diff --git a/frontend/src/components/Select.jsx b/frontend/src/components/Select.jsx
index ae71e59..da5fb31 100644
--- a/frontend/src/components/Select.jsx
+++ b/frontend/src/components/Select.jsx
@@ -61,35 +61,49 @@ export default function Select({ value, onChange, options, disabled, className =
           animate={{ opacity: 1, y: 0, scale: 1 }}
           exit={{ opacity: 0, y: flipUp ? 6 : -6, scale: 0.98 }}
           transition={{ duration: 0.15 }}
-          className={`fixed z-[100] rounded-lg border border-white/10 bg-gray-900 text-white shadow-xl overflow-hidden ${
+          className={`fixed z-[100] rounded-lg border overflow-hidden ${
             flipUp ? 'origin-bottom' : 'origin-top'
           }`}
-          style={
-            flipUp
+          style={{
+            background: 'var(--popup-bg)',
+            borderColor: 'var(--popup-border)',
+            boxShadow: 'var(--popup-shadow)',
+            color: 'var(--text-strong)',
+            ...(flipUp
               ? { bottom: pos.bottomOffset + 4, left: pos.left, minWidth: pos.width }
               : { top: pos.top + 4, left: pos.left, minWidth: pos.width }
-          }
+            ),
+          }}
         >
           <div className="max-h-60 overflow-y-auto py-1">
-            {options.map((opt) => (
-              <button
-                key={opt.value}
-                type="button"
-                onClick={() => { onChange(opt.value); setOpen(false) }}
-                className={`w-full text-left px-3 py-2.5 text-sm transition flex items-center gap-2 ${
-                  opt.value === value
-                    ? 'bg-emerald-500/10 text-emerald-300'
-                    : 'hover:bg-white/5'
-                }`}
-              >
-                {opt.value === value && (
-                  <svg className="w-3 h-3 shrink-0" viewBox="0 0 12 12" fill="none">
-                    <path d="M2.5 6L5 8.5L9.5 4" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"/>
-                  </svg>
-                )}
-                <span className={opt.value !== value ? 'pl-5' : ''}>{opt.label}</span>
-              </button>
-            ))}
+            {options.map((opt) => {
+              const isActive = opt.value === value
+              return (
+                <button
+                  key={opt.value}
+                  type="button"
+                  onClick={() => { onChange(opt.value); setOpen(false) }}
+                  className="w-full text-left px-3 py-2.5 text-sm flex items-center gap-2"
+                  style={isActive ? {
+                    background: 'var(--option-selected-bg)',
+                    color: 'var(--option-selected-text)',
+                  } : undefined}
+                  onMouseEnter={(e) => {
+                    if (!isActive) e.currentTarget.style.background = 'var(--row-hover-bg)'
+                  }}
+                  onMouseLeave={(e) => {
+                    if (!isActive) e.currentTarget.style.background = ''
+                  }}
+                >
+                  {isActive && (
+                    <svg className="w-3 h-3 shrink-0" viewBox="0 0 12 12" fill="none">
+                      <path d="M2.5 6L5 8.5L9.5 4" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"/>
+                    </svg>
+                  )}
+                  <span className={!isActive ? 'pl-5' : ''}>{opt.label}</span>
+                </button>
+              )
+            })}
           </div>
         </motion.div>
       )}
@@ -103,14 +117,24 @@ export default function Select({ value, onChange, options, disabled, className =
         type="button"
         disabled={disabled}
         onClick={() => !disabled && setOpen((v) => !v)}
-        className={`w-full flex items-center justify-between gap-2 rounded-lg border bg-gray-950 px-3 py-2 text-sm transition outline-none ${
-          open ? 'border-emerald-500/50' : 'border-white/10 hover:border-white/20'
-        } ${disabled ? 'opacity-50 !cursor-default' : ''}`}
+        className={`w-full flex items-center justify-between gap-2 rounded-lg border px-3 py-2 text-sm outline-none ${
+          disabled ? 'opacity-50 !cursor-default' : ''
+        }`}
+        style={{
+          background: 'var(--input-bg)',
+          borderColor: open ? 'var(--input-border-focus)' : 'var(--input-border)',
+          color: 'var(--text-strong)',
+        }}
       >
-        <span className={selected ? '' : 'text-gray-500'}>
+        <span style={{ color: selected ? 'var(--text-strong)' : 'var(--input-placeholder)' }}>
           {selected ? selected.label : placeholder}
         </span>
-        <svg className={`w-3.5 h-3.5 text-gray-500 transition ${open ? 'rotate-180' : ''}`} viewBox="0 0 12 12" fill="none">
+        <svg
+          className={`w-3.5 h-3.5 transition ${open ? 'rotate-180' : ''}`}
+          style={{ color: 'var(--input-icon)' }}
+          viewBox="0 0 12 12"
+          fill="none"
+        >
           <path d="M3 4.5L6 7.5L9 4.5" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round" />
         </svg>
       </button>
diff --git a/frontend/src/components/Tooltip.jsx b/frontend/src/components/Tooltip.jsx
index 9ddb917..f89b1a0 100644
--- a/frontend/src/components/Tooltip.jsx
+++ b/frontend/src/components/Tooltip.jsx
@@ -98,8 +98,11 @@ export default function Tooltip({ text, children, placement = 'top', delay = 200
             zIndex: 9999,
             opacity: coords ? 1 : 0,
             transition: 'opacity 120ms ease-out',
+            background: 'var(--tooltip-bg)',
+            color: 'var(--tooltip-text)',
+            borderColor: 'var(--tooltip-border)',
           }}
-          className="pointer-events-none px-2 py-1 rounded-md bg-gray-900 border border-white/10 text-xs text-gray-200 shadow-lg whitespace-nowrap"
+          className="pointer-events-none px-2 py-1 rounded-md border text-xs shadow-lg whitespace-nowrap"
         >
           {text}
         </div>,
diff --git a/frontend/src/features/boss-crystal/BossCrystal.jsx b/frontend/src/features/boss-crystal/BossCrystal.jsx
index f0ce9a9..ebe57c9 100644
--- a/frontend/src/features/boss-crystal/BossCrystal.jsx
+++ b/frontend/src/features/boss-crystal/BossCrystal.jsx
@@ -72,12 +72,26 @@ export default function BossCrystal() {
   return (
     <div className="h-full">
       {isLoading ? (
-        <div className="rounded-2xl border border-white/5 bg-gray-900/40 p-16 text-center">
-          <div className="w-6 h-6 border-2 border-emerald-500 border-t-transparent rounded-full animate-spin mx-auto" />
+        <div
+          className="rounded-2xl border p-16 text-center"
+          style={{
+            background: 'var(--panel-bg)',
+            borderColor: 'var(--panel-border)',
+            boxShadow: 'var(--panel-shadow)',
+          }}
+        >
+          <div className="w-6 h-6 border-2 border-t-transparent rounded-full animate-spin mx-auto" style={{ borderColor: 'var(--accent)', borderTopColor: 'transparent' }} />
         </div>
       ) : (
         <div className="grid gap-4 lg:grid-cols-[420px_1fr] h-full min-h-0">
-          <div className="rounded-2xl border border-white/5 bg-gray-900/40 p-4 min-h-0 max-h-full self-start overflow-hidden flex flex-col">
+          <div
+            className="rounded-2xl border p-4 min-h-0 max-h-full self-start overflow-hidden flex flex-col"
+            style={{
+              background: 'var(--panel-bg)',
+              borderColor: 'var(--panel-border)',
+              boxShadow: 'var(--panel-shadow)',
+            }}
+          >
             <CharacterPanel
               characters={characters}
               selectedName={selectedChar}
diff --git a/frontend/src/features/boss-crystal/user/BossSelector.jsx b/frontend/src/features/boss-crystal/user/BossSelector.jsx
index d5d8fec..bf32cf8 100644
--- a/frontend/src/features/boss-crystal/user/BossSelector.jsx
+++ b/frontend/src/features/boss-crystal/user/BossSelector.jsx
@@ -6,7 +6,14 @@ const LABEL_EN = { easy: 'EASY', normal: 'NORMAL', hard: 'HARD', chaos: 'CHAOS',
 export default function BossSelector({ characterName, bosses, selections, onChange, maxReached, selectedCount, maxPerCharacter }) {
   if (!characterName) {
     return (
-      <div className="rounded-2xl border border-dashed border-white/10 bg-white/[0.02] p-16 text-center text-sm text-gray-500">
+      <div
+        className="rounded-2xl border border-dashed p-16 text-center text-sm"
+        style={{
+          borderColor: 'var(--dashed-border)',
+          background: 'var(--skeleton-bg)',
+          color: 'var(--text-dim)',
+        }}
+      >
         좌측에서 캐릭터를 선택해주세요
       </div>
     )
@@ -14,16 +21,37 @@ export default function BossSelector({ characterName, bosses, selections, onChan
 
   if (bosses.length === 0) {
     return (
-      <div className="rounded-2xl border border-dashed border-white/10 bg-white/[0.02] p-16 text-center text-sm text-gray-500">
+      <div
+        className="rounded-2xl border border-dashed p-16 text-center text-sm"
+        style={{
+          borderColor: 'var(--dashed-border)',
+          background: 'var(--skeleton-bg)',
+          color: 'var(--text-dim)',
+        }}
+      >
         등록된 보스가 없습니다
       </div>
     )
   }
 
   return (
-    <div className="rounded-xl border border-white/5 bg-gray-900/40 overflow-hidden flex flex-col h-full">
+    <div
+      className="rounded-xl border overflow-hidden flex flex-col h-full"
+      style={{
+        background: 'var(--panel-bg)',
+        borderColor: 'var(--panel-border)',
+        boxShadow: 'var(--panel-shadow)',
+      }}
+    >
       {/* 헤더 (고정) */}
-      <div className="flex items-center gap-3 px-3 py-3 bg-gray-950/60 border-b border-white/5 text-base font-semibold text-gray-300 shrink-0">
+      <div
+        className="flex items-center gap-3 px-3 py-3 border-b text-base font-medium shrink-0"
+        style={{
+          background: 'var(--surface-2)',
+          borderColor: 'var(--panel-border)',
+          color: 'var(--text-emphasis)',
+        }}
+      >
         <div className="w-52 shrink-0">보스</div>
         <div className="flex-1">난이도</div>
         <div className="w-20 shrink-0 text-center">파티원 수</div>
@@ -31,7 +59,7 @@ export default function BossSelector({ characterName, bosses, selections, onChan
       </div>
       {/* 목록 (스크롤) */}
       <div className="flex-1 overflow-y-auto min-h-0">
-        <div className="divide-y divide-white/5">
+        <div className="divide-y" style={{ '--tw-divide-opacity': 1 }}>
           {bosses.map((boss) => {
             const availableDiffs = DIFFICULTIES.filter((d) =>
               boss.difficulties.some((bd) => bd.difficulty === d.key)
@@ -52,13 +80,20 @@ export default function BossSelector({ characterName, bosses, selections, onChan
             return (
               <div
                 key={boss.id}
-                className={`flex items-center gap-3 px-3 py-3 transition ${
-                  disabled ? 'opacity-30 pointer-events-none' : ''
+                className={`flex items-center gap-3 px-3 py-3 border-t first:border-t-0 ${
+                  disabled ? 'pointer-events-none' : ''
                 }`}
+                style={{
+                  borderColor: 'var(--panel-border)',
+                  opacity: disabled ? 'var(--disabled-opacity)' : 1,
+                }}
               >
                 {/* 보스 이미지 + 이름 */}
                 <div className="flex items-center gap-2.5 w-52 shrink-0">
-                  <div className="shrink-0 w-11 h-11 rounded-lg bg-gray-900 overflow-hidden">
+                  <div
+                    className="shrink-0 w-11 h-11 rounded-lg overflow-hidden"
+                    style={{ background: 'var(--surface-nested)' }}
+                  >
                     <img src={boss.image_url || '/default.png'} alt={boss.name} className="w-full h-full object-cover" />
                   </div>
                   <span className="text-base font-medium leading-tight whitespace-nowrap overflow-hidden text-ellipsis">{boss.name}</span>
@@ -72,7 +107,7 @@ export default function BossSelector({ characterName, bosses, selections, onChan
                       background: d.colors.bg,
                       borderColor: d.colors.border,
                       color: d.colors.text,
-                      filter: active ? 'none' : 'brightness(0.4)',
+                      filter: active ? 'none' : 'var(--inactive-filter)',
                     }
                     return (
                       <button
@@ -103,12 +138,20 @@ export default function BossSelector({ characterName, bosses, selections, onChan
                       align="right"
                     />
                   ) : (
-                    <div className="text-xs text-gray-700 text-center">-</div>
+                    <div
+                      className="text-xs text-center"
+                      style={{ color: 'var(--text-dim)' }}
+                    >
+                      -
+                    </div>
                   )}
                 </div>
 
                 {/* 수익 */}
-                <div className={`w-32 shrink-0 text-right text-sm font-medium tabular-nums ${sel ? 'text-emerald-300' : 'text-gray-700'}`}>
+                <div
+                  className="w-32 shrink-0 text-right text-sm font-medium tabular-nums"
+                  style={{ color: sel ? 'var(--accent-bright)' : 'var(--text-dim)' }}
+                >
                   {sel ? formatMeso(revenue) : '-'}
                 </div>
               </div>
diff --git a/frontend/src/features/boss-crystal/user/CharacterPanel.jsx b/frontend/src/features/boss-crystal/user/CharacterPanel.jsx
index 512295b..77d47c1 100644
--- a/frontend/src/features/boss-crystal/user/CharacterPanel.jsx
+++ b/frontend/src/features/boss-crystal/user/CharacterPanel.jsx
@@ -48,14 +48,16 @@ function CharacterContent({ char, selections, bosses }) {
               draggable={false}
             />
           ) : (
-            <span className="text-gray-700 text-4xl">?</span>
+            <span className="text-4xl" style={{ color: 'var(--text-dim)' }}>?</span>
           )}
         </div>
 
         <div className="flex-1 min-w-0 space-y-2">
           <div className="flex items-baseline gap-2 min-w-0">
             <span className="text-base font-semibold truncate">{char.character_name}</span>
-            <span className="text-xs text-gray-500 truncate">Lv.{char.character_level} · {char.job_name}</span>
+            <span className="text-xs truncate" style={{ color: 'var(--text-dim)' }}>
+              Lv.{char.character_level} · {char.job_name}
+            </span>
           </div>
 
           {visibleBosses.length > 0 ? (
@@ -68,7 +70,13 @@ function CharacterContent({ char, selections, bosses }) {
                     text={`${diff?.label || ''} ${item.boss.name} · ${formatMeso(item.revenue)}`}
                   >
                     <div className="space-y-0.5">
-                      <div className="aspect-square rounded bg-gray-900 overflow-hidden border border-white/5">
+                      <div
+                        className="aspect-square rounded overflow-hidden border"
+                        style={{
+                          background: 'var(--surface-nested)',
+                          borderColor: 'var(--panel-border)',
+                        }}
+                      >
                         <img src={item.boss.image_url || '/default.png'} alt="" draggable={false} className="w-full h-full object-cover select-none" />
                       </div>
                       <div className="flex justify-center">
@@ -85,17 +93,38 @@ function CharacterContent({ char, selections, bosses }) {
               })}
             </div>
           ) : (
-            <div className="text-xs text-gray-600 italic h-[58px] flex items-center">보스 미선택</div>
+            <div
+              className="text-xs italic h-[58px] flex items-center"
+              style={{ color: 'var(--text-dim)' }}
+            >
+              보스 미선택
+            </div>
           )}
         </div>
       </div>
 
-      <div className="flex items-center justify-between border-t border-white/5 pt-2">
+      <div
+        className="flex items-center justify-between border-t pt-2"
+        style={{ borderColor: 'var(--panel-border)' }}
+      >
         <div className="flex items-baseline gap-1 tabular-nums">
-          <span className={`text-base font-bold ${count > 0 ? 'text-amber-300' : 'text-gray-600'}`}>{count}</span>
-          <span className="text-base font-bold text-amber-300/40">/ {MAX_PER_CHARACTER}</span>
+          <span
+            className="text-base font-bold"
+            style={{ color: count > 0 ? 'var(--warning-text-bright)' : 'var(--text-dim)' }}
+          >
+            {count}
+          </span>
+          <span
+            className="text-base font-bold"
+            style={{ color: count > 0 ? 'var(--warning-text-dim)' : 'var(--text-dim)' }}
+          >
+            / {MAX_PER_CHARACTER}
+          </span>
         </div>
-        <div className={`text-sm font-semibold tabular-nums whitespace-nowrap ${count > 0 ? 'text-emerald-300' : 'text-gray-700'}`}>
+        <div
+          className="text-sm font-semibold tabular-nums whitespace-nowrap"
+          style={{ color: count > 0 ? 'var(--accent-bright)' : 'var(--text-dim)' }}
+        >
           {count > 0 ? formatMeso(totalRevenue) : '-'}
         </div>
       </div>
@@ -122,17 +151,17 @@ function CharacterItem({ char, isSelected, selections, bosses, onSelect, onRemov
         if (e.target.closest('button')) return
         onSelect(char.character_name)
       }}
-      className={`group relative rounded-xl border cursor-pointer select-none ${
-        isSelected
-          ? 'border-emerald-500/40 bg-emerald-500/[0.08]'
-          : 'border-white/5 hover:border-white/15 bg-gray-950/40 hover:bg-gray-950/60'
-      }`}
+      className="group relative rounded-xl border cursor-pointer select-none"
+      style={{
+        borderColor: isSelected ? 'var(--selected-border)' : 'var(--panel-border)',
+        background: isSelected ? 'var(--selected-bg)' : 'var(--surface-3)',
+      }}
     >
       {/* 드래그 핸들 */}
       <div
         onPointerDown={(e) => { e.preventDefault(); dragControls.start(e) }}
-        className="absolute left-0 top-0 bottom-0 w-8 flex items-center justify-center text-gray-600 hover:text-gray-400 cursor-grab active:cursor-grabbing"
-        style={{ touchAction: 'none' }}
+        className="absolute left-0 top-0 bottom-0 w-8 flex items-center justify-center cursor-grab active:cursor-grabbing"
+        style={{ touchAction: 'none', color: 'var(--text-dim)' }}
       >
         <svg width="12" height="16" viewBox="0 0 12 16" fill="currentColor">
           <circle cx="3" cy="3" r="1.2" />
@@ -147,7 +176,8 @@ function CharacterItem({ char, isSelected, selections, bosses, onSelect, onRemov
       <button
         type="button"
         onClick={(e) => { e.stopPropagation(); onRemove(char) }}
-        className="absolute top-2 right-2 z-10 w-6 h-6 rounded text-gray-600 hover:text-red-400 hover:bg-red-500/10 transition opacity-0 group-hover:opacity-100 flex items-center justify-center text-base"
+        className="absolute top-2 right-2 z-10 w-6 h-6 rounded opacity-0 group-hover:opacity-100 flex items-center justify-center text-base hover:bg-[var(--danger-bg-hover)] hover:text-[var(--danger-text)]"
+        style={{ color: 'var(--text-dim)' }}
         aria-label="삭제"
       >
         ×
@@ -222,13 +252,20 @@ export default function CharacterPanel({
   return (
     <div className="flex flex-col gap-4 min-h-0 flex-1">
       {/* 총 수익 카드 (고정) */}
-      <div className="rounded-2xl border border-emerald-500/30 bg-gradient-to-br from-emerald-500/15 to-emerald-500/5 p-4 space-y-3 shrink-0">
+      <div
+        className="rounded-2xl border p-4 space-y-3 shrink-0"
+        style={{
+          borderColor: 'var(--selected-border)',
+          background: 'var(--selected-bg)',
+        }}
+      >
         <div>
-          <div className="text-xs text-emerald-200/80">총 주간 수익</div>
+          <div className="text-xs" style={{ color: 'var(--accent-bright)' }}>총 주간 수익</div>
           <div ref={totalContainerRef} className="mt-1 overflow-hidden">
             <div
               ref={totalTextRef}
-              className="font-bold text-emerald-300 leading-tight whitespace-nowrap inline-block"
+              className="font-bold leading-tight whitespace-nowrap inline-block"
+              style={{ color: 'var(--accent-bright)' }}
             >
               {totalText}
             </div>
@@ -237,25 +274,42 @@ export default function CharacterPanel({
 
         <div className="grid grid-cols-[1fr_auto] gap-x-3 items-center">
           <div className="space-y-2">
-            <div className="text-sm text-gray-400">총 결정 개수</div>
-            <div className="h-2 rounded-full bg-gray-900 overflow-hidden">
+            <div className="text-sm" style={{ color: 'var(--text-muted)' }}>총 결정 개수</div>
+            <div
+              className="h-2 rounded-full overflow-hidden"
+              style={{ background: 'var(--progress-track)' }}
+            >
               <div
-                className={`h-full transition-all ${totalCount > MAX_PER_ACCOUNT ? 'bg-amber-500' : 'bg-emerald-500'}`}
-                style={{ width: `${usagePct}%` }}
+                className="h-full transition-all"
+                style={{
+                  width: `${usagePct}%`,
+                  background: totalCount > MAX_PER_ACCOUNT ? 'var(--progress-amber)' : 'var(--progress-emerald)',
+                }}
               />
             </div>
           </div>
           <div className="flex items-baseline gap-1 tabular-nums">
-            <span className={`text-2xl font-bold leading-none ${totalCount > MAX_PER_ACCOUNT ? 'text-red-400' : 'text-amber-300'}`}>
+            <span
+              className="text-2xl font-bold leading-none"
+              style={{ color: totalCount > MAX_PER_ACCOUNT ? 'var(--danger-text)' : 'var(--warning-text-bright)' }}
+            >
               {accountUsage}
             </span>
-            <span className={`text-2xl font-bold leading-none ${totalCount > MAX_PER_ACCOUNT ? 'text-red-400/40' : 'text-amber-300/40'}`}>
+            <span
+              className="text-2xl font-bold leading-none"
+              style={{
+                color: totalCount > MAX_PER_ACCOUNT ? 'var(--danger-text)' : 'var(--warning-text-dim)',
+                opacity: totalCount > MAX_PER_ACCOUNT ? 0.4 : 1,
+              }}
+            >
               / {MAX_PER_ACCOUNT}
             </span>
           </div>
         </div>
         {totalCount > MAX_PER_ACCOUNT && (
-          <p className="text-[10px] text-amber-400">⚠ 한도 {totalCount - MAX_PER_ACCOUNT}개 초과</p>
+          <p className="text-[10px]" style={{ color: 'var(--warning-text)' }}>
+            ⚠ 한도 {totalCount - MAX_PER_ACCOUNT}개 초과
+          </p>
         )}
       </div>
 
@@ -263,7 +317,10 @@ export default function CharacterPanel({
       <div className="shrink-0">
         <form onSubmit={handleSubmit} className="flex gap-2">
           <div className="relative flex-1 min-w-0">
-            <span className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-500 pointer-events-none">
+            <span
+              className="absolute left-3 top-1/2 -translate-y-1/2 pointer-events-none"
+              style={{ color: 'var(--input-icon)' }}
+            >
               <svg width="16" height="16" viewBox="0 0 16 16" fill="none">
                 <circle cx="6.5" cy="6.5" r="4.5" stroke="currentColor" strokeWidth="1.5" />
                 <path d="M10 10L14 14" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" />
@@ -274,18 +331,30 @@ export default function CharacterPanel({
               value={name}
               onChange={(e) => { setName(e.target.value); if (error) setError('') }}
               placeholder="캐릭터 닉네임 검색"
-              className="w-full rounded-lg border-2 border-white/10 bg-gray-950 pl-10 pr-3 py-2.5 text-sm outline-none focus:border-emerald-500/60 hover:border-white/20 transition"
+              className="w-full rounded-lg border-2 pl-10 pr-3 py-2.5 text-sm outline-none transition focus:border-[var(--input-border-focus)] hover:border-[var(--input-border-hover)]"
+              style={{
+                background: 'var(--input-bg)',
+                borderColor: 'var(--input-border)',
+                color: 'var(--text-strong)',
+              }}
             />
           </div>
           <button
             type="submit"
             disabled={searchMutation.isPending}
-            className="rounded-lg bg-emerald-600 hover:bg-emerald-500 disabled:opacity-50 px-5 py-2.5 text-sm font-medium transition shrink-0 shadow-lg shadow-emerald-500/20"
+            className="rounded-lg disabled:opacity-50 px-5 py-2.5 text-sm font-medium shrink-0 hover:bg-[var(--btn-primary-bg-hover)]"
+            style={{
+              background: 'var(--btn-primary-bg)',
+              color: 'var(--btn-primary-text)',
+              boxShadow: 'var(--btn-primary-shadow)',
+            }}
           >
             {searchMutation.isPending ? '...' : '추가'}
           </button>
         </form>
-        {error && <p className="text-xs text-red-400 mt-1.5">{error}</p>}
+        {error && (
+          <p className="text-xs mt-1.5" style={{ color: 'var(--danger-text)' }}>{error}</p>
+        )}
       </div>
 
       {/* 캐릭터 목록 (스크롤) */}
diff --git a/frontend/src/index.css b/frontend/src/index.css
index 7c582e5..a25a6ce 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -76,6 +76,53 @@
   --maintenance-text: #fbbf24;
 
   --dashed-border: rgba(255, 255, 255, 0.1);
+
+  --surface-2: rgba(2, 6, 23, 0.6);
+  --surface-3: rgba(17, 24, 39, 0.4);
+  --surface-nested: #0f172a;
+
+  --input-bg: #020617;
+  --input-border: rgba(255, 255, 255, 0.1);
+  --input-border-hover: rgba(255, 255, 255, 0.2);
+  --input-border-focus: rgba(16, 185, 129, 0.5);
+  --input-placeholder: #6b7280;
+  --input-icon: #6b7280;
+
+  --selected-bg: rgba(16, 185, 129, 0.08);
+  --selected-border: rgba(16, 185, 129, 0.4);
+  --option-selected-bg: rgba(16, 185, 129, 0.12);
+  --option-selected-text: #6ee7b7;
+
+  --btn-primary-bg: #059669;
+  --btn-primary-bg-hover: #10b981;
+  --btn-primary-text: #ffffff;
+  --btn-primary-shadow: 0 4px 14px rgba(16, 185, 129, 0.2);
+
+  --danger-text: #f87171;
+  --danger-text-strong: #dc2626;
+  --danger-bg-hover: rgba(239, 68, 68, 0.1);
+  --warning-text: #fbbf24;
+  --warning-text-bright: #fcd34d;
+  --warning-text-dim: rgba(252, 211, 77, 0.4);
+
+  --progress-track: #0f172a;
+  --progress-emerald: #10b981;
+  --progress-amber: #f59e0b;
+
+  --accent-bright: #6ee7b7;
+  --accent-muted: rgba(16, 185, 129, 0.1);
+  --accent-text-on-emerald: #ecfdf5;
+
+  --tooltip-bg: #111827;
+  --tooltip-border: rgba(255, 255, 255, 0.1);
+  --tooltip-text: #e5e7eb;
+
+  --popup-bg: #111827;
+  --popup-border: rgba(255, 255, 255, 0.1);
+  --popup-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
+
+  --disabled-opacity: 0.3;
+  --inactive-filter: brightness(0.4);
 }
 
 /* 테마 토큰 - light */
@@ -148,6 +195,53 @@
   --maintenance-text: #b45309;
 
   --dashed-border: rgba(0, 0, 0, 0.12);
+
+  --surface-2: #f8fafc;
+  --surface-3: #f9fafb;
+  --surface-nested: #f3f4f6;
+
+  --input-bg: #ffffff;
+  --input-border: rgba(0, 0, 0, 0.12);
+  --input-border-hover: rgba(0, 0, 0, 0.22);
+  --input-border-focus: rgba(5, 150, 105, 0.55);
+  --input-placeholder: #9ca3af;
+  --input-icon: #94a3b8;
+
+  --selected-bg: rgba(16, 185, 129, 0.08);
+  --selected-border: rgba(5, 150, 105, 0.5);
+  --option-selected-bg: rgba(16, 185, 129, 0.12);
+  --option-selected-text: #047857;
+
+  --btn-primary-bg: #059669;
+  --btn-primary-bg-hover: #047857;
+  --btn-primary-text: #ffffff;
+  --btn-primary-shadow: 0 4px 14px rgba(16, 185, 129, 0.25);
+
+  --danger-text: #dc2626;
+  --danger-text-strong: #b91c1c;
+  --danger-bg-hover: rgba(220, 38, 38, 0.08);
+  --warning-text: #c2410c;
+  --warning-text-bright: #ea580c;
+  --warning-text-dim: rgba(234, 88, 12, 0.4);
+
+  --progress-track: #e5e7eb;
+  --progress-emerald: #10b981;
+  --progress-amber: #f59e0b;
+
+  --accent-bright: #047857;
+  --accent-muted: rgba(16, 185, 129, 0.1);
+  --accent-text-on-emerald: #ecfdf5;
+
+  --tooltip-bg: #111827;
+  --tooltip-border: rgba(255, 255, 255, 0.08);
+  --tooltip-text: #f3f4f6;
+
+  --popup-bg: #ffffff;
+  --popup-border: rgba(0, 0, 0, 0.1);
+  --popup-shadow: 0 10px 30px rgba(15, 23, 42, 0.15);
+
+  --disabled-opacity: 0.5;
+  --inactive-filter: opacity(0.25);
 }
 
 html, body, #root {