diff --git a/public/admin/config.yml b/public/admin/config.yml
index fb89b5c..de45eb5 100644
--- a/public/admin/config.yml
+++ b/public/admin/config.yml
@@ -10,6 +10,9 @@ backend:
   api_root: http://localhost:3010/api/v1
   app_id: 73c02331-8842-4ddc-b769-8b09c3c422fb
 
+# CTAO branding on the CMS sign-in screen (official Decap/Sveltia option)
+logo_url: /brand/CTAO_Logo_positive.svg
+
 media_folder: "public/uploads"
 public_folder: "/uploads"
 
diff --git a/public/brand/AAFF_CTAO_Logo_RGB_Monochrome-negative.svg b/public/brand/AAFF_CTAO_Logo_RGB_Monochrome-negative.svg
new file mode 100644
index 0000000..2e72a5f
--- /dev/null
+++ b/public/brand/AAFF_CTAO_Logo_RGB_Monochrome-negative.svg
@@ -0,0 +1,129 @@
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diff --git a/public/brand/CTAO_Logo_positive.svg b/public/brand/CTAO_Logo_positive.svg
new file mode 100644
index 0000000..88eeb49
--- /dev/null
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+					c-12.4,0-19.1,5.7-19.1,15.5c0,0.5,0,1.1,0.1,1.6L122.4,16.1L122.4,16.1z"/>
+				<path class="st3" d="M142.5,13.4c0.2,0.8,0.3,1.7,0.3,2.6c0,5.1-3,8.3-10.2,8.3c-6.4,0-9.5-2.5-10.1-6.7l-8.7,1.8
+					c1.4,7.7,7.9,12.2,18.8,12.2c12.4,0,19.1-5.8,19.1-15.6c0-1.6-0.2-3.1-0.5-4.4L142.5,13.4L142.5,13.4z"/>
+			</g>
+			<g>
+				<polygon class="st3" points="73.4,26.9 71.4,30.7 80.6,30.7 83.3,25.3 				"/>
+				<polygon class="st3" points="98.4,1.3 86.6,1.3 74.5,24.7 84.7,22.5 92.5,7.3 98.9,19.9 107.2,18.6 				"/>
+			</g>
+			<g>
+				<g>
+					<polygon class="st3" points="53.7,30.1 53.7,30.7 62.2,30.7 62.2,28.7 					"/>
+					<polygon class="st3" points="53.7,29 62.2,27.3 62.2,8.5 75.6,8.5 75.6,1.3 40.2,1.3 40.2,8.5 53.7,8.5 					"/>
+				</g>
+				<path class="st3" d="M19.6,0.5c10.8,0,17,4.7,17.8,12.2h-9.1c-0.6-2.7-3.3-5-8.8-5c-6.3,0-9.4,3.1-9.4,8.2s3.1,8.3,9.4,8.3
+					c5.4,0,8.2-2.3,8.8-5.1h9.1c-0.9,7.6-7,12.3-17.8,12.3C7.8,31.5,1.3,26.1,1.3,16S7.8,0.5,19.6,0.5L19.6,0.5z"/>
+			</g>
+		</g>
+		<path class="st3" d="M94.4,23.7c1-1.4,3.3-2.1,5.1-2.7c-2,0.1-4.4,0.3-5.8-0.6c-1.4-1-2.1-3.3-2.7-5.1c0.1,2,0.3,4.4-0.6,5.8
+			c-1,1.4-3.3,2.1-5.1,2.7c2-0.1,4.4-0.3,5.8,0.6c1.4,1,2.1,3.3,2.7,5.1C93.6,27.5,93.4,25.1,94.4,23.7z"/>
+	</g>
+</g>
+</svg>
diff --git a/src/content/news/call-for-proposals-2026.md b/src/content/news/call-for-proposals-2026.md
deleted file mode 100644
index ddad6e2..0000000
--- a/src/content/news/call-for-proposals-2026.md
+++ /dev/null
@@ -1,24 +0,0 @@
----
-title: "Nabór propozycji obserwacyjnych 2026"
-description: "Ruszył otwarty nabór wniosków o czas obserwacyjny na teleskopach CTAO."
-date: 2026-07-10
-category: "ogłoszenia"
-author: "Biuro Naukowe CTAO"
-draft: false
----
-
-## Otwarty nabór
-
-Zapraszamy zespoły badawcze do składania **propozycji obserwacyjnych** na nadchodzący
-cykl. Wnioski można składać przez portal rejestracyjny w zakładce *Teleskopy*.
-
-### Terminy
-
-- Otwarcie naboru: 10 lipca 2026
-- Zamknięcie: 30 września 2026
-- Ogłoszenie wyników: grudzień 2026
-
-### Wymagania
-
-Każdy wniosek powinien zawierać uzasadnienie naukowe, wymagany czas obserwacji oraz
-preferowany zakres energii. Szczegóły w dokumentacji naboru.
diff --git a/src/content/news/first-light-lst-1.md b/src/content/news/first-light-lst-1.md
deleted file mode 100644
index cd4e951..0000000
--- a/src/content/news/first-light-lst-1.md
+++ /dev/null
@@ -1,24 +0,0 @@
----
-title: "Pierwsze światło teleskopu LST-1"
-description: "Największy teleskop CTAO zarejestrował pierwsze błyski Czerenkowa z kierunku Krab."
-date: 2026-06-18
-category: "obserwacje"
-author: "Zespół LST"
-draft: false
----
-
-## Kamień milowy dla obserwatorium
-
-Largest Size Telescope (LST-1) na La Palmie zarejestrował **pierwsze światło** —
-charakterystyczne błyski promieniowania Czerenkowa powstające, gdy promienie gamma
-o wysokiej energii wchodzą w atmosferę Ziemi.
-
-To pierwszy z czterech dużych teleskopów, które utworzą północną część sieci CTAO.
-
-### Co dalej
-
-- Kalibracja kamery i luster segmentowych
-- Wspólne obserwacje z pozostałymi teleskopami sieci
-- Pierwsze publikacje danych dla społeczności naukowej
-
-> „To początek nowej ery w astronomii promieniowania gamma."
diff --git a/src/content/news/new-data-center-online.md b/src/content/news/new-data-center-online.md
deleted file mode 100644
index ec5125f..0000000
--- a/src/content/news/new-data-center-online.md
+++ /dev/null
@@ -1,21 +0,0 @@
----
-title: "Nowe centrum danych CTAO uruchomione"
-description: "Infrastruktura obliczeniowa do przetwarzania danych z sieci teleskopów jest już aktywna."
-date: 2026-07-01
-category: "infrastruktura"
-author: "Zespół IT"
-draft: false
----
-
-## Przetwarzanie danych na dużą skalę
-
-Uruchomiliśmy nowe **centrum danych**, które będzie przetwarzać strumienie danych
-z całej sieci teleskopów CTAO — od surowych zdarzeń po gotowe katalogi naukowe.
-
-### Możliwości
-
-- Automatyczny pipeline rekonstrukcji zdarzeń
-- Archiwum danych z dostępem dla społeczności
-- Dashboardy monitorujące stan sieci w czasie rzeczywistym
-
-Panel monitoringu będzie dostępny w zakładce *Dashboard* portalu.
diff --git a/src/layouts/Base.astro b/src/layouts/Base.astro
index 584f139..6112c75 100644
--- a/src/layouts/Base.astro
+++ b/src/layouts/Base.astro
@@ -1,46 +1,63 @@
 ---
 import '../styles/global.css';
-const { title = 'CTAO Portal', description = 'Portal obserwatorium CTAO' } = Astro.props;
+const { title = 'CTAO Science Portal', description = 'CTAO Science Portal — demo' } = Astro.props;
 const path = Astro.url.pathname;
 const isActive = (href) => (href === '/' ? path === '/' : path.startsWith(href));
+// Navigation = services from the Science Portal spec (REQUIREMENTS.md §2/§5).
+// External systems built by other teams are links out, clearly marked.
 const links = [
-  { href: '/', label: 'Newsy' },
-  { href: '/telescopes', label: 'Teleskopy' },
+  { href: '/', label: 'News' },
+  { href: '/telescopes', label: 'Proposals' },
   { href: '/dashboard', label: 'Dashboard' },
 ];
 ---
 <!doctype html>
-<html lang="pl">
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <title>{title}</title>
     <meta name="description" content={description} />
-    {/* Sora via Google Fonts for the demo; self-host the woff2 for production. */}
+    {/* Brand typography (BRAND D.3): Inter (body) + Space Grotesk (headlines).
+        Google Fonts for the demo; self-host woff2 for production. */}
     <link rel="preconnect" href="https://fonts.googleapis.com" />
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
-    <link href="https://fonts.googleapis.com/css2?family=Sora:wght@400..700&display=swap" rel="stylesheet" />
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400..700&family=Space+Grotesk:wght@500..700&display=swap" rel="stylesheet" />
   </head>
   <body>
-    <a class="skip" href="#main">Przejdź do treści</a>
+    <a class="skip" href="#main">Skip to content</a>
     <header class="site-header">
       <div class="container nav">
-        <a class="brand" href="/"><span class="dot"></span> CTAO&nbsp;Portal</a>
+        <a class="brand" href="/" aria-label="CTAO Science Portal — home">
+          <img src="/brand/AAFF_CTAO_Logo_RGB_Monochrome-negative.svg" alt="CTAO" />
+          <span class="brand-sub">Science&nbsp;Portal</span>
+        </a>
         <span class="spacer"></span>
-        <nav aria-label="Główna nawigacja" style="display: contents">
+        <nav aria-label="Main navigation">
           {links.map((l) => (
             <a class="navlink" href={l.href} aria-current={isActive(l.href) ? 'page' : undefined}>{l.label}</a>
           ))}
+          <a class="navlink external" href="https://padc-ctao-data-explorer.obspm.fr/" target="_blank" rel="noopener">Data</a>
         </nav>
-        <a class="navlink navlink--edit" href="/admin">✎ Edytor</a>
+        <a class="navlink navlink--edit" href="/admin">✎ Editor</a>
+        <button class="login-mock" type="button" disabled title="Mock — CTAO AAI sign-in will be integrated here">Sign in</button>
       </div>
     </header>
     <main id="main">
       <slot />
     </main>
     <footer class="footer">
-      <div class="container">
-        CTAO Portal — demo (git-based CMS). Treść generowana statycznie z plików Markdown.
+      {/* Bottom menu required by SPEC §3.3.1: disclaimers, privacy, contact, settings, search.
+          Placeholder links = <a> without href (valid HTML placeholder-link semantics). */}
+      <div class="container inner">
+        <a>Disclaimer</a>
+        <a>Privacy</a>
+        <a>Contact</a>
+        <a>Site settings</a>
+        <a>Search</a>
+        <span class="note">Science Portal Core demo (Cyfronet / SUSS-PORT team). Sample content
+        imported from ctao.org; footer links are placeholders. Statically generated from
+        Markdown (git-based CMS).</span>
       </div>
     </footer>
   </body>
diff --git a/src/pages/dashboard.astro b/src/pages/dashboard.astro
index cfcb18b..5c00352 100644
--- a/src/pages/dashboard.astro
+++ b/src/pages/dashboard.astro
@@ -3,12 +3,15 @@ import Base from '../layouts/Base.astro';
 ---
 <Base title="CTAO Portal — Dashboard" description="Panel z danymi z innych serwisów">
   <section class="container page">
+    <span class="badge-mock">Makieta — dane przykładowe</span>
     <div class="placeholder">
       <div>
         <div class="big">📡</div>
-        <h1>Dashboard</h1>
-        <p>Tu trafią dane z innych serwisów (monitoring sieci teleskopów, statusy, wykresy).<br/>
-        To część <strong>dynamiczna</strong> — utrzymywana osobno od statycznych treści.</p>
+        <h1>Dashboard użytkownika</h1>
+        <p>Wg specyfikacji SUSS: status wniosków, harmonogramy, produkty danych i zgłoszenia
+        helpdesku użytkownika — zbierane z pozostałych serwisów.<br/>
+        To część <strong>dynamiczna</strong> (nasz zakres, Release 5), utrzymywana osobno od
+        statycznych treści. Wszystko na tej stronie jest makietą.</p>
       </div>
     </div>
   </section>
diff --git a/src/pages/index.astro b/src/pages/index.astro
index 733738d..64364ab 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -5,23 +5,32 @@ import Base from '../layouts/Base.astro';
 const posts = (await getCollection('news', ({ data }) => !data.draft)).sort(
   (a, b) => b.data.date.valueOf() - a.data.date.valueOf(),
 );
-const fmt = (d) => new Intl.DateTimeFormat('pl-PL', { dateStyle: 'long' }).format(d);
+const fmt = (d) => new Intl.DateTimeFormat('en-GB', { dateStyle: 'long' }).format(d);
+const iso = (d) => d.toISOString().slice(0, 10);
 ---
-<Base title="CTAO Portal — Newsy" description="Aktualności obserwatorium CTAO">
-  <section class="container hero">
-    <div class="eyebrow">Cherenkov Telescope Array Observatory</div>
-    <h1>Aktualności i ogłoszenia</h1>
-    <p>Najnowsze informacje z sieci teleskopów CTAO. Treść zarządzana przez edytorów w graficznym CMS-ie, publikowana jako statyczna strona.</p>
+<Base title="CTAO Science Portal — News" description="News and announcements of the CTAO">
+  <section class="hero-band">
+    <span class="flash" aria-hidden="true"></span>
+    <div class="container hero">
+      <div class="eyebrow">Cherenkov Telescope Array Observatory</div>
+      <h1>News &amp; Announcements</h1>
+      <p>Exploring the Universe at the Highest Energies</p>
+    </div>
   </section>
 
-  <section class="container">
+  <section class="container" aria-label="News list">
     <div class="grid">
-      {posts.map((post) => (
-        <article class="card">
-          <span class="cat">{post.data.category}</span>
-          <h3><a href={`/news/${post.id}`}>{post.data.title}</a></h3>
-          <p>{post.data.description}</p>
-          <div class="meta">{post.data.author} · {fmt(post.data.date)}</div>
+      {posts.map((post, i) => (
+        <article class={i === 0 ? 'card card--featured' : 'card'}>
+          {post.data.cover && (
+            <img class="cover" src={encodeURI(post.data.cover)} alt="" loading={i === 0 ? 'eager' : 'lazy'} />
+          )}
+          <div class="body">
+            <span class="cat">{post.data.category}</span>
+            <h3><a href={`/news/${post.id}`}>{post.data.title}</a></h3>
+            <p class="desc">{post.data.description}</p>
+            <div class="meta">{post.data.author} · <time datetime={iso(post.data.date)}>{fmt(post.data.date)}</time></div>
+          </div>
         </article>
       ))}
     </div>
diff --git a/src/pages/telescopes.astro b/src/pages/telescopes.astro
index 101b60b..a9dac0c 100644
--- a/src/pages/telescopes.astro
+++ b/src/pages/telescopes.astro
@@ -2,13 +2,17 @@
 import Base from '../layouts/Base.astro';
 ---
 <Base title="CTAO Portal — Teleskopy" description="Rejestracja i rezerwacja czasu obserwacyjnego">
-  <section class="container hero">
-    <div class="eyebrow">Rejestracja</div>
-    <h1>Zgłoszenie obserwacji</h1>
-    <p>Mockup formularza rejestracji/rezerwacji czasu na teleskopach CTAO. To makieta — bez logiki wysyłki.</p>
+  <section class="hero-band">
+    <div class="container hero">
+      <div class="eyebrow">Proposal Submission</div>
+      <h1>Zgłoszenie obserwacji</h1>
+      <p>Składanie wniosków obserwacyjnych (w tym ToO / MWL)</p>
+    </div>
   </section>
 
   <section class="container page">
+    <span class="badge-mock">Makieta — bez logiki wysyłki</span>
+    <span class="badge-ext">Docelowo: Proposal Handling System (team APC) zintegrowany w portalu</span>
     <div class="panel" style="max-width:640px">
       <div class="form-row">
         <label for="f-title">Tytuł propozycji</label>
diff --git a/src/styles/global.css b/src/styles/global.css
index 92c67e0..d682937 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -1,60 +1,57 @@
 /* ==========================================================================
-   CTAO Portal — flat design, "Cherenkov blue" accent.
-   All look-and-feel lives in the tokens below: change a color/font/radius
-   here and the whole site follows. Light is canonical; dark mode overrides
-   only the tokens. All pairings meet WCAG AA contrast.
+   CTAO Science Portal — design tokens per the official CTAO Brand Guidelines
+   (April 2024): colors D.2, typography D.3 (Inter body / Space Grotesk display),
+   flash D.4. All look-and-feel lives in the tokens below; WCAG 2.1 AA contrast.
+   Light theme only (brand is light-first; navy bands carry the dark identity).
    ========================================================================== */
 :root {
-  --bg: #ffffff;
-  --surface: #f4f6fa;
-  --text: #131c2b;
+  /* Brand palette — hex values straight from the brand book */
+  --galaxy: #00004a;        /* Galaxy Blue — headings, header/footer bands */
+  --cherenkov: #00e4d8;     /* Cherenkov Blue — accents, flash, CTAs; NOT for small text on light */
+  --moon: #f5f5f5;          /* Moon Gray — surfaces */
+  --azure: #007aff;         /* Cosmic Azure — brand hyperlink hue (large/UI only on light) */
+  --indigo: #00009c;        /* Interestellar Indigo — gradient depth */
+  /* Derived, WCAG-adjusted */
+  --text: #101228;          /* near-Galaxy body ink */
   --muted: #46536a;
-  --border: #dfe4ec;
-  --accent: #1d4ed8;        /* Cherenkov blue — links, buttons, active states */
-  --accent-strong: #14369b; /* hover / chip text */
-  --accent-soft: #edf2fe;   /* chip & hint backgrounds */
+  --border: #e2e5ee;
+  --link: #0057c2;          /* Cosmic Azure darkened to pass AA (4.5:1) for body links */
+  --on-galaxy-muted: #c7cde9;
+  --tint-cherenkov: rgba(0, 228, 216, 0.16); /* chip/badge fill derived from --cherenkov */
+  /* Type & layout */
+  --font-body: "Inter", Arial, system-ui, sans-serif;          /* BRAND D.3.1 */
+  --font-display: "Space Grotesk", var(--font-body);           /* BRAND D.3.2 — headlines only */
   --radius: 10px;
-  --maxw: 1080px;
-  --font: "Sora", system-ui, sans-serif;
-}
-@media (prefers-color-scheme: dark) {
-  :root {
-    --bg: #101419;
-    --surface: #161c24;
-    --text: #e7ebf2;
-    --muted: #9aa5b8;
-    --border: #2a3340;
-    --accent: #8ab4f8;
-    --accent-strong: #b3ccfa;
-    --accent-soft: #1a2637;
-  }
+  --maxw: 1120px;
 }
 
 * { box-sizing: border-box; }
 html { -webkit-text-size-adjust: 100%; }
 body {
   margin: 0;
-  font-family: var(--font);
-  background: var(--bg);
+  font-family: var(--font-body);
+  background: #fff;
   color: var(--text);
   line-height: 1.65;
   min-height: 100dvh;
 }
 
-a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
-a:hover { color: var(--accent-strong); }
+h1, h2 { font-family: var(--font-display); letter-spacing: -0.01em; }
+
+a { color: var(--link); text-decoration: underline; text-underline-offset: 3px; }
+a:hover { color: var(--indigo); }
 img { max-width: 100%; height: auto; display: block; }
 
 /* Visible keyboard focus everywhere (WCAG 2.4.7) */
-:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
+:focus-visible { outline: 2px solid var(--azure); outline-offset: 2px; }
 
 /* Skip link — first tab stop, hidden until focused (WCAG 2.4.1) */
 .skip {
-  position: absolute; left: 16px; top: -48px; z-index: 20;
-  background: var(--accent); color: var(--bg); text-decoration: none;
+  position: absolute; left: 16px; top: -52px; z-index: 20;
+  background: var(--galaxy); color: #fff; text-decoration: none;
   padding: 10px 16px; border-radius: 0 0 var(--radius) var(--radius);
 }
-.skip:focus { top: 0; color: var(--bg); }
+.skip:focus { top: 0; }
 
 @media (prefers-reduced-motion: reduce) {
   *, *::before, *::after { transition: none !important; animation: none !important; }
@@ -62,121 +59,160 @@ img { max-width: 100%; height: auto; display: block; }
 
 .container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
 
-/* Header / nav */
-.site-header { background: var(--bg); border-bottom: 1px solid var(--border); }
-.nav { display: flex; align-items: center; gap: 6px; min-height: 60px; flex-wrap: wrap; }
-.brand {
-  display: flex; align-items: center; gap: 10px;
-  font-weight: 700; letter-spacing: 0.01em; color: var(--text); text-decoration: none;
+/* Flash — the 4-point star brand asset (BRAND D.4), CSS-only approximation */
+.flash {
+  display: inline-block; width: 14px; height: 14px; background: var(--cherenkov);
+  clip-path: polygon(50% 0, 60% 40%, 100% 50%, 60% 60%, 50% 100%, 40% 60%, 0 50%, 40% 40%);
 }
-/* Flat triangle — the Cherenkov light cone */
-.brand .dot {
-  width: 13px; height: 12px; background: var(--accent);
-  clip-path: polygon(50% 0, 100% 100%, 0 100%);
+
+/* Header — Galaxy Blue band, reverse (white) logo per BRAND B.1.2 */
+.site-header { background: var(--galaxy); }
+.nav { display: flex; align-items: center; gap: 4px; min-height: 64px; flex-wrap: wrap; }
+.brand { display: flex; align-items: center; gap: 10px; margin-right: 10px; }
+.brand img { height: 26px; width: auto; }
+.brand .brand-sub {
+  color: var(--cherenkov); font-size: 0.78rem; font-weight: 500;
+  border-left: 1px solid rgba(255,255,255,0.25); padding-left: 10px;
 }
 .nav .spacer { flex: 1; }
 .nav a.navlink {
-  color: var(--muted); font-weight: 500; font-size: 0.95rem;
+  color: var(--on-galaxy-muted); font-weight: 500; font-size: 0.95rem;
   padding: 10px 10px; text-decoration: none; border-bottom: 2px solid transparent;
 }
-.nav a.navlink:hover { color: var(--text); }
-.nav a.navlink[aria-current="page"] { color: var(--text); border-bottom-color: var(--accent); }
+.nav a.navlink:hover { color: #fff; }
+.nav a.navlink[aria-current="page"] { color: #fff; border-bottom-color: var(--cherenkov); }
 .nav a.navlink--edit {
-  color: var(--accent); border: 1px solid var(--border); border-radius: var(--radius);
+  color: #fff; border: 1px solid rgba(255,255,255,0.35); border-radius: var(--radius);
   padding: 7px 14px; margin-left: 6px;
 }
-.nav a.navlink--edit:hover { border-color: var(--accent); }
+.nav a.navlink--edit:hover { border-color: var(--cherenkov); color: var(--cherenkov); }
+/* AAI login placeholder — visibly disabled (mock) */
+.nav .login-mock {
+  color: var(--galaxy); background: var(--cherenkov); font: inherit; font-weight: 600;
+  border: 0; border-radius: var(--radius); padding: 8px 16px; margin-left: 6px; cursor: not-allowed;
+}
+.external::after { content: " ↗"; font-size: 0.85em; }
 
-/* Hero */
-.hero { padding: 56px 0 24px; }
-.hero h1 {
-  font-size: clamp(1.9rem, 5vw, 2.8rem); margin: 0 0 12px;
-  line-height: 1.12; letter-spacing: -0.02em; font-weight: 700;
+/* Hero — navy band with a subtle nebula gradient (BRAND D.5) */
+.hero-band {
+  background:
+    radial-gradient(700px 340px at 85% 115%, rgba(0,228,216,0.28), transparent 65%),
+    radial-gradient(500px 260px at -5% -40%, rgba(0,0,156,0.55), transparent 60%),
+    var(--galaxy);
+  color: #fff; padding: 56px 0 48px; position: relative; overflow: hidden;
 }
-/* Flat editorial signature: accent bar under the page title */
-.hero h1::after {
-  content: ""; display: block; width: 56px; height: 4px;
-  background: var(--accent); margin-top: 18px;
-}
-.hero p { color: var(--muted); font-size: 1.06rem; max-width: 60ch; margin: 0; }
+.hero-band .flash { position: absolute; right: 8%; top: 22%; width: 22px; height: 22px; }
+.hero h1 { font-size: clamp(1.9rem, 5vw, 2.9rem); margin: 0 0 10px; line-height: 1.12; font-weight: 700; }
+.hero p { color: var(--cherenkov); font-size: 1.08rem; max-width: 62ch; margin: 0; } /* subtitle per BRAND D.3.4 */
 .eyebrow {
-  color: var(--accent); font-weight: 600; text-transform: uppercase;
-  letter-spacing: 0.14em; font-size: 0.72rem; margin-bottom: 6px;
+  color: var(--on-galaxy-muted); font-weight: 600; text-transform: uppercase;
+  letter-spacing: 0.14em; font-size: 0.72rem; margin-bottom: 8px;
 }
 
+/* Section headings on light background */
+.section-title { color: var(--galaxy); font-size: 1.4rem; margin: 36px 0 4px; }
+
 /* News grid */
 .grid { display: grid; gap: 16px; grid-template-columns: 1fr; padding: 28px 0 64px; }
 @media (min-width: 640px) { .grid { grid-template-columns: repeat(2, 1fr); } }
 @media (min-width: 940px) { .grid { grid-template-columns: repeat(3, 1fr); } }
 
+/* News cards — image + category + clamped title/description + <time> meta;
+   whole card clickable via stretched link (research: NN/g & card-UI guides 2025). */
 .card {
-  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
-  padding: 22px; display: flex; flex-direction: column; gap: 10px;
+  position: relative; background: #fff; border: 1px solid var(--border);
+  border-radius: var(--radius); overflow: hidden;
+  display: flex; flex-direction: column;
   transition: border-color 0.15s ease;
 }
-.card:hover, .card:focus-within { border-color: var(--accent); }
+.card:hover, .card:focus-within { border-color: var(--azure); }
+.card .cover { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
+.card .body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
 .card .cat {
   align-self: flex-start; font-size: 0.72rem; text-transform: uppercase;
   letter-spacing: 0.08em; font-weight: 600;
-  color: var(--accent-strong); background: var(--accent-soft);
+  color: var(--galaxy); background: var(--tint-cherenkov);
   padding: 4px 10px; border-radius: 999px;
 }
-.card h3 { margin: 2px 0 0; font-size: 1.12rem; line-height: 1.35; }
-.card h3 a { color: var(--text); text-decoration: none; }
-.card h3 a:hover { color: var(--accent); }
-.card p { margin: 0; color: var(--muted); font-size: 0.94rem; }
+.card h3 {
+  margin: 2px 0 0; font-size: 1.1rem; line-height: 1.35; font-family: var(--font-body);
+  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
+}
+.card h3 a { color: var(--galaxy); text-decoration: none; }
+/* Stretched link: the title's tap target covers the whole card (still one tab stop) */
+.card h3 a::after { content: ""; position: absolute; inset: 0; }
+.card h3 a:hover { color: var(--link); }
+.card .desc {
+  margin: 0; color: var(--muted); font-size: 0.94rem;
+  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
+}
 .card .meta { margin-top: auto; color: var(--muted); font-size: 0.8rem; }
+/* Lead story — larger, spans the grid (editorial "hot news" hierarchy) */
+@media (min-width: 940px) {
+  .card--featured { grid-column: 1 / -1; display: grid; grid-template-columns: 3fr 2fr; }
+  .card--featured .cover { height: 100%; aspect-ratio: auto; }
+  .card--featured .body { padding: 26px 28px; justify-content: center; }
+  .card--featured h3 { font-size: 1.6rem; font-family: var(--font-display); -webkit-line-clamp: 3; }
+  .card--featured .desc { -webkit-line-clamp: 3; }
+}
 
 /* Article */
 .article { padding: 40px 0 72px; max-width: 720px; }
 .article .back { color: var(--muted); font-size: 0.9rem; }
 .article h1 {
-  font-size: clamp(1.7rem, 4.5vw, 2.4rem); margin: 14px 0 8px;
-  line-height: 1.15; letter-spacing: -0.02em;
+  color: var(--galaxy); font-size: clamp(1.7rem, 4.5vw, 2.4rem);
+  margin: 14px 0 8px; line-height: 1.15;
 }
 .article .meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 28px; }
 .article .cover { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 28px; }
-.prose h2 { margin: 34px 0 10px; font-size: 1.45rem; letter-spacing: -0.01em; }
-.prose h3 { margin: 26px 0 8px; font-size: 1.15rem; }
+.prose h2 { color: var(--galaxy); margin: 34px 0 10px; font-size: 1.45rem; }
+.prose h3 { color: var(--galaxy); margin: 26px 0 8px; font-size: 1.15rem; }
 .prose p { margin: 0 0 16px; }
-.prose ul { margin: 0 0 16px; padding-left: 22px; }
+.prose ul, .prose ol { margin: 0 0 16px; padding-left: 22px; }
 .prose li { margin: 6px 0; }
 .prose blockquote {
-  margin: 22px 0; padding: 12px 20px; border-left: 3px solid var(--accent);
-  background: var(--surface); color: var(--text);
+  margin: 22px 0; padding: 12px 20px; border-left: 3px solid var(--cherenkov);
+  background: var(--moon); color: var(--text);
 }
-.prose ol { margin: 0 0 16px; padding-left: 22px; }
 .prose img { border: 1px solid var(--border); border-radius: var(--radius); }
 .prose img + em, .prose p > em:only-child { color: var(--muted); font-size: 0.85rem; }
 .prose hr { border: 0; border-top: 1px solid var(--border); margin: 32px 0; }
 .prose table { width: 100%; border-collapse: collapse; margin: 0 0 16px; font-size: 0.94rem; }
-.prose th { text-align: left; font-weight: 600; }
+.prose th { text-align: left; font-weight: 600; color: var(--galaxy); }
 .prose th, .prose td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
-.prose thead th { border-bottom: 2px solid var(--accent); }
+.prose thead th { border-bottom: 2px solid var(--cherenkov); }
 
 /* Generic page / mockup */
 .page { padding: 40px 0 72px; }
-.panel { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
+.panel { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
 .form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
 .form-row label { font-size: 0.88rem; font-weight: 500; }
 .form-row input, .form-row select, .form-row textarea {
-  background: var(--bg); border: 1px solid var(--border); border-radius: calc(var(--radius) - 4px);
+  background: #fff; border: 1px solid var(--border); border-radius: calc(var(--radius) - 4px);
   color: var(--text); padding: 11px 12px; font: inherit;
 }
-.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--accent); }
+.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--azure); }
 .btn {
-  background: var(--accent); color: var(--bg); border: 0;
+  background: var(--cherenkov); color: var(--galaxy); border: 0;
   padding: 12px 20px; border-radius: calc(var(--radius) - 4px);
   font: inherit; font-weight: 600; cursor: pointer;
 }
-.btn:hover { background: var(--accent-strong); }
+.btn:hover { filter: brightness(0.92); }
 .notice { color: var(--muted); font-size: 0.85rem; margin-top: 10px; }
 
-.placeholder { display: grid; place-items: center; min-height: 40vh; text-align: center; color: var(--muted); }
+/* Mock/status badges — every mock must be labelled (REQUIREMENTS.md §5) */
+.badge-mock, .badge-ext {
+  display: inline-block; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em;
+  text-transform: uppercase; padding: 4px 10px; border-radius: 999px; margin-bottom: 14px;
+}
+.badge-mock { color: #7a3d00; background: #fff3e0; border: 1px solid #f0cf9b; }
+.badge-ext { color: var(--galaxy); background: var(--moon); border: 1px solid var(--border); }
+
+.placeholder { display: grid; place-items: center; min-height: 32vh; text-align: center; color: var(--muted); }
 .placeholder .big { font-size: 3rem; margin-bottom: 8px; }
 
-.footer { border-top: 1px solid var(--border); color: var(--muted); font-size: 0.85rem; padding: 26px 0; margin-top: 24px; }
-.cms-hint {
-  background: var(--accent-soft); border: 1px solid var(--border);
-  border-radius: var(--radius); padding: 14px 16px; font-size: 0.9rem; margin: 0 0 24px;
-}
+/* Footer — bottom menu per SPEC §3.3.1: disclaimers, privacy, contact, settings, search */
+.footer { background: var(--galaxy); color: var(--on-galaxy-muted); font-size: 0.85rem; margin-top: 24px; }
+.footer .inner { display: flex; flex-wrap: wrap; gap: 8px 22px; align-items: center; padding: 26px 0; }
+.footer a { color: #fff; }
+.footer .note { width: 100%; margin-top: 6px; color: var(--on-galaxy-muted); }