White-label multi-domain tuki (Noxus Intra)

- CSS-muuttujat: kaikki kovakoodatut #0f3460/#16213e korvattu var(--primary-color)/var(--primary-dark)
- Uudet API-endpointit: branding (julkinen, domain-pohjainen), company_logo, company_logo_upload
- Domain-pohjainen brändäys: HTTP_HOST → yrityksen domains-arrayn matchaus
- Login: domain asettaa oletusyrityksen sessioon
- check_auth: palauttaa branding-objektin (primary_color, subtitle, logo_url)
- company_create/update: käsittelee domains, primary_color, subtitle, logo_file
- Dynaaminen login-sivu, header ja footer (logo, nimi, alaotsikko, värit)
- JS: loadBranding(), applyBranding(), yritysvaihdon brändäyspäivitys
- Admin-paneeli: brändäysasetukset (logo-upload, väri, alaotsikko, domainit)
- Git-repo siirretty intra.noxus.fi:hin

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

api.php

@@ -1016,6 +1016,143 @@ switch ($action) {
         echo json_encode(['question' => "$a + $b = ?"]);
         break;
 
+    // ---------- BRANDING (julkinen) ----------
+    case 'branding':
+        $host = $_SERVER['HTTP_HOST'] ?? '';
+        // Stripaa portti pois (localhost:3001 → localhost)
+        $host = strtolower(explode(':', $host)[0]);
+        $companies = loadCompanies();
+        $matchedCompany = null;
+        foreach ($companies as $comp) {
+            $domains = $comp['domains'] ?? [];
+            foreach ($domains as $d) {
+                if (strtolower(trim($d)) === strtolower($host)) {
+                    $matchedCompany = $comp;
+                    break 2;
+                }
+            }
+        }
+        if ($matchedCompany) {
+            $logoUrl = !empty($matchedCompany['logo_file'])
+                ? "api.php?action=company_logo&company_id=" . urlencode($matchedCompany['id'])
+                : '';
+            echo json_encode([
+                'found' => true,
+                'company_id' => $matchedCompany['id'],
+                'nimi' => $matchedCompany['nimi'],
+                'primary_color' => $matchedCompany['primary_color'] ?? '#0f3460',
+                'subtitle' => $matchedCompany['subtitle'] ?? '',
+                'logo_url' => $logoUrl,
+            ]);
+        } else {
+            // Noxus Intra -oletusbrändäys
+            echo json_encode([
+                'found' => false,
+                'company_id' => '',
+                'nimi' => 'Noxus Intra',
+                'primary_color' => '#0f3460',
+                'subtitle' => 'Hallintapaneeli',
+                'logo_url' => '',
+            ]);
+        }
+        break;
+
+    case 'company_logo':
+        $companyId = $_GET['company_id'] ?? '';
+        if (empty($companyId) || !preg_match('/^[a-z0-9-]+$/', $companyId)) {
+            http_response_code(400);
+            echo json_encode(['error' => 'Virheellinen company_id']);
+            break;
+        }
+        $companies = loadCompanies();
+        $logoFile = '';
+        foreach ($companies as $comp) {
+            if ($comp['id'] === $companyId) {
+                $logoFile = $comp['logo_file'] ?? '';
+                break;
+            }
+        }
+        if (empty($logoFile)) {
+            http_response_code(404);
+            echo json_encode(['error' => 'Logoa ei löydy']);
+            break;
+        }
+        $logoPath = DATA_DIR . '/companies/' . $companyId . '/' . $logoFile;
+        if (!file_exists($logoPath)) {
+            http_response_code(404);
+            echo json_encode(['error' => 'Logotiedostoa ei löydy']);
+            break;
+        }
+        $ext = strtolower(pathinfo($logoFile, PATHINFO_EXTENSION));
+        $mimeTypes = ['png' => 'image/png', 'jpg' => 'image/jpeg', 'jpeg' => 'image/jpeg', 'svg' => 'image/svg+xml', 'webp' => 'image/webp'];
+        $mime = $mimeTypes[$ext] ?? 'application/octet-stream';
+        header('Content-Type: ' . $mime);
+        header('Cache-Control: public, max-age=3600');
+        readfile($logoPath);
+        exit;
+
+    case 'company_logo_upload':
+        requireAdmin();
+        if ($method !== 'POST') break;
+        $companyId = $_POST['company_id'] ?? '';
+        if (empty($companyId) || !preg_match('/^[a-z0-9-]+$/', $companyId)) {
+            http_response_code(400);
+            echo json_encode(['error' => 'Virheellinen company_id']);
+            break;
+        }
+        if (!isset($_FILES['logo']) || $_FILES['logo']['error'] !== UPLOAD_ERR_OK) {
+            http_response_code(400);
+            echo json_encode(['error' => 'Logotiedosto puuttuu tai virhe uploadissa']);
+            break;
+        }
+        $file = $_FILES['logo'];
+        // Validoi koko (max 2MB)
+        if ($file['size'] > 2 * 1024 * 1024) {
+            http_response_code(400);
+            echo json_encode(['error' => 'Logo on liian suuri (max 2MB)']);
+            break;
+        }
+        // Validoi tyyppi
+        $allowedTypes = ['image/png', 'image/jpeg', 'image/svg+xml', 'image/webp'];
+        $finfo = finfo_open(FILEINFO_MIME_TYPE);
+        $detectedType = finfo_file($finfo, $file['tmp_name']);
+        finfo_close($finfo);
+        if (!in_array($detectedType, $allowedTypes)) {
+            http_response_code(400);
+            echo json_encode(['error' => 'Sallitut tiedostotyypit: PNG, JPG, SVG, WebP']);
+            break;
+        }
+        $extMap = ['image/png' => 'png', 'image/jpeg' => 'jpg', 'image/svg+xml' => 'svg', 'image/webp' => 'webp'];
+        $ext = $extMap[$detectedType] ?? 'png';
+        $newFilename = 'logo.' . $ext;
+        $compDir = DATA_DIR . '/companies/' . $companyId;
+        if (!file_exists($compDir)) {
+            http_response_code(404);
+            echo json_encode(['error' => 'Yritystä ei löydy']);
+            break;
+        }
+        // Poista vanha logo
+        $companies = loadCompanies();
+        foreach ($companies as &$comp) {
+            if ($comp['id'] === $companyId) {
+                $oldLogo = $comp['logo_file'] ?? '';
+                if ($oldLogo && $oldLogo !== $newFilename && file_exists($compDir . '/' . $oldLogo)) {
+                    unlink($compDir . '/' . $oldLogo);
+                }
+                $comp['logo_file'] = $newFilename;
+                break;
+            }
+        }
+        unset($comp);
+        saveCompanies($companies);
+        move_uploaded_file($file['tmp_name'], $compDir . '/' . $newFilename);
+        echo json_encode([
+            'success' => true,
+            'logo_file' => $newFilename,
+            'logo_url' => "api.php?action=company_logo&company_id=" . urlencode($companyId),
+        ]);
+        break;
+
     // ---------- AUTH ----------
     case 'login':
         if ($method !== 'POST') break;
@@ -1050,8 +1187,24 @@ switch ($action) {
                 // Multi-company: aseta käyttäjän yritykset sessioon
                 $userCompanies = $u['companies'] ?? [];
                 $_SESSION['companies'] = $userCompanies;
-                // Valitse ensimmäinen yritys oletukseksi
+                // Domain-pohjainen oletusyritys
+                $host = strtolower(explode(':', $_SERVER['HTTP_HOST'] ?? '')[0]);
+                $domainCompanyId = '';
+                $allComps = loadCompanies();
+                foreach ($allComps as $dc) {
+                    foreach ($dc['domains'] ?? [] as $d) {
+                        if (strtolower(trim($d)) === strtolower($host)) {
+                            $domainCompanyId = $dc['id'];
+                            break 2;
+                        }
+                    }
+                }
+                // Jos domain matchaa ja käyttäjällä on oikeus → käytä sitä
+                if ($domainCompanyId && in_array($domainCompanyId, $userCompanies)) {
+                    $_SESSION['company_id'] = $domainCompanyId;
+                } else {
                     $_SESSION['company_id'] = !empty($userCompanies) ? $userCompanies[0] : '';
+                }
                 // Hae yritysten nimet
                 $allCompanies = loadCompanies();
                 $companyList = [];
@@ -1116,6 +1269,20 @@ switch ($action) {
                     break;
                 }
             }
+            // Brändäystiedot aktiivisesta yrityksestä
+            $branding = ['primary_color' => '#0f3460', 'subtitle' => '', 'logo_url' => '', 'company_nimi' => ''];
+            $activeCompanyId = $_SESSION['company_id'] ?? '';
+            foreach ($allCompanies as $bc) {
+                if ($bc['id'] === $activeCompanyId) {
+                    $branding['primary_color'] = $bc['primary_color'] ?? '#0f3460';
+                    $branding['subtitle'] = $bc['subtitle'] ?? '';
+                    $branding['company_nimi'] = $bc['nimi'] ?? '';
+                    $branding['logo_url'] = !empty($bc['logo_file'])
+                        ? "api.php?action=company_logo&company_id=" . urlencode($bc['id'])
+                        : '';
+                    break;
+                }
+            }
             echo json_encode([
                 'authenticated' => true,
                 'user_id' => $_SESSION['user_id'],
@@ -1125,6 +1292,7 @@ switch ($action) {
                 'companies' => $companyList,
                 'company_id' => $_SESSION['company_id'] ?? '',
                 'signatures' => $userSignatures,
+                'branding' => $branding,
             ]);
         } else {
             echo json_encode(['authenticated' => false]);
@@ -2479,9 +2647,18 @@ switch ($action) {
                 break 2;
             }
         }
+        // Brändäyskentät
+        $domains = [];
+        if (isset($input['domains']) && is_array($input['domains'])) {
+            $domains = array_values(array_filter(array_map('trim', $input['domains'])));
+        }
         $company = [
             'id' => $id,
             'nimi' => $nimi,
+            'domains' => $domains,
+            'primary_color' => trim($input['primary_color'] ?? '#0f3460'),
+            'subtitle' => trim($input['subtitle'] ?? ''),
+            'logo_file' => '',
             'luotu' => date('Y-m-d H:i:s'),
             'aktiivinen' => true,
         ];
@@ -2521,6 +2698,11 @@ switch ($action) {
             if ($c['id'] === $id) {
                 if (isset($input['nimi'])) $c['nimi'] = trim($input['nimi']);
                 if (isset($input['aktiivinen'])) $c['aktiivinen'] = (bool)$input['aktiivinen'];
+                if (isset($input['domains']) && is_array($input['domains'])) {
+                    $c['domains'] = array_values(array_filter(array_map('trim', $input['domains'])));
+                }
+                if (isset($input['primary_color'])) $c['primary_color'] = trim($input['primary_color']);
+                if (isset($input['subtitle'])) $c['subtitle'] = trim($input['subtitle']);
                 $found = true;
                 echo json_encode($c);
                 break;

index.html

@@ -3,15 +3,16 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>CuituNet Intra - Asiakashallinta</title>
+    <title>Noxus Intra</title>
     <link rel="stylesheet" href="style.css">
 </head>
 <body>
     <!-- Login -->
     <div id="login-screen" class="login-screen">
         <div class="login-box">
-            <h1>CuituNet Intra</h1>
-            <p>Kirjaudu sisään</p>
+            <img id="login-logo" src="" alt="Logo" style="height:48px;margin-bottom:0.75rem;display:none;">
+            <h1 id="login-title">Noxus Intra</h1>
+            <p id="login-subtitle">Kirjaudu sisään</p>
             <form id="login-form">
                 <input type="text" id="login-username" placeholder="Käyttäjätunnus" required autofocus>
                 <input type="password" id="login-password" placeholder="Salasana" required>
@@ -26,7 +27,7 @@
         </div>
         <!-- Salasanan palautuspyyntö -->
         <div class="login-box" id="forgot-box" style="display:none">
-            <h1>CuituNet Intra</h1>
+            <h1 class="login-brand-title">Noxus Intra</h1>
             <p>Salasanan palautus</p>
             <form id="forgot-form">
                 <input type="text" id="forgot-username" placeholder="Käyttäjätunnus" required autofocus>
@@ -38,7 +39,7 @@
         </div>
         <!-- Uusi salasana (reset token) -->
         <div class="login-box" id="reset-box" style="display:none">
-            <h1>CuituNet Intra</h1>
+            <h1 class="login-brand-title">Noxus Intra</h1>
             <p>Aseta uusi salasana</p>
             <form id="reset-form">
                 <input type="password" id="reset-password" placeholder="Uusi salasana" required>
@@ -55,10 +56,11 @@
         <header>
             <div class="header-left">
                 <div class="header-brand" id="brand-home" style="cursor:pointer;">
-                    <span class="brand-icon">&#9889;</span>
+                    <img id="header-logo" src="" alt="Logo" style="height:32px;display:none;">
+                    <span class="brand-icon" id="header-brand-icon">&#9889;</span>
                     <div>
-                        <h1>CuituNet Intra</h1>
-                        <span class="subtitle">Kuituasiakkaiden hallinta</span>
+                        <h1 id="header-title">Noxus Intra</h1>
+                        <span class="subtitle" id="header-subtitle">Hallintapaneeli</span>
                     </div>
                 </div>
             </div>
@@ -514,16 +516,36 @@
                 <div id="company-detail-view" style="display:none;">
                     <button class="btn-secondary" id="btn-company-back" style="color:#555;border-color:#ddd;margin-bottom:1rem;">&#8592; Takaisin yrityslistaan</button>
                     <div class="table-card" style="padding:1.5rem;">
-                        <h3 style="color:#0f3460;margin-bottom:0.5rem;" id="company-detail-title">Yrityksen asetukset</h3>
-                        <div class="form-grid" style="max-width:400px;margin-bottom:1.5rem;">
+                        <h3 style="margin-bottom:0.5rem;" id="company-detail-title">Yrityksen asetukset</h3>
+                        <div class="form-grid" style="max-width:600px;margin-bottom:1.5rem;">
                             <div class="form-group">
                                 <label>Yrityksen nimi</label>
                                 <input type="text" id="company-edit-nimi">
                             </div>
                             <div class="form-group">
-                                <button class="btn-primary" id="btn-save-company-name" style="font-size:0.85rem;">Tallenna nimi</button>
+                                <label>Alaotsikko</label>
+                                <input type="text" id="company-edit-subtitle" placeholder="esim. Asiakashallinta">
+                            </div>
+                            <div class="form-group">
+                                <label>Pääväri</label>
+                                <div style="display:flex;align-items:center;gap:0.5rem;">
+                                    <input type="color" id="company-edit-color" value="#0f3460" style="width:50px;height:36px;border:none;cursor:pointer;">
+                                    <input type="text" id="company-edit-color-text" placeholder="#0f3460" style="width:100px;font-family:monospace;font-size:0.85rem;">
                                 </div>
                             </div>
+                            <div class="form-group">
+                                <label>Logo</label>
+                                <div style="display:flex;align-items:center;gap:0.75rem;">
+                                    <img id="company-logo-preview" src="" style="height:36px;display:none;border-radius:4px;">
+                                    <input type="file" id="company-logo-upload" accept="image/png,image/jpeg,image/svg+xml,image/webp" style="font-size:0.82rem;">
+                                </div>
+                            </div>
+                            <div class="form-group full-width">
+                                <label>Domainit (yksi per rivi)</label>
+                                <textarea id="company-edit-domains" rows="3" placeholder="intra.yritys.fi&#10;intra.toinen.fi" style="font-family:monospace;font-size:0.85rem;"></textarea>
+                            </div>
+                        </div>
+                        <button class="btn-primary" id="btn-save-company-settings" style="font-size:0.85rem;">Tallenna asetukset</button>
                     </div>
                     <!-- Postilaatikot -->
                     <div class="table-card" style="padding:1.5rem;margin-top:1rem;">
@@ -592,7 +614,7 @@
         </div>
 
         <footer>
-            <p>CuituNet Intra &mdash; Asiakashallintajärjestelmä</p>
+            <p id="footer-text">Noxus Intra &copy; 2026</p>
         </footer>
     </div>
 

script.js

@@ -136,6 +136,7 @@ async function checkAuth() {
             availableCompanies = data.companies || [];
             currentCompany = availableCompanies.find(c => c.id === data.company_id) || availableCompanies[0] || null;
             currentUserSignatures = data.signatures || {};
+            if (data.branding) applyBranding(data.branding);
             showDashboard();
         }
     } catch (e) { /* not logged in */ }
@@ -171,6 +172,7 @@ document.getElementById('btn-logout').addEventListener('click', async () => {
     document.getElementById('login-captcha').value = '';
     showLoginView();
     loadCaptcha();
+    loadBranding(); // Domain-pohjainen brändäys uudelleen
 });
 
 async function showDashboard() {
@@ -206,6 +208,11 @@ async function switchCompany(companyId) {
     try {
         await apiCall('company_switch', 'POST', { company_id: companyId });
         currentCompany = availableCompanies.find(c => c.id === companyId) || null;
+        // Päivitä brändäys vaihdetun yrityksen mukaan
+        try {
+            const auth = await apiCall('check_auth');
+            if (auth.branding) applyBranding(auth.branding);
+        } catch (e2) {}
         // Lataa uudelleen aktiivinen tab
         const hash = window.location.hash.replace('#', '') || 'customers';
         switchToTab(hash);
@@ -1837,6 +1844,20 @@ async function showCompanyDetail(id) {
     const comp = companiesTabData.find(c => c.id === id);
     document.getElementById('company-detail-title').textContent = (comp ? comp.nimi : id) + ' — Asetukset';
     document.getElementById('company-edit-nimi').value = comp ? comp.nimi : '';
+    // Brändäyskentät
+    document.getElementById('company-edit-subtitle').value = comp?.subtitle || '';
+    const color = comp?.primary_color || '#0f3460';
+    document.getElementById('company-edit-color').value = color;
+    document.getElementById('company-edit-color-text').value = color;
+    document.getElementById('company-edit-domains').value = (comp?.domains || []).join('\n');
+    // Logo-esikatselu
+    const logoPreview = document.getElementById('company-logo-preview');
+    if (comp?.logo_file) {
+        logoPreview.src = 'api.php?action=company_logo&company_id=' + encodeURIComponent(id) + '&t=' + Date.now();
+        logoPreview.style.display = '';
+    } else {
+        logoPreview.style.display = 'none';
+    }
 
     // Vaihda aktiivinen yritys jotta API-kutsut kohdistuvat oikein
     await apiCall('company_switch', 'POST', { company_id: id });
@@ -1853,18 +1874,60 @@ document.getElementById('btn-company-back').addEventListener('click', () => {
     renderCompaniesTable();
 });
 
-document.getElementById('btn-save-company-name').addEventListener('click', async () => {
+// Synkronoi color picker <-> text input
+document.getElementById('company-edit-color').addEventListener('input', function() {
+    document.getElementById('company-edit-color-text').value = this.value;
+});
+document.getElementById('company-edit-color-text').addEventListener('input', function() {
+    if (/^#[0-9a-fA-F]{6}$/.test(this.value)) {
+        document.getElementById('company-edit-color').value = this.value;
+    }
+});
+
+// Logo-upload
+document.getElementById('company-logo-upload').addEventListener('change', async function() {
+    if (!this.files[0] || !currentCompanyDetail) return;
+    const formData = new FormData();
+    formData.append('logo', this.files[0]);
+    formData.append('company_id', currentCompanyDetail);
+    try {
+        const res = await fetch('api.php?action=company_logo_upload', { method: 'POST', body: formData, credentials: 'include' });
+        const data = await res.json();
+        if (!res.ok) throw new Error(data.error || 'Virhe');
+        // Päivitä preview
+        const preview = document.getElementById('company-logo-preview');
+        preview.src = data.logo_url + '&t=' + Date.now();
+        preview.style.display = '';
+        // Päivitä paikallinen data
+        const comp = companiesTabData.find(c => c.id === currentCompanyDetail);
+        if (comp) comp.logo_file = data.logo_file;
+    } catch (e) { alert(e.message); }
+    this.value = ''; // Reset file input
+});
+
+document.getElementById('btn-save-company-settings').addEventListener('click', async () => {
     const nimi = document.getElementById('company-edit-nimi').value.trim();
     if (!nimi) return;
+    const subtitle = document.getElementById('company-edit-subtitle').value.trim();
+    const primary_color = document.getElementById('company-edit-color').value;
+    const domainsText = document.getElementById('company-edit-domains').value;
+    const domains = domainsText.split('\n').map(d => d.trim()).filter(d => d);
     try {
-        await apiCall('company_update', 'POST', { id: currentCompanyDetail, nimi });
-        alert('Nimi tallennettu!');
+        await apiCall('company_update', 'POST', { id: currentCompanyDetail, nimi, subtitle, primary_color, domains });
+        alert('Asetukset tallennettu!');
         // Päivitä paikalliset tiedot
         const comp = companiesTabData.find(c => c.id === currentCompanyDetail);
-        if (comp) comp.nimi = nimi;
+        if (comp) { comp.nimi = nimi; comp.subtitle = subtitle; comp.primary_color = primary_color; comp.domains = domains; }
         const avail = availableCompanies.find(c => c.id === currentCompanyDetail);
         if (avail) avail.nimi = nimi;
         populateCompanySelector();
+        // Jos tämä on aktiivinen yritys → päivitä brändäys heti
+        if (currentCompany && currentCompany.id === currentCompanyDetail) {
+            applyBranding({
+                nimi, subtitle, primary_color,
+                logo_url: comp?.logo_file ? 'api.php?action=company_logo&company_id=' + encodeURIComponent(currentCompanyDetail) + '&t=' + Date.now() : ''
+            });
+        }
     } catch (e) { alert(e.message); }
 });
 
@@ -1985,6 +2048,59 @@ async function toggleCompanyUser(userId, companyId, add) {
     } catch (e) { alert(e.message); }
 }
 
+// ==================== BRANDING ====================
+
+function applyBranding(branding) {
+    const color = branding.primary_color || '#0f3460';
+    const nimi = branding.nimi || 'Noxus Intra';
+    const subtitle = branding.subtitle || '';
+    const logoUrl = branding.logo_url || '';
+
+    // CSS-muuttuja
+    document.documentElement.style.setProperty('--primary-color', color);
+    // Laske tumma variantti
+    document.documentElement.style.setProperty('--primary-dark', color);
+
+    // Login-sivu
+    const loginLogo = document.getElementById('login-logo');
+    const loginTitle = document.getElementById('login-title');
+    const loginSubtitle = document.getElementById('login-subtitle');
+    if (loginLogo) {
+        if (logoUrl) { loginLogo.src = logoUrl; loginLogo.style.display = ''; }
+        else { loginLogo.style.display = 'none'; }
+    }
+    if (loginTitle) loginTitle.textContent = nimi;
+    if (loginSubtitle) loginSubtitle.textContent = subtitle || 'Kirjaudu sisään';
+    // Muut login-boxien otsikot
+    document.querySelectorAll('.login-brand-title').forEach(el => el.textContent = nimi);
+
+    // Header
+    const headerLogo = document.getElementById('header-logo');
+    const headerIcon = document.getElementById('header-brand-icon');
+    const headerTitle = document.getElementById('header-title');
+    const headerSubtitle = document.getElementById('header-subtitle');
+    if (headerLogo) {
+        if (logoUrl) { headerLogo.src = logoUrl; headerLogo.style.display = ''; if (headerIcon) headerIcon.style.display = 'none'; }
+        else { headerLogo.style.display = 'none'; if (headerIcon) headerIcon.style.display = ''; }
+    }
+    if (headerTitle) headerTitle.textContent = nimi;
+    if (headerSubtitle) headerSubtitle.textContent = subtitle || 'Hallintapaneeli';
+
+    // Sivun title
+    document.title = nimi;
+}
+
+async function loadBranding() {
+    try {
+        const data = await apiCall('branding');
+        applyBranding(data);
+    } catch (e) {
+        // Oletusbrändäys
+        applyBranding({ nimi: 'Noxus Intra', primary_color: '#0f3460', subtitle: 'Hallintapaneeli', logo_url: '' });
+    }
+}
+
 // Init
+loadBranding();
 loadCaptcha();
 checkAuth();

style.css

@@ -1,3 +1,10 @@
+:root {
+    --primary-color: #0f3460;
+    --primary-dark: #16213e;
+    --primary-light: color-mix(in srgb, var(--primary-color) 10%, white);
+    --primary-hover: color-mix(in srgb, var(--primary-color) 85%, black);
+}
+
 * {
     margin: 0;
     padding: 0;
@@ -17,7 +24,7 @@ body {
     align-items: center;
     justify-content: center;
     min-height: 100vh;
-    background: linear-gradient(135deg, #0f3460, #16213e);
+    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
 }
 
 .login-box {
@@ -34,7 +41,7 @@ body {
 .login-box h1 {
     font-size: 1.8rem;
     margin-bottom: 0.5rem;
-    color: #0f3460;
+    color: var(--primary-color);
 }
 
 .login-box p {
@@ -54,13 +61,13 @@ body {
 
 .login-box input:focus {
     outline: none;
-    border-color: #0f3460;
+    border-color: var(--primary-color);
 }
 
 .login-box button {
     width: 100%;
     padding: 12px;
-    background: #0f3460;
+    background: var(--primary-color);
     color: #fff;
     border: none;
     border-radius: 8px;
@@ -70,7 +77,7 @@ body {
 }
 
 .login-box button:hover {
-    background: #16213e;
+    background: var(--primary-dark);
 }
 
 .error {
@@ -88,7 +95,7 @@ body {
 .forgot-link {
     display: inline-block;
     margin-top: 1rem;
-    color: #0f3460;
+    color: var(--primary-color);
     font-size: 0.85rem;
     text-decoration: none;
     opacity: 0.7;
@@ -110,7 +117,7 @@ body {
 .captcha-question {
     font-size: 1.1rem;
     font-weight: 700;
-    color: #0f3460;
+    color: var(--primary-color);
     white-space: nowrap;
     min-width: 120px;
     text-align: center;
@@ -127,7 +134,7 @@ body {
 
 /* Header */
 header {
-    background: linear-gradient(135deg, #0f3460, #16213e);
+    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
     color: #fff;
     padding: 1rem 2rem;
     display: flex;
@@ -221,7 +228,7 @@ header {
 }
 
 .sidebar-stats .stat-card.highlight {
-    background: #0f3460;
+    background: var(--primary-color);
     color: #fff;
 }
 
@@ -253,7 +260,7 @@ header {
 }
 
 .stat-highlight {
-    color: #0f3460;
+    color: var(--primary-color);
 }
 
 .sidebar-stats .stat-card.trivia .stat-value {
@@ -285,7 +292,7 @@ header {
 
 .speed-item.top {
     font-weight: 700;
-    color: #0f3460;
+    color: var(--primary-color);
 }
 
 .speed-bar {
@@ -297,7 +304,7 @@ header {
 }
 
 .speed-item.top .speed-bar {
-    background: #0f3460;
+    background: var(--primary-color);
 }
 
 /* Toolbar */
@@ -331,7 +338,7 @@ header {
 
 .search-bar input:focus {
     outline: none;
-    border-color: #0f3460;
+    border-color: var(--primary-color);
     box-shadow: 0 0 0 3px rgba(15,52,96,0.1);
 }
 
@@ -350,7 +357,7 @@ table {
 }
 
 thead th {
-    background: #16213e;
+    background: var(--primary-dark);
     color: #fff;
     padding: 11px 14px;
     text-align: left;
@@ -401,7 +408,7 @@ tbody td {
 
 .price-cell {
     font-weight: 700;
-    color: #0f3460;
+    color: var(--primary-color);
 }
 
 .actions-cell {
@@ -460,7 +467,7 @@ tbody td {
 
 #total-billing {
     font-size: 0.95rem;
-    color: #0f3460;
+    color: var(--primary-color);
 }
 
 /* Footer */
@@ -604,7 +611,7 @@ footer {
 
 .modal-header h2 {
     font-size: 1.3rem;
-    color: #0f3460;
+    color: var(--primary-color);
 }
 
 .modal-close {
@@ -635,7 +642,7 @@ form {
 
 form h3 {
     font-size: 0.95rem;
-    color: #0f3460;
+    color: var(--primary-color);
     margin: 1.25rem 0 0.75rem;
     padding-bottom: 0.5rem;
     border-bottom: 2px solid #f0f2f5;
@@ -688,7 +695,7 @@ form h3:first-of-type {
 .form-group textarea:focus,
 .form-group select:focus {
     outline: none;
-    border-color: #0f3460;
+    border-color: var(--primary-color);
     box-shadow: 0 0 0 3px rgba(15,52,96,0.1);
 }
 
@@ -704,7 +711,7 @@ form h3:first-of-type {
 .checkbox-label input[type="checkbox"] {
     width: 16px;
     height: 16px;
-    accent-color: #0f3460;
+    accent-color: var(--primary-color);
 }
 
 .form-actions {
@@ -744,7 +751,7 @@ form h3:first-of-type {
 .liittyma-row-title {
     font-size: 0.8rem;
     font-weight: 600;
-    color: #0f3460;
+    color: var(--primary-color);
 }
 
 /* Detail view */
@@ -762,7 +769,7 @@ form h3:first-of-type {
 
 .detail-section h3 {
     font-size: 0.95rem;
-    color: #0f3460;
+    color: var(--primary-color);
     margin-bottom: 0.75rem;
     padding-bottom: 0.5rem;
     border-bottom: 2px solid #f0f2f5;
@@ -794,7 +801,7 @@ form h3:first-of-type {
 }
 
 .detail-value a {
-    color: #0f3460;
+    color: var(--primary-color);
     text-decoration: none;
 }
 
@@ -820,7 +827,7 @@ span.empty {
 .liittyma-num {
     font-size: 0.75rem;
     font-weight: 700;
-    color: #0f3460;
+    color: var(--primary-color);
     margin-bottom: 0.4rem;
     text-transform: uppercase;
     letter-spacing: 0.5px;
@@ -830,7 +837,7 @@ span.empty {
     text-align: right;
     font-weight: 700;
     font-size: 0.95rem;
-    color: #0f3460;
+    color: var(--primary-color);
     margin-top: 0.5rem;
     padding-top: 0.5rem;
     border-top: 2px solid #e8ebf0;
@@ -869,7 +876,7 @@ span.empty {
 .file-name {
     font-size: 0.9rem;
     font-weight: 500;
-    color: #0f3460;
+    color: var(--primary-color);
     text-decoration: none;
     overflow: hidden;
     text-overflow: ellipsis;
@@ -995,12 +1002,12 @@ span.empty {
 }
 
 .tab:hover {
-    color: #0f3460;
+    color: var(--primary-color);
 }
 
 .tab.active {
-    color: #0f3460;
-    border-bottom-color: #0f3460;
+    color: var(--primary-color);
+    border-bottom-color: var(--primary-color);
 }
 
 .tab-content {
@@ -1023,7 +1030,7 @@ span.empty {
 }
 
 .role-admin {
-    background: #0f3460;
+    background: var(--primary-color);
     color: #fff;
 }
 
@@ -1257,7 +1264,7 @@ span.empty {
 
 .ticket-reply-form textarea:focus {
     outline: none;
-    border-color: #0f3460;
+    border-color: var(--primary-color);
     box-shadow: 0 0 0 3px rgba(15, 52, 96, 0.1);
 }
 
@@ -1279,9 +1286,9 @@ span.empty {
 }
 
 .btn-reply-tab.active {
-    color: #0f3460;
+    color: var(--primary-color);
     background: #fff;
-    border-color: #0f3460;
+    border-color: var(--primary-color);
 }
 
 /* Ticket tags */
@@ -1339,7 +1346,7 @@ span.empty {
     border-radius: 6px;
     font-size: 0.82rem;
     font-weight: 600;
-    color: #0f3460;
+    color: var(--primary-color);
     background: #fff;
     cursor: pointer;
     transition: border-color 0.2s;
@@ -1347,7 +1354,7 @@ span.empty {
 
 .company-selector:hover,
 .company-selector:focus {
-    border-color: #0f3460;
+    border-color: var(--primary-color);
     outline: none;
 }
 
@@ -1357,7 +1364,7 @@ span.empty {
 }
 
 .mailbox-item:hover {
-    border-color: #0f3460 !important;
+    border-color: var(--primary-color) !important;
 }
 
 /* Company badge */