:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: #16161f;--bg-card-hover: #1c1c27;--bg-elevated: #1e1e2a;--border-subtle: rgba(255, 255, 255, .06);--border-default: rgba(255, 255, 255, .1);--border-strong: rgba(255, 255, 255, .15);--text-primary: #f1f1f3;--text-secondary: #a1a1aa;--text-muted: #71717a;--text-faint: #52525b;--accent-purple: #a855f7;--accent-purple-glow: rgba(168, 85, 247, .25);--accent-blue: #3b82f6;--accent-blue-glow: rgba(59, 130, 246, .25);--accent-cyan: #06b6d4;--accent-cyan-glow: rgba(6, 182, 212, .25);--success: #10b981;--success-soft: rgba(16, 185, 129, .15);--success-glow: rgba(16, 185, 129, .4);--danger: #ef4444;--danger-soft: rgba(239, 68, 68, .15);--danger-glow: rgba(239, 68, 68, .4);--warning: #f59e0b;--warning-soft: rgba(245, 158, 11, .15);--info: #3b82f6;--info-soft: rgba(59, 130, 246, .15);--gradient-purple: linear-gradient(135deg, #a855f7 0%, #6366f1 100%);--gradient-blue: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);--gradient-green: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);--gradient-red: linear-gradient(135deg, #ef4444 0%, #f97316 100%);--gradient-card: linear-gradient( 145deg, rgba(255, 255, 255, .02) 0%, rgba(255, 255, 255, 0) 100% );--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--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: 1.25rem;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow-purple: 0 0 40px rgba(168, 85, 247, .15);--shadow-glow-green: 0 0 40px rgba(16, 185, 129, .15);--shadow-glow-red: 0 0 40px rgba(239, 68, 68, .15);--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease}*,*: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(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh}body:before{content:"";position:fixed;inset:0;background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);background-size:64px 64px;pointer-events:none;z-index:-1}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.3;color:var(--text-primary)}h1{font-size:1.875rem}h2{font-size:1.5rem}h3{font-size:1.125rem}a{color:var(--accent-purple);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--accent-blue)}.page-container{max-width:1400px;margin:0 auto;padding:var(--spacing-lg)}@media(max-width:768px){.page-container{padding:var(--spacing-md)}}.header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-lg) var(--spacing-xl);background:var(--bg-card);background-image:var(--gradient-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);margin-bottom:var(--spacing-lg)}.header h1{background:var(--gradient-purple);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:700;letter-spacing:-.02em}.header-right{display:flex;align-items:center;gap:var(--spacing-lg)}.username{font-weight:500;color:var(--text-secondary)}.logout-btn{padding:var(--spacing-sm) var(--spacing-lg);background:transparent;color:var(--text-secondary);border:1px solid var(--border-default);border-radius:var(--radius-md);font-weight:500;font-family:inherit;cursor:pointer;transition:all var(--transition-fast)}.logout-btn:hover{background:var(--danger-soft);color:var(--danger);border-color:var(--danger)}@media(max-width:640px){.header{flex-direction:column;gap:var(--spacing-md);text-align:center}.header-right{flex-direction:column;gap:var(--spacing-sm)}}.nav{display:flex;gap:var(--spacing-xs);padding:var(--spacing-xs);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);margin-bottom:var(--spacing-xl)}.nav-link{padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-lg);font-weight:500;font-size:.9375rem;color:var(--text-muted);transition:all var(--transition-fast)}.nav-link:hover{background:var(--bg-elevated);color:var(--text-primary)}.nav-link.active{background:var(--gradient-purple);color:#fff;box-shadow:var(--shadow-glow-purple)}@media(max-width:640px){.nav{flex-direction:column}.nav-link{text-align:center}}.card{background:var(--bg-card);background-image:var(--gradient-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:var(--spacing-xl);margin-bottom:var(--spacing-lg);transition:all var(--transition-base)}.card:hover{border-color:var(--border-default)}.card h3{margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--border-subtle);color:var(--text-primary)}.content{background:var(--bg-card);background-image:var(--gradient-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:var(--spacing-xl)}.content-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-xl);padding-bottom:var(--spacing-lg);border-bottom:1px solid var(--border-subtle)}@media(max-width:640px){.content-header{flex-direction:column;gap:var(--spacing-md)}}.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.summary-card{background:var(--bg-card);background-image:var(--gradient-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:var(--spacing-xl);position:relative;overflow:hidden;transition:all var(--transition-base)}.summary-card:hover{transform:translateY(-2px);border-color:var(--border-default)}.summary-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px}.summary-card:after{content:"";position:absolute;top:0;left:0;right:0;height:80px;pointer-events:none}.summary-card.income:before{background:var(--gradient-green)}.summary-card.income:after{background:linear-gradient(180deg,rgba(16,185,129,.1) 0%,transparent 100%)}.summary-card.income:hover{box-shadow:var(--shadow-glow-green)}.summary-card.expense:before{background:var(--gradient-red)}.summary-card.expense:after{background:linear-gradient(180deg,rgba(239,68,68,.1) 0%,transparent 100%)}.summary-card.expense:hover{box-shadow:var(--shadow-glow-red)}.summary-card.savings:before{background:var(--gradient-purple)}.summary-card.savings:after{background:linear-gradient(180deg,rgba(168,85,247,.1) 0%,transparent 100%)}.summary-card.savings:hover{box-shadow:var(--shadow-glow-purple)}.summary-card h3{font-size:.8125rem;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:var(--spacing-sm);border:none;padding:0}.summary-card .amount{font-size:2.25rem;font-weight:700;font-family:var(--font-mono);letter-spacing:-.02em;margin-bottom:var(--spacing-xs)}.summary-card.income .amount{color:var(--success)}.summary-card.expense .amount{color:var(--danger)}.summary-card.savings .amount{color:var(--accent-purple)}.summary-card small{color:var(--text-faint);font-size:.875rem}.charts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:var(--spacing-lg)}.chart-card{background:var(--bg-card);background-image:var(--gradient-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:var(--spacing-xl);transition:all var(--transition-base)}.chart-card:hover{border-color:var(--border-default)}.chart-card h3{margin-bottom:var(--spacing-lg);font-size:1rem;color:var(--text-secondary)}@media(max-width:768px){.charts-grid{grid-template-columns:1fr}}.recharts-cartesian-grid-horizontal line,.recharts-cartesian-grid-vertical line{stroke:var(--border-subtle)}.recharts-text{fill:var(--text-muted);font-size:.75rem}.recharts-tooltip-wrapper .recharts-default-tooltip{background:var(--bg-elevated)!important;border:1px solid var(--border-default)!important;border-radius:var(--radius-md)!important;box-shadow:var(--shadow-lg)!important}.recharts-tooltip-item{color:var(--text-primary)!important}.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(--text-secondary)}.form-control{padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-secondary);border:1px solid var(--border-default);border-radius:var(--radius-md);font-size:1rem;font-family:inherit;color:var(--text-primary);transition:all var(--transition-fast)}.form-control:focus{outline:none;border-color:var(--accent-purple);box-shadow:0 0 0 3px var(--accent-purple-glow);background:var(--bg-elevated)}.form-control::placeholder{color:var(--text-faint)}.form-control option{background:var(--bg-elevated);color:var(--text-primary)}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-md)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);font-size:.9375rem;font-weight:500;font-family:inherit;border-radius:var(--radius-md);border:none;cursor:pointer;transition:all var(--transition-fast);gap:var(--spacing-sm)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--gradient-purple);color:#fff}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:var(--shadow-glow-purple)}.btn-success{background:var(--gradient-green);color:#fff}.btn-success:hover:not(:disabled){transform:translateY(-1px);box-shadow:var(--shadow-glow-green)}.btn-warning{background:var(--warning);color:var(--bg-primary)}.btn-warning:hover:not(:disabled){opacity:.9}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){box-shadow:var(--shadow-glow-red)}.btn-sm{padding:var(--spacing-xs) var(--spacing-sm);font-size:.8125rem}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border-default)}.btn-ghost:hover:not(:disabled){background:var(--bg-elevated);color:var(--text-primary);border-color:var(--border-strong)}.table-container{overflow-x:auto}.table{width:100%;border-collapse:collapse}.table th{text-align:left;padding:var(--spacing-md) var(--spacing-lg);font-weight:600;font-size:.6875rem;text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);background:var(--bg-secondary);border-bottom:1px solid var(--border-subtle)}.table th:first-child{border-radius:var(--radius-md) 0 0 0}.table th:last-child{border-radius:0 var(--radius-md) 0 0}.table td{padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--border-subtle);color:var(--text-secondary);font-size:.9375rem}.table tr{transition:background var(--transition-fast)}.table tbody tr:hover{background:var(--bg-secondary)}.table tr:last-child td{border-bottom:none}.action-buttons{display:flex;gap:var(--spacing-sm)}.badge{display:inline-flex;align-items:center;padding:var(--spacing-xs) var(--spacing-sm);font-size:.6875rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;border-radius:var(--radius-full)}.badge-income{background:var(--success-soft);color:var(--success)}.badge-expense{background:var(--danger-soft);color:var(--danger)}.badge-both{background:var(--info-soft);color:var(--info)}.alert{padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-md);margin-bottom:var(--spacing-lg);font-weight:500;font-size:.9375rem}.alert-error{background:var(--danger-soft);color:var(--danger);border:1px solid rgba(239,68,68,.3)}.alert-success{background:var(--success-soft);color:var(--success);border:1px solid rgba(16,185,129,.3)}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--spacing-lg);position:relative}.auth-container:before{content:"";position:absolute;top:10%;left:20%;width:400px;height:400px;background:radial-gradient(circle,rgba(168,85,247,.15) 0%,transparent 70%);filter:blur(40px);pointer-events:none}.auth-container:after{content:"";position:absolute;bottom:20%;right:15%;width:350px;height:350px;background:radial-gradient(circle,rgba(6,182,212,.15) 0%,transparent 70%);filter:blur(40px);pointer-events:none}.auth-card{width:100%;max-width:420px;background:var(--bg-card);background-image:var(--gradient-card);border:1px solid var(--border-subtle);border-radius:var(--radius-2xl);padding:var(--spacing-2xl);box-shadow:var(--shadow-lg);position:relative;z-index:1}.auth-card h2{text-align:center;margin-bottom:var(--spacing-xl);font-size:1.75rem;background:var(--gradient-purple);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.auth-card .form-group{margin-bottom:var(--spacing-lg)}.auth-card .btn{width:100%;padding:var(--spacing-md);font-size:1rem;margin-top:var(--spacing-md)}.auth-text{text-align:center;margin-top:var(--spacing-xl);color:var(--text-muted)}.auth-text a{font-weight:600}.filter-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-md);align-items:end}.filter-btn{padding:var(--spacing-sm) var(--spacing-lg);background:var(--gradient-blue);color:#fff;border:none;border-radius:var(--radius-md);font-weight:500;font-family:inherit;cursor:pointer;transition:all var(--transition-fast);height:fit-content}.filter-btn:hover{transform:translateY(-1px);box-shadow:0 0 20px #3b82f64d}.transaction-summary{display:flex;justify-content:space-around;flex-wrap:wrap;gap:var(--spacing-lg);padding:var(--spacing-xl);background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);margin-top:var(--spacing-lg)}.summary-item{display:flex;align-items:center;gap:var(--spacing-sm);font-size:1rem}.summary-item strong{color:var(--text-secondary)}.summary-item .income-amount{color:var(--success);font-weight:700;font-family:var(--font-mono)}.summary-item .expense-amount{color:var(--danger);font-weight:700;font-family:var(--font-mono)}.no-data{text-align:center;padding:var(--spacing-2xl);color:var(--text-muted)}.loading{display:flex;align-items:center;justify-content:center;min-height:100vh;font-size:1.125rem;color:var(--text-muted);gap:var(--spacing-md)}.loading:after{content:"";width:20px;height:20px;border:2px solid var(--border-default);border-top-color:var(--accent-purple);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.live-indicator{animation:pulse 2s ease-in-out infinite}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-faint)}:focus-visible{outline:2px solid var(--accent-purple);outline-offset:2px}::selection{background:var(--accent-purple-glow);color:var(--text-primary)}.text-center{text-align:center}.text-success{color:var(--success)}.text-danger{color:var(--danger)}.text-muted{color:var(--text-muted)}.font-bold{font-weight:700}.font-mono{font-family:var(--font-mono)}.mt-lg{margin-top:var(--spacing-lg)}.mb-lg{margin-bottom:var(--spacing-lg)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .3s ease-out}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton{background:linear-gradient(90deg,var(--bg-secondary) 25%,var(--bg-elevated) 50%,var(--bg-secondary) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-md)}