%;
@@ -49,29 +64,110 @@
 		height: 100%;
 		background: url('/images/logo-512x512.png') center / contain no-repeat;
 		opacity: 0.05;
-		pointer-events: none;
+		will-change: transform;
+	}
+
+	/* Filets drapeau en diagonale, très basse opacité (profondeur) */
+	.hero-stripes {
+		position: absolute;
+		left: -50%;
+		width: 200%;
+		background: linear-gradient(
+			to right,
+			transparent 0 10%,
+			var(--or-oki) 10% 40%,
+			var(--vert-oki) 40% 65%,
+			var(--rouge-oki) 65% 85%,
+			transparent 85% 100%
+		);
+		transform: rotate(-12deg);
+		will-change: transform;
+	}
+
+	.hero-stripes.s1 {
+		top: 22%;
+		height: 3px;
+		opacity: 0.1;
+	}
+
+	.hero-stripes.s2 {
+		bottom: 18%;
+		height: 2px;
+		opacity: 0.07;
 	}
 
 	.hero-content {
 		position: relative;
 		z-index: 2;
 		width: 100%;
+		will-change: transform, opacity;
 	}
 
 	h1 {
-		font-size: clamp(2.2rem, 6vw, 4rem);
+		font-size: clamp(3rem, 9vw, 7rem);
 		font-weight: 900;
 		margin-bottom: 0.4rem;
-		line-height: 1.05;
+		line-height: 0.95;
 	}
 
 	.hero-subtitle {
-		font-size: clamp(1.4rem, 4vw, 2.2rem);
+		font-size: clamp(1.6rem, 4.5vw, 3rem);
 		font-weight: 700;
 		margin-bottom: 1.25rem;
 		color: var(--or-oki);
 	}
 
+	/* Reveal masqué au chargement (pattern titrage des sites primés) :
+	   uniquement si JS actif et motion autorisée — sinon texte visible */
+	.mask {
+		display: inline-block;
+		overflow: hidden;
+		vertical-align: bottom;
+	}
+
+	.w {
+		display: inline-block;
+		will-change: transform;
+	}
+
+	@media (prefers-reduced-motion: no-preference) {
+		:global(html.js) .w {
+			transform: translateY(110%);
+			animation: word-rise var(--dur-phrase) var(--ease-ka) forwards;
+		}
+
+		:global(html.js) .w1 {
+			animation-delay: 150ms;
+		}
+
+		:global(html.js) .w2 {
+			animation-delay: 270ms;
+		}
+
+		:global(html.js) .w3 {
+			animation-delay: 510ms;
+		}
+
+		/* Si la cérémonie d'intro joue, le titrage attend sa sortie */
+		:global(html.js.intro-pending) .w1 {
+			animation-delay: 1400ms;
+		}
+
+		:global(html.js.intro-pending) .w2 {
+			animation-delay: 1520ms;
+		}
+
+		:global(html.js.intro-pending) .w3 {
+			animation-delay: 1760ms;
+		}
+	}
+
+	@keyframes word-rise {
+		to {
+			transform: translateY(0);
+		}
+	}
+
 	.hero-tagline {
 		font-size: 1.4rem;
 		margin-bottom: 1.5rem;
@@ -82,7 +178,7 @@
 	.hero-description {
 		font-size: 1.2rem;
 		margin-bottom: 2rem;
-		opacity: 0.85;
+		color: var(--muted);
 		max-width: 680px;
 	}
 
@@ -105,6 +201,61 @@
 		flex-wrap: wrap;
 	}
 
+	/* Parallaxe et sortie scrubée : scroll-driven animations natives,
+	   enhancement progressif — sans support, le hero reste statique */
+	@supports (animation-timeline: scroll()) {
+		@media (prefers-reduced-motion: no-preference) {
+			.hero-watermark {
+				animation: wm-drift linear both;
+				animation-timeline: scroll(root);
+				animation-range: 0 100vh;
+			}
+
+			.hero-stripes.s1 {
+				animation: s1-drift linear both;
+				animation-timeline: scroll(root);
+				animation-range: 0 100vh;
+			}
+
+			.hero-stripes.s2 {
+				animation: s2-drift linear both;
+				animation-timeline: scroll(root);
+				animation-range: 0 100vh;
+			}
+
+			.hero-content {
+				animation: hero-exit linear both;
+				animation-timeline: scroll(root);
+				animation-range: 0 75vh;
+			}
+		}
+	}
+
+	@keyframes wm-drift {
+		to {
+			transform: translateY(14%) scale(1.06);
+		}
+	}
+
+	@keyframes s1-drift {
+		to {
+			transform: rotate(-12deg) translateX(-8%);
+		}
+	}
+
+	@keyframes s2-drift {
+		to {
+			transform: rotate(-12deg) translateX(6%);
+		}
+	}
+
+	@keyframes hero-exit {
+		to {
+			transform: translateY(-8vh);
+			opacity: 0.2;
+		}
+	}
+
 	@media (max-width: 768px) {
 		.cta-buttons {
 			flex-direction: column;
diff --git a/src/lib/components/sections/Hosting.svelte b/src/lib/components/sections/Hosting.svelte
index e35c50b..4f46ce7 100644
--- a/src/lib/components/sections/Hosting.svelte
+++ b/src/lib/components/sections/Hosting.svelte
@@ -1,12 +1,15 @@
 <script lang="ts">
+	import FlagChip from '$lib/components/motion/FlagChip.svelte';
 	import KineticText from '$lib/components/motion/KineticText.svelte';
 	import type { Bundle, Locale } from '$lib/i18n';
+	import { reveal } from '$lib/motion/reveal';
 
 	let { t }: { t: Bundle; locale?: Locale } = $props();
 </script>
 
 <section id="hebergement" class="section">
 	<div class="container">
+		<FlagChip />
 		<h2 class="section-title">
 			<KineticText as="span" text={t.hosting.section_title} />&#32;
 			<span class="accent-text"
@@ -15,7 +18,7 @@
 		</h2>
 		<p class="section-subtitle">{t.hosting.section_subtitle}</p>
 
-		<div class="hosting-banner">
+		<div class="hosting-banner" use:reveal={0}>
 			<h3>{t.hosting.banner_title}</h3>
 			<p>{t.hosting.banner_text}</p>
 
@@ -33,8 +36,8 @@
 			<h3>{t.hosting.offerings_title}</h3>
 
 			<div class="offer-cards">
-				{#each t.hosting.offer_cards as card (card.title)}
-					<div class="offer-card{card.modifier ? ` offer-card--${card.modifier}` : ''}">
+				{#each t.hosting.offer_cards as card, i (card.title)}
+					<div class="offer-card{card.modifier ? ` offer-card--${card.modifier}` : ''}" use:reveal={i}>
 						<h4>{card.title}</h4>
 						{#if card.intro}
 							<p class="offer-intro">{card.intro}</p>
@@ -50,7 +53,7 @@
 			</div>
 		</div>
 
-		<div class="hosting-note">
+		<div class="hosting-note" use:reveal={3}>
 			<h4>{t.hosting.note_title}</h4>
 			<p>{t.hosting.note_intro}</p>
 			<ul>
@@ -60,7 +63,7 @@
 			</ul>
 		</div>
 
-		<div class="hosting-why">
+		<div class="hosting-why" use:reveal={4}>
 			<h4>{t.hosting.why_title}</h4>
 			<p>{t.hosting.why_text}</p>
 			<a href="#contact" class="btn btn-solid">{t.hosting.why_cta} →</a>
diff --git a/src/lib/components/sections/HostingVillage.svelte b/src/lib/components/sections/HostingVillage.svelte
index b1e8f1b..77dfbe6 100644
--- a/src/lib/components/sections/HostingVillage.svelte
+++ b/src/lib/components/sections/HostingVillage.svelte
@@ -1,5 +1,6 @@
 <script lang="ts">
 	import type { Bundle, Locale } from '$lib/i18n';
+	import { reveal } from '$lib/motion/reveal';
 
 	/**
 	 * HostingVillage — scène SVG isométrique « village créole ».
@@ -252,8 +253,8 @@
 
 	<!-- ── Fallback : grille de cards (miroir sémantique de la scène) ── -->
 	<ul class="village-fallback" role="list">
-		{#each items as item (item.name)}
-			<li class="card vf-card">
+		{#each items as item, i (item.name)}
+			<li class="card vf-card" use:reveal={i}>
 				<div class="vf-head">
 					<h3>{item.name}</h3>
 					<span class="tag">{item.platform}</span>
diff --git a/src/lib/components/sections/Mission.svelte b/src/lib/components/sections/Mission.svelte
index 23251d6..95b502c 100644
--- a/src/lib/components/sections/Mission.svelte
+++ b/src/lib/components/sections/Mission.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
+	import FlagChip from '$lib/components/motion/FlagChip.svelte';
 	import KineticText from '$lib/components/motion/KineticText.svelte';
 	import type { Bundle, Locale } from '$lib/i18n';
+	import { reveal } from '$lib/motion/reveal';
 	import { pictoFor } from './pictos';
 
 	let { t }: { t: Bundle; locale?: Locale } = $props();
@@ -8,6 +10,7 @@
 
 <section id="mission" class="section">
 	<div class="container">
+		<FlagChip />
 		<h2 class="section-title">
 			<KineticText as="span" text={t.mission.section_title} />&#32;
 			<span class="accent-text"
@@ -18,9 +21,9 @@
 		<p class="mission-text mission-text--secondary">{t.mission.paragraph_secondary}</p>
 
 		<div class="values-grid">
-			{#each t.values as value (value.title)}
-				<div class="value-card">
-					<div class="value-icon">
+			{#each t.values as value, i (value.title)}
+				<div class="value-card" use:reveal={i}>
+					<div class="value-icon reveal-pop" use:reveal={i + 1}>
 						<svg class="icon" aria-hidden="true"
 							><use href="/icons.svg#{pictoFor(value.icon)}" /></svg
 						>
diff --git a/src/lib/components/sections/Partners.svelte b/src/lib/components/sections/Partners.svelte
index 4619975..14f6ab4 100644
--- a/src/lib/components/sections/Partners.svelte
+++ b/src/lib/components/sections/Partners.svelte
@@ -1,7 +1,9 @@
 <script lang="ts">
+	import FlagChip from '$lib/components/motion/FlagChip.svelte';
 	import KineticText from '$lib/components/motion/KineticText.svelte';
 	import ResponsiveImage from '$lib/components/ResponsiveImage.svelte';
 	import type { Bundle, Locale } from '$lib/i18n';
+	import { reveal } from '$lib/motion/reveal';
 
 	import joukawouve from '$lib/assets/images/joukawouve.png?format=avif;webp;png&w=320;640&as=picture';
 	import akv from '$lib/assets/images/akv.png?format=avif;webp;png&w=320;640&as=picture';
@@ -18,6 +20,7 @@
 
 <section id="partenaires" class="section">
 	<div class="container">
+		<FlagChip />
 		<h2 class="section-title">
 			<KineticText as="span" text={t.partners.section_title} />&#32;
 			<span class="accent-text"
@@ -27,8 +30,8 @@
 		<p class="section-subtitle">{t.partners.section_subtitle}</p>
 
 		<div class="partners-grid">
-			{#each t.partners.items as partner (partner.name)}
-				<div class="partner-card">
+			{#each t.partners.items as partner, i (partner.name)}
+				<div class="partner-card" use:reveal={i}>
 					<div class="partner-logo-container">
 						<ResponsiveImage
 							picture={LOGOS[partner.logo]}
diff --git a/src/lib/components/sections/Projects.svelte b/src/lib/components/sections/Projects.svelte
index 177406b..1a96639 100644
--- a/src/lib/components/sections/Projects.svelte
+++ b/src/lib/components/sections/Projects.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
+	import FlagChip from '$lib/components/motion/FlagChip.svelte';
 	import KineticText from '$lib/components/motion/KineticText.svelte';
 	import type { Bundle, Locale } from '$lib/i18n';
+	import { reveal } from '$lib/motion/reveal';
 	import { pictoFor } from './pictos';
 
 	let { t }: { t: Bundle; locale?: Locale } = $props();
@@ -8,6 +10,7 @@
 
 <section id="projets" class="section">
 	<div class="container">
+		<FlagChip />
 		<h2 class="section-title">
 			<KineticText as="span" text={t.projects.section_title} />&#32;
 			<span class="accent-text"
@@ -16,9 +19,15 @@
 		</h2>
 
 		<div class="project-cards">
-			{#each t.projects.items as item (item.name)}
-				<a href={item.url} target="_blank" rel="external noopener noreferrer" class="project-card">
-					<div class="project-icon">
+			{#each t.projects.items as item, i (item.name)}
+				<a
+					href={item.url}
+					target="_blank"
+					rel="external noopener noreferrer"
+					class="project-card"
+					use:reveal={i}
+				>
+					<div class="project-icon reveal-pop" use:reveal={i + 1}>
 						<svg class="icon" aria-hidden="true"
 							><use href="/icons.svg#{pictoFor(item.icon)}" /></svg
 						>
diff --git a/src/lib/components/sections/Publics.svelte b/src/lib/components/sections/Publics.svelte
index 58fe269..5a287f2 100644
--- a/src/lib/components/sections/Publics.svelte
+++ b/src/lib/components/sections/Publics.svelte
@@ -1,6 +1,8 @@
 <script lang="ts">
+	import FlagChip from '$lib/components/motion/FlagChip.svelte';
 	import KineticText from '$lib/components/motion/KineticText.svelte';
 	import type { Bundle, Locale } from '$lib/i18n';
+	import { reveal } from '$lib/motion/reveal';
 	import { pictoFor } from './pictos';
 
 	let { t }: { t: Bundle; locale?: Locale } = $props();
@@ -8,6 +10,7 @@
 
 <section id="solutions" class="section">
 	<div class="container">
+		<FlagChip />
 		<h2 class="section-title">
 			<KineticText as="span" text={t.publics.section_title} />&#32;
 			<span class="accent-text"
@@ -17,9 +20,9 @@
 		<p class="section-subtitle">{t.publics.section_subtitle}</p>
 
 		<div class="publics-grid">
-			{#each t.publics.items as item (item.title)}
-				<div class="public-card">
-					<div class="public-icon">
+			{#each t.publics.items as item, i (item.title)}
+				<div class="public-card" use:reveal={i}>
+					<div class="public-icon reveal-pop" use:reveal={i + 1}>
 						<svg class="icon" aria-hidden="true"
 							><use href="/icons.svg#{pictoFor(item.icon)}" /></svg
 						>
@@ -41,7 +44,7 @@
 			{/each}
 		</div>
 
-		<div class="publics-footer">
+		<div class="publics-footer" use:reveal={3}>
 			<p class="publics-footer-lead">{t.publics.footer_line1}</p>
 			<p>{t.publics.footer_line2}</p>
 		</div>
diff --git a/src/lib/motion/reveal.ts b/src/lib/motion/reveal.ts
new file mode 100644
index 0000000..ed92188
--- /dev/null
+++ b/src/lib/motion/reveal.ts
@@ -0,0 +1,42 @@
+import { syncopatedDelay } from './tokens';
+
+/**
+ * Action `use:reveal` — reveal syncopé à l'entrée dans le viewport.
+ *
+ * L'état caché initial n'existe que si JS est actif (classe `js` sur
+ * <html>, posée par theme.js) ET sans prefers-reduced-motion (media
+ * query dans base.css) : sans JS ou en reduced-motion, le contenu est
+ * intégralement visible.
+ *
+ * @param index position dans la cascade — délai gwoka 3+3+2 (charte §3)
+ */
+export function reveal(node: HTMLElement, index: number = 0) {
+	function apply(i: number) {
+		node.dataset.reveal = '';
+		node.style.setProperty('--d', `${syncopatedDelay(i)}ms`);
+	}
+
+	apply(index);
+
+	const observer = new IntersectionObserver(
+		(entries) => {
+			for (const entry of entries) {
+				if (entry.isIntersecting) {
+					node.classList.add('in');
+					observer.disconnect();
+				}
+			}
+		},
+		{ threshold: 0.15, rootMargin: '0px 0px -5% 0px' }
+	);
+	observer.observe(node);
+
+	return {
+		update(i: number) {
+			apply(i);
+		},
+		destroy() {
+			observer.disconnect();
+		}
+	};
+}
diff --git a/src/lib/motion/scroll.ts b/src/lib/motion/scroll.ts
new file mode 100644
index 0000000..a778819
--- /dev/null
+++ b/src/lib/motion/scroll.ts
@@ -0,0 +1,43 @@
+import type Lenis from 'lenis';
+import { prefersReducedMotion } from './tokens';
+
+/**
+ * SmoothScrollProvider — une seule instance Lenis (playbook P1),
+ * cadencée par le ticker GSAP unique. Gate reduced-motion :
+ * pas de Lenis si l'utilisateur préfère réduire les animations.
+ */
+let lenis: Lenis | null = null;
+
+/** Initialise Lenis + ticker GSAP. Retourne la fonction de cleanup. */
+export async function initSmoothScroll(): Promise<() => void> {
+	if (prefersReducedMotion()) return () => {};
+
+	const [{ default: LenisClass }, { gsap }] = await Promise.all([import('lenis'), import('gsap')]);
+
+	lenis = new LenisClass({ lerp: 0.1 });
+	const raf = (time: number) => lenis?.raf(time * 1000);
+	gsap.ticker.add(raf);
+	gsap.ticker.lagSmoothing(0);
+
+	return () => {
+		gsap.ticker.remove(raf);
+		lenis?.destroy();
+		lenis = null;
+	};
+}
+
+export function getLenis(): Lenis | null {
+	return lenis;
+}
+
+/** Scroll doux vers une ancre de la page courante (compense la nav fixe). */
+export function scrollToAnchor(hash: string): boolean {
+	const target = document.querySelector(hash);
+	if (!target) return false;
+	if (lenis) {
+		lenis.scrollTo(target as HTMLElement, { offset: -80 });
+	} else {
+		(target as HTMLElement).scrollIntoView({ behavior: 'smooth', block: 'start' });
+	}
+	return true;
+}
diff --git a/src/lib/motion/tilt.ts b/src/lib/motion/tilt.ts
new file mode 100644
index 0000000..437931e
--- /dev/null
+++ b/src/lib/motion/tilt.ts
@@ -0,0 +1,42 @@
+import { prefersReducedMotion } from './tokens';
+
+/**
+ * Action `use:tilt` — tilt 3D piloté par le pointeur (transform only).
+ * Variables `--rx` / `--ry` à consommer dans le CSS du composant :
+ * `transform: perspective(700px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg))`.
+ * Désactivé sur tactile (pointer: coarse) et en reduced-motion.
+ * Écriture dans des variables CSS via rAF — jamais d'état réactif par frame.
+ */
+export function tilt(node: HTMLElement, max: number = 6) {
+	if (prefersReducedMotion() || window.matchMedia('(pointer: coarse)').matches) return;
+
+	let raf = 0;
+
+	function onMove(event: PointerEvent) {
+		const rect = node.getBoundingClientRect();
+		const px = (event.clientX - rect.left) / rect.width - 0.5;
+		const py = (event.clientY - rect.top) / rect.height - 0.5;
+		cancelAnimationFrame(raf);
+		raf = requestAnimationFrame(() => {
+			node.style.setProperty('--ry', `${(px * max).toFixed(2)}deg`);
+			node.style.setProperty('--rx', `${(-py * max).toFixed(2)}deg`);
+		});
+	}
+
+	function onLeave() {
+		cancelAnimationFrame(raf);
+		node.style.setProperty('--rx', '0deg');
+		node.style.setProperty('--ry', '0deg');
+	}
+
+	node.addEventListener('pointermove', onMove);
+	node.addEventListener('pointerleave', onLeave);
+
+	return {
+		destroy() {
+			cancelAnimationFrame(raf);
+			node.removeEventListener('pointermove', onMove);
+			node.removeEventListener('pointerleave', onLeave);
+		}
+	};
+}
diff --git a/src/lib/styles/base.css b/src/lib/styles/base.css
index 6c3297f..d48c47d 100644
--- a/src/lib/styles/base.css
+++ b/src/lib/styles/base.css
@@ -16,6 +16,39 @@ html {
 	scroll-behavior: smooth;
 }
 
+/* Lenis pose .lenis sur <html> : sa glisse prend le relais du smooth natif */
+html.lenis {
+	scroll-behavior: auto;
+}
+
+/* États initiaux des reveals : uniquement si JS actif ET motion autorisée —
+   sans JS ou en reduced-motion, tout le contenu est visible (playbook §6) */
+@media (prefers-reduced-motion: no-preference) {
+	html.js [data-reveal] {
+		opacity: 0;
+		transform: translateY(28px);
+		transition:
+			opacity var(--dur-mesure) var(--ease-ka) var(--d, 0ms),
+			transform var(--dur-mesure) var(--ease-ka) var(--d, 0ms);
+	}
+
+	html.js [data-reveal].in {
+		opacity: 1;
+		transform: translateY(0);
+	}
+
+	/* Variante « pop » des pictogrammes : scale(0.6) → 1 au lieu de la
+	   translation (même gate, même délai syncopé --d, même transition) */
+	html.js [data-reveal].reveal-pop {
+		transform: scale(0.6);
+		transform-origin: center;
+	}
+
+	html.js [data-reveal].reveal-pop.in {
+		transform: scale(1);
+	}
+}
+
 body {
 	font-family: var(--font-body);
 	background: var(--noir-oki);
@@ -53,10 +86,11 @@ a:hover {
 	color: var(--or-clair);
 }
 
-/* Liens dans le corps de texte : distinguables autrement que par la couleur (WCAG) */
-p a:not(.btn),
-li a:not(.btn),
-blockquote a:not(.btn) {
+/* Liens dans le corps de texte : distinguables autrement que par la couleur (WCAG).
+   Limité au <main> : la nav et le footer ont leurs propres conventions. */
+main p a:not(.btn),
+main li a:not(.btn),
+main blockquote a:not(.btn) {
 	text-decoration: underline;
 	text-underline-offset: 0.15em;
 }
@@ -125,6 +159,9 @@ section[id] {
 
 /* ── Boutons : Archivo 700, uppercase, bordure 2 px, angles nets ── */
 .btn {
+	position: relative;
+	isolation: isolate;
+	overflow: hidden;
 	display: inline-block;
 	font-family: var(--font-display);
 	font-weight: 700;
@@ -137,24 +174,42 @@ section[id] {
 	color: var(--or-oki);
 	cursor: pointer;
 	transition:
-		background var(--dur-tanbou) var(--ease-ka),
 		color var(--dur-tanbou) var(--ease-ka),
+		border-color var(--dur-tanbou) var(--ease-ka),
 		transform var(--dur-tanbou) var(--ease-ka);
 }
 
-.btn:hover {
+/* Balayage or qui glisse depuis la gauche (hover craft) */
+.btn::after {
+	content: '';
+	position: absolute;
+	inset: 0;
+	z-index: -1;
 	background: var(--or-oki);
+	transform: scaleX(0);
+	transform-origin: left center;
+	transition: transform var(--dur-tanbou) var(--ease-syncope);
+}
+
+.btn:hover {
 	color: var(--noir-oki);
 	transform: translateY(-2px);
 }
 
+.btn:hover::after {
+	transform: scaleX(1);
+}
+
 .btn-solid {
 	background: var(--or-oki);
 	color: var(--noir-oki);
 }
 
-.btn-solid:hover {
+.btn-solid::after {
 	background: var(--or-clair);
+}
+
+.btn-solid:hover {
 	border-color: var(--or-clair);
 }
 
diff --git a/src/routes/+layout.svelte b/src/routes/+layout.svelte
index dc0fff1..5da49db 100644
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -4,10 +4,13 @@
 
 	import { afterNavigate, onNavigate } from '$app/navigation';
 	import { page } from '$app/state';
+	import { onMount } from 'svelte';
 	import Footer from '$lib/components/Footer.svelte';
 	import Nav from '$lib/components/Nav.svelte';
+	import IntroLoader from '$lib/components/motion/IntroLoader.svelte';
 	import ScrollProgressBar from '$lib/components/motion/ScrollProgressBar.svelte';
 	import { getBundle, localeFromPath } from '$lib/i18n';
+	import { initSmoothScroll, scrollToAnchor } from '$lib/motion/scroll';
 	import { prefersReducedMotion } from '$lib/motion/tokens';
 
 	let { children } = $props();
@@ -34,9 +37,36 @@
 		if (to?.url.hash) return;
 		document.getElementById('contenu')?.focus({ preventScroll: true });
 	});
+
+	onMount(() => {
+		let cleanupScroll: (() => void) | undefined;
+		let destroyed = false;
+		initSmoothScroll().then((fn) => {
+			if (destroyed) fn();
+			else cleanupScroll = fn;
+		});
+
+		// Ancres de la page courante : glisse Lenis (playbook P1)
+		function onClick(event: MouseEvent) {
+			const anchor = (event.target as HTMLElement).closest('a');
+			const href = anchor?.getAttribute('href');
+			if (href?.startsWith('#') && scrollToAnchor(href)) {
+				event.preventDefault();
+				history.replaceState(null, '', href);
+			}
+		}
+		document.addEventListener('click', onClick);
+
+		return () => {
+			destroyed = true;
+			cleanupScroll?.();
+			document.removeEventListener('click', onClick);
+		};
+	});
 </script>
 
 <a href="#contenu" class="skip-link">{locale === 'en' ? 'Skip to content' : 'Aller au contenu'}</a>
+<IntroLoader />
 <ScrollProgressBar />
 <Nav {t} {locale} />
 <main id="contenu" tabindex="-1">
diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index 8ca30a9..8bc661b 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -1,5 +1,6 @@
 <script lang="ts">
 	import Seo from '$lib/components/Seo.svelte';
+	import Marquee from '$lib/components/motion/Marquee.svelte';
 	import Clients from '$lib/components/sections/Clients.svelte';
 	import Contact from '$lib/components/sections/Contact.svelte';
 	import Djangokam from '$lib/components/sections/Djangokam.svelte';
@@ -29,5 +30,6 @@
 <Clients {t} locale="fr" />
 <Fediverse {t} locale="fr" />
 <Faq {t} locale="fr" />
+<Marquee {t} />
 <Engagement {t} locale="fr" />
 <Contact {t} locale="fr" />
diff --git a/src/routes/en/+page.svelte b/src/routes/en/+page.svelte
index d41a297..6389b8a 100644
--- a/src/routes/en/+page.svelte
+++ b/src/routes/en/+page.svelte
@@ -1,5 +1,6 @@
 <script lang="ts">
 	import Seo from '$lib/components/Seo.svelte';
+	import Marquee from '$lib/components/motion/Marquee.svelte';
 	import Clients from '$lib/components/sections/Clients.svelte';
 	import Contact from '$lib/components/sections/Contact.svelte';
 	import Djangokam from '$lib/components/sections/Djangokam.svelte';
@@ -29,5 +30,6 @@
 <Clients {t} locale="en" />
 <Fediverse {t} locale="en" />
 <Faq {t} locale="en" />
+<Marquee {t} />
 <Engagement {t} locale="en" />
 <Contact {t} locale="en" />
diff --git a/static/theme.js b/static/theme.js
index b5516b9..faaf0f6 100644
--- a/static/theme.js
+++ b/static/theme.js
@@ -1,4 +1,14 @@
 (function() {
+    // Marqueur JS actif : les états initiaux cachés des animations
+    // (reveal, loader) ne s'appliquent que si JavaScript tourne.
+    document.documentElement.classList.add('js');
+
+    // Cérémonie d'entrée : première visite de la session seulement,
+    // jamais si l'utilisateur préfère réduire les animations.
+    if (!sessionStorage.getItem('oki-intro') && !window.matchMedia('(prefers-reduced-motion: reduce)').matches) {
+        document.documentElement.classList.add('intro-pending');
+    }
+
     // Récupérer le thème stocké ou détecter le thème système
     const storedTheme = localStorage.getItem('oki-theme');
     const systemPrefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;