refactor: centralize gold tokens, extract sub-components, clean up unused code

- Replace hardcoded hex colors with gold/gold-light/gold-dark Tailwind tokens
- Extract Schedule into DayCard, ScheduleFilters, MobileSchedule sub-components
- Extract Team into TeamCarousel, TeamMemberInfo sub-components
- Add UI_CONFIG for centralized magic numbers (timings, thresholds)
- Add reusable IconBadge component, simplify Contact section
- Convert Pricing clickable divs to semantic buttons for a11y
- Remove unused SocialLinks, btn-outline, btn-ghost, nav-link CSS classes
- Fix React setState-during-render error in TeamCarousel (deferred update pattern)

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

src/components/sections/schedule/DayCard.tsx

@@ -0,0 +1,60 @@
+import { Clock, User } from "lucide-react";
+import type { ScheduleDay } from "@/types/content";
+import { TYPE_DOT } from "./constants";
+
+export function DayCard({ day }: { day: ScheduleDay }) {
+  return (
+    <div className="rounded-2xl border border-neutral-200 bg-white dark:border-white/[0.06] dark:bg-[#0a0a0a] overflow-hidden">
+      {/* Day header */}
+      <div className="border-b border-neutral-100 bg-neutral-50 px-5 py-4 dark:border-white/[0.04] dark:bg-white/[0.02]">
+        <div className="flex items-center gap-3">
+          <span className="flex h-10 w-10 shrink-0 items-center justify-center rounded-xl bg-gold/10 text-sm font-bold text-gold-dark dark:bg-gold/10 dark:text-gold-light">
+            {day.dayShort}
+          </span>
+          <span className="text-base font-semibold text-neutral-900 dark:text-white/90">
+            {day.day}
+          </span>
+        </div>
+      </div>
+
+      {/* Classes */}
+      <div className="divide-y divide-neutral-100 dark:divide-white/[0.04]">
+        {day.classes.map((cls, i) => (
+          <div key={i} className={`px-5 py-3.5 ${cls.hasSlots ? "bg-emerald-500/5" : cls.recruiting ? "bg-sky-500/5" : ""}`}>
+            <div className="flex items-center justify-between gap-2">
+              <div className="flex items-center gap-2 text-sm text-neutral-500 dark:text-white/40">
+                <Clock size={13} />
+                <span className="font-semibold">{cls.time}</span>
+              </div>
+              {cls.hasSlots && (
+                <span className="shrink-0 rounded-full bg-emerald-500/15 border border-emerald-500/25 px-2 py-0.5 text-[10px] font-semibold text-emerald-600 dark:text-emerald-400">
+                  есть места
+                </span>
+              )}
+              {cls.recruiting && (
+                <span className="shrink-0 rounded-full bg-sky-500/15 border border-sky-500/25 px-2 py-0.5 text-[10px] font-semibold text-sky-600 dark:text-sky-400">
+                  набор
+                </span>
+              )}
+            </div>
+            <div className="mt-1.5 flex items-center gap-2 text-sm font-medium text-neutral-800 dark:text-white/80">
+              <User size={13} className="shrink-0 text-neutral-400 dark:text-white/30" />
+              {cls.trainer}
+            </div>
+            <div className="mt-2 flex items-center gap-2 flex-wrap">
+              <div className="flex items-center gap-2">
+                <span className={`h-2 w-2 shrink-0 rounded-full ${TYPE_DOT[cls.type] ?? "bg-white/30"}`} />
+                <span className="text-xs text-neutral-500 dark:text-white/40">{cls.type}</span>
+              </div>
+              {cls.level && (
+                <span className="rounded-full bg-rose-500/15 border border-rose-500/25 px-2 py-0.5 text-[10px] font-semibold text-rose-600 dark:text-rose-400">
+                  {cls.level}
+                </span>
+              )}
+            </div>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}