123

app/globals.css

@@ -114,6 +114,68 @@ body {
     letter-spacing: 0.05em;
 }
 
+/* Theme Toggle Button */
+.theme-toggle {
+    background: transparent;
+    border: 1px solid var(--border-color);
+    backdrop-filter: blur(8px);
+    -webkit-backdrop-filter: blur(8px);
+    border-radius: 9999px;
+    width: 38px;
+    height: 38px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    color: var(--text-secondary);
+    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+    overflow: hidden;
+    position: relative;
+}
+
+.theme-toggle:hover {
+    background: var(--bg-secondary);
+    color: var(--text-primary);
+    border-color: var(--text-muted);
+    box-shadow: 0 0 10px var(--accent-glow);
+}
+
+.theme-toggle-icon-wrapper {
+    position: relative;
+    width: 20px;
+    height: 20px;
+}
+
+.theme-toggle-sun,
+.theme-toggle-moon {
+    position: absolute;
+    top: 0;
+    left: 0;
+    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+/* Light Mode State */
+.theme-toggle.is-light .theme-toggle-sun {
+    opacity: 1;
+    transform: rotate(0deg) scale(1);
+}
+
+.theme-toggle.is-light .theme-toggle-moon {
+    opacity: 0;
+    transform: rotate(90deg) scale(0);
+}
+
+/* Dark Mode State */
+.theme-toggle.is-dark .theme-toggle-sun {
+    opacity: 0;
+    transform: rotate(-90deg) scale(0);
+}
+
+.theme-toggle.is-dark .theme-toggle-moon {
+    opacity: 1;
+    transform: rotate(0deg) scale(1);
+}
+
 .sidebar-nav {
     flex: 1;
     overflow-y: auto;
@@ -166,9 +228,16 @@ body {
 }
 
 .sidebar-section-arrow {
-    font-size: 0.6rem;
+    display: flex;
+    align-items: center;
+    justify-content: center;
     color: var(--text-muted);
-    transition: transform 0.2s ease;
+    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.sidebar-section-arrow svg {
+    width: 1rem;
+    height: 1rem;
 }
 
 .sidebar-section-arrow.open {
@@ -210,6 +279,30 @@ body {
     font-weight: 500;
 }
 
+/* --- DocPage container and hero --- */
+.doc-page-container {
+    max-width: 800px;
+    margin: 0 auto;
+}
+
+.doc-page-title {
+    font-size: 2.5rem;
+    font-weight: 800;
+    color: var(--text-primary);
+    letter-spacing: -0.03em;
+    line-height: 1.2;
+    margin: 0 0 1rem 0;
+}
+
+.doc-page-description {
+    font-size: 1.125rem;
+    color: var(--text-muted);
+    margin: 0 0 2.5rem 0;
+    line-height: 1.6;
+    border-bottom: 1px solid var(--border-color);
+    padding-bottom: 2rem;
+}
+
 /* --- DocContent (Markdown) Styles --- */
 .doc-article {
     color: var(--text-primary);
@@ -365,10 +458,4 @@ body {
     border: 0;
     border-top: 1px solid var(--border-color);
     margin: 3rem 0;
-}
-
-/* Title container wrapper inside article to strip Tailwind prose max-width constraint */
-article {
-    max-width: 800px;
-    margin: 0 auto;
 }