style(control-center): Quick Controls 재질과 모션 규칙 통일

src/widgets/control-center-sheet/ui/ControlCenterSheetWidget.tsx

@@ -10,6 +10,7 @@ import {
 import { getRoomCardBackgroundStyle, type RoomTheme } from '@/entities/room';
 import type { SoundPreset, TimerPreset } from '@/entities/session';
 import { cn } from '@/shared/lib/cn';
+import { useReducedMotion } from '@/shared/lib/useReducedMotion';
 
 interface ControlCenterSheetWidgetProps {
   plan: PlanTier;
@@ -87,7 +88,14 @@ export const ControlCenterSheetWidget = ({
   onApplyPack,
   onLockedClick,
 }: ControlCenterSheetWidgetProps) => {
+  const reducedMotion = useReducedMotion();
   const isPro = plan === 'pro';
+  const interactiveMotionClass = reducedMotion
+    ? 'transition-none'
+    : 'transition-[transform,background-color,border-color,box-shadow,color,opacity] duration-[220ms] ease-out';
+  const colorMotionClass = reducedMotion
+    ? 'transition-none'
+    : 'transition-colors duration-[220ms] ease-out';
 
   const selectedRoom = useMemo(() => {
     return rooms.find((room) => room.id === selectedRoomId) ?? rooms[0];
@@ -99,9 +107,12 @@ export const ControlCenterSheetWidget = ({
 
   return (
     <div className="space-y-4">
-      <section className="space-y-2 rounded-2xl border border-white/14 bg-white/[0.035] p-3">
+      <section className="space-y-2 rounded-2xl border border-white/12 bg-black/22 p-3 backdrop-blur-md">
         <SectionTitle title="Scene" description={selectedRoom?.name ?? '공간'} />
-        <div className="-mx-1 flex gap-2 overflow-x-auto px-1 pb-1">
+        <div
+          className={cn('-mx-1 flex gap-2 overflow-x-auto px-1 pb-1 snap-x snap-mandatory', reducedMotion ? '' : 'scroll-smooth')}
+          style={{ scrollBehavior: reducedMotion ? 'auto' : 'smooth' }}
+        >
           {rooms.slice(0, 6).map((room) => {
             const selected = room.id === selectedRoomId;
             const locked = !isPro && PRO_LOCKED_ROOM_IDS.includes(room.id);
@@ -119,7 +130,9 @@ export const ControlCenterSheetWidget = ({
                   onSelectRoom(room.id);
                 }}
                 className={cn(
-                  'relative h-24 w-[130px] shrink-0 overflow-hidden rounded-xl border text-left transition-transform hover:-translate-y-0.5',
+                  'relative h-24 w-[130px] shrink-0 snap-start overflow-hidden rounded-xl border text-left',
+                  interactiveMotionClass,
+                  reducedMotion ? '' : 'hover:-translate-y-0.5',
                   selected ? 'border-sky-200/44 shadow-[0_8px_16px_rgba(56,189,248,0.18)]' : 'border-white/16',
                 )}
               >
@@ -136,7 +149,7 @@ export const ControlCenterSheetWidget = ({
         </div>
       </section>
 
-      <section className="space-y-2 rounded-2xl border border-white/14 bg-white/[0.035] p-3">
+      <section className="space-y-2 rounded-2xl border border-white/12 bg-black/22 p-3 backdrop-blur-md">
         <SectionTitle title="Time" description={selectedTimerLabel} />
         <div className="grid grid-cols-3 gap-1.5">
           {timerPresets.slice(0, 3).map((preset) => {
@@ -156,7 +169,8 @@ export const ControlCenterSheetWidget = ({
                   onSelectTimer(preset.label);
                 }}
                 className={cn(
-                  'relative rounded-xl border px-2 py-2 text-xs transition-colors',
+                  'relative rounded-xl border px-2 py-2 text-xs',
+                  colorMotionClass,
                   selected
                     ? 'border-sky-200/42 bg-sky-200/16 text-white'
                     : 'border-white/18 bg-white/[0.04] text-white/74 hover:bg-white/[0.1]',
@@ -170,7 +184,7 @@ export const ControlCenterSheetWidget = ({
         </div>
       </section>
 
-      <section className="space-y-2 rounded-2xl border border-white/14 bg-white/[0.035] p-3">
+      <section className="space-y-2 rounded-2xl border border-white/12 bg-black/22 p-3 backdrop-blur-md">
         <SectionTitle title="Sound" description={selectedSound?.label ?? '기본'} />
         <div className="flex flex-wrap gap-1.5">
           {soundPresets.slice(0, 6).map((preset) => {
@@ -190,7 +204,8 @@ export const ControlCenterSheetWidget = ({
                   onSelectSound(preset.id);
                 }}
                 className={cn(
-                  'rounded-full border px-3 py-1.5 text-xs transition-colors',
+                  'rounded-full border px-3 py-1.5 text-xs',
+                  colorMotionClass,
                   selected
                     ? 'border-sky-200/42 bg-sky-200/16 text-white'
                     : 'border-white/18 bg-white/[0.04] text-white/74 hover:bg-white/[0.1]',
@@ -204,7 +219,7 @@ export const ControlCenterSheetWidget = ({
         </div>
       </section>
 
-      <section className="space-y-2 rounded-2xl border border-white/14 bg-white/[0.035] p-3">
+      <section className="space-y-2 rounded-2xl border border-white/12 bg-black/22 p-3 backdrop-blur-md">
         <SectionTitle title="Preset Packs" description="원탭 조합" />
         <div className="grid gap-1.5">
           {QUICK_PACKS.map((pack) => {
@@ -222,7 +237,10 @@ export const ControlCenterSheetWidget = ({
 
                   onApplyPack(pack.id);
                 }}
-                className="relative rounded-xl border border-white/16 bg-white/[0.04] px-3 py-2 text-left transition-colors hover:bg-white/[0.1]"
+                className={cn(
+                  'relative rounded-xl border border-white/16 bg-white/[0.04] px-3 py-2 text-left hover:bg-white/[0.1]',
+                  colorMotionClass,
+                )}
               >
                 {locked ? <LockBadge /> : null}
                 <p className="text-sm font-medium text-white/90">{pack.name}</p>

src/widgets/space-sheet-shell/ui/SpaceSideSheet.tsx

@@ -2,8 +2,7 @@
 
 import { useEffect, useRef, useState, type ReactNode } from 'react';
 import { cn } from '@/shared/lib/cn';
-
+import { useReducedMotion } from '@/shared/lib/useReducedMotion';
-const SHEET_TRANSITION_MS = 300;
 
 interface SpaceSideSheetProps {
   open: boolean;
@@ -28,6 +27,8 @@ export const SpaceSideSheet = ({
   dismissible = true,
   headerAction,
 }: SpaceSideSheetProps) => {
+  const reducedMotion = useReducedMotion();
+  const transitionMs = reducedMotion ? 0 : 260;
   const closeTimerRef = useRef<number | null>(null);
   const [shouldRender, setShouldRender] = useState(open);
   const [visible, setVisible] = useState(open);
@@ -53,7 +54,7 @@ export const SpaceSideSheet = ({
     closeTimerRef.current = window.setTimeout(() => {
       setShouldRender(false);
       closeTimerRef.current = null;
-    }, SHEET_TRANSITION_MS);
+    }, transitionMs);
 
     return () => {
       if (closeTimerRef.current) {
@@ -61,7 +62,7 @@ export const SpaceSideSheet = ({
         closeTimerRef.current = null;
       }
     };
-  }, [open]);
+  }, [open, transitionMs]);
 
   useEffect(() => {
     if (!open) {
@@ -93,7 +94,8 @@ export const SpaceSideSheet = ({
           aria-label="시트 닫기"
           onClick={onClose}
           className={cn(
-            'fixed inset-0 z-40 bg-slate-950/14 backdrop-blur-[1px] transition-opacity duration-300',
+            'fixed inset-0 z-40 bg-slate-950/14 backdrop-blur-[1px] transition-opacity',
+            reducedMotion ? 'duration-0' : 'duration-[240ms]',
             visible ? 'opacity-100' : 'pointer-events-none opacity-0',
           )}
         />
@@ -101,7 +103,8 @@ export const SpaceSideSheet = ({
         <div
           aria-hidden
           className={cn(
-            'fixed inset-0 z-40 bg-slate-950/8 backdrop-blur-[1px] transition-opacity duration-300',
+            'fixed inset-0 z-40 bg-slate-950/8 backdrop-blur-[1px] transition-opacity',
+            reducedMotion ? 'duration-0' : 'duration-[240ms]',
             visible ? 'opacity-100' : 'opacity-0',
           )}
         />
@@ -109,15 +112,17 @@ export const SpaceSideSheet = ({
 
       <aside
         className={cn(
-          'fixed inset-y-0 right-0 z-50 p-2 transition-opacity duration-300 sm:p-3',
+          'fixed inset-y-0 right-0 z-50 p-2 transition-opacity sm:p-3',
+          reducedMotion ? 'duration-0' : 'duration-[260ms]',
           visible ? 'opacity-100' : 'pointer-events-none opacity-0',
           widthClassName ?? 'w-[min(360px,92vw)]',
         )}
       >
         <div
           className={cn(
-            'flex h-full flex-col overflow-hidden rounded-3xl border border-white/14 bg-[linear-gradient(180deg,rgba(15,23,42,0.74)_0%,rgba(10,15,30,0.62)_100%)] text-white shadow-[0_18px_52px_rgba(2,6,23,0.34)] backdrop-blur-2xl transition-transform duration-300',
+            'flex h-full flex-col overflow-hidden rounded-3xl border border-white/12 bg-black/24 text-white shadow-[0_18px_52px_rgba(2,6,23,0.34)] backdrop-blur-xl transition-transform',
-            visible ? 'translate-x-0' : 'translate-x-8',
+            reducedMotion ? 'duration-0' : 'duration-[260ms]',
+            visible || reducedMotion ? 'translate-x-0' : 'translate-x-8',
           )}
         >
           <header className="flex items-start justify-between gap-3 border-b border-white/7 px-4 py-3 sm:px-5">