Implemented phase 2 for the POC prototype in the Website service.

Services/Website/Resources/Static/css/sign-in.css

@@ -0,0 +1,107 @@
+/* CCN — sign-in page. Drawn bare: no site header or footer. */
+
+.gate {
+  display: flex;
+  flex: 1 0 auto;
+  flex-direction: column;
+  width: 100%;
+  max-width: 438px;
+  margin: 0 auto;
+}
+
+.gate__bar {
+  position: relative;
+  display: flex;
+  flex-shrink: 0;
+  align-items: center;
+  justify-content: center;
+  height: 56px;
+  padding: 0 var(--space-1);
+}
+
+.gate__close {
+  position: absolute;
+  left: var(--space-1);
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: var(--control-md);
+  height: var(--control-md);
+  color: var(--ink);
+}
+
+.gate__wordmark {
+  font-family: var(--font-lettering);
+  font-size: 24px;
+  letter-spacing: 0.04em;
+  line-height: 1;
+}
+
+.gate__main {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-7);
+  padding: var(--space-5) var(--space-6) var(--space-6);
+}
+
+.gate__intro {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+}
+
+.gate__intro .type-eyebrow {
+  letter-spacing: 0.1em;
+}
+
+/* The heading stays at its phone size: the screen is a phone-width column at every breakpoint. */
+.gate__intro .type-h1 {
+  font-size: 36px;
+}
+
+.gate__lead {
+  color: var(--ink-soft);
+}
+
+.gate__form {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-7);
+}
+
+.gate__saved {
+  display: flex;
+  align-items: center;
+  gap: var(--space-3);
+  height: var(--control-lg);
+  padding: 0 var(--space-3);
+  border: 1px solid var(--line);
+  border-radius: var(--radius-sm);
+  background: var(--card);
+  box-shadow: var(--shadow-sheet);
+  font-size: 14px;
+}
+
+.gate__saved strong {
+  font-weight: 600;
+}
+
+.gate__saved-note {
+  color: var(--muted);
+}
+
+.gate__recover {
+  padding-top: var(--space-4);
+  font-size: 13px;
+  text-align: center;
+}
+
+.gate__recover a {
+  color: var(--muted);
+}
+
+@media (min-width: 600px) {
+  .gate {
+    padding-top: var(--space-10);
+  }
+}