Add imprint page with privacy/attribution info and footer link

Adds /imprint/ with operator contact, self-hosted Umami analytics
disclosure, content attribution, and disclaimer sections. Links
Imprint in the footer bottom bar next to the pivoine.art credit.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

hugo_stats.json

@@ -7,7 +7,10 @@
       "body",
       "button",
       "circle",
+      "dd",
       "div",
+      "dl",
+      "dt",
       "ellipse",
       "em",
       "footer",
@@ -120,6 +123,7 @@
       "gap-3",
       "gap-3.5",
       "gap-4",
+      "gap-5",
       "gap-6",
       "gap-7",
       "gap-[10px]",
@@ -133,6 +137,8 @@
       "gap-[6px]",
       "gap-[7px]",
       "gap-[9px]",
+      "gap-x-8",
+      "gap-y-[14px]",
       "glass",
       "grid",
       "grid-cols-1",
@@ -140,6 +146,8 @@
       "grid-cols-[0.92fr_1.08fr]",
       "grid-cols-[1.05fr_0.95fr]",
       "grid-cols-[1.6fr_1fr_1fr_1fr]",
+      "grid-cols-[120px_1fr]",
+      "grid-cols-[120px_auto]",
       "grid-cols-[1fr_1.15fr]",
       "group",
       "group-hover:text-gold",
@@ -156,10 +164,12 @@
       "hover:border-warm/18",
       "hover:pl-[5px]",
       "hover:shadow-[0_24px_50px_-24px_rgba(0,0,0,.8)]",
+      "hover:text-gold",
       "hover:text-gold-2",
       "hover:text-ink",
       "hover:text-ink-soft",
       "inline-flex",
+      "inline-grid",
       "italic",
       "items-baseline",
       "items-center",
@@ -171,6 +181,7 @@
       "leading-[1.05]",
       "leading-[1.15]",
       "leading-[1.55]",
+      "leading-[1.75]",
       "leading-[38px]",
       "leading-none",
       "leading-relaxed",
@@ -207,10 +218,12 @@
       "max-w-[1280px]",
       "max-w-[480px]",
       "max-w-[560px]",
+      "max-w-[820px]",
       "max-w-md",
       "mb-0",
       "mb-1.5",
       "mb-12",
+      "mb-14",
       "mb-2",
       "mb-3",
       "mb-4",
@@ -260,6 +273,7 @@
       "p-4",
       "p-[22px]",
       "pb-10",
+      "pb-24",
       "pb-3",
       "pb-4",
       "pb-5",
@@ -319,6 +333,7 @@
       "shadow-[0_50px_90px_-45px_#000]",
       "shrink-0",
       "sm:grid-cols-2",
+      "space-y-4",
       "sticky",
       "text-[#1a1206]",
       "text-[10px]",
@@ -330,6 +345,7 @@
       "text-[13px]",
       "text-[14.5px]",
       "text-[14px]",
+      "text-[15px]",
       "text-[16px]",
       "text-[17px]",
       "text-[18px]",
@@ -347,6 +363,7 @@
       "text-[clamp(34px,5vw,56px)]",
       "text-[clamp(36px,6vw,72px)]",
       "text-[clamp(44px,6.4vw,80px)]",
+      "text-[clamp(44px,6vw,72px)]",
       "text-[clamp(46px,7.2vw,92px)]",
       "text-[clamp(48px,6vw,84px)]",
       "text-center",
@@ -368,6 +385,7 @@
       "top-[11px]",
       "tracking-[-0.015em]",
       "tracking-[-0.01em]",
+      "tracking-[-0.02em]",
       "tracking-[0.02em]",
       "tracking-[0.04em]",
       "tracking-[0.06em]",