:root{--bg:#f5f7fb;--surface:#fff;--surface-2:#f0f3f9;--text:#0f172a;--muted:#64748b;--primary:#111827;--primary-2:#1f2937;--success:#16a34a;--success-bg:#dcfce7;--danger:#dc2626;--danger-bg:#fee2e2;--warning:#f59e0b;--info:#2563eb;--info-bg:#dbeafe;--border:#e2e8f0;--shadow:0 10px 30px #0f172a14;--radius:18px}*{box-sizing:border-box}html,body,#app{background:var(--bg);min-height:100%;color:var(--text);margin:0;padding:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{-webkit-tap-highlight-color:transparent}button,input{font:inherit}.app-shell{background:linear-gradient(#f8fafc 0%,#eef2f7 100%);min-height:100vh}.brand{align-items:center;gap:12px;display:flex}.brand-mark{color:#fff;background:linear-gradient(135deg,#22c55e,#16a34a);border-radius:14px;justify-content:center;align-items:center;width:40px;height:40px;font-weight:800;display:flex;box-shadow:0 8px 20px #22c55e59}.brand-text{flex-direction:column;align-items:flex-start;line-height:1.05;display:flex}.brand-title{letter-spacing:-.025em;font-size:1.35rem;font-weight:800}.brand-subtitle{opacity:.72;font-size:.78rem}.app-main{width:100%;max-width:560px;margin:0 auto;padding:22px 18px 90px}.panel-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:24px;padding:22px}.section-title{letter-spacing:-.03em;margin:0 0 18px;font-size:1.35rem;font-weight:800}.section-subtitle{color:var(--muted);margin:-8px 0 18px;font-size:.96rem}.btn{background:linear-gradient(180deg, var(--primary), var(--primary-2));color:#fff;letter-spacing:-.01em;cursor:pointer;border:0;border-radius:18px;width:100%;min-height:68px;margin-bottom:12px;font-size:1.05rem;font-weight:700;transition:transform .15s,box-shadow .15s,opacity .15s;box-shadow:0 12px 26px #0f172a2e}.btn:active{transform:scale(.985)}.btn-secondary{border:1px solid var(--border);background:var(--surface);width:100%;min-height:56px;color:var(--text);cursor:pointer;border-radius:16px;margin-top:12px;font-weight:700}.btn-danger{background:linear-gradient(#ef4444,#dc2626)}.btn-success{background:linear-gradient(#22c55e,#16a34a)}.btn-info{background:linear-gradient(#3b82f6,#2563eb)}.input{border:1px solid var(--border);width:100%;min-height:58px;color:var(--text);background:#fff;border-radius:16px;outline:none;margin-bottom:14px;padding:0 16px;font-size:1rem;box-shadow:inset 0 1px 2px #0f172a05}.input:focus{border-color:#93c5fd;box-shadow:0 0 0 4px #3b82f61a}.feedback{text-align:center;border-radius:18px;margin-top:14px;padding:16px;font-weight:700}.feedback--info{background:var(--info-bg);color:var(--info)}.feedback--success{background:var(--success-bg);color:var(--success)}.feedback--danger{background:var(--danger-bg);color:var(--danger)}.scan-box{text-align:center;background:linear-gradient(#f8fafc,#eef4fb);border:2px dashed #94a3b8;border-radius:22px;margin-top:16px;padding:26px 18px}.scan-icon{border:1px solid var(--border);width:84px;height:84px;box-shadow:var(--shadow);background:#fff;border-radius:999px;justify-content:center;align-items:center;margin:0 auto 14px;font-size:2rem;display:flex}.scan-pulse{animation:1.4s ease-in-out infinite pulse}@keyframes pulse{0%{transform:scale(1);box-shadow:0 0 #2563eb40}70%{transform:scale(1.03);box-shadow:0 0 0 14px #2563eb00}to{transform:scale(1);box-shadow:0 0 #2563eb00}}.result-box{background:var(--surface-2);border:1px solid var(--border);text-align:left;border-radius:18px;margin-top:18px;padding:18px}.result-box p{margin:8px 0}.list-card{border:1px solid var(--border);background:#fff;border-radius:18px;margin-top:12px;padding:14px 16px;box-shadow:0 6px 18px #0f172a0a}.list-card p{margin:6px 0}.event-chip{color:#fff;background:#ffffff1f;border-radius:999px;align-items:center;gap:8px;padding:10px 14px;font-size:.86rem;font-weight:700;display:inline-flex}.top-bar{justify-content:center;margin-bottom:18px;display:flex}.logout-btn{color:#fff;cursor:pointer;background:#ffffff14;border:none;border-radius:12px;justify-content:center;align-items:center;width:42px;height:42px;font-size:1.1rem;transition:all .15s;display:flex}.logout-btn:hover{background:#ffffff26}.logout-btn:active{transform:scale(.95)}.event-chip-btn{cursor:pointer;border:none;transition:all .15s}.event-chip-btn:hover{background:#ffffff2e;transform:translateY(-1px)}.event-chip-btn:active{transform:scale(.98)}.screen-header-wrap{flex-direction:column;align-items:flex-start;margin-bottom:18px;display:flex}.screen-back-link{color:var(--muted);cursor:pointer;background:0 0;border:none;margin:0 0 10px;padding:0;font-size:.95rem;font-weight:700}.screen-back-link:active{transform:scale(.98)}.screen-title{letter-spacing:-.03em;color:var(--text);margin:0;font-size:1.55rem;font-weight:800}.amount-display{border:1px solid var(--border);letter-spacing:-.04em;width:100%;min-height:72px;box-shadow:var(--shadow);background:linear-gradient(#fff,#f8fafc);border-radius:18px;justify-content:center;align-items:center;margin-bottom:16px;font-size:2rem;font-weight:800;display:flex}.amount-grid{grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px;display:grid}.amount-btn{border:1px solid var(--border);min-height:68px;color:var(--text);cursor:pointer;background:#fff;border-radius:18px;font-size:1.15rem;font-weight:800;transition:all .15s;box-shadow:0 8px 20px #0f172a0f}.amount-btn:active{background:#f1f5f9;transform:scale(.96)}.scan-screen-box{border:1px solid var(--border);text-align:center;box-shadow:var(--shadow);background:linear-gradient(#f8fafc,#eef4fb);border-radius:24px;margin-top:18px;padding:28px 20px}.scan-screen-icon{border:1px solid var(--border);background:#fff;border-radius:999px;justify-content:center;align-items:center;width:110px;height:110px;margin:0 auto 18px;font-size:2.4rem;display:flex;box-shadow:0 10px 25px #0f172a14}.scan-screen-title{letter-spacing:-.03em;color:var(--text);margin-bottom:8px;font-size:1.35rem;font-weight:800}.scan-screen-subtitle{color:var(--muted);font-size:.98rem;line-height:1.45}.keypad-grid{grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px;display:grid}.keypad-btn{border:1px solid var(--border);min-height:64px;color:var(--text);cursor:pointer;background:#fff;border-radius:18px;font-size:1.4rem;font-weight:800;transition:all .15s;box-shadow:0 8px 20px #0f172a0f}.keypad-btn:active{background:#f8fafc;transform:scale(.97)}.keypad-btn-alt{background:#eef2f7}.keypad-btn-wide{font-size:1.25rem}.amount-display--charge{border:1px solid var(--border);letter-spacing:-.04em;width:100%;min-height:84px;box-shadow:var(--shadow);background:linear-gradient(#fff,#f8fafc);border-radius:20px;justify-content:center;align-items:center;margin-bottom:16px;font-size:2.2rem;font-weight:800;display:flex}.header-menu-wrap{position:relative}.menu-btn{color:#fff;cursor:pointer;background:#ffffff14;border:none;border-radius:12px;justify-content:center;align-items:center;width:42px;height:42px;font-size:1.3rem;font-weight:700;display:flex}.menu-btn:active{transform:scale(.96)}.header-dropdown{border:1px solid var(--border);z-index:50;background:#fff;border-radius:16px;min-width:210px;padding:8px;position:absolute;top:48px;right:0;box-shadow:0 16px 40px #0f172a29}.dropdown-item{text-align:left;width:100%;color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:12px;padding:12px 14px;font-weight:700}.dropdown-item:hover{background:#f8fafc}.app-header{z-index:20;color:#fff;background:linear-gradient(135deg,#0f172a,#1e293b);padding:14px 16px 10px;position:sticky;top:0}.app-header-top{justify-content:space-between;align-items:center;display:flex}.app-header-bottom{opacity:.9;cursor:pointer;white-space:nowrap;text-overflow:ellipsis;border-top:1px solid #ffffff14;margin-top:10px;padding-top:10px;font-size:.95rem;font-weight:700;overflow:hidden}.app-header-bottom:active{opacity:1}