:root{--color-primary: #0f4c5c;--color-primary-dark: #0a343e;--color-accent: #ff8552;--color-bg: #f4f6f7;--color-surface: #ffffff;--color-text: #1c2b30;--color-text-muted: #5c6f75;--color-border: #e1e6e8;--color-danger: #c0392b;--color-success: #2e7d32;--radius: 12px;--shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .06);--max-width: 720px}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--color-bg);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-primary)}button{font-family:inherit}.app-shell{flex:1;display:flex;flex-direction:column;max-width:var(--max-width);margin:0 auto;width:100%;padding-bottom:calc(64px + env(safe-area-inset-bottom))}.topbar{position:sticky;top:0;z-index:10;background:var(--color-primary);color:#fff;padding:14px 16px;padding-top:calc(14px + env(safe-area-inset-top));display:flex;align-items:center;justify-content:space-between}.topbar h1{font-size:18px;margin:0;font-weight:600}.topbar .subtitle{font-size:12px;opacity:.85;margin-top:2px}.icon-btn{background:none;border:none;color:#fff;font-size:20px;cursor:pointer;padding:6px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:10;background:var(--color-surface);border-top:1px solid var(--color-border);display:flex;max-width:var(--max-width);margin:0 auto;padding-bottom:env(safe-area-inset-bottom)}.bottom-nav a{flex:1;text-align:center;padding:10px 4px 8px;text-decoration:none;color:var(--color-text-muted);font-size:11px;display:flex;flex-direction:column;align-items:center;gap:2px}.bottom-nav a.active{color:var(--color-primary);font-weight:600}.bottom-nav .nav-icon{font-size:20px}.page{padding:16px 16px 32px;flex:1}.page-header{margin-bottom:16px}.page-header h2{margin:0 0 4px;font-size:20px}.page-header p{margin:0;color:var(--color-text-muted);font-size:14px}.card{background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.tile-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}@media (min-width: 480px){.tile-grid{grid-template-columns:repeat(3,1fr)}}.tile{background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 12px;text-align:center;text-decoration:none;color:var(--color-text);display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;border:none;font-family:inherit;transition:transform .08s ease}.tile:active{transform:scale(.97)}.tile .tile-icon{font-size:30px}.tile .tile-title{font-weight:600;font-size:13px}.tile .tile-desc{font-size:11px;color:var(--color-text-muted);line-height:1.3}.field{margin-bottom:14px;display:flex;flex-direction:column;gap:6px}.field label{font-size:13px;font-weight:600;color:var(--color-text-muted)}input,select,textarea{border:1px solid var(--color-border);border-radius:8px;padding:11px 12px;font-size:15px;background:var(--color-surface);color:var(--color-text);width:100%}input:focus,select:focus,textarea:focus{outline:2px solid var(--color-primary);outline-offset:1px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--color-primary);color:#fff;border:none;border-radius:8px;padding:12px 16px;font-size:15px;font-weight:600;cursor:pointer;width:100%}.btn:disabled{opacity:.6;cursor:not-allowed}.btn.secondary{background:var(--color-surface);color:var(--color-primary);border:1px solid var(--color-primary)}.btn.danger{background:var(--color-danger)}.btn.small{width:auto;padding:8px 12px;font-size:13px}.error-text{color:var(--color-danger);font-size:13px;margin-top:-6px;margin-bottom:10px}.hint-text{color:var(--color-text-muted);font-size:12px}.login-screen{flex:1;display:flex;flex-direction:column;justify-content:center;padding:24px;max-width:420px;margin:0 auto;width:100%}.login-logo{text-align:center;margin-bottom:24px}.login-logo .emoji{font-size:44px}.login-logo h1{margin:8px 0 0;font-size:22px;color:var(--color-primary-dark)}.tab-row{display:flex;gap:8px;margin-bottom:18px;background:var(--color-border);border-radius:8px;padding:4px}.tab-row button{flex:1;border:none;background:transparent;padding:9px;border-radius:6px;font-weight:600;font-size:14px;color:var(--color-text-muted);cursor:pointer}.tab-row button.active{background:var(--color-surface);color:var(--color-primary);box-shadow:var(--shadow)}.list-item{display:flex;align-items:center;gap:12px;padding:12px 4px;border-bottom:1px solid var(--color-border);text-decoration:none;color:inherit;background:none;border-left:none;border-right:none;border-top:none;width:100%;text-align:left;cursor:pointer;font-family:inherit}.avatar{width:40px;height:40px;border-radius:50%;background:var(--color-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0}.list-item-body{flex:1;min-width:0}.list-item-title{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.list-item-subtitle{font-size:12px;color:var(--color-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.badge{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;padding:3px 8px;border-radius:999px;background:var(--color-border);color:var(--color-text-muted);white-space:nowrap}.badge.manager{background:#fde3d0;color:#a6480c}.badge.supervisor{background:#d9f0ea;color:#0f6b52}.badge.tech{background:#e3ebf5;color:#1d4d8f}.badge.danger,.badge.denied{background:#fbdcdc;color:#9c2020}.badge.pending{background:#fdf0d0;color:#8a5a00}.badge.ordered{background:#e3ebf5;color:#1d4d8f}.badge.fulfilled{background:#d9f0ea;color:#0f6b52}.search-box{margin-bottom:12px}.empty-state{text-align:center;padding:40px 16px;color:var(--color-text-muted)}.chat-thread{flex:1;display:flex;flex-direction:column;height:100%}.messages-scroll{flex:1;overflow-y:auto;padding:12px 16px;display:flex;flex-direction:column;gap:8px}.message-bubble{max-width:78%;padding:9px 12px;border-radius:14px;font-size:14px;line-height:1.35;word-wrap:break-word}.message-bubble.mine{align-self:flex-end;background:var(--color-primary);color:#fff;border-bottom-right-radius:4px}.message-bubble.theirs{align-self:flex-start;background:var(--color-surface);border:1px solid var(--color-border);border-bottom-left-radius:4px}.message-sender{font-size:10px;color:var(--color-text-muted);margin-bottom:2px}.message-time{font-size:9px;opacity:.7;margin-top:3px;text-align:right}.composer{display:flex;gap:8px;padding:10px 12px;padding-bottom:calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--color-border);background:var(--color-surface)}.composer input{flex:1}.composer .btn{width:auto;padding:10px 18px}.checkbox-row{display:flex;align-items:center;gap:10px;padding:10px 4px;border-bottom:1px solid var(--color-border)}.checkbox-row input{width:auto}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:flex-end;justify-content:center;z-index:100}.modal-sheet{background:var(--color-surface);width:100%;max-width:var(--max-width);max-height:85vh;overflow-y:auto;border-radius:16px 16px 0 0;padding:20px 16px;padding-bottom:calc(20px + env(safe-area-inset-bottom))}.modal-sheet h3{margin-top:0}.section-title{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;color:var(--color-text-muted);margin:20px 0 8px}.divider{border:none;border-top:1px solid var(--color-border);margin:16px 0}.role-pill-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}.center-loading{flex:1;display:flex;align-items:center;justify-content:center;color:var(--color-text-muted);padding:40px}