/* 공통 변수 */
:root {
    /* 테마 색상 */
    --theme-primary: #3f6ad8;
    --theme-secondary: #6c757d;
    --theme-success: #3ac47d;
    --theme-info: #16aaff;
    --theme-warning: #f7b924;
    --theme-danger: #d92550;
    --theme-light: #eee;
    --theme-dark: #343a40;
    --theme-focus: #444054;

    /* 레이아웃 */
    --sidebar-width: 280px;
    --header-height: 60px;
    
    /* 기본 색상 */
    --color-bg: #000;
    --color-text: #fff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-border: rgba(255, 255, 255, 0.1);
    --color-overlay: rgba(0, 0, 0, 0.9);
    
    /* 폼 요소 색상 */
    --input-bg: rgba(255, 255, 255, 0.1);
    --input-border: rgba(255, 255, 255, 0.2);
    --input-focus-bg: rgba(255, 255, 255, 0.15);
    --input-focus-border: rgba(255, 255, 255, 0.3);
    --input-placeholder: rgba(255, 255, 255, 0.5);
    
    /* 간격 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* 반경 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* 애니메이션 */
    --transition-fast: 0.2s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;
    --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
}

/* 기본 스타일 */
body {
    margin: 0;
    overflow-x: hidden;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
}

/* 폼 요소 스타일 */
input, button, select, textarea {
    font-family: inherit;
}

.form-control {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--color-text);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
}

.form-control:focus {
    background: var(--input-focus-bg);
    border-color: var(--input-focus-border);
    color: var(--color-text);
    box-shadow: none;
}

.form-control::placeholder {
    color: var(--input-placeholder);
}

/* 에러 메시지 */
.error-message {
    color: var(--theme-danger);
    font-size: 0.9rem;
    margin-top: calc(var(--spacing-sm) * -1);
    margin-bottom: var(--spacing-md);
}

/* Alert Modal 스타일 수정 */
.swal2-actions {
    gap: 0.8rem;
}

.swal2-confirm {
    background-color: #007bff !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0.5rem 2rem !important;
}

.swal2-cancel {
    background: none !important;
    border: none !important;
    color: #6c757d !important;
    box-shadow: none !important;
    padding: 0.5rem 2rem !important;
}

.swal2-cancel:hover {
    background-color: rgba(108, 117, 125, 0.1) !important;
}

/* Sweet Alert 커스텀 스타일 */
.swal2-popup {
    border-radius: 1rem;
    padding: 2rem;
}

.swal2-title {
    font-size: 1.5rem !important;
    margin-bottom: 1rem !important;
}

.swal2-html-container {
    font-size: 1rem !important;
    margin: 1rem 0 !important;
}

/* Sweet Alert 다크 테마 커스텀 스타일 */
.custom-popup {
    border-radius: 1rem !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    background: #2b2b2b !important;
}

.custom-title {
    color: #fff !important;
    font-size: 1.5rem !important;
    font-weight: 600 !important;
}

.custom-text {
    color: #ccc !important;
    font-size: 1rem !important;
}

.custom-icon {
    border-color: #fff !important;
    color: #fff !important;
}

.custom-confirm {
    background-color: #ffffff !important;
    color: #2b2b2b !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0.6rem 2rem !important;
    font-weight: 600 !important;
    transition: all 0.2s ease !important;
}

.custom-confirm:hover {
    background-color: #f0f0f0 !important;
    transform: translateY(-1px) !important;
}

.custom-deny {
    background-color: rgba(255, 255, 255, 0.1) !important;
    color: #ffffff !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    box-shadow: none !important;
    padding: 0.6rem 2rem !important;
    font-weight: 500 !important;
    transition: all 0.2s ease !important;
}

.custom-deny:hover {
    background-color: rgba(255, 255, 255, 0.15) !important;
    border-color: rgba(255, 255, 255, 0.3) !important;
    transform: translateY(-1px) !important;
}

.custom-cancel {
    background: none !important;
    border: none !important;
    color: #888 !important;
    box-shadow: none !important;
    padding: 0.6rem 2rem !important;
    transition: all 0.2s ease !important;
}

.custom-cancel:hover {
    color: #aaa !important;
    background-color: rgba(255, 255, 255, 0.05) !important;
}

/* Sweet Alert 아이콘 색상 */
.swal2-icon.swal2-info {
    border-color: #fff !important;
    color: #fff !important;
}

/* Sweet Alert 버튼 순서 조정 */
.custom-actions {
    flex-direction: row !important;
}

.swal2-actions button {
    order: 3; /* 기본값, 회원가입 버튼 */
}

.swal2-confirm {
    order: 2 !important; /* 로그인 버튼 */
}

.swal2-cancel {
    order: 1 !important; /* 취소 버튼 */
}

/* 어드민 버튼 스타일 */
.floating-admin-button {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
}

.admin-button {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    position: relative;
}

.admin-button:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.admin-tooltip {
    position: absolute;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.8rem;
    right: 60px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.admin-button:hover .admin-tooltip {
    opacity: 1;
    visibility: visible;
}

/* 헤더 스타일 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.logo-image {
    height: 32px;
    width: auto;
    object-fit: contain;
    transition: transform var(--transition-fast);
}

.logo:hover .logo-image {
    transform: scale(1.05);
}

/* 관리자 페이지용 로고 텍스트 */
.sidebar-logo .logo-text {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-text);
    margin-left: 0.5rem;
}

/* 반응형 로고 스타일 */
@media (max-width: 768px) {
    .logo-image {
        height: 28px;
    }
    
    .sidebar-logo .logo-text {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .logo-image {
        height: 24px;
    }
    
    .sidebar-logo .logo-text {
        font-size: 0.9rem;
    }
}

/* 인증 버튼 */
.auth-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-text {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

.btn-sign-up {
    background: var(--color-text);
    color: var(--color-bg);
    border: none;
    padding: 0.35rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.btn-sign-up:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-1px);
}

/* 사용자 드롭다운 스타일 */
.user-dropdown .btn-user {
    color: var(--color-text);
    background: none;
    border: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.35rem 1rem;
}

.user-dropdown .btn-user:hover,
.user-dropdown .btn-user:focus {
    color: var(--color-text-secondary);
}

.user-dropdown .dropdown-menu {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-top: 0.5rem;
    padding: 0.5rem;
    backdrop-filter: blur(10px);
}

.user-dropdown .dropdown-item {
    color: var(--color-text);
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
}

.user-dropdown .dropdown-item:hover {
    background: rgba(255, 255, 255, 0.1);
}

.dropdown-item-form {
    margin: 0;
    padding: 0;
}

.dropdown-item-form button {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
}

/* 모바일 최적화 */
@media screen and (max-width: 767px) {
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="tel"],
    input[type="search"],
    select {
        font-size: 16px !important;
    }
}

/* 반응형 스타일 */
@media (max-width: 768px) {
    .header {
        padding: 1rem;
    }
}