:root{--bg-primary: #0a0a1a;--bg-secondary: #10102a;--bg-surface: rgba(255,255,255,.04);--bg-surface-hover: rgba(255,255,255,.08);--bg-glass: rgba(255,255,255,.06);--border-glass: rgba(255,255,255,.08);--border-glass-strong: rgba(255,255,255,.15);--c-primary: #7c6cf0;--c-primary-light: #a29bfe;--c-secondary: #00cec9;--c-accent: #fd79a8;--c-success: #00b894;--c-warning: #fdcb6e;--c-danger: #ff6b6b;--grad-primary: linear-gradient(135deg, #6c5ce7, #a29bfe);--grad-accent: linear-gradient(135deg, #fd79a8, #f8a5c2);--grad-success: linear-gradient(135deg, #00b894, #55efc4);--grad-hero: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 50%, #00cec9 100%);--text-1: #ffffff;--text-2: rgba(255,255,255,.7);--text-3: rgba(255,255,255,.4);--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--r-sm: 10px;--r-md: 14px;--r-lg: 20px;--r-xl: 28px;--r-full: 9999px;--shadow-md: 0 4px 24px rgba(0,0,0,.4);--shadow-lg: 0 8px 40px rgba(0,0,0,.5);--shadow-glow: 0 0 30px rgba(108,92,231,.25);--t-fast: .15s ease;--t-normal: .28s ease;--t-spring: .4s cubic-bezier(.16,1,.3,1);--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:var(--font);background:var(--bg-primary);color:var(--text-1);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;overflow:hidden}body{background:radial-gradient(ellipse at 20% 40%,rgba(108,92,231,.12) 0%,transparent 55%),radial-gradient(ellipse at 80% 20%,rgba(0,206,201,.08) 0%,transparent 50%),radial-gradient(ellipse at 50% 90%,rgba(253,121,168,.06) 0%,transparent 50%),var(--bg-primary)}#app{height:100%;width:100%;max-width:520px;margin:0 auto;position:relative;display:flex;flex-direction:column;overflow:hidden;padding-top:var(--safe-top);padding-bottom:var(--safe-bottom)}a{color:var(--c-primary-light);text-decoration:none}.scroll-area{flex:1;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.1) transparent}.scroll-area::-webkit-scrollbar{width:4px}.scroll-area::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:4px}.page-header{padding:20px 20px 0;flex-shrink:0}.page-header h1{font-size:28px;font-weight:800;letter-spacing:-.5px}.page-header p{color:var(--text-2);font-size:14px;margin-top:4px}.page-header .subtitle{background:var(--grad-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:700}.header-bar{display:flex;align-items:center;gap:12px;padding:16px 20px 12px;flex-shrink:0}.header-bar .back-btn{width:36px;height:36px;border-radius:var(--r-full);background:var(--bg-glass);border:1px solid var(--border-glass);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--t-fast);color:var(--text-1);font-size:18px}.header-bar .back-btn:hover{background:var(--bg-surface-hover)}.header-bar .header-info{flex:1}.header-bar .header-info h2{font-size:18px;font-weight:700}.header-bar .header-info span{font-size:12px;color:var(--text-3)}.tab-bar{display:flex;gap:4px;padding:4px 16px 8px;flex-shrink:0;overflow-x:auto}.tab-bar::-webkit-scrollbar{display:none}.tab-btn{flex:1;min-width:0;padding:10px 6px;font-size:12px;font-weight:600;font-family:var(--font);color:var(--text-3);background:none;border:none;border-radius:var(--r-md);cursor:pointer;transition:var(--t-fast);white-space:nowrap;text-align:center}.tab-btn.active{color:var(--text-1);background:var(--bg-glass);border:1px solid var(--border-glass)}.tab-btn:hover:not(.active){color:var(--text-2)}.card{background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--r-lg);padding:16px;transition:var(--t-normal)}.card:hover{border-color:var(--border-glass-strong)}.card-row{display:flex;align-items:center;gap:12px}.card-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.stat-card{background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--r-lg);padding:14px;text-align:center}.stat-card .stat-label{font-size:11px;color:var(--text-3);text-transform:uppercase;letter-spacing:.5px;font-weight:600}.stat-card .stat-value{font-size:22px;font-weight:800;margin-top:4px;letter-spacing:-.5px}.stat-card .stat-value.positive{color:var(--c-success)}.stat-card .stat-value.negative{color:var(--c-danger)}.big-stat{background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--r-lg);padding:20px;text-align:center;margin-bottom:10px}.big-stat .big-label{font-size:12px;color:var(--text-3);text-transform:uppercase;letter-spacing:1px;font-weight:600}.big-stat .big-value{font-size:36px;font-weight:900;letter-spacing:-1px;background:var(--grad-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-top:4px}.group-card{background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--r-lg);padding:16px;cursor:pointer;transition:var(--t-spring);animation:slideUp .4s var(--t-spring) both}.group-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--shadow-glow)}.group-card .gc-top{display:flex;align-items:center;gap:12px;margin-bottom:10px}.group-card .gc-emoji{font-size:32px;width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--bg-surface);border-radius:var(--r-md)}.group-card .gc-info{flex:1}.group-card .gc-info h3{font-size:16px;font-weight:700}.group-card .gc-info span{font-size:12px;color:var(--text-3)}.group-card .gc-bottom{display:flex;justify-content:space-between;align-items:center}.group-card .gc-members{display:flex;gap:-4px}.group-card .gc-total{font-size:14px;font-weight:700;color:var(--c-primary-light)}.avatar{width:32px;height:32px;border-radius:var(--r-full);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#fff;flex-shrink:0;border:2px solid var(--bg-primary)}.avatar.sm{width:26px;height:26px;font-size:11px}.avatar.lg{width:44px;height:44px;font-size:20px}.avatar-stack{display:flex}.avatar-stack .avatar{margin-left:-8px}.avatar-stack .avatar:first-child{margin-left:0}.expense-item{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:var(--r-md);transition:var(--t-fast);cursor:pointer}.expense-item:hover{background:var(--bg-surface-hover)}.expense-item .ei-icon{width:40px;height:40px;border-radius:var(--r-md);background:var(--bg-surface);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}.expense-item .ei-info{flex:1;min-width:0}.expense-item .ei-info h4{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.expense-item .ei-info span{font-size:12px;color:var(--text-3)}.expense-item .ei-amount{text-align:right;flex-shrink:0}.expense-item .ei-amount .amount{font-size:15px;font-weight:700}.expense-item .ei-amount .payer{font-size:11px;color:var(--text-3)}.txn-item{display:flex;align-items:center;gap:10px;padding:14px 16px;background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--r-md)}.txn-item .txn-arrow{color:var(--c-primary-light);font-size:18px;flex-shrink:0}.txn-item .txn-amount{font-size:16px;font-weight:800;color:var(--c-warning);margin-left:auto}.balance-item{display:flex;align-items:center;gap:10px;padding:8px 0}.balance-item .bi-name{font-size:13px;font-weight:600;width:70px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.balance-item .bi-bar-wrap{flex:1;height:8px;background:var(--bg-surface);border-radius:4px;overflow:hidden;position:relative}.balance-item .bi-bar{height:100%;border-radius:4px;transition:width .6s var(--t-spring);min-width:2px}.balance-item .bi-bar.positive{background:var(--grad-success)}.balance-item .bi-bar.negative{background:var(--grad-accent)}.balance-item .bi-value{font-size:12px;font-weight:700;width:70px;text-align:right}.balance-item .bi-value.positive{color:var(--c-success)}.balance-item .bi-value.negative{color:var(--c-danger)}.member-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--r-md);transition:var(--t-fast)}.member-item:hover{background:var(--bg-surface-hover)}.member-item .mi-info{flex:1}.member-item .mi-info h4{font-size:14px;font-weight:600}.member-item .mi-info span{font-size:12px;color:var(--text-3)}.member-item .mi-badge{font-size:10px;font-weight:700;padding:3px 8px;border-radius:var(--r-full);background:var(--bg-surface);color:var(--c-primary-light);text-transform:uppercase;letter-spacing:.5px}.member-item .mi-badge.admin{background:#6c5ce733;color:var(--c-primary-light)}.rule-card{display:flex;align-items:center;gap:12px;padding:14px;background:var(--bg-glass);border:1px solid var(--border-glass);border-radius:var(--r-md)}.rule-card .rc-icon{font-size:24px}.rule-card .rc-info{flex:1}.rule-card .rc-info h4{font-size:13px;font-weight:600}.rule-card .rc-info p{font-size:11px;color:var(--text-3);margin-top:2px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;font-size:14px;font-weight:600;font-family:var(--font);border:none;border-radius:var(--r-md);cursor:pointer;transition:var(--t-normal);white-space:nowrap}.btn-primary{background:var(--grad-primary);color:#fff;box-shadow:0 4px 16px #6c5ce759}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 24px #6c5ce780}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--bg-glass);color:var(--text-1);border:1px solid var(--border-glass)}.btn-secondary:hover{background:var(--bg-surface-hover);border-color:var(--border-glass-strong)}.btn-danger{background:#ff6b6b26;color:var(--c-danger);border:1px solid rgba(255,107,107,.2)}.btn-danger:hover{background:#ff6b6b40}.btn-sm{padding:8px 16px;font-size:12px;border-radius:var(--r-sm)}.btn-full{width:100%}.btn-icon{width:36px;height:36px;padding:0;border-radius:var(--r-full);background:var(--bg-glass);border:1px solid var(--border-glass);color:var(--text-2);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:var(--t-fast);font-family:var(--font)}.btn-icon:hover{background:var(--bg-surface-hover);color:var(--text-1)}.fab{position:absolute;bottom:24px;right:20px;width:56px;height:56px;border-radius:var(--r-full);background:var(--grad-primary);border:none;color:#fff;font-size:28px;cursor:pointer;box-shadow:0 6px 24px #6c5ce780;transition:var(--t-spring);z-index:10;display:flex;align-items:center;justify-content:center}.fab:hover{transform:scale(1.08);box-shadow:0 8px 32px #6c5ce799}.fab:active{transform:scale(.95)}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:12px;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}.form-input{width:100%;padding:12px 14px;font-size:15px;font-family:var(--font);background:var(--bg-surface);border:1px solid var(--border-glass);border-radius:var(--r-md);color:var(--text-1);outline:none;transition:var(--t-fast)}.form-input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px #6c5ce733}.form-input::placeholder{color:var(--text-3)}select.form-input{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='rgba(255,255,255,0.4)' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}select.form-input option{background:var(--bg-secondary);color:var(--text-1)}.toggle-wrap{display:flex;align-items:center;gap:10px;cursor:pointer}.toggle{position:relative;width:44px;height:24px;background:var(--bg-surface);border-radius:12px;transition:var(--t-fast);flex-shrink:0}.toggle:after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:var(--t-fast)}.toggle.on{background:var(--c-primary)}.toggle.on:after{left:23px}.check-item{display:flex;align-items:center;gap:10px;padding:8px 0;cursor:pointer}.check-box{width:22px;height:22px;border-radius:6px;border:2px solid var(--border-glass-strong);display:flex;align-items:center;justify-content:center;transition:var(--t-fast);flex-shrink:0;font-size:12px;color:transparent}.check-box.checked{background:var(--c-primary);border-color:var(--c-primary);color:#fff}.emoji-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}.emoji-opt{width:100%;aspect-ratio:1;font-size:22px;background:var(--bg-surface);border:2px solid transparent;border-radius:var(--r-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--t-fast)}.emoji-opt:hover{background:var(--bg-surface-hover)}.emoji-opt.selected{border-color:var(--c-primary);background:#6c5ce726}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:100;display:flex;align-items:flex-end;justify-content:center;animation:fadeIn .2s ease}.modal-sheet{width:100%;max-width:520px;max-height:90vh;background:var(--bg-secondary);border-top-left-radius:var(--r-xl);border-top-right-radius:var(--r-xl);overflow-y:auto;animation:slideUp .35s var(--t-spring)}.modal-handle{width:40px;height:4px;background:#fff3;border-radius:2px;margin:10px auto}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:8px 20px 12px}.modal-header h3{font-size:18px;font-weight:700}.modal-body{padding:0 20px 24px}.modal-actions{display:flex;gap:10px;padding:16px 20px;padding-bottom:max(16px,var(--safe-bottom));border-top:1px solid var(--border-glass)}.modal-actions .btn{flex:1}.toast{position:fixed;top:calc(16px + var(--safe-top));left:50%;transform:translate(-50%);padding:12px 20px;background:var(--bg-secondary);border:1px solid var(--border-glass);border-radius:var(--r-md);font-size:13px;font-weight:500;color:var(--text-1);box-shadow:var(--shadow-lg);z-index:200;animation:toastIn .4s var(--t-spring);white-space:nowrap;max-width:90%}.toast.success{border-color:var(--c-success)}.toast.error{border-color:var(--c-danger)}.identity-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;padding:20px}.identity-card{display:flex;flex-direction:column;align-items:center;gap:8px;padding:20px 12px;background:var(--bg-glass);border:2px solid var(--border-glass);border-radius:var(--r-lg);cursor:pointer;transition:var(--t-spring)}.identity-card:hover{border-color:var(--c-primary);transform:translateY(-2px)}.identity-card .id-emoji{font-size:36px}.identity-card .id-name{font-size:14px;font-weight:600}.identity-card .id-role{font-size:10px;color:var(--text-3);text-transform:uppercase;letter-spacing:.5px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 40px;text-align:center}.empty-state .es-icon{font-size:64px;margin-bottom:16px;opacity:.6}.empty-state h3{font-size:18px;font-weight:700;margin-bottom:8px}.empty-state p{font-size:13px;color:var(--text-3);line-height:1.5;max-width:260px}.section-head{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 8px}.section-head h3{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--text-3)}.px{padding-left:20px;padding-right:20px}.py{padding-top:16px;padding-bottom:16px}.gap-sm{display:flex;flex-direction:column;gap:8px}.gap-md{display:flex;flex-direction:column;gap:12px}.mt-auto{margin-top:auto}.text-center{text-align:center}.text-sm{font-size:12px}.text-muted{color:var(--text-3)}.divider{height:1px;background:var(--border-glass);margin:16px 0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(40px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes toastIn{0%{transform:translate(-50%) translateY(-20px);opacity:0}to{transform:translate(-50%) translateY(0);opacity:1}}@keyframes toastOut{0%{opacity:1}to{opacity:0;transform:translate(-50%) translateY(-20px)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes scaleIn{0%{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}.anim-stagger>*{animation:slideUp .4s var(--t-spring) both}.anim-stagger>*:nth-child(1){animation-delay:0ms}.anim-stagger>*:nth-child(2){animation-delay:60ms}.anim-stagger>*:nth-child(3){animation-delay:.12s}.anim-stagger>*:nth-child(4){animation-delay:.18s}.anim-stagger>*:nth-child(5){animation-delay:.24s}.anim-stagger>*:nth-child(6){animation-delay:.3s}.anim-stagger>*:nth-child(7){animation-delay:.36s}.anim-stagger>*:nth-child(8){animation-delay:.42s}.detail-header{text-align:center;padding:8px 0 16px}.detail-cat{font-size:48px;margin-bottom:8px}.detail-amount{font-size:32px;font-weight:900;letter-spacing:-1px;background:var(--grad-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.detail-desc{font-size:14px;color:var(--text-2);margin-top:4px}.detail-meta{display:flex;flex-direction:column;gap:8px}.detail-row{display:flex;justify-content:space-between;align-items:center;padding:6px 0;font-size:14px}.detail-label{color:var(--text-3);font-weight:600;text-transform:uppercase;font-size:11px;letter-spacing:.5px}.detail-splits{display:flex;flex-direction:column;gap:6px}.detail-split-row{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background:var(--bg-surface);border-radius:var(--r-sm);font-size:13px}.detail-split-row span:last-child{font-weight:700;color:var(--c-primary-light)}#tab-content{animation:fadeIn .15s ease}@media(min-width:600px){body{display:flex;align-items:center;justify-content:center}#app{height:100vh;max-height:900px;border-left:1px solid var(--border-glass);border-right:1px solid var(--border-glass)}.modal-overlay{align-items:center}.modal-sheet{border-radius:var(--r-xl);max-height:85vh}}[dir=rtl]{font-family:Inter,Tajawal,-apple-system,sans-serif}[dir=rtl] .header-bar{flex-direction:row-reverse}[dir=rtl] .header-bar .header-info{text-align:right}[dir=rtl] .header-bar .back-btn{transform:scaleX(-1)}[dir=rtl] .tab-bar,[dir=rtl] .group-card .gc-top{flex-direction:row-reverse}[dir=rtl] .group-card .gc-info{text-align:right}[dir=rtl] .group-card .gc-bottom,[dir=rtl] .expense-item{flex-direction:row-reverse}[dir=rtl] .expense-item .ei-info{text-align:right}[dir=rtl] .expense-item .ei-amount{text-align:left}[dir=rtl] .member-item{flex-direction:row-reverse}[dir=rtl] .member-item .mi-info{text-align:right}[dir=rtl] .txn-item,[dir=rtl] .balance-item{flex-direction:row-reverse}[dir=rtl] .balance-item .bi-name{text-align:right}[dir=rtl] .balance-item .bi-value{text-align:left}[dir=rtl] .card-row,[dir=rtl] .check-item,[dir=rtl] .rule-card{flex-direction:row-reverse}[dir=rtl] .rule-card .rc-info,[dir=rtl] .identity-card{text-align:right}[dir=rtl] .modal-header,[dir=rtl] .modal-actions,[dir=rtl] .section-head,[dir=rtl] .detail-row,[dir=rtl] .detail-split-row{flex-direction:row-reverse}[dir=rtl] .fab{right:auto;left:20px}[dir=rtl] select.form-input{background-position:left 12px center;padding-left:36px;padding-right:14px}[dir=rtl] .stat-card .stat-value,[dir=rtl] .big-stat .big-value,[dir=rtl] .txn-amount{direction:ltr}