Merge option 2 homepage and visual language into the site

Rebuild the homepage on option 2's sections and effects (3D DNA, spinning
cube, giant words, fireworks journey, neon type, chrome ribbon) with copy
kept verbatim from the content document. Each venture now has its own 3D
object, the portfolio dashboard sits beside the DNA, the journey uses the
original stats row and the playbook keeps our book. Inner pages adopt the
same navy, glass and gradient skin, with dark as the default theme.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

static/licenses/three.js-MIT.txt

@@ -0,0 +1,21 @@
+The MIT License
+
+Copyright © 2010-2021 three.js authors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.