fix(vitrine): hero comme le login app (river_logo + paper, sans dégradé vert).

static/css/style.css

@@ -229,78 +229,62 @@ body {
     text-decoration: underline;
 }
 
-/* Hero — desktop large (2 colonnes), mobile compact */
+/*
+  Hero aligné sur le login app :
+  paper2 (body) + river_logo_desktop (rivière + wordmark ensemble).
+  Pas de dégradé coloré.
+*/
 .hero {
     position: relative;
     min-height: calc(100vh - var(--header-h));
     min-height: calc(100dvh - var(--header-h));
-    display: flex;
-    flex-direction: column;
+    display: grid;
+    grid-template-columns: 1fr;
     align-items: center;
-    justify-content: center;
+    gap: 1.5rem;
     overflow: hidden;
-    padding: 2rem 1.25rem 5rem;
+    padding: 1.5rem 1.25rem 2.5rem;
+    max-width: var(--max);
+    margin: 0 auto;
+    width: 100%;
+    box-sizing: border-box;
 }
-.hero__bg {
-    position: absolute;
-    inset: 0;
-    background: linear-gradient(180deg, rgba(247,241,232,0.55) 0%, rgba(247,241,232,0.15) 45%, rgba(174,225,205,0.28) 100%);
-    pointer-events: none;
+.hero__visual {
+    position: relative;
+    z-index: 0;
+    animation: heroIn 0.9s var(--ease) both;
+}
+.hero__brand-img {
+    display: block;
+    width: 100%;
+    height: auto;
+    max-height: min(72vh, 38rem);
+    object-fit: contain;
+    object-position: left center;
 }
 .hero__copy {
     position: relative;
     z-index: 1;
     text-align: center;
-    width: min(52rem, 92vw);
-    animation: heroIn 0.8s var(--ease) both;
-}
-.hero__river {
-    position: absolute;
-    left: 50%;
-    bottom: -4%;
-    width: min(120vw, 72rem);
-    transform: translateX(-50%);
-    opacity: 0.95;
-    pointer-events: none;
-    z-index: 0;
-    animation: riverIn 1.1s var(--ease) both;
-}
-.hero__river img {
-    width: 100%;
-    height: auto;
-    display: block;
-    filter: drop-shadow(0 8px 24px rgba(42, 38, 34, 0.12));
-}
-@keyframes riverIn {
-    from { opacity: 0; transform: translateX(-50%) translateY(1.5rem); }
-    to { opacity: 0.95; transform: translateX(-50%) translateY(0); }
+    animation: heroIn 0.8s var(--ease) 0.08s both;
 }
 @keyframes heroIn {
-    from { opacity: 0; transform: translateY(0.75rem); }
+    from { opacity: 0; transform: translateY(0.6rem); }
     to { opacity: 1; transform: translateY(0); }
 }
-.hero__brand {
-    font-family: var(--font-brand);
-    font-size: clamp(2.4rem, 1.5rem + 3.5vw, 4.25rem);
-    font-weight: 700;
-    margin: 0 0 0.85rem;
-    letter-spacing: -0.03em;
-    color: var(--ink);
-}
 .hero__title {
     font-family: var(--font-brand);
-    font-size: clamp(1.45rem, 1.1rem + 1.8vw, 2.35rem);
+    font-size: clamp(1.45rem, 1.1rem + 1.6vw, 2.4rem);
     font-weight: 600;
     line-height: 1.22;
-    margin: 0 auto 0.85rem;
-    max-width: 28ch;
+    margin: 0 0 0.75rem;
+    color: var(--ink);
 }
 .hero__tagline {
-    margin: 0 auto 1.75rem;
+    margin: 0 0 1.5rem;
     color: var(--ink-soft);
-    font-size: clamp(1.05rem, 0.95rem + 0.4vw, 1.25rem);
+    font-size: clamp(1.02rem, 0.95rem + 0.35vw, 1.2rem);
     line-height: 1.45;
-    max-width: 38rem;
 }
 .hero__actions {
     display: flex;
@@ -310,66 +294,50 @@ body {
     margin: 0;
 }
 
+/* Desktop : comme le login — image rivière+logo à gauche, message à droite */
 @media (min-width: 64rem) {
     .hero {
-        display: grid;
-        grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
+        grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
+        column-gap: 2rem;
+        padding: 2rem 2.5rem 3rem;
         align-items: center;
-        column-gap: 3rem;
-        max-width: var(--max);
-        margin: 0 auto;
-        width: 100%;
-        padding: 3.5rem 2.5rem 4rem;
-        box-sizing: border-box;
     }
-    .hero__bg { border-radius: 0; }
+    .hero__visual {
+        align-self: stretch;
+        display: flex;
+        align-items: center;
+    }
+    .hero__brand-img {
+        max-height: calc(100vh - var(--header-h) - 4rem);
+        width: 100%;
+    }
     .hero__copy {
-        width: auto;
-        max-width: none;
         text-align: left;
-        justify-self: stretch;
+        padding-right: 1rem;
     }
     .hero__title {
-        margin: 0 0 0.85rem;
-        max-width: none;
-        font-size: clamp(2rem, 1.5rem + 1.2vw, 2.85rem);
+        font-size: clamp(1.85rem, 1.4rem + 1.1vw, 2.6rem);
+        margin-bottom: 1rem;
     }
     .hero__tagline {
-        margin: 0 0 1.5rem;
-        max-width: 36rem;
+        margin-bottom: 1.75rem;
+        max-width: 28rem;
     }
     .hero__actions { justify-content: flex-start; }
-    .hero__river {
-        position: relative;
-        left: auto;
-        bottom: auto;
-        width: 100%;
-        max-width: 34rem;
-        transform: none;
-        justify-self: end;
-        animation: riverInDesk 1.1s var(--ease) both;
-    }
-    @keyframes riverInDesk {
-        from { opacity: 0; transform: translateX(1.25rem); }
-        to { opacity: 0.95; transform: none; }
-    }
 }
 
 @media (max-width: 40rem) {
     .hero {
         min-height: auto;
-        padding: 1.75rem 1.1rem 3.5rem;
-        align-items: flex-start;
+        padding: 1rem 1rem 2rem;
+        gap: 1rem;
     }
-    .hero__copy { width: 100%; }
-    .hero__river {
-        width: 130vw;
-        bottom: -8%;
-        opacity: 0.75;
+    .hero__brand-img {
+        max-height: 48vh;
+        margin: 0 auto;
     }
-    .hero__brand { font-size: 2rem; }
-    .hero__title { font-size: 1.25rem; max-width: none; }
-    .hero__tagline { font-size: 0.98rem; margin-bottom: 1.25rem; }
+    .hero__title { font-size: 1.3rem; }
+    .hero__tagline { font-size: 0.98rem; margin-bottom: 1.2rem; }
 }
 
 /* Sections */
@@ -444,7 +412,9 @@ body {
 .exp-card a:hover { text-decoration: underline; }
 
 .pilotage-teaser {
-    background: linear-gradient(135deg, rgba(230, 230, 250, 0.55), rgba(174, 225, 205, 0.4));
+    background: rgba(255, 252, 247, 0.55);
+    border-top: 1px solid rgba(42, 38, 34, 0.06);
+    border-bottom: 1px solid rgba(42, 38, 34, 0.06);
 }
 .pilotage-teaser p { color: var(--ink-soft); }