/**
 * 인증 관련 CSS 스타일 (spa-layout.php 기반)
 * 기존 app.css와 함께 사용
 */

/* =================================
   기본 변수 정의 (app.css가 없을 경우 대비)
   ================================= */

:root {
    /* 색상 변수 */
    --primary-green: #00c896;
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --text-muted: #a0aec0;
    --text-success: #00c896;
    --text-warning: #f6ad55;
    --text-danger: #e53e3e;
    --text-info: #4299e1;
    
    --bg-white: #ffffff;
    --bg-hover: rgba(0, 0, 0, 0.05);
    --bg-lighter: #f7fafc;
    --border-light: #e2e8f0;
    
    /* 간격 변수 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    
    /* 폰트 변수 */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    
    /* 반지름 변수 */
    --radius-sm: 0.25rem;
    --radius-lg: 0.5rem;
    --radius-full: 50%;
    
    /* 그림자 변수 */
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* 전환 변수 */
    --transition-fast: all 0.15s ease;
    --transition-normal: all 0.3s ease;
    
    /* z-index 변수 */
    --z-dropdown: 1000;
}

/* =================================
   인증 컨테이너 기본 스타일
   ================================= */

.auth-container {
    transition: var(--transition-normal);
}

.auth-container.hidden {
    display: none !important;
}

/* =================================
   인증 버튼 및 사용자 메뉴 스타일
   ================================= */

/* 인증 버튼 컨테이너 */
.auth-buttons {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.auth-buttons .btn {
    white-space: nowrap;
    min-width: auto;
}

/* 사용자 정보 표시 영역 */
.user-info-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.user-info-display:hover {
    background-color: var(--bg-hover);
}

/* 사용자 아바타 */
.user-avatar {
    position: relative;
    flex-shrink: 0;
}

.user-avatar img {
    border: 2px solid var(--border-light);
    transition: var(--transition-fast);
}

.user-avatar img:hover {
    border-color: var(--primary-green);
}

.user-avatar-placeholder {
    width: 32px;
    height: 32px;
    background: var(--primary-green);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-medium);
    font-size: 14px;
}

/* 사용자 세부 정보 */
.user-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-width: 0; /* flex 아이템이 줄어들 수 있도록 */
}

.user-name {
    display: flex;
    align-items: center;
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-name i {
    margin-left: var(--spacing-xs);
    font-size: var(--font-size-xs);
}

/* 사용자 메뉴 드롭다운 */
.user-menu-dropdown {
    position: relative;
}

.user-menu-toggle {
    border-radius: var(--radius-full);
    padding: var(--spacing-xs);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    border: none;
    background: transparent;
    cursor: pointer;
}

.user-menu-toggle:hover {
    background-color: var(--bg-hover);
    transform: translateY(-1px);
}

.user-menu-toggle.active {
    background-color: var(--primary-green);
    color: white;
}

.user-menu-toggle i {
    transition: var(--transition-fast);
}

/* 드롭다운 메뉴 개선 */
.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    z-index: var(--z-dropdown);
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 240px;
    max-width: 320px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.95);
    transition: var(--transition-fast);
    padding: var(--spacing-sm) 0;
    margin-top: var(--spacing-xs);
    backdrop-filter: blur(10px);
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* 드롭다운 헤더 개선 */
.user-dropdown .dropdown-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--bg-lighter) 0%, var(--bg-white) 100%);
}

.user-dropdown .dropdown-header .text-sm {
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
}

.user-dropdown .dropdown-header .text-xs {
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* 드롭다운 아이템 개선 */
.user-dropdown .dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--text-secondary);
    text-decoration: none;
    border: none;
    background: none;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: var(--font-size-sm);
    width: 100%;
    text-align: left;
}

.user-dropdown .dropdown-item:hover,
.user-dropdown .dropdown-item:focus {
    background: var(--bg-hover);
    color: var(--text-primary);
    text-decoration: none;
    transform: translateX(4px);
}

.user-dropdown .dropdown-item i {
    width: 16px;
    text-align: center;
    flex-shrink: 0;
}

/* 특별 상태 드롭다운 아이템 */
.user-dropdown .dropdown-item.text-warning:hover {
    background: rgba(246, 173, 85, 0.1);
    color: var(--text-warning);
}

.user-dropdown .dropdown-item.text-info:hover {
    background: rgba(66, 153, 225, 0.1);
    color: var(--text-info);
}

.user-dropdown .dropdown-item.text-danger:hover {
    background: rgba(229, 62, 62, 0.1);
    color: var(--text-danger);
}

/* 드롭다운 구분선 */
.user-dropdown .dropdown-divider {
    margin: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--border-light);
    opacity: 0.6;
}

/* 로그아웃 버튼 특별 스타일 */
.user-dropdown .logout-btn {
    border-top: 1px solid var(--border-light);
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-md);
    color: var(--text-danger);
    font-weight: var(--font-weight-medium);
}

.user-dropdown .logout-btn:hover {
    background: rgba(229, 62, 62, 0.1);
    color: var(--text-danger);
}

/* =================================
   모바일 사용자 메뉴 스타일
   ================================= */

.mobile-user-menu {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    background: var(--bg-lighter);
}

.mobile-user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--bg-white);
    border-radius: var(--radius-sm);
}

.mobile-user-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.mobile-user-action {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

.mobile-user-action:hover {
    background: var(--bg-hover);
    border-color: var(--primary-green);
    color: var(--text-primary);
    text-decoration: none;
}

.mobile-user-action.logout-btn-mobile {
    color: var(--text-danger);
    border-color: rgba(229, 62, 62, 0.2);
}

.mobile-user-action.logout-btn-mobile:hover {
    background: rgba(229, 62, 62, 0.1);
    border-color: var(--text-danger);
}

/* =================================
   유틸리티 클래스
   ================================= */

/* 정렬 클래스 */
.d-flex {
    display: flex;
}

.align-center {
    align-items: center;
}

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

.gap-xs {
    gap: var(--spacing-xs);
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

/* 텍스트 클래스 */
.text-xs {
    font-size: var(--font-size-xs);
}

.text-sm {
    font-size: var(--font-size-sm);
}

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

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

.text-secondary {
    color: var(--text-secondary);
}

.text-muted {
    color: var(--text-muted);
}

.text-success {
    color: var(--text-success);
}

.text-warning {
    color: var(--text-warning);
}

.text-danger {
    color: var(--text-danger);
}

.text-info {
    color: var(--text-info);
}

/* 마진 클래스 */
.ml-xs {
    margin-left: var(--spacing-xs);
}

.mr-xs {
    margin-right: var(--spacing-xs);
}

/* 둥근 모서리 */
.rounded-full {
    border-radius: var(--radius-full);
}

/* 배경 클래스 */
.bg-primary {
    background-color: var(--primary-green);
}

/* 전환 효과 */
.transition-colors {
    transition: color 0.15s ease, background-color 0.15s ease;
}

.transition-all {
    transition: var(--transition-fast);
}

/* =================================
   애니메이션 효과
   ================================= */

/* 로그인 상태 전환 애니메이션 */
.auth-container {
    transition: var(--transition-normal);
}

/* 사용자 정보 페이드 인 */
@keyframes fadeInUser {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.user-info-display.animate-in {
    animation: fadeInUser 0.3s ease forwards;
}

/* 드롭다운 등장 애니메이션 */
@keyframes dropdownSlideIn {
    from {
        opacity: 0;
        transform: translateY(-10px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.user-dropdown.show {
    animation: dropdownSlideIn 0.2s ease forwards;
}

/* 호버 효과 개선 */
.user-dropdown .dropdown-item {
    position: relative;
    overflow: hidden;
}

.user-dropdown .dropdown-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 200, 150, 0.1), transparent);
    transition: var(--transition-fast);
    z-index: -1;
}

.user-dropdown .dropdown-item:hover::before {
    left: 100%;
}

/* =================================
   반응형 인증 메뉴
   ================================= */

@media (max-width: 767.98px) {
    .auth-buttons {
        gap: var(--spacing-xs);
    }
    
    .auth-buttons .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        min-height: 32px;
    }
    
    .user-info-display {
        padding: var(--spacing-xs);
    }
    
    .user-details {
        display: none; /* 모바일에서는 아바타와 드롭다운만 표시 */
    }
    
    .user-dropdown {
        right: 0;
        left: auto;
        min-width: 200px;
        transform-origin: top right;
    }
    
    .user-dropdown .dropdown-item {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
    
    .mobile-user-menu {
        display: block;
    }
}

@media (max-width: 575.98px) {
    .auth-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-xs);
        width: 100%;
    }
    
    .auth-buttons .btn {
        justify-content: center;
        width: 100%;
    }
    
    .user-info-display {
        justify-content: center;
    }
    
    .user-dropdown {
        position: fixed;
        top: auto;
        bottom: var(--spacing-lg);
        left: var(--spacing-lg);
        right: var(--spacing-lg);
        max-width: none;
        transform-origin: bottom center;
    }
}

/* =================================
   다크 테마 지원
   ================================= */

[data-theme="dark"] .user-info-display {
    background-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .user-info-display:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .user-dropdown {
    background: rgba(45, 45, 45, 0.95);
    border-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
}

[data-theme="dark"] .user-dropdown .dropdown-header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .user-dropdown .dropdown-item:hover,
[data-theme="dark"] .user-dropdown .dropdown-item:focus {
    background-color: rgba(255, 255, 255, 0.1);
    color: #e2e8f0;
}

[data-theme="dark"] .user-dropdown .dropdown-divider {
    border-top-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .user-dropdown .logout-btn {
    border-top-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .mobile-user-menu {
    background: rgba(45, 45, 45, 0.8);
}

[data-theme="dark"] .mobile-user-info,
[data-theme="dark"] .mobile-user-action {
    background: rgba(45, 45, 45, 0.9);
    border-color: rgba(255, 255, 255, 0.1);
    color: #e2e8f0;
}

[data-theme="dark"] .mobile-user-action:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-green);
}

/* =================================
   접근성 개선
   ================================= */

/* 고대비 모드 */
@media (prefers-contrast: high) {
    .user-dropdown {
        border-width: 2px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }
    
    .user-dropdown .dropdown-item {
        border: 1px solid transparent;
    }
    
    .user-dropdown .dropdown-item:hover,
    .user-dropdown .dropdown-item:focus {
        border-color: var(--primary-green);
        outline: 2px solid var(--primary-green);
    }
}

/* 모션 감소 모드 */
@media (prefers-reduced-motion: reduce) {
    .user-dropdown,
    .user-dropdown .dropdown-item,
    .user-menu-toggle,
    .auth-buttons,
    .auth-container {
        transition: none !important;
        animation: none !important;
    }
    
    .user-dropdown .dropdown-item:hover {
        transform: none !important;
    }
    
    .user-menu-toggle:hover {
        transform: none !important;
    }
}

/* 포커스 개선 */
.user-menu-toggle:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

.user-dropdown .dropdown-item:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: -2px;
}

.mobile-user-action:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* =================================
   로딩 상태 및 에러 상태
   ================================= */

.auth-skeleton {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.auth-skeleton .skeleton-avatar {
    width: 32px;
    height: 32px;
    background: var(--bg-lighter);
    border-radius: var(--radius-full);
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.auth-skeleton .skeleton-text {
    height: 14px;
    background: var(--bg-lighter);
    border-radius: var(--spacing-xs);
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.auth-skeleton .skeleton-text.short {
    width: 80px;
}

.auth-skeleton .skeleton-text.long {
    width: 120px;
}

@keyframes skeleton-pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.4;
    }
}

/* 에러 상태 */
.auth-error {
    color: var(--text-danger);
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs);
    text-align: center;
}

/* =================================
   버튼 스타일 (기본 버튼이 없을 경우 대비)
   ================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid;
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.btn-outline {
    background: transparent;
    border-color: var(--border-light);
    color: var(--text-secondary);
}

.btn-outline:hover {
    background: var(--bg-hover);
    border-color: var(--primary-green);
    color: var(--primary-green);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-green);
    border-color: var(--primary-green);
    color: white;
}

.btn-primary:hover {
    background: #00b085;
    border-color: #00b085;
    color: white;
    text-decoration: none;
}

.btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--text-secondary);
}

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

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}