Add Literata and Inter fonts, title-screen audio

Fonts (SIL Open Font License; licenses preserved alongside the files):

  static/fonts/Literata-Regular.ttf   body — 400 weight
  static/fonts/Literata-Italic.ttf    body — 400 italic
  static/fonts/Literata-Medium.ttf    body — 500 weight
  static/fonts/Inter-Regular.ttf      UI chrome — 400 weight
  static/fonts/Inter-Medium.ttf       UI chrome — 500 weight
  static/fonts/Literata.OFL.txt
  static/fonts/Inter.OFL.txt

Google Fonts' Inter distribution is optical-size-tiered — the 18pt
variants are tuned for the 13–18px range our UI uses, so they're
aliased as the base "Inter" family. Crimson Pro (memoir body) is not
yet sourced; its @font-face block and preload hint both drop out of
app.css / app.html for now and land when the memoir screen is built.

app.css swaps the woff2 references for ttf (format: 'truetype'), and
the @font-face comment now reflects the reality of what's on disk.
app.html preloads the ttf variants.

svelte.config.js drops the prerender handleHttpError shim that was
tolerating missing /fonts/ 404s — the files exist now, so the build
should fail loudly if any preloaded font goes missing.

Title-screen audio:

  static/audio/title/piano-relaxing.mp3           — "Piano Relaxing"
                                                    by atlasaudio,
                                                    Pixabay Content
                                                    License
  static/audio/title/piano-relaxing.license.txt   — Pixabay license
                                                    certificate

Note on design: docs/17-first-hour.md said "no menu music" on the
title screen. Running with this addition per the director's current
direction (the design docs reflect an earlier stage of thinking).

12 files changed, 234 insertions, 36 deletions

diff --git a/app/app.html b/app/app.html
index 328f243..5f5f1cb 100644
--- a/app/app.html
+++ b/app/app.html
@@ -10,9 +10,9 @@
     <link rel="icon" href="%sveltekit.assets%/favicon.svg" type="image/svg+xml" />
     <link rel="stylesheet" href="%sveltekit.assets%/css/app.css" />
 
-    <link rel="preload" href="%sveltekit.assets%/fonts/Literata-Regular.woff2" as="font" type="font/woff2" crossorigin />
-    <link rel="preload" href="%sveltekit.assets%/fonts/Literata-Italic.woff2" as="font" type="font/woff2" crossorigin />
-    <link rel="preload" href="%sveltekit.assets%/fonts/Inter-Regular.woff2" as="font" type="font/woff2" crossorigin />
+    <link rel="preload" href="%sveltekit.assets%/fonts/Literata-Regular.ttf" as="font" type="font/ttf" crossorigin />
+    <link rel="preload" href="%sveltekit.assets%/fonts/Literata-Italic.ttf" as="font" type="font/ttf" crossorigin />
+    <link rel="preload" href="%sveltekit.assets%/fonts/Inter-Regular.ttf" as="font" type="font/ttf" crossorigin />
 
     <title>Hollowdark</title>
     %sveltekit.head%
diff --git a/static/audio/title/piano-relaxing.license.txt b/static/audio/title/piano-relaxing.license.txt
new file mode 100644
index 0000000..2bc5da3
--- /dev/null
+++ b/static/audio/title/piano-relaxing.license.txt
@@ -0,0 +1,34 @@
+PIXABAY LICENSE CERTIFICATE
+==============================================
+
+This document confirms the download of an audio file pursuant to the Content License as defined in the Pixabay Terms of Service available at https://pixabay.com/service/terms/
+
+Licensor's Username:
+https://pixabay.com/users/atlasaudio-54514918/
+
+Licensee:
+u_cbmfevvluk
+
+Audio File Title:
+Piano Relaxing
+
+Audio File URL:
+https://pixabay.com/music/ambient-piano-relaxing-510242/
+
+Audio File ID:
+510242
+
+Date of download:
+2026-04-22 01:19:46 UTC
+
+Pixabay, a Canva Germany GmbH brand
+Pappelallee 78/79
+10437 Berlin
+Germany
+
+Pixabay is a user-contributed stock content website. The above-named Licensor is responsible for this audio file. Pixabay monitors uploaded audio files only to a reasonable extent. Pixabay cannot be held responsible for the acts or omissions of its users and does not represent or warrant that any required third-party consents or licenses have been obtained.
+
+For any queries related to this document please contact Pixabay via [email protected].
+
+
+==== THIS IS NOT A TAX RECEIPT OR INVOICE ====
\ No newline at end of file
diff --git a/static/audio/title/piano-relaxing.mp3 b/static/audio/title/piano-relaxing.mp3
new file mode 100644
index 0000000..44e26c9
--- /dev/null
+++ b/static/audio/title/piano-relaxing.mp3
diff --git a/static/css/app.css b/static/css/app.css
index 0714faf..6ea23f1 100644
--- a/static/css/app.css
+++ b/static/css/app.css
@@ -176,9 +176,12 @@ button:focus-visible {
 /* ---------------------------------------------------------------------------
  * Font-face declarations
  *
- * Font files ship in static/fonts/ and are sourced separately (Literata,
- * Inter, Crimson Pro — subset to Latin basics + punctuation). Until they
- * land, the body falls back through the font-family cascade above.
+ * Literata and Inter ship in static/fonts/ under the SIL Open Font License
+ * (see static/fonts/Literata.OFL.txt and Inter.OFL.txt). Inter's static
+ * distribution is optical-size-tiered; the 18pt variants are tuned for
+ * the 13–18px range our UI uses and are aliased here as the base "Inter".
+ * Crimson Pro (memoir body) is not yet sourced — the memoir view will add
+ * its @font-face block when the screen is built.
  * ------------------------------------------------------------------------ */
 
 @font-face {
@@ -186,7 +189,7 @@ button:focus-visible {
   font-style: normal;
   font-weight: 400;
   font-display: swap;
-  src: url('../fonts/Literata-Regular.woff2') format('woff2');
+  src: url('../fonts/Literata-Regular.ttf') format('truetype');
 }
 
 @font-face {
@@ -194,7 +197,7 @@ button:focus-visible {
   font-style: italic;
   font-weight: 400;
   font-display: swap;
-  src: url('../fonts/Literata-Italic.woff2') format('woff2');
+  src: url('../fonts/Literata-Italic.ttf') format('truetype');
 }
 
 @font-face {
@@ -202,7 +205,7 @@ button:focus-visible {
   font-style: normal;
   font-weight: 500;
   font-display: swap;
-  src: url('../fonts/Literata-Medium.woff2') format('woff2');
+  src: url('../fonts/Literata-Medium.ttf') format('truetype');
 }
 
 @font-face {
@@ -210,7 +213,7 @@ button:focus-visible {
   font-style: normal;
   font-weight: 400;
   font-display: swap;
-  src: url('../fonts/Inter-Regular.woff2') format('woff2');
+  src: url('../fonts/Inter-Regular.ttf') format('truetype');
 }
 
 @font-face {
@@ -218,21 +221,5 @@ button:focus-visible {
   font-style: normal;
   font-weight: 500;
   font-display: swap;
-  src: url('../fonts/Inter-Medium.woff2') format('woff2');
-}
-
-@font-face {
-  font-family: 'Crimson Pro';
-  font-style: normal;
-  font-weight: 400;
-  font-display: swap;
-  src: url('../fonts/CrimsonPro-Regular.woff2') format('woff2');
-}
-
-@font-face {
-  font-family: 'Crimson Pro';
-  font-style: italic;
-  font-weight: 400;
-  font-display: swap;
-  src: url('../fonts/CrimsonPro-Italic.woff2') format('woff2');
+  src: url('../fonts/Inter-Medium.ttf') format('truetype');
 }
diff --git a/static/fonts/Inter-Medium.ttf b/static/fonts/Inter-Medium.ttf
new file mode 100644
index 0000000..71d9017
--- /dev/null
+++ b/static/fonts/Inter-Medium.ttf
diff --git a/static/fonts/Inter-Regular.ttf b/static/fonts/Inter-Regular.ttf
new file mode 100644
index 0000000..ce097c8
--- /dev/null
+++ b/static/fonts/Inter-Regular.ttf
diff --git a/static/fonts/Inter.OFL.txt b/static/fonts/Inter.OFL.txt
new file mode 100644
index 0000000..d05ec4b
--- /dev/null
+++ b/static/fonts/Inter.OFL.txt
@@ -0,0 +1,93 @@
+Copyright 2020 The Inter Project Authors (https://github.com/rsms/inter)

+

+This Font Software is licensed under the SIL Open Font License, Version 1.1.

+This license is copied below, and is also available with a FAQ at:

+https://openfontlicense.org

+

+

+-----------------------------------------------------------

+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007

+-----------------------------------------------------------

+

+PREAMBLE

+The goals of the Open Font License (OFL) are to stimulate worldwide

+development of collaborative font projects, to support the font creation

+efforts of academic and linguistic communities, and to provide a free and

+open framework in which fonts may be shared and improved in partnership

+with others.

+

+The OFL allows the licensed fonts to be used, studied, modified and

+redistributed freely as long as they are not sold by themselves. The

+fonts, including any derivative works, can be bundled, embedded, 

+redistributed and/or sold with any software provided that any reserved

+names are not used by derivative works. The fonts and derivatives,

+however, cannot be released under any other type of license. The

+requirement for fonts to remain under this license does not apply

+to any document created using the fonts or their derivatives.

+

+DEFINITIONS

+"Font Software" refers to the set of files released by the Copyright

+Holder(s) under this license and clearly marked as such. This may

+include source files, build scripts and documentation.

+

+"Reserved Font Name" refers to any names specified as such after the

+copyright statement(s).

+

+"Original Version" refers to the collection of Font Software components as

+distributed by the Copyright Holder(s).

+

+"Modified Version" refers to any derivative made by adding to, deleting,

+or substituting -- in part or in whole -- any of the components of the

+Original Version, by changing formats or by porting the Font Software to a

+new environment.

+

+"Author" refers to any designer, engineer, programmer, technical

+writer or other person who contributed to the Font Software.

+

+PERMISSION & CONDITIONS

+Permission is hereby granted, free of charge, to any person obtaining

+a copy of the Font Software, to use, study, copy, merge, embed, modify,

+redistribute, and sell modified and unmodified copies of the Font

+Software, subject to the following conditions:

+

+1) Neither the Font Software nor any of its individual components,

+in Original or Modified Versions, may be sold by itself.

+

+2) Original or Modified Versions of the Font Software may be bundled,

+redistributed and/or sold with any software, provided that each copy

+contains the above copyright notice and this license. These can be

+included either as stand-alone text files, human-readable headers or

+in the appropriate machine-readable metadata fields within text or

+binary files as long as those fields can be easily viewed by the user.

+

+3) No Modified Version of the Font Software may use the Reserved Font

+Name(s) unless explicit written permission is granted by the corresponding

+Copyright Holder. This restriction only applies to the primary font name as

+presented to the users.

+

+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font

+Software shall not be used to promote, endorse or advertise any

+Modified Version, except to acknowledge the contribution(s) of the

+Copyright Holder(s) and the Author(s) or with their explicit written

+permission.

+

+5) The Font Software, modified or unmodified, in part or in whole,

+must be distributed entirely under this license, and must not be

+distributed under any other license. The requirement for fonts to

+remain under this license does not apply to any document created

+using the Font Software.

+

+TERMINATION

+This license becomes null and void if any of the above conditions are

+not met.

+

+DISCLAIMER

+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF

+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT

+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE

+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL

+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM

+OTHER DEALINGS IN THE FONT SOFTWARE.

diff --git a/static/fonts/Literata-Italic.ttf b/static/fonts/Literata-Italic.ttf
new file mode 100644
index 0000000..5b4f2f6
--- /dev/null
+++ b/static/fonts/Literata-Italic.ttf
diff --git a/static/fonts/Literata-Medium.ttf b/static/fonts/Literata-Medium.ttf
new file mode 100644
index 0000000..73c0327
--- /dev/null
+++ b/static/fonts/Literata-Medium.ttf
diff --git a/static/fonts/Literata-Regular.ttf b/static/fonts/Literata-Regular.ttf
new file mode 100644
index 0000000..acfc1a6
--- /dev/null
+++ b/static/fonts/Literata-Regular.ttf
diff --git a/static/fonts/Literata.OFL.txt b/static/fonts/Literata.OFL.txt
new file mode 100644
index 0000000..6064f66
--- /dev/null
+++ b/static/fonts/Literata.OFL.txt
@@ -0,0 +1,93 @@
+Copyright 2017 The Literata Project Authors (https://github.com/googlefonts/literata)

+

+This Font Software is licensed under the SIL Open Font License, Version 1.1.

+This license is copied below, and is also available with a FAQ at:

+https://openfontlicense.org

+

+

+-----------------------------------------------------------

+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007

+-----------------------------------------------------------

+

+PREAMBLE

+The goals of the Open Font License (OFL) are to stimulate worldwide

+development of collaborative font projects, to support the font creation

+efforts of academic and linguistic communities, and to provide a free and

+open framework in which fonts may be shared and improved in partnership

+with others.

+

+The OFL allows the licensed fonts to be used, studied, modified and

+redistributed freely as long as they are not sold by themselves. The

+fonts, including any derivative works, can be bundled, embedded, 

+redistributed and/or sold with any software provided that any reserved

+names are not used by derivative works. The fonts and derivatives,

+however, cannot be released under any other type of license. The

+requirement for fonts to remain under this license does not apply

+to any document created using the fonts or their derivatives.

+

+DEFINITIONS

+"Font Software" refers to the set of files released by the Copyright

+Holder(s) under this license and clearly marked as such. This may

+include source files, build scripts and documentation.

+

+"Reserved Font Name" refers to any names specified as such after the

+copyright statement(s).

+

+"Original Version" refers to the collection of Font Software components as

+distributed by the Copyright Holder(s).

+

+"Modified Version" refers to any derivative made by adding to, deleting,

+or substituting -- in part or in whole -- any of the components of the

+Original Version, by changing formats or by porting the Font Software to a

+new environment.

+

+"Author" refers to any designer, engineer, programmer, technical

+writer or other person who contributed to the Font Software.

+

+PERMISSION & CONDITIONS

+Permission is hereby granted, free of charge, to any person obtaining

+a copy of the Font Software, to use, study, copy, merge, embed, modify,

+redistribute, and sell modified and unmodified copies of the Font

+Software, subject to the following conditions:

+

+1) Neither the Font Software nor any of its individual components,

+in Original or Modified Versions, may be sold by itself.

+

+2) Original or Modified Versions of the Font Software may be bundled,

+redistributed and/or sold with any software, provided that each copy

+contains the above copyright notice and this license. These can be

+included either as stand-alone text files, human-readable headers or

+in the appropriate machine-readable metadata fields within text or

+binary files as long as those fields can be easily viewed by the user.

+

+3) No Modified Version of the Font Software may use the Reserved Font

+Name(s) unless explicit written permission is granted by the corresponding

+Copyright Holder. This restriction only applies to the primary font name as

+presented to the users.

+

+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font

+Software shall not be used to promote, endorse or advertise any

+Modified Version, except to acknowledge the contribution(s) of the

+Copyright Holder(s) and the Author(s) or with their explicit written

+permission.

+

+5) The Font Software, modified or unmodified, in part or in whole,

+must be distributed entirely under this license, and must not be

+distributed under any other license. The requirement for fonts to

+remain under this license does not apply to any document created

+using the Font Software.

+

+TERMINATION

+This license becomes null and void if any of the above conditions are

+not met.

+

+DISCLAIMER

+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF

+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT

+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE

+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL

+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM

+OTHER DEALINGS IN THE FONT SOFTWARE.

diff --git a/svelte.config.js b/svelte.config.js
index 64109df..9c3f3fe 100644
--- a/svelte.config.js
+++ b/svelte.config.js
@@ -20,15 +20,6 @@ const config = {
     paths: {
       base: BASE_PATH
     },
-    prerender: {
-      handleHttpError: ({ path, message }) => {
-        // Font files ship separately from the codebase (see static/css/app.css
-        // @font-face block). Tolerate missing font files during prerender so
-        // the build doesn't block until they land in static/fonts/.
-        if (path.includes('/fonts/')) return
-        throw new Error(message)
-      }
-    },
     files: {
       assets: 'static',
       appTemplate: 'app/app.html',