:root{--toastify-color-light:#fff;--toastify-color-dark:#121212;--toastify-color-info:#3498db;--toastify-color-success:#07bc0c;--toastify-color-warning:#f1c40f;--toastify-color-error:#e74c3c;--toastify-color-transparent:hsla(0,0%,100%,.7);--toastify-icon-color-info:var(--toastify-color-info);--toastify-icon-color-success:var(--toastify-color-success);--toastify-icon-color-warning:var(--toastify-color-warning);--toastify-icon-color-error:var(--toastify-color-error);--toastify-toast-width:320px;--toastify-toast-background:#fff;--toastify-toast-min-height:64px;--toastify-toast-max-height:800px;--toastify-font-family:sans-serif;--toastify-z-index:9999;--toastify-text-color-light:#757575;--toastify-text-color-dark:#fff;--toastify-text-color-info:#fff;--toastify-text-color-success:#fff;--toastify-text-color-warning:#fff;--toastify-text-color-error:#fff;--toastify-spinner-color:#616161;--toastify-spinner-color-empty-area:#e0e0e0;--toastify-color-progress-light:linear-gradient(90deg,#4cd964,#5ac8fa,#007aff,#34aadc,#5856d6,#ff2d55);--toastify-color-progress-dark:#bb86fc;--toastify-color-progress-info:var(--toastify-color-info);--toastify-color-progress-success:var(--toastify-color-success);--toastify-color-progress-warning:var(--toastify-color-warning);--toastify-color-progress-error:var(--toastify-color-error)}.Toastify__toast-container{z-index:var(--toastify-z-index);-webkit-transform:translateZ(var(--toastify-z-index));position:fixed;padding:4px;width:var(--toastify-toast-width);box-sizing:border-box;color:#fff}.Toastify__toast-container--top-left{top:1em;left:1em}.Toastify__toast-container--top-center{top:1em;left:50%;transform:translate(-50%)}.Toastify__toast-container--top-right{top:1em;right:1em}.Toastify__toast-container--bottom-left{bottom:1em;left:1em}.Toastify__toast-container--bottom-center{bottom:1em;left:50%;transform:translate(-50%)}.Toastify__toast-container--bottom-right{bottom:1em;right:1em}@media only screen and (max-width:480px){.Toastify__toast-container{width:100vw;padding:0;left:0;margin:0}.Toastify__toast-container--top-center,.Toastify__toast-container--top-left,.Toastify__toast-container--top-right{top:0;transform:translate(0)}.Toastify__toast-container--bottom-center,.Toastify__toast-container--bottom-left,.Toastify__toast-container--bottom-right{bottom:0;transform:translate(0)}.Toastify__toast-container--rtl{right:0;left:auto}}.Toastify__toast{position:relative;min-height:var(--toastify-toast-min-height);box-sizing:border-box;margin-bottom:1rem;padding:8px;border-radius:4px;box-shadow:0 1px 10px #0000001a,0 2px 15px #0000000d;display:-ms-flexbox;display:flex;-ms-flex-pack:justify;justify-content:space-between;max-height:var(--toastify-toast-max-height);overflow:hidden;font-family:var(--toastify-font-family);cursor:default;direction:ltr;z-index:0}.Toastify__toast--rtl{direction:rtl}.Toastify__toast--close-on-click{cursor:pointer}.Toastify__toast-body{margin:auto 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(max-width:480px){.Toastify__toast{margin-bottom:0;border-radius:0}}.Toastify__toast-theme--dark{background:var(--toastify-color-dark);color:var(--toastify-text-color-dark)}.Toastify__toast-theme--colored.Toastify__toast--default,.Toastify__toast-theme--light{background:var(--toastify-color-light);color:var(--toastify-text-color-light)}.Toastify__toast-theme--colored.Toastify__toast--info{color:var(--toastify-text-color-info);background:var(--toastify-color-info)}.Toastify__toast-theme--colored.Toastify__toast--success{color:var(--toastify-text-color-success);background:var(--toastify-color-success)}.Toastify__toast-theme--colored.Toastify__toast--warning{color:var(--toastify-text-color-warning);background:var(--toastify-color-warning)}.Toastify__toast-theme--colored.Toastify__toast--error{color:var(--toastify-text-color-error);background:var(--toastify-color-error)}.Toastify__progress-bar-theme--light{background:var(--toastify-color-progress-light)}.Toastify__progress-bar-theme--dark{background:var(--toastify-color-progress-dark)}.Toastify__progress-bar--info{background:var(--toastify-color-progress-info)}.Toastify__progress-bar--success{background:var(--toastify-color-progress-success)}.Toastify__progress-bar--warning{background:var(--toastify-color-progress-warning)}.Toastify__progress-bar--error{background:var(--toastify-color-progress-error)}.Toastify__progress-bar-theme--colored.Toastify__progress-bar--error,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--info,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--success,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--warning{background:var(--toastify-color-transparent)}.Toastify__close-button{color:#fff;background:transparent;outline:none;border:none;padding:0;cursor:pointer;opacity:.7;transition:.3s ease;-ms-flex-item-align:start;align-self:flex-start}.Toastify__close-button--light{color:#000;opacity:.3}.Toastify__close-button>svg{fill:currentColor;height:16px;width:14px}.Toastify__close-button:focus,.Toastify__close-button:hover{opacity:1}@keyframes Toastify__trackProgress{0%{transform:scaleX(1)}to{transform:scaleX(0)}}.Toastify__progress-bar{position:absolute;bottom:0;left:0;width:100%;height:5px;z-index:var(--toastify-z-index);opacity:.7;transform-origin:left}.Toastify__progress-bar--animated{animation:Toastify__trackProgress linear 1 forwards}.Toastify__progress-bar--controlled{transition:transform .2s}.Toastify__progress-bar--rtl{right:0;left:auto;transform-origin:right}.Toastify__spinner{width:20px;height:20px;box-sizing:border-box;border:2px solid;border-radius:100%;border-color:var(--toastify-spinner-color-empty-area);border-right-color:var(--toastify-spinner-color);animation:Toastify__spin .65s linear infinite}@keyframes Toastify__bounceInRight{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(3000px,0,0)}60%{opacity:1;transform:translate3d(-25px,0,0)}75%{transform:translate3d(10px,0,0)}90%{transform:translate3d(-5px,0,0)}to{transform:none}}@keyframes Toastify__bounceOutRight{20%{opacity:1;transform:translate3d(-20px,0,0)}to{opacity:0;transform:translate3d(2000px,0,0)}}@keyframes Toastify__bounceInLeft{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(-3000px,0,0)}60%{opacity:1;transform:translate3d(25px,0,0)}75%{transform:translate3d(-10px,0,0)}90%{transform:translate3d(5px,0,0)}to{transform:none}}@keyframes Toastify__bounceOutLeft{20%{opacity:1;transform:translate3d(20px,0,0)}to{opacity:0;transform:translate3d(-2000px,0,0)}}@keyframes Toastify__bounceInUp{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(0,3000px,0)}60%{opacity:1;transform:translate3d(0,-20px,0)}75%{transform:translate3d(0,10px,0)}90%{transform:translate3d(0,-5px,0)}to{transform:translateZ(0)}}@keyframes Toastify__bounceOutUp{20%{transform:translate3d(0,-10px,0)}40%,45%{opacity:1;transform:translate3d(0,20px,0)}to{opacity:0;transform:translate3d(0,-2000px,0)}}@keyframes Toastify__bounceInDown{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(0,-3000px,0)}60%{opacity:1;transform:translate3d(0,25px,0)}75%{transform:translate3d(0,-10px,0)}90%{transform:translate3d(0,5px,0)}to{transform:none}}@keyframes Toastify__bounceOutDown{20%{transform:translate3d(0,10px,0)}40%,45%{opacity:1;transform:translate3d(0,-20px,0)}to{opacity:0;transform:translate3d(0,2000px,0)}}.Toastify__bounce-enter--bottom-left,.Toastify__bounce-enter--top-left{animation-name:Toastify__bounceInLeft}.Toastify__bounce-enter--bottom-right,.Toastify__bounce-enter--top-right{animation-name:Toastify__bounceInRight}.Toastify__bounce-enter--top-center{animation-name:Toastify__bounceInDown}.Toastify__bounce-enter--bottom-center{animation-name:Toastify__bounceInUp}.Toastify__bounce-exit--bottom-left,.Toastify__bounce-exit--top-left{animation-name:Toastify__bounceOutLeft}.Toastify__bounce-exit--bottom-right,.Toastify__bounce-exit--top-right{animation-name:Toastify__bounceOutRight}.Toastify__bounce-exit--top-center{animation-name:Toastify__bounceOutUp}.Toastify__bounce-exit--bottom-center{animation-name:Toastify__bounceOutDown}@keyframes Toastify__zoomIn{0%{opacity:0;transform:scale3d(.3,.3,.3)}50%{opacity:1}}@keyframes Toastify__zoomOut{0%{opacity:1}50%{opacity:0;transform:scale3d(.3,.3,.3)}to{opacity:0}}.Toastify__zoom-enter{animation-name:Toastify__zoomIn}.Toastify__zoom-exit{animation-name:Toastify__zoomOut}@keyframes Toastify__flipIn{0%{transform:perspective(400px) rotateX(90deg);animation-timing-function:ease-in;opacity:0}40%{transform:perspective(400px) rotateX(-20deg);animation-timing-function:ease-in}60%{transform:perspective(400px) rotateX(10deg);opacity:1}80%{transform:perspective(400px) rotateX(-5deg)}to{transform:perspective(400px)}}@keyframes Toastify__flipOut{0%{transform:perspective(400px)}30%{transform:perspective(400px) rotateX(-20deg);opacity:1}to{transform:perspective(400px) rotateX(90deg);opacity:0}}.Toastify__flip-enter{animation-name:Toastify__flipIn}.Toastify__flip-exit{animation-name:Toastify__flipOut}@keyframes Toastify__slideInRight{0%{transform:translate3d(110%,0,0);visibility:visible}to{transform:translateZ(0)}}@keyframes Toastify__slideInLeft{0%{transform:translate3d(-110%,0,0);visibility:visible}to{transform:translateZ(0)}}@keyframes Toastify__slideInUp{0%{transform:translate3d(0,110%,0);visibility:visible}to{transform:translateZ(0)}}@keyframes Toastify__slideInDown{0%{transform:translate3d(0,-110%,0);visibility:visible}to{transform:translateZ(0)}}@keyframes Toastify__slideOutRight{0%{transform:translateZ(0)}to{visibility:hidden;transform:translate3d(110%,0,0)}}@keyframes Toastify__slideOutLeft{0%{transform:translateZ(0)}to{visibility:hidden;transform:translate3d(-110%,0,0)}}@keyframes Toastify__slideOutDown{0%{transform:translateZ(0)}to{visibility:hidden;transform:translate3d(0,500px,0)}}@keyframes Toastify__slideOutUp{0%{transform:translateZ(0)}to{visibility:hidden;transform:translate3d(0,-500px,0)}}.Toastify__slide-enter--bottom-left,.Toastify__slide-enter--top-left{animation-name:Toastify__slideInLeft}.Toastify__slide-enter--bottom-right,.Toastify__slide-enter--top-right{animation-name:Toastify__slideInRight}.Toastify__slide-enter--top-center{animation-name:Toastify__slideInDown}.Toastify__slide-enter--bottom-center{animation-name:Toastify__slideInUp}.Toastify__slide-exit--bottom-left,.Toastify__slide-exit--top-left{animation-name:Toastify__slideOutLeft}.Toastify__slide-exit--bottom-right,.Toastify__slide-exit--top-right{animation-name:Toastify__slideOutRight}.Toastify__slide-exit--top-center{animation-name:Toastify__slideOutUp}.Toastify__slide-exit--bottom-center{animation-name:Toastify__slideOutDown}@keyframes Toastify__spin{0%{transform:rotate(0)}to{transform:rotate(1turn)}}:root{--bg-primary: #0f0f1a;--bg-secondary: #1a1a2e;--bg-tertiary: #16213e;--bg-glass: rgba(255, 255, 255, .05);--bg-glass-hover: rgba(255, 255, 255, .08);--bg-glass-active: rgba(255, 255, 255, .12);--accent-primary: #7c3aed;--accent-primary-hover: #8b5cf6;--accent-secondary: #3b82f6;--accent-secondary-hover: #60a5fa;--accent-gradient: linear-gradient(135deg, #7c3aed 0%, #3b82f6 100%);--text-primary: #ffffff;--text-secondary: #94a3b8;--text-muted: #64748b;--success: #10b981;--success-hover: #34d399;--warning: #f59e0b;--warning-hover: #fbbf24;--danger: #ef4444;--danger-hover: #f87171;--info: #06b6d4;--border-color: rgba(255, 255, 255, .1);--border-color-hover: rgba(255, 255, 255, .2);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .4);--shadow-glow: 0 0 20px rgba(124, 58, 237, .3);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease;--sidebar-width: 260px;--sidebar-collapsed-width: 70px;--header-height: 60px}*,*:before,*:after{box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;padding:0;font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.6;color:var(--text-primary);background:var(--bg-primary);min-height:100vh}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse at 20% 20%,rgba(124,58,237,.15) 0%,transparent 50%),radial-gradient(ellipse at 80% 80%,rgba(59,130,246,.1) 0%,transparent 50%),radial-gradient(ellipse at 50% 50%,rgba(16,185,129,.05) 0%,transparent 70%);pointer-events:none;z-index:-1}h1,h2,h3,h4,h5,h6{margin:0 0 var(--spacing-md) 0;font-weight:var(--font-weight-semibold);line-height:1.3;color:var(--text-primary)}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}h4{font-size:var(--font-size-lg)}p{margin:0 0 var(--spacing-md) 0;color:var(--text-secondary)}a{color:var(--accent-secondary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--accent-secondary-hover)}.app-layout{display:flex;min-height:100vh}.app-main{flex:1;margin-left:var(--sidebar-width);padding:var(--spacing-xl);transition:margin-left var(--transition-slow)}.app-main.sidebar-collapsed{margin-left:var(--sidebar-collapsed-width)}.app-main.no-sidebar{margin-left:0}.sidebar{position:fixed;top:0;left:0;width:var(--sidebar-width);height:100vh;background:var(--bg-secondary);border-right:1px solid var(--border-color);display:flex;flex-direction:column;z-index:1000;transition:width var(--transition-slow)}.sidebar.collapsed{width:var(--sidebar-collapsed-width)}.sidebar-header{padding:var(--spacing-lg);border-bottom:1px solid var(--border-color);display:flex;align-items:center;gap:var(--spacing-md)}.sidebar-logo{width:40px;height:40px;background:var(--accent-gradient);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-weight:var(--font-weight-bold);font-size:var(--font-size-xl);color:#fff;flex-shrink:0}.sidebar-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--text-primary);white-space:nowrap;overflow:hidden}.sidebar.collapsed 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var(--border-color)}.sidebar-user{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-sm);border-radius:var(--radius-md);cursor:pointer;transition:background var(--transition-fast)}.sidebar-user:hover{background:var(--bg-glass-hover)}.sidebar-user-avatar{width:36px;height:36px;border-radius:var(--radius-full);background:var(--accent-gradient);display:flex;align-items:center;justify-content:center;font-weight:var(--font-weight-semibold);font-size:var(--font-size-sm);color:#fff;flex-shrink:0}.sidebar-user-info{overflow:hidden}.sidebar-user-name{font-weight:var(--font-weight-medium);color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar.collapsed .sidebar-user-info{display:none}.glass-card{background:var(--bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid 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var(--transition-base)}.stat-card:hover{background:var(--bg-glass-hover);transform:translateY(-2px)}.stat-icon{width:48px;height:48px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-xl)}.stat-icon.purple{background:#7c3aed33;color:var(--accent-primary)}.stat-icon.blue{background:#3b82f633;color:var(--accent-secondary)}.stat-icon.green{background:#10b98133;color:var(--success)}.stat-content{flex:1}.stat-label{font-size:var(--font-size-sm);color:var(--text-secondary);margin-bottom:var(--spacing-xs)}.stat-value{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--text-primary)}.stat-change{font-size:var(--font-size-sm);color:var(--success);margin-top:var(--spacing-xs)}.invoice-grid{display:flex;flex-direction:column;gap:var(--spacing-md)}.invoice-card{background:var(--bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:var(--spacing-lg);transition:all var(--transition-base);cursor:pointer}.invoice-card:hover{background:var(--bg-glass-hover);border-color:var(--border-color-hover);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.invoice-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--spacing-md)}.invoice-card-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--text-primary);margin:0}.invoice-card-meta{font-size:var(--font-size-sm);color:var(--text-secondary);margin-top:var(--spacing-xs)}.invoice-card-amount{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--text-primary)}.invoice-card-description{color:var(--text-secondary);font-size:var(--font-size-sm);margin-bottom:var(--spacing-md);line-height:1.5}.invoice-card-actions{display:flex;gap:var(--spacing-sm);justify-content:flex-end}.invoice-hero{position:relative;height:200px;border-radius:var(--radius-xl);overflow:hidden;margin-bottom:var(--spacing-xl)}.invoice-hero img{width:100%;height:100%;object-fit:cover}.invoice-hero-overlay{position:absolute;bottom:0;left:0;right:0;padding:var(--spacing-lg);background:linear-gradient(to top,rgba(0,0,0,.8),transparent)}.invoice-hero-title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:#fff;margin:0}.invoice-hero-meta{color:#fffc;font-size:var(--font-size-sm)}.invoice-info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.invoice-info-item{background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-md)}.invoice-info-label{font-size:var(--font-size-xs);color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.invoice-info-value{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--text-primary);margin-top:var(--spacing-xs)}.tabs{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-lg);border-bottom:1px solid var(--border-color);padding-bottom:var(--spacing-sm)}.tab-button{padding:var(--spacing-sm) var(--spacing-lg);background:transparent;border:none;color:var(--text-secondary);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);cursor:pointer;border-radius:var(--radius-md);transition:all var(--transition-fast)}.tab-button:hover{background:var(--bg-glass-hover);color:var(--text-primary)}.tab-button.active{background:var(--accent-gradient);color:#fff}.ui.button{font-family:var(--font-family);font-weight:var(--font-weight-medium);border-radius:var(--radius-md)!important;transition:all var(--transition-fast)}.btn-primary{background:var(--accent-gradient)!important;color:#fff!important;border:none!important}.btn-primary:hover{opacity:.9;transform:translateY(-1px);box-shadow:var(--shadow-glow)}.btn-secondary{background:var(--bg-glass)!important;color:var(--text-primary)!important;border:1px solid var(--border-color)!important}.btn-secondary:hover{background:var(--bg-glass-hover)!important;border-color:var(--border-color-hover)!important}.btn-danger{background:#ef444433!important;color:var(--danger)!important;border:1px solid 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.menu>.item{color:var(--text-secondary)!important;border-top:1px solid var(--border-color)!important}.ui.dropdown .menu>.item:hover{background:var(--bg-glass-hover)!important;color:var(--text-primary)!important}.ui.dropdown .menu>.item:first-child{border-top:none!important}.ui.message{background:var(--bg-glass)!important;border:1px solid var(--border-color)!important;border-radius:var(--radius-lg)!important;color:var(--text-primary)!important}.ui.positive.message,.ui.success.message{background:#10b9811a!important;border-color:var(--success)!important}.ui.negative.message,.ui.error.message{background:#ef44441a!important;border-color:var(--danger)!important}.ui.dimmer{background:#0f0f1ae6!important}.ui.loader{color:var(--accent-primary)!important}.ui.loader:after{border-color:var(--accent-primary) transparent 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a{color:var(--text-secondary);font-size:var(--font-size-sm)}.login-footer a:hover{color:var(--accent-primary)}.participant-grid{display:flex;flex-wrap:wrap;gap:var(--spacing-md)}.participant-card{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-full);transition:all var(--transition-fast)}.participant-card:hover{background:var(--bg-glass-hover)}.participant-avatar{width:32px;height:32px;border-radius:var(--radius-full);background:var(--accent-gradient);display:flex;align-items:center;justify-content:center;font-weight:var(--font-weight-semibold);font-size:var(--font-size-sm);color:#fff}.participant-name{font-size:var(--font-size-sm);color:var(--text-primary)}.expense-accordion{background:var(--bg-glass);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden}.expense-accordion-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-md) var(--spacing-lg);cursor:pointer;transition:background var(--transition-fast)}.expense-accordion-header:hover{background:var(--bg-glass-hover)}.expense-accordion-title{font-weight:var(--font-weight-medium);color:var(--text-primary)}.expense-accordion-amount{font-weight:var(--font-weight-semibold);color:var(--accent-primary)}.expense-accordion-content{padding:var(--spacing-md) var(--spacing-lg);border-top:1px solid var(--border-color);background:var(--bg-secondary)}.empty-state{text-align:center;padding:var(--spacing-2xl);color:var(--text-secondary)}.empty-state-icon{font-size:48px;margin-bottom:var(--spacing-lg);opacity:.5}.empty-state-title{font-size:var(--font-size-lg);color:var(--text-primary);margin-bottom:var(--spacing-sm)}.empty-state-description{font-size:var(--font-size-sm);color:var(--text-muted)}@media (max-width: 768px){.sidebar{transform:translate(-100%);transition:transform var(--transition-slow)}.sidebar.mobile-open{transform:translate(0)}.app-main{margin-left:0!important;padding:var(--spacing-md);padding-top:calc(var(--header-height) + var(--spacing-md))}.mobile-header{display:flex!important;align-items:center;justify-content:space-between;padding:var(--spacing-md);background:var(--bg-secondary);border-bottom:1px solid var(--border-color);position:fixed;top:0;left:0;right:0;z-index:999;height:var(--header-height)}.mobile-menu-button{background:transparent;border:none;color:var(--text-primary);font-size:var(--font-size-xl);cursor:pointer;padding:var(--spacing-sm)}.stats-grid{grid-template-columns:1fr}.invoice-card-header{flex-direction:column;gap:var(--spacing-sm)}.invoice-card-actions{justify-content:flex-start}.invoice-hero{height:150px}.invoice-info-grid{grid-template-columns:repeat(2,1fr)}.tabs{overflow-x:auto;-webkit-overflow-scrolling:touch}.login-card{padding:var(--spacing-lg)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.animate-fade-in{animation:fadeIn var(--transition-slow) ease}.animate-slide-in{animation:slideIn var(--transition-slow) ease}.page-content{animation:fadeIn var(--transition-base) ease}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.ui.inverted.top.fixed.menu{display:none!important}.payment-settlement{width:100%}.payment-transactions{display:flex;flex-direction:column;gap:var(--spacing-md)}.payment-transaction-card{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md);background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--border-radius);transition:all .2s ease}.payment-transaction-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.transaction-from,.transaction-to{display:flex;align-items:center;gap:var(--spacing-sm);flex:1}.transaction-to{justify-content:flex-end}.transaction-arrow{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-xs);flex:0 0 auto;padding:0 var(--spacing-lg);color:var(--primary-color)}.transaction-amount{font-size:1.1em;font-weight:700;color:var(--primary-color);white-space:nowrap}@media (max-width: 768px){.payment-transaction-card{flex-direction:column;gap:var(--spacing-sm);text-align:center}.transaction-from,.transaction-to{justify-content:center}.transaction-arrow{padding:var(--spacing-sm) 0;transform:rotate(90deg)}}:root{--green: #21ba45;--red: #db2828;--gray: #767676}