:root{--font-family: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--bg-main: #090d16;--bg-card: rgba(17, 24, 39, .75);--bg-card-hover: rgba(30, 41, 59, .85);--bg-glass: rgba(15, 23, 42, .65);--bg-input: rgba(15, 23, 42, .8);--border-color: rgba(255, 255, 255, .08);--border-color-hover: rgba(99, 102, 241, .4);--text-main: #f8fafc;--text-muted: #94a3b8;--text-subtle: #64748b;--primary: #6366f1;--primary-hover: #4f46e5;--primary-light: rgba(99, 102, 241, .15);--accent-green: #10b981;--accent-green-bg: rgba(16, 185, 129, .15);--accent-amber: #f59e0b;--accent-rose: #f43f5e;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 10px 25px -5px rgba(0, 0, 0, .4), 0 8px 10px -6px rgba(0, 0, 0, .3);--shadow-lg: 0 20px 35px -10px rgba(0, 0, 0, .6);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .25s cubic-bezier(.4, 0, .2, 1)}[data-theme=light]{--bg-main: #f1f5f9;--bg-card: rgba(255, 255, 255, .9);--bg-card-hover: rgba(248, 250, 252, 1);--bg-glass: rgba(255, 255, 255, .85);--bg-input: #ffffff;--border-color: rgba(0, 0, 0, .08);--border-color-hover: rgba(99, 102, 241, .5);--text-main: #0f172a;--text-muted: #475569;--text-subtle: #94a3b8;--shadow-sm: 0 2px 6px rgba(0, 0, 0, .04);--shadow-md: 0 10px 20px -3px rgba(0, 0, 0, .08);--shadow-lg: 0 20px 30px -5px rgba(0, 0, 0, .12)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-main);color:var(--text-main);line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased;background-image:radial-gradient(at 0% 0%,rgba(99,102,241,.12) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(16,185,129,.08) 0px,transparent 50%);background-attachment:fixed}.app-container{max-width:1024px;margin:0 auto;padding:16px 16px 100px}.navbar{display:flex;align-items:center;justify-content:space-between;background:var(--bg-glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-color);padding:12px 20px;border-radius:var(--radius-lg);margin-bottom:24px;box-shadow:var(--shadow-md);position:sticky;top:12px;z-index:50}.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.25rem;background:linear-gradient(135deg,#f8fafc,#a5b4fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.brand-icon{background:linear-gradient(135deg,var(--primary) 0%,#818cf8 100%);width:38px;height:38px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 4px 12px #6366f14d}.user-profile{display:flex;align-items:center;gap:12px}.role-badge{font-size:.72rem;font-weight:700;padding:3px 10px;border-radius:var(--radius-full);text-transform:uppercase;letter-spacing:.5px}.role-badge.admin{background:#f43f5e33;color:#fb7185;border:1px solid rgba(244,63,94,.4)}.role-badge.member{background:var(--primary-light);color:#818cf8;border:1px solid rgba(99,102,241,.3)}.avatar{width:36px;height:36px;border-radius:var(--radius-full);object-fit:cover;border:2px solid var(--primary)}.avatar-placeholder{width:36px;height:36px;border-radius:var(--radius-full);background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem}.nav-actions{display:flex;align-items:center;gap:8px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:var(--radius-md);font-size:.9rem;font-weight:600;font-family:inherit;cursor:pointer;border:none;transition:all var(--transition-fast);outline:none;text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,#4f46e5 100%);color:#fff;box-shadow:0 4px 14px #6366f159}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px #6366f180;background:linear-gradient(135deg,#4f46e5,#4338ca)}.btn-secondary{background:var(--bg-card);color:var(--text-main);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--border-color-hover)}.btn-icon{width:40px;height:40px;padding:0;border-radius:var(--radius-md);background:var(--bg-card);color:var(--text-main);border:1px solid var(--border-color)}.btn-icon:hover{background:var(--bg-card-hover);border-color:var(--border-color-hover);transform:scale(1.05)}.btn-danger{background:#f43f5e26;color:#fb7185;border:1px solid rgba(244,63,94,.3)}.btn-danger:hover{background:#f43f5e4d;color:#fff}.fab{position:fixed;bottom:24px;right:24px;padding:14px 24px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--primary) 0%,#4f46e5 100%);color:#fff;font-size:1rem;font-weight:700;box-shadow:0 10px 25px #6366f180;z-index:40;display:flex;align-items:center;gap:10px;border:none;cursor:pointer;transition:all var(--transition-normal)}.fab:hover{transform:translateY(-3px) scale(1.03);box-shadow:0 14px 30px #6366f199}.glass-card{background:var(--bg-card);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-md);transition:all var(--transition-normal)}.glass-card:hover{border-color:var(--border-color-hover)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:24px}.stat-card{display:flex;align-items:center;gap:16px}.stat-icon-wrapper{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;background:var(--primary-light);color:var(--primary)}.stat-value{font-size:1.5rem;font-weight:800;color:var(--text-main);line-height:1.2}.stat-label{font-size:.82rem;color:var(--text-muted);font-weight:500}.controls-bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-bottom:20px}.search-box{position:relative;flex:1;min-width:240px}.search-box input{width:100%;padding:10px 14px 10px 40px;background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-main);font-family:inherit;font-size:.9rem;outline:none;transition:border-color var(--transition-fast)}.search-box input:focus{border-color:var(--primary)}.search-box .search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-subtle);pointer-events:none}.filter-group{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.select-input{padding:10px 14px;background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-main);font-family:inherit;font-size:.88rem;outline:none;cursor:pointer}.select-input:focus{border-color:var(--primary)}.expense-list{display:flex;flex-direction:column;gap:12px}.expense-item{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-radius:var(--radius-md);background:var(--bg-card);border:1px solid var(--border-color);transition:all var(--transition-fast)}.expense-item:hover{background:var(--bg-card-hover);border-color:var(--border-color-hover);transform:translate(2px)}.expense-main{display:flex;align-items:center;gap:16px;flex:1}.expense-date-badge{display:flex;flex-direction:column;align-items:center;justify-content:center;width:52px;height:52px;background:#ffffff0a;border-radius:var(--radius-md);border:1px solid var(--border-color);text-align:center}.expense-date-badge .day{font-size:1.1rem;font-weight:800;color:var(--text-main);line-height:1}.expense-date-badge .month{font-size:.7rem;font-weight:600;text-transform:uppercase;color:var(--text-muted)}.expense-details{display:flex;flex-direction:column;gap:4px}.expense-title{font-weight:700;font-size:1rem;color:var(--text-main)}.expense-meta{display:flex;align-items:center;gap:8px;font-size:.8rem;color:var(--text-subtle)}.tag-badges{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}.tag-badge{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;color:#fff;box-shadow:var(--shadow-sm)}.expense-amount-actions{display:flex;align-items:center;gap:16px}.expense-amount{font-size:1.15rem;font-weight:800;color:var(--text-main);letter-spacing:-.5px}.item-actions{display:flex;gap:4px;opacity:.8}.expense-item:hover .item-actions{opacity:1}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:16px;z-index:100;animation:fadeIn .2s ease-out}.modal-content{background:#0f172a;border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;max-width:540px;padding:24px;box-shadow:var(--shadow-lg);position:relative;max-height:90vh;overflow-y:auto;animation:slideUp .25s ease-out}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--border-color)}.modal-title{font-size:1.2rem;font-weight:800;color:var(--text-main)}.form-group{margin-bottom:16px;display:flex;flex-direction:column;gap:6px}.form-label{font-size:.85rem;font-weight:600;color:var(--text-muted)}.form-input{width:100%;padding:12px 14px;background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-main);font-family:inherit;font-size:.95rem;outline:none;transition:border-color var(--transition-fast)}.form-input:focus{border-color:var(--primary)}.tag-selector{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}.tag-select-btn{padding:6px 12px;border-radius:var(--radius-full);border:1px solid var(--border-color);background:var(--bg-card);color:var(--text-muted);font-size:.82rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;gap:6px}.tag-select-btn.selected{color:#fff;border-color:transparent}.color-picker{display:flex;gap:8px;flex-wrap:wrap}.color-dot{width:32px;height:32px;border-radius:var(--radius-full);cursor:pointer;border:2px solid transparent;transition:transform .15s}.color-dot.active{transform:scale(1.2);border-color:#fff}.member-list{display:flex;flex-direction:column;gap:10px;margin-top:12px}.member-row{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border-color)}.empty-state{text-align:center;padding:48px 24px;color:var(--text-muted)}.empty-icon{margin:0 auto 16px;color:var(--text-subtle)}.login-wrapper{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.login-card{max-width:440px;width:100%;text-align:center;padding:40px 32px}.login-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--radius-full);background:var(--primary-light);color:#818cf8;font-size:.8rem;font-weight:700;margin-bottom:20px}.google-btn{width:100%;padding:14px 20px;border-radius:var(--radius-md);background:#fff;color:#1f2937;font-weight:700;font-size:1rem;display:flex;align-items:center;justify-content:center;gap:12px;border:none;cursor:pointer;box-shadow:0 4px 16px #0003;transition:all var(--transition-fast);margin-top:24px}.google-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px #0000004d;background:#f8fafc}.alert{padding:12px 16px;border-radius:var(--radius-md);font-size:.88rem;margin-bottom:16px;display:flex;align-items:center;gap:10px}.alert-danger{background:#f43f5e26;color:#fb7185;border:1px solid rgba(244,63,94,.3)}.alert-info{background:#6366f126;color:#a5b4fc;border:1px solid rgba(99,102,241,.3)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 640px){.app-container{padding:12px}.navbar{padding:10px 14px}.brand{font-size:1.1rem}.expense-item{flex-direction:column;align-items:flex-start;gap:12px}.expense-amount-actions{width:100%;justify-content:space-between;padding-top:8px;border-top:1px solid var(--border-color)}}