feat: VivesPOS landing on Winter CMS 1.2 — theme + plugin + Dockerfile

- Base: wintercms/winter branch 1.2 (full framework)
- Theme vivespos: Canvas 7 + Bootstrap 5 CDN, custom CSS
- Layout: deferred GTM/GA4 tracking, JSON-LD SoftwareApplication
- Partials: hero (offline-first), features, modes (offline/nube toggle),
  screenshots, pricing (3 planes), comparison, FAQ, CTA
- Plugin VivesPOS.Site with ContactForm
- Dockerfile: PHP 8.2 Apache, port 80, healthcheck
- Added winter/wn-pages, blog, sitemap, seo plugins
- Active theme set to vivespos

modules/system/assets/ui/less/button.less

@@ -0,0 +1,191 @@
+//
+// Dependencies
+// --------------------------------------------------
+
+@import "global.less";
+
+//
+// Buttons
+// --------------------------------------------------
+
+@import "button.base.less";
+@import "button.groups.less";
+
+//
+// Buttons
+// --------------------------------------------------
+
+.btn {
+    font-size: @font-size-base - 1;
+    outline: none !important;
+    .box-shadow(~"inset 0 -2px 0 rgba(0,0,0,.15)");
+
+    &[disabled] {
+        color: rgba(255,255,255,.6);
+    }
+
+    &.active,
+    &:active {
+        .box-shadow(inset 0 1px 0 rgba(0,0,0,.3));
+    }
+}
+
+//
+// Buttons with icons
+//
+
+.btn {
+    i[class^="icon-"],
+    i[class*=" icon-"] {
+        opacity: .6;
+
+    }
+
+    &.on,
+    &:hover,
+    &:focus,
+    &.focus {
+        i[class^="icon-"],
+        i[class*=" icon-"] {
+            opacity: 1;
+        }
+    }
+
+    &[class^="wn-icon-"],
+    &[class*=" wn-icon-"],
+    &[class^="oc-icon-"],
+    &[class*=" oc-icon-"] {
+        &:before {
+            font-size: 14px;
+            line-height: 14px;
+            position: relative;
+            opacity: .6;
+        }
+
+        &.on,
+        &:hover,
+        &:focus,
+        &.focus {
+            &:before {
+                opacity: 1;
+            }
+        }
+    }
+}
+
+.btn-secondary {
+    .box-shadow(~"inset 0 -2px 0 rgba(0,0,0,.1)");
+
+    &[disabled] {
+        color: rgba(0,0,0,.6);
+    }
+
+    &.active,
+    &:active {
+        .box-shadow(inset 0 1px 0 rgba(0,0,0,.2));
+    }
+}
+
+.btn-link {
+    .box-shadow(none) !important;
+    text-shadow: none !important;
+}
+
+.btn-group {
+    .btn {
+        border-right: 1px solid rgba(0,0,0,0.09);
+        margin-left: 0 !important;
+
+        &:last-child, &.last {
+            border-right: none;
+        }
+
+        &.last {
+            .border-right-radius(@border-radius-base) !important;
+        }
+    }
+
+    > .dropdown {
+        float: left;
+
+        &:not(:last-child, .last) > .btn {
+            border-right: 1px solid rgba(0,0,0,0.09);
+            .border-right-radius(0) !important;
+        }
+
+        &:not(:first-child) > .btn {
+            .border-left-radius(0) !important;
+        }
+
+        &.last {
+            .btn {
+                border-right: none;
+            }
+        }
+    }
+}
+
+.btn, .btn-group {
+    &.offset-right {
+        margin-right: 10px;
+    }
+}
+
+.btn-icon {
+    display: inline-block;
+    height: 36px;
+    font-size: 21px;
+    background: transparent;
+    border: none;
+    outline: none;
+
+    &:before {
+        display: block;
+        color: @color-icon-btn-default;
+    }
+
+    &:hover:before {
+        color: @link-color;
+    }
+
+    &.danger:hover:before {
+        color: @color-btn-danger;
+    }
+
+    &.pull-right:before {
+        margin-right: 0;
+    }
+
+    &.margin-left {
+        margin-left: 5px;
+    }
+
+    &.small {
+        font-size: 17px;
+        height: 17px;
+        line-height: 15px;
+    }
+
+    &.larger {
+        font-size: 21px;
+        height: 21px;
+        line-height: 17px;
+    }
+}
+
+.btn-text {
+    font-size: @font-size-base;
+    padding: 8px 0;
+    vertical-align: middle;
+    display: inline-block;
+    color: @btn-default-bg;
+
+    a {
+        color: @btn-default-bg;
+        text-decoration: underline;
+
+        &:hover {
+            color: @link-color;
+        }
+    }
+}