:root{--brand:#2b6cee;--brand-dark:#1d4fb0;--ink:#14171f;--ink-soft:#5b6472;--line:#e3e8f0;--bg:#f6f8fc;--card:#fff;--ok:#16a34a;--ok-bg:#e9f7ee;--warn:#d97706;--warn-bg:#fdf3e6;--danger:#dc2626;--danger-bg:#fdeaea;--radius:12px;--shadow:0 1px 3px #14171f0f, 0 4px 16px #14171f0d;--mono:"IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;--sans:"IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--sans);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;line-height:1.5}.app-shell{flex-direction:column;min-height:100vh;display:flex}.topbar{background:var(--card);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:14px 24px;display:flex}.topbar .brand{letter-spacing:-.01em;font-size:16px;font-weight:700}.topbar .brand span{color:var(--brand)}.topbar .who{color:var(--ink-soft);align-items:center;gap:12px;font-size:13px;display:flex}.role-chip{font-family:var(--mono);text-transform:uppercase;letter-spacing:.04em;background:var(--brand);color:#fff;border-radius:6px;padding:3px 8px;font-size:11px}.page{width:100%;max-width:880px;margin:0 auto;padding:32px 24px}.center-wrap{flex:1;justify-content:center;align-items:center;padding:24px;display:flex}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px}.card.narrow{width:100%;max-width:380px}.card h1{letter-spacing:-.01em;margin-bottom:4px;font-size:20px}.card .sub{color:var(--ink-soft);margin-bottom:24px;font-size:13px}label{margin-bottom:6px;font-size:13px;font-weight:600;display:block}.field{margin-bottom:16px}input[type=text],input[type=email],input[type=password]{width:100%;font-size:14px;font-family:var(--sans);border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:9px;padding:11px 13px;transition:border-color .15s,box-shadow .15s}input:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px #2b6cee1f}button.primary{width:100%;font-size:14px;font-weight:600;font-family:var(--sans);color:#fff;background:var(--brand);cursor:pointer;border:none;border-radius:9px;padding:12px;transition:background .15s}button.primary:hover:not(:disabled){background:var(--brand-dark)}button.primary:disabled{opacity:.55;cursor:not-allowed}button.ghost{font-family:var(--sans);color:var(--ink-soft);border:1px solid var(--line);cursor:pointer;background:0 0;border-radius:8px;padding:7px 13px;font-size:13px;font-weight:600}button.ghost:hover{border-color:var(--ink-soft);color:var(--ink)}.msg{border-radius:9px;margin-bottom:16px;padding:10px 12px;font-size:13px}.msg.error{background:var(--danger-bg);color:var(--danger)}.msg.ok{background:var(--ok-bg);color:var(--ok)}.msg.warn{background:var(--warn-bg);color:var(--warn)}.table-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}table{border-collapse:collapse;width:100%;font-size:13px}th{text-align:left;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);border-bottom:1px solid var(--line);background:#fbfcfe;padding:12px 16px;font-size:11px}td{border-bottom:1px solid var(--line);padding:12px 16px}tr:last-child td{border-bottom:none}tr.clickable:hover{cursor:pointer;background:#f9fbff}.mono{font-family:var(--mono);font-size:12px}.badge{border-radius:20px;padding:3px 9px;font-size:11px;font-weight:700;display:inline-block}.badge.paid{background:var(--ok-bg);color:var(--ok)}.badge.part_paid{background:var(--warn-bg);color:var(--warn)}.badge.pending{color:var(--ink-soft);background:#eef1f6}.badge.cancelled{background:var(--danger-bg);color:var(--danger)}.spinner{vertical-align:middle;border:2px solid #fff6;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.7s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.section-title{letter-spacing:-.01em;margin-bottom:4px;font-size:18px}.section-sub{color:var(--ink-soft);margin-bottom:24px;font-size:13px}.back-link{color:var(--brand);cursor:pointer;background:0 0;border:none;margin-bottom:16px;padding:0;font-size:13px;font-weight:600}.tabs{gap:4px;display:flex}.tab{font-family:var(--sans);color:var(--ink-soft);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:7px 14px;font-size:13px;font-weight:600;transition:background .15s,color .15s}.tab:hover{color:var(--ink);background:#f0f3f9}.tab.active{background:var(--brand);color:#fff}