:root{--bg: #f8fafc;--panel: #ffffff;--panel-2: #ffffff;--border: #e5e7eb;--text: #111827;--muted: #6b7280;--primary: #2563eb;--primary-600: #1d4ed8;--primary-700: #1e40af;--focus: 0 0 0 3px rgba(37,99,235,.2);--radius: 10px;--radius-sm: 8px;--shadow-sm: 0 2px 8px rgba(17,24,39,.06);--shadow-md: 0 6px 18px rgba(17,24,39,.08);--shadow-lg: 0 12px 28px rgba(17,24,39,.1);--font-sans: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;color-scheme:light}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:15px;line-height:1.55;letter-spacing:.1px}.container{max-width:1160px;margin:32px auto;padding:0 20px}.header{position:sticky;top:0;z-index:50;padding:14px 20px;margin:-32px -20px 24px;background:#fffc;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-weight:600;letter-spacing:.2px;cursor:pointer;color:var(--text)}.brand-mark{width:60px;height:60px;border-radius:var(--radius-sm);background:linear-gradient(135deg,var(--primary),#6ea8ff);box-shadow:var(--shadow-sm)}.brand-logo{height:60px;width:auto;display:block;border-radius:var(--radius-sm);object-fit:contain}.link{color:var(--primary);text-decoration:none;opacity:.9}.link:hover{opacity:1;text-decoration:underline}.link-button{background:none;border:0;padding:0;color:var(--primary);font:inherit;cursor:pointer;text-decoration:none}.link-button:hover{text-decoration:underline}.user-email-input{width:220px;border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 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#2563eb47}.btn:active{transform:translateY(1px)}.btn.secondary{background:#fff;color:var(--text);border:1px solid var(--border);box-shadow:none}.btn.secondary:hover{background:#f3f4f6}.btn.secondary.active{background:#e0e7ff;border-color:var(--primary);color:var(--primary-700)}.btn.alt{background:#0d9488;box-shadow:0 6px 16px #0d948838}.btn.alt:hover{background:#0f766e;box-shadow:0 10px 24px #0d948847}.btn:disabled{opacity:.6;cursor:not-allowed;box-shadow:none}input[type=text],input[type=email],input[type=number],input[type=password],textarea,select{background:#fff;color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px;outline:none;transition:border-color .15s ease,box-shadow .15s 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2px;border-radius:var(--radius-sm);width:100%}.editable-cell:hover{background:#eef2ff}.editable-wrapper{display:grid;gap:6px}.editable-wrapper.saving .editable-input{opacity:.7}.editable-input{width:100%;border-radius:var(--radius-sm);border:1px solid var(--border);padding:8px 10px;font:inherit}.editable-input:focus{border-color:var(--primary);box-shadow:var(--focus);outline:none}.editable-wrapper textarea.editable-input{resize:vertical;min-height:44px;padding-top:10px;padding-bottom:10px}.cell-error{color:#ef4444;font-size:12px}.email-meta{font-size:12px;color:var(--muted)}.sent-tag{display:inline-block;margin-top:4px;font-size:12px;padding:4px 10px;border-radius:999px;background:#e0f2fe;color:#0369a1;font-weight:600;letter-spacing:.2px}.stage-tag{display:inline-block;margin-top:6px;font-size:12px;padding:4px 12px;border-radius:999px;background:linear-gradient(135deg,#6366f11f,#818cf83d);color:#312e81;font-weight:600;letter-spacing:.3px;text-transform:uppercase}.accordion{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:#fff}.acc-head{padding:12px 16px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;border-bottom:1px solid #eef2f7}.acc-head:hover{background:#f3f4f6}.acc-head.open{background:#f9fafb}.acc-body{padding:10px 16px;display:none}.acc-body.open{display:block}.chev{display:inline-block;width:10px;height:10px;border-right:2px solid #9ca3af;border-bottom:2px solid #9ca3af;transform:rotate(-45deg);transition:transform .2s ease;margin-left:10px;opacity:.9}.acc-head.open .chev{transform:rotate(45deg)}.pill{font-size:12px;padding:4px 10px;border-radius:999px;background:#f3f4f6;color:#374151;border:1px solid var(--border)}.row-actions{display:flex;gap:8px}h1{font-size:22px;margin:0;font-weight:700;color:var(--text);letter-spacing:.1px}h2{font-size:18px;margin:0;font-weight:600;color:var(--text);letter-spacing:.1px}h3{font-size:15px;margin:0;font-weight:600;color:var(--text);letter-spacing:.1px}.icon{width:16px;height:16px;display:inline-block;vertical-align:-3px;margin-right:6px;opacity:.95}.dropzone{border:1.5px dashed #cbd5e1;background:#f9fafb;border-radius:var(--radius);padding:18px;display:flex;align-items:center;gap:14px;cursor:pointer;transition:border-color .15s ease,background .15s ease,box-shadow .2s ease}.dropzone:hover{background:#f3f4f6;border-color:var(--primary);box-shadow:0 4px 16px #2563eb1f}.dropzone.drag{background:#eef2ff;border-color:#93c5fd;box-shadow:0 6px 18px 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