.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--color-background) 0%,var(--color-background-secondary) 100%);padding:var(--spacing-md);position:relative}.theme-toggle{position:absolute;top:var(--spacing-md);right:var(--spacing-md)}.login-container{width:100%;max-width:420px;background:var(--color-surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);padding:var(--spacing-2xl)}.login-header{text-align:center;margin-bottom:var(--spacing-xl)}.login-logo{width:80px;height:80px;margin:0 auto var(--spacing-md);background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;color:var(--color-text-inverse)}.login-header h1{margin-bottom:var(--spacing-xs);color:var(--color-text)}.login-subtitle{color:var(--color-text-secondary);font-size:.9375rem}.login-form{display:flex;flex-direction:column;gap:var(--spacing-md)}.form-group{display:flex;flex-direction:column;gap:var(--spacing-xs)}.form-group label{font-weight:500;font-size:.875rem;color:var(--color-text)}.password-input{position:relative}.password-input input{padding-right:48px}.password-toggle{position:absolute;right:var(--spacing-sm);top:50%;transform:translateY(-50%);color:var(--color-text-tertiary);padding:var(--spacing-xs);border-radius:var(--radius-sm)}.password-toggle:hover{color:var(--color-text-secondary);background:var(--color-background-secondary)}.btn-full{width:100%;padding:var(--spacing-md);font-size:1rem;margin-top:var(--spacing-sm)}.login-footer{margin-top:var(--spacing-lg);text-align:center;color:var(--color-text-secondary);font-size:.875rem}.login-footer p{margin-top:var(--spacing-sm)}.link-button{color:var(--color-primary);font-weight:500;background:none;border:none;cursor:pointer;font-size:inherit}.link-button:hover{text-decoration:underline}.alert{padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-md);font-size:.875rem}.alert-error{background:#ef44441a;color:var(--color-error);border:1px solid rgba(239,68,68,.2)}.alert-success{background:#10b9811a;color:var(--color-success);border:1px solid rgba(16,185,129,.2)}.alert-info{background:#3b82f61a;color:var(--color-primary);border:1px solid rgba(59,130,246,.2)}.form-hint{font-size:.75rem;color:var(--color-text-tertiary);margin-top:var(--spacing-xs)}.email-input-wrapper{position:relative}.help-button{display:inline-flex;align-items:center;gap:var(--spacing-xs);margin-top:var(--spacing-sm)}.help-panel{margin-top:var(--spacing-lg);padding:var(--spacing-md);background:var(--color-background-secondary);border-radius:var(--radius-md);font-size:.875rem}.help-panel h3{font-size:.9375rem;font-weight:600;margin-bottom:var(--spacing-sm);color:var(--color-text)}.help-panel ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:var(--spacing-sm)}.help-panel li{color:var(--color-text-secondary);line-height:1.5}.help-panel li strong{color:var(--color-text);font-weight:500}@media (max-width: 480px){.login-container{padding:var(--spacing-lg)}.login-logo{width:64px;height:64px}.login-logo svg{width:32px;height:32px}}.message-item{display:flex;align-items:flex-start;gap:var(--spacing-sm);padding:var(--spacing-md);border-bottom:1px solid var(--color-border-light);cursor:pointer;transition:background var(--transition-fast);position:relative}.message-item:hover{background:var(--color-background-secondary)}.message-item.selected{background:var(--color-background-tertiary)}.message-item.unread{background:var(--color-background)}.message-item.unread .message-sender,.message-item.unread .message-subject{font-weight:600}.message-item.unread:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--color-primary)}.star-button{flex-shrink:0;padding:var(--spacing-xs);border-radius:var(--radius-sm);color:var(--color-text-tertiary);transition:color 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640px){.user-email{display:none}.search-form{max-width:none}}.layout{display:flex;min-height:100vh}.layout-main{flex:1;display:flex;flex-direction:column;min-width:0}.layout-content{flex:1;overflow:auto;background:var(--color-background-secondary)}@media (max-width: 768px){.layout{flex-direction:column}.sidebar{position:fixed;left:-280px;top:0;bottom:0;z-index:100;transition:left var(--transition-normal)}.sidebar.open{left:0}.sidebar-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:99;opacity:0;pointer-events:none;transition:opacity var(--transition-normal)}.sidebar-overlay.visible{opacity:1;pointer-events:auto}}:root{--color-primary: #095FB5;--color-primary-light: #3D8DD9;--color-primary-dark: #074A91;--color-background: #FFFFFF;--color-background-secondary: #F5F7FA;--color-background-tertiary: #E8EDF3;--color-surface: #FFFFFF;--color-surface-elevated: #FFFFFF;--color-text: #1A1A1A;--color-text-secondary: #666666;--color-text-tertiary: 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#404040}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);background-color:var(--color-background);color:var(--color-text);line-height:1.5;min-height:100vh}#root{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2}h1{font-size:2.25rem}h2{font-size:1.875rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.125rem}h6{font-size:1rem}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);font-weight:500;transition:all var(--transition-fast)}.btn-primary{background-color:var(--color-primary);color:var(--color-text-inverse)}.btn-primary:hover{background-color:var(--color-primary-dark)}.btn-secondary{background-color:var(--color-background-secondary);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background-color:var(--color-background-tertiary)}.btn-ghost{color:var(--color-text-secondary)}.btn-ghost:hover{background-color:var(--color-background-secondary);color:var(--color-text)}.btn-icon{padding:var(--spacing-sm);border-radius:var(--radius-md)}input,textarea,select{font-family:inherit;font-size:inherit;padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface);color:var(--color-text);width:100%;transition:border-color var(--transition-fast)}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-primary)}input::placeholder,textarea::placeholder{color:var(--color-text-tertiary)}.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}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;gap:var(--spacing-md)}.loading-spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-background-secondary)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-tertiary)}