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/datepicker.less

@@ -0,0 +1,117 @@
+//
+// Dependencies
+// --------------------------------------------------
+
+@import "global.less";
+
+//
+// Date Picker
+// --------------------------------------------------
+
+@import "datepicker.date.less";
+@import "datepicker.time.less";
+
+.field-datepicker {
+
+}
+
+.pika-single {
+    border-radius: @border-radius-base;
+    font-size: 12px;
+    margin-top: 5px;
+    z-index: @zindex-datepicker;
+    font-family: @font-family-sans-serif;
+    width: 310px;
+
+    &.is-bound {
+        .box-shadow(@overlay-box-shadow);
+    }
+
+    abbr {
+        border-bottom: none;
+    }
+    .pika-button {
+        border-radius: 999px !important;
+        text-align: center;
+        width: 29px;
+        height: 29px;
+        margin: 3px;
+        background: transparent;
+    }
+    .is-today .pika-button {
+        background: #ddd;
+        font-weight: bold;
+        color: @color-datepicker-today-text;
+    }
+
+    .is-selected .pika-button {
+        box-shadow: none;
+        background: @color-datepicker-selected-bg;
+    }
+
+    .pika-button:hover {
+        color: @color-datepicker-hover-text !important;
+        background: @color-datepicker-hover-bg !important;
+    }
+
+    .pika-label {
+        font-weight: normal;
+    }
+
+    .pika-table th {
+        text-transform: uppercase;
+        font-weight: normal;
+        line-height: 30px;
+        font-size: @font-size-base - 3;
+    }
+
+    .pika-footer {
+        .pika-label {
+            font-size: @font-size-base - 3;
+        }
+    }
+}
+
+.clockpicker-popover {
+    z-index: @zindex-datepicker;
+    .box-shadow(@overlay-box-shadow);
+    border-radius: @border-radius-base;
+
+    .popover-title {
+        font-size: 20px;
+        font-weight: normal;
+        border: none;
+    }
+
+    &.top {
+        margin-top: -5px;
+    }
+    &.right {
+        margin-left: 5px;
+    }
+    &.bottom {
+        margin-top: 5px;
+    }
+    &.left {
+        margin-left: -5px;
+    }
+
+    > .arrow {
+        display: none;
+    }
+}
+
+.clockpicker-plate {
+    border: none;
+}
+
+.clockpicker-hours .clockpicker-tick {
+    font-size: 12px;
+
+    &.tick-inner {
+        font-size: 16px;
+    }
+}
+.clockpicker-minutes .clockpicker-tick {
+    font-size: 16px;
+}