.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background-color:var(--bg-secondary);padding:var(--spacing-md)}.login-box{background:var(--color-white);padding:var(--spacing-2xl);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:400px;border:1px solid var(--border-color)}.login-logo{display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm)}.login-logo-icon{width:40px;height:40px;background-color:var(--color-primary);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center}.login-logo-icon svg{width:24px;height:24px;color:#fff}.login-box h1{font-size:1.75rem;font-weight:600;color:var(--color-gray-900);letter-spacing:-.02em}.subtitle{color:var(--color-gray-500);text-align:center;margin-bottom:var(--spacing-xl);font-size:.9375rem}.form-group{margin-bottom:var(--spacing-lg)}.form-group 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1rem;background-color:var(--color-primary);color:var(--color-white);border-radius:var(--radius-md);font-size:.9375rem;font-weight:600;transition:background-color var(--transition-fast),transform var(--transition-fast)}.login-button:hover:not(:disabled){background-color:var(--color-primary-hover)}.login-button:active:not(:disabled){transform:scale(.98)}.login-button:disabled{opacity:.6;cursor:not-allowed}.login-footer{margin-top:var(--spacing-xl);padding-top:var(--spacing-lg);border-top:1px solid var(--border-color);text-align:center}.login-footer p{color:var(--color-gray-500);font-size:.8125rem}.email-list{display:flex;flex-direction:column}.email-item{display:flex;align-items:flex-start;gap:var(--spacing-md);padding:var(--spacing-md);background-color:var(--color-white);border-bottom:1px solid var(--border-color);cursor:pointer;transition:background-color 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.email-avatar{background-color:var(--color-primary);color:#fff}.email-content{flex:1;min-width:0}.email-header{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-sm);margin-bottom:2px}.email-from{font-size:.875rem;color:var(--color-gray-700);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.email-item.unread .email-from{font-weight:600;color:var(--color-gray-900)}.email-date{font-size:.75rem;color:var(--color-gray-500);white-space:nowrap;flex-shrink:0}.email-item.unread .email-date{color:var(--color-primary);font-weight:500}.email-subject{font-size:.875rem;color:var(--color-gray-900);margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.email-item.unread .email-subject{font-weight:600}.email-preview{font-size:.8125rem;color:var(--color-gray-500);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.4}.email-list-wrapper{background-color:var(--color-white);border-radius:var(--radius-md);border:1px solid 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var(--transition-fast)}.logout-button:hover{background-color:var(--bg-tertiary);color:var(--color-error)}.logout-button svg{width:18px;height:18px}.main-content{flex:1;display:flex;flex-direction:column;min-width:0}.main-header{background-color:var(--color-white);border-bottom:1px solid var(--border-color);padding:var(--spacing-md) var(--spacing-lg);display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md)}.main-header h2{font-size:1.125rem;font-weight:600;color:var(--color-gray-900)}.header-actions{display:flex;align-items:center;gap:var(--spacing-sm)}.icon-button{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-md);color:var(--color-gray-600);transition:all var(--transition-fast)}.icon-button:hover{background-color:var(--bg-tertiary);color:var(--color-gray-900)}.icon-button:disabled{opacity:.5;cursor:not-allowed}.icon-button svg{width:20px;height:20px}.icon-button.spinning svg{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.email-list-container{flex:1;overflow-y:auto;padding:var(--spacing-md)}.loading-state,.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-2xl);text-align:center;color:var(--color-gray-500)}.empty-state-icon{width:64px;height:64px;background-color:var(--bg-tertiary);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;margin-bottom:var(--spacing-lg)}.empty-state-icon svg{width:32px;height:32px;color:var(--color-gray-400)}.empty-state h3{font-size:1rem;font-weight:600;color:var(--color-gray-700);margin-bottom:var(--spacing-xs)}.empty-state p{font-size:.875rem;color:var(--color-gray-500)}.error-message{background-color:#fef2f2;color:var(--color-error);padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-md);font-size:.875rem;border:1px solid #fecaca}@media (max-width: 768px){.sidebar{position:fixed;left:-240px;top:0;bottom:0;z-index:100;transition:left var(--transition-normal)}.sidebar.open{left:0}.main-content{width:100%}}.email-detail-layout{display:flex;min-height:100vh;background-color:var(--bg-secondary)}.sidebar{width:240px;background-color:var(--color-white);border-right:1px solid var(--border-color);display:flex;flex-direction:column;flex-shrink:0}.detail-main{flex:1;display:flex;flex-direction:column;min-width:0;background-color:var(--color-white);margin:var(--spacing-md);margin-left:0;border-radius:var(--radius-lg);border:1px solid var(--border-color);overflow:hidden}.detail-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--border-color);background-color:var(--color-white)}.detail-header-left,.detail-header-right{display:flex;align-items:center;gap:var(--spacing-sm)}.back-button{display:flex;align-items:center;gap:var(--spacing-xs);padding:.5rem 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svg{width:14px;height:14px}.sender-date{font-size:.8125rem;color:var(--color-gray-500);white-space:nowrap;flex-shrink:0}.view-toggle{display:flex;gap:2px;background-color:var(--bg-tertiary);padding:2px;border-radius:var(--radius-md);margin-bottom:var(--spacing-lg);width:fit-content}.view-toggle button{padding:.5rem 1rem;border-radius:calc(var(--radius-md) - 2px);font-size:.8125rem;font-weight:500;color:var(--color-gray-600);transition:all var(--transition-fast)}.view-toggle button:hover:not(.active){color:var(--color-gray-900)}.view-toggle 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svg{width:32px;height:32px;color:var(--color-error)}.error-state h3{font-size:1rem;font-weight:600;color:var(--color-gray-700);margin-bottom:var(--spacing-xs)}.error-state p{font-size:.875rem;color:var(--color-gray-500);margin-bottom:var(--spacing-lg)}.error-state .back-button{background-color:var(--bg-tertiary)}@media (max-width: 768px){.detail-main{margin:0;border-radius:0;border:none}.email-detail-content{padding:var(--spacing-md)}.email-subject-title{font-size:1.25rem}}.admin-login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background-color:var(--color-gray-900);padding:var(--spacing-md)}.admin-login-box{background:var(--color-white);padding:var(--spacing-2xl);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:420px}.admin-login-header{text-align:center;margin-bottom:var(--spacing-xl)}.admin-logo{display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm)}.admin-logo-icon{width:44px;height:44px;background-color:var(--color-gray-900);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center}.admin-logo-icon svg{width:24px;height:24px;color:#fff}.admin-login-header 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.error-message{background-color:#fef2f2;color:var(--color-error);padding:.75rem 1rem;border-radius:var(--radius-md);margin-bottom:var(--spacing-lg);font-size:.875rem;border:1px solid #fecaca}.admin-login-button{width:100%;padding:.75rem 1rem;background-color:var(--color-gray-900);color:var(--color-white);border-radius:var(--radius-md);font-size:.9375rem;font-weight:600;transition:background-color var(--transition-fast),transform var(--transition-fast)}.admin-login-button:hover:not(:disabled){background-color:var(--color-gray-800)}.admin-login-button:active:not(:disabled){transform:scale(.98)}.admin-login-button:disabled{opacity:.6;cursor:not-allowed}.admin-login-footer{margin-top:var(--spacing-xl);padding-top:var(--spacing-lg);border-top:1px solid var(--border-color);text-align:center}.admin-login-footer p{color:var(--color-gray-500);font-size:.8125rem}.admin-layout{display:flex;min-height:100vh;background-color:var(--bg-secondary)}.admin-loading{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--color-gray-500)}.admin-sidebar{width:240px;background-color:var(--color-gray-900);display:flex;flex-direction:column;flex-shrink:0}.admin-sidebar-header{padding:var(--spacing-lg);border-bottom:1px solid var(--color-gray-800)}.admin-logo{display:flex;align-items:center;gap:var(--spacing-sm)}.admin-logo-icon{width:32px;height:32px;background-color:var(--color-white);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center}.admin-logo-icon svg{width:18px;height:18px;color:var(--color-gray-900)}.admin-logo-text{font-size:1.125rem;font-weight:600;color:var(--color-white)}.admin-nav{flex:1;padding:var(--spacing-md)}.admin-nav-item{display:flex;align-items:center;gap:var(--spacing-sm);width:100%;padding:.625rem 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svg{width:18px;height:18px}.admin-main{flex:1;overflow-y:auto}.admin-content{padding:var(--spacing-xl);max-width:1400px}.admin-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-xl)}.admin-header h1{font-size:1.5rem;font-weight:600;color:var(--color-gray-900)}.admin-header .header-actions{display:flex;align-items:center;gap:var(--spacing-sm)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.stat-card{background:var(--color-white);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);display:flex;align-items:center;gap:var(--spacing-md)}.stat-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center}.stat-icon 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