:root{--bg: var(--tg-theme-bg-color, #f5f6f8);--card: var(--tg-theme-secondary-bg-color, #ffffff);--text: var(--tg-theme-text-color, #1c1e21);--hint: var(--tg-theme-hint-color, #8a929c);--link: var(--tg-theme-link-color, #1f5fa8);--btn: var(--tg-theme-button-color, #1f5fa8);--btn-text: var(--tg-theme-button-text-color, #ffffff);--danger: #d64541;--ok: #2e9e5b;--radius: 12px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:15px;line-height:1.45;padding-bottom:72px}#root{max-width:760px;margin:0 auto;padding:12px}h1{font-size:20px;margin:14px 0 10px}h2{font-size:17px;margin:16px 0 8px}.card{background:var(--card);border-radius:var(--radius);padding:14px;margin-bottom:10px;box-shadow:0 1px 3px #00000012}.row{display:flex;gap:8px;align-items:center}.row-between{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.muted{color:var(--hint);font-size:13px}.small{font-size:13px}.right{text-align:right}.bold{font-weight:600}.mt8{margin-top:8px}.mt16{margin-top:16px}.mb8{margin-bottom:8px}.field{display:flex;flex-direction:column;gap:4px;margin-bottom:10px}.field-label{font-size:13px;color:var(--hint)}.field-hint{font-size:12px;color:var(--hint)}.input{width:100%;padding:10px 12px;border:1px solid #d5dade;border-radius:10px;background:var(--bg);color:var(--text);font-size:15px;font-family:inherit}.input:focus{outline:2px solid var(--link);border-color:transparent}textarea.input{resize:vertical;min-height:64px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 16px;border:none;border-radius:10px;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;background:var(--btn);color:var(--btn-text)}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5;cursor:default}.btn-secondary{background:transparent;border:1.5px solid var(--btn);color:var(--btn)}.btn-ghost{background:transparent;color:var(--link);padding:6px 10px}.btn-danger{background:transparent;border:1.5px solid var(--danger);color:var(--danger)}.btn-sm{padding:6px 10px;font-size:13px;border-radius:8px}.btn-block{width:100%}.chip{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}.st-draft{background:#e9edf2;color:#5a6572}.st-sent{background:#e3edfb;color:#1f5fa8}.st-accepted{background:#e0f3e8;color:#2e9e5b}.st-declined{background:#fbe7e6;color:#d64541}.nav{position:fixed;bottom:0;left:0;right:0;background:var(--card);display:flex;justify-content:center;gap:4px;padding:8px 10px calc(8px + env(safe-area-inset-bottom));box-shadow:0 -2px 10px #00000014;z-index:50}.nav-btn{flex:1;max-width:160px;padding:8px 6px;border:none;background:transparent;color:var(--hint);font-size:12px;font-family:inherit;border-radius:10px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px}.nav-btn.active{color:var(--link);background:#1f5fa814}.nav-icon{font-size:20px;line-height:1}.stepper{display:flex;gap:6px;margin-bottom:12px}.step{flex:1;text-align:center;font-size:12px;color:var(--hint);padding:6px 4px;background:var(--card);border-radius:8px}.step.active{color:#fff;background:var(--btn);font-weight:600}.items-table{width:100%;border-collapse:collapse;font-size:13px}.items-table th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.4px;color:var(--hint);padding:6px 4px;border-bottom:1px solid #e3e7ec}.items-table td{padding:6px 4px;border-bottom:1px solid #eef1f4;vertical-align:top}.items-table input{width:100%;border:1px solid transparent;background:transparent;font:inherit;color:inherit;padding:4px;border-radius:6px}.items-table input:hover,.items-table input:focus{border-color:#d5dade;background:var(--bg);outline:none}.section-row td{background:#e8f0fb;font-weight:600;font-size:13px;padding:7px 8px;border-radius:6px}.subsection{margin-top:14px;padding:10px 0 0 12px;border-left:3px solid #e8f0fb}.totals-line{display:flex;justify-content:space-between;padding:4px 0;font-size:15px}.totals-grand{font-size:18px;font-weight:700;border-top:2px solid var(--text);margin-top:4px;padding-top:8px}.error-box{background:#fbe7e6;color:#a3322e;border-radius:10px;padding:10px 12px;margin:8px 0;font-size:14px}.warn-box{background:#fdf3d7;color:#8a6d1a;border-radius:10px;padding:10px 12px;margin:8px 0;font-size:13px}.list-item{cursor:pointer}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:flex-end;justify-content:center;z-index:100}.modal{background:var(--card);width:100%;max-width:760px;max-height:85vh;overflow-y:auto;border-radius:16px 16px 0 0;padding:16px}.spinner-wrap{display:flex;align-items:center;justify-content:center;gap:10px;padding:40px 0;color:var(--hint)}.spinner{width:22px;height:22px;border:3px solid #dfe4ea;border-top-color:var(--btn);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty{text-align:center;color:var(--hint);padding:40px 0}