style(copy): pages and layouts copy pass

src/pages/about.astro

@@ -53,7 +53,7 @@ const AUTHOR_SAMEAS     = ["https://github.com/Bissbert"];
 
       <h2>Maintainer</h2>
       <p>
-        <strong>{AUTHOR_NAME}</strong> — {AUTHOR_TITLE}.
+        <strong>{AUTHOR_NAME}</strong>, {AUTHOR_TITLE}.
         Contributions, corrections, and source citations from the gemmological
         community are welcomed via <a href={AUTHOR_SAMEAS[0]} rel="noopener noreferrer">GitHub</a>.
       </p>

src/pages/docs/cdl-examples.astro

@@ -252,7 +252,7 @@ cubic[m3m]:$oct + {100}@0.3 | twin(spinel_law)`} />
       <Card padding="md" class="mt-12 bg-crystal-50 border-crystal-200">
         <h3 class="text-lg font-semibold text-crystal-900 mt-0">Try These Examples</h3>
         <p class="text-crystal-700 mb-4">
-          Open the CDL Playground to experiment with these expressions and customize them.
+          Open the CDL Playground to experiment with these expressions and customise them.
         </p>
         <Button href="/playground" variant="primary" size="md">
           Open Playground

src/pages/index.astro

@@ -112,7 +112,7 @@ const iconPaths: Record<string, string> = {
           </h1>
           <p class="mt-6 text-lg text-slate-600 max-w-xl">
             {familyCount} minerals with FGA-accurate crystallographic data, rendered live from open-source code.
-            Study, practise, and reason about coloured gemstones &mdash; gallery, calculators, quiz, and timed exam included.
+            Study, practise, and reason about coloured gemstones: gallery, calculators, quiz, and timed exam included.
           </p>
           <div class="mt-8 flex flex-wrap gap-4">
             <Button variant="primary" size="lg">
@@ -128,7 +128,7 @@ const iconPaths: Record<string, string> = {
             </Button>
           </div>
           <p class="mt-4 text-sm text-slate-600">
-            Free and open-source &middot; No account required to learn or browse
+            Free and open-source &middot; Open access, no registration
           </p>
         </div>
 
@@ -152,8 +152,8 @@ const iconPaths: Record<string, string> = {
   <section class="py-24 bg-white">
     <Container size="xl" padding="none" class="px-4 sm:px-6 lg:px-8">
       <SectionHeader
-        title="Built for the full FGA curriculum &mdash; and the developers who work with it."
-        description="A comprehensive toolkit for FGA students, gemmologists, and crystal enthusiasts."
+        title="Built for the full FGA curriculum, and the developers who work with it."
+        description="A complete toolkit for FGA students, gemmologists, and crystal enthusiasts."
         client:load
       />
 

src/pages/tools/advanced.astro

@@ -32,7 +32,7 @@ const tools = [
       <header class="mb-8">
         <h1 class="text-3xl font-bold text-slate-900">Advanced Analysis</h1>
         <p class="text-slate-600 mt-2">
-          Treatment detection and proportion analysis — the two areas of advanced gemmological assessment that require correlating multiple lines of evidence rather than reading a single instrument.
+          Treatment detection and proportion analysis: the two areas of advanced gemmological assessment that require correlating multiple lines of evidence rather than reading a single instrument.
         </p>
       </header>
 
@@ -46,7 +46,7 @@ const tools = [
           <p>
             Treatment detection requires correlating multiple lines of evidence. Heat treatment
             in corundum leaves characteristic stress fractures around rutile inclusions and
-            healed fingerprints, but not all heated stones show these features — a clean,
+            healed fingerprints, but not all heated stones show these features; a clean,
             well-heated stone may show no internal evidence at all. Fracture filling in emerald
             suppresses the fingerprint inclusions that would otherwise be visible under
             magnification, but the filling material itself can be identified by its flash effect
@@ -58,13 +58,13 @@ const tools = [
           </p>
           <p>
             The treatment wizard on this page formalises this evidence-accumulation approach.
-            It covers 18 observable clues — including inclusion type, surface texture, colour
+            It covers 18 observable clues, including inclusion type, surface texture, colour
             distribution, spectral absorption anomalies, fluorescence pattern, and magnification
-            features — mapped against 11 treatment categories: heat, fracture filling, surface
+            features, mapped against 11 treatment categories: heat, fracture filling, surface
             coating, diffusion, irradiation, oiling, waxing, bleaching, impregnation, laser
             drilling, and flux healing. Each clue carries positive or negative evidence weights
             for each treatment type. Submit the clues you have observed and the wizard sums the
-            weights per treatment, producing a confidence-banded conclusion — high confidence
+            weights per treatment, producing a confidence-banded conclusion: high confidence
             when three or more independent indicators align, low confidence when evidence is
             mixed or a single clue stands alone. This mirrors the reasoning process used in
             major gemmological laboratories and makes the logic explicit rather than implicit.
@@ -79,8 +79,8 @@ const tools = [
             lowest-grading individual parameter. Enter the measured proportions from a
             proportion scope or grading report and the tool displays the per-parameter band for
             each value, highlights the limiting parameter, and returns the resulting cut grade.
-            Understanding which proportion is pulling the grade down — crown angle too shallow,
-            table too wide, or girdle too thick — gives a precise basis for cut-quality
+            Understanding which proportion is pulling the grade down (crown angle too shallow,
+            table too wide, or girdle too thick) gives a precise basis for cut-quality
             assessment and client communication.
           </p>
         </div>

src/pages/tools/conversions.astro

@@ -15,7 +15,7 @@ const tools = [
 
 <BaseLayout
   title="Unit Conversions"
-  description="Gemmological unit converters for weight (carat, gram, milligram), length (mm, inch), and temperature (Celsius, Fahrenheit) — covering the metric carat standard, decimal-point carat trade usage, and temperature correction for SG and RI measurements."
+  description="Gemmological unit converters for weight (carat, gram, milligram), length (mm, inch), and temperature (Celsius, Fahrenheit), covering the metric carat standard, decimal-point carat trade usage, and temperature correction for SG and RI measurements."
 >
   <ToolsSchema
     slot="head"
@@ -45,13 +45,13 @@ const tools = [
         <div class="prose prose-slate prose-sm mt-3 max-w-none">
           <p>
             The metric carat was standardised internationally in 1907 at exactly 200&nbsp;mg
-            (0.2&nbsp;g). Before that date, the carat varied by country — the old English carat
-            differed from the French, which differed from the Turkish — making gem weights in
+            (0.2&nbsp;g). Before that date, the carat varied by country; the old English carat
+            differed from the French, which differed from the Turkish, making gem weights in
             historical records difficult to compare. The 1907 standard fixed the unit absolutely,
             and today a 1.00&nbsp;ct stone means the same weight in every country. In trade, the
             carat is subdivided into 100 points: a 0.50&nbsp;ct stone is described as
             fifty points, a 0.35&nbsp;ct stone as thirty-five points. The weight converter on
-            this page handles carats, grams, milligrams, grains, and troy ounces — the full
+            this page handles carats, grams, milligrams, grains, and troy ounces, covering the full
             range of units encountered when reading historic inventory records, laboratory
             reports, and customs documentation.
           </p>

src/pages/tools/identification.astro

@@ -13,12 +13,12 @@ const tools = [
 
 <BaseLayout
   title="Gem Identification"
-  description="Systematic gem identification tool that filters 96 mineral families by refractive index, specific gravity, crystal system, and optic character — with natural, synthetic, simulant, and composite origin badges."
+  description="Systematic gem identification tool that filters 96 mineral families by refractive index, specific gravity, crystal system, and optic character, with natural, synthetic, simulant, and composite origin badges."
 >
   <ToolsSchema
     slot="head"
     name="Gemmological Gem Identification Tool"
-    description="Systematic gem identification by filtering the 96-family mineral database across refractive index, specific gravity, crystal system, and optic character, with origin badges distinguishing natural, synthetic, simulant, and composite stones."
+    description="Systematic gem identification by filtering the 96-family mineral database by refractive index, specific gravity, crystal system, and optic character, with origin badges distinguishing natural, synthetic, simulant, and composite stones."
     category="Identification"
     url="https://gemmology.dev/tools/identification"
     tools={tools}
@@ -43,12 +43,12 @@ const tools = [
         <div class="prose prose-slate prose-sm mt-3 max-w-none">
           <p>
             Systematic gem identification follows a fixed sequence to avoid confirmation bias.
-            Start with non-destructive observations — colour, transparency, lustre — then move
+            Start with non-destructive observations (colour, transparency, lustre), then move
             to refractive index, then specific gravity, then the spectroscope if the RI falls in
             an ambiguous range. Only after these quantitative steps should qualitative tests
             (Chelsea filter, fluorescence) be applied to confirm or refute a working hypothesis.
             This sequence matches the FGA Diploma practical examination protocol, and it matters
-            because qualitative tests are sensitive to treatment, coating, and imitation —
+            because qualitative tests are sensitive to treatment, coating, and imitation,
             whereas RI and SG are intrinsic physical constants of the material itself.
           </p>
           <p>
@@ -57,7 +57,7 @@ const tools = [
             if known from polariscope behaviour, and the optic character (singly refractive,
             uniaxial, or biaxial). Each parameter constrains the search independently, and the
             tool returns every family in the 96-entry mineral database that satisfies all the
-            criteria you supply simultaneously. You do not need to fill in every field — a single
+            criteria you supply simultaneously. You do not need to fill in every field; a single
             RI reading already eliminates the majority of species, and adding SG typically
             reduces the candidate list to three or fewer families. The underlying database
             includes all 93 natural mineral families as well as 13 synthetic, 11 simulant, and
@@ -70,16 +70,16 @@ const tools = [
             a simulant made from a different material, or a composite assembled stone. This
             distinction is critical at the identification stage: a stone with an RI of 1.762 and
             SG of 3.99 could be natural ruby, flux-grown synthetic ruby, or a garnet-topped
-            doublet — three very different commercial situations that require different follow-up
+            doublet, which are three very different commercial situations that require different follow-up
             tests. Seeing all three in a single ranked results table prevents the common error
             of stopping investigation once a plausible natural species is found.
           </p>
           <p>
             After the identifier narrows the field, the results table provides direct links to
             the relevant entries in the spectroscope band-matcher and UV fluorescence lookup, so
-            the next logical test is always one click away. This end-to-end workflow — from
+            the next logical test is always one click away. This end-to-end workflow, from
             first observation to a confirmed identification supported by multiple independent
-            properties — is the foundation of professional gemmological practice and the
+            properties, is the foundation of professional gemmological practice and the
             standard taught at the Gemmological Association of Great Britain.
           </p>
         </div>

src/pages/tools/index.astro

@@ -22,7 +22,7 @@ const tools = [
 >
   <ToolsSchema
     slot="head"
-    name="Gemmological Tools — gemmology.dev"
+    name="Gemmological Tools"
     description="Free browser-based tools for coloured-gemstone identification: specific gravity, refractive index, birefringence, spectroscope analysis, treatment detection, and more."
     category="Gemmology"
     url="https://gemmology.dev/tools"
@@ -35,7 +35,7 @@ const tools = [
       <header class="mb-8">
         <h1 class="text-3xl font-bold text-slate-900">Gemmological Tools</h1>
         <p class="text-slate-600 mt-2">
-          Free, browser-based instruments for coloured-gemstone identification, optical testing, and lab analysis — no login required.
+          Free, browser-based instruments for coloured-gemstone identification, optical testing, and lab analysis. No registration needed.
         </p>
       </header>
 
@@ -49,13 +49,13 @@ const tools = [
           <p>
             This toolkit covers every quantitative and qualitative test a practising gemmologist needs
             for systematic identification. All calculations run client-side in the browser using the
-            same mineral database that powers the mineral reference pages — 96 families including
+            same mineral database that powers the mineral reference pages: 96 families including
             natural species, lab-grown synthetics, simulants, and composite stones. No data is
             transmitted to any server; readings stay on your device.
           </p>
           <p>
             The tools are organised across six categories. Measurement &amp; Calculation handles the
-            two primary quantitative tests — specific gravity and refractive index — alongside
+            two primary quantitative tests (specific gravity and refractive index) alongside
             birefringence, critical angle, carat estimation, and the Hanneman/Hodgkinson over-the-limit
             shortcut for stones with RI above 1.81. Optical Properties supports the polariscope and
             dichroscope workflow, with a refractometer simulator, pleochroism reasoner, and optic-sign

src/pages/tools/lab.astro

@@ -32,7 +32,7 @@ const tools = [
       <header class="mb-8">
         <h1 class="text-3xl font-bold text-slate-900">Lab Equipment</h1>
         <p class="text-slate-600 mt-2">
-          Spectroscope reference, inverse band-matching, and UV fluorescence interpretation — the three lab-instrument tools used alongside RI and SG to confirm a gemmological identification.
+          Spectroscope reference, inverse band-matching, and UV fluorescence interpretation: the three lab-instrument tools used alongside RI and SG to confirm a gemmological identification.
         </p>
       </header>
 
@@ -59,8 +59,8 @@ const tools = [
             The band-matcher inverts this workflow. Rather than looking up a known species and
             reading off its bands, you enter the wavelengths you actually observe and the tool
             returns the species whose reference pattern best matches your input. Matching is
-            tolerance-windowed — a band recorded at 692&nbsp;nm will still match the 693&nbsp;nm
-            ruby reference — and selective diagnostic bands are weighted more heavily than broad
+            tolerance-windowed; a band recorded at 692&nbsp;nm will still match the 693&nbsp;nm
+            ruby reference, and selective diagnostic bands are weighted more heavily than broad
             general-absorption regions. This makes the band-matcher especially useful when a
             stone shows one strong diagnostic line alongside several weaker features that might
             be confused for another species. The output lists confidence-ranked candidates, not a
@@ -73,7 +73,7 @@ const tools = [
             points away from moissanite or cubic zirconia. Conversely, a strong SWUV reaction
             with weak or absent LWUV is characteristic of certain synthetic ruby flux products.
             The UV fluorescence lookup parses the freeform fluorescence descriptions stored in
-            the mineral database — for example, "inert to strong blue LWUV, weak yellow SWUV" —
+            the mineral database (for example, "inert to strong blue LWUV, weak yellow SWUV")
             into structured fields: LWUV colour and intensity, SWUV colour and intensity, and a
             phosphorescence flag for materials such as natural hyalite opal that continue to
             glow after the UV source is removed. Intensity is scored on a four-step scale