/*
 * ============================================================================
 * Playground 디자인 시스템 - 컴포넌트 라이브러리
 * ============================================================================
 *
 * 이 파일은 재사용 가능한 UI 컴포넌트 스타일을 정의합니다.
 * design-system.css의 CSS 변수에 의존하므로 반드시 함께 로드하세요.
 *
 * 목차:
 *   1. 리셋 & 기본 스타일
 *   2. 레이아웃 (컨테이너, 그리드)
 *   3. 타이포그래피
 *   4. 버튼
 *   5. 카드
 *   6. 폼
 *   7. 메시지 / 알림
 *   8. 네비게이션 바
 *   9. 빈 상태 (Empty State)
 *  10. 로딩 인디케이터
 *  11. HTMX 관련
 *  12. 유틸리티 클래스
 *  13. 애니메이션
 *  14. 반응형
 *
 * ============================================================================
 */


/* ============================================================================
 * 1. 리셋 & 기본 스타일
 * ============================================================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 키보드 내비게이션 포커스 표시 */
:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring-shadow);
    border-radius: var(--radius-sm);
}

/* 마우스 클릭 시 포커스 링 숨김 */
:focus:not(:focus-visible) {
    outline: none;
}

/* 모션 선호도 존중 (A2) */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Skip-to-content 링크 (A1) */
.skip-link {
    position: absolute;
    top: -100px;
    left: var(--spacing-4);
    z-index: var(--z-tooltip);
    padding: var(--spacing-3) var(--spacing-5);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: top var(--transition-base);
}

.skip-link:focus {
    top: var(--spacing-4);
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    letter-spacing: var(--letter-spacing-korean);
    font-feature-settings: "palt";  /* 한글 프로포셔널 간격 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    padding-top: 70px; /* 네비게이션 바 높이 + 여유 */
}


/* ============================================================================
 * 2. 레이아웃 (컨테이너, 그리드)
 * ============================================================================ */

/* 기본 컨테이너 */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--spacing-6);
}

.container-sm {
    max-width: var(--container-sm);
    margin: 0 auto;
    padding: var(--spacing-6);
}

.container-md {
    max-width: var(--container-md);
    margin: 0 auto;
    padding: var(--spacing-6);
}

.container-lg {
    max-width: var(--container-lg);
    margin: 0 auto;
    padding: var(--spacing-6);
}

.container-xl {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: var(--spacing-6);
}

/* 콘텐츠 래퍼 (흰색 배경 + 그림자) */
.content {
    background: var(--color-bg-primary);
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

/* 그리드 레이아웃 */
.grid {
    display: grid;
    gap: var(--grid-gap);
}

.grid-webtoon {
    grid-template-columns: var(--grid-columns-webtoon);
}

.grid-episode {
    grid-template-columns: var(--grid-columns-episode);
}

.grid-bookmark {
    grid-template-columns: var(--grid-columns-bookmark);
}

/* Flex 유틸리티 */
.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-col {
    display: flex;
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-5 { gap: var(--spacing-5); }
.gap-6 { gap: var(--spacing-6); }


/* ============================================================================
 * 3. 타이포그래피
 * ============================================================================ */

.text-xs   { font-size: var(--font-size-xs); }
.text-sm   { font-size: var(--font-size-sm); }
.text-md   { font-size: var(--font-size-md); }
.text-base { font-size: var(--font-size-base); }
.text-lg   { font-size: var(--font-size-lg); }
.text-xl   { font-size: var(--font-size-xl); }
.text-2xl  { font-size: var(--font-size-2xl); }
.text-3xl  { font-size: var(--font-size-3xl); }
.text-4xl  { font-size: var(--font-size-4xl); }

.font-medium   { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold     { font-weight: var(--font-weight-bold); }

.text-primary   { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted     { color: var(--color-text-muted); }
.text-inverse   { color: var(--color-text-inverse); }
.text-accent    { color: var(--color-primary); }

.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }


/* ============================================================================
 * 4. 버튼
 * ============================================================================ */

/* 기본 버튼 스타일 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-5);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    line-height: var(--line-height-base);
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

/* Primary 버튼 - 주요 액션 */
.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border: none;
}

.btn-primary:hover {
    box-shadow: var(--shadow-primary-lg);
}

/* Secondary 버튼 - 보조 액션 */
.btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: var(--border-width-thick) solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-border);
    border-color: var(--color-border-hover);
}

/* Ghost 버튼 - 네비게이션 내 링크형 */
.btn-ghost {
    background: var(--color-overlay-light);
    color: var(--color-text-inverse);
    border: none;
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Success 버튼 - 긍정적 액션 */
.btn-success {
    background: var(--color-success-alt);
    color: var(--color-text-inverse);
    border: none;
}

.btn-success:hover {
    background: var(--color-success-alt-hover);
}

/* 버튼 크기 변형 */
.btn-sm {
    padding: var(--spacing-1) var(--spacing-4);
    font-size: var(--font-size-md);
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-7);
    font-size: var(--font-size-lg);
}

.btn-full {
    width: 100%;
}

/* 북마크 버튼 */
.btn-bookmark {
    background: none;
    border: var(--border-width-thick) solid var(--color-bookmark);
    color: var(--color-bookmark);
    padding: var(--spacing-1) var(--spacing-4);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-bookmark:hover {
    background: var(--color-bookmark);
    color: var(--color-bg-dark-secondary);
    transform: scale(1.05);
}

.btn-bookmark.bookmarked {
    background: var(--color-bookmark);
    color: var(--color-bg-dark-secondary);
}

/* 아이콘 북마크 (텍스트 없이 아이콘만) */
.btn-bookmark-icon {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    cursor: pointer;
    transition: transform var(--transition-base), opacity var(--transition-base);
    padding: var(--spacing-1);
}

.btn-bookmark-icon:hover {
    transform: scale(1.2);
}

.btn-bookmark-icon.bookmarked {
    animation: bounce 0.5s ease;
}

/* HTMX 요청 중 북마크 버튼 로딩 상태 */
.btn-bookmark-icon.htmx-request {
    opacity: 0.4;
    pointer-events: none;
}

/* 버튼 그룹 */
.btn-group {
    display: flex;
    gap: var(--spacing-4);
}

.btn-group-center {
    justify-content: center;
}

.btn-group-stretch > .btn,
.btn-group-stretch > a {
    flex: 1;
}


/* ============================================================================
 * 5. 카드
 * ============================================================================ */

/* 기본 카드 */
.card {
    background: var(--color-bg-primary);
    border: var(--border-width-thick) solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-7);
    transition: all var(--transition-slow);
}

.card-interactive {
    cursor: pointer;
}

.card-interactive:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

/* 카드 제목 */
.card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-4);
}

/* 카드 본문 */
.card-body {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
}

/* 카드 메타 정보 */
.card-meta {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
}

/* 에피소드 행 리스트 */
.episode-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.episode-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) var(--spacing-5);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-base);
}

.episode-row:first-child {
    border-top: 1px solid var(--color-border);
}

.episode-row:hover {
    background: var(--color-bg-secondary);
}

.episode-row-link {
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    flex: 1;
    padding: var(--spacing-2) 0;
}

.episode-row-link:hover {
    color: var(--color-primary);
}

.episode-row-num {
    font-variant-numeric: tabular-nums;
}

.episode-row-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    flex-shrink: 0;
}

/* 웹툰 카드 내 링크 */
.webtoon-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

/* 웹툰 카드 내 북마크 버튼 (절대 위치) */
.card .btn-bookmark-icon {
    position: absolute;
    top: var(--spacing-5);
    right: var(--spacing-5);
}

/* 페이지 헤더 (에피소드 목록 등) */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-8);
    flex-wrap: wrap;
    gap: var(--spacing-5);
}

.page-header-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}


/* 섹션 카드 (프로필 페이지 등) */
.card-section {
    background: var(--color-bg-primary);
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-7);
}

/* 섹션 제목 */
.card-section-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    border-bottom: var(--border-width-thick) solid var(--color-border-light);
}


/* ============================================================================
 * 6. 폼
 * ============================================================================ */

.form-group {
    margin-bottom: var(--spacing-6);
}

.form-label {
    display: block;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-2);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
}

.form-input {
    width: 100%;
    padding: var(--spacing-4) var(--spacing-5);
    border: var(--border-width-thick) solid var(--color-border);
    border-radius: var(--radius-lg);
    font-family: var(--font-family-base);
    font-size: var(--font-size-lg);
    transition: all var(--transition-slow);
    box-sizing: border-box;
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-focus-ring);
}

textarea.form-input {
    resize: vertical;
    min-height: 100px;
}

.form-help {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-1);
}

/* 에러 목록 */
.error-list {
    background: var(--color-error-light);
    border-left: var(--border-width-accent) solid var(--color-error-border);
    padding: var(--spacing-4);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-2);
}

.error-list ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.error-list li {
    color: var(--color-error-text);
    font-size: var(--font-size-md);
}

/* Auth Box - 로그인/회원가입용 */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-6);
    background: var(--color-bg-secondary);
}

.auth-box {
    background: var(--color-bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    padding: var(--spacing-9);
    width: 100%;
    max-width: var(--container-sm);
    border: var(--border-width) solid var(--color-border);
}

.auth-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    text-align: center;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-3);
}

.auth-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-8);
    font-size: var(--font-size-base);
}

.auth-links {
    text-align: center;
    margin-top: var(--spacing-7);
    padding-top: var(--spacing-7);
    border-top: var(--border-width) solid var(--color-border);
}

.auth-links a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-base);
}

.auth-links a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}


/* ============================================================================
 * 7. 메시지 / 알림
 * ============================================================================ */

.messages-container {
    max-width: var(--container-max);
    margin: var(--spacing-6) auto;
    padding: 0 var(--spacing-6);
}

/* 페이지 내부에 직접 배치할 때 (패딩/마진 제거) */
.messages-container--flush {
    padding: 0;
    margin: 0 0 var(--spacing-6) 0;
}

.message {
    padding: var(--spacing-4) var(--spacing-5);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-3);
    border-left: var(--border-width-accent) solid;
    animation: slideIn var(--transition-slow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-3);
}

.message-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    opacity: 0.6;
    transition: opacity var(--transition-base);
    color: inherit;
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
}

.message-close:hover {
    opacity: 1;
}

.message.success,
.message-success {
    background: var(--color-success-bg);
    color: var(--color-success-text);
    border-color: var(--color-success);
}

.message.error,
.message-error {
    background: var(--color-error-bg);
    color: var(--color-error-text);
    border-color: var(--color-error);
}

.message.info,
.message-info {
    background: var(--color-info-bg);
    color: var(--color-info-text);
    border-color: var(--color-info);
}

.message.warning,
.message-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning-text);
    border-color: var(--color-warning);
}


/* ============================================================================
 * 8. 네비게이션 바
 * ============================================================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-primary-gradient);
    box-shadow: var(--shadow-navbar);
    z-index: var(--z-modal);
    height: var(--navbar-height);
}

.navbar-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-6);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-logo {
    color: var(--color-text-inverse);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
}

.navbar-link {
    color: var(--color-text-inverse);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-2) var(--spacing-5);
    border-radius: var(--radius-md);
    transition: background var(--transition-base);
}

.navbar-link:hover {
    background: var(--color-overlay-light);
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    color: var(--color-text-inverse);
}

.navbar-username {
    font-weight: var(--font-weight-semibold);
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-inverse);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    padding: var(--spacing-2);
}

/* 로그아웃 버튼 (네비바 내) */
.btn-logout {
    background: var(--color-overlay-light);
    color: var(--color-text-inverse);
    border: none;
    padding: var(--spacing-2) var(--spacing-5);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    transition: background var(--transition-base);
    text-decoration: none;
    display: inline-block;
}

.btn-logout:hover {
    background: var(--color-overlay-light);
}


/* ============================================================================
 * 9. 프로필 페이지
 * ============================================================================ */

/* 프로필 헤더 (다크 그라디언트) */
.profile-header {
    background: var(--color-primary-gradient);
    color: var(--color-text-inverse);
    padding: var(--spacing-9);
    border-radius: var(--radius-2xl);
    margin-bottom: var(--spacing-8);
    text-align: center;
    box-shadow: var(--shadow-xl);
    border: var(--border-width) solid var(--color-border);
}

.profile-username {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-2);
}

.profile-email {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-bottom: var(--spacing-1);
}

.profile-date {
    font-size: var(--font-size-base);
    opacity: 0.8;
}

.profile-image {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    border: var(--border-width-accent) solid var(--color-bg-primary);
    overflow: hidden;
    margin: 0 auto var(--spacing-6);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 프로필 아바타 플레이스홀더 (이미지 없을 때) */
.profile-avatar-placeholder {
    background: var(--color-primary-gradient);
    color: var(--color-text-inverse);
    font-size: 48px;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0;
}

/* 프로필 수정 버튼 (프로필 헤더 내) */
.btn-edit-profile {
    display: inline-block;
    margin-top: var(--spacing-5);
    padding: var(--spacing-3) var(--spacing-7);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: var(--font-weight-semibold);
    transition: transform var(--transition-base), background var(--transition-base);
}

.btn-edit-profile:hover {
    transform: translateY(-2px);
    background: var(--color-primary-hover);
    box-shadow: var(--shadow-primary);
}

/* 북마크 아이템 (프로필 내 카드형 링크) */
.bookmark-item {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-5);
    border-radius: var(--radius-lg);
    border: var(--border-width-thick) solid var(--color-border);
    transition: all var(--transition-slow);
    text-decoration: none;
    color: inherit;
    display: block;
}

.bookmark-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.bookmark-item-title {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2);
    color: var(--color-text-primary);
}

.bookmark-item-meta {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.bookmark-item-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-1);
}


/* ============================================================================
 *  10. 빈 상태 (Empty State)
 * ============================================================================ */

.empty-state {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    padding: var(--spacing-10) var(--spacing-6);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-5);
    display: block;
}


/* ============================================================================
 * 10. 로딩 인디케이터
 * ============================================================================ */

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--color-border);
    border-radius: var(--radius-full);
    border-top-color: var(--color-primary);
    animation: spin 1s ease-in-out infinite;
}

.loading-spinner-lg {
    width: 32px;
    height: 32px;
    border-width: 4px;
}

.loading-text {
    text-align: center;
    padding: var(--spacing-6);
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
}


/* ============================================================================
 * 11. HTMX 관련
 * ============================================================================ */

.htmx-indicator {
    display: none;
}

.htmx-request .htmx-indicator {
    display: inline-block;
}

.htmx-request.htmx-indicator {
    display: inline-block;
}


/* ============================================================================
 * 12. 유틸리티 클래스
 * ============================================================================ */

/* 여백 (margin) */
.mt-0 { margin-top: var(--spacing-0); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-5 { margin-top: var(--spacing-5); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }

.mb-0 { margin-bottom: var(--spacing-0); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-5 { margin-bottom: var(--spacing-5); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }

/* 패딩 (padding) */
.p-0 { padding: var(--spacing-0); }
.p-4 { padding: var(--spacing-5); }
.p-6 { padding: var(--spacing-6); }
.p-8 { padding: var(--spacing-8); }

/* 너비 */
.w-full { width: 100%; }

/* 표시/숨김 */
.hidden { display: none; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* 둥근 이미지 (프로필 등) */
.avatar {
    border-radius: var(--radius-full);
    object-fit: cover;
    border: var(--border-width-accent) solid var(--color-bg-primary);
}

.avatar-lg {
    width: 120px;
    height: 120px;
}

.avatar-md {
    width: 80px;
    height: 80px;
}

.avatar-sm {
    width: 40px;
    height: 40px;
}


/* ============================================================================
 * 13. 애니메이션
 * ============================================================================ */

@keyframes slideIn {
    from {
        transform: translateY(-10px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

.animate-fade-in {
    animation: fadeIn var(--transition-slow);
}

.animate-slide-in {
    animation: slideIn var(--transition-slow);
}

.animate-bounce {
    animation: bounce 0.5s ease;
}


/* ============================================================================
 * 14. 반응형 스타일
 * ============================================================================ */

/* 태블릿/모바일 (768px 이하) */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }

    .container,
    .container-xl {
        padding: var(--spacing-5);
    }

    .content {
        padding: var(--spacing-6);
    }

    /* 네비게이션 모바일 메뉴 */
    .navbar-menu {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        background: var(--color-bg-dark-secondary);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0 var(--spacing-3);
        box-shadow: var(--shadow-xl);
        border-bottom: var(--border-width) solid var(--color-border);
        max-height: 0;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
        transition: max-height var(--transition-slide), padding var(--transition-slide);
        display: flex;
    }

    .navbar-menu.active {
        /* MB1: viewport 기반으로 긴 메뉴도 스크롤 가능 */
        max-height: calc(100vh - var(--navbar-height) - env(safe-area-inset-bottom, 0px));
        padding: var(--spacing-3);
        padding-bottom: calc(var(--spacing-3) + env(safe-area-inset-bottom, 0px));
    }

    .navbar-link {
        display: block;
        padding: var(--spacing-4) var(--spacing-5);
    }

    .navbar-user {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-2);
    }

    .btn-logout {
        text-align: center;
    }

    .navbar-toggle {
        display: block;
    }

    /* 프로필 반응형 */
    .profile-header {
        padding: var(--spacing-8) var(--spacing-6);
    }

    .profile-username {
        font-size: var(--font-size-2xl);
    }

    .profile-image {
        width: 100px;
        height: 100px;
    }

    /* 페이지 헤더 반응형 */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-4);
    }

    .page-header-title {
        width: 100%;
    }

    /* 그리드 조정 */
    .grid-webtoon {
        grid-template-columns: 1fr;
        gap: var(--grid-gap-sm);
    }

    .grid-episode {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: var(--grid-gap-xs);
    }

    .grid-bookmark {
        grid-template-columns: 1fr;
    }

    /* 버튼 그룹 세로 정렬 */
    .btn-group-responsive {
        flex-direction: column;
    }

    /* 제목 크기 축소 */
    .card-section-title {
        font-size: var(--font-size-xl);
    }
}

/* 소형 모바일 (480px 이하) */
@media (max-width: 480px) {
    .container,
    .container-xl {
        padding: var(--spacing-5);
    }

    .content {
        padding: var(--spacing-5);
    }

    .card {
        padding: var(--spacing-5);
    }

    .episode-row {
        padding: var(--spacing-3) var(--spacing-4);
    }

    .auth-box {
        padding: var(--spacing-8) var(--spacing-6);
    }

    .auth-title {
        font-size: var(--font-size-2xl);
    }

    /* 폼 입력 - iOS zoom 방지 (16px 이상 유지) */
    .form-input {
        font-size: var(--font-size-lg);
    }
}


/* ============================================================================
 * Sprint 2: Major UX (M1~M6)
 * ============================================================================ */

/* --- M1. 네비바 아바타 --- */
.navbar-user {
    min-height: var(--touch-target-min, 44px);
}

.navbar-user-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
    color: var(--color-text-inverse);
    text-decoration: none;
    transition: background var(--transition-base);
    min-height: 44px;
}

.navbar-user-link:hover {
    background: var(--color-overlay-light);
}

.navbar-avatar {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    object-fit: cover;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: var(--color-bg-tertiary);
}

.navbar-avatar--placeholder {
    background: var(--color-primary-gradient);
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-sm);
}

.navbar-logout-form {
    display: inline;
    margin: 0;
}

/* --- M1. 아바타 업로더 --- */
.avatar-uploader {
    display: flex;
    align-items: center;
    gap: var(--spacing-5);
    padding: var(--spacing-5);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg-tertiary);
    transition: border-color var(--transition-base), background var(--transition-base);
    position: relative;
}

.avatar-uploader--dragging {
    border-color: var(--color-primary);
    background: var(--color-overlay-light);
}

.avatar-uploader--error {
    border-color: var(--color-error);
}

.avatar-uploader-preview {
    flex-shrink: 0;
    width: 96px;
    height: 96px;
    border-radius: var(--radius-full);
    overflow: hidden;
    background: var(--color-bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    border: var(--border-width) solid var(--color-border);
}

.avatar-uploader-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.avatar-uploader-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-gradient);
    color: var(--color-text-inverse);
    font-size: 36px;
    font-weight: var(--font-weight-bold);
}

.avatar-uploader-controls {
    flex: 1;
    min-width: 0;
}

.avatar-uploader-hint {
    margin: 0 0 var(--spacing-2);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.avatar-uploader-pick {
    min-height: 40px;
}

.avatar-uploader-help {
    margin: var(--spacing-2) 0 0;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.avatar-uploader-error {
    margin: var(--spacing-2) 0 0;
    font-size: var(--font-size-sm);
    color: var(--color-error);
}

.avatar-uploader-remove {
    margin-top: var(--spacing-2);
    display: inline-block;
}

.avatar-uploader-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.btn-text {
    background: none;
    border: none;
    color: var(--color-primary);
    text-decoration: underline;
    cursor: pointer;
    font-size: var(--font-size-sm);
    padding: var(--spacing-1) var(--spacing-2);
    min-height: 32px;
}

.btn-text:hover {
    color: var(--color-primary-hover);
}

@media (max-width: 480px) {
    .avatar-uploader {
        flex-direction: column;
        text-align: center;
    }
}

/* --- M2. 토스트 --- */
.toast-container {
    position: fixed;
    top: calc(var(--nav-height, 60px) + var(--spacing-4));
    right: var(--spacing-4);
    z-index: var(--z-toast, 1100);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    max-width: min(420px, calc(100vw - var(--spacing-6)));
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-5);
    background: var(--color-bg-secondary);
    border: var(--border-width) solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    pointer-events: auto;
    animation: toast-enter 0.25s ease-out;
}

.toast--error { border-left-color: var(--color-error); }
.toast--success { border-left-color: var(--color-success, #3FB950); }
.toast--info { border-left-color: var(--color-primary); }

.toast-message { flex: 1; }

.toast-close {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    min-width: 24px;
    min-height: 24px;
}

.toast-close:hover { color: var(--color-text-primary); }

.toast--leaving {
    animation: toast-leave 0.3s ease-in forwards;
}

@keyframes toast-enter {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toast-leave {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(20px); }
}

@media (prefers-reduced-motion: reduce) {
    .toast { animation: none; }
    .toast--leaving { animation: none; opacity: 0; }
}

/* --- M2. 북마크 버튼 피드백 (성공 시 별 스케일) --- */
.bookmark-btn-icon {
    display: inline-block;
    transition: transform 200ms ease-out, color 200ms ease-out;
}

.bookmark-btn--active .bookmark-btn-icon {
    transform: scale(1.15);
    color: var(--color-warning, #F0B72F);
}

.bookmark-btn[aria-busy="true"] {
    opacity: 0.7;
    pointer-events: none;
}

/* HTMX 진행 상태 시 자동 aria-busy처럼 */
.bookmark-btn.htmx-request {
    opacity: 0.7;
    pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
    .bookmark-btn-icon { transition: none; }
    .bookmark-btn--active .bookmark-btn-icon { transform: none; }
}

/* --- M3. Empty State (일러스트형) --- */
.empty-state--illustrated {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-10) var(--spacing-6);
    text-align: center;
}

.empty-state-illustration {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-5);
    opacity: 0.7;
}

.empty-state-title {
    margin: 0 0 var(--spacing-2);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.empty-state-description {
    margin: 0 0 var(--spacing-6);
    max-width: 420px;
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
}

.empty-state-cta {
    min-height: 44px;
}

/* --- M4. 키보드 치트시트 모달 --- */
.shortcut-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal, 1000);
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    animation: fade-in 0.15s ease-out;
}

.shortcut-modal {
    background: var(--color-bg-secondary);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    max-width: 480px;
    width: 100%;
    max-height: calc(100vh - var(--spacing-10));
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    color: var(--color-text-primary);
}

.shortcut-modal-title {
    margin: 0 0 var(--spacing-5);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.shortcut-modal-close {
    appearance: none;
    background: transparent;
    border: var(--border-width) solid transparent;
    color: var(--color-text-secondary);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

.shortcut-modal-close:hover,
.shortcut-modal-close:focus-visible {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border-color: var(--color-border);
    outline: none;
}

.shortcut-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: var(--spacing-3);
}

.shortcut-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-4);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-md);
    background: var(--color-bg-tertiary);
}

.shortcut-keys {
    display: flex;
    gap: var(--spacing-1);
    flex-shrink: 0;
}

.shortcut-key {
    display: inline-block;
    min-width: 28px;
    padding: var(--spacing-1) var(--spacing-2);
    background: var(--color-bg-primary);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-family-mono, monospace);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    box-shadow: 0 1px 0 var(--color-border);
}

.shortcut-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    text-align: right;
}

.shortcut-fab {
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    z-index: var(--z-fab, 900);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    border: var(--border-width) solid var(--color-border);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base), background var(--transition-base);
}

.shortcut-fab:hover {
    background: var(--color-bg-tertiary);
    transform: scale(1.05);
}

@media (max-width: 480px) {
    .shortcut-fab {
        bottom: var(--spacing-4);
        right: var(--spacing-4);
    }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .shortcut-modal-backdrop { animation: none; }
    .shortcut-fab:hover { transform: none; }
}

/* --- M5. 스켈레톤 로딩 --- */
.skeleton {
    position: relative;
    overflow: hidden;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
}

.skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.04) 50%,
        transparent 100%
    );
    animation: skeleton-shimmer 1.4s ease-in-out infinite;
}

.skeleton--text {
    height: 1em;
    margin: var(--spacing-1) 0;
    border-radius: var(--radius-sm);
}

.skeleton--title {
    height: 1.5em;
    width: 60%;
}

.skeleton--card {
    aspect-ratio: 3 / 4;
    border-radius: var(--radius-lg);
}

.skeleton--row {
    height: 56px;
    margin-bottom: var(--spacing-2);
}

.skeleton--avatar {
    width: 96px;
    height: 96px;
    border-radius: var(--radius-full);
}

@keyframes skeleton-shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@media (prefers-reduced-motion: reduce) {
    .skeleton::after { animation: none; }
}

/* x-cloak 전역 (FOUC 방지) */
[x-cloak] { display: none !important; }

/* --- M6. 터치 타겟 44px 보장 --- */
:root {
    --touch-target-min: 44px;
}

/* 기본 인터랙티브 요소 터치 타겟 */
.btn,
.btn-primary,
.btn-secondary,
.btn-logout,
.navbar-link,
.navbar-toggle,
.form-checkbox,
.message-close {
    min-height: 44px;
}

.episode-row {
    min-height: 56px;
}

/* iOS에서 tap highlight 제거 (대비는 focus ring으로) */
a, button, [role="button"], input, select, textarea {
    -webkit-tap-highlight-color: transparent;
}

/* 작은 아이콘 버튼은 padding으로 터치 영역 확대 */
.toast-close,
.message-close {
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* --- M1. 파일 선택 input 스타일 (레거시 대응) --- */
.form-file {
    display: block;
    width: 100%;
    padding: var(--spacing-3);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
}

.form-file::file-selector-button {
    padding: var(--spacing-2) var(--spacing-4);
    margin-right: var(--spacing-3);
    background: var(--color-bg-tertiary);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    cursor: pointer;
    font-weight: var(--font-weight-medium);
}

.form-file::file-selector-button:hover {
    background: var(--color-overlay-light);
}

/* =============================================================================
   Sprint 3 · Polish
   ============================================================================= */

/* ---------- Icon system (Lucide sprite) --------------------------------- */
.icon {
    display: inline-block;
    flex-shrink: 0;
    vertical-align: text-bottom;
    line-height: 0;
    color: currentColor;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    pointer-events: none;
}

/* 버튼/링크 내부 아이콘 + 텍스트 정렬용 유틸 */
.btn .icon,
.nav-link .icon,
.episode-link .icon {
    vertical-align: -0.15em;
    margin-right: 0.375em;
}
.btn .icon:last-child,
.btn .icon:only-child {
    margin-right: 0;
}

/* 북마크 별 아이콘 애니메이션은 기존 .bookmark-btn 규칙을 재사용 */
.bookmark-btn .icon {
    transition: transform var(--transition-fast), color var(--transition-fast);
}

/* ---------- Episode badges (P3) ----------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    line-height: 1.4;
    border-radius: var(--radius-full, 999px);
    border: 1px solid transparent;
    letter-spacing: 0.02em;
    white-space: nowrap;
}
.badge .icon {
    width: 12px;
    height: 12px;
    margin: 0;
}
.badge--new {
    background: var(--color-accent);
    color: #fff;
}
.badge--ongoing {
    background: color-mix(in srgb, var(--color-success) 18%, transparent);
    color: var(--color-success);
    border-color: color-mix(in srgb, var(--color-success) 30%, transparent);
}
.badge--complete {
    background: var(--color-bg-tertiary);
    color: var(--color-text-muted);
    border-color: var(--color-border);
}
.badge--read {
    background: color-mix(in srgb, var(--color-text-muted) 15%, transparent);
    color: var(--color-text-secondary);
}

/* ---------- P2: hover lift 정리 ----------------------------------------- */
/* 카드 타입에만 translateY 허용, 버튼/링크 등은 subtle-only */
@media (hover: hover) {
    .btn:hover:not(:disabled),
    .nav-link:hover,
    .episode-link:hover,
    .bookmark-btn:hover:not(:disabled) {
        transform: none;
    }
}

/* ---------- P4: viewer header lock indicator ---------------------------- */
.viewer-lock-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-width: var(--touch-target-min);
    min-height: var(--touch-target-min);
    padding: 8px 12px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast),
        box-shadow var(--transition-fast);
}
.viewer-lock-toggle[aria-pressed="true"] {
    background: color-mix(in srgb, var(--color-accent) 18%, transparent);
    border-color: var(--color-accent);
    color: var(--color-accent);
    box-shadow: 0 0 0 1px var(--color-accent) inset;
}
.viewer-lock-toggle[aria-pressed="true"]::after {
    content: "";
    position: absolute;
    inset: -3px;
    border-radius: calc(var(--radius-md) + 3px);
    border: 1.5px solid color-mix(in srgb, var(--color-accent) 45%, transparent);
    pointer-events: none;
}
.viewer-lock-toggle .icon {
    width: 18px;
    height: 18px;
    margin: 0;
}
.viewer-lock-toggle__label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}
@media (max-width: 480px) {
    .viewer-lock-toggle__label {
        display: none;
    }
}

/* ---------- P5: viewer image gap 제거 ---------------------------------- */
.viewer-container {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.viewer-container > img,
.viewer-container > .viewer-image {
    display: block;
    margin: 0;
    padding: 0;
    border: 0;
    vertical-align: top; /* inline gap 제거 */
}

/* ---------- A5: viewer live region ------------------------------------- */
.viewer-live-region {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* =============================================================================
   Sprint 4 · Mobile Polish
   ============================================================================= */

/* ---------- MB4: safe-area-inset (iOS 노치/홈 인디케이터) --------------- */
.navbar {
    padding-top: env(safe-area-inset-top, 0px);
    padding-left: env(safe-area-inset-left, 0px);
    padding-right: env(safe-area-inset-right, 0px);
}

body.viewer-page .viewer-header {
    padding-top: env(safe-area-inset-top, 0px);
}

.toast-container {
    padding-right: max(var(--spacing-4), env(safe-area-inset-right, 0px));
    padding-bottom: max(var(--spacing-4), env(safe-area-inset-bottom, 0px));
    padding-left: max(var(--spacing-4), env(safe-area-inset-left, 0px));
}

.shortcut-fab {
    bottom: max(var(--spacing-5), calc(env(safe-area-inset-bottom, 0px) + var(--spacing-4)));
    right: max(var(--spacing-5), calc(env(safe-area-inset-right, 0px) + var(--spacing-4)));
}

/* ---------- MB2: auth-box 480px 이하 최적화 ----------------------------- */
@media (max-width: 480px) {
    .auth-container {
        padding: var(--spacing-4);
        padding-top: max(var(--spacing-6), env(safe-area-inset-top, 0px));
        padding-bottom: max(var(--spacing-6), env(safe-area-inset-bottom, 0px));
        align-items: flex-start; /* 작은 화면에서 상단 정렬 (키보드 뜰 때 안정적) */
    }

    .auth-box {
        padding: var(--spacing-6) var(--spacing-5);
        border-radius: var(--radius-xl);
        box-shadow: var(--shadow-lg);
    }

    .auth-title {
        font-size: var(--font-size-xl);
        margin-bottom: var(--spacing-2);
    }

    .auth-subtitle {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-6);
    }

    .auth-box .form-group {
        margin-bottom: var(--spacing-4);
    }

    .auth-box .btn {
        width: 100%;
    }
}

/* ---------- MB3: viewer nav 480px 이하 아이콘 전용 ---------------------- */
@media (max-width: 480px) {
    .viewer-controls .btn {
        min-width: var(--touch-target-min);
        padding: 0 var(--spacing-3);
    }

    /* 북마크 버튼은 아이콘만 유지, 목록/홈은 축약 */
    .viewer-controls .btn-secondary {
        font-size: 0; /* 텍스트 감춤 */
        position: relative;
    }
    .viewer-controls .btn-secondary::before {
        font-size: var(--font-size-sm);
        font-weight: var(--font-weight-medium);
    }
    .viewer-controls .btn-secondary[href*="webtoon"]::before {
        content: "목록";
    }
    .viewer-controls .btn-secondary[href="/"]::before {
        content: "홈";
    }

    .viewer-title {
        font-size: var(--font-size-sm);
        max-width: 45vw;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}