:root{--bg:#f3f4f8;--ink:#1f2026;--muted:#6d707b;--card:#ffffff;--line:#e6e8ef;--brand-1:#ffe680;--brand-2:#ffd54d;--brand-ink:#4a3500;--ok:#1f8f58;--warn:#b44f26}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:linear-gradient(180deg,#f8f9fc,#eff1f7);font-family:SF Pro Display,Avenir Next,Helvetica Neue,Helvetica,sans-serif}.background{display:none}.shell{position:relative;max-width:440px;margin:0 auto;min-height:100vh;padding:18px 14px calc(104px + env(safe-area-inset-bottom))}.header{padding:2px 2px 10px}.header h1{margin:0;font-size:1.7rem;letter-spacing:-.02em}.header p{margin:6px 0 0;color:var(--muted);font-size:.92rem}.nav-wrap{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(12px + env(safe-area-inset-bottom));width:min(420px,calc(100vw - 20px));z-index:30}.nav{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));grid-gap:6px;gap:6px;background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:18px;padding:7px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:0 14px 30px rgba(18,24,40,.12)}.nav-link{text-decoration:none;text-align:center;color:#72768a;border-radius:12px;padding:9px 6px;font-size:.72rem;font-weight:600}.nav-link.active{background:#1f2026;color:#fff}.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:16px;box-shadow:0 8px 24px rgba(24,29,44,.05)}.hero-balance-card{border-radius:22px;padding:16px;border:1px solid #ebc74b;background:linear-gradient(140deg,var(--brand-1),var(--brand-2));color:var(--brand-ink);box-shadow:0 12px 26px rgba(211,159,17,.22)}.hero-balance-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.hero-meta{margin:0;font-size:.9rem;opacity:.9;font-weight:600}.hero-pill{background:rgba(255,255,255,.45);border:1px solid rgba(89,63,0,.15);border-radius:999px;padding:4px 10px;font-size:.72rem;font-weight:700}.hero-balance-value{margin:12px 0 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var(--line)}.alert{padding:11px 12px;border-radius:12px;background:#ffe8e1;border:1px solid #f4c0b1;color:#8d2f18}.success-box{border-color:#b8e2ca;background:#ebfff3}.grid{display:grid;grid-gap:14px;gap:14px}.admin-header h2{margin:0;font-size:1.12rem}.admin-header p{margin:6px 0 0;color:var(--muted)}.admin-nav-wrap{overflow-x:auto;padding-bottom:2px}.admin-nav{gap:8px;min-width:max-content}.admin-nav,.admin-nav-link{display:inline-flex;align-items:center}.admin-nav-link{gap:6px;text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:8px 12px;color:#464b5d;background:#fff;font-size:.86rem;font-weight:600}.admin-nav-link.active{background:#1f2026;color:#fff;border-color:#1f2026}.admin-nav-logout{display:inline-flex;align-items:center;gap:6px;border:1px solid #efc5b8;border-radius:999px;padding:8px 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var(--line);background:#fff;border-radius:12px;padding:12px;font-weight:700;cursor:pointer}.admin-mode-btn.active{background:#1f2026;color:#fff;border-color:#1f2026}.admin-inline-form{grid-template-columns:1fr;align-items:end}.admin-stats-grid{display:grid;grid-gap:10px;gap:10px;grid-template-columns:1fr}.admin-stat-label{margin:0;color:var(--muted);font-size:.82rem}.admin-stat-value{margin:6px 0 0;font-size:1.35rem;font-weight:800;letter-spacing:-.01em}.admin-stat-sub{margin:6px 0 0;color:var(--muted);font-size:.83rem}.admin-calendar-row{display:flex;flex-wrap:wrap;gap:6px 12px;padding:8px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:.86rem}.admin-calendar-row span{white-space:nowrap}.grid-2,.grid-3{grid-template-columns:1fr}.login-shell{min-height:58vh;display:grid;place-items:center}.login-card{width:min(100%,420px)}.qr-box{border:2px dashed #1f2026;border-radius:14px;padding:16px;background:#fff;word-break:break-all}@media 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